linux/drivers/crypto/ccp/platform-access.h
Mario Limonciello d5812571f5 crypto: ccp - Add support for ringing a platform doorbell
Some platforms support using a doorbell to communicate. Export
this feature for other drivers to utilize as well.

Link: https://lore.kernel.org/linux-i2c/20220916131854.687371-3-jsd@semihalf.com/
Suggested-by: Jan Dabros <jsd@semihalf.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-03-17 11:16:43 +08:00

36 lines
812 B
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* AMD Platform Security Processor (PSP) Platform Access interface
*
* Copyright (C) 2023 Advanced Micro Devices, Inc.
*
* Author: Mario Limonciello <mario.limonciello@amd.com>
*/
#ifndef __PSP_PLATFORM_ACCESS_H__
#define __PSP_PLATFORM_ACCESS_H__
#include <linux/device.h>
#include <linux/miscdevice.h>
#include <linux/mutex.h>
#include <linux/psp-platform-access.h>
#include "psp-dev.h"
struct psp_platform_access_device {
struct device *dev;
struct psp_device *psp;
struct platform_access_vdata *vdata;
struct mutex mailbox_mutex;
struct mutex doorbell_mutex;
void *platform_access_data;
};
void platform_access_dev_destroy(struct psp_device *psp);
int platform_access_dev_init(struct psp_device *psp);
#endif /* __PSP_PLATFORM_ACCESS_H__ */