drm/amdgpu: Add interface to load SRIOV cap FW

- Add interface to load SRIOV cap FW. If the FW does not
  exist, simply skip this FW loading routine.
  This FW will only be loaded under SRIOV. Other driver
  configuration will not be affected.
  By adding this interface, it will make us easier to
  prepare SRIOV Linux guest driver for different users.

- Update sysfs interface to read cap FW version.

- Refactor PSP FW loading routine under SRIOV to use a
  unified SWITCH statement instead of using IF statement

- Remove redundant amdgpu_sriov_vf() check in FW loading
  routine

Acked-by: Monk Liu <monk.liu@amd.com>
Acked-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Bokun Zhang <Bokun.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 289521aafb79..85f06396d184 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -400,6 +400,10 @@ static int amdgpu_firmware_info(struct drm_amdgpu_info_firmware *fw_info,
 		fw_info->ver = adev->psp.toc.fw_version;
 		fw_info->feature = adev->psp.toc.feature_version;
 		break;
+	case AMDGPU_INFO_FW_CAP:
+		fw_info->ver = adev->psp.cap_fw_version;
+		fw_info->feature = adev->psp.cap_feature_version;
+		break;
 	default:
 		return -EINVAL;
 	}
@@ -1617,6 +1621,16 @@ static int amdgpu_debugfs_firmware_info_show(struct seq_file *m, void *unused)
 	seq_printf(m, "TOC feature version: %u, firmware version: 0x%08x\n",
 		   fw_info.feature, fw_info.ver);
 
+	/* CAP */
+	if (adev->psp.cap_fw) {
+		query_fw.fw_type = AMDGPU_INFO_FW_CAP;
+		ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
+		if (ret)
+			return ret;
+		seq_printf(m, "CAP feature version: %u, firmware version: 0x%08x\n",
+				fw_info.feature, fw_info.ver);
+	}
+
 	seq_printf(m, "VBIOS version: %s\n", ctx->vbios_version);
 
 	return 0;