Merge "msm: cvp: Enhance CVP release persist buffer process for DSP sessions"

// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.

 * Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.

 */

#include <linux/dma-direction.h>

static void msm_cvp_cleanup_instance(struct msm_cvp_inst *inst)

{

	bool empty;

	int max_retries;

	if (!inst) {

		dprintk(CVP_ERR, "%s: invalid params\n", __func__);

		return;

	}

	max_retries =  inst->core->resources.msm_cvp_hw_rsp_timeout >> 1;

wait:

	mutex_lock(&inst->cvpdspbufs.lock);

	empty = list_empty(&inst->cvpdspbufs.list);

	if (!empty && max_retries > 0) {

		mutex_unlock(&inst->cvpdspbufs.lock);

		usleep_range(1000, 2000);

		max_retries--;

		goto wait;

	}

	mutex_unlock(&inst->cvpdspbufs.lock);

	dprintk(CVP_DBG, "empty %d, retry %d\n", (int)empty,

	(inst->core->resources.msm_cvp_hw_rsp_timeout >> 1) - max_retries);

	if (!empty) {

		dprintk(CVP_WARN,

			"Failed to process frames before session close\n");

	}

	if (cvp_comm_release_persist_buffers(inst))

		dprintk(CVP_ERR,

			"Failed to release persist buffers\n");

	dprintk(CVP_DBG, "Done cvp cleanup instance\n");

}

int msm_cvp_destroy(struct msm_cvp_inst *inst)