diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c index 999e15945355..d73367cab4f3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c @@ -146,6 +146,8 @@ void amdgpu_gmc_gart_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc) { const uint64_t four_gb = 0x100000000ULL; u64 size_af, size_bf; + /*To avoid the hole, limit the max mc address to AMDGPU_GMC_HOLE_START*/ + u64 max_mc_address = min(adev->gmc.mc_mask, AMDGPU_GMC_HOLE_START - 1); mc->gart_size += adev->pm.smu_prv_buffer_size; @@ -153,7 +155,7 @@ void amdgpu_gmc_gart_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc) * the GART base on a 4GB boundary as well. */ size_bf = mc->fb_start; - size_af = adev->gmc.mc_mask + 1 - ALIGN(mc->fb_end + 1, four_gb); + size_af = max_mc_address + 1 - ALIGN(mc->fb_end + 1, four_gb); if (mc->gart_size > max(size_bf, size_af)) { dev_warn(adev->dev, "limiting GART\n"); @@ -164,7 +166,7 @@ void amdgpu_gmc_gart_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc) (size_af < mc->gart_size)) mc->gart_start = 0; else - mc->gart_start = mc->mc_mask - mc->gart_size + 1; + mc->gart_start = max_mc_address - mc->gart_size + 1; mc->gart_start &= ~(four_gb - 1); mc->gart_end = mc->gart_start + mc->gart_size - 1; |