[PATCH v6 24/45] drm/amd/display: Load DMUB microcode during early_init

Mario Limonciello
2023-01-05T03:46:12Z

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: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@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