drm/amdgpu/gfx: switch to amdgpu_gfx_ras_late_init helper function

amdgpu_gfx_ras_late_init is used to init gfx specfic
ras debugfs/sysfs node and gfx specific interrupt handler.
It can be shared among gfx generations
Signed-off-by: Hawking Zhang <Hawking.Zhang@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_gfx.c

@@ -26,6 +26,7 @@
 #include "amdgpu.h"
 #include "amdgpu_gfx.h"
 #include "amdgpu_rlc.h"
+#include "amdgpu_ras.h"
 
 /* delay 0.1 second to enable gfx off feature */
 #define GFX_OFF_DELAY_ENABLE         msecs_to_jiffies(100)
@@ -569,3 +570,51 @@ void amdgpu_gfx_off_ctrl(struct amdgpu_device *adev, bool enable)
 
 	mutex_unlock(&adev->gfx.gfx_off_mutex);
 }
+
+int amdgpu_gfx_ras_late_init(struct amdgpu_device *adev,
+			     void *ras_ih_info)
+{
+	int r;
+	struct ras_ih_if *ih_info = (struct ras_ih_if *)ras_ih_info;
+	struct ras_fs_if fs_info = {
+		.sysfs_name = "gfx_err_count",
+		.debugfs_name = "gfx_err_inject",
+	};
+
+	if (!ih_info)
+		return -EINVAL;
+
+	if (!adev->gfx.ras_if) {
+		adev->gfx.ras_if = kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
+		if (!adev->gfx.ras_if)
+			return -ENOMEM;
+		adev->gfx.ras_if->block = AMDGPU_RAS_BLOCK__GFX;
+		adev->gfx.ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
+		adev->gfx.ras_if->sub_block_index = 0;
+		strcpy(adev->gfx.ras_if->name, "gfx");
+	}
+	fs_info.head = ih_info->head = *adev->gfx.ras_if;
+
+	r = amdgpu_ras_late_init(adev, adev->gfx.ras_if,
+				 &fs_info, ih_info);
+	if (r)
+		goto free;
+
+	if (amdgpu_ras_is_supported(adev, adev->gfx.ras_if->block)) {
+		r = amdgpu_irq_get(adev, &adev->gfx.cp_ecc_error_irq, 0);
+		if (r)
+			goto late_fini;
+	} else {
+		/* free gfx ras_if if ras is not supported */
+		r = 0;
+		goto free;
+	}
+
+	return 0;
+late_fini:
+	amdgpu_ras_late_fini(adev, adev->gfx.ras_if, ih_info);
+free:
+	kfree(adev->gfx.ras_if);
+	adev->gfx.ras_if = NULL;
+	return r;
+}

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

@@ -383,5 +383,6 @@ void amdgpu_gfx_bit_to_me_queue(struct amdgpu_device *adev, int bit,
 bool amdgpu_gfx_is_me_queue_enabled(struct amdgpu_device *adev, int me,
 				    int pipe, int queue);
 void amdgpu_gfx_off_ctrl(struct amdgpu_device *adev, bool enable);
-
+int amdgpu_gfx_ras_late_init(struct amdgpu_device *adev,
+			     void *ras_ih_info);
 #endif

drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c

@@ -4409,22 +4409,11 @@ static int gfx_v9_0_ecc_late_init(void *handle)
 	struct ras_ih_if ih_info = {
 		.cb = gfx_v9_0_process_ras_data_cb,
 	};
-	struct ras_fs_if fs_info = {
-		.sysfs_name = "gfx_err_count",
-		.debugfs_name = "gfx_err_inject",
-	};
 	int r;
 
-	if (!adev->gfx.ras_if) {
-		adev->gfx.ras_if = kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
-		if (!adev->gfx.ras_if)
-			return -ENOMEM;
-		adev->gfx.ras_if->block = AMDGPU_RAS_BLOCK__GFX;
-		adev->gfx.ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
-		adev->gfx.ras_if->sub_block_index = 0;
-		strcpy(adev->gfx.ras_if->name, "gfx");
-	}
-	fs_info.head = ih_info.head = *adev->gfx.ras_if;
+	r = amdgpu_gfx_ras_late_init(adev, &ih_info);
+	if (r)
+		return r;
 
 	r = gfx_v9_0_do_edc_gds_workarounds(adev);
 	if (r)
@@ -4435,27 +4424,7 @@ static int gfx_v9_0_ecc_late_init(void *handle)
 	if (r)
 		return r;
 
-	r = amdgpu_ras_late_init(adev, adev->gfx.ras_if,
-				 &fs_info, &ih_info);
-	if (r)
-		goto free;
-
-	if (amdgpu_ras_is_supported(adev, adev->gfx.ras_if->block)) {
-		r = amdgpu_irq_get(adev, &adev->gfx.cp_ecc_error_irq, 0);
-		if (r)
-			goto late_fini;
-	} else {
-		r = 0;
-		goto free;
-	}
-
 	return 0;
-late_fini:
-	amdgpu_ras_late_fini(adev, adev->gfx.ras_if, &ih_info);
-free:
-	kfree(adev->gfx.ras_if);
-	adev->gfx.ras_if = NULL;
-	return r;
 }
 
 static int gfx_v9_0_late_init(void *handle)