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Commit | Line | Data |
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8e8ec596 KP |
1 | /* |
2 | * CAAM/SEC 4.x driver backend | |
3 | * Private/internal definitions between modules | |
4 | * | |
5 | * Copyright 2008-2011 Freescale Semiconductor, Inc. | |
6 | * | |
7 | */ | |
8 | ||
9 | #ifndef INTERN_H | |
10 | #define INTERN_H | |
11 | ||
8e8ec596 KP |
12 | /* Currently comes from Kconfig param as a ^2 (driver-required) */ |
13 | #define JOBR_DEPTH (1 << CONFIG_CRYPTO_DEV_FSL_CAAM_RINGSIZE) | |
14 | ||
15 | /* Kconfig params for interrupt coalescing if selected (else zero) */ | |
16 | #ifdef CONFIG_CRYPTO_DEV_FSL_CAAM_INTC | |
17 | #define JOBR_INTC JRCFG_ICEN | |
18 | #define JOBR_INTC_TIME_THLD CONFIG_CRYPTO_DEV_FSL_CAAM_INTC_TIME_THLD | |
19 | #define JOBR_INTC_COUNT_THLD CONFIG_CRYPTO_DEV_FSL_CAAM_INTC_COUNT_THLD | |
20 | #else | |
21 | #define JOBR_INTC 0 | |
22 | #define JOBR_INTC_TIME_THLD 0 | |
23 | #define JOBR_INTC_COUNT_THLD 0 | |
24 | #endif | |
25 | ||
26 | /* | |
27 | * Storage for tracking each in-process entry moving across a ring | |
28 | * Each entry on an output ring needs one of these | |
29 | */ | |
30 | struct caam_jrentry_info { | |
31 | void (*callbk)(struct device *dev, u32 *desc, u32 status, void *arg); | |
32 | void *cbkarg; /* Argument per ring entry */ | |
33 | u32 *desc_addr_virt; /* Stored virt addr for postprocessing */ | |
34 | dma_addr_t desc_addr_dma; /* Stored bus addr for done matching */ | |
35 | u32 desc_size; /* Stored size for postprocessing, header derived */ | |
36 | }; | |
37 | ||
38 | /* Private sub-storage for a single JobR */ | |
39 | struct caam_drv_private_jr { | |
313ea293 RG |
40 | struct list_head list_node; /* Job Ring device list */ |
41 | struct device *dev; | |
8e8ec596 KP |
42 | int ridx; |
43 | struct caam_job_ring __iomem *rregs; /* JobR's register space */ | |
2b163b5b | 44 | struct tasklet_struct irqtask; |
8e8ec596 | 45 | int irq; /* One per queue */ |
8e8ec596 | 46 | |
07defbfb RG |
47 | /* Number of scatterlist crypt transforms active on the JobR */ |
48 | atomic_t tfm_count ____cacheline_aligned; | |
49 | ||
8e8ec596 KP |
50 | /* Job ring info */ |
51 | int ringsize; /* Size of rings (assume input = output) */ | |
52 | struct caam_jrentry_info *entinfo; /* Alloc'ed 1 per ring entry */ | |
53 | spinlock_t inplock ____cacheline_aligned; /* Input ring index lock */ | |
54 | int inp_ring_write_index; /* Input index "tail" */ | |
55 | int head; /* entinfo (s/w ring) head index */ | |
56 | dma_addr_t *inpring; /* Base of input ring, alloc DMA-safe */ | |
57 | spinlock_t outlock ____cacheline_aligned; /* Output ring index lock */ | |
58 | int out_ring_read_index; /* Output index "tail" */ | |
59 | int tail; /* entinfo (s/w ring) tail index */ | |
60 | struct jr_outentry *outring; /* Base of output ring, DMA-safe */ | |
61 | }; | |
62 | ||
63 | /* | |
64 | * Driver-private storage for a single CAAM block instance | |
65 | */ | |
66 | struct caam_drv_private { | |
67 | ||
68 | struct device *dev; | |
67c2315d HG |
69 | #ifdef CONFIG_CAAM_QI |
70 | struct device *qidev; | |
71 | #endif | |
8e8ec596 KP |
72 | struct platform_device *pdev; |
73 | ||
74 | /* Physical-presence section */ | |
fb4562b2 NNL |
75 | struct caam_ctrl __iomem *ctrl; /* controller region */ |
76 | struct caam_deco __iomem *deco; /* DECO/CCB views */ | |
77 | struct caam_assurance __iomem *assure; | |
78 | struct caam_queue_if __iomem *qi; /* QI control region */ | |
79 | struct caam_job_ring __iomem *jr[4]; /* JobR's register space */ | |
8e8ec596 KP |
80 | |
81 | /* | |
82 | * Detected geometry block. Filled in from device tree if powerpc, | |
83 | * or from register-based version detection code | |
84 | */ | |
85 | u8 total_jobrs; /* Total Job Rings in device */ | |
86 | u8 qi_present; /* Nonzero if QI present in device */ | |
87 | int secvio_irq; /* Security violation interrupt number */ | |
17157c90 | 88 | int virt_en; /* Virtualization enabled in CAAM */ |
8e8ec596 | 89 | |
1005bccd | 90 | #define RNG4_MAX_HANDLES 2 |
b1f996e0 | 91 | /* RNG4 block */ |
1005bccd AP |
92 | u32 rng4_sh_init; /* This bitmap shows which of the State |
93 | Handles of the RNG4 block are initialized | |
94 | by this driver */ | |
b1f996e0 | 95 | |
24821c46 VM |
96 | struct clk *caam_ipg; |
97 | struct clk *caam_mem; | |
98 | struct clk *caam_aclk; | |
99 | struct clk *caam_emi_slow; | |
100 | ||
8e8ec596 KP |
101 | /* |
102 | * debugfs entries for developer view into driver/device | |
103 | * variables at runtime. | |
104 | */ | |
105 | #ifdef CONFIG_DEBUG_FS | |
106 | struct dentry *dfs_root; | |
107 | struct dentry *ctl; /* controller dir */ | |
108 | struct dentry *ctl_rq_dequeued, *ctl_ob_enc_req, *ctl_ib_dec_req; | |
109 | struct dentry *ctl_ob_enc_bytes, *ctl_ob_prot_bytes; | |
110 | struct dentry *ctl_ib_dec_bytes, *ctl_ib_valid_bytes; | |
111 | struct dentry *ctl_faultaddr, *ctl_faultdetail, *ctl_faultstatus; | |
112 | ||
113 | struct debugfs_blob_wrapper ctl_kek_wrap, ctl_tkek_wrap, ctl_tdsk_wrap; | |
114 | struct dentry *ctl_kek, *ctl_tkek, *ctl_tdsk; | |
67c2315d HG |
115 | #ifdef CONFIG_CAAM_QI |
116 | struct dentry *qi_congested; | |
117 | #endif | |
8e8ec596 KP |
118 | #endif |
119 | }; | |
120 | ||
121 | void caam_jr_algapi_init(struct device *dev); | |
122 | void caam_jr_algapi_remove(struct device *dev); | |
67c2315d HG |
123 | |
124 | #ifdef CONFIG_DEBUG_FS | |
125 | static int caam_debugfs_u64_get(void *data, u64 *val) | |
126 | { | |
127 | *val = caam64_to_cpu(*(u64 *)data); | |
128 | return 0; | |
129 | } | |
130 | ||
131 | static int caam_debugfs_u32_get(void *data, u64 *val) | |
132 | { | |
133 | *val = caam32_to_cpu(*(u32 *)data); | |
134 | return 0; | |
135 | } | |
136 | ||
137 | DEFINE_SIMPLE_ATTRIBUTE(caam_fops_u32_ro, caam_debugfs_u32_get, NULL, "%llu\n"); | |
138 | DEFINE_SIMPLE_ATTRIBUTE(caam_fops_u64_ro, caam_debugfs_u64_get, NULL, "%llu\n"); | |
139 | #endif | |
140 | ||
8e8ec596 | 141 | #endif /* INTERN_H */ |