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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 | ||
12 | #define JOBR_UNASSIGNED 0 | |
13 | #define JOBR_ASSIGNED 1 | |
14 | ||
15 | /* Currently comes from Kconfig param as a ^2 (driver-required) */ | |
16 | #define JOBR_DEPTH (1 << CONFIG_CRYPTO_DEV_FSL_CAAM_RINGSIZE) | |
17 | ||
18 | /* Kconfig params for interrupt coalescing if selected (else zero) */ | |
19 | #ifdef CONFIG_CRYPTO_DEV_FSL_CAAM_INTC | |
20 | #define JOBR_INTC JRCFG_ICEN | |
21 | #define JOBR_INTC_TIME_THLD CONFIG_CRYPTO_DEV_FSL_CAAM_INTC_TIME_THLD | |
22 | #define JOBR_INTC_COUNT_THLD CONFIG_CRYPTO_DEV_FSL_CAAM_INTC_COUNT_THLD | |
23 | #else | |
24 | #define JOBR_INTC 0 | |
25 | #define JOBR_INTC_TIME_THLD 0 | |
26 | #define JOBR_INTC_COUNT_THLD 0 | |
27 | #endif | |
28 | ||
29 | /* | |
30 | * Storage for tracking each in-process entry moving across a ring | |
31 | * Each entry on an output ring needs one of these | |
32 | */ | |
33 | struct caam_jrentry_info { | |
34 | void (*callbk)(struct device *dev, u32 *desc, u32 status, void *arg); | |
35 | void *cbkarg; /* Argument per ring entry */ | |
36 | u32 *desc_addr_virt; /* Stored virt addr for postprocessing */ | |
37 | dma_addr_t desc_addr_dma; /* Stored bus addr for done matching */ | |
38 | u32 desc_size; /* Stored size for postprocessing, header derived */ | |
39 | }; | |
40 | ||
41 | /* Private sub-storage for a single JobR */ | |
42 | struct caam_drv_private_jr { | |
43 | struct device *parentdev; /* points back to controller dev */ | |
44 | int ridx; | |
45 | struct caam_job_ring __iomem *rregs; /* JobR's register space */ | |
a0ca6ca0 | 46 | struct tasklet_struct irqtask; |
8e8ec596 KP |
47 | int irq; /* One per queue */ |
48 | int assign; /* busy/free */ | |
49 | ||
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; | |
69 | struct device **jrdev; /* Alloc'ed array per sub-device */ | |
70 | spinlock_t jr_alloc_lock; | |
71 | struct platform_device *pdev; | |
72 | ||
73 | /* Physical-presence section */ | |
74 | struct caam_ctrl *ctrl; /* controller region */ | |
75 | struct caam_deco **deco; /* DECO/CCB views */ | |
76 | struct caam_assurance *ac; | |
77 | struct caam_queue_if *qi; /* QI control region */ | |
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 */ | |
86 | ||
87 | /* which jr allocated to scatterlist crypto */ | |
88 | atomic_t tfm_count ____cacheline_aligned; | |
8e8ec596 KP |
89 | /* list of registered crypto algorithms (mk generic context handle?) */ |
90 | struct list_head alg_list; | |
045e3678 YK |
91 | /* list of registered hash algorithms (mk generic context handle?) */ |
92 | struct list_head hash_list; | |
8e8ec596 KP |
93 | |
94 | /* | |
95 | * debugfs entries for developer view into driver/device | |
96 | * variables at runtime. | |
97 | */ | |
98 | #ifdef CONFIG_DEBUG_FS | |
99 | struct dentry *dfs_root; | |
100 | struct dentry *ctl; /* controller dir */ | |
101 | struct dentry *ctl_rq_dequeued, *ctl_ob_enc_req, *ctl_ib_dec_req; | |
102 | struct dentry *ctl_ob_enc_bytes, *ctl_ob_prot_bytes; | |
103 | struct dentry *ctl_ib_dec_bytes, *ctl_ib_valid_bytes; | |
104 | struct dentry *ctl_faultaddr, *ctl_faultdetail, *ctl_faultstatus; | |
105 | ||
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); | |
113 | #endif /* INTERN_H */ |