From: Alex Deucher <alexander.deucher@amd.com>
Date: Fri, 16 Mar 2018 11:04:53 -0500
Subject: drm/amdgpu: add VCN to firmware query interface
Git-commit: 3ac952b10dec55e50312340ca4cf8f631944ae17
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Need to be able to query the VCN firmware version from
userspace to determine supported features, etc.

Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c |   12 ++++++++++++
 include/uapi/drm/amdgpu_drm.h           |    2 ++
 2 files changed, 14 insertions(+)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -190,6 +190,10 @@ static int amdgpu_firmware_info(struct d
 		fw_info->ver = adev->uvd.fw_version;
 		fw_info->feature = 0;
 		break;
+	case AMDGPU_INFO_FW_VCN:
+		fw_info->ver = adev->vcn.fw_version;
+		fw_info->feature = 0;
+		break;
 	case AMDGPU_INFO_FW_GMC:
 		fw_info->ver = adev->gmc.fw_version;
 		fw_info->feature = 0;
@@ -1198,6 +1202,14 @@ static int amdgpu_debugfs_firmware_info(
 			   i, fw_info.feature, fw_info.ver);
 	}
 
+	/* VCN */
+	query_fw.fw_type = AMDGPU_INFO_FW_VCN;
+	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
+	if (ret)
+		return ret;
+	seq_printf(m, "VCN feature version: %u, firmware version: 0x%08x\n",
+		   fw_info.feature, fw_info.ver);
+
 	return 0;
 }
 
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -618,6 +618,8 @@ struct drm_amdgpu_cs_chunk_data {
 	#define AMDGPU_INFO_FW_SOS		0x0c
 	/* Subquery id: Query PSP ASD firmware version */
 	#define AMDGPU_INFO_FW_ASD		0x0d
+	/* Subquery id: Query VCN firmware version */
+	#define AMDGPU_INFO_FW_VCN		0x0e
 /* number of bytes moved for TTM migration */
 #define AMDGPU_INFO_NUM_BYTES_MOVED		0x0f
 /* the used VRAM size */