2 * AMD Secure Processor driver
4 * Copyright (C) 2017 Advanced Micro Devices, Inc.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
18 #include <linux/device.h>
19 #include <linux/pci.h>
20 #include <linux/spinlock.h>
21 #include <linux/mutex.h>
22 #include <linux/list.h>
23 #include <linux/wait.h>
24 #include <linux/dmapool.h>
25 #include <linux/hw_random.h>
26 #include <linux/bitops.h>
27 #include <linux/interrupt.h>
28 #include <linux/irqreturn.h>
30 #define SP_MAX_NAME_LEN 32
32 #define CACHE_NONE 0x00
33 #define CACHE_WB_NO_ALLOC 0xb7
35 /* Structure to hold CCP device data */
38 const unsigned int version;
39 const unsigned int dma_chan_attr;
40 void (*setup)(struct ccp_device *);
41 const struct ccp_actions *perform;
42 const unsigned int offset;
43 const unsigned int rsamax;
45 /* Structure to hold SP device data */
47 const unsigned int bar;
49 const struct ccp_vdata *ccp_vdata;
54 struct list_head entry;
58 struct sp_dev_vdata *dev_vdata;
60 char name[SP_MAX_NAME_LEN];
62 /* Bus specific device information */
65 /* I/O area used for device communication. */
68 /* DMA caching attribute support */
75 irq_handler_t ccp_irq_handler;
79 irq_handler_t psp_irq_handler;
86 int sp_pci_init(void);
87 void sp_pci_exit(void);
89 int sp_platform_init(void);
90 void sp_platform_exit(void);
92 struct sp_device *sp_alloc_struct(struct device *dev);
94 int sp_init(struct sp_device *sp);
95 void sp_destroy(struct sp_device *sp);
96 struct sp_device *sp_get_master(void);
98 int sp_suspend(struct sp_device *sp, pm_message_t state);
99 int sp_resume(struct sp_device *sp);
100 int sp_request_ccp_irq(struct sp_device *sp, irq_handler_t handler,
101 const char *name, void *data);
102 void sp_free_ccp_irq(struct sp_device *sp, void *data);
103 int sp_request_psp_irq(struct sp_device *sp, irq_handler_t handler,
104 const char *name, void *data);
105 void sp_free_psp_irq(struct sp_device *sp, void *data);
107 #ifdef CONFIG_CRYPTO_DEV_SP_CCP
109 int ccp_dev_init(struct sp_device *sp);
110 void ccp_dev_destroy(struct sp_device *sp);
112 int ccp_dev_suspend(struct sp_device *sp, pm_message_t state);
113 int ccp_dev_resume(struct sp_device *sp);
115 #else /* !CONFIG_CRYPTO_DEV_SP_CCP */
117 static inline int ccp_dev_init(struct sp_device *sp)
121 static inline void ccp_dev_destroy(struct sp_device *sp) { }
123 static inline int ccp_dev_suspend(struct sp_device *sp, pm_message_t state)
127 static inline int ccp_dev_resume(struct sp_device *sp)
131 #endif /* CONFIG_CRYPTO_DEV_SP_CCP */