drm/amdgpu: support polaris10/11/12 new cp firmwares

Newer versions of the CP firmware require changes in how the driver
initializes the hw block.
Change the firmware name for new firmware to maintain compatibility with
older kernels.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c

@@ -918,8 +918,17 @@ static int gfx_v8_0_init_microcode(struct amdgpu_device *adev)
 		BUG();
 	}
 
-	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_pfp.bin", chip_name);
-	err = request_firmware(&adev->gfx.pfp_fw, fw_name, adev->dev);
+	if (adev->asic_type >= CHIP_POLARIS10 && adev->asic_type <= CHIP_POLARIS12) {
+		snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_pfp_2.bin", chip_name);
+		err = request_firmware(&adev->gfx.pfp_fw, fw_name, adev->dev);
+		if (err == -ENOENT) {
+			snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_pfp.bin", chip_name);
+			err = request_firmware(&adev->gfx.pfp_fw, fw_name, adev->dev);
+		}
+	} else {
+		snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_pfp.bin", chip_name);
+		err = request_firmware(&adev->gfx.pfp_fw, fw_name, adev->dev);
+	}
 	if (err)
 		goto out;
 	err = amdgpu_ucode_validate(adev->gfx.pfp_fw);
@@ -929,8 +938,17 @@ static int gfx_v8_0_init_microcode(struct amdgpu_device *adev)
 	adev->gfx.pfp_fw_version = le32_to_cpu(cp_hdr->header.ucode_version);
 	adev->gfx.pfp_feature_version = le32_to_cpu(cp_hdr->ucode_feature_version);
 
-	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_me.bin", chip_name);
-	err = request_firmware(&adev->gfx.me_fw, fw_name, adev->dev);
+	if (adev->asic_type >= CHIP_POLARIS10 && adev->asic_type <= CHIP_POLARIS12) {
+		snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_me_2.bin", chip_name);
+		err = request_firmware(&adev->gfx.me_fw, fw_name, adev->dev);
+		if (err == -ENOENT) {
+			snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_me.bin", chip_name);
+			err = request_firmware(&adev->gfx.me_fw, fw_name, adev->dev);
+		}
+	} else {
+		snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_me.bin", chip_name);
+		err = request_firmware(&adev->gfx.me_fw, fw_name, adev->dev);
+	}
 	if (err)
 		goto out;
 	err = amdgpu_ucode_validate(adev->gfx.me_fw);
@@ -941,8 +959,17 @@ static int gfx_v8_0_init_microcode(struct amdgpu_device *adev)
 
 	adev->gfx.me_feature_version = le32_to_cpu(cp_hdr->ucode_feature_version);
 
-	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_ce.bin", chip_name);
-	err = request_firmware(&adev->gfx.ce_fw, fw_name, adev->dev);
+	if (adev->asic_type >= CHIP_POLARIS10 && adev->asic_type <= CHIP_POLARIS12) {
+		snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_ce_2.bin", chip_name);
+		err = request_firmware(&adev->gfx.ce_fw, fw_name, adev->dev);
+		if (err == -ENOENT) {
+			snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_ce.bin", chip_name);
+			err = request_firmware(&adev->gfx.ce_fw, fw_name, adev->dev);
+		}
+	} else {
+		snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_ce.bin", chip_name);
+		err = request_firmware(&adev->gfx.ce_fw, fw_name, adev->dev);
+	}
 	if (err)
 		goto out;
 	err = amdgpu_ucode_validate(adev->gfx.ce_fw);
@@ -1012,8 +1039,17 @@ static int gfx_v8_0_init_microcode(struct amdgpu_device *adev)
 	for (i = 0 ; i < (rlc_hdr->reg_list_size_bytes >> 2); i++)
 		adev->gfx.rlc.register_restore[i] = le32_to_cpu(tmp[i]);
 
-	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mec.bin", chip_name);
-	err = request_firmware(&adev->gfx.mec_fw, fw_name, adev->dev);
+	if (adev->asic_type >= CHIP_POLARIS10 && adev->asic_type <= CHIP_POLARIS12) {
+		snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mec_2.bin", chip_name);
+		err = request_firmware(&adev->gfx.mec_fw, fw_name, adev->dev);
+		if (err == -ENOENT) {
+			snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mec.bin", chip_name);
+			err = request_firmware(&adev->gfx.mec_fw, fw_name, adev->dev);
+		}
+	} else {
+		snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mec.bin", chip_name);
+		err = request_firmware(&adev->gfx.mec_fw, fw_name, adev->dev);
+	}
 	if (err)
 		goto out;
 	err = amdgpu_ucode_validate(adev->gfx.mec_fw);
@@ -1025,8 +1061,17 @@ static int gfx_v8_0_init_microcode(struct amdgpu_device *adev)
 
 	if ((adev->asic_type != CHIP_STONEY) &&
 	    (adev->asic_type != CHIP_TOPAZ)) {
-		snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mec2.bin", chip_name);
-		err = request_firmware(&adev->gfx.mec2_fw, fw_name, adev->dev);
+		if (adev->asic_type >= CHIP_POLARIS10 && adev->asic_type <= CHIP_POLARIS12) {
+			snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mec2_2.bin", chip_name);
+			err = request_firmware(&adev->gfx.mec2_fw, fw_name, adev->dev);
+			if (err == -ENOENT) {
+				snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mec2.bin", chip_name);
+				err = request_firmware(&adev->gfx.mec2_fw, fw_name, adev->dev);
+			}
+		} else {
+			snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mec2.bin", chip_name);
+			err = request_firmware(&adev->gfx.mec2_fw, fw_name, adev->dev);
+		}
 		if (!err) {
 			err = amdgpu_ucode_validate(adev->gfx.mec2_fw);
 			if (err)