| 0,0 → 1,126 |
|---|
| |
| |
| static Bool |
| rhdMapMMIO(RHDPtr rhdPtr) |
| { |
| rhdPtr->MMIOMapSize = 1 << rhdPtr->memsize[RHD_MMIO_BAR]; |
| rhdPtr->MMIOBase = MapIoMem(rhdPtr->memBase[RHD_MMIO_BAR], |
| rhdPtr->MMIOMapSize,PG_SW+PG_NOCACHE); |
| if( rhdPtr->MMIOBase==0) |
| return 0; |
| |
| DBG(dbgprintf("Mapped IO at %x (size %x)\n", rhdPtr->MMIOBase, rhdPtr->MMIOMapSize)); |
| return 1; |
| } |
| |
| #define RADEON_NB_TOM 0x15c |
| |
| static CARD32 |
| rhdGetVideoRamSize(RHDPtr rhdPtr) |
| { |
| CARD32 RamSize, BARSize; |
| |
| if (rhdPtr->ChipSet == RHD_RS690) |
| RamSize = (_RHDRegRead(rhdPtr, R5XX_CONFIG_MEMSIZE))>>10; |
| else |
| if (rhdPtr->IsIGP) |
| { |
| CARD32 tom = _RHDRegRead(rhdPtr, RADEON_NB_TOM); |
| RamSize = (((tom >> 16) - (tom & 0xffff) + 1) << 6); |
| _RHDRegWrite(rhdPtr,R5XX_CONFIG_MEMSIZE, RamSize<<10); |
| } |
| else |
| { |
| if (rhdPtr->ChipSet < RHD_R600) |
| { |
| RamSize = (_RHDRegRead(rhdPtr, R5XX_CONFIG_MEMSIZE)) >> 10; |
| if(RamSize==0) RamSize=8192; |
| } |
| else |
| RamSize = (_RHDRegRead(rhdPtr, R6XX_CONFIG_MEMSIZE)) >> 10; |
| }; |
| |
| BARSize = 1 << (rhdPtr->memsize[RHD_FB_BAR] - 10); |
| if(BARSize==0) |
| BARSize = 0x20000; |
| |
| if (RamSize > BARSize) { |
| DBG(dbgprintf("The detected amount of videoram" |
| " exceeds the PCI BAR aperture.\n")); |
| DBG(dbgprintf("Using only %dkB of the total " |
| "%dkB.\n", (int) BARSize, (int) RamSize)); |
| return BARSize; |
| } |
| else return RamSize; |
| } |
| |
| static Bool |
| rhdMapFB(RHDPtr rhdPtr) |
| { |
| rhdPtr->FbMapSize = 1 << rhdPtr->memsize[RHD_FB_BAR]; |
| rhdPtr->PhisBase = rhdPtr->memBase[RHD_FB_BAR]; |
| |
| rhdPtr->FbBase = MapIoMem(rhdPtr->PhisBase, rhdPtr->FbMapSize,PG_SW+PG_NOCACHE); |
| |
| if (!rhdPtr->FbBase) |
| return FALSE; |
| |
| /* These devices have an internal address reference, which some other |
| * address registers in there also use. This can be different from the |
| * address in the BAR */ |
| if (rhdPtr->ChipSet < RHD_R600) |
| rhdPtr->FbIntAddress = _RHDRegRead(rhdPtr, HDP_FB_LOCATION)<< 16; |
| else |
| rhdPtr->FbIntAddress = _RHDRegRead(rhdPtr, R6XX_CONFIG_FB_BASE); |
| |
| // rhdPtr->FbIntAddress = _RHDRegRead(rhdPtr, 0x6110); |
| // dbgprintf("rhdPtr->FbIntAddress %x\n",rhdPtr->FbIntAddress); |
| |
| if (rhdPtr->FbIntAddress != rhdPtr->PhisBase) |
| dbgprintf("PCI FB Address (BAR) is at " |
| "0x%08X while card Internal Address is 0x%08X\n", |
| (unsigned int) rhdPtr->PhisBase,rhdPtr->FbIntAddress); |
| dbgprintf("Mapped FB at %p (size 0x%08X)\n",rhdPtr->FbBase, rhdPtr->FbMapSize); |
| return TRUE; |
| } |
| |
| Bool RHDPreInit() |
| { |
| /* We need access to IO space already */ |
| if (!rhdMapMMIO(&rhd)) { |
| dbgprintf("Failed to map MMIO.\n"); |
| return FALSE; |
| }; |
| |
| rhd.videoRam = rhdGetVideoRamSize(&rhd); |
| if (!rhd.videoRam) |
| { |
| dbgprintf("No Video RAM detected.\n"); |
| goto error1; |
| } |
| dbgprintf("VideoRAM: %d kByte\n",rhd.videoRam); |
| |
| rhd.FbFreeStart = 0; |
| rhd.FbFreeSize = rhd.videoRam << 10; |
| |
| if( !rhdMapFB(&rhd)) |
| return FALSE; |
| |
| rhd.FbScanoutStart = 0; |
| rhd.FbScanoutSize = 8*1024*1024; |
| rhd.FbFreeStart = 8*1024*1024; |
| rhd.FbFreeSize = rhd.FbMapSize - 8*1024*1024; |
| |
| rhdInitHeap(&rhd); |
| return TRUE; |
| |
| error1: |
| return FALSE; |
| }; |
| |
| int KernelFree(void *p) |
| { |
| |
| return 0; |
| } |
| |