drm/amdgpu: handle ras reset

#define ras_block_str(i) (ras_block_string[i])

#define AMDGPU_RAS_FLAG_INIT_BY_VBIOS		1

#define AMDGPU_RAS_FLAG_INIT_NEED_RESET		2

#define RAS_DEFAULT_FLAGS (AMDGPU_RAS_FLAG_INIT_BY_VBIOS)

static void amdgpu_ras_self_test(struct amdgpu_device *adev)

}

/* recovery end */

/* return 0 if ras will reset gpu and repost.*/

int amdgpu_ras_request_reset_on_boot(struct amdgpu_device *adev,

		unsigned int block)

{

	struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);

	if (!ras)

		return -EINVAL;

	ras->flags |= AMDGPU_RAS_FLAG_INIT_NEED_RESET;

	return 0;

}

/*

 * check hardware's ras ability which will be saved in hw_supported.

 * if hardware does not support ras, we can skip some ras initializtion and

	return -EINVAL;

}

/* do some init work after IP late init as dependence */

/* do some init work after IP late init as dependence.

 * TODO

 * gpu reset will re-enable ras, need fint out one way to run it again.

 * for now, if a gpu reset happened, unless IP enable its ras, the ras state

 * will be showed as disabled.

 */

void amdgpu_ras_post_init(struct amdgpu_device *adev)

{

	struct amdgpu_ras *con = amdgpu_ras_get_context(adev);

			}

		}

	}

	if (con->flags & AMDGPU_RAS_FLAG_INIT_NEED_RESET) {

		con->flags &= ~AMDGPU_RAS_FLAG_INIT_NEED_RESET;

		/* setup ras obj state as disabled.

		 * for init_by_vbios case.

		 * if we want to enable ras, just enable it in a normal way.

		 * If we want do disable it, need setup ras obj as enabled,

		 * then issue another TA disable cmd.

		 * See feature_enable_on_boot

		 */

		amdgpu_ras_disable_all_features(adev, 1);

		amdgpu_ras_reset_gpu(adev, 0);

	}

}

/* do some fini work before IP fini as dependence */

	return ras && (ras->supported & (1 << block));

}

int amdgpu_ras_request_reset_on_boot(struct amdgpu_device *adev,

		unsigned int block);

int amdgpu_ras_query_error_count(struct amdgpu_device *adev,

		bool is_ce);