drm/amdgpu: Encapsulate all device reset info

To better organize struct amdgpu_device, keep all reset information
related fields together in a separated struct.
Signed-off-by: André Almeida <andrealmeid@igalia.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Reviewed-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -773,6 +773,26 @@ struct amdgpu_mqd {
 struct amdgpu_reset_domain;
 struct amdgpu_fru_info;
 
+#ifdef CONFIG_DEV_COREDUMP
+struct amdgpu_coredump_info {
+	struct amdgpu_device	*adev;
+	struct amdgpu_task_info reset_task_info;
+	struct timespec64	reset_time;
+	bool			reset_vram_lost;
+};
+#endif
+
+struct amdgpu_reset_info {
+	/* reset dump register */
+	u32 *reset_dump_reg_list;
+	u32 *reset_dump_reg_value;
+	int num_regs;
+
+#ifdef CONFIG_DEV_COREDUMP
+	struct amdgpu_coredump_info *coredump_info;
+#endif
+};
+
 /*
  * Non-zero (true) if the GPU has VRAM. Zero (false) otherwise.
  */
@@ -1081,10 +1101,7 @@ struct amdgpu_device {
 
 	struct mutex			benchmark_mutex;
 
-	/* reset dump register */
-	uint32_t                        *reset_dump_reg_list;
-	uint32_t			*reset_dump_reg_value;
-	int                             num_regs;
+	struct amdgpu_reset_info	reset_info;
 
 	bool                            scpm_enabled;
 	uint32_t                        scpm_status;
@@ -1111,15 +1128,6 @@ static inline uint32_t amdgpu_ip_version(const struct amdgpu_device *adev,
 	return adev->ip_versions[ip][inst] & ~0xFFU;
 }
 
-#ifdef CONFIG_DEV_COREDUMP
-struct amdgpu_coredump_info {
-	struct amdgpu_device		*adev;
-	struct amdgpu_task_info         reset_task_info;
-	struct timespec64               reset_time;
-	bool                            reset_vram_lost;
-};
-#endif
-
 static inline struct amdgpu_device *drm_to_adev(struct drm_device *ddev)
 {
 	return container_of(ddev, struct amdgpu_device, ddev);

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

@@ -2016,8 +2016,8 @@ static ssize_t amdgpu_reset_dump_register_list_read(struct file *f,
 	if (ret)
 		return ret;
 
-	for (i = 0; i < adev->num_regs; i++) {
-		sprintf(reg_offset, "0x%x\n", adev->reset_dump_reg_list[i]);
+	for (i = 0; i < adev->reset_info.num_regs; i++) {
+		sprintf(reg_offset, "0x%x\n", adev->reset_info.reset_dump_reg_list[i]);
 		up_read(&adev->reset_domain->sem);
 		if (copy_to_user(buf + len, reg_offset, strlen(reg_offset)))
 			return -EFAULT;
@@ -2074,9 +2074,9 @@ static ssize_t amdgpu_reset_dump_register_list_write(struct file *f,
 	if (ret)
 		goto error_free;
 
-	swap(adev->reset_dump_reg_list, tmp);
-	swap(adev->reset_dump_reg_value, new);
-	adev->num_regs = i;
+	swap(adev->reset_info.reset_dump_reg_list, tmp);
+	swap(adev->reset_info.reset_dump_reg_value, new);
+	adev->reset_info.num_regs = i;
 	up_write(&adev->reset_domain->sem);
 	ret = size;
 

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

@@ -5048,10 +5048,12 @@ static int amdgpu_reset_reg_dumps(struct amdgpu_device *adev)
 
 	lockdep_assert_held(&adev->reset_domain->sem);
 
-	for (i = 0; i < adev->num_regs; i++) {
-		adev->reset_dump_reg_value[i] = RREG32(adev->reset_dump_reg_list[i]);
-		trace_amdgpu_reset_reg_dumps(adev->reset_dump_reg_list[i],
-					     adev->reset_dump_reg_value[i]);
+	for (i = 0; i < adev->reset_info.num_regs; i++) {
+		adev->reset_info.reset_dump_reg_value[i] =
+			RREG32(adev->reset_info.reset_dump_reg_list[i]);
+
+		trace_amdgpu_reset_reg_dumps(adev->reset_info.reset_dump_reg_list[i],
+					     adev->reset_info.reset_dump_reg_value[i]);
 	}
 
 	return 0;
@@ -5089,13 +5091,13 @@ static ssize_t amdgpu_devcoredump_read(char *buffer, loff_t offset,
 
 	if (coredump->reset_vram_lost)
 		drm_printf(&p, "VRAM is lost due to GPU reset!\n");
-	if (coredump->adev->num_regs) {
+	if (coredump->adev->reset_info.num_regs) {
 		drm_printf(&p, "AMDGPU register dumps:\nOffset:     Value:\n");
 
-		for (i = 0; i < coredump->adev->num_regs; i++)
+		for (i = 0; i < coredump->adev->reset_info.num_regs; i++)
 			drm_printf(&p, "0x%08x: 0x%08x\n",
-				   coredump->adev->reset_dump_reg_list[i],
-				   coredump->adev->reset_dump_reg_value[i]);
+				   coredump->adev->reset_info.reset_dump_reg_list[i],
+				   coredump->adev->reset_info.reset_dump_reg_value[i]);
 	}
 
 	return count - iter.remain;