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Diffstat (limited to 'linux-core/ati_pcigart.c')
-rw-r--r--linux-core/ati_pcigart.c20
1 files changed, 15 insertions, 5 deletions
diff --git a/linux-core/ati_pcigart.c b/linux-core/ati_pcigart.c
index beaa4424..09251ac3 100644
--- a/linux-core/ati_pcigart.c
+++ b/linux-core/ati_pcigart.c
@@ -34,6 +34,11 @@
#include "drmP.h"
# 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)
{
@@ -103,6 +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");
@@ -148,23 +154,27 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga
bus_address = 0;
goto done;
}
- page_base = (u32) entry->busaddr[i];
+ 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:
- *pci_gart = cpu_to_le32((page_base) | 0xc);
+ page_base |= (upper_32_bits(entry_addr) & 0xff) << 4;
+ page_base |= 0xc;
break;
case DRM_ATI_GART_PCIE:
- *pci_gart = cpu_to_le32((page_base >> 8) | 0xc);
+ page_base >>= 8;
+ page_base |= (upper_32_bits(entry_addr) & 0xff) << 24;
+ page_base |= ATI_PCIE_READ | ATI_PCIE_WRITE;
break;
default:
case DRM_ATI_GART_PCI:
- *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;
}
}