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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
8e8ec596 KP |
2 | /* |
3 | * CAAM/SEC 4.x driver backend | |
4 | * Private/internal definitions between modules | |
5 | * | |
6 | * Copyright 2008-2011 Freescale Semiconductor, Inc. | |
7 | * | |
8 | */ | |
9 | ||
10 | #ifndef INTERN_H | |
11 | #define INTERN_H | |
12 | ||
8e8ec596 KP |
13 | /* Currently comes from Kconfig param as a ^2 (driver-required) */ |
14 | #define JOBR_DEPTH (1 << CONFIG_CRYPTO_DEV_FSL_CAAM_RINGSIZE) | |
15 | ||
16 | /* Kconfig params for interrupt coalescing if selected (else zero) */ | |
17 | #ifdef CONFIG_CRYPTO_DEV_FSL_CAAM_INTC | |
18 | #define JOBR_INTC JRCFG_ICEN | |
19 | #define JOBR_INTC_TIME_THLD CONFIG_CRYPTO_DEV_FSL_CAAM_INTC_TIME_THLD | |
20 | #define JOBR_INTC_COUNT_THLD CONFIG_CRYPTO_DEV_FSL_CAAM_INTC_COUNT_THLD | |
21 | #else | |
22 | #define JOBR_INTC 0 | |
23 | #define JOBR_INTC_TIME_THLD 0 | |
24 | #define JOBR_INTC_COUNT_THLD 0 | |
25 | #endif | |
26 | ||
27 | /* | |
28 | * Storage for tracking each in-process entry moving across a ring | |
29 | * Each entry on an output ring needs one of these | |
30 | */ | |
31 | struct caam_jrentry_info { | |
32 | void (*callbk)(struct device *dev, u32 *desc, u32 status, void *arg); | |
33 | void *cbkarg; /* Argument per ring entry */ | |
34 | u32 *desc_addr_virt; /* Stored virt addr for postprocessing */ | |
35 | dma_addr_t desc_addr_dma; /* Stored bus addr for done matching */ | |
36 | u32 desc_size; /* Stored size for postprocessing, header derived */ | |
37 | }; | |
38 | ||
39 | /* Private sub-storage for a single JobR */ | |
40 | struct caam_drv_private_jr { | |
313ea293 RG |
41 | struct list_head list_node; /* Job Ring device list */ |
42 | struct device *dev; | |
8e8ec596 KP |
43 | int ridx; |
44 | struct caam_job_ring __iomem *rregs; /* JobR's register space */ | |
2b163b5b | 45 | struct tasklet_struct irqtask; |
8e8ec596 | 46 | int irq; /* One per queue */ |
8e8ec596 | 47 | |
07defbfb RG |
48 | /* Number of scatterlist crypt transforms active on the JobR */ |
49 | atomic_t tfm_count ____cacheline_aligned; | |
50 | ||
8e8ec596 KP |
51 | /* Job ring info */ |
52 | int ringsize; /* Size of rings (assume input = output) */ | |
53 | struct caam_jrentry_info *entinfo; /* Alloc'ed 1 per ring entry */ | |
54 | spinlock_t inplock ____cacheline_aligned; /* Input ring index lock */ | |
55 | int inp_ring_write_index; /* Input index "tail" */ | |
56 | int head; /* entinfo (s/w ring) head index */ | |
57 | dma_addr_t *inpring; /* Base of input ring, alloc DMA-safe */ | |
58 | spinlock_t outlock ____cacheline_aligned; /* Output ring index lock */ | |
59 | int out_ring_read_index; /* Output index "tail" */ | |
60 | int tail; /* entinfo (s/w ring) tail index */ | |
61 | struct jr_outentry *outring; /* Base of output ring, DMA-safe */ | |
62 | }; | |
63 | ||
64 | /* | |
65 | * Driver-private storage for a single CAAM block instance | |
66 | */ | |
67 | struct caam_drv_private { | |
67c2315d HG |
68 | #ifdef CONFIG_CAAM_QI |
69 | struct device *qidev; | |
70 | #endif | |
8e8ec596 KP |
71 | |
72 | /* Physical-presence section */ | |
fb4562b2 NNL |
73 | struct caam_ctrl __iomem *ctrl; /* controller region */ |
74 | struct caam_deco __iomem *deco; /* DECO/CCB views */ | |
75 | struct caam_assurance __iomem *assure; | |
76 | struct caam_queue_if __iomem *qi; /* QI control region */ | |
77 | struct caam_job_ring __iomem *jr[4]; /* JobR's register space */ | |
8e8ec596 KP |
78 | |
79 | /* | |
80 | * Detected geometry block. Filled in from device tree if powerpc, | |
81 | * or from register-based version detection code | |
82 | */ | |
83 | u8 total_jobrs; /* Total Job Rings in device */ | |
84 | u8 qi_present; /* Nonzero if QI present in device */ | |
85 | int secvio_irq; /* Security violation interrupt number */ | |
17157c90 | 86 | int virt_en; /* Virtualization enabled in CAAM */ |
8e8ec596 | 87 | |
1005bccd | 88 | #define RNG4_MAX_HANDLES 2 |
b1f996e0 | 89 | /* RNG4 block */ |
1005bccd AP |
90 | u32 rng4_sh_init; /* This bitmap shows which of the State |
91 | Handles of the RNG4 block are initialized | |
92 | by this driver */ | |
b1f996e0 | 93 | |
24821c46 VM |
94 | struct clk *caam_ipg; |
95 | struct clk *caam_mem; | |
96 | struct clk *caam_aclk; | |
97 | struct clk *caam_emi_slow; | |
98 | ||
8e8ec596 KP |
99 | /* |
100 | * debugfs entries for developer view into driver/device | |
101 | * variables at runtime. | |
102 | */ | |
103 | #ifdef CONFIG_DEBUG_FS | |
104 | struct dentry *dfs_root; | |
105 | struct dentry *ctl; /* controller dir */ | |
8e8ec596 KP |
106 | struct debugfs_blob_wrapper ctl_kek_wrap, ctl_tkek_wrap, ctl_tdsk_wrap; |
107 | struct dentry *ctl_kek, *ctl_tkek, *ctl_tdsk; | |
108 | #endif | |
109 | }; | |
110 | ||
111 | void caam_jr_algapi_init(struct device *dev); | |
112 | void caam_jr_algapi_remove(struct device *dev); | |
67c2315d HG |
113 | |
114 | #ifdef CONFIG_DEBUG_FS | |
115 | static int caam_debugfs_u64_get(void *data, u64 *val) | |
116 | { | |
117 | *val = caam64_to_cpu(*(u64 *)data); | |
118 | return 0; | |
119 | } | |
120 | ||
121 | static int caam_debugfs_u32_get(void *data, u64 *val) | |
122 | { | |
123 | *val = caam32_to_cpu(*(u32 *)data); | |
124 | return 0; | |
125 | } | |
126 | ||
127 | DEFINE_SIMPLE_ATTRIBUTE(caam_fops_u32_ro, caam_debugfs_u32_get, NULL, "%llu\n"); | |
128 | DEFINE_SIMPLE_ATTRIBUTE(caam_fops_u64_ro, caam_debugfs_u64_get, NULL, "%llu\n"); | |
129 | #endif | |
130 | ||
8e8ec596 | 131 | #endif /* INTERN_H */ |