Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / crypto / caam / intern.h

diff --git a/kernel/drivers/crypto/caam/intern.h b/kernel/drivers/crypto/caam/intern.h
new file mode 100644 (file)
index 0000000..89b94cc
--- /dev/null
+++ b/kernel/drivers/crypto/caam/intern.h
@@ -0,0 +1,113 @@
+/*
+ * CAAM/SEC 4.x driver backend
+ * Private/internal definitions between modules
+ *
+ * Copyright 2008-2011 Freescale Semiconductor, Inc.
+ *
+ */
+
+#ifndef INTERN_H
+#define INTERN_H
+
+/* Currently comes from Kconfig param as a ^2 (driver-required) */
+#define JOBR_DEPTH (1 << CONFIG_CRYPTO_DEV_FSL_CAAM_RINGSIZE)
+
+/* Kconfig params for interrupt coalescing if selected (else zero) */
+#ifdef CONFIG_CRYPTO_DEV_FSL_CAAM_INTC
+#define JOBR_INTC JRCFG_ICEN
+#define JOBR_INTC_TIME_THLD CONFIG_CRYPTO_DEV_FSL_CAAM_INTC_TIME_THLD
+#define JOBR_INTC_COUNT_THLD CONFIG_CRYPTO_DEV_FSL_CAAM_INTC_COUNT_THLD
+#else
+#define JOBR_INTC 0
+#define JOBR_INTC_TIME_THLD 0
+#define JOBR_INTC_COUNT_THLD 0
+#endif
+
+/*
+ * Storage for tracking each in-process entry moving across a ring
+ * Each entry on an output ring needs one of these
+ */
+struct caam_jrentry_info {
+       void (*callbk)(struct device *dev, u32 *desc, u32 status, void *arg);
+       void *cbkarg;   /* Argument per ring entry */
+       u32 *desc_addr_virt;    /* Stored virt addr for postprocessing */
+       dma_addr_t desc_addr_dma;       /* Stored bus addr for done matching */
+       u32 desc_size;  /* Stored size for postprocessing, header derived */
+};
+
+/* Private sub-storage for a single JobR */
+struct caam_drv_private_jr {
+       struct list_head        list_node;      /* Job Ring device list */
+       struct device           *dev;
+       int ridx;
+       struct caam_job_ring __iomem *rregs;    /* JobR's register space */
+       struct tasklet_struct irqtask;
+       int irq;                        /* One per queue */
+
+       /* Number of scatterlist crypt transforms active on the JobR */
+       atomic_t tfm_count ____cacheline_aligned;
+
+       /* Job ring info */
+       int ringsize;   /* Size of rings (assume input = output) */
+       struct caam_jrentry_info *entinfo;      /* Alloc'ed 1 per ring entry */
+       spinlock_t inplock ____cacheline_aligned; /* Input ring index lock */
+       int inp_ring_write_index;       /* Input index "tail" */
+       int head;                       /* entinfo (s/w ring) head index */
+       dma_addr_t *inpring;    /* Base of input ring, alloc DMA-safe */
+       spinlock_t outlock ____cacheline_aligned; /* Output ring index lock */
+       int out_ring_read_index;        /* Output index "tail" */
+       int tail;                       /* entinfo (s/w ring) tail index */
+       struct jr_outentry *outring;    /* Base of output ring, DMA-safe */
+};
+
+/*
+ * Driver-private storage for a single CAAM block instance
+ */
+struct caam_drv_private {
+
+       struct device *dev;
+       struct platform_device **jrpdev; /* Alloc'ed array per sub-device */
+       struct platform_device *pdev;
+
+       /* Physical-presence section */
+       struct caam_ctrl __iomem *ctrl; /* controller region */
+       struct caam_deco __iomem *deco; /* DECO/CCB views */
+       struct caam_assurance __iomem *assure;
+       struct caam_queue_if __iomem *qi; /* QI control region */
+       struct caam_job_ring __iomem *jr[4];    /* JobR's register space */
+
+       /*
+        * Detected geometry block. Filled in from device tree if powerpc,
+        * or from register-based version detection code
+        */
+       u8 total_jobrs;         /* Total Job Rings in device */
+       u8 qi_present;          /* Nonzero if QI present in device */
+       int secvio_irq;         /* Security violation interrupt number */
+       int virt_en;            /* Virtualization enabled in CAAM */
+
+#define        RNG4_MAX_HANDLES 2
+       /* RNG4 block */
+       u32 rng4_sh_init;       /* This bitmap shows which of the State
+                                  Handles of the RNG4 block are initialized
+                                  by this driver */
+
+       /*
+        * debugfs entries for developer view into driver/device
+        * variables at runtime.
+        */
+#ifdef CONFIG_DEBUG_FS
+       struct dentry *dfs_root;
+       struct dentry *ctl; /* controller dir */
+       struct dentry *ctl_rq_dequeued, *ctl_ob_enc_req, *ctl_ib_dec_req;
+       struct dentry *ctl_ob_enc_bytes, *ctl_ob_prot_bytes;
+       struct dentry *ctl_ib_dec_bytes, *ctl_ib_valid_bytes;
+       struct dentry *ctl_faultaddr, *ctl_faultdetail, *ctl_faultstatus;
+
+       struct debugfs_blob_wrapper ctl_kek_wrap, ctl_tkek_wrap, ctl_tdsk_wrap;
+       struct dentry *ctl_kek, *ctl_tkek, *ctl_tdsk;
+#endif
+};
+
+void caam_jr_algapi_init(struct device *dev);
+void caam_jr_algapi_remove(struct device *dev);
+#endif /* INTERN_H */