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Diffstat (limited to 'xorg-server/hw/xfree86/os-support/shared/vidmem.c')
-rw-r--r--xorg-server/hw/xfree86/os-support/shared/vidmem.c317
1 files changed, 156 insertions, 161 deletions
diff --git a/xorg-server/hw/xfree86/os-support/shared/vidmem.c b/xorg-server/hw/xfree86/os-support/shared/vidmem.c
index 54f6c6497..a7717d8f6 100644
--- a/xorg-server/hw/xfree86/os-support/shared/vidmem.c
+++ b/xorg-server/hw/xfree86/os-support/shared/vidmem.c
@@ -25,7 +25,6 @@
* authorization from the copyright holder(s) and author(s).
*/
-
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
@@ -51,240 +50,236 @@
*/
typedef struct {
- unsigned long size;
- pointer virtBase;
- pointer mtrrInfo;
+ unsigned long size;
+ pointer virtBase;
+ pointer mtrrInfo;
} MappingRec, *MappingPtr;
-
+
typedef struct {
- int numMappings;
- MappingPtr * mappings;
- Bool mtrrEnabled;
- MessageType mtrrFrom;
- Bool mtrrOptChecked;
- ScrnInfoPtr pScrn;
+ int numMappings;
+ MappingPtr *mappings;
+ Bool mtrrEnabled;
+ MessageType mtrrFrom;
+ Bool mtrrOptChecked;
+ ScrnInfoPtr pScrn;
} VidMapRec, *VidMapPtr;
static int vidMapIndex = -1;
#define VIDMAPPTR(p) ((VidMapPtr)((p)->privates[vidMapIndex].ptr))
-static VidMemInfo vidMemInfo = {FALSE, };
-static VidMapRec vidMapRec = {0, NULL, TRUE, X_DEFAULT, FALSE, NULL};
+static VidMemInfo vidMemInfo = { FALSE, };
+static VidMapRec vidMapRec = { 0, NULL, TRUE, X_DEFAULT, FALSE, NULL };
static VidMapPtr
getVidMapRec(int scrnIndex)
{
- VidMapPtr vp;
- ScrnInfoPtr pScrn;
+ VidMapPtr vp;
+ ScrnInfoPtr pScrn;
- if ((scrnIndex < 0) ||
- !(pScrn = xf86Screens[scrnIndex]))
- return &vidMapRec;
+ if ((scrnIndex < 0) || !(pScrn = xf86Screens[scrnIndex]))
+ return &vidMapRec;
- if (vidMapIndex < 0)
- vidMapIndex = xf86AllocateScrnInfoPrivateIndex();
+ if (vidMapIndex < 0)
+ vidMapIndex = xf86AllocateScrnInfoPrivateIndex();
- if (VIDMAPPTR(pScrn) != NULL)
- return VIDMAPPTR(pScrn);
+ if (VIDMAPPTR(pScrn) != NULL)
+ return VIDMAPPTR(pScrn);
- vp = pScrn->privates[vidMapIndex].ptr = xnfcalloc(sizeof(VidMapRec), 1);
- vp->mtrrEnabled = TRUE; /* default to enabled */
- vp->mtrrFrom = X_DEFAULT;
- vp->mtrrOptChecked = FALSE;
- vp->pScrn = pScrn;
- return vp;
+ vp = pScrn->privates[vidMapIndex].ptr = xnfcalloc(sizeof(VidMapRec), 1);
+ vp->mtrrEnabled = TRUE; /* default to enabled */
+ vp->mtrrFrom = X_DEFAULT;
+ vp->mtrrOptChecked = FALSE;
+ vp->pScrn = pScrn;
+ return vp;
}
static MappingPtr
newMapping(VidMapPtr vp)
{
- vp->mappings = xnfrealloc(vp->mappings, sizeof(MappingPtr) *
- (vp->numMappings + 1));
- vp->mappings[vp->numMappings] = xnfcalloc(sizeof(MappingRec), 1);
- return vp->mappings[vp->numMappings++];
+ vp->mappings = xnfrealloc(vp->mappings, sizeof(MappingPtr) *
+ (vp->numMappings + 1));
+ vp->mappings[vp->numMappings] = xnfcalloc(sizeof(MappingRec), 1);
+ return vp->mappings[vp->numMappings++];
}
static MappingPtr
findMapping(VidMapPtr vp, pointer vbase, unsigned long size)
{
- int i;
-
- for (i = 0; i < vp->numMappings; i++) {
- if (vp->mappings[i]->virtBase == vbase &&
- vp->mappings[i]->size == size)
- return vp->mappings[i];
- }
- return NULL;
+ int i;
+
+ for (i = 0; i < vp->numMappings; i++) {
+ if (vp->mappings[i]->virtBase == vbase && vp->mappings[i]->size == size)
+ return vp->mappings[i];
+ }
+ return NULL;
}
static void
removeMapping(VidMapPtr vp, MappingPtr mp)
{
- int i, found = 0;
-
- for (i = 0; i < vp->numMappings; i++) {
- if (vp->mappings[i] == mp) {
- found = 1;
- free(vp->mappings[i]);
- } else if (found) {
- vp->mappings[i - 1] = vp->mappings[i];
- }
- }
- vp->numMappings--;
- vp->mappings[vp->numMappings] = NULL;
+ int i, found = 0;
+
+ for (i = 0; i < vp->numMappings; i++) {
+ if (vp->mappings[i] == mp) {
+ found = 1;
+ free(vp->mappings[i]);
+ }
+ else if (found) {
+ vp->mappings[i - 1] = vp->mappings[i];
+ }
+ }
+ vp->numMappings--;
+ vp->mappings[vp->numMappings] = NULL;
}
enum { OPTION_MTRR };
-static const OptionInfoRec opts[] =
-{
- { OPTION_MTRR, "mtrr", OPTV_BOOLEAN, {0}, FALSE },
- { -1, NULL, OPTV_NONE, {0}, FALSE }
+
+static const OptionInfoRec opts[] = {
+ {OPTION_MTRR, "mtrr", OPTV_BOOLEAN, {0}, FALSE},
+ {-1, NULL, OPTV_NONE, {0}, FALSE}
};
static void
checkMtrrOption(VidMapPtr vp)
{
- if (!vp->mtrrOptChecked && vp->pScrn && vp->pScrn->options != NULL) {
- OptionInfoPtr options;
-
- options = xnfalloc(sizeof(opts));
- (void)memcpy(options, opts, sizeof(opts));
- xf86ProcessOptions(vp->pScrn->scrnIndex, vp->pScrn->options,
- options);
- if (xf86GetOptValBool(options, OPTION_MTRR, &vp->mtrrEnabled))
- vp->mtrrFrom = X_CONFIG;
- free(options);
- vp->mtrrOptChecked = TRUE;
- }
+ if (!vp->mtrrOptChecked && vp->pScrn && vp->pScrn->options != NULL) {
+ OptionInfoPtr options;
+
+ options = xnfalloc(sizeof(opts));
+ (void) memcpy(options, opts, sizeof(opts));
+ xf86ProcessOptions(vp->pScrn->scrnIndex, vp->pScrn->options, options);
+ if (xf86GetOptValBool(options, OPTION_MTRR, &vp->mtrrEnabled))
+ vp->mtrrFrom = X_CONFIG;
+ free(options);
+ vp->mtrrOptChecked = TRUE;
+ }
}
void
-xf86MakeNewMapping(int ScreenNum, int Flags, unsigned long Base, unsigned long Size, pointer Vbase)
+xf86MakeNewMapping(int ScreenNum, int Flags, unsigned long Base,
+ unsigned long Size, pointer Vbase)
{
- VidMapPtr vp;
- MappingPtr mp;
+ VidMapPtr vp;
+ MappingPtr mp;
- vp = getVidMapRec(ScreenNum);
- mp = newMapping(vp);
- mp->size = Size;
- mp->virtBase = Vbase;
+ vp = getVidMapRec(ScreenNum);
+ mp = newMapping(vp);
+ mp->size = Size;
+ mp->virtBase = Vbase;
}
void
xf86InitVidMem(void)
{
- if (!vidMemInfo.initialised) {
- memset(&vidMemInfo, 0, sizeof(VidMemInfo));
- xf86OSInitVidMem(&vidMemInfo);
- }
+ if (!vidMemInfo.initialised) {
+ memset(&vidMemInfo, 0, sizeof(VidMemInfo));
+ xf86OSInitVidMem(&vidMemInfo);
+ }
}
pointer
xf86MapVidMem(int ScreenNum, int Flags, unsigned long Base, unsigned long Size)
{
- pointer vbase = NULL;
- VidMapPtr vp;
- MappingPtr mp;
-
- if (((Flags & VIDMEM_FRAMEBUFFER) &&
- (Flags & (VIDMEM_MMIO | VIDMEM_MMIO_32BIT))))
- FatalError("Mapping memory with more than one type\n");
-
- xf86InitVidMem();
- if (!vidMemInfo.initialised || !vidMemInfo.mapMem)
- return NULL;
-
- vbase = vidMemInfo.mapMem(ScreenNum, Base, Size, Flags);
-
- if (!vbase || vbase == (pointer)-1)
- return NULL;
-
- vp = getVidMapRec(ScreenNum);
- mp = newMapping(vp);
- mp->size = Size;
- mp->virtBase = vbase;
-
- /*
- * Check the "mtrr" option even when MTRR isn't supported to avoid
- * warnings about unrecognised options.
- */
- checkMtrrOption(vp);
-
- if (vp->mtrrEnabled && vidMemInfo.setWC) {
- if (Flags & (VIDMEM_MMIO | VIDMEM_MMIO_32BIT))
- mp->mtrrInfo =
- vidMemInfo.setWC(ScreenNum, Base, Size, FALSE,
- vp->mtrrFrom);
- else if (Flags & VIDMEM_FRAMEBUFFER)
- mp->mtrrInfo =
- vidMemInfo.setWC(ScreenNum, Base, Size, TRUE,
- vp->mtrrFrom);
- }
- return vbase;
+ pointer vbase = NULL;
+ VidMapPtr vp;
+ MappingPtr mp;
+
+ if (((Flags & VIDMEM_FRAMEBUFFER) &&
+ (Flags & (VIDMEM_MMIO | VIDMEM_MMIO_32BIT))))
+ FatalError("Mapping memory with more than one type\n");
+
+ xf86InitVidMem();
+ if (!vidMemInfo.initialised || !vidMemInfo.mapMem)
+ return NULL;
+
+ vbase = vidMemInfo.mapMem(ScreenNum, Base, Size, Flags);
+
+ if (!vbase || vbase == (pointer) -1)
+ return NULL;
+
+ vp = getVidMapRec(ScreenNum);
+ mp = newMapping(vp);
+ mp->size = Size;
+ mp->virtBase = vbase;
+
+ /*
+ * Check the "mtrr" option even when MTRR isn't supported to avoid
+ * warnings about unrecognised options.
+ */
+ checkMtrrOption(vp);
+
+ if (vp->mtrrEnabled && vidMemInfo.setWC) {
+ if (Flags & (VIDMEM_MMIO | VIDMEM_MMIO_32BIT))
+ mp->mtrrInfo =
+ vidMemInfo.setWC(ScreenNum, Base, Size, FALSE, vp->mtrrFrom);
+ else if (Flags & VIDMEM_FRAMEBUFFER)
+ mp->mtrrInfo =
+ vidMemInfo.setWC(ScreenNum, Base, Size, TRUE, vp->mtrrFrom);
+ }
+ return vbase;
}
void
xf86UnMapVidMem(int ScreenNum, pointer Base, unsigned long Size)
{
- VidMapPtr vp;
- MappingPtr mp;
-
- if (!vidMemInfo.initialised || !vidMemInfo.unmapMem) {
- xf86DrvMsg(ScreenNum, X_WARNING,
- "xf86UnMapVidMem() called before xf86MapVidMem()\n");
- return;
- }
-
- vp = getVidMapRec(ScreenNum);
- mp = findMapping(vp, Base, Size);
- if (!mp) {
- xf86DrvMsg(ScreenNum, X_WARNING,
- "xf86UnMapVidMem: cannot find region for [%p,0x%lx]\n",
- Base, Size);
- return;
- }
- if (vp->mtrrEnabled && vidMemInfo.undoWC && mp)
- vidMemInfo.undoWC(ScreenNum, mp->mtrrInfo);
-
- vidMemInfo.unmapMem(ScreenNum, Base, Size);
- removeMapping(vp, mp);
+ VidMapPtr vp;
+ MappingPtr mp;
+
+ if (!vidMemInfo.initialised || !vidMemInfo.unmapMem) {
+ xf86DrvMsg(ScreenNum, X_WARNING,
+ "xf86UnMapVidMem() called before xf86MapVidMem()\n");
+ return;
+ }
+
+ vp = getVidMapRec(ScreenNum);
+ mp = findMapping(vp, Base, Size);
+ if (!mp) {
+ xf86DrvMsg(ScreenNum, X_WARNING,
+ "xf86UnMapVidMem: cannot find region for [%p,0x%lx]\n",
+ Base, Size);
+ return;
+ }
+ if (vp->mtrrEnabled && vidMemInfo.undoWC && mp)
+ vidMemInfo.undoWC(ScreenNum, mp->mtrrInfo);
+
+ vidMemInfo.unmapMem(ScreenNum, Base, Size);
+ removeMapping(vp, mp);
}
Bool
xf86CheckMTRR(int ScreenNum)
{
- VidMapPtr vp = getVidMapRec(ScreenNum);
-
- /*
- * Check the "mtrr" option even when MTRR isn't supported to avoid
- * warnings about unrecognised options.
- */
- checkMtrrOption(vp);
-
- if (vp->mtrrEnabled && vidMemInfo.setWC)
- return TRUE;
-
- return FALSE;
+ VidMapPtr vp = getVidMapRec(ScreenNum);
+
+ /*
+ * Check the "mtrr" option even when MTRR isn't supported to avoid
+ * warnings about unrecognised options.
+ */
+ checkMtrrOption(vp);
+
+ if (vp->mtrrEnabled && vidMemInfo.setWC)
+ return TRUE;
+
+ return FALSE;
}
Bool
xf86LinearVidMem(void)
{
- xf86InitVidMem();
- return vidMemInfo.linearSupported;
+ xf86InitVidMem();
+ return vidMemInfo.linearSupported;
}
void
xf86MapReadSideEffects(int ScreenNum, int Flags, pointer base,
- unsigned long Size)
+ unsigned long Size)
{
- if (!(Flags & VIDMEM_READSIDEEFFECT))
- return;
+ if (!(Flags & VIDMEM_READSIDEEFFECT))
+ return;
- if (!vidMemInfo.initialised || !vidMemInfo.readSideEffects)
- return;
+ if (!vidMemInfo.initialised || !vidMemInfo.readSideEffects)
+ return;
- vidMemInfo.readSideEffects(ScreenNum, base, Size);
+ vidMemInfo.readSideEffects(ScreenNum, base, Size);
}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 03:58:10 +0000