summaryrefslogtreecommitdiff
path: root/hw/xfree86/os-support/linux/lnx_video.c
diff options
context:
space:
mode:
Diffstat (limited to 'hw/xfree86/os-support/linux/lnx_video.c')
-rw-r--r--hw/xfree86/os-support/linux/lnx_video.c808
1 files changed, 400 insertions, 408 deletions
diff --git a/hw/xfree86/os-support/linux/lnx_video.c b/hw/xfree86/os-support/linux/lnx_video.c
index 0d91f7a52..3526a21d4 100644
--- a/hw/xfree86/os-support/linux/lnx_video.c
+++ b/hw/xfree86/os-support/linux/lnx_video.c
@@ -70,10 +70,10 @@ extern int iopl(int __level);
#endif
#ifdef __alpha__
-# define BUS_BASE bus_base
-#else
+#define BUS_BASE bus_base
+#else
#define BUS_BASE (0)
-#endif /* __alpha__ */
+#endif /* __alpha__ */
/***************************************************************************/
/* Video Memory Mapping section */
@@ -81,10 +81,11 @@ extern int iopl(int __level);
static pointer mapVidMem(int, unsigned long, unsigned long, int);
static void unmapVidMem(int, pointer, unsigned long);
-#if defined (__alpha__)
+
+#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));
+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);
@@ -105,9 +106,9 @@ 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. */
+#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,
@@ -116,29 +117,29 @@ static int mtrr_fd = MTRR_FD_UNOPENED;
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;
+ /* 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;
}
/*
@@ -147,260 +148,257 @@ mtrr_open(int verbosity)
*/
struct mtrr_wc_region {
- struct mtrr_sentry sentry;
- Bool added; /* added WC or removed it */
- struct mtrr_wc_region * next;
+ 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)
+ 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;
-}
+ /* 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)
+ MessageType from)
{
struct mtrr_gentry gent;
struct mtrr_wc_region *wcreturn = NULL, **wcr;
if (!mtrr_open(2))
- return NULL;
+ 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);
- }
- }
+ 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)
+ MessageType from)
{
- struct mtrr_wc_region **wcr, *wcreturn, *curwcr;
+ struct mtrr_wc_region **wcr, *wcreturn, *curwcr;
- /*
- * There can be only one....
- */
+ /*
+ * There can be only one....
+ */
- wcreturn = mtrr_remove_offending(screenNum, base, size, from);
- wcr = &wcreturn;
- while (*wcr) {
- wcr = &((*wcr)->next);
- }
+ 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. */
+ /* Linux 2.0 should not warn, unless the user explicitly asks for
+ WC. */
- if (!mtrr_open(from == X_CONFIG ? 0 : 2))
- return wcreturn;
+ if (!mtrr_open(from == X_CONFIG ? 0 : 2))
+ return wcreturn;
- *wcr = curwcr = malloc(sizeof(**wcr));
- if (!curwcr)
- 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;
+ 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;
- }
+ /*
+ * 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);
- }
- }
+ 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);
+ 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);
+ mtrr_undo_wc_region(screenNum, regioninfo);
}
-#endif /* HAS_MTRR_SUPPORT */
+#endif /* HAS_MTRR_SUPPORT */
void
xf86OSInitVidMem(VidMemInfoPtr pVidMem)
{
- pVidMem->linearSupported = TRUE;
+ 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;
- }
+ 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__ */
-
+ pVidMem->mapMem = mapVidMem;
+ pVidMem->unmapMem = unmapVidMem;
+#endif /* __alpha__ */
#ifdef HAS_MTRR_SUPPORT
- pVidMem->setWC = setWC;
- pVidMem->undoWC = undoWC;
+ pVidMem->setWC = setWC;
+ pVidMem->undoWC = undoWC;
#endif
- pVidMem->initialised = TRUE;
+ 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)
+static pointer
+mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
{
- return NULL;
+ return NULL;
}
#else
static pointer
@@ -408,14 +406,14 @@ mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
{
pointer base;
int fd;
- int mapflags = MAP_SHARED;
+ 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);
+ Base, realBase, alignOff);
#if defined(__ia64__) || defined(__arm__) || defined(__s390__)
#ifndef MAP_WRITECOMBINED
@@ -424,55 +422,52 @@ mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
#ifndef MAP_NONCACHED
#define MAP_NONCACHED 0x00020000
#endif
- if(flags & VIDMEM_FRAMEBUFFER)
- mapflags |= MAP_WRITECOMBINED;
+ if (flags & VIDMEM_FRAMEBUFFER)
+ mapflags |= MAP_WRITECOMBINED;
else
- mapflags |= MAP_NONCACHED;
+ 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);
+ ((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 (fd < 0) {
+ FatalError("xf86MapVidMem: failed to open " DEV_MEM " (%s)\n",
+ strerror(errno));
}
if (flags & VIDMEM_READONLY)
- prot = PROT_READ;
+ prot = PROT_READ;
else
- prot = PROT_READ | PROT_WRITE;
+ 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);
+ 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));
+ " (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;
+ DebugF("base: %lx aligned base: %lx\n", base, (char *) base + alignOff);
+ return (char *) base + alignOff;
}
-#endif /* !(__sparc__) */
-
+#endif /* !(__sparc__) */
+
static void
unmapVidMem(int ScreenNum, pointer Base, unsigned long Size)
{
- uintptr_t alignOff = (uintptr_t)Base
- - ((uintptr_t)Base & ~(getpagesize() - 1));
+ uintptr_t alignOff = (uintptr_t) Base
+ - ((uintptr_t) Base & ~(getpagesize() - 1));
- DebugF("alignment offset: %lx\n", (unsigned long)alignOff);
- munmap((void *)((uintptr_t)Base - alignOff), (Size + alignOff));
+ DebugF("alignment offset: %lx\n", (unsigned long) alignOff);
+ munmap((void *) ((uintptr_t) Base - alignOff), (Size + alignOff));
}
-
/***************************************************************************/
/* I/O Permissions section */
/***************************************************************************/
@@ -490,68 +485,68 @@ Bool
xf86EnableIO(void)
{
#if defined(__powerpc__)
- int fd;
- unsigned int ioBase_phys;
+ int fd;
+ unsigned int ioBase_phys;
#endif
- if (ExtendedEnabled)
- return TRUE;
+ if (ExtendedEnabled)
+ return TRUE;
#if defined(__powerpc__)
- ioBase_phys = syscall(__NR_pciconfig_iobase, 2, 0, 0);
+ 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);
+ 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;
- }
+ if (ioBase == MAP_FAILED) {
+ xf86Msg(X_WARNING,
+ "xf86EnableIOPorts: Failed to map iobase (%s)\n",
+ strerror(errno));
+ return FALSE;
+ }
#endif
- }
- close(fd);
+ }
+ 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
+ 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;
+ ExtendedEnabled = TRUE;
- return TRUE;
+ return TRUE;
}
void
xf86DisableIO(void)
{
- if (!ExtendedEnabled)
- return;
+ if (!ExtendedEnabled)
+ return;
#if defined(__powerpc__)
- munmap(ioBase, 0x20000);
- ioBase = NULL;
+ 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);
+ iopl(0);
+ ioperm(0, 1024, 0);
#endif
- ExtendedEnabled = FALSE;
+ ExtendedEnabled = FALSE;
- return;
+ return;
}
#if defined (__alpha__)
@@ -562,33 +557,33 @@ 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);
+ writeDenseNB8(int Value, pointer Base, register unsigned long Offset);
extern void
-writeDenseNB16(int Value, pointer Base, register unsigned long Offset);
+ writeDenseNB16(int Value, pointer Base, register unsigned long Offset);
extern void
-writeDenseNB32(int Value, pointer Base, register unsigned long Offset);
+ writeDenseNB32(int Value, pointer Base, register unsigned long Offset);
extern void
-writeDense8(int Value, pointer Base, register unsigned long Offset);
+ writeDense8(int Value, pointer Base, register unsigned long Offset);
extern void
-writeDense16(int Value, pointer Base, register unsigned long Offset);
+ writeDense16(int Value, pointer Base, register unsigned long Offset);
extern void
-writeDense32(int Value, pointer Base, register unsigned long Offset);
+ 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);
+ writeSparseNB8(int Value, pointer Base, register unsigned long Offset);
static void
-writeSparseNB16(int Value, pointer Base, register unsigned long Offset);
+ writeSparseNB16(int Value, pointer Base, register unsigned long Offset);
static void
-writeSparseNB32(int Value, pointer Base, register unsigned long Offset);
+ writeSparseNB32(int Value, pointer Base, register unsigned long Offset);
static void
-writeSparse8(int Value, pointer Base, register unsigned long Offset);
+ writeSparse8(int Value, pointer Base, register unsigned long Offset);
static void
-writeSparse16(int Value, pointer Base, register unsigned long Offset);
+ writeSparse16(int Value, pointer Base, register unsigned long Offset);
static void
-writeSparse32(int Value, pointer Base, register unsigned long Offset);
+ writeSparse32(int Value, pointer Base, register unsigned long Offset);
#define DENSE_BASE 0x2ff00000000UL
#define SPARSE_BASE 0x30000000000UL
@@ -596,7 +591,8 @@ writeSparse32(int Value, pointer Base, register unsigned long Offset);
static unsigned long msb_set = 0;
static pointer
-mapVidMemSparse(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
+mapVidMemSparse(int ScreenNum, unsigned long Base, unsigned long Size,
+ int flags)
{
int fd, prot;
unsigned long ret, rets = 0;
@@ -604,43 +600,42 @@ mapVidMemSparse(int ScreenNum, unsigned long Base, unsigned long Size, int flags
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;
+ 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));
+ strerror(errno));
}
#if 0
- xf86Msg(X_INFO,"mapVidMemSparse: try Base 0x%lx size 0x%lx flags 0x%x\n",
- Base, Size, flags);
+ 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;
+ prot = PROT_READ;
else
- prot = PROT_READ | PROT_WRITE;
+ 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));
+ 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
@@ -650,40 +645,36 @@ mapVidMemSparse(int ScreenNum, unsigned long Base, unsigned long Size, int flags
* 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));
+ ((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) {
+
+ if (ret == (unsigned long) MAP_FAILED) {
FatalError("xf86MapVidMemSparse: Could not (dense) mmap fb (%s)\n",
- strerror(errno));
+ 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));
- }
+ ((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);
+ 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);
+ 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;
@@ -692,16 +683,17 @@ mapVidMemSparse(int ScreenNum, unsigned long Base, unsigned long Size, int flags
static void
unmapVidMemSparse(int ScreenNum, pointer Base, unsigned long Size)
{
- unsigned long Offset = (unsigned long)Base - DENSE_BASE;
+ unsigned long Offset = (unsigned long) Base - DENSE_BASE;
+
#if 1
- xf86Msg(X_INFO,"unmapVidMemSparse: unmapping Base 0x%lx Size 0x%lx\n",
- Base, Size);
+ xf86Msg(X_INFO, "unmapVidMemSparse: unmapping Base 0x%lx Size 0x%lx\n",
+ Base, Size);
#endif
/* Unmap DENSE always. */
- munmap((caddr_t)Base, Size);
+ 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);
+ munmap((caddr_t) (SPARSE_BASE + (Offset << 5)), Size << 5);
}
static int
@@ -711,15 +703,15 @@ readSparse8(pointer Base, register unsigned long Offset)
register unsigned long msb;
mem_barrier();
- Offset += (unsigned long)Base - DENSE_BASE;
+ 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;
- }
+ if (msb_set != msb) {
+ sethae(msb);
+ msb_set = msb;
+ }
}
mem_barrier();
@@ -735,19 +727,19 @@ readSparse16(pointer Base, register unsigned long Offset)
register unsigned long msb;
mem_barrier();
- Offset += (unsigned long)Base - DENSE_BASE;
+ 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;
- }
+ if (msb_set != msb) {
+ sethae(msb);
+ msb_set = msb;
+ }
}
mem_barrier();
- result = *(vuip)(SPARSE_BASE + (Offset<<5) + (1<<(5-2)));
+ result = *(vuip) (SPARSE_BASE + (Offset << 5) + (1 << (5 - 2)));
result >>= shift;
return 0xffffUL & result;
}
@@ -757,7 +749,7 @@ readSparse32(pointer Base, register unsigned long Offset)
{
/* NOTE: this is really using DENSE. */
mem_barrier();
- return *(vuip)((unsigned long)Base+(Offset));
+ return *(vuip) ((unsigned long) Base + (Offset));
}
static void
@@ -767,14 +759,14 @@ writeSparse8(int Value, pointer Base, register unsigned long Offset)
register unsigned int b = Value & 0xffU;
write_mem_barrier();
- Offset += (unsigned long)Base - DENSE_BASE;
+ 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;
- }
+ Offset -= msb;
+ if (msb_set != msb) {
+ sethae(msb);
+ msb_set = msb;
+ }
}
write_mem_barrier();
@@ -788,18 +780,18 @@ writeSparse16(int Value, pointer Base, register unsigned long Offset)
register unsigned int w = Value & 0xffffU;
write_mem_barrier();
- Offset += (unsigned long)Base - DENSE_BASE;
+ 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;
- }
+ Offset -= msb;
+ if (msb_set != msb) {
+ sethae(msb);
+ msb_set = msb;
+ }
}
write_mem_barrier();
- *(vuip)(SPARSE_BASE + (Offset<<5) + (1<<(5-2))) = w * 0x00010001;
+ *(vuip) (SPARSE_BASE + (Offset << 5) + (1 << (5 - 2))) = w * 0x00010001;
}
static void
@@ -807,7 +799,7 @@ writeSparse32(int Value, pointer Base, register unsigned long Offset)
{
/* NOTE: this is really using DENSE. */
write_mem_barrier();
- *(vuip)((unsigned long)Base + (Offset)) = Value;
+ *(vuip) ((unsigned long) Base + (Offset)) = Value;
return;
}
@@ -817,14 +809,14 @@ 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;
+ 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;
- }
+ Offset -= msb;
+ if (msb_set != msb) {
+ sethae(msb);
+ msb_set = msb;
+ }
}
*(vuip) (SPARSE_BASE + (Offset << 5)) = b * 0x01010101;
}
@@ -835,43 +827,43 @@ 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;
+ 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;
- }
+ Offset -= msb;
+ if (msb_set != msb) {
+ sethae(msb);
+ msb_set = msb;
+ }
}
- *(vuip)(SPARSE_BASE+(Offset<<5)+(1<<(5-2))) = w * 0x00010001;
+ *(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;
+ *(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__ */
+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__ */
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-19 19:51:07 +0000