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drm/radeon/kms: fix some GART table entry bugs.

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1. rv370 can accept 40-bit addresses - also at 24-bit shift not 4 bits
2. rs480 table can be in 40-bit space. - 4 bit shift for top 8 bits
3. rs480 table entries can be in 40-bit space.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2009-06-29 18:29:11 +10:00
parent 44b5728095
commit ed10f95d60
4 changed files with 16 additions and 5 deletions
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13
drivers/gpu/drm/radeon/rs400.c
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@@ -164,7 +164,9 @@ int rs400_gart_enable(struct radeon_device *rdev)
WREG32(RADEON_BUS_CNTL, tmp);
}
/* Table should be in 32bits address space so ignore bits above. */
tmp = rdev->gart.table_addr & 0xfffff000;
tmp = (u32)rdev->gart.table_addr & 0xfffff000;
tmp |= (upper_32_bits(rdev->gart.table_addr) & 0xff) << 4;
WREG32_MC(RS480_GART_BASE, tmp);
/* TODO: more tweaking here */
WREG32_MC(RS480_GART_FEATURE_ID,
@@ -201,10 +203,17 @@ void rs400_gart_disable(struct radeon_device *rdev)
int rs400_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr)
{
uint32_t entry;
if (i < 0 || i > rdev->gart.num_gpu_pages) {
return -EINVAL;
}
rdev->gart.table.ram.ptr[i] = cpu_to_le32(((uint32_t)addr) | 0xC);
entry = (lower_32_bits(addr) & PAGE_MASK) |
((upper_32_bits(addr) & 0xff) << 4) |
0xc;
entry = cpu_to_le32(entry);
rdev->gart.table.ram.ptr[i] = entry;
return 0;
}