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/* SPDX-License-Identifier: GPL-2.0 */
/*
* GXP firmware loader.
*
* Copyright (C) 2020 Google LLC
*/
#ifndef __GXP_FIRMWARE_H__
#define __GXP_FIRMWARE_H__
#include <linux/bitops.h>
#include "gxp-internal.h"
static inline bool gxp_is_fw_running(struct gxp_dev *gxp, uint core)
{
return (gxp->firmware_running & BIT(core)) != 0;
}
/*
* Initializes the firmware loading/unloading subsystem. This includes
* initializing the LPM and obtaining the memory regions needed to load the FW.
* The function needs to be called once after a block power up event.
*/
int gxp_fw_init(struct gxp_dev *gxp);
/*
* Tears down the firmware loading/unloading subsystem in preparation for a
* block-level shutdown event. To be called once before a block shutdown.
*/
void gxp_fw_destroy(struct gxp_dev *gxp);
/*
* Loads the firmware for the specified core in system memory and powers up the
* core to start FW execution.
*/
int gxp_firmware_run(struct gxp_dev *gxp, uint core);
/*
* Shuts down the specified core.
*/
void gxp_firmware_stop(struct gxp_dev *gxp, uint core);
#endif /* __GXP_FIRMWARE_H__ */
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