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path: root/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
index b99c5cfc0564..1945fe842188 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
@@ -469,7 +469,8 @@ static void gmc_v6_0_set_prt(struct amdgpu_device *adev, bool enable)
if (enable) {
uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT;
- uint32_t high = adev->vm_manager.max_pfn;
+ uint32_t high = adev->vm_manager.max_pfn -
+ (AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT);
WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);