Commit 06ea4c34 authored by wentalou's avatar wentalou Committed by Alex Deucher

drm/amdgpu: csa_vaddr should not larger than AMDGPU_GMC_HOLE_START

After removing unnecessary VM size calculations,
vm_manager.max_pfn would reach 0x10,0000,0000
max_pfn << AMDGPU_GPU_PAGE_SHIFT exceeding AMDGPU_GMC_HOLE_START
would cause GPU reset.
Signed-off-by: default avatarwentalou <Wentao.Lou@amd.com>
Reviewed-by: default avatarMonk Liu <monk.liu@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent a97c084a
...@@ -26,7 +26,8 @@ ...@@ -26,7 +26,8 @@
uint64_t amdgpu_csa_vaddr(struct amdgpu_device *adev) uint64_t amdgpu_csa_vaddr(struct amdgpu_device *adev)
{ {
uint64_t addr = adev->vm_manager.max_pfn << AMDGPU_GPU_PAGE_SHIFT; uint64_t addr = min(adev->vm_manager.max_pfn << AMDGPU_GPU_PAGE_SHIFT,
AMDGPU_GMC_HOLE_START);
addr -= AMDGPU_VA_RESERVED_SIZE; addr -= AMDGPU_VA_RESERVED_SIZE;
addr = amdgpu_gmc_sign_extend(addr); addr = amdgpu_gmc_sign_extend(addr);
......
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