From: Christian König <christian.koenig@xxxxxxx>
I always wondered why this code uses the MC address. Now it came to me that
this is actually a bug and only works by coincident because we used to have
VRAM mapped at zero.
Signed-off-by: Christian König <christian.koenig at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 2 +-
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index e4c5d31..ba6eb73 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -884,7 +884,7 @@ static int amdgpu_cs_ib_vm_chunk(struct amdgpu_device *adev,
}
if (p->job->vm) {
- p->job->vm_pd_addr = amdgpu_bo_gpu_offset(vm->root.bo);
+ p->job->vm_pd_addr = vm->root.bo->tbo.mem.start << PAGE_SHIFT;
r = amdgpu_bo_vm_update_pte(p);
if (r)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index b877f9f3..7256fcc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1012,7 +1012,7 @@ static int amdgpu_vm_update_level(struct amdgpu_device *adev,
return r;
}
- pt = amdgpu_bo_gpu_offset(bo);
+ pt = bo->tbo.mem.start << PAGE_SHIFT;
if (parent->entries[pt_idx].addr == pt)
continue;
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 047b1a7..63cb573 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -360,7 +360,7 @@ static uint64_t gmc_v9_0_get_vm_pte_flags(struct amdgpu_device *adev,
static u64 gmc_v9_0_get_vm_pde(struct amdgpu_device *adev, u64 addr)
{
- addr = adev->vm_manager.vram_base_offset + addr - adev->mc.vram_start;
+ addr = adev->vm_manager.vram_base_offset + addr;
BUG_ON(addr & 0xFFFF00000000003FULL);
return addr;
}
--
2.7.4
