[PATCH 1/2] drm/amdgpu: add the IP discovery IP versions for HW INFO data

[Alex Deucher]

Use the former pad element to store the IP versions from the
IP discovery table.  This allows userspace to get the IP
version from the kernel to better align with hardware IP
versions.

Proposed mesa patch:
https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17411/diffs?commit_id=c8a63590dfd0d64e6e6a634dcfed993f135dd075

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 24 ++++++++++++++++++++++++
 include/uapi/drm/amdgpu_drm.h           |  3 ++-
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 4b44a4bc2fb3..7e03f3719d11 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -473,6 +473,30 @@ static int amdgpu_hw_ip_info(struct amdgpu_device *adev,
 
 	result->hw_ip_version_major = adev->ip_blocks[i].version->major;
 	result->hw_ip_version_minor = adev->ip_blocks[i].version->minor;
+
+	if (adev->asic_type >= CHIP_VEGA10) {
+		switch (type) {
+		case AMD_IP_BLOCK_TYPE_GFX:
+			result->ip_discovery_version = adev->ip_versions[GC_HWIP][0];
+			break;
+		case AMD_IP_BLOCK_TYPE_SDMA:
+			result->ip_discovery_version = adev->ip_versions[SDMA0_HWIP][0];
+			break;
+		case AMD_IP_BLOCK_TYPE_UVD:
+		case AMD_IP_BLOCK_TYPE_VCN:
+		case AMD_IP_BLOCK_TYPE_JPEG:
+			result->ip_discovery_version = adev->ip_versions[UVD_HWIP][0];
+			break;
+		case AMD_IP_BLOCK_TYPE_VCE:
+			result->ip_discovery_version = adev->ip_versions[VCE_HWIP][0];
+			break;
+		default:
+			result->ip_discovery_version = 0;
+			break;
+		}
+	} else {
+		result->ip_discovery_version = 0;
+	}
 	result->capabilities_flags = 0;
 	result->available_rings = (1 << num_rings) - 1;
 	result->ib_start_alignment = ib_start_alignment;
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index 18d3246d636e..3a2674b4a2d9 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -1093,7 +1093,8 @@ struct drm_amdgpu_info_hw_ip {
 	__u32  ib_size_alignment;
 	/** Bitmask of available rings. Bit 0 means ring 0, etc. */
 	__u32  available_rings;
-	__u32  _pad;
+	/** version info: bits 23:16 major, 15:8 minor, 7:0 revision */
+	__u32  ip_discovery_version;
 };
 
 struct drm_amdgpu_info_num_handles {
-- 
2.35.3