Bool
I810UnbindGARTMemory(ScrnInfoPtr pScrn)
{
I810Ptr pI810 = I810PTR(pScrn);
if (xf86AgpGARTSupported() && !pI810->directRenderingEnabled
&& pI810->GttBound) {
if (pI810->VramKey != -1
&& !xf86UnbindGARTMemory(pScrn->scrnIndex, pI810->VramKey))
return FALSE;
if (pI810->DcacheKey != -1
&& !xf86UnbindGARTMemory(pScrn->scrnIndex, pI810->DcacheKey))
return FALSE;
if (pI810->HwcursKey != -1
&& !xf86UnbindGARTMemory(pScrn->scrnIndex, pI810->HwcursKey))
return FALSE;
if (pI810->ARGBHwcursKey != -1
&& !xf86UnbindGARTMemory(pScrn->scrnIndex, pI810->ARGBHwcursKey))
return FALSE;
if (!xf86ReleaseGART(pScrn->scrnIndex))
return FALSE;
pI810->GttBound = 0;
}
return TRUE;
}
/*
* Open /dev/agpgart. Keep it open until xf86GARTCloseScreen is called.
*/
static Bool
GARTInit(int screenNum)
{
struct _agp_info agpinf;
if (initDone)
return gartFd != -1;
initDone = TRUE;
if (gartFd == -1)
gartFd = open(AGP_DEVICE, O_RDWR, 0);
else
return FALSE;
if (gartFd == -1) {
xf86DrvMsg(screenNum, X_ERROR,
"GARTInit: Unable to open " AGP_DEVICE " (%s)\n",
strerror(errno));
return FALSE;
}
xf86AcquireGART(-1);
/* Check the kernel driver version. */
if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) {
xf86DrvMsg(screenNum, X_ERROR,
"GARTInit: AGPIOC_INFO failed (%s)\n", strerror(errno));
close(gartFd);
gartFd = -1;
return FALSE;
}
xf86ReleaseGART(-1);
#if defined(linux)
/* Per Dave Jones, every effort will be made to keep the
* agpgart interface backwards compatible, so allow all
* future versions.
*/
if (
#if (AGPGART_MAJOR_VERSION > 0) /* quiet compiler */
agpinf.version.major < AGPGART_MAJOR_VERSION ||
#endif
(agpinf.version.major == AGPGART_MAJOR_VERSION &&
agpinf.version.minor < AGPGART_MINOR_VERSION)) {
xf86DrvMsg(screenNum, X_ERROR,
"GARTInit: Kernel agpgart driver version is not current"
" (%d.%d vs %d.%d)\n",
agpinf.version.major, agpinf.version.minor,
AGPGART_MAJOR_VERSION, AGPGART_MINOR_VERSION);
close(gartFd);
gartFd = -1;
return FALSE;
}
#endif
return TRUE;
}
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;
}
int
I810CheckAvailableMemory(ScrnInfoPtr pScrn)
{
AgpInfoPtr agpinf;
int maxPages;
if (!xf86AgpGARTSupported() ||
!xf86AcquireGART(pScrn->scrnIndex) ||
(agpinf = xf86GetAGPInfo(pScrn->scrnIndex)) == NULL ||
!xf86ReleaseGART(pScrn->scrnIndex))
return -1;
maxPages = agpinf->totalPages - agpinf->usedPages;
xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, 2, "%s: %dk available\n",
"I810CheckAvailableMemory", maxPages * 4);
return maxPages * 4;
}
