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| author | Christian König <christian.koenig@amd.com> | 2017-11-07 12:03:31 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-12-06 12:48:05 -0500 |
| commit | 5b565e0e5a9872f8c5a459ce53f8d6a4b19a1a66 (patch) | |
| tree | ad326d1021db14885adf202646210ef4a8f30878 /drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | |
| parent | 4b7f0848c4e1e7a92cc3c0243a38a8f183c9b869 (diff) | |
| download | lwn-5b565e0e5a9872f8c5a459ce53f8d6a4b19a1a66.tar.gz lwn-5b565e0e5a9872f8c5a459ce53f8d6a4b19a1a66.zip | |
drm/amdgpu: expose the VA above the hole to userspace
Let userspace know how much area we have above the 48bit VA hole on
Vega10.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 2614269c4d7f..3222e1d4636c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -550,6 +550,7 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file } case AMDGPU_INFO_DEV_INFO: { struct drm_amdgpu_info_device dev_info = {}; + uint64_t vm_size; dev_info.device_id = dev->pdev->device; dev_info.chip_rev = adev->rev_id; @@ -577,10 +578,17 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file dev_info.ids_flags |= AMDGPU_IDS_FLAGS_FUSION; if (amdgpu_sriov_vf(adev)) dev_info.ids_flags |= AMDGPU_IDS_FLAGS_PREEMPTION; + + vm_size = adev->vm_manager.max_pfn * AMDGPU_GPU_PAGE_SIZE; dev_info.virtual_address_offset = AMDGPU_VA_RESERVED_SIZE; dev_info.virtual_address_max = - min(adev->vm_manager.max_pfn * AMDGPU_GPU_PAGE_SIZE, - AMDGPU_VA_HOLE_START); + min(vm_size, AMDGPU_VA_HOLE_START); + + vm_size -= AMDGPU_VA_RESERVED_SIZE; + if (vm_size > AMDGPU_VA_HOLE_START) { + dev_info.high_va_offset = AMDGPU_VA_HOLE_END; + dev_info.high_va_max = AMDGPU_VA_HOLE_END | vm_size; + } dev_info.virtual_address_alignment = max((int)PAGE_SIZE, AMDGPU_GPU_PAGE_SIZE); dev_info.pte_fragment_size = (1 << adev->vm_manager.fragment_size) * AMDGPU_GPU_PAGE_SIZE; dev_info.gart_page_size = AMDGPU_GPU_PAGE_SIZE; |