If DMUB is required for an ASIC, ensure that the microcode is available
and validates during early_init.

Any failures will cause the driver to fail to probe before the firmware
framebuffer has been removed.

Reviewed-by: Harry Wentland <harry.wentl...@amd.com>
Signed-off-by: Mario Limonciello <mario.limoncie...@amd.com>
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 89 ++++++++++++-------
 1 file changed, 58 insertions(+), 31 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c 
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 4829b5431e4c..c8c5d37c8b3a 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1945,7 +1945,6 @@ static int dm_dmub_sw_init(struct amdgpu_device *adev)
        struct dmub_srv_fb_info *fb_info;
        struct dmub_srv *dmub_srv;
        const struct dmcub_firmware_header_v1_0 *hdr;
-       const char *fw_name_dmub;
        enum dmub_asic dmub_asic;
        enum dmub_status status;
        int r;
@@ -1953,73 +1952,46 @@ static int dm_dmub_sw_init(struct amdgpu_device *adev)
        switch (adev->ip_versions[DCE_HWIP][0]) {
        case IP_VERSION(2, 1, 0):
                dmub_asic = DMUB_ASIC_DCN21;
-               fw_name_dmub = FIRMWARE_RENOIR_DMUB;
-               if (ASICREV_IS_GREEN_SARDINE(adev->external_rev_id))
-                       fw_name_dmub = FIRMWARE_GREEN_SARDINE_DMUB;
                break;
        case IP_VERSION(3, 0, 0):
-               if (adev->ip_versions[GC_HWIP][0] == IP_VERSION(10, 3, 0)) {
+               if (adev->ip_versions[GC_HWIP][0] == IP_VERSION(10, 3, 0))
                        dmub_asic = DMUB_ASIC_DCN30;
-                       fw_name_dmub = FIRMWARE_SIENNA_CICHLID_DMUB;
-               } else {
+               else
                        dmub_asic = DMUB_ASIC_DCN30;
-                       fw_name_dmub = FIRMWARE_NAVY_FLOUNDER_DMUB;
-               }
                break;
        case IP_VERSION(3, 0, 1):
                dmub_asic = DMUB_ASIC_DCN301;
-               fw_name_dmub = FIRMWARE_VANGOGH_DMUB;
                break;
        case IP_VERSION(3, 0, 2):
                dmub_asic = DMUB_ASIC_DCN302;
-               fw_name_dmub = FIRMWARE_DIMGREY_CAVEFISH_DMUB;
                break;
        case IP_VERSION(3, 0, 3):
                dmub_asic = DMUB_ASIC_DCN303;
-               fw_name_dmub = FIRMWARE_BEIGE_GOBY_DMUB;
                break;
        case IP_VERSION(3, 1, 2):
        case IP_VERSION(3, 1, 3):
                dmub_asic = (adev->external_rev_id == YELLOW_CARP_B0) ? 
DMUB_ASIC_DCN31B : DMUB_ASIC_DCN31;
-               fw_name_dmub = FIRMWARE_YELLOW_CARP_DMUB;
                break;
        case IP_VERSION(3, 1, 4):
                dmub_asic = DMUB_ASIC_DCN314;
-               fw_name_dmub = FIRMWARE_DCN_314_DMUB;
                break;
        case IP_VERSION(3, 1, 5):
                dmub_asic = DMUB_ASIC_DCN315;
-               fw_name_dmub = FIRMWARE_DCN_315_DMUB;
                break;
        case IP_VERSION(3, 1, 6):
                dmub_asic = DMUB_ASIC_DCN316;
-               fw_name_dmub = FIRMWARE_DCN316_DMUB;
                break;
        case IP_VERSION(3, 2, 0):
                dmub_asic = DMUB_ASIC_DCN32;
-               fw_name_dmub = FIRMWARE_DCN_V3_2_0_DMCUB;
                break;
        case IP_VERSION(3, 2, 1):
                dmub_asic = DMUB_ASIC_DCN321;
-               fw_name_dmub = FIRMWARE_DCN_V3_2_1_DMCUB;
                break;
        default:
                /* ASIC doesn't support DMUB. */
                return 0;
        }
 
-       r = request_firmware_direct(&adev->dm.dmub_fw, fw_name_dmub, adev->dev);
-       if (r) {
-               DRM_ERROR("DMUB firmware loading failed: %d\n", r);
-               return 0;
-       }
-
-       r = amdgpu_ucode_validate(adev->dm.dmub_fw);
-       if (r) {
-               DRM_ERROR("Couldn't validate DMUB firmware: %d\n", r);
-               return 0;
-       }
-
        hdr = (const struct dmcub_firmware_header_v1_0 *)adev->dm.dmub_fw->data;
        adev->dm.dmcub_fw_version = le32_to_cpu(hdr->header.ucode_version);
 
@@ -4513,6 +4485,61 @@ DEVICE_ATTR_WO(s3_debug);
 
 #endif
 
+static int dm_init_microcode(struct amdgpu_device *adev)
+{
+       char *fw_name_dmub;
+       int r;
+
+       switch (adev->ip_versions[DCE_HWIP][0]) {
+       case IP_VERSION(2, 1, 0):
+               fw_name_dmub = FIRMWARE_RENOIR_DMUB;
+               if (ASICREV_IS_GREEN_SARDINE(adev->external_rev_id))
+                       fw_name_dmub = FIRMWARE_GREEN_SARDINE_DMUB;
+               break;
+       case IP_VERSION(3, 0, 0):
+               if (adev->ip_versions[GC_HWIP][0] == IP_VERSION(10, 3, 0))
+                       fw_name_dmub = FIRMWARE_SIENNA_CICHLID_DMUB;
+               else
+                       fw_name_dmub = FIRMWARE_NAVY_FLOUNDER_DMUB;
+               break;
+       case IP_VERSION(3, 0, 1):
+               fw_name_dmub = FIRMWARE_VANGOGH_DMUB;
+               break;
+       case IP_VERSION(3, 0, 2):
+               fw_name_dmub = FIRMWARE_DIMGREY_CAVEFISH_DMUB;
+               break;
+       case IP_VERSION(3, 0, 3):
+               fw_name_dmub = FIRMWARE_BEIGE_GOBY_DMUB;
+               break;
+       case IP_VERSION(3, 1, 2):
+       case IP_VERSION(3, 1, 3):
+               fw_name_dmub = FIRMWARE_YELLOW_CARP_DMUB;
+               break;
+       case IP_VERSION(3, 1, 4):
+               fw_name_dmub = FIRMWARE_DCN_314_DMUB;
+               break;
+       case IP_VERSION(3, 1, 5):
+               fw_name_dmub = FIRMWARE_DCN_315_DMUB;
+               break;
+       case IP_VERSION(3, 1, 6):
+               fw_name_dmub = FIRMWARE_DCN316_DMUB;
+               break;
+       case IP_VERSION(3, 2, 0):
+               fw_name_dmub = FIRMWARE_DCN_V3_2_0_DMCUB;
+               break;
+       case IP_VERSION(3, 2, 1):
+               fw_name_dmub = FIRMWARE_DCN_V3_2_1_DMCUB;
+               break;
+       default:
+               /* ASIC doesn't support DMUB. */
+               return 0;
+       }
+       r = amdgpu_ucode_request(adev, &adev->dm.dmub_fw, fw_name_dmub);
+       if (r)
+               DRM_ERROR("DMUB firmware loading failed: %d\n", r);
+       return r;
+}
+
 static int dm_early_init(void *handle)
 {
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@@ -4645,7 +4672,7 @@ static int dm_early_init(void *handle)
 #endif
        adev->dc_enabled = true;
 
-       return 0;
+       return dm_init_microcode(adev);
 }
 
 static bool modereset_required(struct drm_crtc_state *crtc_state)
-- 
2.34.1

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