drm/amdgpu: Add sdma ras function on sdma v6_0_3

Add sdma ras function on sdma v6_0_3.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -305,3 +305,38 @@ void amdgpu_sdma_unset_buffer_funcs_helper(struct amdgpu_device *adev)
 		}
 	}
 }
+
+int amdgpu_sdma_ras_sw_init(struct amdgpu_device *adev)
+{
+	int err = 0;
+	struct amdgpu_sdma_ras *ras = NULL;
+
+	/* adev->sdma.ras is NULL, which means sdma does not
+	 * support ras function, then do nothing here.
+	 */
+	if (!adev->sdma.ras)
+		return 0;
+
+	ras = adev->sdma.ras;
+
+	err = amdgpu_ras_register_ras_block(adev, &ras->ras_block);
+	if (err) {
+		dev_err(adev->dev, "Failed to register sdma ras block!\n");
+		return err;
+	}
+
+	strcpy(ras->ras_block.ras_comm.name, "sdma");
+	ras->ras_block.ras_comm.block = AMDGPU_RAS_BLOCK__SDMA;
+	ras->ras_block.ras_comm.type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
+	adev->sdma.ras_if = &ras->ras_block.ras_comm;
+
+	/* If not define special ras_late_init function, use default ras_late_init */
+	if (!ras->ras_block.ras_late_init)
+		ras->ras_block.ras_late_init = amdgpu_sdma_ras_late_init;
+
+	/* If not defined special ras_cb function, use default ras_cb */
+	if (!ras->ras_block.ras_cb)
+		ras->ras_block.ras_cb = amdgpu_sdma_process_ras_data_cb;
+
+	return 0;
+}

drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h

@@ -129,5 +129,6 @@ int amdgpu_sdma_init_microcode(struct amdgpu_device *adev, u32 instance,
 void amdgpu_sdma_destroy_inst_ctx(struct amdgpu_device *adev,
         bool duplicate);
 void amdgpu_sdma_unset_buffer_funcs_helper(struct amdgpu_device *adev);
+int amdgpu_sdma_ras_sw_init(struct amdgpu_device *adev);
 
 #endif

drivers/gpu/drm/amd/amdgpu/sdma_v6_0.c

@@ -1211,6 +1211,24 @@ static void sdma_v6_0_ring_emit_reg_write_reg_wait(struct amdgpu_ring *ring,
 	amdgpu_ring_emit_reg_wait(ring, reg1, mask, mask);
 }
 
+static struct amdgpu_sdma_ras sdma_v6_0_3_ras = {
+	.ras_block = {
+		.ras_late_init = amdgpu_ras_block_late_init,
+	},
+};
+
+static void sdma_v6_0_set_ras_funcs(struct amdgpu_device *adev)
+{
+	switch (adev->ip_versions[SDMA0_HWIP][0]) {
+	case IP_VERSION(6, 0, 3):
+		adev->sdma.ras = &sdma_v6_0_3_ras;
+		break;
+	default:
+		break;
+	}
+
+}
+
 static int sdma_v6_0_early_init(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@@ -1220,6 +1238,7 @@ static int sdma_v6_0_early_init(void *handle)
 	sdma_v6_0_set_vm_pte_funcs(adev);
 	sdma_v6_0_set_irq_funcs(adev);
 	sdma_v6_0_set_mqd_funcs(adev);
+	sdma_v6_0_set_ras_funcs(adev);
 
 	return 0;
 }
@@ -1264,6 +1283,11 @@ static int sdma_v6_0_sw_init(void *handle)
 			return r;
 	}
 
+	if (amdgpu_sdma_ras_sw_init(adev)) {
+		dev_err(adev->dev, "Failed to initialize sdma ras block!\n");
+		return -EINVAL;
+	}
+
 	return r;
 }