linux/drivers/crypto/ccp/sp-dev.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * AMD Secure Processor driver
 *
 * Copyright (C) 2017-2019 Advanced Micro Devices, Inc.
 *
 * Author: Tom Lendacky <[email protected]>
 * Author: Gary R Hook <[email protected]>
 * Author: Brijesh Singh <[email protected]>
 */

#ifndef __SP_DEV_H__
#define __SP_DEV_H__

#include <linux/device.h>
#include <linux/spinlock.h>
#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/wait.h>
#include <linux/dmapool.h>
#include <linux/hw_random.h>
#include <linux/bitops.h>
#include <linux/interrupt.h>
#include <linux/irqreturn.h>

#define SP_MAX_NAME_LEN …

#define CACHE_NONE …
#define CACHE_WB_NO_ALLOC …

#define PLATFORM_FEATURE_DBC …
#define PLATFORM_FEATURE_HSTI …

#define PSP_FEATURE(psp, feat) …

/* Structure to hold CCP device data */
struct ccp_device;
struct ccp_vdata { … };

struct sev_vdata { … };

struct tee_vdata { … };

struct platform_access_vdata { … };

struct psp_vdata { … };

/* Structure to hold SP device data */
struct sp_dev_vdata { … };

struct sp_device { … };

int sp_pci_init(void);
void sp_pci_exit(void);

int sp_platform_init(void);
void sp_platform_exit(void);

struct sp_device *sp_alloc_struct(struct device *dev);

int sp_init(struct sp_device *sp);
void sp_destroy(struct sp_device *sp);

int sp_suspend(struct sp_device *sp);
int sp_resume(struct sp_device *sp);
int sp_request_ccp_irq(struct sp_device *sp, irq_handler_t handler,
		       const char *name, void *data);
void sp_free_ccp_irq(struct sp_device *sp, void *data);
int sp_request_psp_irq(struct sp_device *sp, irq_handler_t handler,
		       const char *name, void *data);
void sp_free_psp_irq(struct sp_device *sp, void *data);
struct sp_device *sp_get_psp_master_device(void);

#ifdef CONFIG_CRYPTO_DEV_SP_CCP

int ccp_dev_init(struct sp_device *sp);
void ccp_dev_destroy(struct sp_device *sp);

void ccp_dev_suspend(struct sp_device *sp);
void ccp_dev_resume(struct sp_device *sp);

#else	/* !CONFIG_CRYPTO_DEV_SP_CCP */

static inline int ccp_dev_init(struct sp_device *sp)
{
	return 0;
}
static inline void ccp_dev_destroy(struct sp_device *sp) { }
static inline void ccp_dev_suspend(struct sp_device *sp) { }
static inline void ccp_dev_resume(struct sp_device *sp) { }
#endif	/* CONFIG_CRYPTO_DEV_SP_CCP */

#ifdef CONFIG_CRYPTO_DEV_SP_PSP

int psp_dev_init(struct sp_device *sp);
void psp_pci_init(void);
void psp_dev_destroy(struct sp_device *sp);
void psp_pci_exit(void);

#else /* !CONFIG_CRYPTO_DEV_SP_PSP */

static inline int psp_dev_init(struct sp_device *sp) { return 0; }
static inline void psp_pci_init(void) { }
static inline void psp_dev_destroy(struct sp_device *sp) { }
static inline void psp_pci_exit(void) { }

#endif /* CONFIG_CRYPTO_DEV_SP_PSP */

#endif