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-rw-r--r--xorg-server/hw/xfree86/os-support/bsd/alpha_video.c69
-rw-r--r--xorg-server/hw/xfree86/os-support/bsd/arm_video.c7
-rw-r--r--xorg-server/hw/xfree86/os-support/bsd/bsd_init.c1
-rw-r--r--xorg-server/hw/xfree86/os-support/bsd/i386_video.c5
-rw-r--r--xorg-server/hw/xfree86/os-support/bsd/ppc_video.c9
-rw-r--r--xorg-server/hw/xfree86/os-support/bsd/sparc64_video.c4
-rw-r--r--xorg-server/hw/xfree86/os-support/linux/lnx_video.c1758
-rw-r--r--xorg-server/hw/xfree86/os-support/shared/bios_mmap.c278
-rw-r--r--xorg-server/hw/xfree86/os-support/xf86_OSlib.h23
9 files changed, 1037 insertions, 1117 deletions
diff --git a/xorg-server/hw/xfree86/os-support/bsd/alpha_video.c b/xorg-server/hw/xfree86/os-support/bsd/alpha_video.c
index 15eb2a422..882fb3b46 100644
--- a/xorg-server/hw/xfree86/os-support/bsd/alpha_video.c
+++ b/xorg-server/hw/xfree86/os-support/bsd/alpha_video.c
@@ -33,12 +33,10 @@
#include <sys/param.h>
#ifndef __NetBSD__
-# include <sys/sysctl.h>
-# if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
-# include <machine/sysarch.h>
-# endif
-# else
-# include <machine/sysarch.h>
+#include <sys/sysctl.h>
+#endif
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__)
+#include <machine/sysarch.h>
#endif
#include "xf86Axp.h"
@@ -52,10 +50,6 @@
#define MAP_FLAGS (MAP_FILE | MAP_SHARED)
#endif
-#ifndef MAP_FAILED
-#define MAP_FAILED ((caddr_t)-1)
-#endif
-
axpDevice bsdGetAXP(void);
#ifndef __NetBSD__
@@ -64,8 +58,6 @@ extern unsigned long dense_base(void);
static int axpSystem = -1;
static unsigned long hae_thresh;
static unsigned long hae_mask;
-static unsigned long bus_base;
-static unsigned long sparse_size;
static unsigned long
memory_base(void)
@@ -197,7 +189,6 @@ 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);
@@ -297,7 +288,6 @@ xf86OSInitVidMem(VidMemInfoPtr pVidMem)
axpSystem = bsdGetAXP();
hae_thresh = xf86AXPParams[axpSystem].hae_thresh;
hae_mask = xf86AXPParams[axpSystem].hae_mask;
- sparse_size = xf86AXPParams[axpSystem].size;
#endif /* __NetBSD__ */
}
pVidMem->initialised = TRUE;
@@ -440,7 +430,6 @@ xf86DisableIO()
#define vuip volatile unsigned int *
-static unsigned long msb_set = 0;
static pointer memSBase = 0;
static pointer memBase = 0;
@@ -478,29 +467,25 @@ writeSparse32(int Value, pointer Base, register unsigned long Offset);
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
extern int sysarch(int, void *);
-#endif
struct parms {
u_int64_t hae;
};
-#ifndef __NetBSD__
-static int
+static void
sethae(u_int64_t hae)
{
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
#ifndef ALPHA_SETHAE
#define ALPHA_SETHAE 0
#endif
- struct parms p;
- p.hae = hae;
- return (sysarch(ALPHA_SETHAE, (char *)&p));
-#endif
-#ifdef __OpenBSD__
- return -1;
-#endif
+ static struct parms p;
+
+ if (p.hae != hae) {
+ p.hae = hae;
+ sysarch(ALPHA_SETHAE, (char *)&p);
+ }
}
-#endif /* __NetBSD__ */
+#endif
static pointer
mapVidMemSparse(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
@@ -555,12 +540,9 @@ readSparse8(pointer Base, register unsigned long Offset)
if (Offset >= (hae_thresh)) {
msb = Offset & hae_mask;
Offset -= msb;
- if (msb_set != msb) {
-#ifndef __NetBSD__
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
sethae(msb);
#endif
- msb_set = msb;
- }
}
result = *(vuip) ((unsigned long)memSBase + (Offset << 5));
result >>= shift;
@@ -579,12 +561,9 @@ readSparse16(pointer Base, register unsigned long Offset)
if (Offset >= (hae_thresh)) {
msb = Offset & hae_mask;
Offset -= msb;
- if (msb_set != msb) {
-#ifndef __NetBSD__
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
sethae(msb);
#endif
- msb_set = msb;
- }
}
result = *(vuip)((unsigned long)memSBase+(Offset<<5)+(1<<(5-2)));
result >>= shift;
@@ -609,12 +588,9 @@ writeSparse8(int Value, pointer Base, register unsigned long Offset)
if (Offset >= (hae_thresh)) {
msb = Offset & hae_mask;
Offset -= msb;
- if (msb_set != msb) {
-#ifndef __NetBSD__
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
sethae(msb);
#endif
- msb_set = msb;
- }
}
*(vuip) ((unsigned long)memSBase + (Offset << 5)) = b * 0x01010101;
}
@@ -630,12 +606,9 @@ writeSparse16(int Value, pointer Base, register unsigned long Offset)
if (Offset >= (hae_thresh)) {
msb = Offset & hae_mask;
Offset -= msb;
- if (msb_set != msb) {
-#ifndef __NetBSD__
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
sethae(msb);
#endif
- msb_set = msb;
- }
}
*(vuip)((unsigned long)memSBase+(Offset<<5)+(1<<(5-2))) =
w * 0x00010001;
@@ -660,12 +633,9 @@ writeSparseNB8(int Value, pointer Base, register unsigned long Offset)
if (Offset >= (hae_thresh)) {
msb = Offset & hae_mask;
Offset -= msb;
- if (msb_set != msb) {
-#ifndef __NetBSD__
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
sethae(msb);
#endif
- msb_set = msb;
- }
}
*(vuip) ((unsigned long)memSBase + (Offset << 5)) = b * 0x01010101;
}
@@ -680,12 +650,9 @@ writeSparseNB16(int Value, pointer Base, register unsigned long Offset)
if (Offset >= (hae_thresh)) {
msb = Offset & hae_mask ;
Offset -= msb;
- if (msb_set != msb) {
-#ifndef __NetBSD__
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
sethae(msb);
#endif
- msb_set = msb;
- }
}
*(vuip)((unsigned long)memSBase+(Offset<<5)+(1<<(5-2))) =
w * 0x00010001;
diff --git a/xorg-server/hw/xfree86/os-support/bsd/arm_video.c b/xorg-server/hw/xfree86/os-support/bsd/arm_video.c
index eb631a7f3..1de6c87d6 100644
--- a/xorg-server/hw/xfree86/os-support/bsd/arm_video.c
+++ b/xorg-server/hw/xfree86/os-support/bsd/arm_video.c
@@ -97,11 +97,6 @@ struct memAccess ioMemInfo = { CONSOLE_GET_IO_INFO, NULL, NULL,
#define MAP_FLAGS (MAP_FILE | MAP_SHARED)
#endif
-#ifndef MAP_FAILED
-#define MAP_FAILED ((caddr_t)-1)
-#endif
-
-
#define BUS_BASE 0L
#define BUS_BASE_BWX 0L
@@ -113,8 +108,6 @@ struct memAccess ioMemInfo = { CONSOLE_GET_IO_INFO, NULL, NULL,
static Bool useDevMem = FALSE;
static int devMemFd = -1;
-#define DEV_MEM "/dev/mem"
-
static pointer mapVidMem(int, unsigned long, unsigned long, int);
static void unmapVidMem(int, pointer, unsigned long);
diff --git a/xorg-server/hw/xfree86/os-support/bsd/bsd_init.c b/xorg-server/hw/xfree86/os-support/bsd/bsd_init.c
index 844617980..b58d6a790 100644
--- a/xorg-server/hw/xfree86/os-support/bsd/bsd_init.c
+++ b/xorg-server/hw/xfree86/os-support/bsd/bsd_init.c
@@ -710,7 +710,6 @@ xf86UseMsg()
{
#if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
ErrorF("vtXX use the specified VT number (1-12)\n");
- ErrorF("-sharevts share VTs with another X server\n");
#endif /* SYSCONS_SUPPORT || PCVT_SUPPORT */
ErrorF("-keeptty ");
ErrorF("don't detach controlling tty (for debugging only)\n");
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 20dbde86a..35e00fce7 100644
--- a/xorg-server/hw/xfree86/os-support/bsd/i386_video.c
+++ b/xorg-server/hw/xfree86/os-support/bsd/i386_video.c
@@ -64,10 +64,6 @@
#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" \
@@ -88,7 +84,6 @@ 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);
diff --git a/xorg-server/hw/xfree86/os-support/bsd/ppc_video.c b/xorg-server/hw/xfree86/os-support/bsd/ppc_video.c
index aeaf18305..e5d832eed 100644
--- a/xorg-server/hw/xfree86/os-support/bsd/ppc_video.c
+++ b/xorg-server/hw/xfree86/os-support/bsd/ppc_video.c
@@ -36,18 +36,11 @@
#include "bus/Pci.h"
-#ifndef MAP_FAILED
-#define MAP_FAILED ((caddr_t)-1)
-#endif
-
-
/***************************************************************************/
/* Video Memory Mapping section */
/***************************************************************************/
-#ifndef __OpenBSD__
-#define DEV_MEM "/dev/mem"
-#else
+#ifdef __OpenBSD__
#define DEV_MEM "/dev/xf86"
#endif
diff --git a/xorg-server/hw/xfree86/os-support/bsd/sparc64_video.c b/xorg-server/hw/xfree86/os-support/bsd/sparc64_video.c
index a2a30c9d7..960c850a8 100644
--- a/xorg-server/hw/xfree86/os-support/bsd/sparc64_video.c
+++ b/xorg-server/hw/xfree86/os-support/bsd/sparc64_video.c
@@ -34,10 +34,6 @@
#include "xf86_OSlib.h"
#include "xf86OSpriv.h"
-#ifndef MAP_FAILED
-#define MAP_FAILED ((caddr_t)-1)
-#endif
-
/***************************************************************************/
/* Video Memory Mapping section */
/***************************************************************************/
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 697c9fe30..e711784e7 100644
--- a/xorg-server/hw/xfree86/os-support/linux/lnx_video.c
+++ b/xorg-server/hw/xfree86/os-support/linux/lnx_video.c
@@ -1,881 +1,877 @@
-/*
- * Copyright 1992 by Orest Zborowski <obz@Kodak.com>
- * Copyright 1993 by David Wexelblat <dwex@goblin.org>
- *
- * 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 <xorg-config.h>
-#endif
-
-#include <errno.h>
-#include <string.h>
-
-#include <X11/X.h>
-#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 <asm/mtrr.h>
-#endif
-
-#ifndef MAP_FAILED
-#define MAP_FAILED ((void *)-1)
-#endif
-
-static Bool ExtendedEnabled = FALSE;
-
-#ifdef __ia64__
-
-#include "compiler.h"
-#include <sys/io.h>
-
-#elif !defined(__powerpc__) && \
- !defined(__mc68000__) && \
- !defined(__sparc__) && \
- !defined(__mips__) && \
- !defined(__nds32__) && \
- !defined(__arm__)
-
-/*
- * Due to conflicts with "compiler.h", don't rely on <sys/io.h> 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, (char *)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__) && !defined(__nds32__)
- 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__)
- /* XXX: this is actually not trapping anything because of iopl(3)
- * above */
- 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__) && !defined(__nds32__)
- 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 <obz@Kodak.com>
+ * Copyright 1993 by David Wexelblat <dwex@goblin.org>
+ *
+ * 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 <xorg-config.h>
+#endif
+
+#include <errno.h>
+#include <string.h>
+
+#include <X11/X.h>
+#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 <asm/mtrr.h>
+#endif
+
+static Bool ExtendedEnabled = FALSE;
+
+#ifdef __ia64__
+
+#include "compiler.h"
+#include <sys/io.h>
+
+#elif !defined(__powerpc__) && \
+ !defined(__mc68000__) && \
+ !defined(__sparc__) && \
+ !defined(__mips__) && \
+ !defined(__nds32__) && \
+ !defined(__arm__)
+
+/*
+ * Due to conflicts with "compiler.h", don't rely on <sys/io.h> 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, (char *)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__) && !defined(__nds32__)
+ 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__)
+ /* XXX: this is actually not trapping anything because of iopl(3)
+ * above */
+ 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__) && !defined(__nds32__)
+ 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/bios_mmap.c b/xorg-server/hw/xfree86/os-support/shared/bios_mmap.c
index a5887f578..b7b35d9db 100644
--- a/xorg-server/hw/xfree86/os-support/shared/bios_mmap.c
+++ b/xorg-server/hw/xfree86/os-support/shared/bios_mmap.c
@@ -1,141 +1,137 @@
-/*
- * Copyright 1993 by David Wexelblat <dwex@goblin.org>
- *
- * 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 name of David Wexelblat not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission. David Wexelblat makes no representations
- * about the suitability of this software for any purpose. It is provided
- * "as is" without express or implied warranty.
- *
- * DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL 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 <xorg-config.h>
-#endif
-
-#include <X11/X.h>
-
-#include "xf86.h"
-#include "xf86Priv.h"
-#include "xf86_OSlib.h"
-
-#ifndef MAP_FAILED
-#define MAP_FAILED ((void *)-1)
-#endif
-
-/*
- * Read BIOS via mmap()ing DEV_MEM
- */
-
-#ifndef __alpha__
-int
-xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf,
- int Len)
-{
- int fd;
- unsigned char *ptr;
- int psize;
- int mlen;
-
- if ((fd = open(DEV_MEM, O_RDONLY)) < 0)
- {
- xf86Msg(X_WARNING, "xf86ReadBIOS: Failed to open %s (%s)\n",
- DEV_MEM, strerror(errno));
- 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, fd, (off_t)Base);
- if (ptr == MAP_FAILED)
- {
- xf86Msg(X_WARNING, "xf86ReadBIOS: %s mmap failed (%s)\n",
- DEV_MEM, strerror(errno));
- close(fd);
- return -1;
- }
- DebugF("xf86ReadBIOS: BIOS at 0x%08x has signature 0x%04x\n",
- Base, ptr[0] | (ptr[1] << 8));
- (void)memcpy(Buf, (void *)(ptr + Offset), Len);
- (void)munmap((caddr_t)ptr, mlen);
- (void)close(fd);
- return Len;
-}
-
-#else /* __alpha__ */
-
- /*
- * We trick "mmap" into mapping BUS memory for us via BUS_BASE,
- * which is the KSEG address of the start of the DENSE memory
- * area.
- */
-
- /*
- * NOTE: there prolly ought to be more validity checks and all
- * re: boundaries and sizes and such...
- */
-
-#ifdef linux
-
-extern unsigned long _bus_base(void);
-#define BUS_BASE _bus_base()
-
-#else
-
-extern u_int64_t dense_base(void);
-#define BUS_BASE dense_base()
-
-#endif
-
-int
-xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf,
- int Len)
-{
- caddr_t base;
- int fd;
- int psize;
- int mlen;
-
- if ((fd = open(DEV_MEM, O_RDONLY)) < 0)
- {
- xf86Msg(X_WARNING, "xf86ReadBIOS: Failed to open %s (%s)\n",
- DEV_MEM, strerror(errno));
- return -1;
- }
-
- psize = getpagesize();
- Offset += Base & (psize - 1);
- Base &= ~(psize - 1);
- mlen = (Offset + Len + psize - 1) & ~(psize - 1);
- base = mmap((caddr_t)0, mlen, PROT_READ,
- MAP_SHARED, fd, (off_t)(Base + BUS_BASE));
-
- if (base == MAP_FAILED)
- {
- xf86Msg(X_WARNING, "xf86ReadBIOS: Failed to mmap %s (%s)\n",
- DEV_MEM, strerror(errno));
- return -1;
- }
-
- xf86SlowBCopyFromBus((unsigned char *)(base+Offset), Buf, Len);
-
- munmap((caddr_t)base, mlen);
- close(fd);
- return Len;
-}
-
-#endif /* __alpha__ */
+/*
+ * Copyright 1993 by David Wexelblat <dwex@goblin.org>
+ *
+ * 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 name of David Wexelblat not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. David Wexelblat makes no representations
+ * about the suitability of this software for any purpose. It is provided
+ * "as is" without express or implied warranty.
+ *
+ * DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL 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 <xorg-config.h>
+#endif
+
+#include <X11/X.h>
+
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "xf86_OSlib.h"
+
+/*
+ * Read BIOS via mmap()ing DEV_MEM
+ */
+
+#ifndef __alpha__
+int
+xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf,
+ int Len)
+{
+ int fd;
+ unsigned char *ptr;
+ int psize;
+ int mlen;
+
+ if ((fd = open(DEV_MEM, O_RDONLY)) < 0)
+ {
+ xf86Msg(X_WARNING, "xf86ReadBIOS: Failed to open %s (%s)\n",
+ DEV_MEM, strerror(errno));
+ 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, fd, (off_t)Base);
+ if (ptr == MAP_FAILED)
+ {
+ xf86Msg(X_WARNING, "xf86ReadBIOS: %s mmap failed (%s)\n",
+ DEV_MEM, strerror(errno));
+ close(fd);
+ return -1;
+ }
+ DebugF("xf86ReadBIOS: BIOS at 0x%08x has signature 0x%04x\n",
+ Base, ptr[0] | (ptr[1] << 8));
+ (void)memcpy(Buf, (void *)(ptr + Offset), Len);
+ (void)munmap((caddr_t)ptr, mlen);
+ (void)close(fd);
+ return Len;
+}
+
+#else /* __alpha__ */
+
+ /*
+ * We trick "mmap" into mapping BUS memory for us via BUS_BASE,
+ * which is the KSEG address of the start of the DENSE memory
+ * area.
+ */
+
+ /*
+ * NOTE: there prolly ought to be more validity checks and all
+ * re: boundaries and sizes and such...
+ */
+
+#ifdef linux
+
+extern unsigned long _bus_base(void);
+#define BUS_BASE _bus_base()
+
+#else
+
+extern u_int64_t dense_base(void);
+#define BUS_BASE dense_base()
+
+#endif
+
+int
+xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf,
+ int Len)
+{
+ caddr_t base;
+ int fd;
+ int psize;
+ int mlen;
+
+ if ((fd = open(DEV_MEM, O_RDONLY)) < 0)
+ {
+ xf86Msg(X_WARNING, "xf86ReadBIOS: Failed to open %s (%s)\n",
+ DEV_MEM, strerror(errno));
+ return -1;
+ }
+
+ psize = getpagesize();
+ Offset += Base & (psize - 1);
+ Base &= ~(psize - 1);
+ mlen = (Offset + Len + psize - 1) & ~(psize - 1);
+ base = mmap((caddr_t)0, mlen, PROT_READ,
+ MAP_SHARED, fd, (off_t)(Base + BUS_BASE));
+
+ if (base == MAP_FAILED)
+ {
+ xf86Msg(X_WARNING, "xf86ReadBIOS: Failed to mmap %s (%s)\n",
+ DEV_MEM, strerror(errno));
+ return -1;
+ }
+
+ xf86SlowBCopyFromBus((unsigned char *)(base+Offset), Buf, Len);
+
+ munmap((caddr_t)base, mlen);
+ close(fd);
+ return Len;
+}
+
+#endif /* __alpha__ */
diff --git a/xorg-server/hw/xfree86/os-support/xf86_OSlib.h b/xorg-server/hw/xfree86/os-support/xf86_OSlib.h
index 1d5906084..0a5861f49 100644
--- a/xorg-server/hw/xfree86/os-support/xf86_OSlib.h
+++ b/xorg-server/hw/xfree86/os-support/xf86_OSlib.h
@@ -230,20 +230,13 @@
# include <sys/mman.h>
# include <sys/stat.h>
-# if defined(__bsdi__)
-# include <sys/param.h>
-# if (_BSDI_VERSION < 199510)
-# include <i386/isa/vgaioctl.h>
-# endif
-# endif /* __bsdi__ */
-
#endif /* CSRG_BASED */
/**************************************************************************/
/* Kernel of *BSD */
/**************************************************************************/
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
- defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__) || defined(__DragonFly__)
+ defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
# include <sys/param.h>
# if defined(__FreeBSD_version) && !defined(__FreeBSD_kernel_version)
@@ -252,12 +245,6 @@
# if !defined(LINKKIT)
/* Don't need this stuff for the Link Kit */
-# if defined(__bsdi__)
-# include <i386/isa/pcconsioctl.h>
-# define CONSOLE_X_MODE_ON PCCONIOCRAW
-# define CONSOLE_X_MODE_OFF PCCONIOCCOOK
-# define CONSOLE_X_BELL PCCONIOCBEEP
-# else /* __bsdi__ */
# ifdef SYSCONS_SUPPORT
# define COMPAT_SYSCONS
# if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
@@ -328,7 +315,6 @@
#ifndef CONSOLE_GET_MEM_INFO
# define CONSOLE_GET_MEM_INFO _IOR('t',159,struct map_info)
#endif
-# endif /* __bsdi__ */
# endif /* !LINKKIT */
#if defined(USE_I386_IOPL) || defined(USE_AMD64_IOPL)
@@ -337,8 +323,7 @@
# define CLEARDTR_SUPPORT
-#endif
-/* __FreeBSD_kernel__ || __NetBSD__ || __OpenBSD__ || __bsdi__ */
+#endif /* __FreeBSD__ || __NetBSD__ || __OpenBSD__ || __DragonFly__ */
/**************************************************************************/
/* IRIX */
@@ -378,8 +363,8 @@
#define DEV_MEM "/dev/mem"
#endif
-#ifndef VT_SYSREQ_DEFAULT
-#define VT_SYSREQ_DEFAULT FALSE
+#ifndef MAP_FAILED
+#define MAP_FAILED ((void *)-1)
#endif
#define SYSCALL(call) while(((call) == -1) && (errno == EINTR))
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 01:11:43 +0000