On 10/23/2018 01:12 PM, Zhang, Jerry(Junwei) wrote:
On 10/23/2018 11:29 AM, Rex Zhu wrote:
when the VA address located in the last PD entries,
the alloc_pts will faile.
Use the right PD mask instand of hardcode, suggested
by jerry.zhang.
Signed-off-by: Rex Zhu <rex....@amd.com>
Thanks to verify that.
Feel free to add
Reviewed-by: Junwei Zhang <jerry.zh...@amd.com>
Also like to get to know some background about these two functions
from Christian.
Perhaps we may make it more simple, e.g. merging them together.
If we really needs them all, we may simplify that like:
```
amdgpu_vm_entries_mask(struct amdgpu_device *adev, unsigned int level)
{
return amdgpu_vm_num_entries(adev, level) - 1;
}
```
Jerry
Regards,
Jerry
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 054633b..3939013 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -202,8 +202,11 @@ static unsigned amdgpu_vm_num_entries(struct
amdgpu_device *adev,
static uint32_t amdgpu_vm_entries_mask(struct amdgpu_device *adev,
unsigned int level)
{
+ unsigned shift = amdgpu_vm_level_shift(adev,
+ adev->vm_manager.root_level);
+
if (level <= adev->vm_manager.root_level)
- return 0xffffffff;
+ return (round_up(adev->vm_manager.max_pfn, 1 << shift) >>
shift) - 1;
else if (level != AMDGPU_VM_PTB)
return 0x1ff;
else
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