summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/radeon/rs400.c
diff options
context:
space:
mode:
authorDave Airlie <airlied@redhat.com>2009-06-29 18:29:11 +1000
committerDave Airlie <airlied@redhat.com>2009-07-15 17:13:02 +1000
commited10f95d60d41033d356fdcf88c240d7065bd5b4 (patch)
tree319558df2249b066c6678c2b54a8ae2fdfa7ae5c /drivers/gpu/drm/radeon/rs400.c
parent44b572809581d5a10dbe35aa6bf689f32b9c5ad6 (diff)
downloadblackbird-op-linux-ed10f95d60d41033d356fdcf88c240d7065bd5b4.tar.gz
blackbird-op-linux-ed10f95d60d41033d356fdcf88c240d7065bd5b4.zip
drm/radeon/kms: fix some GART table entry bugs.
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>
Diffstat (limited to 'drivers/gpu/drm/radeon/rs400.c')
-rw-r--r--drivers/gpu/drm/radeon/rs400.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/rs400.c b/drivers/gpu/drm/radeon/rs400.c
index cc074b5a8f74..3275de4b6e3b 100644
--- a/drivers/gpu/drm/radeon/rs400.c
+++ b/drivers/gpu/drm/radeon/rs400.c
@@ -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;
}
OpenPOWER on IntegriCloud