--- /dev/null
+/*
+ * Freescale SEC (talitos) device register and descriptor header defines
+ *
+ * Copyright (c) 2006-2011 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#define TALITOS_TIMEOUT 100000
+#define TALITOS_MAX_DATA_LEN 65535
+
+#define DESC_TYPE(desc_hdr) ((be32_to_cpu(desc_hdr) >> 3) & 0x1f)
+#define PRIMARY_EU(desc_hdr) ((be32_to_cpu(desc_hdr) >> 28) & 0xf)
+#define SECONDARY_EU(desc_hdr) ((be32_to_cpu(desc_hdr) >> 16) & 0xf)
+
+/* descriptor pointer entry */
+struct talitos_ptr {
+ __be16 len; /* length */
+ u8 j_extent; /* jump to sg link table and/or extent */
+ u8 eptr; /* extended address */
+ __be32 ptr; /* address */
+};
+
+static const struct talitos_ptr zero_entry = {
+ .len = 0,
+ .j_extent = 0,
+ .eptr = 0,
+ .ptr = 0
+};
+
+/* descriptor */
+struct talitos_desc {
+ __be32 hdr; /* header high bits */
+ __be32 hdr_lo; /* header low bits */
+ struct talitos_ptr ptr[7]; /* ptr/len pair array */
+};
+
+/**
+ * talitos_request - descriptor submission request
+ * @desc: descriptor pointer (kernel virtual)
+ * @dma_desc: descriptor's physical bus address
+ * @callback: whom to call when descriptor processing is done
+ * @context: caller context (optional)
+ */
+struct talitos_request {
+ struct talitos_desc *desc;
+ dma_addr_t dma_desc;
+ void (*callback) (struct device *dev, struct talitos_desc *desc,
+ void *context, int error);
+ void *context;
+};
+
+/* per-channel fifo management */
+struct talitos_channel {
+ void __iomem *reg;
+
+ /* request fifo */
+ struct talitos_request *fifo;
+
+ /* number of requests pending in channel h/w fifo */
+ atomic_t submit_count ____cacheline_aligned;
+
+ /* request submission (head) lock */
+ spinlock_t head_lock ____cacheline_aligned;
+ /* index to next free descriptor request */
+ int head;
+
+ /* request release (tail) lock */
+ spinlock_t tail_lock ____cacheline_aligned;
+ /* index to next in-progress/done descriptor request */
+ int tail;
+};
+
+struct talitos_private {
+ struct device *dev;
+ struct platform_device *ofdev;
+ void __iomem *reg;
+ int irq[2];
+
+ /* SEC global registers lock */
+ spinlock_t reg_lock ____cacheline_aligned;
+
+ /* SEC version geometry (from device tree node) */
+ unsigned int num_channels;
+ unsigned int chfifo_len;
+ unsigned int exec_units;
+ unsigned int desc_types;
+
+ /* SEC Compatibility info */
+ unsigned long features;
+
+ /*
+ * length of the request fifo
+ * fifo_len is chfifo_len rounded up to next power of 2
+ * so we can use bitwise ops to wrap
+ */
+ unsigned int fifo_len;
+
+ struct talitos_channel *chan;
+
+ /* next channel to be assigned next incoming descriptor */
+ atomic_t last_chan ____cacheline_aligned;
+
+ /* request callback tasklet */
+ struct tasklet_struct done_task[2];
+
+ /* list of registered algorithms */
+ struct list_head alg_list;
+
+ /* hwrng device */
+ struct hwrng rng;
+};
+
+extern int talitos_submit(struct device *dev, int ch, struct talitos_desc *desc,
+ void (*callback)(struct device *dev,
+ struct talitos_desc *desc,
+ void *context, int error),
+ void *context);
+
+/* .features flag */
+#define TALITOS_FTR_SRC_LINK_TBL_LEN_INCLUDES_EXTENT 0x00000001
+#define TALITOS_FTR_HW_AUTH_CHECK 0x00000002
+#define TALITOS_FTR_SHA224_HWINIT 0x00000004
+#define TALITOS_FTR_HMAC_OK 0x00000008
+
+/*
+ * TALITOS_xxx_LO addresses point to the low data bits (32-63) of the register
+ */
+
+/* global register offset addresses */
+#define TALITOS_MCR 0x1030 /* master control register */
+#define TALITOS_MCR_RCA0 (1 << 15) /* remap channel 0 */
+#define TALITOS_MCR_RCA1 (1 << 14) /* remap channel 1 */
+#define TALITOS_MCR_RCA2 (1 << 13) /* remap channel 2 */
+#define TALITOS_MCR_RCA3 (1 << 12) /* remap channel 3 */
+#define TALITOS_MCR_SWR 0x1 /* s/w reset */
+#define TALITOS_MCR_LO 0x1034
+#define TALITOS_IMR 0x1008 /* interrupt mask register */
+#define TALITOS_IMR_INIT 0x100ff /* enable channel IRQs */
+#define TALITOS_IMR_DONE 0x00055 /* done IRQs */
+#define TALITOS_IMR_LO 0x100C
+#define TALITOS_IMR_LO_INIT 0x20000 /* allow RNGU error IRQs */
+#define TALITOS_ISR 0x1010 /* interrupt status register */
+#define TALITOS_ISR_4CHERR 0xaa /* 4 channel errors mask */
+#define TALITOS_ISR_4CHDONE 0x55 /* 4 channel done mask */
+#define TALITOS_ISR_CH_0_2_ERR 0x22 /* channels 0, 2 errors mask */
+#define TALITOS_ISR_CH_0_2_DONE 0x11 /* channels 0, 2 done mask */
+#define TALITOS_ISR_CH_1_3_ERR 0x88 /* channels 1, 3 errors mask */
+#define TALITOS_ISR_CH_1_3_DONE 0x44 /* channels 1, 3 done mask */
+#define TALITOS_ISR_LO 0x1014
+#define TALITOS_ICR 0x1018 /* interrupt clear register */
+#define TALITOS_ICR_LO 0x101C
+
+/* channel register address stride */
+#define TALITOS_CH_BASE_OFFSET 0x1000 /* default channel map base */
+#define TALITOS_CH_STRIDE 0x100
+
+/* channel configuration register */
+#define TALITOS_CCCR 0x8
+#define TALITOS_CCCR_CONT 0x2 /* channel continue */
+#define TALITOS_CCCR_RESET 0x1 /* channel reset */
+#define TALITOS_CCCR_LO 0xc
+#define TALITOS_CCCR_LO_IWSE 0x80 /* chan. ICCR writeback enab. */
+#define TALITOS_CCCR_LO_EAE 0x20 /* extended address enable */
+#define TALITOS_CCCR_LO_CDWE 0x10 /* chan. done writeback enab. */
+#define TALITOS_CCCR_LO_NT 0x4 /* notification type */
+#define TALITOS_CCCR_LO_CDIE 0x2 /* channel done IRQ enable */
+
+/* CCPSR: channel pointer status register */
+#define TALITOS_CCPSR 0x10
+#define TALITOS_CCPSR_LO 0x14
+#define TALITOS_CCPSR_LO_DOF 0x8000 /* double FF write oflow error */
+#define TALITOS_CCPSR_LO_SOF 0x4000 /* single FF write oflow error */
+#define TALITOS_CCPSR_LO_MDTE 0x2000 /* master data transfer error */
+#define TALITOS_CCPSR_LO_SGDLZ 0x1000 /* s/g data len zero error */
+#define TALITOS_CCPSR_LO_FPZ 0x0800 /* fetch ptr zero error */
+#define TALITOS_CCPSR_LO_IDH 0x0400 /* illegal desc hdr error */
+#define TALITOS_CCPSR_LO_IEU 0x0200 /* invalid EU error */
+#define TALITOS_CCPSR_LO_EU 0x0100 /* EU error detected */
+#define TALITOS_CCPSR_LO_GB 0x0080 /* gather boundary error */
+#define TALITOS_CCPSR_LO_GRL 0x0040 /* gather return/length error */
+#define TALITOS_CCPSR_LO_SB 0x0020 /* scatter boundary error */
+#define TALITOS_CCPSR_LO_SRL 0x0010 /* scatter return/length error */
+
+/* channel fetch fifo register */
+#define TALITOS_FF 0x48
+#define TALITOS_FF_LO 0x4c
+
+/* current descriptor pointer register */
+#define TALITOS_CDPR 0x40
+#define TALITOS_CDPR_LO 0x44
+
+/* descriptor buffer register */
+#define TALITOS_DESCBUF 0x80
+#define TALITOS_DESCBUF_LO 0x84
+
+/* gather link table */
+#define TALITOS_GATHER 0xc0
+#define TALITOS_GATHER_LO 0xc4
+
+/* scatter link table */
+#define TALITOS_SCATTER 0xe0
+#define TALITOS_SCATTER_LO 0xe4
+
+/* execution unit interrupt status registers */
+#define TALITOS_DEUISR 0x2030 /* DES unit */
+#define TALITOS_DEUISR_LO 0x2034
+#define TALITOS_AESUISR 0x4030 /* AES unit */
+#define TALITOS_AESUISR_LO 0x4034
+#define TALITOS_MDEUISR 0x6030 /* message digest unit */
+#define TALITOS_MDEUISR_LO 0x6034
+#define TALITOS_MDEUICR 0x6038 /* interrupt control */
+#define TALITOS_MDEUICR_LO 0x603c
+#define TALITOS_MDEUICR_LO_ICE 0x4000 /* integrity check IRQ enable */
+#define TALITOS_AFEUISR 0x8030 /* arc4 unit */
+#define TALITOS_AFEUISR_LO 0x8034
+#define TALITOS_RNGUISR 0xa030 /* random number unit */
+#define TALITOS_RNGUISR_LO 0xa034
+#define TALITOS_RNGUSR 0xa028 /* rng status */
+#define TALITOS_RNGUSR_LO 0xa02c
+#define TALITOS_RNGUSR_LO_RD 0x1 /* reset done */
+#define TALITOS_RNGUSR_LO_OFL 0xff0000/* output FIFO length */
+#define TALITOS_RNGUDSR 0xa010 /* data size */
+#define TALITOS_RNGUDSR_LO 0xa014
+#define TALITOS_RNGU_FIFO 0xa800 /* output FIFO */
+#define TALITOS_RNGU_FIFO_LO 0xa804 /* output FIFO */
+#define TALITOS_RNGURCR 0xa018 /* reset control */
+#define TALITOS_RNGURCR_LO 0xa01c
+#define TALITOS_RNGURCR_LO_SR 0x1 /* software reset */
+#define TALITOS_PKEUISR 0xc030 /* public key unit */
+#define TALITOS_PKEUISR_LO 0xc034
+#define TALITOS_KEUISR 0xe030 /* kasumi unit */
+#define TALITOS_KEUISR_LO 0xe034
+#define TALITOS_CRCUISR 0xf030 /* cyclic redundancy check unit*/
+#define TALITOS_CRCUISR_LO 0xf034
+
+#define TALITOS_MDEU_CONTEXT_SIZE_MD5_SHA1_SHA256 0x28
+#define TALITOS_MDEU_CONTEXT_SIZE_SHA384_SHA512 0x48
+
+/*
+ * talitos descriptor header (hdr) bits
+ */
+
+/* written back when done */
+#define DESC_HDR_DONE cpu_to_be32(0xff000000)
+#define DESC_HDR_LO_ICCR1_MASK cpu_to_be32(0x00180000)
+#define DESC_HDR_LO_ICCR1_PASS cpu_to_be32(0x00080000)
+#define DESC_HDR_LO_ICCR1_FAIL cpu_to_be32(0x00100000)
+
+/* primary execution unit select */
+#define DESC_HDR_SEL0_MASK cpu_to_be32(0xf0000000)
+#define DESC_HDR_SEL0_AFEU cpu_to_be32(0x10000000)
+#define DESC_HDR_SEL0_DEU cpu_to_be32(0x20000000)
+#define DESC_HDR_SEL0_MDEUA cpu_to_be32(0x30000000)
+#define DESC_HDR_SEL0_MDEUB cpu_to_be32(0xb0000000)
+#define DESC_HDR_SEL0_RNG cpu_to_be32(0x40000000)
+#define DESC_HDR_SEL0_PKEU cpu_to_be32(0x50000000)
+#define DESC_HDR_SEL0_AESU cpu_to_be32(0x60000000)
+#define DESC_HDR_SEL0_KEU cpu_to_be32(0x70000000)
+#define DESC_HDR_SEL0_CRCU cpu_to_be32(0x80000000)
+
+/* primary execution unit mode (MODE0) and derivatives */
+#define DESC_HDR_MODE0_ENCRYPT cpu_to_be32(0x00100000)
+#define DESC_HDR_MODE0_AESU_CBC cpu_to_be32(0x00200000)
+#define DESC_HDR_MODE0_DEU_CBC cpu_to_be32(0x00400000)
+#define DESC_HDR_MODE0_DEU_3DES cpu_to_be32(0x00200000)
+#define DESC_HDR_MODE0_MDEU_CONT cpu_to_be32(0x08000000)
+#define DESC_HDR_MODE0_MDEU_INIT cpu_to_be32(0x01000000)
+#define DESC_HDR_MODE0_MDEU_HMAC cpu_to_be32(0x00800000)
+#define DESC_HDR_MODE0_MDEU_PAD cpu_to_be32(0x00400000)
+#define DESC_HDR_MODE0_MDEU_SHA224 cpu_to_be32(0x00300000)
+#define DESC_HDR_MODE0_MDEU_MD5 cpu_to_be32(0x00200000)
+#define DESC_HDR_MODE0_MDEU_SHA256 cpu_to_be32(0x00100000)
+#define DESC_HDR_MODE0_MDEU_SHA1 cpu_to_be32(0x00000000)
+#define DESC_HDR_MODE0_MDEUB_SHA384 cpu_to_be32(0x00000000)
+#define DESC_HDR_MODE0_MDEUB_SHA512 cpu_to_be32(0x00200000)
+#define DESC_HDR_MODE0_MDEU_MD5_HMAC (DESC_HDR_MODE0_MDEU_MD5 | \
+ DESC_HDR_MODE0_MDEU_HMAC)
+#define DESC_HDR_MODE0_MDEU_SHA256_HMAC (DESC_HDR_MODE0_MDEU_SHA256 | \
+ DESC_HDR_MODE0_MDEU_HMAC)
+#define DESC_HDR_MODE0_MDEU_SHA1_HMAC (DESC_HDR_MODE0_MDEU_SHA1 | \
+ DESC_HDR_MODE0_MDEU_HMAC)
+
+/* secondary execution unit select (SEL1) */
+#define DESC_HDR_SEL1_MASK cpu_to_be32(0x000f0000)
+#define DESC_HDR_SEL1_MDEUA cpu_to_be32(0x00030000)
+#define DESC_HDR_SEL1_MDEUB cpu_to_be32(0x000b0000)
+#define DESC_HDR_SEL1_CRCU cpu_to_be32(0x00080000)
+
+/* secondary execution unit mode (MODE1) and derivatives */
+#define DESC_HDR_MODE1_MDEU_CICV cpu_to_be32(0x00004000)
+#define DESC_HDR_MODE1_MDEU_INIT cpu_to_be32(0x00001000)
+#define DESC_HDR_MODE1_MDEU_HMAC cpu_to_be32(0x00000800)
+#define DESC_HDR_MODE1_MDEU_PAD cpu_to_be32(0x00000400)
+#define DESC_HDR_MODE1_MDEU_SHA224 cpu_to_be32(0x00000300)
+#define DESC_HDR_MODE1_MDEU_MD5 cpu_to_be32(0x00000200)
+#define DESC_HDR_MODE1_MDEU_SHA256 cpu_to_be32(0x00000100)
+#define DESC_HDR_MODE1_MDEU_SHA1 cpu_to_be32(0x00000000)
+#define DESC_HDR_MODE1_MDEUB_SHA384 cpu_to_be32(0x00000000)
+#define DESC_HDR_MODE1_MDEUB_SHA512 cpu_to_be32(0x00000200)
+#define DESC_HDR_MODE1_MDEU_MD5_HMAC (DESC_HDR_MODE1_MDEU_MD5 | \
+ DESC_HDR_MODE1_MDEU_HMAC)
+#define DESC_HDR_MODE1_MDEU_SHA256_HMAC (DESC_HDR_MODE1_MDEU_SHA256 | \
+ DESC_HDR_MODE1_MDEU_HMAC)
+#define DESC_HDR_MODE1_MDEU_SHA1_HMAC (DESC_HDR_MODE1_MDEU_SHA1 | \
+ DESC_HDR_MODE1_MDEU_HMAC)
+#define DESC_HDR_MODE1_MDEU_SHA224_HMAC (DESC_HDR_MODE1_MDEU_SHA224 | \
+ DESC_HDR_MODE1_MDEU_HMAC)
+#define DESC_HDR_MODE1_MDEUB_SHA384_HMAC (DESC_HDR_MODE1_MDEUB_SHA384 | \
+ DESC_HDR_MODE1_MDEU_HMAC)
+#define DESC_HDR_MODE1_MDEUB_SHA512_HMAC (DESC_HDR_MODE1_MDEUB_SHA512 | \
+ DESC_HDR_MODE1_MDEU_HMAC)
+
+/* direction of overall data flow (DIR) */
+#define DESC_HDR_DIR_INBOUND cpu_to_be32(0x00000002)
+
+/* request done notification (DN) */
+#define DESC_HDR_DONE_NOTIFY cpu_to_be32(0x00000001)
+
+/* descriptor types */
+#define DESC_HDR_TYPE_AESU_CTR_NONSNOOP cpu_to_be32(0 << 3)
+#define DESC_HDR_TYPE_IPSEC_ESP cpu_to_be32(1 << 3)
+#define DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU cpu_to_be32(2 << 3)
+#define DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU cpu_to_be32(4 << 3)
+
+/* link table extent field bits */
+#define DESC_PTR_LNKTBL_JUMP 0x80
+#define DESC_PTR_LNKTBL_RETURN 0x02
+#define DESC_PTR_LNKTBL_NEXT 0x01
Code Review / kvmfornfv.git / blobdiff