Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Received-SPF: Pass (protection.outlook.com: domain of amd.com designates
 165.204.84.17 as permitted sender) receiver=protection.outlook.com;
 client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C
From:   Mario Limonciello <mario.limonciello@amd.com>
To:     Alex Deucher <alexander.deucher@amd.com>,
        <linux-kernel@vger.kernel.org>
CC:     Javier Martinez Canillas <javierm@redhat.com>,
        Carlos Soriano Sanchez <csoriano@redhat.com>,
        <amd-gfx@lists.freedesktop.org>, <dri-devel@lists.freedesktop.org>,
        David Airlie <airlied@gmail.com>,
        "Daniel Vetter" <daniel@ffwll.ch>, <christian.koenig@amd.com>,
        Lazar Lijo <Lijo.Lazar@amd.com>,
        Mario Limonciello <mario.limonciello@amd.com>,
        "Harry Wentland" <harry.wentland@amd.com>,
        Leo Li <sunpeng.li@amd.com>,
        "Rodrigo Siqueira" <Rodrigo.Siqueira@amd.com>,
        "Pan, Xinhui" <Xinhui.Pan@amd.com>
Subject: [PATCH v4 24/27] drm/amd/display: Load DMUB microcode during early_init
Date:   Tue, 3 Jan 2023 16:18:43 -0600
Message-ID: <20230103221852.22813-25-mario.limonciello@amd.com>
In-Reply-To: <20230103221852.22813-1-mario.limonciello@amd.com>
References: <20230103221852.22813-1-mario.limonciello@amd.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Jan 2023 22:19:58.7146
 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: 95e70b35-dd60-465f-1486-08daedd8a67a
X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d
X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com]
X-MS-Exchange-CrossTenant-AuthSource: DS1PEPF0000E655.namprd02.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Anonymous
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR12MB5453
X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,
        DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE,
        RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS autolearn=ham
        autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

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.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
v3->v4:
 * New patch
---
 .../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..eeccc8af0320 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_load(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