Bool
I830UnbindGARTMemory(ScrnInfoPtr pScrn)
{
I830Ptr pI830 = I830PTR(pScrn);
DPRINTF(PFX,
"I830UnbindGARTMemory: StolenOnly is %s, pI830->GttBound is %s\n",
BOOLTOSTRING(pI830->StolenOnly), BOOLTOSTRING(pI830->GttBound));
if (pI830->StolenOnly == TRUE)
return TRUE;
if (xf86AgpGARTSupported() && pI830->GttBound) {
#if REMAP_RESERVED
/* "unbind" the pre-allocated region. */
UnbindMemRange(pScrn, &(pI830->Dummy));
#endif
if (!UnbindMemRange(pScrn, &(pI830->StolenPool.Allocated)))
return FALSE;
if (!UnbindMemRange(pScrn, &(pI830->FrontBuffer)))
return FALSE;
if (!UnbindMemRange(pScrn, &(pI830->CursorMem)))
return FALSE;
if (!UnbindMemRange(pScrn, &(pI830->LpRing.mem)))
return FALSE;
if (!UnbindMemRange(pScrn, &(pI830->Scratch)))
return FALSE;
#ifdef I830_XV
if (!UnbindMemRange(pScrn, &(pI830->OverlayMem)))
return FALSE;
#endif
#ifdef XF86DRI
if (pI830->directRenderingEnabled) {
if (!UnbindMemRange(pScrn, &(pI830->BackBuffer)))
return FALSE;
if (!UnbindMemRange(pScrn, &(pI830->DepthBuffer)))
return FALSE;
if (!UnbindMemRange(pScrn, &(pI830->ContextMem)))
return FALSE;
if (!UnbindMemRange(pScrn, &(pI830->BufferMem)))
return FALSE;
if (!UnbindMemRange(pScrn, &(pI830->TexMem)))
return FALSE;
}
#endif
if (!xf86ReleaseGART(pScrn->scrnIndex))
return FALSE;
pI830->GttBound = 0;
}
return TRUE;
}
Bool
I830Allocate2DMemory(ScrnInfoPtr pScrn, const int flags)
{
I830Ptr pI830 = I830PTR(pScrn);
unsigned long size, alloced;
Bool dryrun = ((flags & ALLOCATE_DRY_RUN) != 0);
int verbosity = dryrun ? 4 : 1;
const char *s = dryrun ? "[dryrun] " : "";
Bool tileable;
int align, alignflags;
DPRINTF(PFX, "I830Allocate2DMemory: inital is %s\n",
BOOLTOSTRING(flags & ALLOC_INITIAL));
if (!pI830->StolenOnly &&
(!xf86AgpGARTSupported() || !xf86AcquireGART(pScrn->scrnIndex))) {
if (!dryrun) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"AGP GART support is either not available or cannot "
"be used.\n"
"\tMake sure your kernel has agpgart support or has the\n"
"\tagpgart module loaded.\n");
}
return FALSE;
}
/*
* The I830 is slightly different from the I830/I815, it has no
* dcache and it has stolen memory by default in its gtt. All
* additional memory must go after it.
*/
DPRINTF(PFX,
"size == %luk (%lu bytes == pScrn->videoRam)\n"
"pI830->StolenSize == %luk (%lu bytes)\n",
pScrn->videoRam, pScrn->videoRam * 1024,
pI830->StolenPool.Free.Size / 1024,
pI830->StolenPool.Free.Size);
if (flags & ALLOC_INITIAL) {
unsigned long minspace, avail, lineSize;
int cacheLines, maxCacheLines;
if (pI830->NeedRingBufferLow)
AllocateRingBuffer(pScrn, flags | FORCE_LOW);
/* Clear everything first. */
memset(&(pI830->FbMemBox), 0, sizeof(pI830->FbMemBox));
memset(&(pI830->FrontBuffer), 0, sizeof(pI830->FrontBuffer));
pI830->FrontBuffer.Key = -1;
pI830->FbMemBox.x1 = 0;
pI830->FbMemBox.x2 = pScrn->displayWidth;
pI830->FbMemBox.y1 = 0;
pI830->FbMemBox.y2 = pScrn->virtualY;
/*
* Calculate how much framebuffer memory to allocate. For the
* initial allocation, calculate a reasonable minimum. This is
* enough for the virtual screen size, plus some pixmap cache
* space.
*/
lineSize = pScrn->displayWidth * pI830->cpp;
minspace = lineSize * pScrn->virtualY;
avail = pScrn->videoRam * 1024;
maxCacheLines = (avail - minspace) / lineSize;
/* This shouldn't happen. */
if (maxCacheLines < 0) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Internal Error: "
"maxCacheLines < 0 in I830Allocate2DMemory()\n");
maxCacheLines = 0;
}
if (maxCacheLines > (MAX_DISPLAY_HEIGHT - pScrn->virtualY))
maxCacheLines = MAX_DISPLAY_HEIGHT - pScrn->virtualY;
if (pI830->CacheLines >= 0) {
cacheLines = pI830->CacheLines;
} else {
#if 1
/* Make sure there is enough for two DVD sized YUV buffers */
cacheLines = (pScrn->depth == 24) ? 256 : 384;
if (pScrn->displayWidth <= 1024)
cacheLines *= 2;
#else
/*
* Make sure there is enough for two DVD sized YUV buffers.
* Make that 1.5MB, which is around what was allocated with
* the old algorithm
*/
cacheLines = (MB(1) + KB(512)) / pI830->cpp / pScrn->displayWidth;
#endif
}
if (cacheLines > maxCacheLines)
cacheLines = maxCacheLines;
pI830->FbMemBox.y2 += cacheLines;
xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, verbosity,
"%sAllocating at least %d scanlines for pixmap cache\n",
s, cacheLines);
tileable = !(flags & ALLOC_NO_TILING) && pI830->allowPageFlip &&
IsTileable(pScrn->displayWidth * pI830->cpp);
if (tileable) {
align = KB(512);
alignflags = ALIGN_BOTH_ENDS;
} else {
align = KB(64);
alignflags = 0;
}
size = lineSize * (pScrn->virtualY + cacheLines);
size = ROUND_TO_PAGE(size);
xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, verbosity,
"%sInitial framebuffer allocation size: %d kByte\n", s,
size / 1024);
alloced = I830AllocVidMem(pScrn, &(pI830->FrontBuffer),
&(pI830->StolenPool), size, align,
flags | alignflags |
FROM_ANYWHERE | ALLOCATE_AT_BOTTOM);
if (alloced < size) {
if (!dryrun) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Failed to allocate framebuffer.\n");
}
return FALSE;
}
} else {
unsigned long lineSize;
unsigned long extra = 0;
unsigned long maxFb = 0;
/*
* XXX Need to "free" up any 3D allocations if the DRI ended up
* and make them available for 2D. The best way to do this would
* be position all of those regions contiguously at the end of the
* StolenPool.
*/
extra = GetFreeSpace(pScrn);
if (extra == 0)
return TRUE;
maxFb = pI830->FrontBuffer.Size + extra;
lineSize = pScrn->displayWidth * pI830->cpp;
maxFb = ROUND_DOWN_TO(maxFb, lineSize);
if (maxFb > lineSize * MAX_DISPLAY_HEIGHT)
maxFb = lineSize * MAX_DISPLAY_HEIGHT;
if (maxFb > pI830->FrontBuffer.Size) {
unsigned long oldsize;
/*
* Sanity check -- the fb should be the last thing allocated at
* the bottom of the stolen pool.
*/
if (pI830->StolenPool.Free.Start != pI830->FrontBuffer.End) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Internal error in I830Allocate2DMemory():\n\t"
"Framebuffer isn't the last allocation at the bottom"
" of StolenPool\n\t(%x != %x).\n",
pI830->FrontBuffer.End,
pI830->StolenPool.Free.Start);
return FALSE;
}
/*
* XXX Maybe should have a "Free" function. This should be
* the only place where a region is resized, and we know that
* the fb is always at the bottom of the aperture/stolen pool,
* and is the only region that is allocated bottom-up.
* Allowing for more general realloction would require a smarter
* allocation system.
*/
oldsize = pI830->FrontBuffer.Size;
pI830->StolenPool.Free.Size += pI830->FrontBuffer.Size;
pI830->StolenPool.Free.Start -= pI830->FrontBuffer.Size;
xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, verbosity,
"%sUpdated framebuffer allocation size from %d "
"to %d kByte\n", s, oldsize / 1024, maxFb / 1024);
xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, verbosity,
"%sUpdated pixmap cache from %d scanlines to %d "
"scanlines\n", s,
oldsize / lineSize - pScrn->virtualY,
maxFb / lineSize - pScrn->virtualY);
pI830->FbMemBox.y2 = maxFb / lineSize;
tileable = !(flags & ALLOC_NO_TILING) && pI830->allowPageFlip &&
IsTileable(pScrn->displayWidth * pI830->cpp);
if (tileable) {
align = KB(512);
alignflags = ALIGN_BOTH_ENDS;
} else {
align = KB(64);
alignflags = 0;
}
alloced = I830AllocVidMem(pScrn, &(pI830->FrontBuffer),
&(pI830->StolenPool), maxFb, align,
flags | alignflags |
FROM_ANYWHERE | ALLOCATE_AT_BOTTOM);
if (alloced < maxFb) {
if (!dryrun) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Failed to re-allocate framebuffer\n");
}
return FALSE;
}
}
return TRUE;
}
#if REMAP_RESERVED
/*
* Allocate a dummy page to pass when attempting to rebind the
* pre-allocated region.
*/
if (!dryrun) {
memset(&(pI830->Dummy), 0, sizeof(pI830->Dummy));
pI830->Dummy.Key =
xf86AllocateGARTMemory(pScrn->scrnIndex, size, 0, NULL);
pI830->Dummy.Offset = 0;
}
#endif
/* Clear cursor info */
memset(&(pI830->CursorMem), 0, sizeof(pI830->CursorMem));
pI830->CursorMem.Key = -1;
if (!pI830->SWCursor) {
int cursFlags = 0;
/*
* Mouse cursor -- The i810-i830 need a physical address in system
* memory from which to upload the cursor. We get this from
* the agpgart module using a special memory type.
*/
size = HWCURSOR_SIZE;
cursFlags = FROM_ANYWHERE | ALLOCATE_AT_TOP;
if (pI830->CursorNeedsPhysical)
cursFlags |= NEED_PHYSICAL_ADDR;
alloced = I830AllocVidMem(pScrn, &(pI830->CursorMem),
&(pI830->StolenPool), size,
GTT_PAGE_SIZE, flags | cursFlags);
if (alloced < size) {
if (!dryrun) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Failed to allocate HW cursor space.\n");
}
} else {
xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, verbosity,
"%sAllocated %d kB for HW cursor at 0x%x", s,
alloced / 1024, pI830->CursorMem.Start);
if (pI830->CursorNeedsPhysical)
xf86ErrorFVerb(verbosity, " (0x%08x)", pI830->CursorMem.Physical);
xf86ErrorFVerb(verbosity, "\n");
}
}
#ifdef I830_XV
AllocateOverlay(pScrn, flags);
#endif
if (!pI830->NeedRingBufferLow)
AllocateRingBuffer(pScrn, flags);
/* Clear scratch info */
memset(&(pI830->Scratch), 0, sizeof(pI830->Scratch));
pI830->Scratch.Key = -1;
if (!pI830->noAccel) {
size = MAX_SCRATCH_BUFFER_SIZE;
alloced = I830AllocVidMem(pScrn, &(pI830->Scratch), &(pI830->StolenPool),
size, GTT_PAGE_SIZE,
flags | FROM_ANYWHERE | ALLOCATE_AT_TOP);
if (alloced < size) {
size = MIN_SCRATCH_BUFFER_SIZE;
alloced = I830AllocVidMem(pScrn, &(pI830->Scratch),
&(pI830->StolenPool), size,
GTT_PAGE_SIZE,
flags | FROM_ANYWHERE | ALLOCATE_AT_TOP);
}
if (alloced < size) {
if (!dryrun) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Failed to allocate scratch buffer space\n");
}
return FALSE;
}
xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, verbosity,
"%sAllocated %d kB for the scratch buffer at 0x%x\n", s,
alloced / 1024, pI830->Scratch.Start);
}
return TRUE;
}
/*
* xf86VTSwitch --
* Handle requests for switching the vt.
*/
static void
xf86VTSwitch(void)
{
int i;
static int prevSIGIO;
InputInfoPtr pInfo;
IHPtr ih;
DebugF("xf86VTSwitch()\n");
#ifdef XFreeXDGA
if(!DGAVTSwitch())
return;
#endif
/*
* Since all screens are currently all in the same state it is sufficient
* check the first. This might change in future.
*/
if (xf86Screens[0]->vtSema) {
DebugF("xf86VTSwitch: Leaving, xf86Exiting is %s\n",
BOOLTOSTRING((dispatchException & DE_TERMINATE) ? TRUE : FALSE));
#ifdef DPMSExtension
if (DPMSPowerLevel != DPMSModeOn)
DPMSSet(serverClient, DPMSModeOn);
#endif
for (i = 0; i < xf86NumScreens; i++) {
if (!(dispatchException & DE_TERMINATE))
if (xf86Screens[i]->EnableDisableFBAccess)
(*xf86Screens[i]->EnableDisableFBAccess) (i, FALSE);
}
/*
* Keep the order: Disable Device > LeaveVT
* EnterVT > EnableDevice
*/
for (ih = InputHandlers; ih; ih = ih->next)
xf86DisableInputHandler(ih);
for (pInfo = xf86InputDevs; pInfo; pInfo = pInfo->next) {
if (pInfo->dev) {
xf86ReleaseKeys(pInfo->dev);
ProcessInputEvents();
DisableDevice(pInfo->dev, TRUE);
}
}
prevSIGIO = xf86BlockSIGIO();
for (i = 0; i < xf86NumScreens; i++)
xf86Screens[i]->LeaveVT(i, 0);
xf86AccessLeave(); /* We need this here, otherwise */
if (!xf86VTSwitchAway()) {
/*
* switch failed
*/
DebugF("xf86VTSwitch: Leave failed\n");
xf86AccessEnter();
for (i = 0; i < xf86NumScreens; i++) {
if (!xf86Screens[i]->EnterVT(i, 0))
FatalError("EnterVT failed for screen %d\n", i);
}
if (!(dispatchException & DE_TERMINATE)) {
for (i = 0; i < xf86NumScreens; i++) {
if (xf86Screens[i]->EnableDisableFBAccess)
(*xf86Screens[i]->EnableDisableFBAccess) (i, TRUE);
}
}
dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset);
pInfo = xf86InputDevs;
while (pInfo) {
if (pInfo->dev)
EnableDevice(pInfo->dev, TRUE);
pInfo = pInfo->next;
}
for (ih = InputHandlers; ih; ih = ih->next)
xf86EnableInputHandler(ih);
xf86UnblockSIGIO(prevSIGIO);
} else {
#ifdef XF86PM
if (xf86OSPMClose)
xf86OSPMClose();
xf86OSPMClose = NULL;
#endif
for (i = 0; i < xf86NumScreens; i++) {
/*
* zero all access functions to
* trap calls when switched away.
*/
xf86Screens[i]->vtSema = FALSE;
}
if (xorgHWAccess)
xf86DisableIO();
}
} else {
DebugF("xf86VTSwitch: Entering\n");
if (!xf86VTSwitchTo()) return;
#ifdef XF86PM
xf86OSPMClose = xf86OSPMOpen();
#endif
if (xorgHWAccess)
xf86EnableIO();
xf86AccessEnter();
for (i = 0; i < xf86NumScreens; i++) {
xf86Screens[i]->vtSema = TRUE;
if (!xf86Screens[i]->EnterVT(i, 0))
FatalError("EnterVT failed for screen %d\n", i);
}
for (i = 0; i < xf86NumScreens; i++) {
if (xf86Screens[i]->EnableDisableFBAccess)
(*xf86Screens[i]->EnableDisableFBAccess)(i, TRUE);
}
/* Turn screen saver off when switching back */
dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset);
pInfo = xf86InputDevs;
while (pInfo) {
if (pInfo->dev)
EnableDevice(pInfo->dev, TRUE);
pInfo = pInfo->next;
}
for (ih = InputHandlers; ih; ih = ih->next)
xf86EnableInputHandler(ih);
xf86UnblockSIGIO(prevSIGIO);
}
}
