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ati_pcigart: stop working in the evenings you mess up too often

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This commit is contained in:
Dave Airlie 2008-05-14 22:44:22 +10:00
parent 2712cdeec3
commit 4c6ec02eb8
1 changed files with 12 additions and 9 deletions
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21
linux-core/ati_pcigart.c
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@ -36,6 +36,9 @@
# define ATI_PCIGART_PAGE_SIZE 4096 /**< PCI GART page size */
# define ATI_PCIGART_PAGE_MASK (~(ATI_PCIGART_PAGE_SIZE-1))
#define ATI_PCIE_WRITE 0x4
#define ATI_PCIE_READ 0x8
static int drm_ati_alloc_pcigart_table(struct drm_device *dev,
struct drm_ati_pcigart_info *gart_info)
{
@ -105,6 +108,7 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga
dma_addr_t bus_address = 0;
int i, j, ret = 0;
int max_pages;
dma_addr_t entry_addr;
if (!entry) {
DRM_ERROR("no scatter/gather memory!\n");
@ -151,27 +155,26 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga
goto done;
}
entry_addr = entry->busaddr[i];
for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) {
page_base = (u32) entry_addr & ATI_PCIGART_PAGE_MASK;
switch(gart_info->gart_reg_if) {
case DRM_ATI_GART_IGP:
page_base = (u32) entry->busaddr[i] & ATI_PCIGART_PAGE_MASK;
page_base |= (upper_32_bits(entry->busaddr[i]) & 0xff) << 4;
*pci_gart = cpu_to_le32((page_base) | 0xc);
page_base |= (upper_32_bits(entry_addr) & 0xff) << 4;
page_base |= ATI_PCIE_READ | ATI_PCIE_WRITE;
break;
case DRM_ATI_GART_PCIE:
page_base = (u32)(entry->busaddr[i] & ATI_PCIGART_PAGE_MASK);
page_base >>= 8;
page_base |= (upper_32_bits(entry->busaddr[i]) & 0xff) << 24;
*pci_gart = cpu_to_le32((page_base >> 8) | 0xc);
page_base |= (upper_32_bits(entry_addr) & 0xff) << 24;
page_base |= 0xc;
break;
default:
case DRM_ATI_GART_PCI:
page_base = (u32) entry->busaddr[i];
*pci_gart = cpu_to_le32(page_base);
break;
}
*pci_gart = cpu_to_le32(page_base);
pci_gart++;
page_base += ATI_PCIGART_PAGE_SIZE;
entry_addr += ATI_PCIGART_PAGE_SIZE;
}
}