From: Ken Wang Date: Thu, 4 Jun 2015 13:26:57 +0000 (+0800) Subject: drm/amdgpu: add ib_size/start_alignment interface query X-Git-Tag: v4.2-rc1~13^2~25^2~2 X-Git-Url: http://git.cascardo.eti.br/?a=commitdiff_plain;h=71062f435eaf0ff7867a1188e5c7887b0a5871ff;p=cascardo%2Flinux.git drm/amdgpu: add ib_size/start_alignment interface query Query the IB alignment requirements from the kernel rather than hardcoding them in the user mode drivers. Signed-off-by: Ken Wang Reviewed-by: Jammy Zhou --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 12b756e8c6b8..f1e5d87ef1f7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -188,6 +188,8 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file struct drm_amdgpu_info_hw_ip ip = {}; enum amd_ip_block_type type; uint32_t ring_mask = 0; + uint32_t ib_start_alignment = 0; + uint32_t ib_size_alignment = 0; if (info->query_hw_ip.ip_instance >= AMDGPU_HW_IP_INSTANCE_MAX_COUNT) return -EINVAL; @@ -197,25 +199,35 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file type = AMD_IP_BLOCK_TYPE_GFX; for (i = 0; i < adev->gfx.num_gfx_rings; i++) ring_mask |= ((adev->gfx.gfx_ring[i].ready ? 1 : 0) << i); + ib_start_alignment = AMDGPU_GPU_PAGE_SIZE; + ib_size_alignment = 8; break; case AMDGPU_HW_IP_COMPUTE: type = AMD_IP_BLOCK_TYPE_GFX; for (i = 0; i < adev->gfx.num_compute_rings; i++) ring_mask |= ((adev->gfx.compute_ring[i].ready ? 1 : 0) << i); + ib_start_alignment = AMDGPU_GPU_PAGE_SIZE; + ib_size_alignment = 8; break; case AMDGPU_HW_IP_DMA: type = AMD_IP_BLOCK_TYPE_SDMA; ring_mask = adev->sdma[0].ring.ready ? 1 : 0; ring_mask |= ((adev->sdma[1].ring.ready ? 1 : 0) << 1); + ib_start_alignment = AMDGPU_GPU_PAGE_SIZE; + ib_size_alignment = 1; break; case AMDGPU_HW_IP_UVD: type = AMD_IP_BLOCK_TYPE_UVD; ring_mask = adev->uvd.ring.ready ? 1 : 0; + ib_start_alignment = AMDGPU_GPU_PAGE_SIZE; + ib_size_alignment = 8; break; case AMDGPU_HW_IP_VCE: type = AMD_IP_BLOCK_TYPE_VCE; for (i = 0; i < AMDGPU_MAX_VCE_RINGS; i++) ring_mask |= ((adev->vce.ring[i].ready ? 1 : 0) << i); + ib_start_alignment = AMDGPU_GPU_PAGE_SIZE; + ib_size_alignment = 8; break; default: return -EINVAL; @@ -228,6 +240,8 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file ip.hw_ip_version_minor = adev->ip_blocks[i].minor; ip.capabilities_flags = 0; ip.available_rings = ring_mask; + ip.ib_start_alignment = ib_start_alignment; + ip.ib_size_alignment = ib_size_alignment; break; } } diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h index e24cc2e318df..3af5bd0e23a8 100644 --- a/include/uapi/drm/amdgpu_drm.h +++ b/include/uapi/drm/amdgpu_drm.h @@ -583,6 +583,10 @@ struct drm_amdgpu_info_hw_ip { uint32_t hw_ip_version_minor; /** Capabilities */ uint64_t capabilities_flags; + /** command buffer address start alignment*/ + uint32_t ib_start_alignment; + /** command buffer size alignment*/ + uint32_t ib_size_alignment; /** Bitmask of available rings. Bit 0 means ring 0, etc. */ uint32_t available_rings; uint32_t _pad;