blob: e4a16b741371d1df496d6344be5fc214896ba50c [file] [log] [blame]
Kim Phillips8e8ec592011-03-13 16:54:26 +08001/*
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 */
33struct 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 */
42struct caam_drv_private_jr {
43 struct device *parentdev; /* points back to controller dev */
Vakul Garg3862de12013-04-15 09:55:51 +053044 struct platform_device *jr_pdev;/* points to platform device for JR */
Kim Phillips8e8ec592011-03-13 16:54:26 +080045 int ridx;
46 struct caam_job_ring __iomem *rregs; /* JobR's register space */
Kim Phillipsa0ca6ca2012-06-22 19:48:57 -050047 struct tasklet_struct irqtask;
Kim Phillips8e8ec592011-03-13 16:54:26 +080048 int irq; /* One per queue */
49 int assign; /* busy/free */
50
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 */
67struct caam_drv_private {
68
69 struct device *dev;
70 struct device **jrdev; /* Alloc'ed array per sub-device */
71 spinlock_t jr_alloc_lock;
72 struct platform_device *pdev;
73
74 /* Physical-presence section */
75 struct caam_ctrl *ctrl; /* controller region */
76 struct caam_deco **deco; /* DECO/CCB views */
77 struct caam_assurance *ac;
78 struct caam_queue_if *qi; /* QI control region */
79
80 /*
81 * Detected geometry block. Filled in from device tree if powerpc,
82 * or from register-based version detection code
83 */
84 u8 total_jobrs; /* Total Job Rings in device */
85 u8 qi_present; /* Nonzero if QI present in device */
86 int secvio_irq; /* Security violation interrupt number */
87
88 /* which jr allocated to scatterlist crypto */
89 atomic_t tfm_count ____cacheline_aligned;
Kim Phillips8e8ec592011-03-13 16:54:26 +080090 /* list of registered crypto algorithms (mk generic context handle?) */
91 struct list_head alg_list;
Yuan Kang045e3672012-06-22 19:48:47 -050092 /* list of registered hash algorithms (mk generic context handle?) */
93 struct list_head hash_list;
Kim Phillips8e8ec592011-03-13 16:54:26 +080094
95 /*
96 * debugfs entries for developer view into driver/device
97 * variables at runtime.
98 */
99#ifdef CONFIG_DEBUG_FS
100 struct dentry *dfs_root;
101 struct dentry *ctl; /* controller dir */
102 struct dentry *ctl_rq_dequeued, *ctl_ob_enc_req, *ctl_ib_dec_req;
103 struct dentry *ctl_ob_enc_bytes, *ctl_ob_prot_bytes;
104 struct dentry *ctl_ib_dec_bytes, *ctl_ib_valid_bytes;
105 struct dentry *ctl_faultaddr, *ctl_faultdetail, *ctl_faultstatus;
106
107 struct debugfs_blob_wrapper ctl_kek_wrap, ctl_tkek_wrap, ctl_tdsk_wrap;
108 struct dentry *ctl_kek, *ctl_tkek, *ctl_tdsk;
109#endif
110};
111
112void caam_jr_algapi_init(struct device *dev);
113void caam_jr_algapi_remove(struct device *dev);
114#endif /* INTERN_H */