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authormarha <marha@users.sourceforge.net>2011-09-22 15:20:09 +0200
committermarha <marha@users.sourceforge.net>2011-09-22 15:20:09 +0200
commitc1e6c7428a8d2c1b60ffac7df7a3f56c300fa983 (patch)
tree8874978d314129a4f47ee575b076c2d8eb1a8738 /xorg-server/hw/xfree86/int10/generic.c
parent37466741e35c5eb3b204863a5023bf8d192efc06 (diff)
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libxtrans libX11 libX11 libXext mesa xserver git update 22 sep 2011
Diffstat (limited to 'xorg-server/hw/xfree86/int10/generic.c')
-rw-r--r--xorg-server/hw/xfree86/int10/generic.c976
1 files changed, 482 insertions, 494 deletions
diff --git a/xorg-server/hw/xfree86/int10/generic.c b/xorg-server/hw/xfree86/int10/generic.c
index c242405cc..994085493 100644
--- a/xorg-server/hw/xfree86/int10/generic.c
+++ b/xorg-server/hw/xfree86/int10/generic.c
@@ -1,494 +1,482 @@
-/*
- * XFree86 int10 module
- * execute BIOS int 10h calls in x86 real mode environment
- * Copyright 1999 Egbert Eich
- */
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#include <string.h>
-#include <unistd.h>
-
-#include "xf86.h"
-#include "xf86_OSproc.h"
-#include "compiler.h"
-#define _INT10_PRIVATE
-#include "xf86int10.h"
-#include "int10Defines.h"
-#include "Pci.h"
-
-#define ALLOC_ENTRIES(x) ((V_RAM / x) - 1)
-
-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);
-
-/*
- * the emulator cannot pass a pointer to the current xf86Int10InfoRec
- * to the memory access functions therefore store it here.
- */
-
-typedef struct {
- int shift;
- int entries;
- void* base;
- void* vRam;
- int highMemory;
- void* sysMem;
- char* alloc;
-} genericInt10Priv;
-
-#define INTPriv(x) ((genericInt10Priv*)x->private)
-
-int10MemRec genericMem = {
- read_b,
- read_w,
- read_l,
- write_b,
- write_w,
- write_l
-};
-
-static void MapVRam(xf86Int10InfoPtr pInt);
-static void UnmapVRam(xf86Int10InfoPtr pInt);
-#ifdef _PC
-#define GET_HIGH_BASE(x) (((V_BIOS + (x) + getpagesize() - 1)/getpagesize()) \
- * getpagesize())
-#endif
-
-static void *sysMem = NULL;
-
-/**
- * Read legacy VGA video BIOS associated with specified domain.
- *
- * Attempts to read up to 128KiB of legacy VGA video BIOS.
- *
- * \return
- * The number of bytes read on success or -1 on failure.
- *
- * \bug
- * PCI ROMs can contain multiple BIOS images (e.g., OpenFirmware, x86 VGA,
- * etc.). How do we know that \c pci_device_read_rom will return the
- * legacy VGA BIOS image?
- */
-#ifndef _PC
-static int
-read_legacy_video_BIOS(struct pci_device *dev, unsigned char *Buf)
-{
- const ADDRESS Base = 0xC0000;
- const int Len = 0x10000 * 2;
- const int pagemask = getpagesize() - 1;
- const ADDRESS offset = Base & ~pagemask;
- const unsigned long size = ((Base + Len + pagemask) & ~pagemask) - offset;
- unsigned char *ptr, *src;
- int len;
-
-
- /* Try to use the civilized PCI interface first.
- */
- if (pci_device_read_rom(dev, Buf) == 0) {
- return dev->rom_size;
- }
-
- ptr = xf86MapDomainMemory(-1, VIDMEM_READONLY, dev, offset, size);
-
- if (!ptr)
- return -1;
-
- /* Using memcpy() here can hang the system */
- src = ptr + (Base - offset);
- for (len = 0; len < (Len / 2); len++) {
- Buf[len] = src[len];
- }
-
- if ((Buf[0] == 0x55) && (Buf[1] == 0xAA) && (Buf[2] > 0x80)) {
- for ( /* empty */ ; len < Len; len++) {
- Buf[len] = src[len];
- }
- }
-
- xf86UnMapVidMem(-1, ptr, size);
-
- return Len;
-}
-#endif /* _PC */
-
-
-xf86Int10InfoPtr
-xf86ExtendedInitInt10(int entityIndex, int Flags)
-{
- xf86Int10InfoPtr pInt;
- void* base = 0;
- void* vbiosMem = 0;
- void* options = NULL;
- int screen;
- legacyVGARec vga;
-
-#if 0
- CARD32 cs;
-#endif
-
- screen = (xf86FindScreenForEntity(entityIndex))->scrnIndex;
-
- options = xf86HandleInt10Options(xf86Screens[screen],entityIndex);
-
- if (int10skip(options)) {
- free(options);
- return NULL;
- }
-
- pInt = (xf86Int10InfoPtr)xnfcalloc(1, sizeof(xf86Int10InfoRec));
- pInt->entityIndex = entityIndex;
- if (!xf86Int10ExecSetup(pInt))
- goto error0;
- pInt->mem = &genericMem;
- pInt->private = (pointer)xnfcalloc(1, sizeof(genericInt10Priv));
- INTPriv(pInt)->alloc = (pointer)xnfcalloc(1, ALLOC_ENTRIES(getpagesize()));
- pInt->scrnIndex = screen;
- base = INTPriv(pInt)->base = xnfalloc(SYS_BIOS);
-
- /* FIXME: Shouldn't this be a failure case? Leaving dev as NULL seems like
- * FIXME: an error
- */
- pInt->dev = xf86GetPciInfoForEntity(entityIndex);
-
- /*
- * we need to map video RAM MMIO as some chipsets map mmio
- * registers into this range.
- */
- MapVRam(pInt);
-#ifdef _PC
- if (!sysMem)
- sysMem = xf86MapVidMem(screen, VIDMEM_MMIO, V_BIOS,
- BIOS_SIZE + SYS_BIOS - V_BIOS);
- INTPriv(pInt)->sysMem = sysMem;
-
- if (xf86ReadBIOS(0, 0, base, LOW_PAGE_SIZE) < 0) {
- xf86DrvMsg(screen, X_ERROR, "Cannot read int vect\n");
- goto error1;
- }
-
- /*
- * Retrieve everything between V_BIOS and SYS_BIOS as some system BIOSes
- * have executable code there. Note that xf86ReadBIOS() can only read in
- * 64kB at a time.
- */
- memset((char *)base + V_BIOS, 0, SYS_BIOS - V_BIOS);
-#if 0
- for (cs = V_BIOS; cs < SYS_BIOS; cs += V_BIOS_SIZE)
- if (xf86ReadBIOS(cs, 0, (unsigned char *)base + cs, V_BIOS_SIZE) <
- V_BIOS_SIZE)
- xf86DrvMsg(screen, X_WARNING,
- "Unable to retrieve all of segment 0x%06X.\n", cs);
-#endif
- INTPriv(pInt)->highMemory = V_BIOS;
-
- if (xf86IsEntityPrimary(entityIndex) && !(initPrimary(options))) {
- if (!xf86int10GetBiosSegment(pInt, (unsigned char *)sysMem - V_BIOS))
- goto error1;
-
- set_return_trap(pInt);
-
- pInt->Flags = Flags & (SET_BIOS_SCRATCH | RESTORE_BIOS_SCRATCH);
- if (! (pInt->Flags & SET_BIOS_SCRATCH))
- pInt->Flags &= ~RESTORE_BIOS_SCRATCH;
- xf86Int10SaveRestoreBIOSVars(pInt, TRUE);
-
- } else {
- const BusType location_type = xf86int10GetBiosLocationType(pInt);
- int bios_location = V_BIOS;
-
- reset_int_vect(pInt);
- set_return_trap(pInt);
-
- switch (location_type) {
- case BUS_PCI: {
- int err;
- struct pci_device *rom_device =
- xf86GetPciInfoForEntity(pInt->entityIndex);
-
- vbiosMem = (unsigned char *)base + bios_location;
- err = pci_device_read_rom(rom_device, vbiosMem);
- if (err) {
- xf86DrvMsg(screen,X_ERROR,"Cannot read V_BIOS (3) %s\n",
- strerror(err));
- goto error1;
- }
- INTPriv(pInt)->highMemory = GET_HIGH_BASE(rom_device->rom_size);
- break;
- }
- default:
- goto error1;
- }
- pInt->BIOSseg = V_BIOS >> 4;
- pInt->num = 0xe6;
- LockLegacyVGA(pInt, &vga);
- xf86ExecX86int10(pInt);
- UnlockLegacyVGA(pInt, &vga);
- }
-#else
- if (!sysMem) {
- sysMem = xnfalloc(BIOS_SIZE);
- setup_system_bios(sysMem);
- }
- INTPriv(pInt)->sysMem = sysMem;
- setup_int_vect(pInt);
- set_return_trap(pInt);
-
- /* Retrieve the entire legacy video BIOS segment. This can be upto
- * 128KiB.
- */
- vbiosMem = (char *)base + V_BIOS;
- memset(vbiosMem, 0, 2 * V_BIOS_SIZE);
- if (read_legacy_video_BIOS(pInt->dev, vbiosMem) < V_BIOS_SIZE) {
- xf86DrvMsg(screen, X_WARNING,
- "Unable to retrieve all of segment 0x0C0000.\n");
- }
-
- /*
- * If this adapter is the primary, use its post-init BIOS (if we can find
- * it).
- */
- {
- int bios_location = V_BIOS;
- Bool done = FALSE;
- vbiosMem = (unsigned char *)base + bios_location;
-
- if (xf86IsEntityPrimary(entityIndex)) {
- if (int10_check_bios(screen, bios_location >> 4, vbiosMem))
- done = TRUE;
- else
- xf86DrvMsg(screen,X_INFO,
- "No legacy BIOS found -- trying PCI\n");
- }
- if (!done) {
- int err;
- struct pci_device *rom_device =
- xf86GetPciInfoForEntity(pInt->entityIndex);
-
- err = pci_device_read_rom(rom_device, vbiosMem);
- if (err) {
- xf86DrvMsg(screen,X_ERROR,"Cannot read V_BIOS (5) %s\n",
- strerror(err));
- goto error1;
- }
- }
- }
-
- pInt->BIOSseg = V_BIOS >> 4;
- pInt->num = 0xe6;
- LockLegacyVGA(pInt, &vga);
- xf86ExecX86int10(pInt);
- UnlockLegacyVGA(pInt, &vga);
-#endif
- free(options);
- return pInt;
-
- error1:
- free(base);
- UnmapVRam(pInt);
- free(INTPriv(pInt)->alloc);
- free(pInt->private);
- error0:
- free(pInt);
- free(options);
-
- return NULL;
-}
-
-static void
-MapVRam(xf86Int10InfoPtr pInt)
-{
- int pagesize = getpagesize();
- int size = ((VRAM_SIZE + pagesize - 1) / pagesize) * pagesize;
-
- INTPriv(pInt)->vRam = xf86MapDomainMemory(pInt->scrnIndex, VIDMEM_MMIO,
- pInt->dev, V_RAM, size);
-
- pInt->ioBase = xf86Screens[pInt->scrnIndex]->domainIOBase;
-}
-
-static void
-UnmapVRam(xf86Int10InfoPtr pInt)
-{
- int screen = pInt->scrnIndex;
- int pagesize = getpagesize();
- int size = ((VRAM_SIZE + pagesize - 1)/pagesize) * pagesize;
-
- xf86UnMapVidMem(screen, INTPriv(pInt)->vRam, size);
-}
-
-Bool
-MapCurrentInt10(xf86Int10InfoPtr pInt)
-{
- /* nothing to do here */
- return TRUE;
-}
-
-void
-xf86FreeInt10(xf86Int10InfoPtr pInt)
-{
- if (!pInt)
- return;
-#if defined (_PC)
- xf86Int10SaveRestoreBIOSVars(pInt, FALSE);
-#endif
- if (Int10Current == pInt)
- Int10Current = NULL;
- free(INTPriv(pInt)->base);
- UnmapVRam(pInt);
- free(INTPriv(pInt)->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 (INTPriv(pInt)->alloc[i] == 0) {
- for (j = i; j < (num + i); j++)
- if (INTPriv(pInt)->alloc[j] != 0)
- break;
- if (j == (num + i))
- break;
- i += num;
- }
- }
- if (i == (num_pages - num))
- return NULL;
-
- for (j = i; j < (i + num); j++)
- INTPriv(pInt)->alloc[j] = 1;
-
- *off = (i + 1) * pagesize;
-
- return (char *)INTPriv(pInt)->base + *off;
-}
-
-void
-xf86Int10FreePages(xf86Int10InfoPtr pInt, void *pbase, int num)
-{
- int pagesize = getpagesize();
- int first = (((char *)pbase - (char *)INTPriv(pInt)->base) / pagesize) - 1;
- int i;
-
- for (i = first; i < (first + num); i++)
- INTPriv(pInt)->alloc[i] = 0;
-}
-
-#define OFF(addr) ((addr) & 0xffff)
-#if defined _PC
-# define HIGH_OFFSET (INTPriv(pInt)->highMemory)
-# define HIGH_BASE V_BIOS
-#else
-# define HIGH_OFFSET SYS_BIOS
-# define HIGH_BASE SYS_BIOS
-#endif
-# define SYS(addr) ((addr) >= HIGH_OFFSET)
-#define V_ADDR(addr) \
- (SYS(addr) ? ((char*)INTPriv(pInt)->sysMem) + (addr - HIGH_BASE) \
- : (((char*)(INTPriv(pInt)->base) + addr)))
-#define VRAM_ADDR(addr) (addr - V_RAM)
-#define VRAM_BASE (INTPriv(pInt)->vRam)
-
-#define VRAM(addr) ((addr >= V_RAM) && (addr < (V_RAM + VRAM_SIZE)))
-#define V_ADDR_RB(addr) \
- (VRAM(addr)) ? MMIO_IN8((CARD8*)VRAM_BASE,VRAM_ADDR(addr)) \
- : *(CARD8*) V_ADDR(addr)
-#define V_ADDR_RW(addr) \
- (VRAM(addr)) ? MMIO_IN16((CARD16*)VRAM_BASE,VRAM_ADDR(addr)) \
- : ldw_u((pointer)V_ADDR(addr))
-#define V_ADDR_RL(addr) \
- (VRAM(addr)) ? MMIO_IN32((CARD32*)VRAM_BASE,VRAM_ADDR(addr)) \
- : ldl_u((pointer)V_ADDR(addr))
-
-#define V_ADDR_WB(addr,val) \
- if(VRAM(addr)) \
- MMIO_OUT8((CARD8*)VRAM_BASE,VRAM_ADDR(addr),val); \
- else \
- *(CARD8*) V_ADDR(addr) = val;
-#define V_ADDR_WW(addr,val) \
- if(VRAM(addr)) \
- MMIO_OUT16((CARD16*)VRAM_BASE,VRAM_ADDR(addr),val); \
- else \
- stw_u((val),(pointer)(V_ADDR(addr)));
-
-#define V_ADDR_WL(addr,val) \
- if (VRAM(addr)) \
- MMIO_OUT32((CARD32*)VRAM_BASE,VRAM_ADDR(addr),val); \
- else \
- stl_u(val,(pointer)(V_ADDR(addr)));
-
-static CARD8
-read_b(xf86Int10InfoPtr pInt, int addr)
-{
- return V_ADDR_RB(addr);
-}
-
-static CARD16
-read_w(xf86Int10InfoPtr pInt, int addr)
-{
-#if X_BYTE_ORDER == X_LITTLE_ENDIAN
- if (OFF(addr + 1) > 0)
- return V_ADDR_RW(addr);
-#endif
- return V_ADDR_RB(addr) | (V_ADDR_RB(addr + 1) << 8);
-}
-
-static CARD32
-read_l(xf86Int10InfoPtr pInt, int addr)
-{
-#if X_BYTE_ORDER == X_LITTLE_ENDIAN
- if (OFF(addr + 3) > 2)
- return V_ADDR_RL(addr);
-#endif
- return V_ADDR_RB(addr) |
- (V_ADDR_RB(addr + 1) << 8) |
- (V_ADDR_RB(addr + 2) << 16) |
- (V_ADDR_RB(addr + 3) << 24);
-}
-
-static void
-write_b(xf86Int10InfoPtr pInt, int addr, CARD8 val)
-{
- V_ADDR_WB(addr,val);
-}
-
-static void
-write_w(xf86Int10InfoPtr pInt, int addr, CARD16 val)
-{
-#if X_BYTE_ORDER == X_LITTLE_ENDIAN
- if (OFF(addr + 1) > 0)
- { V_ADDR_WW(addr, val); }
-#endif
- V_ADDR_WB(addr, val);
- V_ADDR_WB(addr + 1, val >> 8);
-}
-
-static void
-write_l(xf86Int10InfoPtr pInt, int addr, CARD32 val)
-{
-#if X_BYTE_ORDER == X_LITTLE_ENDIAN
- if (OFF(addr + 3) > 2)
- { V_ADDR_WL(addr, val); }
-#endif
- V_ADDR_WB(addr, val);
- V_ADDR_WB(addr + 1, val >> 8);
- V_ADDR_WB(addr + 2, val >> 16);
- V_ADDR_WB(addr + 3, val >> 24);
-}
-
-pointer
-xf86int10Addr(xf86Int10InfoPtr pInt, CARD32 addr)
-{
- return V_ADDR(addr);
-}
+/*
+ * XFree86 int10 module
+ * execute BIOS int 10h calls in x86 real mode environment
+ * Copyright 1999 Egbert Eich
+ */
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <string.h>
+#include <unistd.h>
+
+#include "xf86.h"
+#include "xf86_OSproc.h"
+#include "compiler.h"
+#define _INT10_PRIVATE
+#include "xf86int10.h"
+#include "int10Defines.h"
+#include "Pci.h"
+
+#define ALLOC_ENTRIES(x) ((V_RAM / x) - 1)
+
+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);
+
+/*
+ * the emulator cannot pass a pointer to the current xf86Int10InfoRec
+ * to the memory access functions therefore store it here.
+ */
+
+typedef struct {
+ int shift;
+ int entries;
+ void* base;
+ void* vRam;
+ int highMemory;
+ void* sysMem;
+ char* alloc;
+} genericInt10Priv;
+
+#define INTPriv(x) ((genericInt10Priv*)x->private)
+
+int10MemRec genericMem = {
+ read_b,
+ read_w,
+ read_l,
+ write_b,
+ write_w,
+ write_l
+};
+
+static void MapVRam(xf86Int10InfoPtr pInt);
+static void UnmapVRam(xf86Int10InfoPtr pInt);
+#ifdef _PC
+#define GET_HIGH_BASE(x) (((V_BIOS + (x) + getpagesize() - 1)/getpagesize()) \
+ * getpagesize())
+#endif
+
+static void *sysMem = NULL;
+
+/**
+ * Read legacy VGA video BIOS associated with specified domain.
+ *
+ * Attempts to read up to 128KiB of legacy VGA video BIOS.
+ *
+ * \return
+ * The number of bytes read on success or -1 on failure.
+ *
+ * \bug
+ * PCI ROMs can contain multiple BIOS images (e.g., OpenFirmware, x86 VGA,
+ * etc.). How do we know that \c pci_device_read_rom will return the
+ * legacy VGA BIOS image?
+ */
+#ifndef _PC
+static int
+read_legacy_video_BIOS(struct pci_device *dev, unsigned char *Buf)
+{
+ const ADDRESS Base = 0xC0000;
+ const int Len = 0x10000 * 2;
+ const int pagemask = getpagesize() - 1;
+ const ADDRESS offset = Base & ~pagemask;
+ const unsigned long size = ((Base + Len + pagemask) & ~pagemask) - offset;
+ unsigned char *ptr, *src;
+ int len;
+
+
+ /* Try to use the civilized PCI interface first.
+ */
+ if (pci_device_read_rom(dev, Buf) == 0) {
+ return dev->rom_size;
+ }
+
+ ptr = xf86MapDomainMemory(-1, VIDMEM_READONLY, dev, offset, size);
+
+ if (!ptr)
+ return -1;
+
+ /* Using memcpy() here can hang the system */
+ src = ptr + (Base - offset);
+ for (len = 0; len < (Len / 2); len++) {
+ Buf[len] = src[len];
+ }
+
+ if ((Buf[0] == 0x55) && (Buf[1] == 0xAA) && (Buf[2] > 0x80)) {
+ for ( /* empty */ ; len < Len; len++) {
+ Buf[len] = src[len];
+ }
+ }
+
+ xf86UnMapVidMem(-1, ptr, size);
+
+ return Len;
+}
+#endif /* _PC */
+
+
+xf86Int10InfoPtr
+xf86ExtendedInitInt10(int entityIndex, int Flags)
+{
+ xf86Int10InfoPtr pInt;
+ void* base = 0;
+ void* vbiosMem = 0;
+ void* options = NULL;
+ int screen;
+ legacyVGARec vga;
+
+ screen = (xf86FindScreenForEntity(entityIndex))->scrnIndex;
+
+ options = xf86HandleInt10Options(xf86Screens[screen],entityIndex);
+
+ if (int10skip(options)) {
+ free(options);
+ return NULL;
+ }
+
+ pInt = (xf86Int10InfoPtr)xnfcalloc(1, sizeof(xf86Int10InfoRec));
+ pInt->entityIndex = entityIndex;
+ if (!xf86Int10ExecSetup(pInt))
+ goto error0;
+ pInt->mem = &genericMem;
+ pInt->private = (pointer)xnfcalloc(1, sizeof(genericInt10Priv));
+ INTPriv(pInt)->alloc = (pointer)xnfcalloc(1, ALLOC_ENTRIES(getpagesize()));
+ pInt->scrnIndex = screen;
+ base = INTPriv(pInt)->base = xnfalloc(SYS_BIOS);
+
+ /* FIXME: Shouldn't this be a failure case? Leaving dev as NULL seems like
+ * FIXME: an error
+ */
+ pInt->dev = xf86GetPciInfoForEntity(entityIndex);
+
+ /*
+ * we need to map video RAM MMIO as some chipsets map mmio
+ * registers into this range.
+ */
+ MapVRam(pInt);
+#ifdef _PC
+ if (!sysMem)
+ sysMem = xf86MapVidMem(screen, VIDMEM_MMIO, V_BIOS,
+ BIOS_SIZE + SYS_BIOS - V_BIOS);
+ INTPriv(pInt)->sysMem = sysMem;
+
+ if (xf86ReadBIOS(0, 0, base, LOW_PAGE_SIZE) < 0) {
+ xf86DrvMsg(screen, X_ERROR, "Cannot read int vect\n");
+ goto error1;
+ }
+
+ /*
+ * Retrieve everything between V_BIOS and SYS_BIOS as some system BIOSes
+ * have executable code there.
+ */
+ memset((char *)base + V_BIOS, 0, SYS_BIOS - V_BIOS);
+ INTPriv(pInt)->highMemory = V_BIOS;
+
+ if (xf86IsEntityPrimary(entityIndex) && !(initPrimary(options))) {
+ if (!xf86int10GetBiosSegment(pInt, (unsigned char *)sysMem - V_BIOS))
+ goto error1;
+
+ set_return_trap(pInt);
+
+ pInt->Flags = Flags & (SET_BIOS_SCRATCH | RESTORE_BIOS_SCRATCH);
+ if (! (pInt->Flags & SET_BIOS_SCRATCH))
+ pInt->Flags &= ~RESTORE_BIOS_SCRATCH;
+ xf86Int10SaveRestoreBIOSVars(pInt, TRUE);
+
+ } else {
+ const BusType location_type = xf86int10GetBiosLocationType(pInt);
+ int bios_location = V_BIOS;
+
+ reset_int_vect(pInt);
+ set_return_trap(pInt);
+
+ switch (location_type) {
+ case BUS_PCI: {
+ int err;
+ struct pci_device *rom_device =
+ xf86GetPciInfoForEntity(pInt->entityIndex);
+
+ vbiosMem = (unsigned char *)base + bios_location;
+ err = pci_device_read_rom(rom_device, vbiosMem);
+ if (err) {
+ xf86DrvMsg(screen,X_ERROR,"Cannot read V_BIOS (3) %s\n",
+ strerror(err));
+ goto error1;
+ }
+ INTPriv(pInt)->highMemory = GET_HIGH_BASE(rom_device->rom_size);
+ break;
+ }
+ default:
+ goto error1;
+ }
+ pInt->BIOSseg = V_BIOS >> 4;
+ pInt->num = 0xe6;
+ LockLegacyVGA(pInt, &vga);
+ xf86ExecX86int10(pInt);
+ UnlockLegacyVGA(pInt, &vga);
+ }
+#else
+ if (!sysMem) {
+ sysMem = xnfalloc(BIOS_SIZE);
+ setup_system_bios(sysMem);
+ }
+ INTPriv(pInt)->sysMem = sysMem;
+ setup_int_vect(pInt);
+ set_return_trap(pInt);
+
+ /* Retrieve the entire legacy video BIOS segment. This can be upto
+ * 128KiB.
+ */
+ vbiosMem = (char *)base + V_BIOS;
+ memset(vbiosMem, 0, 2 * V_BIOS_SIZE);
+ if (read_legacy_video_BIOS(pInt->dev, vbiosMem) < V_BIOS_SIZE) {
+ xf86DrvMsg(screen, X_WARNING,
+ "Unable to retrieve all of segment 0x0C0000.\n");
+ }
+
+ /*
+ * If this adapter is the primary, use its post-init BIOS (if we can find
+ * it).
+ */
+ {
+ int bios_location = V_BIOS;
+ Bool done = FALSE;
+ vbiosMem = (unsigned char *)base + bios_location;
+
+ if (xf86IsEntityPrimary(entityIndex)) {
+ if (int10_check_bios(screen, bios_location >> 4, vbiosMem))
+ done = TRUE;
+ else
+ xf86DrvMsg(screen,X_INFO,
+ "No legacy BIOS found -- trying PCI\n");
+ }
+ if (!done) {
+ int err;
+ struct pci_device *rom_device =
+ xf86GetPciInfoForEntity(pInt->entityIndex);
+
+ err = pci_device_read_rom(rom_device, vbiosMem);
+ if (err) {
+ xf86DrvMsg(screen,X_ERROR,"Cannot read V_BIOS (5) %s\n",
+ strerror(err));
+ goto error1;
+ }
+ }
+ }
+
+ pInt->BIOSseg = V_BIOS >> 4;
+ pInt->num = 0xe6;
+ LockLegacyVGA(pInt, &vga);
+ xf86ExecX86int10(pInt);
+ UnlockLegacyVGA(pInt, &vga);
+#endif
+ free(options);
+ return pInt;
+
+ error1:
+ free(base);
+ UnmapVRam(pInt);
+ free(INTPriv(pInt)->alloc);
+ free(pInt->private);
+ error0:
+ free(pInt);
+ free(options);
+
+ return NULL;
+}
+
+static void
+MapVRam(xf86Int10InfoPtr pInt)
+{
+ int pagesize = getpagesize();
+ int size = ((VRAM_SIZE + pagesize - 1) / pagesize) * pagesize;
+
+ INTPriv(pInt)->vRam = xf86MapDomainMemory(pInt->scrnIndex, VIDMEM_MMIO,
+ pInt->dev, V_RAM, size);
+
+ pInt->ioBase = xf86Screens[pInt->scrnIndex]->domainIOBase;
+}
+
+static void
+UnmapVRam(xf86Int10InfoPtr pInt)
+{
+ int screen = pInt->scrnIndex;
+ int pagesize = getpagesize();
+ int size = ((VRAM_SIZE + pagesize - 1)/pagesize) * pagesize;
+
+ xf86UnMapVidMem(screen, INTPriv(pInt)->vRam, size);
+}
+
+Bool
+MapCurrentInt10(xf86Int10InfoPtr pInt)
+{
+ /* nothing to do here */
+ return TRUE;
+}
+
+void
+xf86FreeInt10(xf86Int10InfoPtr pInt)
+{
+ if (!pInt)
+ return;
+#if defined (_PC)
+ xf86Int10SaveRestoreBIOSVars(pInt, FALSE);
+#endif
+ if (Int10Current == pInt)
+ Int10Current = NULL;
+ free(INTPriv(pInt)->base);
+ UnmapVRam(pInt);
+ free(INTPriv(pInt)->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 (INTPriv(pInt)->alloc[i] == 0) {
+ for (j = i; j < (num + i); j++)
+ if (INTPriv(pInt)->alloc[j] != 0)
+ break;
+ if (j == (num + i))
+ break;
+ i += num;
+ }
+ }
+ if (i == (num_pages - num))
+ return NULL;
+
+ for (j = i; j < (i + num); j++)
+ INTPriv(pInt)->alloc[j] = 1;
+
+ *off = (i + 1) * pagesize;
+
+ return (char *)INTPriv(pInt)->base + *off;
+}
+
+void
+xf86Int10FreePages(xf86Int10InfoPtr pInt, void *pbase, int num)
+{
+ int pagesize = getpagesize();
+ int first = (((char *)pbase - (char *)INTPriv(pInt)->base) / pagesize) - 1;
+ int i;
+
+ for (i = first; i < (first + num); i++)
+ INTPriv(pInt)->alloc[i] = 0;
+}
+
+#define OFF(addr) ((addr) & 0xffff)
+#if defined _PC
+# define HIGH_OFFSET (INTPriv(pInt)->highMemory)
+# define HIGH_BASE V_BIOS
+#else
+# define HIGH_OFFSET SYS_BIOS
+# define HIGH_BASE SYS_BIOS
+#endif
+# define SYS(addr) ((addr) >= HIGH_OFFSET)
+#define V_ADDR(addr) \
+ (SYS(addr) ? ((char*)INTPriv(pInt)->sysMem) + (addr - HIGH_BASE) \
+ : (((char*)(INTPriv(pInt)->base) + addr)))
+#define VRAM_ADDR(addr) (addr - V_RAM)
+#define VRAM_BASE (INTPriv(pInt)->vRam)
+
+#define VRAM(addr) ((addr >= V_RAM) && (addr < (V_RAM + VRAM_SIZE)))
+#define V_ADDR_RB(addr) \
+ (VRAM(addr)) ? MMIO_IN8((CARD8*)VRAM_BASE,VRAM_ADDR(addr)) \
+ : *(CARD8*) V_ADDR(addr)
+#define V_ADDR_RW(addr) \
+ (VRAM(addr)) ? MMIO_IN16((CARD16*)VRAM_BASE,VRAM_ADDR(addr)) \
+ : ldw_u((pointer)V_ADDR(addr))
+#define V_ADDR_RL(addr) \
+ (VRAM(addr)) ? MMIO_IN32((CARD32*)VRAM_BASE,VRAM_ADDR(addr)) \
+ : ldl_u((pointer)V_ADDR(addr))
+
+#define V_ADDR_WB(addr,val) \
+ if(VRAM(addr)) \
+ MMIO_OUT8((CARD8*)VRAM_BASE,VRAM_ADDR(addr),val); \
+ else \
+ *(CARD8*) V_ADDR(addr) = val;
+#define V_ADDR_WW(addr,val) \
+ if(VRAM(addr)) \
+ MMIO_OUT16((CARD16*)VRAM_BASE,VRAM_ADDR(addr),val); \
+ else \
+ stw_u((val),(pointer)(V_ADDR(addr)));
+
+#define V_ADDR_WL(addr,val) \
+ if (VRAM(addr)) \
+ MMIO_OUT32((CARD32*)VRAM_BASE,VRAM_ADDR(addr),val); \
+ else \
+ stl_u(val,(pointer)(V_ADDR(addr)));
+
+static CARD8
+read_b(xf86Int10InfoPtr pInt, int addr)
+{
+ return V_ADDR_RB(addr);
+}
+
+static CARD16
+read_w(xf86Int10InfoPtr pInt, int addr)
+{
+#if X_BYTE_ORDER == X_LITTLE_ENDIAN
+ if (OFF(addr + 1) > 0)
+ return V_ADDR_RW(addr);
+#endif
+ return V_ADDR_RB(addr) | (V_ADDR_RB(addr + 1) << 8);
+}
+
+static CARD32
+read_l(xf86Int10InfoPtr pInt, int addr)
+{
+#if X_BYTE_ORDER == X_LITTLE_ENDIAN
+ if (OFF(addr + 3) > 2)
+ return V_ADDR_RL(addr);
+#endif
+ return V_ADDR_RB(addr) |
+ (V_ADDR_RB(addr + 1) << 8) |
+ (V_ADDR_RB(addr + 2) << 16) |
+ (V_ADDR_RB(addr + 3) << 24);
+}
+
+static void
+write_b(xf86Int10InfoPtr pInt, int addr, CARD8 val)
+{
+ V_ADDR_WB(addr,val);
+}
+
+static void
+write_w(xf86Int10InfoPtr pInt, int addr, CARD16 val)
+{
+#if X_BYTE_ORDER == X_LITTLE_ENDIAN
+ if (OFF(addr + 1) > 0)
+ { V_ADDR_WW(addr, val); }
+#endif
+ V_ADDR_WB(addr, val);
+ V_ADDR_WB(addr + 1, val >> 8);
+}
+
+static void
+write_l(xf86Int10InfoPtr pInt, int addr, CARD32 val)
+{
+#if X_BYTE_ORDER == X_LITTLE_ENDIAN
+ if (OFF(addr + 3) > 2)
+ { V_ADDR_WL(addr, val); }
+#endif
+ V_ADDR_WB(addr, val);
+ V_ADDR_WB(addr + 1, val >> 8);
+ V_ADDR_WB(addr + 2, val >> 16);
+ V_ADDR_WB(addr + 3, val >> 24);
+}
+
+pointer
+xf86int10Addr(xf86Int10InfoPtr pInt, CARD32 addr)
+{
+ return V_ADDR(addr);
+}