From 02b70c8c9f0351f5ddf70716b9049f3fe50d62e7 Mon Sep 17 00:00:00 2001 From: Jammy Zhou Date: Tue, 12 May 2015 22:46:45 +0800 Subject: [PATCH] drm/amdgpu: expose the max virtual address MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Signed-off-by: Jammy Zhou Reviewed-by: Christian König --- drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 1 + include/uapi/drm/amdgpu_drm.h | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 02c450d..35185d6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -428,6 +428,7 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file if (adev->flags & AMDGPU_IS_APU) dev_info.ids_flags |= AMDGPU_IDS_FLAGS_FUSION; dev_info.virtual_address_offset = AMDGPU_VA_RESERVED_SIZE; + dev_info.virtual_address_max = (uint64_t)adev->vm_manager.max_pfn * AMDGPU_GPU_PAGE_SIZE; dev_info.virtual_address_alignment = max(PAGE_SIZE, 0x10000UL); dev_info.pte_fragment_size = (1 << AMDGPU_LOG2_PAGES_PER_FRAG) * AMDGPU_GPU_PAGE_SIZE; diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h index fb428fe..65da7cd 100644 --- a/include/uapi/drm/amdgpu_drm.h +++ b/include/uapi/drm/amdgpu_drm.h @@ -560,6 +560,8 @@ struct drm_amdgpu_info_device { uint64_t ids_flags; /** Starting virtual address for UMDs. */ uint64_t virtual_address_offset; + /** The maximum virtual address */ + uint64_t virtual_address_max; /** Required alignment of virtual addresses. */ uint32_t virtual_address_alignment; /** Page table entry - fragment size */ -- 2.7.4