forked from Minki/linux
357fb60502
With this, now all combinations of CBC: AES, 3DES-EDE with HMAC: SHA-1, SHA-224, SHA-256, SHA-384, SHA-512 are supported. Signed-off-by: Horia Geanta <horia.geanta@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
352 lines
14 KiB
C
352 lines
14 KiB
C
/*
|
|
* 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
|