2 * CAAM/SEC 4.x driver backend
3 * Private/internal definitions between modules
5 * Copyright 2008-2011 Freescale Semiconductor, Inc.
12 #define JOBR_UNASSIGNED 0
13 #define JOBR_ASSIGNED 1
15 /* Currently comes from Kconfig param as a ^2 (driver-required) */
16 #define JOBR_DEPTH (1 << CONFIG_CRYPTO_DEV_FSL_CAAM_RINGSIZE)
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
25 #define JOBR_INTC_TIME_THLD 0
26 #define JOBR_INTC_COUNT_THLD 0
30 * Storage for tracking each in-process entry moving across a ring
31 * Each entry on an output ring needs one of these
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 */
41 /* Private sub-storage for a single JobR */
42 struct caam_drv_private_jr
{
43 struct device
*parentdev
; /* points back to controller dev */
45 struct caam_job_ring __iomem
*rregs
; /* JobR's register space */
46 struct tasklet_struct irqtask
[NR_CPUS
];
47 int irq
; /* One per queue */
48 int assign
; /* busy/free */
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 */
64 * Driver-private storage for a single CAAM block instance
66 struct caam_drv_private
{
69 struct device
**jrdev
; /* Alloc'ed array per sub-device */
70 spinlock_t jr_alloc_lock
;
71 struct platform_device
*pdev
;
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 */
80 * Detected geometry block. Filled in from device tree if powerpc,
81 * or from register-based version detection code
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 */
87 /* which jr allocated to scatterlist crypto */
88 atomic_t tfm_count ____cacheline_aligned
;
89 int num_jrs_for_algapi
;
90 struct device
**algapi_jr
;
91 /* list of registered crypto algorithms (mk generic context handle?) */
92 struct list_head alg_list
;
95 * debugfs entries for developer view into driver/device
96 * variables at runtime.
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
;
106 struct debugfs_blob_wrapper ctl_kek_wrap
, ctl_tkek_wrap
, ctl_tdsk_wrap
;
107 struct dentry
*ctl_kek
, *ctl_tkek
, *ctl_tdsk
;
111 void caam_jr_algapi_init(struct device
*dev
);
112 void caam_jr_algapi_remove(struct device
*dev
);
113 #endif /* INTERN_H */