/* SPDX-License-Identifier: BSD-3-Clause */ /* * Freescale SEC (talitos) device register and descriptor header defines * * Copyright (c) 2006-2011 Freescale Semiconductor, Inc. */ #define TALITOS_TIMEOUT 100000 #define TALITOS1_MAX_DATA_LEN 32768 #define TALITOS2_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 { union { struct { /* SEC2 format */ __be16 len; /* length */ u8 j_extent; /* jump to sg link table and/or extent*/ u8 eptr; /* extended address */ }; struct { /* SEC1 format */ __be16 res; __be16 len1; /* length */ }; }; __be32 ptr; /* address */ }; /* descriptor */ struct talitos_desc { __be32 hdr; /* header high bits */ union { __be32 hdr_lo; /* header low bits */ __be32 hdr1; /* header for SEC1 */ }; struct talitos_ptr ptr[7]; /* ptr/len pair array */ __be32 next_desc; /* next descriptor (SEC1) */ }; #define TALITOS_DESC_SIZE (sizeof(struct talitos_desc) - sizeof(__be32)) /* * talitos_edesc - s/w-extended descriptor * @src_nents: number of segments in input scatterlist * @dst_nents: number of segments in output scatterlist * @iv_dma: dma address of iv for checking continuity and link table * @dma_len: length of dma mapped link_tbl space * @dma_link_tbl: bus physical address of link_tbl/buf * @desc: h/w descriptor * @link_tbl: input and output h/w link tables (if {src,dst}_nents > 1) (SEC2) * @buf: input and output buffeur (if {src,dst}_nents > 1) (SEC1) * * if decrypting (with authcheck), or either one of src_nents or dst_nents * is greater than 1, an integrity check value is concatenated to the end * of link_tbl data */ struct talitos_edesc { int src_nents; int dst_nents; dma_addr_t iv_dma; int dma_len; dma_addr_t dma_link_tbl; struct talitos_desc desc; union { DECLARE_FLEX_ARRAY(struct talitos_ptr, link_tbl); DECLARE_FLEX_ARRAY(u8, buf); }; }; /** * 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; void __iomem *reg_deu; void __iomem *reg_aesu; void __iomem *reg_mdeu; void __iomem *reg_afeu; void __iomem *reg_rngu; void __iomem *reg_pkeu; void __iomem *reg_keu; void __iomem *reg_crcu; 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; bool rng_registered; }; /* .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 #define TALITOS_FTR_SEC1 0x00000010 /* * If both CONFIG_CRYPTO_DEV_TALITOS1 and CONFIG_CRYPTO_DEV_TALITOS2 are * defined, we check the features which are set according to the device tree. * Otherwise, we answer true or false directly */ static inline bool has_ftr_sec1(struct talitos_private *priv) { if (IS_ENABLED(CONFIG_CRYPTO_DEV_TALITOS1) && IS_ENABLED(CONFIG_CRYPTO_DEV_TALITOS2)) return priv->features & TALITOS_FTR_SEC1; return IS_ENABLED(CONFIG_CRYPTO_DEV_TALITOS1); } /* * TALITOS_xxx_LO addresses point to the low data bits (32-63) of the register */ #define ISR1_FORMAT(x) (((x) << 28) | ((x) << 16)) #define ISR2_FORMAT(x) (((x) << 4) | (x)) /* 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 TALITOS1_MCR_SWR 0x1000000 /* s/w reset */ #define TALITOS2_MCR_SWR 0x1 /* s/w reset */ #define TALITOS_MCR_LO 0x1034 #define TALITOS_IMR 0x1008 /* interrupt mask register */ /* enable channel IRQs */ #define TALITOS1_IMR_INIT ISR1_FORMAT(0xf) #define TALITOS1_IMR_DONE ISR1_FORMAT(0x5) /* done IRQs */ /* enable channel IRQs */ #define TALITOS2_IMR_INIT (ISR2_FORMAT(0xf) | 0x10000) #define TALITOS2_IMR_DONE ISR1_FORMAT(0x5) /* done IRQs */ #define TALITOS_IMR_LO 0x100C #define TALITOS1_IMR_LO_INIT 0x2000000 /* allow RNGU error IRQs */ #define TALITOS2_IMR_LO_INIT 0x20000 /* allow RNGU error IRQs */ #define TALITOS_ISR 0x1010 /* interrupt status register */ #define TALITOS1_ISR_4CHERR ISR1_FORMAT(0xa) /* 4 ch errors mask */ #define TALITOS1_ISR_4CHDONE ISR1_FORMAT(0x5) /* 4 ch done mask */ #define TALITOS1_ISR_CH_0_ERR (2 << 28) /* ch 0 errors mask */ #define TALITOS1_ISR_CH_0_DONE (1 << 28) /* ch 0 done mask */ #define TALITOS1_ISR_TEA_ERR 0x00000040 #define TALITOS2_ISR_4CHERR ISR2_FORMAT(0xa) /* 4 ch errors mask */ #define TALITOS2_ISR_4CHDONE ISR2_FORMAT(0x5) /* 4 ch done mask */ #define TALITOS2_ISR_CH_0_ERR 2 /* ch 0 errors mask */ #define TALITOS2_ISR_CH_0_DONE 1 /* ch 0 done mask */ #define TALITOS2_ISR_CH_0_2_ERR ISR2_FORMAT(0x2) /* ch 0, 2 err mask */ #define TALITOS2_ISR_CH_0_2_DONE ISR2_FORMAT(0x1) /* ch 0, 2 done mask */ #define TALITOS2_ISR_CH_1_3_ERR ISR2_FORMAT(0x8) /* ch 1, 3 err mask */ #define TALITOS2_ISR_CH_1_3_DONE ISR2_FORMAT(0x4) /* ch 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 TALITOS1_CH_STRIDE 0x1000 #define TALITOS2_CH_STRIDE 0x100 /* channel configuration register */ #define TALITOS_CCCR 0x8 #define TALITOS2_CCCR_CONT 0x2 /* channel continue on SEC2 */ #define TALITOS2_CCCR_RESET 0x1 /* channel reset on SEC2 */ #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_NE 0x8 /* fetch next descriptor enab. */ #define TALITOS_CCCR_LO_NT 0x4 /* notification type */ #define TALITOS_CCCR_LO_CDIE 0x2 /* channel done IRQ enable */ #define TALITOS1_CCCR_LO_RESET 0x1 /* channel reset on SEC1 */ /* 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 registers base */ #define TALITOS2_DEU 0x2000 #define TALITOS2_AESU 0x4000 #define TALITOS2_MDEU 0x6000 #define TALITOS2_AFEU 0x8000 #define TALITOS2_RNGU 0xa000 #define TALITOS2_PKEU 0xc000 #define TALITOS2_KEU 0xe000 #define TALITOS2_CRCU 0xf000 #define TALITOS12_AESU 0x4000 #define TALITOS12_DEU 0x5000 #define TALITOS12_MDEU 0x6000 #define TALITOS10_AFEU 0x8000 #define TALITOS10_DEU 0xa000 #define TALITOS10_MDEU 0xc000 #define TALITOS10_RNGU 0xe000 #define TALITOS10_PKEU 0x10000 #define TALITOS10_AESU 0x12000 /* execution unit interrupt status registers */ #define TALITOS_EUDSR 0x10 /* data size */ #define TALITOS_EUDSR_LO 0x14 #define TALITOS_EURCR 0x18 /* reset control*/ #define TALITOS_EURCR_LO 0x1c #define TALITOS_EUSR 0x28 /* rng status */ #define TALITOS_EUSR_LO 0x2c #define TALITOS_EUISR 0x30 #define TALITOS_EUISR_LO 0x34 #define TALITOS_EUICR 0x38 /* int. control */ #define TALITOS_EUICR_LO 0x3c #define TALITOS_EU_FIFO 0x800 /* output FIFO */ #define TALITOS_EU_FIFO_LO 0x804 /* output FIFO */ /* DES unit */ #define TALITOS1_DEUICR_KPE 0x00200000 /* Key Parity Error */ /* message digest unit */ #define TALITOS_MDEUICR_LO_ICE 0x4000 /* integrity check IRQ enable */ /* random number unit */ #define TALITOS_RNGUSR_LO_RD 0x1 /* reset done */ #define TALITOS_RNGUSR_LO_OFL 0xff0000/* output FIFO length */ #define TALITOS_RNGURCR_LO_SR 0x1 /* software reset */ #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_MASK cpu_to_be32(0x00600000) #define DESC_HDR_MODE0_AESU_CBC cpu_to_be32(0x00200000) #define DESC_HDR_MODE0_AESU_CTR cpu_to_be32(0x00600000) #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_RET 0x02 #define DESC_PTR_LNKTBL_NEXT 0x01
