From c38dead3ea7e177728d90cd815cf4eead0c9f534 Mon Sep 17 00:00:00 2001 From: marha Date: Sat, 15 May 2010 16:28:11 +0000 Subject: xserver git update 15/5/2010 --- xorg-server/hw/xfree86/os-support/bsd/i386_video.c | 1816 ++++++++++---------- xorg-server/hw/xfree86/os-support/bus/Sbus.c | 1380 +++++++-------- .../hw/xfree86/os-support/linux/int10/linux.c | 1088 ++++++------ xorg-server/hw/xfree86/os-support/linux/lnx_agp.c | 748 ++++---- .../hw/xfree86/os-support/linux/lnx_video.c | 1756 +++++++++---------- .../hw/xfree86/os-support/shared/posix_tty.c | 1310 +++++++------- xorg-server/hw/xfree86/os-support/shared/vidmem.c | 592 +++---- .../hw/xfree86/os-support/solaris/sun_agp.c | 654 +++---- 8 files changed, 4672 insertions(+), 4672 deletions(-) (limited to 'xorg-server/hw/xfree86/os-support') diff --git a/xorg-server/hw/xfree86/os-support/bsd/i386_video.c b/xorg-server/hw/xfree86/os-support/bsd/i386_video.c index 10db9c7b8..0d457193a 100644 --- a/xorg-server/hw/xfree86/os-support/bsd/i386_video.c +++ b/xorg-server/hw/xfree86/os-support/bsd/i386_video.c @@ -1,908 +1,908 @@ -/* - * Copyright 1992 by Rich Murphey - * Copyright 1993 by David Wexelblat - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the names of Rich Murphey and David Wexelblat - * not be used in advertising or publicity pertaining to distribution of - * the software without specific, written prior permission. Rich Murphey and - * David Wexelblat make no representations about the suitability of this - * software for any purpose. It is provided "as is" without express or - * implied warranty. - * - * RICH MURPHEY AND DAVID WEXELBLAT DISCLAIM ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND - * FITNESS, IN NO EVENT SHALL RICH MURPHEY OR DAVID WEXELBLAT BE LIABLE FOR - * ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER - * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF - * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN - * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - */ - -#ifdef HAVE_XORG_CONFIG_H -#include -#endif - -#include -#include "xf86.h" -#include "xf86Priv.h" - -#include -#include - -#ifdef HAS_MTRR_SUPPORT -#ifndef __NetBSD__ -#include -#include -#else -#include "memrange.h" -#endif -#define X_MTRR_ID "XFree86" -#endif - -#if defined(HAS_MTRR_BUILTIN) && defined(__NetBSD__) -#include -#include -#include -#ifdef __x86_64__ -#define i386_set_mtrr x86_64_set_mtrr -#define i386_get_mtrr x86_64_get_mtrr -#define i386_iopl x86_64_iopl -#endif -#endif - -#include "xf86_OSlib.h" -#include "xf86OSpriv.h" - -#if defined(__NetBSD__) && !defined(MAP_FILE) -#define MAP_FLAGS MAP_SHARED -#else -#define MAP_FLAGS (MAP_FILE | MAP_SHARED) -#endif - -#ifndef MAP_FAILED -#define MAP_FAILED ((caddr_t)-1) -#endif - -#ifdef __OpenBSD__ -#define SYSCTL_MSG "\tCheck that you have set 'machdep.allowaperture=1'\n"\ - "\tin /etc/sysctl.conf and reboot your machine\n" \ - "\trefer to xf86(4) for details" -#define SYSCTL_MSG2 \ - "Check that you have set 'machdep.allowaperture=2'\n" \ - "\tin /etc/sysctl.conf and reboot your machine\n" \ - "\trefer to xf86(4) for details" -#endif - -/***************************************************************************/ -/* Video Memory Mapping section */ -/***************************************************************************/ - -static Bool useDevMem = FALSE; -static int devMemFd = -1; - -#ifdef HAS_APERTURE_DRV -#define DEV_APERTURE "/dev/xf86" -#endif -#define DEV_MEM "/dev/mem" - -static pointer mapVidMem(int, unsigned long, unsigned long, int); -static void unmapVidMem(int, pointer, unsigned long); - -#ifdef HAS_MTRR_SUPPORT -static pointer setWC(int, unsigned long, unsigned long, Bool, MessageType); -static void undoWC(int, pointer); -static Bool cleanMTRR(void); -#endif -#if defined(HAS_MTRR_BUILTIN) && defined(__NetBSD__) -static pointer NetBSDsetWC(int, unsigned long, unsigned long, Bool, - MessageType); -static void NetBSDundoWC(int, pointer); -#endif - -/* - * Check if /dev/mem can be mmap'd. If it can't print a warning when - * "warn" is TRUE. - */ -static void -checkDevMem(Bool warn) -{ - static Bool devMemChecked = FALSE; - int fd; - pointer base; - - if (devMemChecked) - return; - devMemChecked = TRUE; - - if ((fd = open(DEV_MEM, O_RDWR)) >= 0) - { - /* Try to map a page at the VGA address */ - base = mmap((caddr_t)0, 4096, PROT_READ | PROT_WRITE, - MAP_FLAGS, fd, (off_t)0xA0000); - - if (base != MAP_FAILED) - { - munmap((caddr_t)base, 4096); - devMemFd = fd; - useDevMem = TRUE; - return; - } else { - /* This should not happen */ - if (warn) - { - xf86Msg(X_WARNING, "checkDevMem: failed to mmap %s (%s)\n", - DEV_MEM, strerror(errno)); - } - useDevMem = FALSE; - return; - } - } -#ifndef HAS_APERTURE_DRV - if (warn) - { - xf86Msg(X_WARNING, "checkDevMem: failed to open %s (%s)\n", - DEV_MEM, strerror(errno)); - } - useDevMem = FALSE; - return; -#else - /* Failed to open /dev/mem, try the aperture driver */ - if ((fd = open(DEV_APERTURE, O_RDWR)) >= 0) - { - /* Try to map a page at the VGA address */ - base = mmap((caddr_t)0, 4096, PROT_READ | PROT_WRITE, - MAP_FLAGS, fd, (off_t)0xA0000); - - if (base != MAP_FAILED) - { - munmap((caddr_t)base, 4096); - devMemFd = fd; - useDevMem = TRUE; - xf86Msg(X_INFO, "checkDevMem: using aperture driver %s\n", - DEV_APERTURE); - return; - } else { - - if (warn) - { - xf86Msg(X_WARNING, "checkDevMem: failed to mmap %s (%s)\n", - DEV_APERTURE, strerror(errno)); - } - } - } else { - if (warn) - { -#ifndef __OpenBSD__ - xf86Msg(X_WARNING, "checkDevMem: failed to open %s and %s\n" - "\t(%s)\n", DEV_MEM, DEV_APERTURE, strerror(errno)); -#else /* __OpenBSD__ */ - xf86Msg(X_WARNING, "checkDevMem: failed to open %s and %s\n" - "\t(%s)\n%s", DEV_MEM, DEV_APERTURE, strerror(errno), - SYSCTL_MSG); -#endif /* __OpenBSD__ */ - } - } - - useDevMem = FALSE; - return; - -#endif -} - -void -xf86OSInitVidMem(VidMemInfoPtr pVidMem) -{ - checkDevMem(TRUE); - pVidMem->linearSupported = useDevMem; - pVidMem->mapMem = mapVidMem; - pVidMem->unmapMem = unmapVidMem; - -#if HAVE_PCI_SYSTEM_INIT_DEV_MEM - if (useDevMem) - pci_system_init_dev_mem(devMemFd); -#endif - -#ifdef HAS_MTRR_SUPPORT - if (useDevMem) { - if (cleanMTRR()) { - pVidMem->setWC = setWC; - pVidMem->undoWC = undoWC; - } - } -#endif -#if defined(HAS_MTRR_BUILTIN) && defined(__NetBSD__) - pVidMem->setWC = NetBSDsetWC; - pVidMem->undoWC = NetBSDundoWC; -#endif - pVidMem->initialised = TRUE; -} - -static pointer -mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags) -{ - pointer base; - - checkDevMem(FALSE); - - if (useDevMem) - { - if (devMemFd < 0) - { - FatalError("xf86MapVidMem: failed to open %s (%s)", - DEV_MEM, strerror(errno)); - } - base = mmap((caddr_t)0, Size, - (flags & VIDMEM_READONLY) ? - PROT_READ : (PROT_READ | PROT_WRITE), - MAP_FLAGS, devMemFd, (off_t)Base); - if (base == MAP_FAILED) - { - FatalError("%s: could not mmap %s [s=%lx,a=%lx] (%s)", - "xf86MapVidMem", DEV_MEM, Size, Base, - strerror(errno)); - } - return(base); - } - - /* else, mmap /dev/vga */ - if ((unsigned long)Base < 0xA0000 || (unsigned long)Base >= 0xC0000) - { - FatalError("%s: Address 0x%lx outside allowable range", - "xf86MapVidMem", Base); - } - base = mmap(0, Size, - (flags & VIDMEM_READONLY) ? - PROT_READ : (PROT_READ | PROT_WRITE), - MAP_FLAGS, xf86Info.screenFd, - (unsigned long)Base - 0xA0000 - ); - if (base == MAP_FAILED) - { - FatalError("xf86MapVidMem: Could not mmap /dev/vga (%s)", - strerror(errno)); - } - return(base); -} - -static void -unmapVidMem(int ScreenNum, pointer Base, unsigned long Size) -{ - munmap((caddr_t)Base, Size); -} - -/* - * Read BIOS via mmap()ing DEV_MEM - */ - -int -xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf, - int Len) -{ - unsigned char *ptr; - int psize; - int mlen; - - checkDevMem(TRUE); - if (devMemFd == -1) { - return(-1); - } - - psize = getpagesize(); - Offset += Base & (psize - 1); - Base &= ~(psize - 1); - mlen = (Offset + Len + psize - 1) & ~(psize - 1); - ptr = (unsigned char *)mmap((caddr_t)0, mlen, PROT_READ, - MAP_SHARED, devMemFd, (off_t)Base); - if ((long)ptr == -1) - { - xf86Msg(X_WARNING, - "xf86ReadBIOS: %s mmap[s=%x,a=%lx,o=%lx] failed (%s)\n", - DEV_MEM, Len, Base, Offset, strerror(errno)); -#ifdef __OpenBSD__ - if (Base < 0xa0000) { - xf86Msg(X_WARNING, SYSCTL_MSG2); - } -#endif - return(-1); - } -#ifdef DEBUG - ErrorF("xf86ReadBIOS: BIOS at 0x%08x has signature 0x%04x\n", - Base, ptr[0] | (ptr[1] << 8)); -#endif - (void)memcpy(Buf, (void *)(ptr + Offset), Len); - (void)munmap((caddr_t)ptr, mlen); -#ifdef DEBUG - xf86MsgVerb(X_INFO, 3, "xf86ReadBIOS(%x, %x, Buf, %x)" - "-> %02x %02x %02x %02x...\n", - Base, Offset, Len, Buf[0], Buf[1], Buf[2], Buf[3]); -#endif - return(Len); -} - -#ifdef USE_I386_IOPL -/***************************************************************************/ -/* I/O Permissions section */ -/***************************************************************************/ - -static Bool ExtendedEnabled = FALSE; - -Bool -xf86EnableIO() -{ - if (ExtendedEnabled) - return TRUE; - - if (i386_iopl(TRUE) < 0) - { -#ifndef __OpenBSD__ - xf86Msg(X_WARNING,"%s: Failed to set IOPL for extended I/O", - "xf86EnableIO"); -#else - xf86Msg(X_WARNING,"%s: Failed to set IOPL for extended I/O\n%s", - "xf86EnableIO", SYSCTL_MSG); -#endif - return FALSE; - } - ExtendedEnabled = TRUE; - - return TRUE; -} - -void -xf86DisableIO() -{ - if (!ExtendedEnabled) - return; - - i386_iopl(FALSE); - ExtendedEnabled = FALSE; - - return; -} - -#endif /* USE_I386_IOPL */ - -#ifdef USE_AMD64_IOPL -/***************************************************************************/ -/* I/O Permissions section */ -/***************************************************************************/ - -static Bool ExtendedEnabled = FALSE; - -Bool -xf86EnableIO() -{ - if (ExtendedEnabled) - return TRUE; - - if (amd64_iopl(TRUE) < 0) - { -#ifndef __OpenBSD__ - xf86Msg(X_WARNING,"%s: Failed to set IOPL for extended I/O", - "xf86EnableIO"); -#else - xf86Msg(X_WARNING,"%s: Failed to set IOPL for extended I/O\n%s", - "xf86EnableIO", SYSCTL_MSG); -#endif - return FALSE; - } - ExtendedEnabled = TRUE; - - return TRUE; -} - -void -xf86DisableIO() -{ - if (!ExtendedEnabled) - return; - - if (amd64_iopl(FALSE) == 0) { - ExtendedEnabled = FALSE; - } - /* Otherwise, the X server has revoqued its root uid, - and thus cannot give up IO privileges any more */ - - return; -} - -#endif /* USE_AMD64_IOPL */ - -#ifdef USE_DEV_IO -static int IoFd = -1; - -Bool -xf86EnableIO() -{ - if (IoFd >= 0) - return TRUE; - - if ((IoFd = open("/dev/io", O_RDWR)) == -1) - { - xf86Msg(X_WARNING,"xf86EnableIO: " - "Failed to open /dev/io for extended I/O"); - return FALSE; - } - return TRUE; -} - -void -xf86DisableIO() -{ - if (IoFd < 0) - return; - - close(IoFd); - IoFd = -1; - return; -} - -#endif - -#ifdef __NetBSD__ -/***************************************************************************/ -/* Set TV output mode */ -/***************************************************************************/ -void -xf86SetTVOut(int mode) -{ - switch (xf86Info.consType) - { -#ifdef PCCONS_SUPPORT - case PCCONS:{ - - if (ioctl (xf86Info.consoleFd, CONSOLE_X_TV_ON, &mode) < 0) - { - xf86Msg(X_WARNING, - "xf86SetTVOut: Could not set console to TV output, %s\n", - strerror(errno)); - } - } - break; -#endif /* PCCONS_SUPPORT */ - - default: - FatalError("Xf86SetTVOut: Unsupported console"); - break; - } - return; -} - -void -xf86SetRGBOut() -{ - switch (xf86Info.consType) - { -#ifdef PCCONS_SUPPORT - case PCCONS:{ - - if (ioctl (xf86Info.consoleFd, CONSOLE_X_TV_OFF, 0) < 0) - { - xf86Msg(X_WARNING, - "xf86SetTVOut: Could not set console to RGB output, %s\n", - strerror(errno)); - } - } - break; -#endif /* PCCONS_SUPPORT */ - - default: - FatalError("Xf86SetTVOut: Unsupported console"); - break; - } - return; -} -#endif - -#ifdef HAS_MTRR_SUPPORT -/* memory range (MTRR) support for FreeBSD */ - -/* - * This code is experimental. Some parts may be overkill, and other parts - * may be incomplete. - */ - -/* - * getAllRanges returns the full list of memory ranges with attributes set. - */ - -static struct mem_range_desc * -getAllRanges(int *nmr) -{ - struct mem_range_desc *mrd; - struct mem_range_op mro; - - /* - * Find how many ranges there are. If this fails, then the kernel - * probably doesn't have MTRR support. - */ - mro.mo_arg[0] = 0; - if (ioctl(devMemFd, MEMRANGE_GET, &mro)) - return NULL; - *nmr = mro.mo_arg[0]; - mrd = xnfalloc(*nmr * sizeof(struct mem_range_desc)); - mro.mo_arg[0] = *nmr; - mro.mo_desc = mrd; - if (ioctl(devMemFd, MEMRANGE_GET, &mro)) { - xfree(mrd); - return NULL; - } - return mrd; -} - -/* - * cleanMTRR removes any memory attribute that may be left by a previous - * X server. Normally there won't be any, but this takes care of the - * case where a server crashed without being able finish cleaning up. - */ - -static Bool -cleanMTRR() -{ - struct mem_range_desc *mrd; - struct mem_range_op mro; - int nmr, i; - - /* This shouldn't happen */ - if (devMemFd < 0) - return FALSE; - - if (!(mrd = getAllRanges(&nmr))) - return FALSE; - - for (i = 0; i < nmr; i++) { - if (strcmp(mrd[i].mr_owner, X_MTRR_ID) == 0 && - (mrd[i].mr_flags & MDF_ACTIVE)) { -#ifdef DEBUG - ErrorF("Clean for (0x%lx,0x%lx)\n", - (unsigned long)mrd[i].mr_base, - (unsigned long)mrd[i].mr_len); -#endif - if (mrd[i].mr_flags & MDF_FIXACTIVE) { - mro.mo_arg[0] = MEMRANGE_SET_UPDATE; - mrd[i].mr_flags = MDF_UNCACHEABLE; - } else { - mro.mo_arg[0] = MEMRANGE_SET_REMOVE; - } - mro.mo_desc = mrd + i; - ioctl(devMemFd, MEMRANGE_SET, &mro); - } - } -#ifdef DEBUG - sleep(10); -#endif - xfree(mrd); - return TRUE; -} - -typedef struct x_RangeRec { - struct mem_range_desc mrd; - Bool wasWC; - struct x_RangeRec * next; -} RangeRec, *RangePtr; - -static void -freeRangeList(RangePtr range) -{ - RangePtr rp; - - while (range) { - rp = range; - range = rp->next; - xfree(rp); - } -} - -static RangePtr -dupRangeList(RangePtr list) -{ - RangePtr new = NULL, rp, p; - - rp = list; - while (rp) { - p = xnfalloc(sizeof(RangeRec)); - *p = *rp; - p->next = new; - new = p; - rp = rp->next; - } - return new; -} - -static RangePtr -sortRangeList(RangePtr list) -{ - RangePtr rp1, rp2, copy, sorted = NULL, minp, prev, minprev; - unsigned long minBase; - - /* Sort by base address */ - rp1 = copy = dupRangeList(list); - while (rp1) { - minBase = rp1->mrd.mr_base; - minp = rp1; - minprev = NULL; - prev = rp1; - rp2 = rp1->next; - while (rp2) { - if (rp2->mrd.mr_base < minBase) { - minBase = rp2->mrd.mr_base; - minp = rp2; - minprev = prev; - } - prev = rp2; - rp2 = rp2->next; - } - if (minprev) { - minprev->next = minp->next; - rp1 = copy; - } else { - rp1 = minp->next; - } - minp->next = sorted; - sorted = minp; - } - return sorted; -} - -/* - * findRanges returns a list of ranges that overlap the specified range. - */ - -static void -findRanges(unsigned long base, unsigned long size, RangePtr *ucp, RangePtr *wcp) -{ - struct mem_range_desc *mrd; - int nmr, i; - RangePtr rp, *p; - - if (!(mrd = getAllRanges(&nmr))) - return; - - for (i = 0; i < nmr; i++) { - if ((mrd[i].mr_flags & MDF_ACTIVE) && - mrd[i].mr_base < base + size && - mrd[i].mr_base + mrd[i].mr_len > base) { - if (mrd[i].mr_flags & MDF_WRITECOMBINE) - p = wcp; - else if (mrd[i].mr_flags & MDF_UNCACHEABLE) - p = ucp; - else - continue; - rp = xnfalloc(sizeof(RangeRec)); - rp->mrd = mrd[i]; - rp->next = *p; - *p = rp; - } - } - xfree(mrd); -} - -/* - * This checks if the existing overlapping ranges fully cover the requested - * range. Is this overkill? - */ - -static Bool -fullCoverage(unsigned long base, unsigned long size, RangePtr overlap) -{ - RangePtr rp1, sorted = NULL; - unsigned long end; - - sorted = sortRangeList(overlap); - /* Look for gaps */ - rp1 = sorted; - end = base + size; - while (rp1) { - if (rp1->mrd.mr_base > base) { - freeRangeList(sorted); - return FALSE; - } else { - base = rp1->mrd.mr_base + rp1->mrd.mr_len; - } - if (base >= end) { - freeRangeList(sorted); - return TRUE; - } - rp1 = rp1->next; - } - freeRangeList(sorted); - return FALSE; -} - -static pointer -addWC(int screenNum, unsigned long base, unsigned long size, MessageType from) -{ - RangePtr uc = NULL, wc = NULL, retlist = NULL; - struct mem_range_desc mrd; - struct mem_range_op mro; - - findRanges(base, size, &uc, &wc); - - /* See of the full range is already WC */ - if (!uc && fullCoverage(base, size, wc)) { - xf86DrvMsg(screenNum, from, - "Write-combining range (0x%lx,0x%lx) was already set\n", - base, size); - return NULL; - } - - /* Otherwise, try to add the new range */ - mrd.mr_base = base; - mrd.mr_len = size; - strcpy(mrd.mr_owner, X_MTRR_ID); - mrd.mr_flags = MDF_WRITECOMBINE; - mro.mo_desc = &mrd; - mro.mo_arg[0] = MEMRANGE_SET_UPDATE; - if (ioctl(devMemFd, MEMRANGE_SET, &mro)) { - xf86DrvMsg(screenNum, X_WARNING, - "Failed to set write-combining range " - "(0x%lx,0x%lx)\n", base, size); - return NULL; - } else { - xf86DrvMsg(screenNum, from, - "Write-combining range (0x%lx,0x%lx)\n", base, size); - retlist = xnfalloc(sizeof(RangeRec)); - retlist->mrd = mrd; - retlist->wasWC = FALSE; - retlist->next = NULL; - return retlist; - } -} - -static pointer -delWC(int screenNum, unsigned long base, unsigned long size, MessageType from) -{ - RangePtr uc = NULL, wc = NULL, retlist = NULL; - struct mem_range_desc mrd; - struct mem_range_op mro; - - findRanges(base, size, &uc, &wc); - - /* - * See of the full range is already not WC, or if there is full - * coverage from UC ranges. - */ - if (!wc || fullCoverage(base, size, uc)) { - xf86DrvMsg(screenNum, from, - "Write-combining range (0x%lx,0x%lx) was already clear\n", - base, size); - return NULL; - } - - /* Otherwise, try to add the new range */ - mrd.mr_base = base; - mrd.mr_len = size; - strcpy(mrd.mr_owner, X_MTRR_ID); - mrd.mr_flags = MDF_UNCACHEABLE; - mro.mo_desc = &mrd; - mro.mo_arg[0] = MEMRANGE_SET_UPDATE; - if (ioctl(devMemFd, MEMRANGE_SET, &mro)) { - xf86DrvMsg(screenNum, X_WARNING, - "Failed to remove write-combining range " - "(0x%lx,0x%lx)\n", base, size); - /* XXX Should then remove all of the overlapping WC ranges */ - return NULL; - } else { - xf86DrvMsg(screenNum, from, - "Removed Write-combining range (0x%lx,0x%lx)\n", - base, size); - retlist = xnfalloc(sizeof(RangeRec)); - retlist->mrd = mrd; - retlist->wasWC = TRUE; - retlist->next = NULL; - return retlist; - } -} - -static pointer -setWC(int screenNum, unsigned long base, unsigned long size, Bool enable, - MessageType from) -{ - if (enable) - return addWC(screenNum, base, size, from); - else - return delWC(screenNum, base, size, from); -} - -static void -undoWC(int screenNum, pointer list) -{ - RangePtr rp; - struct mem_range_op mro; - Bool failed; - - rp = list; - while (rp) { -#ifdef DEBUG - ErrorF("Undo for (0x%lx,0x%lx), %d\n", - (unsigned long)rp->mrd.mr_base, - (unsigned long)rp->mrd.mr_len, rp->wasWC); -#endif - failed = FALSE; - if (rp->wasWC) { - mro.mo_arg[0] = MEMRANGE_SET_UPDATE; - rp->mrd.mr_flags = MDF_WRITECOMBINE; - strcpy(rp->mrd.mr_owner, "unknown"); - } else { - mro.mo_arg[0] = MEMRANGE_SET_REMOVE; - } - mro.mo_desc = &rp->mrd; - - if (ioctl(devMemFd, MEMRANGE_SET, &mro)) { - if (!rp->wasWC) { - mro.mo_arg[0] = MEMRANGE_SET_UPDATE; - rp->mrd.mr_flags = MDF_UNCACHEABLE; - strcpy(rp->mrd.mr_owner, "unknown"); - if (ioctl(devMemFd, MEMRANGE_SET, &mro)) - failed = TRUE; - } else - failed = TRUE; - } - if (failed) { - xf86DrvMsg(screenNum, X_WARNING, - "Failed to restore MTRR range (0x%lx,0x%lx)\n", - (unsigned long)rp->mrd.mr_base, - (unsigned long)rp->mrd.mr_len); - } - rp = rp->next; - } -} - -#endif /* HAS_MTRR_SUPPORT */ - - -#if defined(HAS_MTRR_BUILTIN) && defined(__NetBSD__) -static pointer -NetBSDsetWC(int screenNum, unsigned long base, unsigned long size, Bool enable, - MessageType from) -{ - struct mtrr *mtrrp; - int n; - - xf86DrvMsg(screenNum, X_WARNING, - "%s MTRR %lx - %lx\n", enable ? "set" : "remove", - base, (base + size)); - - mtrrp = xnfalloc(sizeof (struct mtrr)); - mtrrp->base = base; - mtrrp->len = size; - mtrrp->type = MTRR_TYPE_WC; - - /* - * MTRR_PRIVATE will make this MTRR get reset automatically - * if this process exits, so we have no need for an explicit - * cleanup operation when starting a new server. - */ - - if (enable) - mtrrp->flags = MTRR_VALID | MTRR_PRIVATE; - else - mtrrp->flags = 0; - n = 1; - - if (i386_set_mtrr(mtrrp, &n) < 0) { - xfree(mtrrp); - return NULL; - } - return mtrrp; -} - -static void -NetBSDundoWC(int screenNum, pointer list) -{ - struct mtrr *mtrrp = (struct mtrr *)list; - int n; - - if (mtrrp == NULL) - return; - n = 1; - mtrrp->flags &= ~MTRR_VALID; - i386_set_mtrr(mtrrp, &n); - xfree(mtrrp); -} -#endif +/* + * Copyright 1992 by Rich Murphey + * Copyright 1993 by David Wexelblat + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the names of Rich Murphey and David Wexelblat + * not be used in advertising or publicity pertaining to distribution of + * the software without specific, written prior permission. Rich Murphey and + * David Wexelblat make no representations about the suitability of this + * software for any purpose. It is provided "as is" without express or + * implied warranty. + * + * RICH MURPHEY AND DAVID WEXELBLAT DISCLAIM ALL WARRANTIES WITH REGARD TO + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RICH MURPHEY OR DAVID WEXELBLAT BE LIABLE FOR + * ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF + * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#ifdef HAVE_XORG_CONFIG_H +#include +#endif + +#include +#include "xf86.h" +#include "xf86Priv.h" + +#include +#include + +#ifdef HAS_MTRR_SUPPORT +#ifndef __NetBSD__ +#include +#include +#else +#include "memrange.h" +#endif +#define X_MTRR_ID "XFree86" +#endif + +#if defined(HAS_MTRR_BUILTIN) && defined(__NetBSD__) +#include +#include +#include +#ifdef __x86_64__ +#define i386_set_mtrr x86_64_set_mtrr +#define i386_get_mtrr x86_64_get_mtrr +#define i386_iopl x86_64_iopl +#endif +#endif + +#include "xf86_OSlib.h" +#include "xf86OSpriv.h" + +#if defined(__NetBSD__) && !defined(MAP_FILE) +#define MAP_FLAGS MAP_SHARED +#else +#define MAP_FLAGS (MAP_FILE | MAP_SHARED) +#endif + +#ifndef MAP_FAILED +#define MAP_FAILED ((caddr_t)-1) +#endif + +#ifdef __OpenBSD__ +#define SYSCTL_MSG "\tCheck that you have set 'machdep.allowaperture=1'\n"\ + "\tin /etc/sysctl.conf and reboot your machine\n" \ + "\trefer to xf86(4) for details" +#define SYSCTL_MSG2 \ + "Check that you have set 'machdep.allowaperture=2'\n" \ + "\tin /etc/sysctl.conf and reboot your machine\n" \ + "\trefer to xf86(4) for details" +#endif + +/***************************************************************************/ +/* Video Memory Mapping section */ +/***************************************************************************/ + +static Bool useDevMem = FALSE; +static int devMemFd = -1; + +#ifdef HAS_APERTURE_DRV +#define DEV_APERTURE "/dev/xf86" +#endif +#define DEV_MEM "/dev/mem" + +static pointer mapVidMem(int, unsigned long, unsigned long, int); +static void unmapVidMem(int, pointer, unsigned long); + +#ifdef HAS_MTRR_SUPPORT +static pointer setWC(int, unsigned long, unsigned long, Bool, MessageType); +static void undoWC(int, pointer); +static Bool cleanMTRR(void); +#endif +#if defined(HAS_MTRR_BUILTIN) && defined(__NetBSD__) +static pointer NetBSDsetWC(int, unsigned long, unsigned long, Bool, + MessageType); +static void NetBSDundoWC(int, pointer); +#endif + +/* + * Check if /dev/mem can be mmap'd. If it can't print a warning when + * "warn" is TRUE. + */ +static void +checkDevMem(Bool warn) +{ + static Bool devMemChecked = FALSE; + int fd; + pointer base; + + if (devMemChecked) + return; + devMemChecked = TRUE; + + if ((fd = open(DEV_MEM, O_RDWR)) >= 0) + { + /* Try to map a page at the VGA address */ + base = mmap((caddr_t)0, 4096, PROT_READ | PROT_WRITE, + MAP_FLAGS, fd, (off_t)0xA0000); + + if (base != MAP_FAILED) + { + munmap((caddr_t)base, 4096); + devMemFd = fd; + useDevMem = TRUE; + return; + } else { + /* This should not happen */ + if (warn) + { + xf86Msg(X_WARNING, "checkDevMem: failed to mmap %s (%s)\n", + DEV_MEM, strerror(errno)); + } + useDevMem = FALSE; + return; + } + } +#ifndef HAS_APERTURE_DRV + if (warn) + { + xf86Msg(X_WARNING, "checkDevMem: failed to open %s (%s)\n", + DEV_MEM, strerror(errno)); + } + useDevMem = FALSE; + return; +#else + /* Failed to open /dev/mem, try the aperture driver */ + if ((fd = open(DEV_APERTURE, O_RDWR)) >= 0) + { + /* Try to map a page at the VGA address */ + base = mmap((caddr_t)0, 4096, PROT_READ | PROT_WRITE, + MAP_FLAGS, fd, (off_t)0xA0000); + + if (base != MAP_FAILED) + { + munmap((caddr_t)base, 4096); + devMemFd = fd; + useDevMem = TRUE; + xf86Msg(X_INFO, "checkDevMem: using aperture driver %s\n", + DEV_APERTURE); + return; + } else { + + if (warn) + { + xf86Msg(X_WARNING, "checkDevMem: failed to mmap %s (%s)\n", + DEV_APERTURE, strerror(errno)); + } + } + } else { + if (warn) + { +#ifndef __OpenBSD__ + xf86Msg(X_WARNING, "checkDevMem: failed to open %s and %s\n" + "\t(%s)\n", DEV_MEM, DEV_APERTURE, strerror(errno)); +#else /* __OpenBSD__ */ + xf86Msg(X_WARNING, "checkDevMem: failed to open %s and %s\n" + "\t(%s)\n%s", DEV_MEM, DEV_APERTURE, strerror(errno), + SYSCTL_MSG); +#endif /* __OpenBSD__ */ + } + } + + useDevMem = FALSE; + return; + +#endif +} + +void +xf86OSInitVidMem(VidMemInfoPtr pVidMem) +{ + checkDevMem(TRUE); + pVidMem->linearSupported = useDevMem; + pVidMem->mapMem = mapVidMem; + pVidMem->unmapMem = unmapVidMem; + +#if HAVE_PCI_SYSTEM_INIT_DEV_MEM + if (useDevMem) + pci_system_init_dev_mem(devMemFd); +#endif + +#ifdef HAS_MTRR_SUPPORT + if (useDevMem) { + if (cleanMTRR()) { + pVidMem->setWC = setWC; + pVidMem->undoWC = undoWC; + } + } +#endif +#if defined(HAS_MTRR_BUILTIN) && defined(__NetBSD__) + pVidMem->setWC = NetBSDsetWC; + pVidMem->undoWC = NetBSDundoWC; +#endif + pVidMem->initialised = TRUE; +} + +static pointer +mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags) +{ + pointer base; + + checkDevMem(FALSE); + + if (useDevMem) + { + if (devMemFd < 0) + { + FatalError("xf86MapVidMem: failed to open %s (%s)", + DEV_MEM, strerror(errno)); + } + base = mmap((caddr_t)0, Size, + (flags & VIDMEM_READONLY) ? + PROT_READ : (PROT_READ | PROT_WRITE), + MAP_FLAGS, devMemFd, (off_t)Base); + if (base == MAP_FAILED) + { + FatalError("%s: could not mmap %s [s=%lx,a=%lx] (%s)", + "xf86MapVidMem", DEV_MEM, Size, Base, + strerror(errno)); + } + return(base); + } + + /* else, mmap /dev/vga */ + if ((unsigned long)Base < 0xA0000 || (unsigned long)Base >= 0xC0000) + { + FatalError("%s: Address 0x%lx outside allowable range", + "xf86MapVidMem", Base); + } + base = mmap(0, Size, + (flags & VIDMEM_READONLY) ? + PROT_READ : (PROT_READ | PROT_WRITE), + MAP_FLAGS, xf86Info.screenFd, + (unsigned long)Base - 0xA0000 + ); + if (base == MAP_FAILED) + { + FatalError("xf86MapVidMem: Could not mmap /dev/vga (%s)", + strerror(errno)); + } + return(base); +} + +static void +unmapVidMem(int ScreenNum, pointer Base, unsigned long Size) +{ + munmap((caddr_t)Base, Size); +} + +/* + * Read BIOS via mmap()ing DEV_MEM + */ + +int +xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf, + int Len) +{ + unsigned char *ptr; + int psize; + int mlen; + + checkDevMem(TRUE); + if (devMemFd == -1) { + return(-1); + } + + psize = getpagesize(); + Offset += Base & (psize - 1); + Base &= ~(psize - 1); + mlen = (Offset + Len + psize - 1) & ~(psize - 1); + ptr = (unsigned char *)mmap((caddr_t)0, mlen, PROT_READ, + MAP_SHARED, devMemFd, (off_t)Base); + if ((long)ptr == -1) + { + xf86Msg(X_WARNING, + "xf86ReadBIOS: %s mmap[s=%x,a=%lx,o=%lx] failed (%s)\n", + DEV_MEM, Len, Base, Offset, strerror(errno)); +#ifdef __OpenBSD__ + if (Base < 0xa0000) { + xf86Msg(X_WARNING, SYSCTL_MSG2); + } +#endif + return(-1); + } +#ifdef DEBUG + ErrorF("xf86ReadBIOS: BIOS at 0x%08x has signature 0x%04x\n", + Base, ptr[0] | (ptr[1] << 8)); +#endif + (void)memcpy(Buf, (void *)(ptr + Offset), Len); + (void)munmap((caddr_t)ptr, mlen); +#ifdef DEBUG + xf86MsgVerb(X_INFO, 3, "xf86ReadBIOS(%x, %x, Buf, %x)" + "-> %02x %02x %02x %02x...\n", + Base, Offset, Len, Buf[0], Buf[1], Buf[2], Buf[3]); +#endif + return(Len); +} + +#ifdef USE_I386_IOPL +/***************************************************************************/ +/* I/O Permissions section */ +/***************************************************************************/ + +static Bool ExtendedEnabled = FALSE; + +Bool +xf86EnableIO() +{ + if (ExtendedEnabled) + return TRUE; + + if (i386_iopl(TRUE) < 0) + { +#ifndef __OpenBSD__ + xf86Msg(X_WARNING,"%s: Failed to set IOPL for extended I/O", + "xf86EnableIO"); +#else + xf86Msg(X_WARNING,"%s: Failed to set IOPL for extended I/O\n%s", + "xf86EnableIO", SYSCTL_MSG); +#endif + return FALSE; + } + ExtendedEnabled = TRUE; + + return TRUE; +} + +void +xf86DisableIO() +{ + if (!ExtendedEnabled) + return; + + i386_iopl(FALSE); + ExtendedEnabled = FALSE; + + return; +} + +#endif /* USE_I386_IOPL */ + +#ifdef USE_AMD64_IOPL +/***************************************************************************/ +/* I/O Permissions section */ +/***************************************************************************/ + +static Bool ExtendedEnabled = FALSE; + +Bool +xf86EnableIO() +{ + if (ExtendedEnabled) + return TRUE; + + if (amd64_iopl(TRUE) < 0) + { +#ifndef __OpenBSD__ + xf86Msg(X_WARNING,"%s: Failed to set IOPL for extended I/O", + "xf86EnableIO"); +#else + xf86Msg(X_WARNING,"%s: Failed to set IOPL for extended I/O\n%s", + "xf86EnableIO", SYSCTL_MSG); +#endif + return FALSE; + } + ExtendedEnabled = TRUE; + + return TRUE; +} + +void +xf86DisableIO() +{ + if (!ExtendedEnabled) + return; + + if (amd64_iopl(FALSE) == 0) { + ExtendedEnabled = FALSE; + } + /* Otherwise, the X server has revoqued its root uid, + and thus cannot give up IO privileges any more */ + + return; +} + +#endif /* USE_AMD64_IOPL */ + +#ifdef USE_DEV_IO +static int IoFd = -1; + +Bool +xf86EnableIO() +{ + if (IoFd >= 0) + return TRUE; + + if ((IoFd = open("/dev/io", O_RDWR)) == -1) + { + xf86Msg(X_WARNING,"xf86EnableIO: " + "Failed to open /dev/io for extended I/O"); + return FALSE; + } + return TRUE; +} + +void +xf86DisableIO() +{ + if (IoFd < 0) + return; + + close(IoFd); + IoFd = -1; + return; +} + +#endif + +#ifdef __NetBSD__ +/***************************************************************************/ +/* Set TV output mode */ +/***************************************************************************/ +void +xf86SetTVOut(int mode) +{ + switch (xf86Info.consType) + { +#ifdef PCCONS_SUPPORT + case PCCONS:{ + + if (ioctl (xf86Info.consoleFd, CONSOLE_X_TV_ON, &mode) < 0) + { + xf86Msg(X_WARNING, + "xf86SetTVOut: Could not set console to TV output, %s\n", + strerror(errno)); + } + } + break; +#endif /* PCCONS_SUPPORT */ + + default: + FatalError("Xf86SetTVOut: Unsupported console"); + break; + } + return; +} + +void +xf86SetRGBOut() +{ + switch (xf86Info.consType) + { +#ifdef PCCONS_SUPPORT + case PCCONS:{ + + if (ioctl (xf86Info.consoleFd, CONSOLE_X_TV_OFF, 0) < 0) + { + xf86Msg(X_WARNING, + "xf86SetTVOut: Could not set console to RGB output, %s\n", + strerror(errno)); + } + } + break; +#endif /* PCCONS_SUPPORT */ + + default: + FatalError("Xf86SetTVOut: Unsupported console"); + break; + } + return; +} +#endif + +#ifdef HAS_MTRR_SUPPORT +/* memory range (MTRR) support for FreeBSD */ + +/* + * This code is experimental. Some parts may be overkill, and other parts + * may be incomplete. + */ + +/* + * getAllRanges returns the full list of memory ranges with attributes set. + */ + +static struct mem_range_desc * +getAllRanges(int *nmr) +{ + struct mem_range_desc *mrd; + struct mem_range_op mro; + + /* + * Find how many ranges there are. If this fails, then the kernel + * probably doesn't have MTRR support. + */ + mro.mo_arg[0] = 0; + if (ioctl(devMemFd, MEMRANGE_GET, &mro)) + return NULL; + *nmr = mro.mo_arg[0]; + mrd = xnfalloc(*nmr * sizeof(struct mem_range_desc)); + mro.mo_arg[0] = *nmr; + mro.mo_desc = mrd; + if (ioctl(devMemFd, MEMRANGE_GET, &mro)) { + free(mrd); + return NULL; + } + return mrd; +} + +/* + * cleanMTRR removes any memory attribute that may be left by a previous + * X server. Normally there won't be any, but this takes care of the + * case where a server crashed without being able finish cleaning up. + */ + +static Bool +cleanMTRR() +{ + struct mem_range_desc *mrd; + struct mem_range_op mro; + int nmr, i; + + /* This shouldn't happen */ + if (devMemFd < 0) + return FALSE; + + if (!(mrd = getAllRanges(&nmr))) + return FALSE; + + for (i = 0; i < nmr; i++) { + if (strcmp(mrd[i].mr_owner, X_MTRR_ID) == 0 && + (mrd[i].mr_flags & MDF_ACTIVE)) { +#ifdef DEBUG + ErrorF("Clean for (0x%lx,0x%lx)\n", + (unsigned long)mrd[i].mr_base, + (unsigned long)mrd[i].mr_len); +#endif + if (mrd[i].mr_flags & MDF_FIXACTIVE) { + mro.mo_arg[0] = MEMRANGE_SET_UPDATE; + mrd[i].mr_flags = MDF_UNCACHEABLE; + } else { + mro.mo_arg[0] = MEMRANGE_SET_REMOVE; + } + mro.mo_desc = mrd + i; + ioctl(devMemFd, MEMRANGE_SET, &mro); + } + } +#ifdef DEBUG + sleep(10); +#endif + free(mrd); + return TRUE; +} + +typedef struct x_RangeRec { + struct mem_range_desc mrd; + Bool wasWC; + struct x_RangeRec * next; +} RangeRec, *RangePtr; + +static void +freeRangeList(RangePtr range) +{ + RangePtr rp; + + while (range) { + rp = range; + range = rp->next; + free(rp); + } +} + +static RangePtr +dupRangeList(RangePtr list) +{ + RangePtr new = NULL, rp, p; + + rp = list; + while (rp) { + p = xnfalloc(sizeof(RangeRec)); + *p = *rp; + p->next = new; + new = p; + rp = rp->next; + } + return new; +} + +static RangePtr +sortRangeList(RangePtr list) +{ + RangePtr rp1, rp2, copy, sorted = NULL, minp, prev, minprev; + unsigned long minBase; + + /* Sort by base address */ + rp1 = copy = dupRangeList(list); + while (rp1) { + minBase = rp1->mrd.mr_base; + minp = rp1; + minprev = NULL; + prev = rp1; + rp2 = rp1->next; + while (rp2) { + if (rp2->mrd.mr_base < minBase) { + minBase = rp2->mrd.mr_base; + minp = rp2; + minprev = prev; + } + prev = rp2; + rp2 = rp2->next; + } + if (minprev) { + minprev->next = minp->next; + rp1 = copy; + } else { + rp1 = minp->next; + } + minp->next = sorted; + sorted = minp; + } + return sorted; +} + +/* + * findRanges returns a list of ranges that overlap the specified range. + */ + +static void +findRanges(unsigned long base, unsigned long size, RangePtr *ucp, RangePtr *wcp) +{ + struct mem_range_desc *mrd; + int nmr, i; + RangePtr rp, *p; + + if (!(mrd = getAllRanges(&nmr))) + return; + + for (i = 0; i < nmr; i++) { + if ((mrd[i].mr_flags & MDF_ACTIVE) && + mrd[i].mr_base < base + size && + mrd[i].mr_base + mrd[i].mr_len > base) { + if (mrd[i].mr_flags & MDF_WRITECOMBINE) + p = wcp; + else if (mrd[i].mr_flags & MDF_UNCACHEABLE) + p = ucp; + else + continue; + rp = xnfalloc(sizeof(RangeRec)); + rp->mrd = mrd[i]; + rp->next = *p; + *p = rp; + } + } + free(mrd); +} + +/* + * This checks if the existing overlapping ranges fully cover the requested + * range. Is this overkill? + */ + +static Bool +fullCoverage(unsigned long base, unsigned long size, RangePtr overlap) +{ + RangePtr rp1, sorted = NULL; + unsigned long end; + + sorted = sortRangeList(overlap); + /* Look for gaps */ + rp1 = sorted; + end = base + size; + while (rp1) { + if (rp1->mrd.mr_base > base) { + freeRangeList(sorted); + return FALSE; + } else { + base = rp1->mrd.mr_base + rp1->mrd.mr_len; + } + if (base >= end) { + freeRangeList(sorted); + return TRUE; + } + rp1 = rp1->next; + } + freeRangeList(sorted); + return FALSE; +} + +static pointer +addWC(int screenNum, unsigned long base, unsigned long size, MessageType from) +{ + RangePtr uc = NULL, wc = NULL, retlist = NULL; + struct mem_range_desc mrd; + struct mem_range_op mro; + + findRanges(base, size, &uc, &wc); + + /* See of the full range is already WC */ + if (!uc && fullCoverage(base, size, wc)) { + xf86DrvMsg(screenNum, from, + "Write-combining range (0x%lx,0x%lx) was already set\n", + base, size); + return NULL; + } + + /* Otherwise, try to add the new range */ + mrd.mr_base = base; + mrd.mr_len = size; + strcpy(mrd.mr_owner, X_MTRR_ID); + mrd.mr_flags = MDF_WRITECOMBINE; + mro.mo_desc = &mrd; + mro.mo_arg[0] = MEMRANGE_SET_UPDATE; + if (ioctl(devMemFd, MEMRANGE_SET, &mro)) { + xf86DrvMsg(screenNum, X_WARNING, + "Failed to set write-combining range " + "(0x%lx,0x%lx)\n", base, size); + return NULL; + } else { + xf86DrvMsg(screenNum, from, + "Write-combining range (0x%lx,0x%lx)\n", base, size); + retlist = xnfalloc(sizeof(RangeRec)); + retlist->mrd = mrd; + retlist->wasWC = FALSE; + retlist->next = NULL; + return retlist; + } +} + +static pointer +delWC(int screenNum, unsigned long base, unsigned long size, MessageType from) +{ + RangePtr uc = NULL, wc = NULL, retlist = NULL; + struct mem_range_desc mrd; + struct mem_range_op mro; + + findRanges(base, size, &uc, &wc); + + /* + * See of the full range is already not WC, or if there is full + * coverage from UC ranges. + */ + if (!wc || fullCoverage(base, size, uc)) { + xf86DrvMsg(screenNum, from, + "Write-combining range (0x%lx,0x%lx) was already clear\n", + base, size); + return NULL; + } + + /* Otherwise, try to add the new range */ + mrd.mr_base = base; + mrd.mr_len = size; + strcpy(mrd.mr_owner, X_MTRR_ID); + mrd.mr_flags = MDF_UNCACHEABLE; + mro.mo_desc = &mrd; + mro.mo_arg[0] = MEMRANGE_SET_UPDATE; + if (ioctl(devMemFd, MEMRANGE_SET, &mro)) { + xf86DrvMsg(screenNum, X_WARNING, + "Failed to remove write-combining range " + "(0x%lx,0x%lx)\n", base, size); + /* XXX Should then remove all of the overlapping WC ranges */ + return NULL; + } else { + xf86DrvMsg(screenNum, from, + "Removed Write-combining range (0x%lx,0x%lx)\n", + base, size); + retlist = xnfalloc(sizeof(RangeRec)); + retlist->mrd = mrd; + retlist->wasWC = TRUE; + retlist->next = NULL; + return retlist; + } +} + +static pointer +setWC(int screenNum, unsigned long base, unsigned long size, Bool enable, + MessageType from) +{ + if (enable) + return addWC(screenNum, base, size, from); + else + return delWC(screenNum, base, size, from); +} + +static void +undoWC(int screenNum, pointer list) +{ + RangePtr rp; + struct mem_range_op mro; + Bool failed; + + rp = list; + while (rp) { +#ifdef DEBUG + ErrorF("Undo for (0x%lx,0x%lx), %d\n", + (unsigned long)rp->mrd.mr_base, + (unsigned long)rp->mrd.mr_len, rp->wasWC); +#endif + failed = FALSE; + if (rp->wasWC) { + mro.mo_arg[0] = MEMRANGE_SET_UPDATE; + rp->mrd.mr_flags = MDF_WRITECOMBINE; + strcpy(rp->mrd.mr_owner, "unknown"); + } else { + mro.mo_arg[0] = MEMRANGE_SET_REMOVE; + } + mro.mo_desc = &rp->mrd; + + if (ioctl(devMemFd, MEMRANGE_SET, &mro)) { + if (!rp->wasWC) { + mro.mo_arg[0] = MEMRANGE_SET_UPDATE; + rp->mrd.mr_flags = MDF_UNCACHEABLE; + strcpy(rp->mrd.mr_owner, "unknown"); + if (ioctl(devMemFd, MEMRANGE_SET, &mro)) + failed = TRUE; + } else + failed = TRUE; + } + if (failed) { + xf86DrvMsg(screenNum, X_WARNING, + "Failed to restore MTRR range (0x%lx,0x%lx)\n", + (unsigned long)rp->mrd.mr_base, + (unsigned long)rp->mrd.mr_len); + } + rp = rp->next; + } +} + +#endif /* HAS_MTRR_SUPPORT */ + + +#if defined(HAS_MTRR_BUILTIN) && defined(__NetBSD__) +static pointer +NetBSDsetWC(int screenNum, unsigned long base, unsigned long size, Bool enable, + MessageType from) +{ + struct mtrr *mtrrp; + int n; + + xf86DrvMsg(screenNum, X_WARNING, + "%s MTRR %lx - %lx\n", enable ? "set" : "remove", + base, (base + size)); + + mtrrp = xnfalloc(sizeof (struct mtrr)); + mtrrp->base = base; + mtrrp->len = size; + mtrrp->type = MTRR_TYPE_WC; + + /* + * MTRR_PRIVATE will make this MTRR get reset automatically + * if this process exits, so we have no need for an explicit + * cleanup operation when starting a new server. + */ + + if (enable) + mtrrp->flags = MTRR_VALID | MTRR_PRIVATE; + else + mtrrp->flags = 0; + n = 1; + + if (i386_set_mtrr(mtrrp, &n) < 0) { + free(mtrrp); + return NULL; + } + return mtrrp; +} + +static void +NetBSDundoWC(int screenNum, pointer list) +{ + struct mtrr *mtrrp = (struct mtrr *)list; + int n; + + if (mtrrp == NULL) + return; + n = 1; + mtrrp->flags &= ~MTRR_VALID; + i386_set_mtrr(mtrrp, &n); + free(mtrrp); +} +#endif diff --git a/xorg-server/hw/xfree86/os-support/bus/Sbus.c b/xorg-server/hw/xfree86/os-support/bus/Sbus.c index 0b6205f0b..4560ef016 100644 --- a/xorg-server/hw/xfree86/os-support/bus/Sbus.c +++ b/xorg-server/hw/xfree86/os-support/bus/Sbus.c @@ -1,690 +1,690 @@ -/* - * SBUS and OpenPROM access functions. - * - * Copyright (C) 2000 Jakub Jelinek (jakub@redhat.com) - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * JAKUB JELINEK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER - * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -#ifdef HAVE_XORG_CONFIG_H -#include -#endif - -#include -#include -#include -#include -#include -#include -#ifdef sun -#include -#endif -#include "xf86.h" -#include "xf86Priv.h" -#include "xf86_OSlib.h" - -#include "xf86sbusBus.h" -#include "xf86Sbus.h" - -int promRootNode; - -static int promFd = -1; -static int promCurrentNode; -static int promOpenCount = 0; -static int promP1275 = -1; -#define MAX_PROP 128 -#define MAX_VAL (4096-128-4) -static struct openpromio *promOpio; - -sbusDevicePtr *xf86SbusInfo = NULL; - -struct sbus_devtable sbusDeviceTable[] = { - { SBUS_DEVICE_BW2, FBTYPE_SUN2BW, "bwtwo", "sunbw2", "Sun Monochrome (bwtwo)" }, - { SBUS_DEVICE_CG2, FBTYPE_SUN2COLOR, "cgtwo", NULL, "Sun Color2 (cgtwo)" }, - { SBUS_DEVICE_CG3, FBTYPE_SUN3COLOR, "cgthree", "suncg3", "Sun Color3 (cgthree)" }, - { SBUS_DEVICE_CG4, FBTYPE_SUN4COLOR, "cgfour", NULL, "Sun Color4 (cgfour)" }, - { SBUS_DEVICE_CG6, FBTYPE_SUNFAST_COLOR, "cgsix", "suncg6", "Sun GX" }, - { SBUS_DEVICE_CG8, FBTYPE_MEMCOLOR, "cgeight", NULL, "Sun CG8/RasterOps" }, - { SBUS_DEVICE_CG12, FBTYPE_SUNGP3, "cgtwelve", NULL, "Sun GS (cgtwelve)" }, - { SBUS_DEVICE_CG14, FBTYPE_MDICOLOR, "cgfourteen", "suncg14", "Sun SX" }, - { SBUS_DEVICE_GT, FBTYPE_SUNGT, "gt", NULL, "Sun Graphics Tower" }, - { SBUS_DEVICE_MGX, -1, "mgx", NULL, "Quantum 3D MGXplus" }, - { SBUS_DEVICE_LEO, FBTYPE_SUNLEO, "leo", "sunleo", "Sun ZX or Turbo ZX" }, - { SBUS_DEVICE_TCX, FBTYPE_TCXCOLOR, "tcx", "suntcx", "Sun TCX" }, - { SBUS_DEVICE_FFB, FBTYPE_CREATOR, "ffb", "sunffb", "Sun FFB" }, - { SBUS_DEVICE_FFB, FBTYPE_CREATOR, "afb", "sunffb", "Sun Elite3D" }, - { 0, 0, NULL } -}; - -int -promGetSibling(int node) -{ - promOpio->oprom_size = sizeof(int); - - if (node == -1) return 0; - *(int *)promOpio->oprom_array = node; - if (ioctl(promFd, OPROMNEXT, promOpio) < 0) - return 0; - promCurrentNode = *(int *)promOpio->oprom_array; - return *(int *)promOpio->oprom_array; -} - -int -promGetChild(int node) -{ - promOpio->oprom_size = sizeof(int); - - if (!node || node == -1) return 0; - *(int *)promOpio->oprom_array = node; - if (ioctl(promFd, OPROMCHILD, promOpio) < 0) - return 0; - promCurrentNode = *(int *)promOpio->oprom_array; - return *(int *)promOpio->oprom_array; -} - -char * -promGetProperty(const char *prop, int *lenp) -{ - promOpio->oprom_size = MAX_VAL; - - strcpy(promOpio->oprom_array, prop); - if (ioctl(promFd, OPROMGETPROP, promOpio) < 0) - return 0; - if (lenp) *lenp = promOpio->oprom_size; - return promOpio->oprom_array; -} - -int -promGetBool(const char *prop) -{ - promOpio->oprom_size = 0; - - *(int *)promOpio->oprom_array = 0; - for (;;) { - promOpio->oprom_size = MAX_PROP; - if (ioctl(promFd, OPROMNXTPROP, promOpio) < 0) - return 0; - if (!promOpio->oprom_size) - return 0; - if (!strcmp(promOpio->oprom_array, prop)) - return 1; - } -} - -#define PROM_NODE_SIBLING 0x01 -#define PROM_NODE_PREF 0x02 -#define PROM_NODE_SBUS 0x04 -#define PROM_NODE_EBUS 0x08 -#define PROM_NODE_PCI 0x10 - -static int -promSetNode(sbusPromNodePtr pnode) -{ - int node; - - if (!pnode->node || pnode->node == -1) - return -1; - if (pnode->cookie[0] & PROM_NODE_SIBLING) - node = promGetSibling(pnode->cookie[1]); - else - node = promGetChild(pnode->cookie[1]); - if (pnode->node != node) - return -1; - return 0; -} - -static void -promIsP1275(void) -{ -#ifdef linux - FILE *f; - char buffer[1024]; - - if (promP1275 != -1) - return; - promP1275 = 0; - f = fopen("/proc/cpuinfo","r"); - if (!f) return; - while (fgets(buffer, 1024, f) != NULL) - if (!strncmp (buffer, "type", 4) && strstr (buffer, "sun4u")) { - promP1275 = 1; - break; - } - fclose(f); -#elif defined(sun) - struct utsname buffer; - - if ((uname(&buffer) >= 0) && !strcmp(buffer.machine, "sun4u")) - promP1275 = TRUE; - else - promP1275 = FALSE; -#elif defined(__FreeBSD__) - promP1275 = TRUE; -#else -#error Missing promIsP1275() function for this OS -#endif -} - -void -sparcPromClose(void) -{ - if (promOpenCount > 1) { - promOpenCount--; - return; - } - if (promFd != -1) { - close(promFd); - promFd = -1; - } - if (promOpio) { - xfree(promOpio); - promOpio = NULL; - } - promOpenCount = 0; -} - -int -sparcPromInit(void) -{ - if (promOpenCount) { - promOpenCount++; - return 0; - } - promFd = open("/dev/openprom", O_RDONLY, 0); - if (promFd == -1) - return -1; - promOpio = (struct openpromio *)xalloc(4096); - if (!promOpio) { - sparcPromClose(); - return -1; - } - promRootNode = promGetSibling(0); - if (!promRootNode) { - sparcPromClose(); - return -1; - } - promIsP1275(); - promOpenCount++; - - return 0; -} - -char * -sparcPromGetProperty(sbusPromNodePtr pnode, const char *prop, int *lenp) -{ - if (promSetNode(pnode)) - return NULL; - return promGetProperty(prop, lenp); -} - -int -sparcPromGetBool(sbusPromNodePtr pnode, const char *prop) -{ - if (promSetNode(pnode)) - return 0; - return promGetBool(prop); -} - -static char * -promWalkGetDriverName(int node, int oldnode) -{ - int nextnode; - int len; - char *prop; - int devId, i; - - prop = promGetProperty("device_type", &len); - if (prop && (len > 0)) do { - if (!strcmp(prop, "display")) { - prop = promGetProperty("name", &len); - if (!prop || len <= 0) - break; - while ((*prop >= 'A' && *prop <= 'Z') || *prop == ',') - prop++; - for (i = 0; sbusDeviceTable[i].devId; i++) - if (!strcmp(prop, sbusDeviceTable[i].promName)) - break; - devId = sbusDeviceTable[i].devId; - if (!devId) - break; - if (sbusDeviceTable[i].driverName) - return sbusDeviceTable[i].driverName; - } - } while (0); - - nextnode = promGetChild(node); - if (nextnode) { - char *name; - name = promWalkGetDriverName(nextnode, node); - if (name) - return name; - } - - nextnode = promGetSibling(node); - if (nextnode) - return promWalkGetDriverName(nextnode, node); - return NULL; -} - -char * -sparcDriverName(void) -{ - char *name; - - if (sparcPromInit() < 0) - return NULL; - promGetSibling(0); - name = promWalkGetDriverName(promRootNode, 0); - sparcPromClose(); - return name; -} - -static void -promWalkAssignNodes(int node, int oldnode, int flags, sbusDevicePtr *devicePtrs) -{ - int nextnode; - int len, sbus = flags & PROM_NODE_SBUS; - char *prop; - int devId, i, j; - sbusPromNode pNode, pNode2; - - prop = promGetProperty("device_type", &len); - if (prop && (len > 0)) do { - if (!strcmp(prop, "display")) { - prop = promGetProperty("name", &len); - if (!prop || len <= 0) - break; - while ((*prop >= 'A' && *prop <= 'Z') || *prop == ',') - prop++; - for (i = 0; sbusDeviceTable[i].devId; i++) - if (!strcmp(prop, sbusDeviceTable[i].promName)) - break; - devId = sbusDeviceTable[i].devId; - if (!devId) - break; - if (!sbus) { - if (devId == SBUS_DEVICE_FFB) { - /* - * All /SUNW,ffb outside of SBUS tree come before all - * /SUNW,afb outside of SBUS tree in Linux. - */ - if (!strcmp(prop, "afb")) - flags |= PROM_NODE_PREF; - } else if (devId != SBUS_DEVICE_CG14) - break; - } - for (i = 0; i < 32; i++) { - if (!devicePtrs[i] || devicePtrs[i]->devId != devId) - continue; - if (devicePtrs[i]->node.node) { - if ((devicePtrs[i]->node.cookie[0] & ~PROM_NODE_SIBLING) <= - (flags & ~PROM_NODE_SIBLING)) - continue; - for (j = i + 1, pNode = devicePtrs[i]->node; j < 32; j++) { - if (!devicePtrs[j] || devicePtrs[j]->devId != devId) - continue; - pNode2 = devicePtrs[j]->node; - devicePtrs[j]->node = pNode; - pNode = pNode2; - } - } - devicePtrs[i]->node.node = node; - devicePtrs[i]->node.cookie[0] = flags; - devicePtrs[i]->node.cookie[1] = oldnode; - break; - } - break; - } - } while (0); - - prop = promGetProperty("name", &len); - if (prop && len > 0) { - if (!strcmp(prop, "sbus") || !strcmp(prop, "sbi")) - sbus = PROM_NODE_SBUS; - } - - nextnode = promGetChild(node); - if (nextnode) - promWalkAssignNodes(nextnode, node, sbus, devicePtrs); - - nextnode = promGetSibling(node); - if (nextnode) - promWalkAssignNodes(nextnode, node, PROM_NODE_SIBLING | sbus, devicePtrs); -} - -void -sparcPromAssignNodes(void) -{ - sbusDevicePtr psdp, *psdpp; - int n, holes = 0, i, j; - FILE *f; - sbusDevicePtr devicePtrs[32]; - - memset(devicePtrs, 0, sizeof(devicePtrs)); - for (psdpp = xf86SbusInfo, n = 0; (psdp = *psdpp); psdpp++, n++) { - if (psdp->fbNum != n) - holes = 1; - devicePtrs[psdp->fbNum] = psdp; - } - if (holes && (f = fopen("/proc/fb", "r")) != NULL) { - /* We could not open one of fb devices, check /proc/fb to see what - * were the types of the cards missed. */ - char buffer[64]; - int fbNum, devId; - static struct { - int devId; - char *prefix; - } procFbPrefixes[] = { - { SBUS_DEVICE_BW2, "BWtwo" }, - { SBUS_DEVICE_CG14, "CGfourteen" }, - { SBUS_DEVICE_CG6, "CGsix" }, - { SBUS_DEVICE_CG3, "CGthree" }, - { SBUS_DEVICE_FFB, "Creator" }, - { SBUS_DEVICE_FFB, "Elite 3D" }, - { SBUS_DEVICE_LEO, "Leo" }, - { SBUS_DEVICE_TCX, "TCX" }, - { 0, NULL }, - }; - - while (fscanf(f, "%d %63s\n", &fbNum, buffer) == 2) { - for (i = 0; procFbPrefixes[i].devId; i++) - if (! strncmp(procFbPrefixes[i].prefix, buffer, - strlen(procFbPrefixes[i].prefix))) - break; - devId = procFbPrefixes[i].devId; - if (! devId) continue; - if (devicePtrs[fbNum]) { - if (devicePtrs[fbNum]->devId != devId) - xf86ErrorF("Inconsistent /proc/fb with FBIOGATTR\n"); - } else if (!devicePtrs[fbNum]) { - devicePtrs[fbNum] = psdp = xnfcalloc(sizeof (sbusDevice), 1); - psdp->devId = devId; - psdp->fbNum = fbNum; - psdp->fd = -2; - } - } - fclose(f); - } - promGetSibling(0); - promWalkAssignNodes(promRootNode, 0, PROM_NODE_PREF, devicePtrs); - for (i = 0, j = 0; i < 32; i++) - if (devicePtrs[i] && devicePtrs[i]->fbNum == -1) - j++; - xf86SbusInfo = xnfrealloc(xf86SbusInfo, sizeof(psdp) * (n + j + 1)); - for (i = 0, psdpp = xf86SbusInfo; i < 32; i++) - if (devicePtrs[i]) { - if (devicePtrs[i]->fbNum == -1) { - memmove(psdpp + 1, psdpp, sizeof(psdpp) * (n + 1)); - *psdpp = devicePtrs[i]; - } else - n--; - } -} - -static char * -promGetReg(int type) -{ - char *prop; - int len; - static char regstr[40]; - - regstr[0] = 0; - prop = promGetProperty("reg", &len); - if (prop && len >= 4) { - unsigned int *reg = (unsigned int *)prop; - if (!promP1275 || (type == PROM_NODE_SBUS) || (type == PROM_NODE_EBUS)) - sprintf (regstr, "@%x,%x", reg[0], reg[1]); - else if (type == PROM_NODE_PCI) { - if ((reg[0] >> 8) & 7) - sprintf (regstr, "@%x,%x", (reg[0] >> 11) & 0x1f, (reg[0] >> 8) & 7); - else - sprintf (regstr, "@%x", (reg[0] >> 11) & 0x1f); - } else if (len == 4) - sprintf (regstr, "@%x", reg[0]); - else { - unsigned int regs[2]; - - /* Things get more complicated on UPA. If upa-portid exists, - then address is @upa-portid,second-int-in-reg, otherwise - it is @first-int-in-reg/16,second-int-in-reg (well, probably - upa-portid always exists, but just to be safe). */ - memcpy (regs, reg, sizeof(regs)); - prop = promGetProperty("upa-portid", &len); - if (prop && len == 4) { - reg = (unsigned int *)prop; - sprintf (regstr, "@%x,%x", reg[0], regs[1]); - } else - sprintf (regstr, "@%x,%x", regs[0] >> 4, regs[1]); - } - } - return regstr; -} - -static int -promWalkNode2Pathname(char *path, int parent, int node, int searchNode, int type) -{ - int nextnode; - int len, ntype = type; - char *prop, *p; - - prop = promGetProperty("name", &len); - *path = '/'; - if (!prop || len <= 0) - return 0; - if ((!strcmp(prop, "sbus") || !strcmp(prop, "sbi")) && !type) - ntype = PROM_NODE_SBUS; - else if (!strcmp(prop, "ebus") && type == PROM_NODE_PCI) - ntype = PROM_NODE_EBUS; - else if (!strcmp(prop, "pci") && !type) - ntype = PROM_NODE_PCI; - strcpy (path + 1, prop); - p = promGetReg(type); - if (*p) - strcat (path, p); - if (node == searchNode) - return 1; - nextnode = promGetChild(node); - if (nextnode && - promWalkNode2Pathname(strchr(path, 0), node, nextnode, searchNode, ntype)) - return 1; - nextnode = promGetSibling(node); - if (nextnode && - promWalkNode2Pathname(path, parent, nextnode, searchNode, type)) - return 1; - return 0; -} - -char * -sparcPromNode2Pathname(sbusPromNodePtr pnode) -{ - char *ret; - - if (!pnode->node) return NULL; - ret = xalloc(4096); - if (!ret) return NULL; - if (promWalkNode2Pathname(ret, promRootNode, promGetChild(promRootNode), pnode->node, 0)) - return ret; - xfree(ret); - return NULL; -} - -static int -promWalkPathname2Node(char *name, char *regstr, int parent, int type) -{ - int len, node, ret; - char *prop, *p; - - for (;;) { - prop = promGetProperty("name", &len); - if (!prop || len <= 0) - return 0; - if ((!strcmp(prop, "sbus") || !strcmp(prop, "sbi")) && !type) - type = PROM_NODE_SBUS; - else if (!strcmp(prop, "ebus") && type == PROM_NODE_PCI) - type = PROM_NODE_EBUS; - else if (!strcmp(prop, "pci") && !type) - type = PROM_NODE_PCI; - for (node = promGetChild(parent); node; node = promGetSibling(node)) { - prop = promGetProperty("name", &len); - if (!prop || len <= 0) - continue; - if (*name && strcmp(name, prop)) - continue; - if (*regstr) { - p = promGetReg(type); - if (! *p || strcmp(p + 1, regstr)) - continue; - } - break; - } - if (!node) { - for (node = promGetChild(parent); node; node = promGetSibling(node)) { - ret = promWalkPathname2Node(name, regstr, node, type); - if (ret) return ret; - } - return 0; - } - name = strchr(regstr, 0) + 1; - if (! *name) - return node; - p = strchr(name, '/'); - if (p) - *p = 0; - else - p = strchr(name, 0); - regstr = strchr(name, '@'); - if (regstr) - *regstr++ = 0; - else - regstr = p; - if (name == regstr) - return 0; - parent = node; - } -} - -int -sparcPromPathname2Node(const char *pathName) -{ - int i; - char *name, *regstr, *p; - - i = strlen(pathName); - name = xalloc(i + 2); - if (! name) return 0; - strcpy (name, pathName); - name [i + 1] = 0; - if (name[0] != '/') - return 0; - p = strchr(name + 1, '/'); - if (p) - *p = 0; - else - p = strchr(name, 0); - regstr = strchr(name, '@'); - if (regstr) - *regstr++ = 0; - else - regstr = p; - if (name + 1 == regstr) - return 0; - promGetSibling(0); - i = promWalkPathname2Node(name + 1, regstr, promRootNode, 0); - xfree(name); - return i; -} - -pointer -xf86MapSbusMem(sbusDevicePtr psdp, unsigned long offset, unsigned long size) -{ - pointer ret; - unsigned long pagemask = getpagesize() - 1; - unsigned long off = offset & ~pagemask; - unsigned long len = ((offset + size + pagemask) & ~pagemask) - off; - - if (psdp->fd == -1) { - psdp->fd = open(psdp->device, O_RDWR); - if (psdp->fd == -1) - return NULL; - } else if (psdp->fd < 0) - return NULL; - - ret = (pointer) mmap (NULL, len, PROT_READ | PROT_WRITE, MAP_PRIVATE, - psdp->fd, off); - if (ret == (pointer) -1) { - ret = (pointer) mmap (NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED, - psdp->fd, off); - } - if (ret == (pointer) -1) - return NULL; - - return (char *)ret + (offset - off); -} - -void -xf86UnmapSbusMem(sbusDevicePtr psdp, pointer addr, unsigned long size) -{ - unsigned long mask = getpagesize() - 1; - unsigned long base = (unsigned long)addr & ~mask; - unsigned long len = (((unsigned long)addr + size + mask) & ~mask) - base; - - munmap ((pointer)base, len); -} - -/* Tell OS that we are driving the HW cursor ourselves. */ -void -xf86SbusHideOsHwCursor(sbusDevicePtr psdp) -{ - struct fbcursor fbcursor; - unsigned char zeros[8]; - - memset(&fbcursor, 0, sizeof(fbcursor)); - memset(&zeros, 0, sizeof(zeros)); - fbcursor.cmap.count = 2; - fbcursor.cmap.red = zeros; - fbcursor.cmap.green = zeros; - fbcursor.cmap.blue = zeros; - fbcursor.image = (char *)zeros; - fbcursor.mask = (char *)zeros; - fbcursor.size.x = 32; - fbcursor.size.y = 1; - fbcursor.set = FB_CUR_SETALL; - ioctl(psdp->fd, FBIOSCURSOR, &fbcursor); -} - -/* Set HW cursor colormap. */ -void -xf86SbusSetOsHwCursorCmap(sbusDevicePtr psdp, int bg, int fg) -{ - struct fbcursor fbcursor; - unsigned char red[2], green[2], blue[2]; - - memset(&fbcursor, 0, sizeof(fbcursor)); - red[0] = bg >> 16; - green[0] = bg >> 8; - blue[0] = bg; - red[1] = fg >> 16; - green[1] = fg >> 8; - blue[1] = fg; - fbcursor.cmap.count = 2; - fbcursor.cmap.red = red; - fbcursor.cmap.green = green; - fbcursor.cmap.blue = blue; - fbcursor.set = FB_CUR_SETCMAP; - ioctl(psdp->fd, FBIOSCURSOR, &fbcursor); -} +/* + * SBUS and OpenPROM access functions. + * + * Copyright (C) 2000 Jakub Jelinek (jakub@redhat.com) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * JAKUB JELINEK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER + * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifdef HAVE_XORG_CONFIG_H +#include +#endif + +#include +#include +#include +#include +#include +#include +#ifdef sun +#include +#endif +#include "xf86.h" +#include "xf86Priv.h" +#include "xf86_OSlib.h" + +#include "xf86sbusBus.h" +#include "xf86Sbus.h" + +int promRootNode; + +static int promFd = -1; +static int promCurrentNode; +static int promOpenCount = 0; +static int promP1275 = -1; +#define MAX_PROP 128 +#define MAX_VAL (4096-128-4) +static struct openpromio *promOpio; + +sbusDevicePtr *xf86SbusInfo = NULL; + +struct sbus_devtable sbusDeviceTable[] = { + { SBUS_DEVICE_BW2, FBTYPE_SUN2BW, "bwtwo", "sunbw2", "Sun Monochrome (bwtwo)" }, + { SBUS_DEVICE_CG2, FBTYPE_SUN2COLOR, "cgtwo", NULL, "Sun Color2 (cgtwo)" }, + { SBUS_DEVICE_CG3, FBTYPE_SUN3COLOR, "cgthree", "suncg3", "Sun Color3 (cgthree)" }, + { SBUS_DEVICE_CG4, FBTYPE_SUN4COLOR, "cgfour", NULL, "Sun Color4 (cgfour)" }, + { SBUS_DEVICE_CG6, FBTYPE_SUNFAST_COLOR, "cgsix", "suncg6", "Sun GX" }, + { SBUS_DEVICE_CG8, FBTYPE_MEMCOLOR, "cgeight", NULL, "Sun CG8/RasterOps" }, + { SBUS_DEVICE_CG12, FBTYPE_SUNGP3, "cgtwelve", NULL, "Sun GS (cgtwelve)" }, + { SBUS_DEVICE_CG14, FBTYPE_MDICOLOR, "cgfourteen", "suncg14", "Sun SX" }, + { SBUS_DEVICE_GT, FBTYPE_SUNGT, "gt", NULL, "Sun Graphics Tower" }, + { SBUS_DEVICE_MGX, -1, "mgx", NULL, "Quantum 3D MGXplus" }, + { SBUS_DEVICE_LEO, FBTYPE_SUNLEO, "leo", "sunleo", "Sun ZX or Turbo ZX" }, + { SBUS_DEVICE_TCX, FBTYPE_TCXCOLOR, "tcx", "suntcx", "Sun TCX" }, + { SBUS_DEVICE_FFB, FBTYPE_CREATOR, "ffb", "sunffb", "Sun FFB" }, + { SBUS_DEVICE_FFB, FBTYPE_CREATOR, "afb", "sunffb", "Sun Elite3D" }, + { 0, 0, NULL } +}; + +int +promGetSibling(int node) +{ + promOpio->oprom_size = sizeof(int); + + if (node == -1) return 0; + *(int *)promOpio->oprom_array = node; + if (ioctl(promFd, OPROMNEXT, promOpio) < 0) + return 0; + promCurrentNode = *(int *)promOpio->oprom_array; + return *(int *)promOpio->oprom_array; +} + +int +promGetChild(int node) +{ + promOpio->oprom_size = sizeof(int); + + if (!node || node == -1) return 0; + *(int *)promOpio->oprom_array = node; + if (ioctl(promFd, OPROMCHILD, promOpio) < 0) + return 0; + promCurrentNode = *(int *)promOpio->oprom_array; + return *(int *)promOpio->oprom_array; +} + +char * +promGetProperty(const char *prop, int *lenp) +{ + promOpio->oprom_size = MAX_VAL; + + strcpy(promOpio->oprom_array, prop); + if (ioctl(promFd, OPROMGETPROP, promOpio) < 0) + return 0; + if (lenp) *lenp = promOpio->oprom_size; + return promOpio->oprom_array; +} + +int +promGetBool(const char *prop) +{ + promOpio->oprom_size = 0; + + *(int *)promOpio->oprom_array = 0; + for (;;) { + promOpio->oprom_size = MAX_PROP; + if (ioctl(promFd, OPROMNXTPROP, promOpio) < 0) + return 0; + if (!promOpio->oprom_size) + return 0; + if (!strcmp(promOpio->oprom_array, prop)) + return 1; + } +} + +#define PROM_NODE_SIBLING 0x01 +#define PROM_NODE_PREF 0x02 +#define PROM_NODE_SBUS 0x04 +#define PROM_NODE_EBUS 0x08 +#define PROM_NODE_PCI 0x10 + +static int +promSetNode(sbusPromNodePtr pnode) +{ + int node; + + if (!pnode->node || pnode->node == -1) + return -1; + if (pnode->cookie[0] & PROM_NODE_SIBLING) + node = promGetSibling(pnode->cookie[1]); + else + node = promGetChild(pnode->cookie[1]); + if (pnode->node != node) + return -1; + return 0; +} + +static void +promIsP1275(void) +{ +#ifdef linux + FILE *f; + char buffer[1024]; + + if (promP1275 != -1) + return; + promP1275 = 0; + f = fopen("/proc/cpuinfo","r"); + if (!f) return; + while (fgets(buffer, 1024, f) != NULL) + if (!strncmp (buffer, "type", 4) && strstr (buffer, "sun4u")) { + promP1275 = 1; + break; + } + fclose(f); +#elif defined(sun) + struct utsname buffer; + + if ((uname(&buffer) >= 0) && !strcmp(buffer.machine, "sun4u")) + promP1275 = TRUE; + else + promP1275 = FALSE; +#elif defined(__FreeBSD__) + promP1275 = TRUE; +#else +#error Missing promIsP1275() function for this OS +#endif +} + +void +sparcPromClose(void) +{ + if (promOpenCount > 1) { + promOpenCount--; + return; + } + if (promFd != -1) { + close(promFd); + promFd = -1; + } + if (promOpio) { + free(promOpio); + promOpio = NULL; + } + promOpenCount = 0; +} + +int +sparcPromInit(void) +{ + if (promOpenCount) { + promOpenCount++; + return 0; + } + promFd = open("/dev/openprom", O_RDONLY, 0); + if (promFd == -1) + return -1; + promOpio = (struct openpromio *)malloc(4096); + if (!promOpio) { + sparcPromClose(); + return -1; + } + promRootNode = promGetSibling(0); + if (!promRootNode) { + sparcPromClose(); + return -1; + } + promIsP1275(); + promOpenCount++; + + return 0; +} + +char * +sparcPromGetProperty(sbusPromNodePtr pnode, const char *prop, int *lenp) +{ + if (promSetNode(pnode)) + return NULL; + return promGetProperty(prop, lenp); +} + +int +sparcPromGetBool(sbusPromNodePtr pnode, const char *prop) +{ + if (promSetNode(pnode)) + return 0; + return promGetBool(prop); +} + +static char * +promWalkGetDriverName(int node, int oldnode) +{ + int nextnode; + int len; + char *prop; + int devId, i; + + prop = promGetProperty("device_type", &len); + if (prop && (len > 0)) do { + if (!strcmp(prop, "display")) { + prop = promGetProperty("name", &len); + if (!prop || len <= 0) + break; + while ((*prop >= 'A' && *prop <= 'Z') || *prop == ',') + prop++; + for (i = 0; sbusDeviceTable[i].devId; i++) + if (!strcmp(prop, sbusDeviceTable[i].promName)) + break; + devId = sbusDeviceTable[i].devId; + if (!devId) + break; + if (sbusDeviceTable[i].driverName) + return sbusDeviceTable[i].driverName; + } + } while (0); + + nextnode = promGetChild(node); + if (nextnode) { + char *name; + name = promWalkGetDriverName(nextnode, node); + if (name) + return name; + } + + nextnode = promGetSibling(node); + if (nextnode) + return promWalkGetDriverName(nextnode, node); + return NULL; +} + +char * +sparcDriverName(void) +{ + char *name; + + if (sparcPromInit() < 0) + return NULL; + promGetSibling(0); + name = promWalkGetDriverName(promRootNode, 0); + sparcPromClose(); + return name; +} + +static void +promWalkAssignNodes(int node, int oldnode, int flags, sbusDevicePtr *devicePtrs) +{ + int nextnode; + int len, sbus = flags & PROM_NODE_SBUS; + char *prop; + int devId, i, j; + sbusPromNode pNode, pNode2; + + prop = promGetProperty("device_type", &len); + if (prop && (len > 0)) do { + if (!strcmp(prop, "display")) { + prop = promGetProperty("name", &len); + if (!prop || len <= 0) + break; + while ((*prop >= 'A' && *prop <= 'Z') || *prop == ',') + prop++; + for (i = 0; sbusDeviceTable[i].devId; i++) + if (!strcmp(prop, sbusDeviceTable[i].promName)) + break; + devId = sbusDeviceTable[i].devId; + if (!devId) + break; + if (!sbus) { + if (devId == SBUS_DEVICE_FFB) { + /* + * All /SUNW,ffb outside of SBUS tree come before all + * /SUNW,afb outside of SBUS tree in Linux. + */ + if (!strcmp(prop, "afb")) + flags |= PROM_NODE_PREF; + } else if (devId != SBUS_DEVICE_CG14) + break; + } + for (i = 0; i < 32; i++) { + if (!devicePtrs[i] || devicePtrs[i]->devId != devId) + continue; + if (devicePtrs[i]->node.node) { + if ((devicePtrs[i]->node.cookie[0] & ~PROM_NODE_SIBLING) <= + (flags & ~PROM_NODE_SIBLING)) + continue; + for (j = i + 1, pNode = devicePtrs[i]->node; j < 32; j++) { + if (!devicePtrs[j] || devicePtrs[j]->devId != devId) + continue; + pNode2 = devicePtrs[j]->node; + devicePtrs[j]->node = pNode; + pNode = pNode2; + } + } + devicePtrs[i]->node.node = node; + devicePtrs[i]->node.cookie[0] = flags; + devicePtrs[i]->node.cookie[1] = oldnode; + break; + } + break; + } + } while (0); + + prop = promGetProperty("name", &len); + if (prop && len > 0) { + if (!strcmp(prop, "sbus") || !strcmp(prop, "sbi")) + sbus = PROM_NODE_SBUS; + } + + nextnode = promGetChild(node); + if (nextnode) + promWalkAssignNodes(nextnode, node, sbus, devicePtrs); + + nextnode = promGetSibling(node); + if (nextnode) + promWalkAssignNodes(nextnode, node, PROM_NODE_SIBLING | sbus, devicePtrs); +} + +void +sparcPromAssignNodes(void) +{ + sbusDevicePtr psdp, *psdpp; + int n, holes = 0, i, j; + FILE *f; + sbusDevicePtr devicePtrs[32]; + + memset(devicePtrs, 0, sizeof(devicePtrs)); + for (psdpp = xf86SbusInfo, n = 0; (psdp = *psdpp); psdpp++, n++) { + if (psdp->fbNum != n) + holes = 1; + devicePtrs[psdp->fbNum] = psdp; + } + if (holes && (f = fopen("/proc/fb", "r")) != NULL) { + /* We could not open one of fb devices, check /proc/fb to see what + * were the types of the cards missed. */ + char buffer[64]; + int fbNum, devId; + static struct { + int devId; + char *prefix; + } procFbPrefixes[] = { + { SBUS_DEVICE_BW2, "BWtwo" }, + { SBUS_DEVICE_CG14, "CGfourteen" }, + { SBUS_DEVICE_CG6, "CGsix" }, + { SBUS_DEVICE_CG3, "CGthree" }, + { SBUS_DEVICE_FFB, "Creator" }, + { SBUS_DEVICE_FFB, "Elite 3D" }, + { SBUS_DEVICE_LEO, "Leo" }, + { SBUS_DEVICE_TCX, "TCX" }, + { 0, NULL }, + }; + + while (fscanf(f, "%d %63s\n", &fbNum, buffer) == 2) { + for (i = 0; procFbPrefixes[i].devId; i++) + if (! strncmp(procFbPrefixes[i].prefix, buffer, + strlen(procFbPrefixes[i].prefix))) + break; + devId = procFbPrefixes[i].devId; + if (! devId) continue; + if (devicePtrs[fbNum]) { + if (devicePtrs[fbNum]->devId != devId) + xf86ErrorF("Inconsistent /proc/fb with FBIOGATTR\n"); + } else if (!devicePtrs[fbNum]) { + devicePtrs[fbNum] = psdp = xnfcalloc(sizeof (sbusDevice), 1); + psdp->devId = devId; + psdp->fbNum = fbNum; + psdp->fd = -2; + } + } + fclose(f); + } + promGetSibling(0); + promWalkAssignNodes(promRootNode, 0, PROM_NODE_PREF, devicePtrs); + for (i = 0, j = 0; i < 32; i++) + if (devicePtrs[i] && devicePtrs[i]->fbNum == -1) + j++; + xf86SbusInfo = xnfrealloc(xf86SbusInfo, sizeof(psdp) * (n + j + 1)); + for (i = 0, psdpp = xf86SbusInfo; i < 32; i++) + if (devicePtrs[i]) { + if (devicePtrs[i]->fbNum == -1) { + memmove(psdpp + 1, psdpp, sizeof(psdpp) * (n + 1)); + *psdpp = devicePtrs[i]; + } else + n--; + } +} + +static char * +promGetReg(int type) +{ + char *prop; + int len; + static char regstr[40]; + + regstr[0] = 0; + prop = promGetProperty("reg", &len); + if (prop && len >= 4) { + unsigned int *reg = (unsigned int *)prop; + if (!promP1275 || (type == PROM_NODE_SBUS) || (type == PROM_NODE_EBUS)) + sprintf (regstr, "@%x,%x", reg[0], reg[1]); + else if (type == PROM_NODE_PCI) { + if ((reg[0] >> 8) & 7) + sprintf (regstr, "@%x,%x", (reg[0] >> 11) & 0x1f, (reg[0] >> 8) & 7); + else + sprintf (regstr, "@%x", (reg[0] >> 11) & 0x1f); + } else if (len == 4) + sprintf (regstr, "@%x", reg[0]); + else { + unsigned int regs[2]; + + /* Things get more complicated on UPA. If upa-portid exists, + then address is @upa-portid,second-int-in-reg, otherwise + it is @first-int-in-reg/16,second-int-in-reg (well, probably + upa-portid always exists, but just to be safe). */ + memcpy (regs, reg, sizeof(regs)); + prop = promGetProperty("upa-portid", &len); + if (prop && len == 4) { + reg = (unsigned int *)prop; + sprintf (regstr, "@%x,%x", reg[0], regs[1]); + } else + sprintf (regstr, "@%x,%x", regs[0] >> 4, regs[1]); + } + } + return regstr; +} + +static int +promWalkNode2Pathname(char *path, int parent, int node, int searchNode, int type) +{ + int nextnode; + int len, ntype = type; + char *prop, *p; + + prop = promGetProperty("name", &len); + *path = '/'; + if (!prop || len <= 0) + return 0; + if ((!strcmp(prop, "sbus") || !strcmp(prop, "sbi")) && !type) + ntype = PROM_NODE_SBUS; + else if (!strcmp(prop, "ebus") && type == PROM_NODE_PCI) + ntype = PROM_NODE_EBUS; + else if (!strcmp(prop, "pci") && !type) + ntype = PROM_NODE_PCI; + strcpy (path + 1, prop); + p = promGetReg(type); + if (*p) + strcat (path, p); + if (node == searchNode) + return 1; + nextnode = promGetChild(node); + if (nextnode && + promWalkNode2Pathname(strchr(path, 0), node, nextnode, searchNode, ntype)) + return 1; + nextnode = promGetSibling(node); + if (nextnode && + promWalkNode2Pathname(path, parent, nextnode, searchNode, type)) + return 1; + return 0; +} + +char * +sparcPromNode2Pathname(sbusPromNodePtr pnode) +{ + char *ret; + + if (!pnode->node) return NULL; + ret = malloc(4096); + if (!ret) return NULL; + if (promWalkNode2Pathname(ret, promRootNode, promGetChild(promRootNode), pnode->node, 0)) + return ret; + free(ret); + return NULL; +} + +static int +promWalkPathname2Node(char *name, char *regstr, int parent, int type) +{ + int len, node, ret; + char *prop, *p; + + for (;;) { + prop = promGetProperty("name", &len); + if (!prop || len <= 0) + return 0; + if ((!strcmp(prop, "sbus") || !strcmp(prop, "sbi")) && !type) + type = PROM_NODE_SBUS; + else if (!strcmp(prop, "ebus") && type == PROM_NODE_PCI) + type = PROM_NODE_EBUS; + else if (!strcmp(prop, "pci") && !type) + type = PROM_NODE_PCI; + for (node = promGetChild(parent); node; node = promGetSibling(node)) { + prop = promGetProperty("name", &len); + if (!prop || len <= 0) + continue; + if (*name && strcmp(name, prop)) + continue; + if (*regstr) { + p = promGetReg(type); + if (! *p || strcmp(p + 1, regstr)) + continue; + } + break; + } + if (!node) { + for (node = promGetChild(parent); node; node = promGetSibling(node)) { + ret = promWalkPathname2Node(name, regstr, node, type); + if (ret) return ret; + } + return 0; + } + name = strchr(regstr, 0) + 1; + if (! *name) + return node; + p = strchr(name, '/'); + if (p) + *p = 0; + else + p = strchr(name, 0); + regstr = strchr(name, '@'); + if (regstr) + *regstr++ = 0; + else + regstr = p; + if (name == regstr) + return 0; + parent = node; + } +} + +int +sparcPromPathname2Node(const char *pathName) +{ + int i; + char *name, *regstr, *p; + + i = strlen(pathName); + name = malloc(i + 2); + if (! name) return 0; + strcpy (name, pathName); + name [i + 1] = 0; + if (name[0] != '/') + return 0; + p = strchr(name + 1, '/'); + if (p) + *p = 0; + else + p = strchr(name, 0); + regstr = strchr(name, '@'); + if (regstr) + *regstr++ = 0; + else + regstr = p; + if (name + 1 == regstr) + return 0; + promGetSibling(0); + i = promWalkPathname2Node(name + 1, regstr, promRootNode, 0); + free(name); + return i; +} + +pointer +xf86MapSbusMem(sbusDevicePtr psdp, unsigned long offset, unsigned long size) +{ + pointer ret; + unsigned long pagemask = getpagesize() - 1; + unsigned long off = offset & ~pagemask; + unsigned long len = ((offset + size + pagemask) & ~pagemask) - off; + + if (psdp->fd == -1) { + psdp->fd = open(psdp->device, O_RDWR); + if (psdp->fd == -1) + return NULL; + } else if (psdp->fd < 0) + return NULL; + + ret = (pointer) mmap (NULL, len, PROT_READ | PROT_WRITE, MAP_PRIVATE, + psdp->fd, off); + if (ret == (pointer) -1) { + ret = (pointer) mmap (NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED, + psdp->fd, off); + } + if (ret == (pointer) -1) + return NULL; + + return (char *)ret + (offset - off); +} + +void +xf86UnmapSbusMem(sbusDevicePtr psdp, pointer addr, unsigned long size) +{ + unsigned long mask = getpagesize() - 1; + unsigned long base = (unsigned long)addr & ~mask; + unsigned long len = (((unsigned long)addr + size + mask) & ~mask) - base; + + munmap ((pointer)base, len); +} + +/* Tell OS that we are driving the HW cursor ourselves. */ +void +xf86SbusHideOsHwCursor(sbusDevicePtr psdp) +{ + struct fbcursor fbcursor; + unsigned char zeros[8]; + + memset(&fbcursor, 0, sizeof(fbcursor)); + memset(&zeros, 0, sizeof(zeros)); + fbcursor.cmap.count = 2; + fbcursor.cmap.red = zeros; + fbcursor.cmap.green = zeros; + fbcursor.cmap.blue = zeros; + fbcursor.image = (char *)zeros; + fbcursor.mask = (char *)zeros; + fbcursor.size.x = 32; + fbcursor.size.y = 1; + fbcursor.set = FB_CUR_SETALL; + ioctl(psdp->fd, FBIOSCURSOR, &fbcursor); +} + +/* Set HW cursor colormap. */ +void +xf86SbusSetOsHwCursorCmap(sbusDevicePtr psdp, int bg, int fg) +{ + struct fbcursor fbcursor; + unsigned char red[2], green[2], blue[2]; + + memset(&fbcursor, 0, sizeof(fbcursor)); + red[0] = bg >> 16; + green[0] = bg >> 8; + blue[0] = bg; + red[1] = fg >> 16; + green[1] = fg >> 8; + blue[1] = fg; + fbcursor.cmap.count = 2; + fbcursor.cmap.red = red; + fbcursor.cmap.green = green; + fbcursor.cmap.blue = blue; + fbcursor.set = FB_CUR_SETCMAP; + ioctl(psdp->fd, FBIOSCURSOR, &fbcursor); +} diff --git a/xorg-server/hw/xfree86/os-support/linux/int10/linux.c b/xorg-server/hw/xfree86/os-support/linux/int10/linux.c index 0cf3507c3..e3c8a984d 100644 --- a/xorg-server/hw/xfree86/os-support/linux/int10/linux.c +++ b/xorg-server/hw/xfree86/os-support/linux/int10/linux.c @@ -1,544 +1,544 @@ -/* - * linux specific part of the int10 module - * Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2008 Egbert Eich - */ -#ifdef HAVE_XORG_CONFIG_H -#include -#endif - -#include "xf86.h" -#include "xf86_OSproc.h" -#include "xf86Pci.h" -#include "compiler.h" -#define _INT10_PRIVATE -#include "xf86int10.h" -#ifdef __sparc__ -#define DEV_MEM "/dev/fb" -#else -#define DEV_MEM "/dev/mem" -#endif -#define ALLOC_ENTRIES(x) ((V_RAM / x) - 1) -#define SHMERRORPTR (pointer)(-1) - -#include -#include -#include -#include -#include -#include -#include - -static int counter = 0; -static unsigned long int10Generation = 0; - -static CARD8 read_b(xf86Int10InfoPtr pInt, int addr); -static CARD16 read_w(xf86Int10InfoPtr pInt, int addr); -static CARD32 read_l(xf86Int10InfoPtr pInt, int addr); -static void write_b(xf86Int10InfoPtr pInt, int addr, CARD8 val); -static void write_w(xf86Int10InfoPtr pInt, int addr, CARD16 val); -static void write_l(xf86Int10InfoPtr pInt, int addr, CARD32 val); - -int10MemRec linuxMem = { - read_b, - read_w, - read_l, - write_b, - write_w, - write_l -}; - -typedef struct { - int lowMem; - int highMem; - char* base; - char* base_high; - int screen; - char* alloc; -} linuxInt10Priv; - -#if defined DoSubModules - -typedef enum { - INT10_NOT_LOADED, - INT10_LOADED_VM86, - INT10_LOADED_X86EMU, - INT10_LOAD_FAILED -} Int10LinuxSubModuleState; - -static Int10LinuxSubModuleState loadedSubModule = INT10_NOT_LOADED; - -static Int10LinuxSubModuleState int10LinuxLoadSubModule(ScrnInfoPtr pScrn); - -#endif /* DoSubModules */ - -xf86Int10InfoPtr -xf86ExtendedInitInt10(int entityIndex, int Flags) -{ - xf86Int10InfoPtr pInt = NULL; - int screen; - int fd; - static void* vidMem = NULL; - static void* sysMem = NULL; - void* vMem = NULL; - void *options = NULL; - int low_mem; - int high_mem = -1; - char *base = SHMERRORPTR; - char *base_high = SHMERRORPTR; - int pagesize; - memType cs; - legacyVGARec vga; - Bool videoBiosMapped = FALSE; - - if (int10Generation != serverGeneration) { - counter = 0; - int10Generation = serverGeneration; - } - - screen = (xf86FindScreenForEntity(entityIndex))->scrnIndex; - - options = xf86HandleInt10Options(xf86Screens[screen],entityIndex); - - if (int10skip(options)) { - xfree(options); - return NULL; - } - -#if defined DoSubModules - if (loadedSubModule == INT10_NOT_LOADED) - loadedSubModule = int10LinuxLoadSubModule(xf86Screens[screen]); - - if (loadedSubModule == INT10_LOAD_FAILED) - return NULL; -#endif - - if ((!vidMem) || (!sysMem)) { - if ((fd = open(DEV_MEM, O_RDWR, 0)) >= 0) { - if (!sysMem) { - DebugF("Mapping sys bios area\n"); - if ((sysMem = mmap((void *)(SYS_BIOS), BIOS_SIZE, - PROT_READ | PROT_EXEC, - MAP_SHARED | MAP_FIXED, fd, SYS_BIOS)) - == MAP_FAILED) { - xf86DrvMsg(screen, X_ERROR, "Cannot map SYS BIOS\n"); - close(fd); - goto error0; - } - } - if (!vidMem) { - DebugF("Mapping VRAM area\n"); - if ((vidMem = mmap((void *)(V_RAM), VRAM_SIZE, - PROT_READ | PROT_WRITE | PROT_EXEC, - MAP_SHARED | MAP_FIXED, fd, V_RAM)) - == MAP_FAILED) { - xf86DrvMsg(screen, X_ERROR, "Cannot map V_RAM\n"); - close(fd); - goto error0; - } - } - close(fd); - } else { - xf86DrvMsg(screen, X_ERROR, "Cannot open %s\n", DEV_MEM); - goto error0; - } - } - - pInt = (xf86Int10InfoPtr)xnfcalloc(1, sizeof(xf86Int10InfoRec)); - pInt->scrnIndex = screen; - pInt->entityIndex = entityIndex; - pInt->dev = xf86GetPciInfoForEntity(entityIndex); - - if (!xf86Int10ExecSetup(pInt)) - goto error0; - pInt->mem = &linuxMem; - pagesize = getpagesize(); - pInt->private = (pointer)xnfcalloc(1, sizeof(linuxInt10Priv)); - ((linuxInt10Priv*)pInt->private)->screen = screen; - ((linuxInt10Priv*)pInt->private)->alloc = - (pointer)xnfcalloc(1, ALLOC_ENTRIES(pagesize)); - - if (!xf86IsEntityPrimary(entityIndex)) { - DebugF("Mapping high memory area\n"); - if ((high_mem = shmget(counter++, HIGH_MEM_SIZE, - IPC_CREAT | SHM_R | SHM_W)) == -1) { - if (errno == ENOSYS) - xf86DrvMsg(screen, X_ERROR, "shmget error\n Please reconfigure" - " your kernel to include System V IPC support\n"); - else - xf86DrvMsg(screen, X_ERROR, - "shmget(highmem) error: %s\n",strerror(errno)); - goto error1; - } - } else { - DebugF("Mapping Video BIOS\n"); - videoBiosMapped = TRUE; - if ((fd = open(DEV_MEM, O_RDWR, 0)) >= 0) { - if ((vMem = mmap((void *)(V_BIOS), SYS_BIOS - V_BIOS, - PROT_READ | PROT_WRITE | PROT_EXEC, - MAP_SHARED | MAP_FIXED, fd, V_BIOS)) - == MAP_FAILED) { - xf86DrvMsg(screen, X_ERROR, "Cannot map V_BIOS\n"); - close(fd); - goto error1; - } - close (fd); - } else - goto error1; - } - ((linuxInt10Priv*)pInt->private)->highMem = high_mem; - - DebugF("Mapping 640kB area\n"); - if ((low_mem = shmget(counter++, V_RAM, - IPC_CREAT | SHM_R | SHM_W)) == -1) { - xf86DrvMsg(screen, X_ERROR, - "shmget(lowmem) error: %s\n",strerror(errno)); - goto error2; - } - - ((linuxInt10Priv*)pInt->private)->lowMem = low_mem; - base = shmat(low_mem, 0, 0); - if (base == SHMERRORPTR) { - xf86DrvMsg(screen, X_ERROR, - "shmat(low_mem) error: %s\n",strerror(errno)); - goto error3; - } - ((linuxInt10Priv *)pInt->private)->base = base; - if (high_mem > -1) { - base_high = shmat(high_mem, 0, 0); - if (base_high == SHMERRORPTR) { - xf86DrvMsg(screen, X_ERROR, - "shmat(high_mem) error: %s\n",strerror(errno)); - goto error3; - } - ((linuxInt10Priv*)pInt->private)->base_high = base_high; - } else - ((linuxInt10Priv*)pInt->private)->base_high = NULL; - - if (!MapCurrentInt10(pInt)) - goto error3; - - Int10Current = pInt; - - DebugF("Mapping int area\n"); - if (xf86ReadBIOS(0, 0, (unsigned char *)0, LOW_PAGE_SIZE) < 0) { - xf86DrvMsg(screen, X_ERROR, "Cannot read int vect\n"); - goto error3; - } - DebugF("done\n"); - /* - * Read in everything between V_BIOS and SYS_BIOS as some system BIOSes - * have executable code there. Note that xf86ReadBIOS() can only bring in - * 64K bytes at a time. - */ - if (!videoBiosMapped) { - memset((pointer)V_BIOS, 0, SYS_BIOS - V_BIOS); - DebugF("Reading BIOS\n"); - for (cs = V_BIOS; cs < SYS_BIOS; cs += V_BIOS_SIZE) - if (xf86ReadBIOS(cs, 0, (pointer)cs, V_BIOS_SIZE) < V_BIOS_SIZE) - xf86DrvMsg(screen, X_WARNING, - "Unable to retrieve all of segment 0x%06lX.\n", - (long)cs); - DebugF("done\n"); - } - - if (xf86IsEntityPrimary(entityIndex) && !(initPrimary(options))) { - if (!xf86int10GetBiosSegment(pInt, NULL)) - goto error3; - - set_return_trap(pInt); -#ifdef _PC - pInt->Flags = Flags & (SET_BIOS_SCRATCH | RESTORE_BIOS_SCRATCH); - if (! (pInt->Flags & SET_BIOS_SCRATCH)) - pInt->Flags &= ~RESTORE_BIOS_SCRATCH; - xf86Int10SaveRestoreBIOSVars(pInt, TRUE); -#endif - } else { - const BusType location_type = xf86int10GetBiosLocationType(pInt); - - switch (location_type) { - case BUS_PCI: { - int err; - struct pci_device *rom_device = - xf86GetPciInfoForEntity(pInt->entityIndex); - -#if HAVE_PCI_DEVICE_ENABLE - pci_device_enable(rom_device); -#endif - - err = pci_device_read_rom(rom_device, (unsigned char *)(V_BIOS)); - if (err) { - xf86DrvMsg(screen,X_ERROR,"Cannot read V_BIOS (%s)\n", - strerror(err)); - goto error3; - } - - pInt->BIOSseg = V_BIOS >> 4; - break; - } - default: - goto error3; - } - - pInt->num = 0xe6; - reset_int_vect(pInt); - set_return_trap(pInt); - LockLegacyVGA(pInt, &vga); - xf86ExecX86int10(pInt); - UnlockLegacyVGA(pInt, &vga); - } -#ifdef DEBUG - dprint(0xc0000, 0x20); -#endif - - xfree(options); - return pInt; - -error3: - if (base_high) - shmdt(base_high); - shmdt(base); - shmdt(0); - if (base_high) - shmdt((char*)HIGH_MEM); - shmctl(low_mem, IPC_RMID, NULL); - Int10Current = NULL; -error2: - if (high_mem > -1) - shmctl(high_mem, IPC_RMID,NULL); -error1: - if (vMem) - munmap(vMem, SYS_BIOS - V_BIOS); - xfree(((linuxInt10Priv*)pInt->private)->alloc); - xfree(pInt->private); -error0: - xfree(options); - xfree(pInt); - return NULL; -} - -Bool -MapCurrentInt10(xf86Int10InfoPtr pInt) -{ - pointer addr; - int fd = -1; - - if (Int10Current) { - shmdt(0); - if (((linuxInt10Priv*)Int10Current->private)->highMem >= 0) - shmdt((char*)HIGH_MEM); - else - munmap((pointer)V_BIOS, (SYS_BIOS - V_BIOS)); - } - addr = shmat(((linuxInt10Priv*)pInt->private)->lowMem, (char*)1, SHM_RND); - if (addr == SHMERRORPTR) { - xf86DrvMsg(pInt->scrnIndex, X_ERROR, "Cannot shmat() low memory\n"); - xf86DrvMsg(pInt->scrnIndex, X_ERROR, - "shmat(low_mem) error: %s\n",strerror(errno)); - return FALSE; - } - if (mprotect((void*)0, V_RAM, PROT_READ|PROT_WRITE|PROT_EXEC) != 0) - xf86DrvMsg(pInt->scrnIndex, X_ERROR, - "Cannot set EXEC bit on low memory: %s\n", strerror(errno)); - - if (((linuxInt10Priv*)pInt->private)->highMem >= 0) { - addr = shmat(((linuxInt10Priv*)pInt->private)->highMem, - (char*)HIGH_MEM, 0); - if (addr == SHMERRORPTR) { - xf86DrvMsg(pInt->scrnIndex, X_ERROR, - "Cannot shmat() high memory\n"); - xf86DrvMsg(pInt->scrnIndex, X_ERROR, - "shmget error: %s\n",strerror(errno)); - return FALSE; - } - if (mprotect((void*)HIGH_MEM, HIGH_MEM_SIZE, - PROT_READ|PROT_WRITE|PROT_EXEC) != 0) - xf86DrvMsg(pInt->scrnIndex, X_ERROR, - "Cannot set EXEC bit on high memory: %s\n", - strerror(errno)); - } else { - if ((fd = open(DEV_MEM, O_RDWR, 0)) >= 0) { - if (mmap((void *)(V_BIOS), SYS_BIOS - V_BIOS, - PROT_READ | PROT_WRITE | PROT_EXEC, - MAP_SHARED | MAP_FIXED, fd, V_BIOS) - == MAP_FAILED) { - xf86DrvMsg(pInt->scrnIndex, X_ERROR, "Cannot map V_BIOS\n"); - close (fd); - return FALSE; - } - } else { - xf86DrvMsg(pInt->scrnIndex, X_ERROR, "Cannot open %s\n",DEV_MEM); - return FALSE; - } - close (fd); - } - - return TRUE; -} - -void -xf86FreeInt10(xf86Int10InfoPtr pInt) -{ - if (!pInt) - return; - -#ifdef _PC - xf86Int10SaveRestoreBIOSVars(pInt, FALSE); -#endif - if (Int10Current == pInt) { - shmdt(0); - if (((linuxInt10Priv*)pInt->private)->highMem >= 0) - shmdt((char*)HIGH_MEM); - else - munmap((pointer)V_BIOS, (SYS_BIOS - V_BIOS)); - Int10Current = NULL; - } - - if (((linuxInt10Priv*)pInt->private)->base_high) - shmdt(((linuxInt10Priv*)pInt->private)->base_high); - shmdt(((linuxInt10Priv*)pInt->private)->base); - shmctl(((linuxInt10Priv*)pInt->private)->lowMem, IPC_RMID, NULL); - if (((linuxInt10Priv*)pInt->private)->highMem >= 0) - shmctl(((linuxInt10Priv*)pInt->private)->highMem, IPC_RMID, NULL); - xfree(((linuxInt10Priv*)pInt->private)->alloc); - xfree(pInt->private); - xfree(pInt); -} - -void * -xf86Int10AllocPages(xf86Int10InfoPtr pInt, int num, int *off) -{ - int pagesize = getpagesize(); - int num_pages = ALLOC_ENTRIES(pagesize); - int i, j; - - for (i = 0; i < (num_pages - num); i++) { - if (((linuxInt10Priv*)pInt->private)->alloc[i] == 0) { - for (j = i; j < (num + i); j++) - if ((((linuxInt10Priv*)pInt->private)->alloc[j] != 0)) - break; - if (j == (num + i)) - break; - else - i = i + num; - } - } - if (i == (num_pages - num)) - return NULL; - - for (j = i; j < (i + num); j++) - ((linuxInt10Priv*)pInt->private)->alloc[j] = 1; - - *off = (i + 1) * pagesize; - - return ((linuxInt10Priv*)pInt->private)->base + ((i + 1) * pagesize); -} - -void -xf86Int10FreePages(xf86Int10InfoPtr pInt, void *pbase, int num) -{ - int pagesize = getpagesize(); - int first = (((unsigned long)pbase - - (unsigned long)((linuxInt10Priv*)pInt->private)->base) - / pagesize) - 1; - int i; - - for (i = first; i < (first + num); i++) - ((linuxInt10Priv*)pInt->private)->alloc[i] = 0; -} - -static CARD8 -read_b(xf86Int10InfoPtr pInt, int addr) -{ - return *((CARD8 *)(memType)addr); -} - -static CARD16 -read_w(xf86Int10InfoPtr pInt, int addr) -{ - return *((CARD16 *)(memType)addr); -} - -static CARD32 -read_l(xf86Int10InfoPtr pInt, int addr) -{ - return *((CARD32 *)(memType)addr); -} - -static void -write_b(xf86Int10InfoPtr pInt, int addr, CARD8 val) -{ - *((CARD8 *)(memType)addr) = val; -} - -static void -write_w(xf86Int10InfoPtr pInt, int addr, CARD16 val) -{ - *((CARD16 *)(memType)addr) = val; -} - -static -void write_l(xf86Int10InfoPtr pInt, int addr, CARD32 val) -{ - *((CARD32 *)(memType) addr) = val; -} - -pointer -xf86int10Addr(xf86Int10InfoPtr pInt, CARD32 addr) -{ - if (addr < V_RAM) - return ((linuxInt10Priv*)pInt->private)->base + addr; - else if (addr < V_BIOS) - return (pointer)(memType)addr; - else if (addr < SYS_BIOS) { - if (((linuxInt10Priv*)pInt->private)->base_high) - return (pointer)(((linuxInt10Priv*)pInt->private)->base_high - - V_BIOS + addr); - else - return (pointer) (memType)addr; - } else - return (pointer) (memType)addr; -} - -#if defined DoSubModules - -static Bool -vm86_tst(void) -{ - int __res; - -#ifdef __PIC__ - /* When compiling with -fPIC, we can't use asm constraint "b" because - %ebx is already taken by gcc. */ - __asm__ __volatile__("pushl %%ebx\n\t" - "movl %2,%%ebx\n\t" - "movl %1,%%eax\n\t" - "int $0x80\n\t" - "popl %%ebx" - :"=a" (__res) - :"n" ((int)113), "r" (NULL)); -#else - __asm__ __volatile__("int $0x80\n\t" - :"=a" (__res):"a" ((int)113), - "b" ((struct vm86_struct *)NULL)); -#endif - - if (__res < 0 && __res == -ENOSYS) - return FALSE; - - return TRUE; -} - -static Int10LinuxSubModuleState -int10LinuxLoadSubModule(ScrnInfoPtr pScrn) -{ - if (vm86_tst()) { - if (xf86LoadSubModule(pScrn,"vm86")) - return INT10_LOADED_VM86; - } - if (xf86LoadSubModule(pScrn,"x86emu")) - return INT10_LOADED_X86EMU; - - return INT10_LOAD_FAILED; -} - -#endif /* DoSubModules */ +/* + * linux specific part of the int10 module + * Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2008 Egbert Eich + */ +#ifdef HAVE_XORG_CONFIG_H +#include +#endif + +#include "xf86.h" +#include "xf86_OSproc.h" +#include "xf86Pci.h" +#include "compiler.h" +#define _INT10_PRIVATE +#include "xf86int10.h" +#ifdef __sparc__ +#define DEV_MEM "/dev/fb" +#else +#define DEV_MEM "/dev/mem" +#endif +#define ALLOC_ENTRIES(x) ((V_RAM / x) - 1) +#define SHMERRORPTR (pointer)(-1) + +#include +#include +#include +#include +#include +#include +#include + +static int counter = 0; +static unsigned long int10Generation = 0; + +static CARD8 read_b(xf86Int10InfoPtr pInt, int addr); +static CARD16 read_w(xf86Int10InfoPtr pInt, int addr); +static CARD32 read_l(xf86Int10InfoPtr pInt, int addr); +static void write_b(xf86Int10InfoPtr pInt, int addr, CARD8 val); +static void write_w(xf86Int10InfoPtr pInt, int addr, CARD16 val); +static void write_l(xf86Int10InfoPtr pInt, int addr, CARD32 val); + +int10MemRec linuxMem = { + read_b, + read_w, + read_l, + write_b, + write_w, + write_l +}; + +typedef struct { + int lowMem; + int highMem; + char* base; + char* base_high; + int screen; + char* alloc; +} linuxInt10Priv; + +#if defined DoSubModules + +typedef enum { + INT10_NOT_LOADED, + INT10_LOADED_VM86, + INT10_LOADED_X86EMU, + INT10_LOAD_FAILED +} Int10LinuxSubModuleState; + +static Int10LinuxSubModuleState loadedSubModule = INT10_NOT_LOADED; + +static Int10LinuxSubModuleState int10LinuxLoadSubModule(ScrnInfoPtr pScrn); + +#endif /* DoSubModules */ + +xf86Int10InfoPtr +xf86ExtendedInitInt10(int entityIndex, int Flags) +{ + xf86Int10InfoPtr pInt = NULL; + int screen; + int fd; + static void* vidMem = NULL; + static void* sysMem = NULL; + void* vMem = NULL; + void *options = NULL; + int low_mem; + int high_mem = -1; + char *base = SHMERRORPTR; + char *base_high = SHMERRORPTR; + int pagesize; + memType cs; + legacyVGARec vga; + Bool videoBiosMapped = FALSE; + + if (int10Generation != serverGeneration) { + counter = 0; + int10Generation = serverGeneration; + } + + screen = (xf86FindScreenForEntity(entityIndex))->scrnIndex; + + options = xf86HandleInt10Options(xf86Screens[screen],entityIndex); + + if (int10skip(options)) { + free(options); + return NULL; + } + +#if defined DoSubModules + if (loadedSubModule == INT10_NOT_LOADED) + loadedSubModule = int10LinuxLoadSubModule(xf86Screens[screen]); + + if (loadedSubModule == INT10_LOAD_FAILED) + return NULL; +#endif + + if ((!vidMem) || (!sysMem)) { + if ((fd = open(DEV_MEM, O_RDWR, 0)) >= 0) { + if (!sysMem) { + DebugF("Mapping sys bios area\n"); + if ((sysMem = mmap((void *)(SYS_BIOS), BIOS_SIZE, + PROT_READ | PROT_EXEC, + MAP_SHARED | MAP_FIXED, fd, SYS_BIOS)) + == MAP_FAILED) { + xf86DrvMsg(screen, X_ERROR, "Cannot map SYS BIOS\n"); + close(fd); + goto error0; + } + } + if (!vidMem) { + DebugF("Mapping VRAM area\n"); + if ((vidMem = mmap((void *)(V_RAM), VRAM_SIZE, + PROT_READ | PROT_WRITE | PROT_EXEC, + MAP_SHARED | MAP_FIXED, fd, V_RAM)) + == MAP_FAILED) { + xf86DrvMsg(screen, X_ERROR, "Cannot map V_RAM\n"); + close(fd); + goto error0; + } + } + close(fd); + } else { + xf86DrvMsg(screen, X_ERROR, "Cannot open %s\n", DEV_MEM); + goto error0; + } + } + + pInt = (xf86Int10InfoPtr)xnfcalloc(1, sizeof(xf86Int10InfoRec)); + pInt->scrnIndex = screen; + pInt->entityIndex = entityIndex; + pInt->dev = xf86GetPciInfoForEntity(entityIndex); + + if (!xf86Int10ExecSetup(pInt)) + goto error0; + pInt->mem = &linuxMem; + pagesize = getpagesize(); + pInt->private = (pointer)xnfcalloc(1, sizeof(linuxInt10Priv)); + ((linuxInt10Priv*)pInt->private)->screen = screen; + ((linuxInt10Priv*)pInt->private)->alloc = + (pointer)xnfcalloc(1, ALLOC_ENTRIES(pagesize)); + + if (!xf86IsEntityPrimary(entityIndex)) { + DebugF("Mapping high memory area\n"); + if ((high_mem = shmget(counter++, HIGH_MEM_SIZE, + IPC_CREAT | SHM_R | SHM_W)) == -1) { + if (errno == ENOSYS) + xf86DrvMsg(screen, X_ERROR, "shmget error\n Please reconfigure" + " your kernel to include System V IPC support\n"); + else + xf86DrvMsg(screen, X_ERROR, + "shmget(highmem) error: %s\n",strerror(errno)); + goto error1; + } + } else { + DebugF("Mapping Video BIOS\n"); + videoBiosMapped = TRUE; + if ((fd = open(DEV_MEM, O_RDWR, 0)) >= 0) { + if ((vMem = mmap((void *)(V_BIOS), SYS_BIOS - V_BIOS, + PROT_READ | PROT_WRITE | PROT_EXEC, + MAP_SHARED | MAP_FIXED, fd, V_BIOS)) + == MAP_FAILED) { + xf86DrvMsg(screen, X_ERROR, "Cannot map V_BIOS\n"); + close(fd); + goto error1; + } + close (fd); + } else + goto error1; + } + ((linuxInt10Priv*)pInt->private)->highMem = high_mem; + + DebugF("Mapping 640kB area\n"); + if ((low_mem = shmget(counter++, V_RAM, + IPC_CREAT | SHM_R | SHM_W)) == -1) { + xf86DrvMsg(screen, X_ERROR, + "shmget(lowmem) error: %s\n",strerror(errno)); + goto error2; + } + + ((linuxInt10Priv*)pInt->private)->lowMem = low_mem; + base = shmat(low_mem, 0, 0); + if (base == SHMERRORPTR) { + xf86DrvMsg(screen, X_ERROR, + "shmat(low_mem) error: %s\n",strerror(errno)); + goto error3; + } + ((linuxInt10Priv *)pInt->private)->base = base; + if (high_mem > -1) { + base_high = shmat(high_mem, 0, 0); + if (base_high == SHMERRORPTR) { + xf86DrvMsg(screen, X_ERROR, + "shmat(high_mem) error: %s\n",strerror(errno)); + goto error3; + } + ((linuxInt10Priv*)pInt->private)->base_high = base_high; + } else + ((linuxInt10Priv*)pInt->private)->base_high = NULL; + + if (!MapCurrentInt10(pInt)) + goto error3; + + Int10Current = pInt; + + DebugF("Mapping int area\n"); + if (xf86ReadBIOS(0, 0, (unsigned char *)0, LOW_PAGE_SIZE) < 0) { + xf86DrvMsg(screen, X_ERROR, "Cannot read int vect\n"); + goto error3; + } + DebugF("done\n"); + /* + * Read in everything between V_BIOS and SYS_BIOS as some system BIOSes + * have executable code there. Note that xf86ReadBIOS() can only bring in + * 64K bytes at a time. + */ + if (!videoBiosMapped) { + memset((pointer)V_BIOS, 0, SYS_BIOS - V_BIOS); + DebugF("Reading BIOS\n"); + for (cs = V_BIOS; cs < SYS_BIOS; cs += V_BIOS_SIZE) + if (xf86ReadBIOS(cs, 0, (pointer)cs, V_BIOS_SIZE) < V_BIOS_SIZE) + xf86DrvMsg(screen, X_WARNING, + "Unable to retrieve all of segment 0x%06lX.\n", + (long)cs); + DebugF("done\n"); + } + + if (xf86IsEntityPrimary(entityIndex) && !(initPrimary(options))) { + if (!xf86int10GetBiosSegment(pInt, NULL)) + goto error3; + + set_return_trap(pInt); +#ifdef _PC + pInt->Flags = Flags & (SET_BIOS_SCRATCH | RESTORE_BIOS_SCRATCH); + if (! (pInt->Flags & SET_BIOS_SCRATCH)) + pInt->Flags &= ~RESTORE_BIOS_SCRATCH; + xf86Int10SaveRestoreBIOSVars(pInt, TRUE); +#endif + } else { + const BusType location_type = xf86int10GetBiosLocationType(pInt); + + switch (location_type) { + case BUS_PCI: { + int err; + struct pci_device *rom_device = + xf86GetPciInfoForEntity(pInt->entityIndex); + +#if HAVE_PCI_DEVICE_ENABLE + pci_device_enable(rom_device); +#endif + + err = pci_device_read_rom(rom_device, (unsigned char *)(V_BIOS)); + if (err) { + xf86DrvMsg(screen,X_ERROR,"Cannot read V_BIOS (%s)\n", + strerror(err)); + goto error3; + } + + pInt->BIOSseg = V_BIOS >> 4; + break; + } + default: + goto error3; + } + + pInt->num = 0xe6; + reset_int_vect(pInt); + set_return_trap(pInt); + LockLegacyVGA(pInt, &vga); + xf86ExecX86int10(pInt); + UnlockLegacyVGA(pInt, &vga); + } +#ifdef DEBUG + dprint(0xc0000, 0x20); +#endif + + free(options); + return pInt; + +error3: + if (base_high) + shmdt(base_high); + shmdt(base); + shmdt(0); + if (base_high) + shmdt((char*)HIGH_MEM); + shmctl(low_mem, IPC_RMID, NULL); + Int10Current = NULL; +error2: + if (high_mem > -1) + shmctl(high_mem, IPC_RMID,NULL); +error1: + if (vMem) + munmap(vMem, SYS_BIOS - V_BIOS); + free(((linuxInt10Priv*)pInt->private)->alloc); + free(pInt->private); +error0: + free(options); + free(pInt); + return NULL; +} + +Bool +MapCurrentInt10(xf86Int10InfoPtr pInt) +{ + pointer addr; + int fd = -1; + + if (Int10Current) { + shmdt(0); + if (((linuxInt10Priv*)Int10Current->private)->highMem >= 0) + shmdt((char*)HIGH_MEM); + else + munmap((pointer)V_BIOS, (SYS_BIOS - V_BIOS)); + } + addr = shmat(((linuxInt10Priv*)pInt->private)->lowMem, (char*)1, SHM_RND); + if (addr == SHMERRORPTR) { + xf86DrvMsg(pInt->scrnIndex, X_ERROR, "Cannot shmat() low memory\n"); + xf86DrvMsg(pInt->scrnIndex, X_ERROR, + "shmat(low_mem) error: %s\n",strerror(errno)); + return FALSE; + } + if (mprotect((void*)0, V_RAM, PROT_READ|PROT_WRITE|PROT_EXEC) != 0) + xf86DrvMsg(pInt->scrnIndex, X_ERROR, + "Cannot set EXEC bit on low memory: %s\n", strerror(errno)); + + if (((linuxInt10Priv*)pInt->private)->highMem >= 0) { + addr = shmat(((linuxInt10Priv*)pInt->private)->highMem, + (char*)HIGH_MEM, 0); + if (addr == SHMERRORPTR) { + xf86DrvMsg(pInt->scrnIndex, X_ERROR, + "Cannot shmat() high memory\n"); + xf86DrvMsg(pInt->scrnIndex, X_ERROR, + "shmget error: %s\n",strerror(errno)); + return FALSE; + } + if (mprotect((void*)HIGH_MEM, HIGH_MEM_SIZE, + PROT_READ|PROT_WRITE|PROT_EXEC) != 0) + xf86DrvMsg(pInt->scrnIndex, X_ERROR, + "Cannot set EXEC bit on high memory: %s\n", + strerror(errno)); + } else { + if ((fd = open(DEV_MEM, O_RDWR, 0)) >= 0) { + if (mmap((void *)(V_BIOS), SYS_BIOS - V_BIOS, + PROT_READ | PROT_WRITE | PROT_EXEC, + MAP_SHARED | MAP_FIXED, fd, V_BIOS) + == MAP_FAILED) { + xf86DrvMsg(pInt->scrnIndex, X_ERROR, "Cannot map V_BIOS\n"); + close (fd); + return FALSE; + } + } else { + xf86DrvMsg(pInt->scrnIndex, X_ERROR, "Cannot open %s\n",DEV_MEM); + return FALSE; + } + close (fd); + } + + return TRUE; +} + +void +xf86FreeInt10(xf86Int10InfoPtr pInt) +{ + if (!pInt) + return; + +#ifdef _PC + xf86Int10SaveRestoreBIOSVars(pInt, FALSE); +#endif + if (Int10Current == pInt) { + shmdt(0); + if (((linuxInt10Priv*)pInt->private)->highMem >= 0) + shmdt((char*)HIGH_MEM); + else + munmap((pointer)V_BIOS, (SYS_BIOS - V_BIOS)); + Int10Current = NULL; + } + + if (((linuxInt10Priv*)pInt->private)->base_high) + shmdt(((linuxInt10Priv*)pInt->private)->base_high); + shmdt(((linuxInt10Priv*)pInt->private)->base); + shmctl(((linuxInt10Priv*)pInt->private)->lowMem, IPC_RMID, NULL); + if (((linuxInt10Priv*)pInt->private)->highMem >= 0) + shmctl(((linuxInt10Priv*)pInt->private)->highMem, IPC_RMID, NULL); + free(((linuxInt10Priv*)pInt->private)->alloc); + free(pInt->private); + free(pInt); +} + +void * +xf86Int10AllocPages(xf86Int10InfoPtr pInt, int num, int *off) +{ + int pagesize = getpagesize(); + int num_pages = ALLOC_ENTRIES(pagesize); + int i, j; + + for (i = 0; i < (num_pages - num); i++) { + if (((linuxInt10Priv*)pInt->private)->alloc[i] == 0) { + for (j = i; j < (num + i); j++) + if ((((linuxInt10Priv*)pInt->private)->alloc[j] != 0)) + break; + if (j == (num + i)) + break; + else + i = i + num; + } + } + if (i == (num_pages - num)) + return NULL; + + for (j = i; j < (i + num); j++) + ((linuxInt10Priv*)pInt->private)->alloc[j] = 1; + + *off = (i + 1) * pagesize; + + return ((linuxInt10Priv*)pInt->private)->base + ((i + 1) * pagesize); +} + +void +xf86Int10FreePages(xf86Int10InfoPtr pInt, void *pbase, int num) +{ + int pagesize = getpagesize(); + int first = (((unsigned long)pbase + - (unsigned long)((linuxInt10Priv*)pInt->private)->base) + / pagesize) - 1; + int i; + + for (i = first; i < (first + num); i++) + ((linuxInt10Priv*)pInt->private)->alloc[i] = 0; +} + +static CARD8 +read_b(xf86Int10InfoPtr pInt, int addr) +{ + return *((CARD8 *)(memType)addr); +} + +static CARD16 +read_w(xf86Int10InfoPtr pInt, int addr) +{ + return *((CARD16 *)(memType)addr); +} + +static CARD32 +read_l(xf86Int10InfoPtr pInt, int addr) +{ + return *((CARD32 *)(memType)addr); +} + +static void +write_b(xf86Int10InfoPtr pInt, int addr, CARD8 val) +{ + *((CARD8 *)(memType)addr) = val; +} + +static void +write_w(xf86Int10InfoPtr pInt, int addr, CARD16 val) +{ + *((CARD16 *)(memType)addr) = val; +} + +static +void write_l(xf86Int10InfoPtr pInt, int addr, CARD32 val) +{ + *((CARD32 *)(memType) addr) = val; +} + +pointer +xf86int10Addr(xf86Int10InfoPtr pInt, CARD32 addr) +{ + if (addr < V_RAM) + return ((linuxInt10Priv*)pInt->private)->base + addr; + else if (addr < V_BIOS) + return (pointer)(memType)addr; + else if (addr < SYS_BIOS) { + if (((linuxInt10Priv*)pInt->private)->base_high) + return (pointer)(((linuxInt10Priv*)pInt->private)->base_high + - V_BIOS + addr); + else + return (pointer) (memType)addr; + } else + return (pointer) (memType)addr; +} + +#if defined DoSubModules + +static Bool +vm86_tst(void) +{ + int __res; + +#ifdef __PIC__ + /* When compiling with -fPIC, we can't use asm constraint "b" because + %ebx is already taken by gcc. */ + __asm__ __volatile__("pushl %%ebx\n\t" + "movl %2,%%ebx\n\t" + "movl %1,%%eax\n\t" + "int $0x80\n\t" + "popl %%ebx" + :"=a" (__res) + :"n" ((int)113), "r" (NULL)); +#else + __asm__ __volatile__("int $0x80\n\t" + :"=a" (__res):"a" ((int)113), + "b" ((struct vm86_struct *)NULL)); +#endif + + if (__res < 0 && __res == -ENOSYS) + return FALSE; + + return TRUE; +} + +static Int10LinuxSubModuleState +int10LinuxLoadSubModule(ScrnInfoPtr pScrn) +{ + if (vm86_tst()) { + if (xf86LoadSubModule(pScrn,"vm86")) + return INT10_LOADED_VM86; + } + if (xf86LoadSubModule(pScrn,"x86emu")) + return INT10_LOADED_X86EMU; + + return INT10_LOAD_FAILED; +} + +#endif /* DoSubModules */ diff --git a/xorg-server/hw/xfree86/os-support/linux/lnx_agp.c b/xorg-server/hw/xfree86/os-support/linux/lnx_agp.c index 61437406d..3fa897366 100644 --- a/xorg-server/hw/xfree86/os-support/linux/lnx_agp.c +++ b/xorg-server/hw/xfree86/os-support/linux/lnx_agp.c @@ -1,374 +1,374 @@ -/* - * Abstraction of the AGP GART interface. - * - * This version is for Linux and Free/Open/NetBSD. - * - * Copyright © 2000 VA Linux Systems, Inc. - * Copyright © 2001 The XFree86 Project, Inc. - */ - - -#ifdef HAVE_XORG_CONFIG_H -#include -#endif - -#include -#include "xf86.h" -#include "xf86Priv.h" -#include "xf86_OSlib.h" -#include "xf86OSpriv.h" - -#if defined(linux) -#include -#include -#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) -#include -#include -#endif - -#ifndef AGP_DEVICE -#define AGP_DEVICE "/dev/agpgart" -#endif -/* AGP page size is independent of the host page size. */ -#ifndef AGP_PAGE_SIZE -#define AGP_PAGE_SIZE 4096 -#endif -#define AGPGART_MAJOR_VERSION 0 -#define AGPGART_MINOR_VERSION 99 - -static int gartFd = -1; -static int acquiredScreen = -1; -static Bool initDone = FALSE; -/* - * Close /dev/agpgart. This frees all associated memory allocated during - * this server generation. - */ -Bool -xf86GARTCloseScreen(int screenNum) -{ - if(gartFd != -1) { - close(gartFd); - acquiredScreen = -1; - gartFd = -1; - initDone = FALSE; - } - return TRUE; -} - -/* - * Open /dev/agpgart. Keep it open until xf86GARTCloseScreen is called. - */ -static Bool -GARTInit(int screenNum) -{ - struct _agp_info agpinf; - - if (initDone) - return (gartFd != -1); - - initDone = TRUE; - - if (gartFd == -1) - gartFd = open(AGP_DEVICE, O_RDWR, 0); - else - return FALSE; - - if (gartFd == -1) { - xf86DrvMsg(screenNum, X_ERROR, - "GARTInit: Unable to open " AGP_DEVICE " (%s)\n", - strerror(errno)); - return FALSE; - } - - xf86AcquireGART(-1); - /* Check the kernel driver version. */ - if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) { - xf86DrvMsg(screenNum, X_ERROR, - "GARTInit: AGPIOC_INFO failed (%s)\n", strerror(errno)); - close(gartFd); - gartFd = -1; - return FALSE; - } - xf86ReleaseGART(-1); - -#if defined(linux) - /* Per Dave Jones, every effort will be made to keep the - * agpgart interface backwards compatible, so allow all - * future versions. - */ - if ( -#if (AGPGART_MAJOR_VERSION > 0) /* quiet compiler */ - agpinf.version.major < AGPGART_MAJOR_VERSION || -#endif - (agpinf.version.major == AGPGART_MAJOR_VERSION && - agpinf.version.minor < AGPGART_MINOR_VERSION)) { - xf86DrvMsg(screenNum, X_ERROR, - "GARTInit: Kernel agpgart driver version is not current" - " (%d.%d vs %d.%d)\n", - agpinf.version.major, agpinf.version.minor, - AGPGART_MAJOR_VERSION, AGPGART_MINOR_VERSION); - close(gartFd); - gartFd = -1; - return FALSE; - } -#endif - - return TRUE; -} - -Bool -xf86AgpGARTSupported(void) -{ - return GARTInit(-1); -} - -AgpInfoPtr -xf86GetAGPInfo(int screenNum) -{ - struct _agp_info agpinf; - AgpInfoPtr info; - - if (!GARTInit(screenNum)) - return NULL; - - - if ((info = xcalloc(sizeof(AgpInfo), 1)) == NULL) { - xf86DrvMsg(screenNum, X_ERROR, - "xf86GetAGPInfo: Failed to allocate AgpInfo\n"); - return NULL; - } - - memset((char*)&agpinf, 0, sizeof(agpinf)); - - if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) { - xf86DrvMsg(screenNum, X_ERROR, - "xf86GetAGPInfo: AGPIOC_INFO failed (%s)\n", - strerror(errno)); - return NULL; - } - - info->bridgeId = agpinf.bridge_id; - info->agpMode = agpinf.agp_mode; - info->base = agpinf.aper_base; - info->size = agpinf.aper_size; - info->totalPages = agpinf.pg_total; - info->systemPages = agpinf.pg_system; - info->usedPages = agpinf.pg_used; - - xf86DrvMsg(screenNum, X_INFO, "Kernel reported %zu total, %zu used\n", agpinf.pg_total, agpinf.pg_used); - - return info; -} - -/* - * XXX If multiple screens can acquire the GART, should we have a reference - * count instead of using acquiredScreen? - */ - -Bool -xf86AcquireGART(int screenNum) -{ - if (screenNum != -1 && !GARTInit(screenNum)) - return FALSE; - - if (screenNum == -1 || acquiredScreen != screenNum) { - if (ioctl(gartFd, AGPIOC_ACQUIRE, 0) != 0) { - xf86DrvMsg(screenNum, X_WARNING, - "xf86AcquireGART: AGPIOC_ACQUIRE failed (%s)\n", - strerror(errno)); - return FALSE; - } - acquiredScreen = screenNum; - } - return TRUE; -} - -Bool -xf86ReleaseGART(int screenNum) -{ - if (screenNum != -1 && !GARTInit(screenNum)) - return FALSE; - - if (acquiredScreen == screenNum) { - /* - * The FreeBSD agp driver removes allocations on release. - * The Linux driver doesn't. xf86ReleaseGART() is expected - * to give up access to the GART, but not to remove any - * allocations. - */ -#if !defined(linux) - if (screenNum == -1) -#endif - { - if (ioctl(gartFd, AGPIOC_RELEASE, 0) != 0) { - xf86DrvMsg(screenNum, X_WARNING, - "xf86ReleaseGART: AGPIOC_RELEASE failed (%s)\n", - strerror(errno)); - return FALSE; - } - acquiredScreen = -1; - } - return TRUE; - } - return FALSE; -} - -int -xf86AllocateGARTMemory(int screenNum, unsigned long size, int type, - unsigned long *physical) -{ - struct _agp_allocate alloc; - int pages; - - /* - * Allocates "size" bytes of GART memory (rounds up to the next - * page multiple) or type "type". A handle (key) for the allocated - * memory is returned. On error, the return value is -1. - */ - - if (!GARTInit(screenNum) || acquiredScreen != screenNum) - return -1; - - pages = (size / AGP_PAGE_SIZE); - if (size % AGP_PAGE_SIZE != 0) - pages++; - - /* XXX check for pages == 0? */ - - alloc.pg_count = pages; - alloc.type = type; - - if (ioctl(gartFd, AGPIOC_ALLOCATE, &alloc) != 0) { - xf86DrvMsg(screenNum, X_WARNING, "xf86AllocateGARTMemory: " - "allocation of %d pages failed\n\t(%s)\n", pages, - strerror(errno)); - return -1; - } - - if (physical) - *physical = alloc.physical; - - return alloc.key; -} - -Bool -xf86DeallocateGARTMemory(int screenNum, int key) -{ - if (!GARTInit(screenNum) || acquiredScreen != screenNum) - return FALSE; - - if (acquiredScreen != screenNum) { - xf86DrvMsg(screenNum, X_ERROR, - "xf86UnbindGARTMemory: AGP not acquired by this screen\n"); - return FALSE; - } - -#ifdef __linux__ - if (ioctl(gartFd, AGPIOC_DEALLOCATE, (int *)key) != 0) { -#else - if (ioctl(gartFd, AGPIOC_DEALLOCATE, &key) != 0) { -#endif - xf86DrvMsg(screenNum, X_WARNING,"xf86DeAllocateGARTMemory: " - "deallocation gart memory with key %d failed\n\t(%s)\n", - key, strerror(errno)); - return FALSE; - } - - return TRUE; -} - -/* Bind GART memory with "key" at "offset" */ -Bool -xf86BindGARTMemory(int screenNum, int key, unsigned long offset) -{ - struct _agp_bind bind; - int pageOffset; - - if (!GARTInit(screenNum) || acquiredScreen != screenNum) - return FALSE; - - if (acquiredScreen != screenNum) { - xf86DrvMsg(screenNum, X_ERROR, - "xf86BindGARTMemory: AGP not acquired by this screen\n"); - return FALSE; - } - - if (offset % AGP_PAGE_SIZE != 0) { - xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: " - "offset (0x%lx) is not page-aligned (%d)\n", - offset, AGP_PAGE_SIZE); - return FALSE; - } - pageOffset = offset / AGP_PAGE_SIZE; - - xf86DrvMsgVerb(screenNum, X_INFO, 3, - "xf86BindGARTMemory: bind key %d at 0x%08lx " - "(pgoffset %d)\n", key, offset, pageOffset); - - bind.pg_start = pageOffset; - bind.key = key; - - if (ioctl(gartFd, AGPIOC_BIND, &bind) != 0) { - xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: " - "binding of gart memory with key %d\n" - "\tat offset 0x%lx failed (%s)\n", - key, offset, strerror(errno)); - return FALSE; - } - - return TRUE; -} - - -/* Unbind GART memory with "key" */ -Bool -xf86UnbindGARTMemory(int screenNum, int key) -{ - struct _agp_unbind unbind; - - if (!GARTInit(screenNum) || acquiredScreen != screenNum) - return FALSE; - - if (acquiredScreen != screenNum) { - xf86DrvMsg(screenNum, X_ERROR, - "xf86UnbindGARTMemory: AGP not acquired by this screen\n"); - return FALSE; - } - - unbind.priority = 0; - unbind.key = key; - - if (ioctl(gartFd, AGPIOC_UNBIND, &unbind) != 0) { - xf86DrvMsg(screenNum, X_WARNING, "xf86UnbindGARTMemory: " - "unbinding of gart memory with key %d " - "failed (%s)\n", key, strerror(errno)); - return FALSE; - } - - xf86DrvMsgVerb(screenNum, X_INFO, 3, - "xf86UnbindGARTMemory: unbind key %d\n", key); - - return TRUE; -} - - -/* XXX Interface may change. */ -Bool -xf86EnableAGP(int screenNum, CARD32 mode) -{ - agp_setup setup; - - if (!GARTInit(screenNum) || acquiredScreen != screenNum) - return FALSE; - - setup.agp_mode = mode; - if (ioctl(gartFd, AGPIOC_SETUP, &setup) != 0) { - xf86DrvMsg(screenNum, X_WARNING, "xf86EnableAGP: " - "AGPIOC_SETUP with mode %ld failed (%s)\n", - (unsigned long)mode, strerror(errno)); - return FALSE; - } - - return TRUE; -} - +/* + * Abstraction of the AGP GART interface. + * + * This version is for Linux and Free/Open/NetBSD. + * + * Copyright © 2000 VA Linux Systems, Inc. + * Copyright © 2001 The XFree86 Project, Inc. + */ + + +#ifdef HAVE_XORG_CONFIG_H +#include +#endif + +#include +#include "xf86.h" +#include "xf86Priv.h" +#include "xf86_OSlib.h" +#include "xf86OSpriv.h" + +#if defined(linux) +#include +#include +#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) +#include +#include +#endif + +#ifndef AGP_DEVICE +#define AGP_DEVICE "/dev/agpgart" +#endif +/* AGP page size is independent of the host page size. */ +#ifndef AGP_PAGE_SIZE +#define AGP_PAGE_SIZE 4096 +#endif +#define AGPGART_MAJOR_VERSION 0 +#define AGPGART_MINOR_VERSION 99 + +static int gartFd = -1; +static int acquiredScreen = -1; +static Bool initDone = FALSE; +/* + * Close /dev/agpgart. This frees all associated memory allocated during + * this server generation. + */ +Bool +xf86GARTCloseScreen(int screenNum) +{ + if(gartFd != -1) { + close(gartFd); + acquiredScreen = -1; + gartFd = -1; + initDone = FALSE; + } + return TRUE; +} + +/* + * Open /dev/agpgart. Keep it open until xf86GARTCloseScreen is called. + */ +static Bool +GARTInit(int screenNum) +{ + struct _agp_info agpinf; + + if (initDone) + return (gartFd != -1); + + initDone = TRUE; + + if (gartFd == -1) + gartFd = open(AGP_DEVICE, O_RDWR, 0); + else + return FALSE; + + if (gartFd == -1) { + xf86DrvMsg(screenNum, X_ERROR, + "GARTInit: Unable to open " AGP_DEVICE " (%s)\n", + strerror(errno)); + return FALSE; + } + + xf86AcquireGART(-1); + /* Check the kernel driver version. */ + if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) { + xf86DrvMsg(screenNum, X_ERROR, + "GARTInit: AGPIOC_INFO failed (%s)\n", strerror(errno)); + close(gartFd); + gartFd = -1; + return FALSE; + } + xf86ReleaseGART(-1); + +#if defined(linux) + /* Per Dave Jones, every effort will be made to keep the + * agpgart interface backwards compatible, so allow all + * future versions. + */ + if ( +#if (AGPGART_MAJOR_VERSION > 0) /* quiet compiler */ + agpinf.version.major < AGPGART_MAJOR_VERSION || +#endif + (agpinf.version.major == AGPGART_MAJOR_VERSION && + agpinf.version.minor < AGPGART_MINOR_VERSION)) { + xf86DrvMsg(screenNum, X_ERROR, + "GARTInit: Kernel agpgart driver version is not current" + " (%d.%d vs %d.%d)\n", + agpinf.version.major, agpinf.version.minor, + AGPGART_MAJOR_VERSION, AGPGART_MINOR_VERSION); + close(gartFd); + gartFd = -1; + return FALSE; + } +#endif + + return TRUE; +} + +Bool +xf86AgpGARTSupported(void) +{ + return GARTInit(-1); +} + +AgpInfoPtr +xf86GetAGPInfo(int screenNum) +{ + struct _agp_info agpinf; + AgpInfoPtr info; + + if (!GARTInit(screenNum)) + return NULL; + + + if ((info = calloc(sizeof(AgpInfo), 1)) == NULL) { + xf86DrvMsg(screenNum, X_ERROR, + "xf86GetAGPInfo: Failed to allocate AgpInfo\n"); + return NULL; + } + + memset((char*)&agpinf, 0, sizeof(agpinf)); + + if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) { + xf86DrvMsg(screenNum, X_ERROR, + "xf86GetAGPInfo: AGPIOC_INFO failed (%s)\n", + strerror(errno)); + return NULL; + } + + info->bridgeId = agpinf.bridge_id; + info->agpMode = agpinf.agp_mode; + info->base = agpinf.aper_base; + info->size = agpinf.aper_size; + info->totalPages = agpinf.pg_total; + info->systemPages = agpinf.pg_system; + info->usedPages = agpinf.pg_used; + + xf86DrvMsg(screenNum, X_INFO, "Kernel reported %zu total, %zu used\n", agpinf.pg_total, agpinf.pg_used); + + return info; +} + +/* + * XXX If multiple screens can acquire the GART, should we have a reference + * count instead of using acquiredScreen? + */ + +Bool +xf86AcquireGART(int screenNum) +{ + if (screenNum != -1 && !GARTInit(screenNum)) + return FALSE; + + if (screenNum == -1 || acquiredScreen != screenNum) { + if (ioctl(gartFd, AGPIOC_ACQUIRE, 0) != 0) { + xf86DrvMsg(screenNum, X_WARNING, + "xf86AcquireGART: AGPIOC_ACQUIRE failed (%s)\n", + strerror(errno)); + return FALSE; + } + acquiredScreen = screenNum; + } + return TRUE; +} + +Bool +xf86ReleaseGART(int screenNum) +{ + if (screenNum != -1 && !GARTInit(screenNum)) + return FALSE; + + if (acquiredScreen == screenNum) { + /* + * The FreeBSD agp driver removes allocations on release. + * The Linux driver doesn't. xf86ReleaseGART() is expected + * to give up access to the GART, but not to remove any + * allocations. + */ +#if !defined(linux) + if (screenNum == -1) +#endif + { + if (ioctl(gartFd, AGPIOC_RELEASE, 0) != 0) { + xf86DrvMsg(screenNum, X_WARNING, + "xf86ReleaseGART: AGPIOC_RELEASE failed (%s)\n", + strerror(errno)); + return FALSE; + } + acquiredScreen = -1; + } + return TRUE; + } + return FALSE; +} + +int +xf86AllocateGARTMemory(int screenNum, unsigned long size, int type, + unsigned long *physical) +{ + struct _agp_allocate alloc; + int pages; + + /* + * Allocates "size" bytes of GART memory (rounds up to the next + * page multiple) or type "type". A handle (key) for the allocated + * memory is returned. On error, the return value is -1. + */ + + if (!GARTInit(screenNum) || acquiredScreen != screenNum) + return -1; + + pages = (size / AGP_PAGE_SIZE); + if (size % AGP_PAGE_SIZE != 0) + pages++; + + /* XXX check for pages == 0? */ + + alloc.pg_count = pages; + alloc.type = type; + + if (ioctl(gartFd, AGPIOC_ALLOCATE, &alloc) != 0) { + xf86DrvMsg(screenNum, X_WARNING, "xf86AllocateGARTMemory: " + "allocation of %d pages failed\n\t(%s)\n", pages, + strerror(errno)); + return -1; + } + + if (physical) + *physical = alloc.physical; + + return alloc.key; +} + +Bool +xf86DeallocateGARTMemory(int screenNum, int key) +{ + if (!GARTInit(screenNum) || acquiredScreen != screenNum) + return FALSE; + + if (acquiredScreen != screenNum) { + xf86DrvMsg(screenNum, X_ERROR, + "xf86UnbindGARTMemory: AGP not acquired by this screen\n"); + return FALSE; + } + +#ifdef __linux__ + if (ioctl(gartFd, AGPIOC_DEALLOCATE, (int *)key) != 0) { +#else + if (ioctl(gartFd, AGPIOC_DEALLOCATE, &key) != 0) { +#endif + xf86DrvMsg(screenNum, X_WARNING,"xf86DeAllocateGARTMemory: " + "deallocation gart memory with key %d failed\n\t(%s)\n", + key, strerror(errno)); + return FALSE; + } + + return TRUE; +} + +/* Bind GART memory with "key" at "offset" */ +Bool +xf86BindGARTMemory(int screenNum, int key, unsigned long offset) +{ + struct _agp_bind bind; + int pageOffset; + + if (!GARTInit(screenNum) || acquiredScreen != screenNum) + return FALSE; + + if (acquiredScreen != screenNum) { + xf86DrvMsg(screenNum, X_ERROR, + "xf86BindGARTMemory: AGP not acquired by this screen\n"); + return FALSE; + } + + if (offset % AGP_PAGE_SIZE != 0) { + xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: " + "offset (0x%lx) is not page-aligned (%d)\n", + offset, AGP_PAGE_SIZE); + return FALSE; + } + pageOffset = offset / AGP_PAGE_SIZE; + + xf86DrvMsgVerb(screenNum, X_INFO, 3, + "xf86BindGARTMemory: bind key %d at 0x%08lx " + "(pgoffset %d)\n", key, offset, pageOffset); + + bind.pg_start = pageOffset; + bind.key = key; + + if (ioctl(gartFd, AGPIOC_BIND, &bind) != 0) { + xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: " + "binding of gart memory with key %d\n" + "\tat offset 0x%lx failed (%s)\n", + key, offset, strerror(errno)); + return FALSE; + } + + return TRUE; +} + + +/* Unbind GART memory with "key" */ +Bool +xf86UnbindGARTMemory(int screenNum, int key) +{ + struct _agp_unbind unbind; + + if (!GARTInit(screenNum) || acquiredScreen != screenNum) + return FALSE; + + if (acquiredScreen != screenNum) { + xf86DrvMsg(screenNum, X_ERROR, + "xf86UnbindGARTMemory: AGP not acquired by this screen\n"); + return FALSE; + } + + unbind.priority = 0; + unbind.key = key; + + if (ioctl(gartFd, AGPIOC_UNBIND, &unbind) != 0) { + xf86DrvMsg(screenNum, X_WARNING, "xf86UnbindGARTMemory: " + "unbinding of gart memory with key %d " + "failed (%s)\n", key, strerror(errno)); + return FALSE; + } + + xf86DrvMsgVerb(screenNum, X_INFO, 3, + "xf86UnbindGARTMemory: unbind key %d\n", key); + + return TRUE; +} + + +/* XXX Interface may change. */ +Bool +xf86EnableAGP(int screenNum, CARD32 mode) +{ + agp_setup setup; + + if (!GARTInit(screenNum) || acquiredScreen != screenNum) + return FALSE; + + setup.agp_mode = mode; + if (ioctl(gartFd, AGPIOC_SETUP, &setup) != 0) { + xf86DrvMsg(screenNum, X_WARNING, "xf86EnableAGP: " + "AGPIOC_SETUP with mode %ld failed (%s)\n", + (unsigned long)mode, strerror(errno)); + return FALSE; + } + + return TRUE; +} + diff --git a/xorg-server/hw/xfree86/os-support/linux/lnx_video.c b/xorg-server/hw/xfree86/os-support/linux/lnx_video.c index 26a17425a..a515b4080 100644 --- a/xorg-server/hw/xfree86/os-support/linux/lnx_video.c +++ b/xorg-server/hw/xfree86/os-support/linux/lnx_video.c @@ -1,878 +1,878 @@ -/* - * Copyright 1992 by Orest Zborowski - * Copyright 1993 by David Wexelblat - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the names of Orest Zborowski and David Wexelblat - * not be used in advertising or publicity pertaining to distribution of - * the software without specific, written prior permission. Orest Zborowski - * and David Wexelblat make no representations about the suitability of this - * software for any purpose. It is provided "as is" without express or - * implied warranty. - * - * OREST ZBOROWSKI AND DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD - * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND - * FITNESS, IN NO EVENT SHALL OREST ZBOROWSKI OR DAVID WEXELBLAT BE LIABLE - * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - */ - -#ifdef HAVE_XORG_CONFIG_H -#include -#endif - -#include -#include - -#include -#include "input.h" -#include "scrnintstr.h" - -#include "xf86.h" -#include "xf86Priv.h" -#include "xf86_OSlib.h" -#include "xf86OSpriv.h" -#ifdef __alpha__ -#include "shared/xf86Axp.h" -#endif - -#ifdef HAS_MTRR_SUPPORT -#include -#endif - -#ifndef MAP_FAILED -#define MAP_FAILED ((void *)-1) -#endif - -static Bool ExtendedEnabled = FALSE; - -#ifdef __ia64__ - -#include "compiler.h" -#include - -#elif !defined(__powerpc__) && \ - !defined(__mc68000__) && \ - !defined(__sparc__) && \ - !defined(__mips__) && \ - !defined(__arm__) - -/* - * Due to conflicts with "compiler.h", don't rely on to declare - * these. - */ -extern int ioperm(unsigned long __from, unsigned long __num, int __turn_on); -extern int iopl(int __level); - -#endif - -#ifdef __alpha__ -# define BUS_BASE bus_base -#else -#define BUS_BASE (0) -#endif /* __alpha__ */ - -/***************************************************************************/ -/* Video Memory Mapping section */ -/***************************************************************************/ - -static pointer mapVidMem(int, unsigned long, unsigned long, int); -static void unmapVidMem(int, pointer, unsigned long); -#if defined (__alpha__) -extern void sethae(unsigned long hae); -extern unsigned long _bus_base __P ((void)) __attribute__ ((const)); -extern unsigned long _bus_base_sparse __P ((void)) __attribute__ ((const)); - -static pointer mapVidMemSparse(int, unsigned long, unsigned long, int); -extern axpDevice lnxGetAXP(void); -static void unmapVidMemSparse(int, pointer, unsigned long); -static axpDevice axpSystem = -1; -static Bool needSparse; -static unsigned long hae_thresh; -static unsigned long hae_mask; -static unsigned long bus_base; -#endif - -#ifdef HAS_MTRR_SUPPORT - -#define SPLIT_WC_REGIONS 1 - -static pointer setWC(int, unsigned long, unsigned long, Bool, MessageType); -static void undoWC(int, pointer); - -/* The file desc for /proc/mtrr. Once opened, left opened, and the mtrr - driver will clean up when we exit. */ -#define MTRR_FD_UNOPENED (-1) /* We have yet to open /proc/mtrr */ -#define MTRR_FD_PROBLEM (-2) /* We tried to open /proc/mtrr, but had - a problem. */ -static int mtrr_fd = MTRR_FD_UNOPENED; - -/* Open /proc/mtrr. FALSE on failure. Will always fail on Linux 2.0, - and will fail on Linux 2.2 with MTRR support configured out, - so verbosity should be chosen appropriately. */ -static Bool -mtrr_open(int verbosity) -{ - /* Only report absence of /proc/mtrr once. */ - static Bool warned = FALSE; - - if (mtrr_fd == MTRR_FD_UNOPENED) { - mtrr_fd = open("/proc/mtrr", O_WRONLY); - - if (mtrr_fd < 0) - mtrr_fd = MTRR_FD_PROBLEM; - } - - if (mtrr_fd == MTRR_FD_PROBLEM) { - /* To make sure we only ever warn once, need to check - verbosity outside xf86MsgVerb */ - if (!warned && verbosity <= xf86GetVerbosity()) { - xf86MsgVerb(X_WARNING, verbosity, - "System lacks support for changing MTRRs\n"); - warned = TRUE; - } - - return FALSE; - } - else - return TRUE; -} - -/* - * We maintain a list of WC regions for each physical mapping so they can - * be undone when unmapping. - */ - -struct mtrr_wc_region { - struct mtrr_sentry sentry; - Bool added; /* added WC or removed it */ - struct mtrr_wc_region * next; -}; - - -static struct mtrr_wc_region * -mtrr_cull_wc_region(int screenNum, unsigned long base, unsigned long size, - MessageType from) -{ - /* Some BIOS writers thought that setting wc over the mmio - region of a graphics devices was a good idea. Try to fix - it. */ - - struct mtrr_gentry gent; - struct mtrr_wc_region *wcreturn = NULL, *wcr; - int count, ret=0; - - /* Linux 2.0 users should not get a warning without -verbose */ - if (!mtrr_open(2)) - return NULL; - - for (gent.regnum = 0; - ioctl(mtrr_fd, MTRRIOC_GET_ENTRY, &gent) >= 0; - gent.regnum++) { - if (gent.type != MTRR_TYPE_WRCOMB - || gent.base + gent.size <= base - || base + size <= gent.base) - continue; - - /* Found an overlapping region. Delete it. */ - - wcr = xalloc(sizeof(*wcr)); - if (!wcr) - return NULL; - wcr->sentry.base = gent.base; - wcr->sentry.size = gent.size; - wcr->sentry.type = MTRR_TYPE_WRCOMB; - wcr->added = FALSE; - - count = 3; - while (count-- && - (ret = ioctl(mtrr_fd, MTRRIOC_KILL_ENTRY, &(wcr->sentry))) < 0); - - if (ret >= 0) { - xf86DrvMsg(screenNum, from, - "Removed MMIO write-combining range " - "(0x%lx,0x%lx)\n", - (unsigned long) gent.base, (unsigned long) gent.size); - wcr->next = wcreturn; - wcreturn = wcr; - gent.regnum--; - } else { - xfree(wcr); - xf86DrvMsgVerb(screenNum, X_WARNING, 0, - "Failed to remove MMIO " - "write-combining range (0x%lx,0x%lx)\n", - gent.base, (unsigned long) gent.size); - } - } - return wcreturn; -} - - -static struct mtrr_wc_region * -mtrr_remove_offending(int screenNum, unsigned long base, unsigned long size, - MessageType from) -{ - struct mtrr_gentry gent; - struct mtrr_wc_region *wcreturn = NULL, **wcr; - - if (!mtrr_open(2)) - return NULL; - - wcr = &wcreturn; - for (gent.regnum = 0; - ioctl(mtrr_fd, MTRRIOC_GET_ENTRY, &gent) >= 0; gent.regnum++ ) { - if (gent.type == MTRR_TYPE_WRCOMB - && ((gent.base >= base && gent.base + gent.size < base + size) || - (gent.base > base && gent.base + gent.size <= base + size))) { - *wcr = mtrr_cull_wc_region(screenNum, gent.base, gent.size, from); - if (*wcr) gent.regnum--; - while(*wcr) { - wcr = &((*wcr)->next); - } - } - } - return wcreturn; -} - - -static struct mtrr_wc_region * -mtrr_add_wc_region(int screenNum, unsigned long base, unsigned long size, - MessageType from) -{ - struct mtrr_wc_region **wcr, *wcreturn, *curwcr; - - /* - * There can be only one.... - */ - - wcreturn = mtrr_remove_offending(screenNum, base, size, from); - wcr = &wcreturn; - while (*wcr) { - wcr = &((*wcr)->next); - } - - /* Linux 2.0 should not warn, unless the user explicitly asks for - WC. */ - - if (!mtrr_open(from == X_CONFIG ? 0 : 2)) - return wcreturn; - - *wcr = curwcr = xalloc(sizeof(**wcr)); - if (!curwcr) - return wcreturn; - - curwcr->sentry.base = base; - curwcr->sentry.size = size; - curwcr->sentry.type = MTRR_TYPE_WRCOMB; - curwcr->added = TRUE; - curwcr->next = NULL; - -#if SPLIT_WC_REGIONS - /* - * Splits up the write-combining region if it is not aligned on a - * size boundary. - */ - - { - unsigned long lbase, d_size = 1; - unsigned long n_size = size; - unsigned long n_base = base; - - for (lbase = n_base, d_size = 1; !(lbase & 1); - lbase = lbase >> 1, d_size <<= 1); - while (d_size > n_size) - d_size = d_size >> 1; - DebugF("WC_BASE: 0x%lx WC_END: 0x%lx\n",base,base+d_size-1); - n_base += d_size; - n_size -= d_size; - if (n_size) { - xf86DrvMsgVerb(screenNum,X_INFO,3,"Splitting WC range: " - "base: 0x%lx, size: 0x%lx\n",base,size); - curwcr->next = mtrr_add_wc_region(screenNum, n_base, n_size,from); - } - curwcr->sentry.size = d_size; - } - - /*****************************************************************/ -#endif /* SPLIT_WC_REGIONS */ - - if (ioctl(mtrr_fd, MTRRIOC_ADD_ENTRY, &curwcr->sentry) >= 0) { - /* Avoid printing on every VT switch */ - if (xf86ServerIsInitialising()) { - xf86DrvMsg(screenNum, from, - "Write-combining range (0x%lx,0x%lx)\n", - base, size); - } - return wcreturn; - } - else { - *wcr = curwcr->next; - xfree(curwcr); - - /* Don't complain about the VGA region: MTRR fixed - regions aren't currently supported, but might be in - the future. */ - if ((unsigned long)base >= 0x100000) { - xf86DrvMsgVerb(screenNum, X_WARNING, 0, - "Failed to set up write-combining range " - "(0x%lx,0x%lx)\n", base, size); - } - return wcreturn; - } -} - -static void -mtrr_undo_wc_region(int screenNum, struct mtrr_wc_region *wcr) -{ - struct mtrr_wc_region *p, *prev; - - if (mtrr_fd >= 0) { - p = wcr; - while (p) { - if (p->added) - ioctl(mtrr_fd, MTRRIOC_DEL_ENTRY, &p->sentry); - prev = p; - p = p->next; - xfree(prev); - } - } -} - -static pointer -setWC(int screenNum, unsigned long base, unsigned long size, Bool enable, - MessageType from) -{ - if (enable) - return mtrr_add_wc_region(screenNum, base, size, from); - else - return mtrr_cull_wc_region(screenNum, base, size, from); -} - -static void -undoWC(int screenNum, pointer regioninfo) -{ - mtrr_undo_wc_region(screenNum, regioninfo); -} - -#endif /* HAS_MTRR_SUPPORT */ - -void -xf86OSInitVidMem(VidMemInfoPtr pVidMem) -{ - pVidMem->linearSupported = TRUE; -#ifdef __alpha__ - if (axpSystem == -1) { - axpSystem = lnxGetAXP(); - if ((needSparse = (_bus_base_sparse() > 0))) { - hae_thresh = xf86AXPParams[axpSystem].hae_thresh; - hae_mask = xf86AXPParams[axpSystem].hae_mask; - } - bus_base = _bus_base(); - } - if (needSparse) { - xf86Msg(X_INFO,"Machine needs sparse mapping\n"); - pVidMem->mapMem = mapVidMemSparse; - pVidMem->unmapMem = unmapVidMemSparse; - } else { - xf86Msg(X_INFO,"Machine type has 8/16 bit access\n"); - pVidMem->mapMem = mapVidMem; - pVidMem->unmapMem = unmapVidMem; - } -#else - pVidMem->mapMem = mapVidMem; - pVidMem->unmapMem = unmapVidMem; -#endif /* __alpha__ */ - - -#ifdef HAS_MTRR_SUPPORT - pVidMem->setWC = setWC; - pVidMem->undoWC = undoWC; -#endif - pVidMem->initialised = TRUE; -} - -#ifdef __sparc__ -/* Basically, you simply cannot do this on Sparc. You have to do something portable - * like use /dev/fb* or mmap() on /proc/bus/pci/X/Y nodes. -DaveM - */ -static pointer mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags) -{ - return NULL; -} -#else -static pointer -mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags) -{ - pointer base; - int fd; - int mapflags = MAP_SHARED; - int prot; - memType realBase, alignOff; - - realBase = Base & ~(getpagesize() - 1); - alignOff = Base - realBase; - DebugF("base: %lx, realBase: %lx, alignOff: %lx \n", - Base,realBase,alignOff); - -#if defined(__ia64__) || defined(__arm__) || defined(__s390__) -#ifndef MAP_WRITECOMBINED -#define MAP_WRITECOMBINED 0x00010000 -#endif -#ifndef MAP_NONCACHED -#define MAP_NONCACHED 0x00020000 -#endif - if(flags & VIDMEM_FRAMEBUFFER) - mapflags |= MAP_WRITECOMBINED; - else - mapflags |= MAP_NONCACHED; -#endif - -#if 0 - /* this will disappear when people upgrade their kernels */ - fd = open(DEV_MEM, - ((flags & VIDMEM_READONLY) ? O_RDONLY : O_RDWR) | O_SYNC); -#else - fd = open(DEV_MEM, (flags & VIDMEM_READONLY) ? O_RDONLY : O_RDWR); -#endif - if (fd < 0) - { - FatalError("xf86MapVidMem: failed to open " DEV_MEM " (%s)\n", - strerror(errno)); - } - - if (flags & VIDMEM_READONLY) - prot = PROT_READ; - else - prot = PROT_READ | PROT_WRITE; - - /* This requires linux-0.99.pl10 or above */ - base = mmap((caddr_t)0, Size + alignOff, prot, mapflags, fd, - (off_t)realBase + BUS_BASE); - close(fd); - if (base == MAP_FAILED) { - FatalError("xf86MapVidMem: Could not mmap framebuffer" - " (0x%08lx,0x%lx) (%s)\n", Base, Size, - strerror(errno)); - } - DebugF("base: %lx aligned base: %lx\n",base, base + alignOff); - return (char *)base + alignOff; -} -#endif /* !(__sparc__) */ - -static void -unmapVidMem(int ScreenNum, pointer Base, unsigned long Size) -{ - memType alignOff = (memType)Base - - ((memType)Base & ~(getpagesize() - 1)); - - DebugF("alignment offset: %lx\n",alignOff); - munmap((caddr_t)((memType)Base - alignOff), (Size + alignOff)); -} - - -/***************************************************************************/ -/* I/O Permissions section */ -/***************************************************************************/ - -#if defined(__powerpc__) -volatile unsigned char *ioBase = NULL; - -#ifndef __NR_pciconfig_iobase -#define __NR_pciconfig_iobase 200 -#endif - -#endif - -Bool -xf86EnableIO(void) -{ -#if defined(__powerpc__) - int fd; - unsigned int ioBase_phys; -#endif - - if (ExtendedEnabled) - return TRUE; - -#if defined(__powerpc__) - ioBase_phys = syscall(__NR_pciconfig_iobase, 2, 0, 0); - - fd = open("/dev/mem", O_RDWR); - if (ioBase == NULL) { - ioBase = (volatile unsigned char *)mmap(0, 0x20000, - PROT_READ | PROT_WRITE, MAP_SHARED, fd, - ioBase_phys); -/* Should this be fatal or just a warning? */ -#if 0 - if (ioBase == MAP_FAILED) { - xf86Msg(X_WARNING, - "xf86EnableIOPorts: Failed to map iobase (%s)\n", - strerror(errno)); - return FALSE; - } -#endif - } - close(fd); -#elif !defined(__mc68000__) && !defined(__sparc__) && !defined(__mips__) && !defined(__sh__) && !defined(__hppa__) && !defined(__s390__) && !defined(__arm__) && !defined(__m32r__) - if (ioperm(0, 1024, 1) || iopl(3)) { - if (errno == ENODEV) - ErrorF("xf86EnableIOPorts: no I/O ports found\n"); - else - FatalError("xf86EnableIOPorts: failed to set IOPL" - " for I/O (%s)\n", strerror(errno)); - return FALSE; - } -# if !defined(__alpha__) - ioperm(0x40,4,0); /* trap access to the timer chip */ - ioperm(0x60,4,0); /* trap access to the keyboard controller */ -# endif -#endif - ExtendedEnabled = TRUE; - - return TRUE; -} - -void -xf86DisableIO(void) -{ - if (!ExtendedEnabled) - return; -#if defined(__powerpc__) - munmap(ioBase, 0x20000); - ioBase = NULL; -#elif !defined(__mc68000__) && !defined(__sparc__) && !defined(__mips__) && !defined(__sh__) && !defined(__hppa__) && !defined(__arm__) && !defined(__s390__) && !defined(__m32r__) - iopl(0); - ioperm(0, 1024, 0); -#endif - ExtendedEnabled = FALSE; - - return; -} - -#if defined (__alpha__) - -#define vuip volatile unsigned int * - -extern int readDense8(pointer Base, register unsigned long Offset); -extern int readDense16(pointer Base, register unsigned long Offset); -extern int readDense32(pointer Base, register unsigned long Offset); -extern void -writeDenseNB8(int Value, pointer Base, register unsigned long Offset); -extern void -writeDenseNB16(int Value, pointer Base, register unsigned long Offset); -extern void -writeDenseNB32(int Value, pointer Base, register unsigned long Offset); -extern void -writeDense8(int Value, pointer Base, register unsigned long Offset); -extern void -writeDense16(int Value, pointer Base, register unsigned long Offset); -extern void -writeDense32(int Value, pointer Base, register unsigned long Offset); - -static int readSparse8(pointer Base, register unsigned long Offset); -static int readSparse16(pointer Base, register unsigned long Offset); -static int readSparse32(pointer Base, register unsigned long Offset); -static void -writeSparseNB8(int Value, pointer Base, register unsigned long Offset); -static void -writeSparseNB16(int Value, pointer Base, register unsigned long Offset); -static void -writeSparseNB32(int Value, pointer Base, register unsigned long Offset); -static void -writeSparse8(int Value, pointer Base, register unsigned long Offset); -static void -writeSparse16(int Value, pointer Base, register unsigned long Offset); -static void -writeSparse32(int Value, pointer Base, register unsigned long Offset); - -#define DENSE_BASE 0x2ff00000000UL -#define SPARSE_BASE 0x30000000000UL - -static unsigned long msb_set = 0; - -static pointer -mapVidMemSparse(int ScreenNum, unsigned long Base, unsigned long Size, int flags) -{ - int fd, prot; - unsigned long ret, rets = 0; - - static Bool was_here = FALSE; - - if (!was_here) { - was_here = TRUE; - - xf86WriteMmio8 = writeSparse8; - xf86WriteMmio16 = writeSparse16; - xf86WriteMmio32 = writeSparse32; - xf86WriteMmioNB8 = writeSparseNB8; - xf86WriteMmioNB16 = writeSparseNB16; - xf86WriteMmioNB32 = writeSparseNB32; - xf86ReadMmio8 = readSparse8; - xf86ReadMmio16 = readSparse16; - xf86ReadMmio32 = readSparse32; - } - - fd = open(DEV_MEM, (flags & VIDMEM_READONLY) ? O_RDONLY : O_RDWR); - if (fd < 0) { - FatalError("xf86MapVidMem: failed to open " DEV_MEM " (%s)\n", - strerror(errno)); - } - -#if 0 - xf86Msg(X_INFO,"mapVidMemSparse: try Base 0x%lx size 0x%lx flags 0x%x\n", - Base, Size, flags); -#endif - - if (flags & VIDMEM_READONLY) - prot = PROT_READ; - else - prot = PROT_READ | PROT_WRITE; - - /* This requirers linux-0.99.pl10 or above */ - - /* - * Always do DENSE mmap, since read32/write32 currently require it. - */ - ret = (unsigned long)mmap((caddr_t)(DENSE_BASE + Base), Size, - prot, MAP_SHARED, fd, - (off_t) (bus_base + Base)); - - /* - * Do SPARSE mmap only when MMIO and not MMIO_32BIT, or FRAMEBUFFER - * and SPARSE (which should require the use of read/write macros). - * - * By not SPARSE mmapping an 8MB framebuffer, we can save approx. 256K - * bytes worth of pagetable (32 pages). - */ - if (((flags & VIDMEM_MMIO) && !(flags & VIDMEM_MMIO_32BIT)) || - ((flags & VIDMEM_FRAMEBUFFER) && (flags & VIDMEM_SPARSE))) - { - rets = (unsigned long)mmap((caddr_t)(SPARSE_BASE + (Base << 5)), - Size << 5, prot, MAP_SHARED, fd, - (off_t) _bus_base_sparse() + (Base << 5)); - } - - close(fd); - - if (ret == (unsigned long)MAP_FAILED) { - FatalError("xf86MapVidMemSparse: Could not (dense) mmap fb (%s)\n", - strerror(errno)); - } - - if (((flags & VIDMEM_MMIO) && !(flags & VIDMEM_MMIO_32BIT)) || - ((flags & VIDMEM_FRAMEBUFFER) && (flags & VIDMEM_SPARSE))) - { - if (rets == (unsigned long)MAP_FAILED || - rets != (SPARSE_BASE + (Base << 5))) - { - FatalError("mapVidMemSparse: Could not (sparse) mmap fb (%s)\n", - strerror(errno)); - } - } - -#if 1 - if (rets) - xf86Msg(X_INFO,"mapVidMemSparse: mapped Base 0x%lx size 0x%lx" - " to DENSE at 0x%lx and SPARSE at 0x%lx\n", - Base, Size, ret, rets); - else - xf86Msg(X_INFO,"mapVidMemSparse: mapped Base 0x%lx size 0x%lx" - " to DENSE only at 0x%lx\n", - Base, Size, ret); - -#endif - return (pointer) ret; -} - -static void -unmapVidMemSparse(int ScreenNum, pointer Base, unsigned long Size) -{ - unsigned long Offset = (unsigned long)Base - DENSE_BASE; -#if 1 - xf86Msg(X_INFO,"unmapVidMemSparse: unmapping Base 0x%lx Size 0x%lx\n", - Base, Size); -#endif - /* Unmap DENSE always. */ - munmap((caddr_t)Base, Size); - - /* Unmap SPARSE always, and ignore error in case we did not map it. */ - munmap((caddr_t)(SPARSE_BASE + (Offset << 5)), Size << 5); -} - -static int -readSparse8(pointer Base, register unsigned long Offset) -{ - register unsigned long result, shift; - register unsigned long msb; - - mem_barrier(); - Offset += (unsigned long)Base - DENSE_BASE; - shift = (Offset & 0x3) << 3; - if (Offset >= (hae_thresh)) { - msb = Offset & hae_mask; - Offset -= msb; - if (msb_set != msb) { - sethae(msb); - msb_set = msb; - } - } - - mem_barrier(); - result = *(vuip) (SPARSE_BASE + (Offset << 5)); - result >>= shift; - return 0xffUL & result; -} - -static int -readSparse16(pointer Base, register unsigned long Offset) -{ - register unsigned long result, shift; - register unsigned long msb; - - mem_barrier(); - Offset += (unsigned long)Base - DENSE_BASE; - shift = (Offset & 0x2) << 3; - if (Offset >= hae_thresh) { - msb = Offset & hae_mask; - Offset -= msb; - if (msb_set != msb) { - sethae(msb); - msb_set = msb; - } - } - - mem_barrier(); - result = *(vuip)(SPARSE_BASE + (Offset<<5) + (1<<(5-2))); - result >>= shift; - return 0xffffUL & result; -} - -static int -readSparse32(pointer Base, register unsigned long Offset) -{ - /* NOTE: this is really using DENSE. */ - mem_barrier(); - return *(vuip)((unsigned long)Base+(Offset)); -} - -static void -writeSparse8(int Value, pointer Base, register unsigned long Offset) -{ - register unsigned long msb; - register unsigned int b = Value & 0xffU; - - write_mem_barrier(); - Offset += (unsigned long)Base - DENSE_BASE; - if (Offset >= hae_thresh) { - msb = Offset & hae_mask; - Offset -= msb; - if (msb_set != msb) { - sethae(msb); - msb_set = msb; - } - } - - write_mem_barrier(); - *(vuip) (SPARSE_BASE + (Offset << 5)) = b * 0x01010101; -} - -static void -writeSparse16(int Value, pointer Base, register unsigned long Offset) -{ - register unsigned long msb; - register unsigned int w = Value & 0xffffU; - - write_mem_barrier(); - Offset += (unsigned long)Base - DENSE_BASE; - if (Offset >= hae_thresh) { - msb = Offset & hae_mask; - Offset -= msb; - if (msb_set != msb) { - sethae(msb); - msb_set = msb; - } - } - - write_mem_barrier(); - *(vuip)(SPARSE_BASE + (Offset<<5) + (1<<(5-2))) = w * 0x00010001; -} - -static void -writeSparse32(int Value, pointer Base, register unsigned long Offset) -{ - /* NOTE: this is really using DENSE. */ - write_mem_barrier(); - *(vuip)((unsigned long)Base + (Offset)) = Value; - return; -} - -static void -writeSparseNB8(int Value, pointer Base, register unsigned long Offset) -{ - register unsigned long msb; - register unsigned int b = Value & 0xffU; - - Offset += (unsigned long)Base - DENSE_BASE; - if (Offset >= hae_thresh) { - msb = Offset & hae_mask; - Offset -= msb; - if (msb_set != msb) { - sethae(msb); - msb_set = msb; - } - } - *(vuip) (SPARSE_BASE + (Offset << 5)) = b * 0x01010101; -} - -static void -writeSparseNB16(int Value, pointer Base, register unsigned long Offset) -{ - register unsigned long msb; - register unsigned int w = Value & 0xffffU; - - Offset += (unsigned long)Base - DENSE_BASE; - if (Offset >= hae_thresh) { - msb = Offset & hae_mask; - Offset -= msb; - if (msb_set != msb) { - sethae(msb); - msb_set = msb; - } - } - *(vuip)(SPARSE_BASE+(Offset<<5)+(1<<(5-2))) = w * 0x00010001; -} - -static void -writeSparseNB32(int Value, pointer Base, register unsigned long Offset) -{ - /* NOTE: this is really using DENSE. */ - *(vuip)((unsigned long)Base + (Offset)) = Value; - return; -} - -void (*xf86WriteMmio8)(int Value, pointer Base, unsigned long Offset) - = writeDense8; -void (*xf86WriteMmio16)(int Value, pointer Base, unsigned long Offset) - = writeDense16; -void (*xf86WriteMmio32)(int Value, pointer Base, unsigned long Offset) - = writeDense32; -void (*xf86WriteMmioNB8)(int Value, pointer Base, unsigned long Offset) - = writeDenseNB8; -void (*xf86WriteMmioNB16)(int Value, pointer Base, unsigned long Offset) - = writeDenseNB16; -void (*xf86WriteMmioNB32)(int Value, pointer Base, unsigned long Offset) - = writeDenseNB32; -int (*xf86ReadMmio8)(pointer Base, unsigned long Offset) - = readDense8; -int (*xf86ReadMmio16)(pointer Base, unsigned long Offset) - = readDense16; -int (*xf86ReadMmio32)(pointer Base, unsigned long Offset) - = readDense32; - -#endif /* __alpha__ */ +/* + * Copyright 1992 by Orest Zborowski + * Copyright 1993 by David Wexelblat + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the names of Orest Zborowski and David Wexelblat + * not be used in advertising or publicity pertaining to distribution of + * the software without specific, written prior permission. Orest Zborowski + * and David Wexelblat make no representations about the suitability of this + * software for any purpose. It is provided "as is" without express or + * implied warranty. + * + * OREST ZBOROWSKI AND DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD + * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL OREST ZBOROWSKI OR DAVID WEXELBLAT BE LIABLE + * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#ifdef HAVE_XORG_CONFIG_H +#include +#endif + +#include +#include + +#include +#include "input.h" +#include "scrnintstr.h" + +#include "xf86.h" +#include "xf86Priv.h" +#include "xf86_OSlib.h" +#include "xf86OSpriv.h" +#ifdef __alpha__ +#include "shared/xf86Axp.h" +#endif + +#ifdef HAS_MTRR_SUPPORT +#include +#endif + +#ifndef MAP_FAILED +#define MAP_FAILED ((void *)-1) +#endif + +static Bool ExtendedEnabled = FALSE; + +#ifdef __ia64__ + +#include "compiler.h" +#include + +#elif !defined(__powerpc__) && \ + !defined(__mc68000__) && \ + !defined(__sparc__) && \ + !defined(__mips__) && \ + !defined(__arm__) + +/* + * Due to conflicts with "compiler.h", don't rely on to declare + * these. + */ +extern int ioperm(unsigned long __from, unsigned long __num, int __turn_on); +extern int iopl(int __level); + +#endif + +#ifdef __alpha__ +# define BUS_BASE bus_base +#else +#define BUS_BASE (0) +#endif /* __alpha__ */ + +/***************************************************************************/ +/* Video Memory Mapping section */ +/***************************************************************************/ + +static pointer mapVidMem(int, unsigned long, unsigned long, int); +static void unmapVidMem(int, pointer, unsigned long); +#if defined (__alpha__) +extern void sethae(unsigned long hae); +extern unsigned long _bus_base __P ((void)) __attribute__ ((const)); +extern unsigned long _bus_base_sparse __P ((void)) __attribute__ ((const)); + +static pointer mapVidMemSparse(int, unsigned long, unsigned long, int); +extern axpDevice lnxGetAXP(void); +static void unmapVidMemSparse(int, pointer, unsigned long); +static axpDevice axpSystem = -1; +static Bool needSparse; +static unsigned long hae_thresh; +static unsigned long hae_mask; +static unsigned long bus_base; +#endif + +#ifdef HAS_MTRR_SUPPORT + +#define SPLIT_WC_REGIONS 1 + +static pointer setWC(int, unsigned long, unsigned long, Bool, MessageType); +static void undoWC(int, pointer); + +/* The file desc for /proc/mtrr. Once opened, left opened, and the mtrr + driver will clean up when we exit. */ +#define MTRR_FD_UNOPENED (-1) /* We have yet to open /proc/mtrr */ +#define MTRR_FD_PROBLEM (-2) /* We tried to open /proc/mtrr, but had + a problem. */ +static int mtrr_fd = MTRR_FD_UNOPENED; + +/* Open /proc/mtrr. FALSE on failure. Will always fail on Linux 2.0, + and will fail on Linux 2.2 with MTRR support configured out, + so verbosity should be chosen appropriately. */ +static Bool +mtrr_open(int verbosity) +{ + /* Only report absence of /proc/mtrr once. */ + static Bool warned = FALSE; + + if (mtrr_fd == MTRR_FD_UNOPENED) { + mtrr_fd = open("/proc/mtrr", O_WRONLY); + + if (mtrr_fd < 0) + mtrr_fd = MTRR_FD_PROBLEM; + } + + if (mtrr_fd == MTRR_FD_PROBLEM) { + /* To make sure we only ever warn once, need to check + verbosity outside xf86MsgVerb */ + if (!warned && verbosity <= xf86GetVerbosity()) { + xf86MsgVerb(X_WARNING, verbosity, + "System lacks support for changing MTRRs\n"); + warned = TRUE; + } + + return FALSE; + } + else + return TRUE; +} + +/* + * We maintain a list of WC regions for each physical mapping so they can + * be undone when unmapping. + */ + +struct mtrr_wc_region { + struct mtrr_sentry sentry; + Bool added; /* added WC or removed it */ + struct mtrr_wc_region * next; +}; + + +static struct mtrr_wc_region * +mtrr_cull_wc_region(int screenNum, unsigned long base, unsigned long size, + MessageType from) +{ + /* Some BIOS writers thought that setting wc over the mmio + region of a graphics devices was a good idea. Try to fix + it. */ + + struct mtrr_gentry gent; + struct mtrr_wc_region *wcreturn = NULL, *wcr; + int count, ret=0; + + /* Linux 2.0 users should not get a warning without -verbose */ + if (!mtrr_open(2)) + return NULL; + + for (gent.regnum = 0; + ioctl(mtrr_fd, MTRRIOC_GET_ENTRY, &gent) >= 0; + gent.regnum++) { + if (gent.type != MTRR_TYPE_WRCOMB + || gent.base + gent.size <= base + || base + size <= gent.base) + continue; + + /* Found an overlapping region. Delete it. */ + + wcr = malloc(sizeof(*wcr)); + if (!wcr) + return NULL; + wcr->sentry.base = gent.base; + wcr->sentry.size = gent.size; + wcr->sentry.type = MTRR_TYPE_WRCOMB; + wcr->added = FALSE; + + count = 3; + while (count-- && + (ret = ioctl(mtrr_fd, MTRRIOC_KILL_ENTRY, &(wcr->sentry))) < 0); + + if (ret >= 0) { + xf86DrvMsg(screenNum, from, + "Removed MMIO write-combining range " + "(0x%lx,0x%lx)\n", + (unsigned long) gent.base, (unsigned long) gent.size); + wcr->next = wcreturn; + wcreturn = wcr; + gent.regnum--; + } else { + free(wcr); + xf86DrvMsgVerb(screenNum, X_WARNING, 0, + "Failed to remove MMIO " + "write-combining range (0x%lx,0x%lx)\n", + gent.base, (unsigned long) gent.size); + } + } + return wcreturn; +} + + +static struct mtrr_wc_region * +mtrr_remove_offending(int screenNum, unsigned long base, unsigned long size, + MessageType from) +{ + struct mtrr_gentry gent; + struct mtrr_wc_region *wcreturn = NULL, **wcr; + + if (!mtrr_open(2)) + return NULL; + + wcr = &wcreturn; + for (gent.regnum = 0; + ioctl(mtrr_fd, MTRRIOC_GET_ENTRY, &gent) >= 0; gent.regnum++ ) { + if (gent.type == MTRR_TYPE_WRCOMB + && ((gent.base >= base && gent.base + gent.size < base + size) || + (gent.base > base && gent.base + gent.size <= base + size))) { + *wcr = mtrr_cull_wc_region(screenNum, gent.base, gent.size, from); + if (*wcr) gent.regnum--; + while(*wcr) { + wcr = &((*wcr)->next); + } + } + } + return wcreturn; +} + + +static struct mtrr_wc_region * +mtrr_add_wc_region(int screenNum, unsigned long base, unsigned long size, + MessageType from) +{ + struct mtrr_wc_region **wcr, *wcreturn, *curwcr; + + /* + * There can be only one.... + */ + + wcreturn = mtrr_remove_offending(screenNum, base, size, from); + wcr = &wcreturn; + while (*wcr) { + wcr = &((*wcr)->next); + } + + /* Linux 2.0 should not warn, unless the user explicitly asks for + WC. */ + + if (!mtrr_open(from == X_CONFIG ? 0 : 2)) + return wcreturn; + + *wcr = curwcr = malloc(sizeof(**wcr)); + if (!curwcr) + return wcreturn; + + curwcr->sentry.base = base; + curwcr->sentry.size = size; + curwcr->sentry.type = MTRR_TYPE_WRCOMB; + curwcr->added = TRUE; + curwcr->next = NULL; + +#if SPLIT_WC_REGIONS + /* + * Splits up the write-combining region if it is not aligned on a + * size boundary. + */ + + { + unsigned long lbase, d_size = 1; + unsigned long n_size = size; + unsigned long n_base = base; + + for (lbase = n_base, d_size = 1; !(lbase & 1); + lbase = lbase >> 1, d_size <<= 1); + while (d_size > n_size) + d_size = d_size >> 1; + DebugF("WC_BASE: 0x%lx WC_END: 0x%lx\n",base,base+d_size-1); + n_base += d_size; + n_size -= d_size; + if (n_size) { + xf86DrvMsgVerb(screenNum,X_INFO,3,"Splitting WC range: " + "base: 0x%lx, size: 0x%lx\n",base,size); + curwcr->next = mtrr_add_wc_region(screenNum, n_base, n_size,from); + } + curwcr->sentry.size = d_size; + } + + /*****************************************************************/ +#endif /* SPLIT_WC_REGIONS */ + + if (ioctl(mtrr_fd, MTRRIOC_ADD_ENTRY, &curwcr->sentry) >= 0) { + /* Avoid printing on every VT switch */ + if (xf86ServerIsInitialising()) { + xf86DrvMsg(screenNum, from, + "Write-combining range (0x%lx,0x%lx)\n", + base, size); + } + return wcreturn; + } + else { + *wcr = curwcr->next; + free(curwcr); + + /* Don't complain about the VGA region: MTRR fixed + regions aren't currently supported, but might be in + the future. */ + if ((unsigned long)base >= 0x100000) { + xf86DrvMsgVerb(screenNum, X_WARNING, 0, + "Failed to set up write-combining range " + "(0x%lx,0x%lx)\n", base, size); + } + return wcreturn; + } +} + +static void +mtrr_undo_wc_region(int screenNum, struct mtrr_wc_region *wcr) +{ + struct mtrr_wc_region *p, *prev; + + if (mtrr_fd >= 0) { + p = wcr; + while (p) { + if (p->added) + ioctl(mtrr_fd, MTRRIOC_DEL_ENTRY, &p->sentry); + prev = p; + p = p->next; + free(prev); + } + } +} + +static pointer +setWC(int screenNum, unsigned long base, unsigned long size, Bool enable, + MessageType from) +{ + if (enable) + return mtrr_add_wc_region(screenNum, base, size, from); + else + return mtrr_cull_wc_region(screenNum, base, size, from); +} + +static void +undoWC(int screenNum, pointer regioninfo) +{ + mtrr_undo_wc_region(screenNum, regioninfo); +} + +#endif /* HAS_MTRR_SUPPORT */ + +void +xf86OSInitVidMem(VidMemInfoPtr pVidMem) +{ + pVidMem->linearSupported = TRUE; +#ifdef __alpha__ + if (axpSystem == -1) { + axpSystem = lnxGetAXP(); + if ((needSparse = (_bus_base_sparse() > 0))) { + hae_thresh = xf86AXPParams[axpSystem].hae_thresh; + hae_mask = xf86AXPParams[axpSystem].hae_mask; + } + bus_base = _bus_base(); + } + if (needSparse) { + xf86Msg(X_INFO,"Machine needs sparse mapping\n"); + pVidMem->mapMem = mapVidMemSparse; + pVidMem->unmapMem = unmapVidMemSparse; + } else { + xf86Msg(X_INFO,"Machine type has 8/16 bit access\n"); + pVidMem->mapMem = mapVidMem; + pVidMem->unmapMem = unmapVidMem; + } +#else + pVidMem->mapMem = mapVidMem; + pVidMem->unmapMem = unmapVidMem; +#endif /* __alpha__ */ + + +#ifdef HAS_MTRR_SUPPORT + pVidMem->setWC = setWC; + pVidMem->undoWC = undoWC; +#endif + pVidMem->initialised = TRUE; +} + +#ifdef __sparc__ +/* Basically, you simply cannot do this on Sparc. You have to do something portable + * like use /dev/fb* or mmap() on /proc/bus/pci/X/Y nodes. -DaveM + */ +static pointer mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags) +{ + return NULL; +} +#else +static pointer +mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags) +{ + pointer base; + int fd; + int mapflags = MAP_SHARED; + int prot; + memType realBase, alignOff; + + realBase = Base & ~(getpagesize() - 1); + alignOff = Base - realBase; + DebugF("base: %lx, realBase: %lx, alignOff: %lx \n", + Base,realBase,alignOff); + +#if defined(__ia64__) || defined(__arm__) || defined(__s390__) +#ifndef MAP_WRITECOMBINED +#define MAP_WRITECOMBINED 0x00010000 +#endif +#ifndef MAP_NONCACHED +#define MAP_NONCACHED 0x00020000 +#endif + if(flags & VIDMEM_FRAMEBUFFER) + mapflags |= MAP_WRITECOMBINED; + else + mapflags |= MAP_NONCACHED; +#endif + +#if 0 + /* this will disappear when people upgrade their kernels */ + fd = open(DEV_MEM, + ((flags & VIDMEM_READONLY) ? O_RDONLY : O_RDWR) | O_SYNC); +#else + fd = open(DEV_MEM, (flags & VIDMEM_READONLY) ? O_RDONLY : O_RDWR); +#endif + if (fd < 0) + { + FatalError("xf86MapVidMem: failed to open " DEV_MEM " (%s)\n", + strerror(errno)); + } + + if (flags & VIDMEM_READONLY) + prot = PROT_READ; + else + prot = PROT_READ | PROT_WRITE; + + /* This requires linux-0.99.pl10 or above */ + base = mmap((caddr_t)0, Size + alignOff, prot, mapflags, fd, + (off_t)realBase + BUS_BASE); + close(fd); + if (base == MAP_FAILED) { + FatalError("xf86MapVidMem: Could not mmap framebuffer" + " (0x%08lx,0x%lx) (%s)\n", Base, Size, + strerror(errno)); + } + DebugF("base: %lx aligned base: %lx\n",base, base + alignOff); + return (char *)base + alignOff; +} +#endif /* !(__sparc__) */ + +static void +unmapVidMem(int ScreenNum, pointer Base, unsigned long Size) +{ + memType alignOff = (memType)Base + - ((memType)Base & ~(getpagesize() - 1)); + + DebugF("alignment offset: %lx\n",alignOff); + munmap((caddr_t)((memType)Base - alignOff), (Size + alignOff)); +} + + +/***************************************************************************/ +/* I/O Permissions section */ +/***************************************************************************/ + +#if defined(__powerpc__) +volatile unsigned char *ioBase = NULL; + +#ifndef __NR_pciconfig_iobase +#define __NR_pciconfig_iobase 200 +#endif + +#endif + +Bool +xf86EnableIO(void) +{ +#if defined(__powerpc__) + int fd; + unsigned int ioBase_phys; +#endif + + if (ExtendedEnabled) + return TRUE; + +#if defined(__powerpc__) + ioBase_phys = syscall(__NR_pciconfig_iobase, 2, 0, 0); + + fd = open("/dev/mem", O_RDWR); + if (ioBase == NULL) { + ioBase = (volatile unsigned char *)mmap(0, 0x20000, + PROT_READ | PROT_WRITE, MAP_SHARED, fd, + ioBase_phys); +/* Should this be fatal or just a warning? */ +#if 0 + if (ioBase == MAP_FAILED) { + xf86Msg(X_WARNING, + "xf86EnableIOPorts: Failed to map iobase (%s)\n", + strerror(errno)); + return FALSE; + } +#endif + } + close(fd); +#elif !defined(__mc68000__) && !defined(__sparc__) && !defined(__mips__) && !defined(__sh__) && !defined(__hppa__) && !defined(__s390__) && !defined(__arm__) && !defined(__m32r__) + if (ioperm(0, 1024, 1) || iopl(3)) { + if (errno == ENODEV) + ErrorF("xf86EnableIOPorts: no I/O ports found\n"); + else + FatalError("xf86EnableIOPorts: failed to set IOPL" + " for I/O (%s)\n", strerror(errno)); + return FALSE; + } +# if !defined(__alpha__) + ioperm(0x40,4,0); /* trap access to the timer chip */ + ioperm(0x60,4,0); /* trap access to the keyboard controller */ +# endif +#endif + ExtendedEnabled = TRUE; + + return TRUE; +} + +void +xf86DisableIO(void) +{ + if (!ExtendedEnabled) + return; +#if defined(__powerpc__) + munmap(ioBase, 0x20000); + ioBase = NULL; +#elif !defined(__mc68000__) && !defined(__sparc__) && !defined(__mips__) && !defined(__sh__) && !defined(__hppa__) && !defined(__arm__) && !defined(__s390__) && !defined(__m32r__) + iopl(0); + ioperm(0, 1024, 0); +#endif + ExtendedEnabled = FALSE; + + return; +} + +#if defined (__alpha__) + +#define vuip volatile unsigned int * + +extern int readDense8(pointer Base, register unsigned long Offset); +extern int readDense16(pointer Base, register unsigned long Offset); +extern int readDense32(pointer Base, register unsigned long Offset); +extern void +writeDenseNB8(int Value, pointer Base, register unsigned long Offset); +extern void +writeDenseNB16(int Value, pointer Base, register unsigned long Offset); +extern void +writeDenseNB32(int Value, pointer Base, register unsigned long Offset); +extern void +writeDense8(int Value, pointer Base, register unsigned long Offset); +extern void +writeDense16(int Value, pointer Base, register unsigned long Offset); +extern void +writeDense32(int Value, pointer Base, register unsigned long Offset); + +static int readSparse8(pointer Base, register unsigned long Offset); +static int readSparse16(pointer Base, register unsigned long Offset); +static int readSparse32(pointer Base, register unsigned long Offset); +static void +writeSparseNB8(int Value, pointer Base, register unsigned long Offset); +static void +writeSparseNB16(int Value, pointer Base, register unsigned long Offset); +static void +writeSparseNB32(int Value, pointer Base, register unsigned long Offset); +static void +writeSparse8(int Value, pointer Base, register unsigned long Offset); +static void +writeSparse16(int Value, pointer Base, register unsigned long Offset); +static void +writeSparse32(int Value, pointer Base, register unsigned long Offset); + +#define DENSE_BASE 0x2ff00000000UL +#define SPARSE_BASE 0x30000000000UL + +static unsigned long msb_set = 0; + +static pointer +mapVidMemSparse(int ScreenNum, unsigned long Base, unsigned long Size, int flags) +{ + int fd, prot; + unsigned long ret, rets = 0; + + static Bool was_here = FALSE; + + if (!was_here) { + was_here = TRUE; + + xf86WriteMmio8 = writeSparse8; + xf86WriteMmio16 = writeSparse16; + xf86WriteMmio32 = writeSparse32; + xf86WriteMmioNB8 = writeSparseNB8; + xf86WriteMmioNB16 = writeSparseNB16; + xf86WriteMmioNB32 = writeSparseNB32; + xf86ReadMmio8 = readSparse8; + xf86ReadMmio16 = readSparse16; + xf86ReadMmio32 = readSparse32; + } + + fd = open(DEV_MEM, (flags & VIDMEM_READONLY) ? O_RDONLY : O_RDWR); + if (fd < 0) { + FatalError("xf86MapVidMem: failed to open " DEV_MEM " (%s)\n", + strerror(errno)); + } + +#if 0 + xf86Msg(X_INFO,"mapVidMemSparse: try Base 0x%lx size 0x%lx flags 0x%x\n", + Base, Size, flags); +#endif + + if (flags & VIDMEM_READONLY) + prot = PROT_READ; + else + prot = PROT_READ | PROT_WRITE; + + /* This requirers linux-0.99.pl10 or above */ + + /* + * Always do DENSE mmap, since read32/write32 currently require it. + */ + ret = (unsigned long)mmap((caddr_t)(DENSE_BASE + Base), Size, + prot, MAP_SHARED, fd, + (off_t) (bus_base + Base)); + + /* + * Do SPARSE mmap only when MMIO and not MMIO_32BIT, or FRAMEBUFFER + * and SPARSE (which should require the use of read/write macros). + * + * By not SPARSE mmapping an 8MB framebuffer, we can save approx. 256K + * bytes worth of pagetable (32 pages). + */ + if (((flags & VIDMEM_MMIO) && !(flags & VIDMEM_MMIO_32BIT)) || + ((flags & VIDMEM_FRAMEBUFFER) && (flags & VIDMEM_SPARSE))) + { + rets = (unsigned long)mmap((caddr_t)(SPARSE_BASE + (Base << 5)), + Size << 5, prot, MAP_SHARED, fd, + (off_t) _bus_base_sparse() + (Base << 5)); + } + + close(fd); + + if (ret == (unsigned long)MAP_FAILED) { + FatalError("xf86MapVidMemSparse: Could not (dense) mmap fb (%s)\n", + strerror(errno)); + } + + if (((flags & VIDMEM_MMIO) && !(flags & VIDMEM_MMIO_32BIT)) || + ((flags & VIDMEM_FRAMEBUFFER) && (flags & VIDMEM_SPARSE))) + { + if (rets == (unsigned long)MAP_FAILED || + rets != (SPARSE_BASE + (Base << 5))) + { + FatalError("mapVidMemSparse: Could not (sparse) mmap fb (%s)\n", + strerror(errno)); + } + } + +#if 1 + if (rets) + xf86Msg(X_INFO,"mapVidMemSparse: mapped Base 0x%lx size 0x%lx" + " to DENSE at 0x%lx and SPARSE at 0x%lx\n", + Base, Size, ret, rets); + else + xf86Msg(X_INFO,"mapVidMemSparse: mapped Base 0x%lx size 0x%lx" + " to DENSE only at 0x%lx\n", + Base, Size, ret); + +#endif + return (pointer) ret; +} + +static void +unmapVidMemSparse(int ScreenNum, pointer Base, unsigned long Size) +{ + unsigned long Offset = (unsigned long)Base - DENSE_BASE; +#if 1 + xf86Msg(X_INFO,"unmapVidMemSparse: unmapping Base 0x%lx Size 0x%lx\n", + Base, Size); +#endif + /* Unmap DENSE always. */ + munmap((caddr_t)Base, Size); + + /* Unmap SPARSE always, and ignore error in case we did not map it. */ + munmap((caddr_t)(SPARSE_BASE + (Offset << 5)), Size << 5); +} + +static int +readSparse8(pointer Base, register unsigned long Offset) +{ + register unsigned long result, shift; + register unsigned long msb; + + mem_barrier(); + Offset += (unsigned long)Base - DENSE_BASE; + shift = (Offset & 0x3) << 3; + if (Offset >= (hae_thresh)) { + msb = Offset & hae_mask; + Offset -= msb; + if (msb_set != msb) { + sethae(msb); + msb_set = msb; + } + } + + mem_barrier(); + result = *(vuip) (SPARSE_BASE + (Offset << 5)); + result >>= shift; + return 0xffUL & result; +} + +static int +readSparse16(pointer Base, register unsigned long Offset) +{ + register unsigned long result, shift; + register unsigned long msb; + + mem_barrier(); + Offset += (unsigned long)Base - DENSE_BASE; + shift = (Offset & 0x2) << 3; + if (Offset >= hae_thresh) { + msb = Offset & hae_mask; + Offset -= msb; + if (msb_set != msb) { + sethae(msb); + msb_set = msb; + } + } + + mem_barrier(); + result = *(vuip)(SPARSE_BASE + (Offset<<5) + (1<<(5-2))); + result >>= shift; + return 0xffffUL & result; +} + +static int +readSparse32(pointer Base, register unsigned long Offset) +{ + /* NOTE: this is really using DENSE. */ + mem_barrier(); + return *(vuip)((unsigned long)Base+(Offset)); +} + +static void +writeSparse8(int Value, pointer Base, register unsigned long Offset) +{ + register unsigned long msb; + register unsigned int b = Value & 0xffU; + + write_mem_barrier(); + Offset += (unsigned long)Base - DENSE_BASE; + if (Offset >= hae_thresh) { + msb = Offset & hae_mask; + Offset -= msb; + if (msb_set != msb) { + sethae(msb); + msb_set = msb; + } + } + + write_mem_barrier(); + *(vuip) (SPARSE_BASE + (Offset << 5)) = b * 0x01010101; +} + +static void +writeSparse16(int Value, pointer Base, register unsigned long Offset) +{ + register unsigned long msb; + register unsigned int w = Value & 0xffffU; + + write_mem_barrier(); + Offset += (unsigned long)Base - DENSE_BASE; + if (Offset >= hae_thresh) { + msb = Offset & hae_mask; + Offset -= msb; + if (msb_set != msb) { + sethae(msb); + msb_set = msb; + } + } + + write_mem_barrier(); + *(vuip)(SPARSE_BASE + (Offset<<5) + (1<<(5-2))) = w * 0x00010001; +} + +static void +writeSparse32(int Value, pointer Base, register unsigned long Offset) +{ + /* NOTE: this is really using DENSE. */ + write_mem_barrier(); + *(vuip)((unsigned long)Base + (Offset)) = Value; + return; +} + +static void +writeSparseNB8(int Value, pointer Base, register unsigned long Offset) +{ + register unsigned long msb; + register unsigned int b = Value & 0xffU; + + Offset += (unsigned long)Base - DENSE_BASE; + if (Offset >= hae_thresh) { + msb = Offset & hae_mask; + Offset -= msb; + if (msb_set != msb) { + sethae(msb); + msb_set = msb; + } + } + *(vuip) (SPARSE_BASE + (Offset << 5)) = b * 0x01010101; +} + +static void +writeSparseNB16(int Value, pointer Base, register unsigned long Offset) +{ + register unsigned long msb; + register unsigned int w = Value & 0xffffU; + + Offset += (unsigned long)Base - DENSE_BASE; + if (Offset >= hae_thresh) { + msb = Offset & hae_mask; + Offset -= msb; + if (msb_set != msb) { + sethae(msb); + msb_set = msb; + } + } + *(vuip)(SPARSE_BASE+(Offset<<5)+(1<<(5-2))) = w * 0x00010001; +} + +static void +writeSparseNB32(int Value, pointer Base, register unsigned long Offset) +{ + /* NOTE: this is really using DENSE. */ + *(vuip)((unsigned long)Base + (Offset)) = Value; + return; +} + +void (*xf86WriteMmio8)(int Value, pointer Base, unsigned long Offset) + = writeDense8; +void (*xf86WriteMmio16)(int Value, pointer Base, unsigned long Offset) + = writeDense16; +void (*xf86WriteMmio32)(int Value, pointer Base, unsigned long Offset) + = writeDense32; +void (*xf86WriteMmioNB8)(int Value, pointer Base, unsigned long Offset) + = writeDenseNB8; +void (*xf86WriteMmioNB16)(int Value, pointer Base, unsigned long Offset) + = writeDenseNB16; +void (*xf86WriteMmioNB32)(int Value, pointer Base, unsigned long Offset) + = writeDenseNB32; +int (*xf86ReadMmio8)(pointer Base, unsigned long Offset) + = readDense8; +int (*xf86ReadMmio16)(pointer Base, unsigned long Offset) + = readDense16; +int (*xf86ReadMmio32)(pointer Base, unsigned long Offset) + = readDense32; + +#endif /* __alpha__ */ diff --git a/xorg-server/hw/xfree86/os-support/shared/posix_tty.c b/xorg-server/hw/xfree86/os-support/shared/posix_tty.c index da57939cf..7e2c4a181 100644 --- a/xorg-server/hw/xfree86/os-support/shared/posix_tty.c +++ b/xorg-server/hw/xfree86/os-support/shared/posix_tty.c @@ -1,655 +1,655 @@ -/* - * Copyright 1993-2003 by The XFree86 Project, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of the XFree86 Project shall - * not be used in advertising or otherwise to promote the sale, use or other - * dealings in this Software without prior written authorization from the - * XFree86 Project. - */ -/* - * - * Copyright (c) 1997 Metro Link Incorporated - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of the Metro Link shall not be - * used in advertising or otherwise to promote the sale, use or other dealings - * in this Software without prior written authorization from Metro Link. - * - */ - -#ifdef HAVE_XORG_CONFIG_H -#include -#endif - -#include -#include "xf86.h" -#include "xf86Priv.h" -#include "xf86_OSlib.h" - -static int -GetBaud (int baudrate) -{ -#ifdef B300 - if (baudrate == 300) - return B300; -#endif -#ifdef B1200 - if (baudrate == 1200) - return B1200; -#endif -#ifdef B2400 - if (baudrate == 2400) - return B2400; -#endif -#ifdef B4800 - if (baudrate == 4800) - return B4800; -#endif -#ifdef B9600 - if (baudrate == 9600) - return B9600; -#endif -#ifdef B19200 - if (baudrate == 19200) - return B19200; -#endif -#ifdef B38400 - if (baudrate == 38400) - return B38400; -#endif -#ifdef B57600 - if (baudrate == 57600) - return B57600; -#endif -#ifdef B115200 - if (baudrate == 115200) - return B115200; -#endif -#ifdef B230400 - if (baudrate == 230400) - return B230400; -#endif -#ifdef B460800 - if (baudrate == 460800) - return B460800; -#endif - return (0); -} - -int -xf86OpenSerial (pointer options) -{ - struct termios t; - int fd, i; - char *dev; - - dev = xf86SetStrOption (options, "Device", NULL); - if (!dev) - { - xf86Msg (X_ERROR, "xf86OpenSerial: No Device specified.\n"); - return (-1); - } - - SYSCALL (fd = open (dev, O_RDWR | O_NONBLOCK)); - if (fd == -1) - { - xf86Msg (X_ERROR, - "xf86OpenSerial: Cannot open device %s\n\t%s.\n", - dev, strerror (errno)); - xfree(dev); - return (-1); - } - - if (!isatty (fd)) - { - /* Allow non-tty devices to be opened. */ - xfree(dev); - return (fd); - } - - /* set up default port parameters */ - SYSCALL (tcgetattr (fd, &t)); - t.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR\ - |IGNCR|ICRNL|IXON); - t.c_oflag &= ~OPOST; - t.c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); - t.c_cflag &= ~(CSIZE|PARENB); - t.c_cflag |= CS8|CLOCAL; - - cfsetispeed (&t, B9600); - cfsetospeed (&t, B9600); - t.c_cc[VMIN] = 1; - t.c_cc[VTIME] = 0; - - SYSCALL (tcsetattr (fd, TCSANOW, &t)); - - if (xf86SetSerial (fd, options) == -1) - { - SYSCALL (close (fd)); - xfree(dev); - return (-1); - } - - SYSCALL (i = fcntl (fd, F_GETFL, 0)); - if (i == -1) - { - SYSCALL (close (fd)); - xfree(dev); - return (-1); - } - i &= ~O_NONBLOCK; - SYSCALL (i = fcntl (fd, F_SETFL, i)); - if (i == -1) - { - SYSCALL (close (fd)); - xfree(dev); - return (-1); - } - xfree(dev); - return (fd); -} - -int -xf86SetSerial (int fd, pointer options) -{ - struct termios t; - int val; - const char *s; - int baud, r; - - if (fd < 0) - return -1; - - /* Don't try to set parameters for non-tty devices. */ - if (!isatty(fd)) - return 0; - - SYSCALL (tcgetattr (fd, &t)); - - if ((val = xf86SetIntOption (options, "BaudRate", 0))) - { - if ((baud = GetBaud (val))) - { - cfsetispeed (&t, baud); - cfsetospeed (&t, baud); - } - else - { - xf86Msg (X_ERROR, - "Invalid Option BaudRate value: %d\n", val); - return (-1); - } - } - - if ((val = xf86SetIntOption (options, "StopBits", 0))) - { - switch (val) - { - case 1: - t.c_cflag &= ~(CSTOPB); - break; - case 2: - t.c_cflag |= CSTOPB; - break; - default: - xf86Msg (X_ERROR, - "Invalid Option StopBits value: %d\n", val); - return (-1); - break; - } - } - - if ((val = xf86SetIntOption (options, "DataBits", 0))) - { - switch (val) - { - case 5: - t.c_cflag &= ~(CSIZE); - t.c_cflag |= CS5; - break; - case 6: - t.c_cflag &= ~(CSIZE); - t.c_cflag |= CS6; - break; - case 7: - t.c_cflag &= ~(CSIZE); - t.c_cflag |= CS7; - break; - case 8: - t.c_cflag &= ~(CSIZE); - t.c_cflag |= CS8; - break; - default: - xf86Msg (X_ERROR, - "Invalid Option DataBits value: %d\n", val); - return (-1); - break; - } - } - - if ((s = xf86SetStrOption (options, "Parity", NULL))) - { - if (xf86NameCmp (s, "Odd") == 0) - { - t.c_cflag |= PARENB | PARODD; - } - else if (xf86NameCmp (s, "Even") == 0) - { - t.c_cflag |= PARENB; - t.c_cflag &= ~(PARODD); - } - else if (xf86NameCmp (s, "None") == 0) - { - t.c_cflag &= ~(PARENB); - } - else - { - xf86Msg (X_ERROR, "Invalid Option Parity value: %s\n", - s); - return (-1); - } - } - - if ((val = xf86SetIntOption (options, "Vmin", -1)) != -1) - { - t.c_cc[VMIN] = val; - } - if ((val = xf86SetIntOption (options, "Vtime", -1)) != -1) - { - t.c_cc[VTIME] = val; - } - - if ((s = xf86SetStrOption (options, "FlowControl", NULL))) - { - xf86MarkOptionUsedByName (options, "FlowControl"); - if (xf86NameCmp (s, "Xoff") == 0) - { - t.c_iflag |= IXOFF; - } - else if (xf86NameCmp (s, "Xon") == 0) - { - t.c_iflag |= IXON; - } - else if (xf86NameCmp (s, "XonXoff") == 0) - { - t.c_iflag |= IXON|IXOFF; - } - else if (xf86NameCmp (s, "None") == 0) - { - t.c_iflag &= ~(IXON | IXOFF); - } - else - { - xf86Msg (X_ERROR, - "Invalid Option FlowControl value: %s\n", s); - return (-1); - } - } - - if ((xf86SetBoolOption (options, "ClearDTR", FALSE))) - { -#ifdef CLEARDTR_SUPPORT -# if defined(TIOCMBIC) - val = TIOCM_DTR; - SYSCALL (ioctl(fd, TIOCMBIC, &val)); -# else - SYSCALL (ioctl(fd, TIOCCDTR, NULL)); -# endif -#else - xf86Msg (X_WARNING, - "Option ClearDTR not supported on this OS\n"); - return (-1); -#endif - xf86MarkOptionUsedByName (options, "ClearDTR"); - } - - if ((xf86SetBoolOption (options, "ClearRTS", FALSE))) - { - xf86Msg (X_WARNING, - "Option ClearRTS not supported on this OS\n"); - return (-1); - xf86MarkOptionUsedByName (options, "ClearRTS"); - } - - SYSCALL (r = tcsetattr (fd, TCSANOW, &t)); - return (r); -} - -int -xf86SetSerialSpeed (int fd, int speed) -{ - struct termios t; - int baud, r; - - if (fd < 0) - return -1; - - /* Don't try to set parameters for non-tty devices. */ - if (!isatty(fd)) - return 0; - - SYSCALL (tcgetattr (fd, &t)); - - if ((baud = GetBaud (speed))) - { - cfsetispeed (&t, baud); - cfsetospeed (&t, baud); - } - else - { - xf86Msg (X_ERROR, - "Invalid Option BaudRate value: %d\n", speed); - return (-1); - } - - SYSCALL (r = tcsetattr (fd, TCSANOW, &t)); - return (r); -} - -int -xf86ReadSerial (int fd, void *buf, int count) -{ - int r; - int i; - - SYSCALL (r = read (fd, buf, count)); - DebugF("ReadingSerial: 0x%x", - (unsigned char)*(((unsigned char *)buf))); - for (i = 1; i < r; i++) - DebugF(", 0x%x",(unsigned char)*(((unsigned char *)buf) + i)); - DebugF("\n"); - return (r); -} - -int -xf86WriteSerial (int fd, const void *buf, int count) -{ - int r; - int i; - - DebugF("WritingSerial: 0x%x",(unsigned char)*(((unsigned char *)buf))); - for (i = 1; i < count; i++) - ErrorF(", 0x%x",(unsigned char)*(((unsigned char *)buf) + i)); - DebugF("\n"); - SYSCALL (r = write (fd, buf, count)); - return (r); -} - -int -xf86CloseSerial (int fd) -{ - int r; - - SYSCALL (r = close (fd)); - return (r); -} - -int -xf86WaitForInput (int fd, int timeout) -{ - fd_set readfds; - struct timeval to; - int r; - - FD_ZERO(&readfds); - - if (fd >= 0) { - FD_SET(fd, &readfds); - } - - to.tv_sec = timeout / 1000000; - to.tv_usec = timeout % 1000000; - - if (fd >= 0) { - SYSCALL (r = select (FD_SETSIZE, &readfds, NULL, NULL, &to)); - } - else { - SYSCALL (r = select (FD_SETSIZE, NULL, NULL, NULL, &to)); - } - xf86ErrorFVerb (9,"select returned %d\n", r); - return (r); -} - -int -xf86SerialSendBreak (int fd, int duration) -{ - int r; - - SYSCALL (r = tcsendbreak (fd, duration)); - return (r); - -} - -int -xf86FlushInput(int fd) -{ - fd_set fds; - struct timeval timeout; - char c[4]; - - DebugF("FlushingSerial\n"); - if (tcflush(fd, TCIFLUSH) == 0) - return 0; - - timeout.tv_sec = 0; - timeout.tv_usec = 0; - FD_ZERO(&fds); - FD_SET(fd, &fds); - while (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) > 0) { - if (read(fd, &c, sizeof(c)) < 1) - return 0; - FD_ZERO(&fds); - FD_SET(fd, &fds); - } - return 0; -} - -static struct states { - int xf; - int os; -} modemStates[] = { -#ifdef TIOCM_LE - { XF86_M_LE, TIOCM_LE }, -#endif -#ifdef TIOCM_DTR - { XF86_M_DTR, TIOCM_DTR }, -#endif -#ifdef TIOCM_RTS - { XF86_M_RTS, TIOCM_RTS }, -#endif -#ifdef TIOCM_ST - { XF86_M_ST, TIOCM_ST }, -#endif -#ifdef TIOCM_SR - { XF86_M_SR, TIOCM_SR }, -#endif -#ifdef TIOCM_CTS - { XF86_M_CTS, TIOCM_CTS }, -#endif -#ifdef TIOCM_CAR - { XF86_M_CAR, TIOCM_CAR }, -#elif defined(TIOCM_CD) - { XF86_M_CAR, TIOCM_CD }, -#endif -#ifdef TIOCM_RNG - { XF86_M_RNG, TIOCM_RNG }, -#elif defined(TIOCM_RI) - { XF86_M_CAR, TIOCM_RI }, -#endif -#ifdef TIOCM_DSR - { XF86_M_DSR, TIOCM_DSR }, -#endif -}; - -static int numStates = sizeof(modemStates) / sizeof(modemStates[0]); - -static int -xf2osState(int state) -{ - int i; - int ret = 0; - - for (i = 0; i < numStates; i++) - if (state & modemStates[i].xf) - ret |= modemStates[i].os; - return ret; -} - -static int -os2xfState(int state) -{ - int i; - int ret = 0; - - for (i = 0; i < numStates; i++) - if (state & modemStates[i].os) - ret |= modemStates[i].xf; - return ret; -} - -static int -getOsStateMask(void) -{ - int i; - int ret = 0; - for (i = 0; i < numStates; i++) - ret |= modemStates[i].os; - return ret; -} - -static int osStateMask = 0; - -int -xf86SetSerialModemState(int fd, int state) -{ - int ret; - int s; - - if (fd < 0) - return -1; - - /* Don't try to set parameters for non-tty devices. */ - if (!isatty(fd)) - return 0; - -#ifndef TIOCMGET - return -1; -#else - if (!osStateMask) - osStateMask = getOsStateMask(); - - state = xf2osState(state); - SYSCALL((ret = ioctl(fd, TIOCMGET, &s))); - if (ret < 0) - return -1; - s &= ~osStateMask; - s |= state; - SYSCALL((ret = ioctl(fd, TIOCMSET, &s))); - if (ret < 0) - return -1; - else - return 0; -#endif -} - -int -xf86GetSerialModemState(int fd) -{ - int ret; - int s; - - if (fd < 0) - return -1; - - /* Don't try to set parameters for non-tty devices. */ - if (!isatty(fd)) - return 0; - -#ifndef TIOCMGET - return -1; -#else - SYSCALL((ret = ioctl(fd, TIOCMGET, &s))); - if (ret < 0) - return -1; - return os2xfState(s); -#endif -} - -int -xf86SerialModemSetBits(int fd, int bits) -{ - int ret; - int s; - - if (fd < 0) - return -1; - - /* Don't try to set parameters for non-tty devices. */ - if (!isatty(fd)) - return 0; - -#ifndef TIOCMGET - return -1; -#else - s = xf2osState(bits); - SYSCALL((ret = ioctl(fd, TIOCMBIS, &s))); - return ret; -#endif -} - -int -xf86SerialModemClearBits(int fd, int bits) -{ - int ret; - int s; - - if (fd < 0) - return -1; - - /* Don't try to set parameters for non-tty devices. */ - if (!isatty(fd)) - return 0; - -#ifndef TIOCMGET - return -1; -#else - s = xf2osState(bits); - SYSCALL((ret = ioctl(fd, TIOCMBIC, &s))); - return ret; -#endif -} +/* + * Copyright 1993-2003 by The XFree86 Project, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF + * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Except as contained in this notice, the name of the XFree86 Project shall + * not be used in advertising or otherwise to promote the sale, use or other + * dealings in this Software without prior written authorization from the + * XFree86 Project. + */ +/* + * + * Copyright (c) 1997 Metro Link Incorporated + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF + * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Except as contained in this notice, the name of the Metro Link shall not be + * used in advertising or otherwise to promote the sale, use or other dealings + * in this Software without prior written authorization from Metro Link. + * + */ + +#ifdef HAVE_XORG_CONFIG_H +#include +#endif + +#include +#include "xf86.h" +#include "xf86Priv.h" +#include "xf86_OSlib.h" + +static int +GetBaud (int baudrate) +{ +#ifdef B300 + if (baudrate == 300) + return B300; +#endif +#ifdef B1200 + if (baudrate == 1200) + return B1200; +#endif +#ifdef B2400 + if (baudrate == 2400) + return B2400; +#endif +#ifdef B4800 + if (baudrate == 4800) + return B4800; +#endif +#ifdef B9600 + if (baudrate == 9600) + return B9600; +#endif +#ifdef B19200 + if (baudrate == 19200) + return B19200; +#endif +#ifdef B38400 + if (baudrate == 38400) + return B38400; +#endif +#ifdef B57600 + if (baudrate == 57600) + return B57600; +#endif +#ifdef B115200 + if (baudrate == 115200) + return B115200; +#endif +#ifdef B230400 + if (baudrate == 230400) + return B230400; +#endif +#ifdef B460800 + if (baudrate == 460800) + return B460800; +#endif + return (0); +} + +int +xf86OpenSerial (pointer options) +{ + struct termios t; + int fd, i; + char *dev; + + dev = xf86SetStrOption (options, "Device", NULL); + if (!dev) + { + xf86Msg (X_ERROR, "xf86OpenSerial: No Device specified.\n"); + return (-1); + } + + SYSCALL (fd = open (dev, O_RDWR | O_NONBLOCK)); + if (fd == -1) + { + xf86Msg (X_ERROR, + "xf86OpenSerial: Cannot open device %s\n\t%s.\n", + dev, strerror (errno)); + free(dev); + return (-1); + } + + if (!isatty (fd)) + { + /* Allow non-tty devices to be opened. */ + free(dev); + return (fd); + } + + /* set up default port parameters */ + SYSCALL (tcgetattr (fd, &t)); + t.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR\ + |IGNCR|ICRNL|IXON); + t.c_oflag &= ~OPOST; + t.c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); + t.c_cflag &= ~(CSIZE|PARENB); + t.c_cflag |= CS8|CLOCAL; + + cfsetispeed (&t, B9600); + cfsetospeed (&t, B9600); + t.c_cc[VMIN] = 1; + t.c_cc[VTIME] = 0; + + SYSCALL (tcsetattr (fd, TCSANOW, &t)); + + if (xf86SetSerial (fd, options) == -1) + { + SYSCALL (close (fd)); + free(dev); + return (-1); + } + + SYSCALL (i = fcntl (fd, F_GETFL, 0)); + if (i == -1) + { + SYSCALL (close (fd)); + free(dev); + return (-1); + } + i &= ~O_NONBLOCK; + SYSCALL (i = fcntl (fd, F_SETFL, i)); + if (i == -1) + { + SYSCALL (close (fd)); + free(dev); + return (-1); + } + free(dev); + return (fd); +} + +int +xf86SetSerial (int fd, pointer options) +{ + struct termios t; + int val; + const char *s; + int baud, r; + + if (fd < 0) + return -1; + + /* Don't try to set parameters for non-tty devices. */ + if (!isatty(fd)) + return 0; + + SYSCALL (tcgetattr (fd, &t)); + + if ((val = xf86SetIntOption (options, "BaudRate", 0))) + { + if ((baud = GetBaud (val))) + { + cfsetispeed (&t, baud); + cfsetospeed (&t, baud); + } + else + { + xf86Msg (X_ERROR, + "Invalid Option BaudRate value: %d\n", val); + return (-1); + } + } + + if ((val = xf86SetIntOption (options, "StopBits", 0))) + { + switch (val) + { + case 1: + t.c_cflag &= ~(CSTOPB); + break; + case 2: + t.c_cflag |= CSTOPB; + break; + default: + xf86Msg (X_ERROR, + "Invalid Option StopBits value: %d\n", val); + return (-1); + break; + } + } + + if ((val = xf86SetIntOption (options, "DataBits", 0))) + { + switch (val) + { + case 5: + t.c_cflag &= ~(CSIZE); + t.c_cflag |= CS5; + break; + case 6: + t.c_cflag &= ~(CSIZE); + t.c_cflag |= CS6; + break; + case 7: + t.c_cflag &= ~(CSIZE); + t.c_cflag |= CS7; + break; + case 8: + t.c_cflag &= ~(CSIZE); + t.c_cflag |= CS8; + break; + default: + xf86Msg (X_ERROR, + "Invalid Option DataBits value: %d\n", val); + return (-1); + break; + } + } + + if ((s = xf86SetStrOption (options, "Parity", NULL))) + { + if (xf86NameCmp (s, "Odd") == 0) + { + t.c_cflag |= PARENB | PARODD; + } + else if (xf86NameCmp (s, "Even") == 0) + { + t.c_cflag |= PARENB; + t.c_cflag &= ~(PARODD); + } + else if (xf86NameCmp (s, "None") == 0) + { + t.c_cflag &= ~(PARENB); + } + else + { + xf86Msg (X_ERROR, "Invalid Option Parity value: %s\n", + s); + return (-1); + } + } + + if ((val = xf86SetIntOption (options, "Vmin", -1)) != -1) + { + t.c_cc[VMIN] = val; + } + if ((val = xf86SetIntOption (options, "Vtime", -1)) != -1) + { + t.c_cc[VTIME] = val; + } + + if ((s = xf86SetStrOption (options, "FlowControl", NULL))) + { + xf86MarkOptionUsedByName (options, "FlowControl"); + if (xf86NameCmp (s, "Xoff") == 0) + { + t.c_iflag |= IXOFF; + } + else if (xf86NameCmp (s, "Xon") == 0) + { + t.c_iflag |= IXON; + } + else if (xf86NameCmp (s, "XonXoff") == 0) + { + t.c_iflag |= IXON|IXOFF; + } + else if (xf86NameCmp (s, "None") == 0) + { + t.c_iflag &= ~(IXON | IXOFF); + } + else + { + xf86Msg (X_ERROR, + "Invalid Option FlowControl value: %s\n", s); + return (-1); + } + } + + if ((xf86SetBoolOption (options, "ClearDTR", FALSE))) + { +#ifdef CLEARDTR_SUPPORT +# if defined(TIOCMBIC) + val = TIOCM_DTR; + SYSCALL (ioctl(fd, TIOCMBIC, &val)); +# else + SYSCALL (ioctl(fd, TIOCCDTR, NULL)); +# endif +#else + xf86Msg (X_WARNING, + "Option ClearDTR not supported on this OS\n"); + return (-1); +#endif + xf86MarkOptionUsedByName (options, "ClearDTR"); + } + + if ((xf86SetBoolOption (options, "ClearRTS", FALSE))) + { + xf86Msg (X_WARNING, + "Option ClearRTS not supported on this OS\n"); + return (-1); + xf86MarkOptionUsedByName (options, "ClearRTS"); + } + + SYSCALL (r = tcsetattr (fd, TCSANOW, &t)); + return (r); +} + +int +xf86SetSerialSpeed (int fd, int speed) +{ + struct termios t; + int baud, r; + + if (fd < 0) + return -1; + + /* Don't try to set parameters for non-tty devices. */ + if (!isatty(fd)) + return 0; + + SYSCALL (tcgetattr (fd, &t)); + + if ((baud = GetBaud (speed))) + { + cfsetispeed (&t, baud); + cfsetospeed (&t, baud); + } + else + { + xf86Msg (X_ERROR, + "Invalid Option BaudRate value: %d\n", speed); + return (-1); + } + + SYSCALL (r = tcsetattr (fd, TCSANOW, &t)); + return (r); +} + +int +xf86ReadSerial (int fd, void *buf, int count) +{ + int r; + int i; + + SYSCALL (r = read (fd, buf, count)); + DebugF("ReadingSerial: 0x%x", + (unsigned char)*(((unsigned char *)buf))); + for (i = 1; i < r; i++) + DebugF(", 0x%x",(unsigned char)*(((unsigned char *)buf) + i)); + DebugF("\n"); + return (r); +} + +int +xf86WriteSerial (int fd, const void *buf, int count) +{ + int r; + int i; + + DebugF("WritingSerial: 0x%x",(unsigned char)*(((unsigned char *)buf))); + for (i = 1; i < count; i++) + ErrorF(", 0x%x",(unsigned char)*(((unsigned char *)buf) + i)); + DebugF("\n"); + SYSCALL (r = write (fd, buf, count)); + return (r); +} + +int +xf86CloseSerial (int fd) +{ + int r; + + SYSCALL (r = close (fd)); + return (r); +} + +int +xf86WaitForInput (int fd, int timeout) +{ + fd_set readfds; + struct timeval to; + int r; + + FD_ZERO(&readfds); + + if (fd >= 0) { + FD_SET(fd, &readfds); + } + + to.tv_sec = timeout / 1000000; + to.tv_usec = timeout % 1000000; + + if (fd >= 0) { + SYSCALL (r = select (FD_SETSIZE, &readfds, NULL, NULL, &to)); + } + else { + SYSCALL (r = select (FD_SETSIZE, NULL, NULL, NULL, &to)); + } + xf86ErrorFVerb (9,"select returned %d\n", r); + return (r); +} + +int +xf86SerialSendBreak (int fd, int duration) +{ + int r; + + SYSCALL (r = tcsendbreak (fd, duration)); + return (r); + +} + +int +xf86FlushInput(int fd) +{ + fd_set fds; + struct timeval timeout; + char c[4]; + + DebugF("FlushingSerial\n"); + if (tcflush(fd, TCIFLUSH) == 0) + return 0; + + timeout.tv_sec = 0; + timeout.tv_usec = 0; + FD_ZERO(&fds); + FD_SET(fd, &fds); + while (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) > 0) { + if (read(fd, &c, sizeof(c)) < 1) + return 0; + FD_ZERO(&fds); + FD_SET(fd, &fds); + } + return 0; +} + +static struct states { + int xf; + int os; +} modemStates[] = { +#ifdef TIOCM_LE + { XF86_M_LE, TIOCM_LE }, +#endif +#ifdef TIOCM_DTR + { XF86_M_DTR, TIOCM_DTR }, +#endif +#ifdef TIOCM_RTS + { XF86_M_RTS, TIOCM_RTS }, +#endif +#ifdef TIOCM_ST + { XF86_M_ST, TIOCM_ST }, +#endif +#ifdef TIOCM_SR + { XF86_M_SR, TIOCM_SR }, +#endif +#ifdef TIOCM_CTS + { XF86_M_CTS, TIOCM_CTS }, +#endif +#ifdef TIOCM_CAR + { XF86_M_CAR, TIOCM_CAR }, +#elif defined(TIOCM_CD) + { XF86_M_CAR, TIOCM_CD }, +#endif +#ifdef TIOCM_RNG + { XF86_M_RNG, TIOCM_RNG }, +#elif defined(TIOCM_RI) + { XF86_M_CAR, TIOCM_RI }, +#endif +#ifdef TIOCM_DSR + { XF86_M_DSR, TIOCM_DSR }, +#endif +}; + +static int numStates = sizeof(modemStates) / sizeof(modemStates[0]); + +static int +xf2osState(int state) +{ + int i; + int ret = 0; + + for (i = 0; i < numStates; i++) + if (state & modemStates[i].xf) + ret |= modemStates[i].os; + return ret; +} + +static int +os2xfState(int state) +{ + int i; + int ret = 0; + + for (i = 0; i < numStates; i++) + if (state & modemStates[i].os) + ret |= modemStates[i].xf; + return ret; +} + +static int +getOsStateMask(void) +{ + int i; + int ret = 0; + for (i = 0; i < numStates; i++) + ret |= modemStates[i].os; + return ret; +} + +static int osStateMask = 0; + +int +xf86SetSerialModemState(int fd, int state) +{ + int ret; + int s; + + if (fd < 0) + return -1; + + /* Don't try to set parameters for non-tty devices. */ + if (!isatty(fd)) + return 0; + +#ifndef TIOCMGET + return -1; +#else + if (!osStateMask) + osStateMask = getOsStateMask(); + + state = xf2osState(state); + SYSCALL((ret = ioctl(fd, TIOCMGET, &s))); + if (ret < 0) + return -1; + s &= ~osStateMask; + s |= state; + SYSCALL((ret = ioctl(fd, TIOCMSET, &s))); + if (ret < 0) + return -1; + else + return 0; +#endif +} + +int +xf86GetSerialModemState(int fd) +{ + int ret; + int s; + + if (fd < 0) + return -1; + + /* Don't try to set parameters for non-tty devices. */ + if (!isatty(fd)) + return 0; + +#ifndef TIOCMGET + return -1; +#else + SYSCALL((ret = ioctl(fd, TIOCMGET, &s))); + if (ret < 0) + return -1; + return os2xfState(s); +#endif +} + +int +xf86SerialModemSetBits(int fd, int bits) +{ + int ret; + int s; + + if (fd < 0) + return -1; + + /* Don't try to set parameters for non-tty devices. */ + if (!isatty(fd)) + return 0; + +#ifndef TIOCMGET + return -1; +#else + s = xf2osState(bits); + SYSCALL((ret = ioctl(fd, TIOCMBIS, &s))); + return ret; +#endif +} + +int +xf86SerialModemClearBits(int fd, int bits) +{ + int ret; + int s; + + if (fd < 0) + return -1; + + /* Don't try to set parameters for non-tty devices. */ + if (!isatty(fd)) + return 0; + +#ifndef TIOCMGET + return -1; +#else + s = xf2osState(bits); + SYSCALL((ret = ioctl(fd, TIOCMBIC, &s))); + return ret; +#endif +} diff --git a/xorg-server/hw/xfree86/os-support/shared/vidmem.c b/xorg-server/hw/xfree86/os-support/shared/vidmem.c index 803ce09bd..6358138d8 100644 --- a/xorg-server/hw/xfree86/os-support/shared/vidmem.c +++ b/xorg-server/hw/xfree86/os-support/shared/vidmem.c @@ -1,296 +1,296 @@ -/* - * Copyright (c) 1993-2003 by The XFree86 Project, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Except as contained in this notice, the name of the copyright holder(s) - * and author(s) shall not be used in advertising or otherwise to promote - * the sale, use or other dealings in this Software without prior written - * authorization from the copyright holder(s) and author(s). - */ - - -#ifdef HAVE_XORG_CONFIG_H -#include -#endif - -#include -#include "input.h" -#include "scrnintstr.h" - -#include "xf86.h" -#include "xf86Priv.h" -#include "xf86_OSlib.h" -#include "xf86OSpriv.h" - -/* - * This file contains the common part of the video memory mapping functions - */ - -/* - * Get a piece of the ScrnInfoRec. At the moment, this is only used to hold - * the MTRR option information, but it is likely to be expanded if we do - * auto unmapping of memory at VT switch. - * - */ - -typedef struct { - unsigned long physBase; - unsigned long size; - pointer virtBase; - pointer mtrrInfo; - int flags; -} MappingRec, *MappingPtr; - -typedef struct { - int numMappings; - MappingPtr * mappings; - Bool mtrrEnabled; - MessageType mtrrFrom; - Bool mtrrOptChecked; - ScrnInfoPtr pScrn; -} VidMapRec, *VidMapPtr; - -static int vidMapIndex = -1; - -#define VIDMAPPTR(p) ((VidMapPtr)((p)->privates[vidMapIndex].ptr)) - -static VidMemInfo vidMemInfo = {FALSE, }; -static VidMapRec vidMapRec = {0, NULL, TRUE, X_DEFAULT, FALSE, NULL}; - -static VidMapPtr -getVidMapRec(int scrnIndex) -{ - VidMapPtr vp; - ScrnInfoPtr pScrn; - - if ((scrnIndex < 0) || - !(pScrn = xf86Screens[scrnIndex])) - return &vidMapRec; - - if (vidMapIndex < 0) - vidMapIndex = xf86AllocateScrnInfoPrivateIndex(); - - if (VIDMAPPTR(pScrn) != NULL) - return VIDMAPPTR(pScrn); - - vp = pScrn->privates[vidMapIndex].ptr = xnfcalloc(sizeof(VidMapRec), 1); - vp->mtrrEnabled = TRUE; /* default to enabled */ - vp->mtrrFrom = X_DEFAULT; - vp->mtrrOptChecked = FALSE; - vp->pScrn = pScrn; - return vp; -} - -static MappingPtr -newMapping(VidMapPtr vp) -{ - vp->mappings = xnfrealloc(vp->mappings, sizeof(MappingPtr) * - (vp->numMappings + 1)); - vp->mappings[vp->numMappings] = xnfcalloc(sizeof(MappingRec), 1); - return vp->mappings[vp->numMappings++]; -} - -static MappingPtr -findMapping(VidMapPtr vp, pointer vbase, unsigned long size) -{ - int i; - - for (i = 0; i < vp->numMappings; i++) { - if (vp->mappings[i]->virtBase == vbase && - vp->mappings[i]->size == size) - return vp->mappings[i]; - } - return NULL; -} - -static void -removeMapping(VidMapPtr vp, MappingPtr mp) -{ - int i, found = 0; - - for (i = 0; i < vp->numMappings; i++) { - if (vp->mappings[i] == mp) { - found = 1; - xfree(vp->mappings[i]); - } else if (found) { - vp->mappings[i - 1] = vp->mappings[i]; - } - } - vp->numMappings--; - vp->mappings[vp->numMappings] = NULL; -} - -enum { OPTION_MTRR }; -static const OptionInfoRec opts[] = -{ - { OPTION_MTRR, "mtrr", OPTV_BOOLEAN, {0}, FALSE }, - { -1, NULL, OPTV_NONE, {0}, FALSE } -}; - -static void -checkMtrrOption(VidMapPtr vp) -{ - if (!vp->mtrrOptChecked && vp->pScrn && vp->pScrn->options != NULL) { - OptionInfoPtr options; - - options = xnfalloc(sizeof(opts)); - (void)memcpy(options, opts, sizeof(opts)); - xf86ProcessOptions(vp->pScrn->scrnIndex, vp->pScrn->options, - options); - if (xf86GetOptValBool(options, OPTION_MTRR, &vp->mtrrEnabled)) - vp->mtrrFrom = X_CONFIG; - xfree(options); - vp->mtrrOptChecked = TRUE; - } -} - -void -xf86MakeNewMapping(int ScreenNum, int Flags, unsigned long Base, unsigned long Size, pointer Vbase) -{ - VidMapPtr vp; - MappingPtr mp; - - vp = getVidMapRec(ScreenNum); - mp = newMapping(vp); - mp->physBase = Base; - mp->size = Size; - mp->virtBase = Vbase; - mp->flags = Flags; -} - -void -xf86InitVidMem(void) -{ - if (!vidMemInfo.initialised) { - memset(&vidMemInfo, 0, sizeof(VidMemInfo)); - xf86OSInitVidMem(&vidMemInfo); - } -} - -pointer -xf86MapVidMem(int ScreenNum, int Flags, unsigned long Base, unsigned long Size) -{ - pointer vbase = NULL; - VidMapPtr vp; - MappingPtr mp; - - if (((Flags & VIDMEM_FRAMEBUFFER) && - (Flags & (VIDMEM_MMIO | VIDMEM_MMIO_32BIT)))) - FatalError("Mapping memory with more than one type\n"); - - xf86InitVidMem(); - if (!vidMemInfo.initialised || !vidMemInfo.mapMem) - return NULL; - - vbase = vidMemInfo.mapMem(ScreenNum, Base, Size, Flags); - - if (!vbase || vbase == (pointer)-1) - return NULL; - - vp = getVidMapRec(ScreenNum); - mp = newMapping(vp); - mp->physBase = Base; - mp->size = Size; - mp->virtBase = vbase; - mp->flags = Flags; - - /* - * Check the "mtrr" option even when MTRR isn't supported to avoid - * warnings about unrecognised options. - */ - checkMtrrOption(vp); - - if (vp->mtrrEnabled && vidMemInfo.setWC) { - if (Flags & (VIDMEM_MMIO | VIDMEM_MMIO_32BIT)) - mp->mtrrInfo = - vidMemInfo.setWC(ScreenNum, Base, Size, FALSE, - vp->mtrrFrom); - else if (Flags & VIDMEM_FRAMEBUFFER) - mp->mtrrInfo = - vidMemInfo.setWC(ScreenNum, Base, Size, TRUE, - vp->mtrrFrom); - } - return vbase; -} - -void -xf86UnMapVidMem(int ScreenNum, pointer Base, unsigned long Size) -{ - VidMapPtr vp; - MappingPtr mp; - - if (!vidMemInfo.initialised || !vidMemInfo.unmapMem) { - xf86DrvMsg(ScreenNum, X_WARNING, - "xf86UnMapVidMem() called before xf86MapVidMem()\n"); - return; - } - - vp = getVidMapRec(ScreenNum); - mp = findMapping(vp, Base, Size); - if (!mp) { - xf86DrvMsg(ScreenNum, X_WARNING, - "xf86UnMapVidMem: cannot find region for [%p,0x%lx]\n", - Base, Size); - return; - } - if (vp->mtrrEnabled && vidMemInfo.undoWC && mp) - vidMemInfo.undoWC(ScreenNum, mp->mtrrInfo); - - vidMemInfo.unmapMem(ScreenNum, Base, Size); - removeMapping(vp, mp); -} - -Bool -xf86CheckMTRR(int ScreenNum) -{ - VidMapPtr vp = getVidMapRec(ScreenNum); - - /* - * Check the "mtrr" option even when MTRR isn't supported to avoid - * warnings about unrecognised options. - */ - checkMtrrOption(vp); - - if (vp->mtrrEnabled && vidMemInfo.setWC) - return TRUE; - - return FALSE; -} - -Bool -xf86LinearVidMem(void) -{ - xf86InitVidMem(); - return vidMemInfo.linearSupported; -} - -void -xf86MapReadSideEffects(int ScreenNum, int Flags, pointer base, - unsigned long Size) -{ - if (!(Flags & VIDMEM_READSIDEEFFECT)) - return; - - if (!vidMemInfo.initialised || !vidMemInfo.readSideEffects) - return; - - vidMemInfo.readSideEffects(ScreenNum, base, Size); -} - +/* + * Copyright (c) 1993-2003 by The XFree86 Project, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Except as contained in this notice, the name of the copyright holder(s) + * and author(s) shall not be used in advertising or otherwise to promote + * the sale, use or other dealings in this Software without prior written + * authorization from the copyright holder(s) and author(s). + */ + + +#ifdef HAVE_XORG_CONFIG_H +#include +#endif + +#include +#include "input.h" +#include "scrnintstr.h" + +#include "xf86.h" +#include "xf86Priv.h" +#include "xf86_OSlib.h" +#include "xf86OSpriv.h" + +/* + * This file contains the common part of the video memory mapping functions + */ + +/* + * Get a piece of the ScrnInfoRec. At the moment, this is only used to hold + * the MTRR option information, but it is likely to be expanded if we do + * auto unmapping of memory at VT switch. + * + */ + +typedef struct { + unsigned long physBase; + unsigned long size; + pointer virtBase; + pointer mtrrInfo; + int flags; +} MappingRec, *MappingPtr; + +typedef struct { + int numMappings; + MappingPtr * mappings; + Bool mtrrEnabled; + MessageType mtrrFrom; + Bool mtrrOptChecked; + ScrnInfoPtr pScrn; +} VidMapRec, *VidMapPtr; + +static int vidMapIndex = -1; + +#define VIDMAPPTR(p) ((VidMapPtr)((p)->privates[vidMapIndex].ptr)) + +static VidMemInfo vidMemInfo = {FALSE, }; +static VidMapRec vidMapRec = {0, NULL, TRUE, X_DEFAULT, FALSE, NULL}; + +static VidMapPtr +getVidMapRec(int scrnIndex) +{ + VidMapPtr vp; + ScrnInfoPtr pScrn; + + if ((scrnIndex < 0) || + !(pScrn = xf86Screens[scrnIndex])) + return &vidMapRec; + + if (vidMapIndex < 0) + vidMapIndex = xf86AllocateScrnInfoPrivateIndex(); + + if (VIDMAPPTR(pScrn) != NULL) + return VIDMAPPTR(pScrn); + + vp = pScrn->privates[vidMapIndex].ptr = xnfcalloc(sizeof(VidMapRec), 1); + vp->mtrrEnabled = TRUE; /* default to enabled */ + vp->mtrrFrom = X_DEFAULT; + vp->mtrrOptChecked = FALSE; + vp->pScrn = pScrn; + return vp; +} + +static MappingPtr +newMapping(VidMapPtr vp) +{ + vp->mappings = xnfrealloc(vp->mappings, sizeof(MappingPtr) * + (vp->numMappings + 1)); + vp->mappings[vp->numMappings] = xnfcalloc(sizeof(MappingRec), 1); + return vp->mappings[vp->numMappings++]; +} + +static MappingPtr +findMapping(VidMapPtr vp, pointer vbase, unsigned long size) +{ + int i; + + for (i = 0; i < vp->numMappings; i++) { + if (vp->mappings[i]->virtBase == vbase && + vp->mappings[i]->size == size) + return vp->mappings[i]; + } + return NULL; +} + +static void +removeMapping(VidMapPtr vp, MappingPtr mp) +{ + int i, found = 0; + + for (i = 0; i < vp->numMappings; i++) { + if (vp->mappings[i] == mp) { + found = 1; + free(vp->mappings[i]); + } else if (found) { + vp->mappings[i - 1] = vp->mappings[i]; + } + } + vp->numMappings--; + vp->mappings[vp->numMappings] = NULL; +} + +enum { OPTION_MTRR }; +static const OptionInfoRec opts[] = +{ + { OPTION_MTRR, "mtrr", OPTV_BOOLEAN, {0}, FALSE }, + { -1, NULL, OPTV_NONE, {0}, FALSE } +}; + +static void +checkMtrrOption(VidMapPtr vp) +{ + if (!vp->mtrrOptChecked && vp->pScrn && vp->pScrn->options != NULL) { + OptionInfoPtr options; + + options = xnfalloc(sizeof(opts)); + (void)memcpy(options, opts, sizeof(opts)); + xf86ProcessOptions(vp->pScrn->scrnIndex, vp->pScrn->options, + options); + if (xf86GetOptValBool(options, OPTION_MTRR, &vp->mtrrEnabled)) + vp->mtrrFrom = X_CONFIG; + free(options); + vp->mtrrOptChecked = TRUE; + } +} + +void +xf86MakeNewMapping(int ScreenNum, int Flags, unsigned long Base, unsigned long Size, pointer Vbase) +{ + VidMapPtr vp; + MappingPtr mp; + + vp = getVidMapRec(ScreenNum); + mp = newMapping(vp); + mp->physBase = Base; + mp->size = Size; + mp->virtBase = Vbase; + mp->flags = Flags; +} + +void +xf86InitVidMem(void) +{ + if (!vidMemInfo.initialised) { + memset(&vidMemInfo, 0, sizeof(VidMemInfo)); + xf86OSInitVidMem(&vidMemInfo); + } +} + +pointer +xf86MapVidMem(int ScreenNum, int Flags, unsigned long Base, unsigned long Size) +{ + pointer vbase = NULL; + VidMapPtr vp; + MappingPtr mp; + + if (((Flags & VIDMEM_FRAMEBUFFER) && + (Flags & (VIDMEM_MMIO | VIDMEM_MMIO_32BIT)))) + FatalError("Mapping memory with more than one type\n"); + + xf86InitVidMem(); + if (!vidMemInfo.initialised || !vidMemInfo.mapMem) + return NULL; + + vbase = vidMemInfo.mapMem(ScreenNum, Base, Size, Flags); + + if (!vbase || vbase == (pointer)-1) + return NULL; + + vp = getVidMapRec(ScreenNum); + mp = newMapping(vp); + mp->physBase = Base; + mp->size = Size; + mp->virtBase = vbase; + mp->flags = Flags; + + /* + * Check the "mtrr" option even when MTRR isn't supported to avoid + * warnings about unrecognised options. + */ + checkMtrrOption(vp); + + if (vp->mtrrEnabled && vidMemInfo.setWC) { + if (Flags & (VIDMEM_MMIO | VIDMEM_MMIO_32BIT)) + mp->mtrrInfo = + vidMemInfo.setWC(ScreenNum, Base, Size, FALSE, + vp->mtrrFrom); + else if (Flags & VIDMEM_FRAMEBUFFER) + mp->mtrrInfo = + vidMemInfo.setWC(ScreenNum, Base, Size, TRUE, + vp->mtrrFrom); + } + return vbase; +} + +void +xf86UnMapVidMem(int ScreenNum, pointer Base, unsigned long Size) +{ + VidMapPtr vp; + MappingPtr mp; + + if (!vidMemInfo.initialised || !vidMemInfo.unmapMem) { + xf86DrvMsg(ScreenNum, X_WARNING, + "xf86UnMapVidMem() called before xf86MapVidMem()\n"); + return; + } + + vp = getVidMapRec(ScreenNum); + mp = findMapping(vp, Base, Size); + if (!mp) { + xf86DrvMsg(ScreenNum, X_WARNING, + "xf86UnMapVidMem: cannot find region for [%p,0x%lx]\n", + Base, Size); + return; + } + if (vp->mtrrEnabled && vidMemInfo.undoWC && mp) + vidMemInfo.undoWC(ScreenNum, mp->mtrrInfo); + + vidMemInfo.unmapMem(ScreenNum, Base, Size); + removeMapping(vp, mp); +} + +Bool +xf86CheckMTRR(int ScreenNum) +{ + VidMapPtr vp = getVidMapRec(ScreenNum); + + /* + * Check the "mtrr" option even when MTRR isn't supported to avoid + * warnings about unrecognised options. + */ + checkMtrrOption(vp); + + if (vp->mtrrEnabled && vidMemInfo.setWC) + return TRUE; + + return FALSE; +} + +Bool +xf86LinearVidMem(void) +{ + xf86InitVidMem(); + return vidMemInfo.linearSupported; +} + +void +xf86MapReadSideEffects(int ScreenNum, int Flags, pointer base, + unsigned long Size) +{ + if (!(Flags & VIDMEM_READSIDEEFFECT)) + return; + + if (!vidMemInfo.initialised || !vidMemInfo.readSideEffects) + return; + + vidMemInfo.readSideEffects(ScreenNum, base, Size); +} + diff --git a/xorg-server/hw/xfree86/os-support/solaris/sun_agp.c b/xorg-server/hw/xfree86/os-support/solaris/sun_agp.c index e6a55a48b..a5fb5c6e6 100644 --- a/xorg-server/hw/xfree86/os-support/solaris/sun_agp.c +++ b/xorg-server/hw/xfree86/os-support/solaris/sun_agp.c @@ -1,327 +1,327 @@ -/* - * Abstraction of the AGP GART interface. - * - * This version is for Solaris. - * - * Copyright © 2000 VA Linux Systems, Inc. - * Copyright © 2001 The XFree86 Project, Inc. - */ -/* Copyright 2005 Sun Microsystems, Inc. All rights reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - */ - -#ifdef HAVE_XORG_CONFIG_H -#include -#endif - -#include -#include "xf86.h" -#include "xf86Priv.h" -#include "xf86_OSlib.h" -#include "xf86_OSproc.h" -#include -#include -#include -#include -#include - -/* AGP page size is independent of the host page size. */ -#ifndef AGP_PAGE_SIZE -#define AGP_PAGE_SIZE 4096 -#endif - -static int gartFd = -1; -static int acquiredScreen = -1; -static Bool initDone = FALSE; -/* - * Close /dev/agpgart. This frees all associated memory allocated during - * this server generation. - */ -Bool -xf86GARTCloseScreen(int screenNum) -{ - if (gartFd != -1) { - close(gartFd); - acquiredScreen = -1; - gartFd = -1; - initDone = FALSE; - - xf86DrvMsg(screenNum, X_INFO, - "xf86GARTCloseScreen: device closed successfully\n"); - - } - return TRUE; -} - -/* - * Open /dev/agpgart. Keep it open until xf86GARTCloseScreen is called. - */ -static Bool -GARTInit(int screenNum) -{ - if (initDone) - return (gartFd != -1); - - if (gartFd == -1) - gartFd = open(AGP_DEVICE, O_RDWR); - else - return FALSE; - - if (gartFd == -1) { - xf86DrvMsg(screenNum, X_ERROR, - "GARTInit: Unable to open " AGP_DEVICE " (%s)\n", - strerror(errno)); - return FALSE; - } - - initDone = TRUE; - xf86DrvMsg(screenNum, X_INFO, - "GARTInit: " AGP_DEVICE " opened successfully\n"); - - return TRUE; -} - -Bool -xf86AgpGARTSupported(void) -{ - return (GARTInit(-1)); - -} - -AgpInfoPtr -xf86GetAGPInfo(int screenNum) -{ - agp_info_t agpinf; - AgpInfoPtr info; - - if (!GARTInit(screenNum)) - return NULL; - - if ((info = xcalloc(sizeof(AgpInfo), 1)) == NULL) { - xf86DrvMsg(screenNum, X_ERROR, - "xf86GetAGPInfo: Failed to allocate AgpInfo\n"); - return NULL; - } - - if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) { - xf86DrvMsg(screenNum, X_ERROR, - "xf86GetAGPInfo: AGPIOC_INFO failed (%s)\n", - strerror(errno)); - return NULL; - } - - info->bridgeId = agpinf.agpi_devid; - info->agpMode = agpinf.agpi_mode; - info->base = agpinf.agpi_aperbase; - info->size = agpinf.agpi_apersize; - info->totalPages = (unsigned long)agpinf.agpi_pgtotal; - info->systemPages = (unsigned long)agpinf.agpi_pgsystem; - info->usedPages = (unsigned long)agpinf.agpi_pgused; - - return info; -} - -Bool -xf86AcquireGART(int screenNum) -{ - - if (!GARTInit(screenNum)) - return FALSE; - - if (acquiredScreen != screenNum) { - if (ioctl(gartFd, AGPIOC_ACQUIRE, 0) != 0) { - xf86DrvMsg(screenNum, X_WARNING, - "xf86AcquireGART: AGPIOC_ACQUIRE failed (%s)\n", - strerror(errno)); - return FALSE; - } - acquiredScreen = screenNum; - xf86DrvMsg(screenNum, X_INFO, - "xf86AcquireGART: AGPIOC_ACQUIRE succeeded\n"); - } - return TRUE; -} - -Bool -xf86ReleaseGART(int screenNum) -{ - - if (!GARTInit(screenNum)) - return FALSE; - - if (acquiredScreen == screenNum) { - /* - * The FreeBSD agp driver removes allocations on release. - * The Solaris driver doesn't. xf86ReleaseGART() is expected - * to give up access to the GART, but not to remove any - * allocations. - */ - - if (ioctl(gartFd, AGPIOC_RELEASE, 0) != 0) { - xf86DrvMsg(screenNum, X_WARNING, - "xf86ReleaseGART: AGPIOC_RELEASE failed (%s)\n", - strerror(errno)); - return FALSE; - } - acquiredScreen = -1; - xf86DrvMsg(screenNum, X_INFO, - "xf86ReleaseGART: AGPIOC_RELEASE succeeded\n"); - return TRUE; - } - return FALSE; -} - -int -xf86AllocateGARTMemory(int screenNum, unsigned long size, int type, - unsigned long *physical) -{ - agp_allocate_t alloc; - int pages; - - /* - * Allocates "size" bytes of GART memory (rounds up to the next - * page multiple) or type "type". A handle (key) for the allocated - * memory is returned. On error, the return value is -1. - * "size" should be larger than 0, or AGPIOC_ALLOCATE ioctl will - * return error. - */ - - if (!GARTInit(screenNum) || (acquiredScreen != screenNum)) - return -1; - - pages = (size / AGP_PAGE_SIZE); - if (size % AGP_PAGE_SIZE != 0) - pages++; - - alloc.agpa_pgcount = pages; - alloc.agpa_type = type; - - if (ioctl(gartFd, AGPIOC_ALLOCATE, &alloc) != 0) { - xf86DrvMsg(screenNum, X_WARNING, "xf86AllocateGARTMemory: " - "allocation of %d pages failed\n\t(%s)\n", pages, - strerror(errno)); - return -1; - } - - if (physical) - *physical = (unsigned long)alloc.agpa_physical; - - return alloc.agpa_key; -} - -Bool -xf86DeallocateGARTMemory(int screenNum, int key) -{ - if (!GARTInit(screenNum) || (acquiredScreen != screenNum)) - return FALSE; - - if (ioctl(gartFd, AGPIOC_DEALLOCATE, (int *)key) != 0) { - xf86DrvMsg(screenNum, X_WARNING, "xf86DeAllocateGARTMemory: " - "deallocation of gart memory with key %d failed\n" - "\t(%s)\n", key, strerror(errno)); - return FALSE; - } - - return TRUE; -} - -/* Bind GART memory with "key" at "offset" */ -Bool -xf86BindGARTMemory(int screenNum, int key, unsigned long offset) -{ - agp_bind_t bind; - int pageOffset; - - if (!GARTInit(screenNum) || (acquiredScreen != screenNum)) - return FALSE; - - if (offset % AGP_PAGE_SIZE != 0) { - xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: " - "offset (0x%lx) is not page-aligned (%d)\n", - offset, AGP_PAGE_SIZE); - return FALSE; - } - pageOffset = offset / AGP_PAGE_SIZE; - - xf86DrvMsgVerb(screenNum, X_INFO, 3, - "xf86BindGARTMemory: bind key %d at 0x%08lx " - "(pgoffset %d)\n", key, offset, pageOffset); - - bind.agpb_pgstart = pageOffset; - bind.agpb_key = key; - - if (ioctl(gartFd, AGPIOC_BIND, &bind) != 0) { - xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: " - "binding of gart memory with key %d\n" - "\tat offset 0x%lx failed (%s)\n", - key, offset, strerror(errno)); - return FALSE; - } - - return TRUE; -} - -/* Unbind GART memory with "key" */ -Bool -xf86UnbindGARTMemory(int screenNum, int key) -{ - agp_unbind_t unbind; - - if (!GARTInit(screenNum) || (acquiredScreen != screenNum)) - return FALSE; - - unbind.agpu_pri = 0; - unbind.agpu_key = key; - - if (ioctl(gartFd, AGPIOC_UNBIND, &unbind) != 0) { - xf86DrvMsg(screenNum, X_WARNING, "xf86UnbindGARTMemory: " - "unbinding of gart memory with key %d " - "failed (%s)\n", key, strerror(errno)); - return FALSE; - } - - xf86DrvMsgVerb(screenNum, X_INFO, 3, - "xf86UnbindGARTMemory: unbind key %d\n", key); - - return TRUE; -} - - -/* XXX Interface may change. */ -Bool -xf86EnableAGP(int screenNum, CARD32 mode) -{ - agp_setup_t setup; - - if (!GARTInit(screenNum) || (acquiredScreen != screenNum)) - return FALSE; - - setup.agps_mode = mode; - if (ioctl(gartFd, AGPIOC_SETUP, &setup) != 0) { - xf86DrvMsg(screenNum, X_WARNING, "xf86EnableAGP: " - "AGPIOC_SETUP with mode %x failed (%s)\n", - mode, strerror(errno)); - return FALSE; - } - - return TRUE; -} - +/* + * Abstraction of the AGP GART interface. + * + * This version is for Solaris. + * + * Copyright © 2000 VA Linux Systems, Inc. + * Copyright © 2001 The XFree86 Project, Inc. + */ +/* Copyright 2005 Sun Microsystems, Inc. All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#ifdef HAVE_XORG_CONFIG_H +#include +#endif + +#include +#include "xf86.h" +#include "xf86Priv.h" +#include "xf86_OSlib.h" +#include "xf86_OSproc.h" +#include +#include +#include +#include +#include + +/* AGP page size is independent of the host page size. */ +#ifndef AGP_PAGE_SIZE +#define AGP_PAGE_SIZE 4096 +#endif + +static int gartFd = -1; +static int acquiredScreen = -1; +static Bool initDone = FALSE; +/* + * Close /dev/agpgart. This frees all associated memory allocated during + * this server generation. + */ +Bool +xf86GARTCloseScreen(int screenNum) +{ + if (gartFd != -1) { + close(gartFd); + acquiredScreen = -1; + gartFd = -1; + initDone = FALSE; + + xf86DrvMsg(screenNum, X_INFO, + "xf86GARTCloseScreen: device closed successfully\n"); + + } + return TRUE; +} + +/* + * Open /dev/agpgart. Keep it open until xf86GARTCloseScreen is called. + */ +static Bool +GARTInit(int screenNum) +{ + if (initDone) + return (gartFd != -1); + + if (gartFd == -1) + gartFd = open(AGP_DEVICE, O_RDWR); + else + return FALSE; + + if (gartFd == -1) { + xf86DrvMsg(screenNum, X_ERROR, + "GARTInit: Unable to open " AGP_DEVICE " (%s)\n", + strerror(errno)); + return FALSE; + } + + initDone = TRUE; + xf86DrvMsg(screenNum, X_INFO, + "GARTInit: " AGP_DEVICE " opened successfully\n"); + + return TRUE; +} + +Bool +xf86AgpGARTSupported(void) +{ + return (GARTInit(-1)); + +} + +AgpInfoPtr +xf86GetAGPInfo(int screenNum) +{ + agp_info_t agpinf; + AgpInfoPtr info; + + if (!GARTInit(screenNum)) + return NULL; + + if ((info = calloc(sizeof(AgpInfo), 1)) == NULL) { + xf86DrvMsg(screenNum, X_ERROR, + "xf86GetAGPInfo: Failed to allocate AgpInfo\n"); + return NULL; + } + + if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) { + xf86DrvMsg(screenNum, X_ERROR, + "xf86GetAGPInfo: AGPIOC_INFO failed (%s)\n", + strerror(errno)); + return NULL; + } + + info->bridgeId = agpinf.agpi_devid; + info->agpMode = agpinf.agpi_mode; + info->base = agpinf.agpi_aperbase; + info->size = agpinf.agpi_apersize; + info->totalPages = (unsigned long)agpinf.agpi_pgtotal; + info->systemPages = (unsigned long)agpinf.agpi_pgsystem; + info->usedPages = (unsigned long)agpinf.agpi_pgused; + + return info; +} + +Bool +xf86AcquireGART(int screenNum) +{ + + if (!GARTInit(screenNum)) + return FALSE; + + if (acquiredScreen != screenNum) { + if (ioctl(gartFd, AGPIOC_ACQUIRE, 0) != 0) { + xf86DrvMsg(screenNum, X_WARNING, + "xf86AcquireGART: AGPIOC_ACQUIRE failed (%s)\n", + strerror(errno)); + return FALSE; + } + acquiredScreen = screenNum; + xf86DrvMsg(screenNum, X_INFO, + "xf86AcquireGART: AGPIOC_ACQUIRE succeeded\n"); + } + return TRUE; +} + +Bool +xf86ReleaseGART(int screenNum) +{ + + if (!GARTInit(screenNum)) + return FALSE; + + if (acquiredScreen == screenNum) { + /* + * The FreeBSD agp driver removes allocations on release. + * The Solaris driver doesn't. xf86ReleaseGART() is expected + * to give up access to the GART, but not to remove any + * allocations. + */ + + if (ioctl(gartFd, AGPIOC_RELEASE, 0) != 0) { + xf86DrvMsg(screenNum, X_WARNING, + "xf86ReleaseGART: AGPIOC_RELEASE failed (%s)\n", + strerror(errno)); + return FALSE; + } + acquiredScreen = -1; + xf86DrvMsg(screenNum, X_INFO, + "xf86ReleaseGART: AGPIOC_RELEASE succeeded\n"); + return TRUE; + } + return FALSE; +} + +int +xf86AllocateGARTMemory(int screenNum, unsigned long size, int type, + unsigned long *physical) +{ + agp_allocate_t alloc; + int pages; + + /* + * Allocates "size" bytes of GART memory (rounds up to the next + * page multiple) or type "type". A handle (key) for the allocated + * memory is returned. On error, the return value is -1. + * "size" should be larger than 0, or AGPIOC_ALLOCATE ioctl will + * return error. + */ + + if (!GARTInit(screenNum) || (acquiredScreen != screenNum)) + return -1; + + pages = (size / AGP_PAGE_SIZE); + if (size % AGP_PAGE_SIZE != 0) + pages++; + + alloc.agpa_pgcount = pages; + alloc.agpa_type = type; + + if (ioctl(gartFd, AGPIOC_ALLOCATE, &alloc) != 0) { + xf86DrvMsg(screenNum, X_WARNING, "xf86AllocateGARTMemory: " + "allocation of %d pages failed\n\t(%s)\n", pages, + strerror(errno)); + return -1; + } + + if (physical) + *physical = (unsigned long)alloc.agpa_physical; + + return alloc.agpa_key; +} + +Bool +xf86DeallocateGARTMemory(int screenNum, int key) +{ + if (!GARTInit(screenNum) || (acquiredScreen != screenNum)) + return FALSE; + + if (ioctl(gartFd, AGPIOC_DEALLOCATE, (int *)key) != 0) { + xf86DrvMsg(screenNum, X_WARNING, "xf86DeAllocateGARTMemory: " + "deallocation of gart memory with key %d failed\n" + "\t(%s)\n", key, strerror(errno)); + return FALSE; + } + + return TRUE; +} + +/* Bind GART memory with "key" at "offset" */ +Bool +xf86BindGARTMemory(int screenNum, int key, unsigned long offset) +{ + agp_bind_t bind; + int pageOffset; + + if (!GARTInit(screenNum) || (acquiredScreen != screenNum)) + return FALSE; + + if (offset % AGP_PAGE_SIZE != 0) { + xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: " + "offset (0x%lx) is not page-aligned (%d)\n", + offset, AGP_PAGE_SIZE); + return FALSE; + } + pageOffset = offset / AGP_PAGE_SIZE; + + xf86DrvMsgVerb(screenNum, X_INFO, 3, + "xf86BindGARTMemory: bind key %d at 0x%08lx " + "(pgoffset %d)\n", key, offset, pageOffset); + + bind.agpb_pgstart = pageOffset; + bind.agpb_key = key; + + if (ioctl(gartFd, AGPIOC_BIND, &bind) != 0) { + xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: " + "binding of gart memory with key %d\n" + "\tat offset 0x%lx failed (%s)\n", + key, offset, strerror(errno)); + return FALSE; + } + + return TRUE; +} + +/* Unbind GART memory with "key" */ +Bool +xf86UnbindGARTMemory(int screenNum, int key) +{ + agp_unbind_t unbind; + + if (!GARTInit(screenNum) || (acquiredScreen != screenNum)) + return FALSE; + + unbind.agpu_pri = 0; + unbind.agpu_key = key; + + if (ioctl(gartFd, AGPIOC_UNBIND, &unbind) != 0) { + xf86DrvMsg(screenNum, X_WARNING, "xf86UnbindGARTMemory: " + "unbinding of gart memory with key %d " + "failed (%s)\n", key, strerror(errno)); + return FALSE; + } + + xf86DrvMsgVerb(screenNum, X_INFO, 3, + "xf86UnbindGARTMemory: unbind key %d\n", key); + + return TRUE; +} + + +/* XXX Interface may change. */ +Bool +xf86EnableAGP(int screenNum, CARD32 mode) +{ + agp_setup_t setup; + + if (!GARTInit(screenNum) || (acquiredScreen != screenNum)) + return FALSE; + + setup.agps_mode = mode; + if (ioctl(gartFd, AGPIOC_SETUP, &setup) != 0) { + xf86DrvMsg(screenNum, X_WARNING, "xf86EnableAGP: " + "AGPIOC_SETUP with mode %x failed (%s)\n", + mode, strerror(errno)); + return FALSE; + } + + return TRUE; +} + -- cgit v1.2.3