diff options
| author | Jerome Glisse <jglisse@redhat.com> | 2011-11-03 19:16:49 +0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-11-04 14:39:51 +0400 |
| commit | c9a1be96277b3b2d2e8aff2ba69d7817ea8e46c9 (patch) | |
| tree | 7f27b6d926b44184f8ef089527be81d981c08b9f /drivers/gpu/drm/radeon/rs600.c | |
| parent | 0e2c978ef2248156f36db7fcda8c7b67998ec58a (diff) | |
| download | linux-c9a1be96277b3b2d2e8aff2ba69d7817ea8e46c9.tar.xz | |
drm/radeon/kms: consolidate GART code, fix segfault after GPU lockup V2
After GPU lockup VRAM gart table is unpinned and thus its pointer
becomes unvalid. This patch move the unpin code to a common helper
function and set pointer to NULL so that page update code can check
if it should update GPU page table or not. That way bo still bound
to GART can be unbound (pci_unmap_page for all there page) properly
while there is no need to update the GPU page table.
V2 move the test for null gart out of the loop, small optimization
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/rs600.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/rs600.c | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c index 02e0390daa8e..481b99e89f65 100644 --- a/drivers/gpu/drm/radeon/rs600.c +++ b/drivers/gpu/drm/radeon/rs600.c @@ -414,7 +414,7 @@ int rs600_gart_init(struct radeon_device *rdev) { int r; - if (rdev->gart.table.vram.robj) { + if (rdev->gart.robj) { WARN(1, "RS600 GART already initialized\n"); return 0; } @@ -432,7 +432,7 @@ static int rs600_gart_enable(struct radeon_device *rdev) u32 tmp; int r, i; - if (rdev->gart.table.vram.robj == NULL) { + if (rdev->gart.robj == NULL) { dev_err(rdev->dev, "No VRAM object for PCIE GART.\n"); return -EINVAL; } @@ -495,20 +495,12 @@ static int rs600_gart_enable(struct radeon_device *rdev) void rs600_gart_disable(struct radeon_device *rdev) { u32 tmp; - int r; /* FIXME: disable out of gart access */ WREG32_MC(R_000100_MC_PT0_CNTL, 0); tmp = RREG32_MC(R_000009_MC_CNTL1); WREG32_MC(R_000009_MC_CNTL1, tmp & C_000009_ENABLE_PAGE_TABLES); - if (rdev->gart.table.vram.robj) { - r = radeon_bo_reserve(rdev->gart.table.vram.robj, false); - if (r == 0) { - radeon_bo_kunmap(rdev->gart.table.vram.robj); - radeon_bo_unpin(rdev->gart.table.vram.robj); - radeon_bo_unreserve(rdev->gart.table.vram.robj); - } - } + radeon_gart_table_vram_unpin(rdev); } void rs600_gart_fini(struct radeon_device *rdev) @@ -526,7 +518,7 @@ void rs600_gart_fini(struct radeon_device *rdev) int rs600_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr) { - void __iomem *ptr = (void *)rdev->gart.table.vram.ptr; + void __iomem *ptr = (void *)rdev->gart.ptr; if (i < 0 || i > rdev->gart.num_gpu_pages) { return -EINVAL; |