| /* SPDX-License-Identifier: GPL-2.0 */ | |
| /* | |
| * CPPI5 descriptors interface | |
| * | |
| * Copyright (C) 2019 Texas Instruments Incorporated - https://www.ti.com | |
| */ | |
| #ifndef __TI_CPPI5_H__ | |
| #define __TI_CPPI5_H__ | |
| #include <linux/bitops.h> | |
| #include <linux/printk.h> | |
| #include <linux/bug.h> | |
| /** | |
| * struct cppi5_desc_hdr_t - Descriptor header, present in all types of | |
| * descriptors | |
| * @pkt_info0: Packet info word 0 (n/a in Buffer desc) | |
| * @pkt_info0: Packet info word 1 (n/a in Buffer desc) | |
| * @pkt_info0: Packet info word 2 (n/a in Buffer desc) | |
| * @src_dst_tag: Packet info word 3 (n/a in Buffer desc) | |
| */ | |
| struct cppi5_desc_hdr_t { | |
| u32 pkt_info0; | |
| u32 pkt_info1; | |
| u32 pkt_info2; | |
| u32 src_dst_tag; | |
| } __packed; | |
| /** | |
| * struct cppi5_host_desc_t - Host-mode packet and buffer descriptor definition | |
| * @hdr: Descriptor header | |
| * @next_desc: word 4/5: Linking word | |
| * @buf_ptr: word 6/7: Buffer pointer | |
| * @buf_info1: word 8: Buffer valid data length | |
| * @org_buf_len: word 9: Original buffer length | |
| * @org_buf_ptr: word 10/11: Original buffer pointer | |
| * @epib[0]: Extended Packet Info Data (optional, 4 words), and/or | |
| * Protocol Specific Data (optional, 0-128 bytes in | |
| * multiples of 4), and/or | |
| * Other Software Data (0-N bytes, optional) | |
| */ | |
| struct cppi5_host_desc_t { | |
| struct cppi5_desc_hdr_t hdr; | |
| u64 next_desc; | |
| u64 buf_ptr; | |
| u32 buf_info1; | |
| u32 org_buf_len; | |
| u64 org_buf_ptr; | |
| u32 epib[]; | |
| } __packed; | |
| #define CPPI5_DESC_MIN_ALIGN (16U) | |
| #define CPPI5_INFO0_HDESC_EPIB_SIZE (16U) | |
| #define CPPI5_INFO0_HDESC_PSDATA_MAX_SIZE (128U) | |
| #define CPPI5_INFO0_HDESC_TYPE_SHIFT (30U) | |
| #define CPPI5_INFO0_HDESC_TYPE_MASK GENMASK(31, 30) | |
| #define CPPI5_INFO0_DESC_TYPE_VAL_HOST (1U) | |
| #define CPPI5_INFO0_DESC_TYPE_VAL_MONO (2U) | |
| #define CPPI5_INFO0_DESC_TYPE_VAL_TR (3U) | |
| #define CPPI5_INFO0_HDESC_EPIB_PRESENT BIT(29) | |
| /* | |
| * Protocol Specific Words location: | |
| * 0 - located in the descriptor, | |
| * 1 = located in the SOP Buffer immediately prior to the data. | |
| */ | |
| #define CPPI5_INFO0_HDESC_PSINFO_LOCATION BIT(28) | |
| #define CPPI5_INFO0_HDESC_PSINFO_SIZE_SHIFT (22U) | |
| #define CPPI5_INFO0_HDESC_PSINFO_SIZE_MASK GENMASK(27, 22) | |
| #define CPPI5_INFO0_HDESC_PKTLEN_SHIFT (0) | |
| #define CPPI5_INFO0_HDESC_PKTLEN_MASK GENMASK(21, 0) | |
| #define CPPI5_INFO1_DESC_PKTERROR_SHIFT (28U) | |
| #define CPPI5_INFO1_DESC_PKTERROR_MASK GENMASK(31, 28) | |
| #define CPPI5_INFO1_HDESC_PSFLGS_SHIFT (24U) | |
| #define CPPI5_INFO1_HDESC_PSFLGS_MASK GENMASK(27, 24) | |
| #define CPPI5_INFO1_DESC_PKTID_SHIFT (14U) | |
| #define CPPI5_INFO1_DESC_PKTID_MASK GENMASK(23, 14) | |
| #define CPPI5_INFO1_DESC_FLOWID_SHIFT (0) | |
| #define CPPI5_INFO1_DESC_FLOWID_MASK GENMASK(13, 0) | |
| #define CPPI5_INFO1_DESC_FLOWID_DEFAULT CPPI5_INFO1_DESC_FLOWID_MASK | |
| #define CPPI5_INFO2_HDESC_PKTTYPE_SHIFT (27U) | |
| #define CPPI5_INFO2_HDESC_PKTTYPE_MASK GENMASK(31, 27) | |
| /* Return Policy: 0 - Entire packet 1 - Each buffer */ | |
| #define CPPI5_INFO2_HDESC_RETPOLICY BIT(18) | |
| /* | |
| * Early Return: | |
| * 0 = desc pointers should be returned after all reads have been completed | |
| * 1 = desc pointers should be returned immediately upon fetching | |
| * the descriptor and beginning to transfer data. | |
| */ | |
| #define CPPI5_INFO2_HDESC_EARLYRET BIT(17) | |
| /* | |
| * Return Push Policy: | |
| * 0 = Descriptor must be returned to tail of queue | |
| * 1 = Descriptor must be returned to head of queue | |
| */ | |
| #define CPPI5_INFO2_DESC_RETPUSHPOLICY BIT(16) | |
| #define CPPI5_INFO2_DESC_RETP_MASK GENMASK(18, 16) | |
| #define CPPI5_INFO2_DESC_RETQ_SHIFT (0) | |
| #define CPPI5_INFO2_DESC_RETQ_MASK GENMASK(15, 0) | |
| #define CPPI5_INFO3_DESC_SRCTAG_SHIFT (16U) | |
| #define CPPI5_INFO3_DESC_SRCTAG_MASK GENMASK(31, 16) | |
| #define CPPI5_INFO3_DESC_DSTTAG_SHIFT (0) | |
| #define CPPI5_INFO3_DESC_DSTTAG_MASK GENMASK(15, 0) | |
| #define CPPI5_BUFINFO1_HDESC_DATA_LEN_SHIFT (0) | |
| #define CPPI5_BUFINFO1_HDESC_DATA_LEN_MASK GENMASK(27, 0) | |
| #define CPPI5_OBUFINFO0_HDESC_BUF_LEN_SHIFT (0) | |
| #define CPPI5_OBUFINFO0_HDESC_BUF_LEN_MASK GENMASK(27, 0) | |
| /** | |
| * struct cppi5_desc_epib_t - Host Packet Descriptor Extended Packet Info Block | |
| * @timestamp: word 0: application specific timestamp | |
| * @sw_info0: word 1: Software Info 0 | |
| * @sw_info1: word 1: Software Info 1 | |
| * @sw_info2: word 1: Software Info 2 | |
| */ | |
| struct cppi5_desc_epib_t { | |
| u32 timestamp; /* w0: application specific timestamp */ | |
| u32 sw_info0; /* w1: Software Info 0 */ | |
| u32 sw_info1; /* w2: Software Info 1 */ | |
| u32 sw_info2; /* w3: Software Info 2 */ | |
| }; | |
| /** | |
| * struct cppi5_monolithic_desc_t - Monolithic-mode packet descriptor | |
| * @hdr: Descriptor header | |
| * @epib[0]: Extended Packet Info Data (optional, 4 words), and/or | |
| * Protocol Specific Data (optional, 0-128 bytes in | |
| * multiples of 4), and/or | |
| * Other Software Data (0-N bytes, optional) | |
| */ | |
| struct cppi5_monolithic_desc_t { | |
| struct cppi5_desc_hdr_t hdr; | |
| u32 epib[]; | |
| }; | |
| #define CPPI5_INFO2_MDESC_DATA_OFFSET_SHIFT (18U) | |
| #define CPPI5_INFO2_MDESC_DATA_OFFSET_MASK GENMASK(26, 18) | |
| /* | |
| * Reload Count: | |
| * 0 = Finish the packet and place the descriptor back on the return queue | |
| * 1-0x1ff = Vector to the Reload Index and resume processing | |
| * 0x1ff indicates perpetual loop, infinite reload until the channel is stopped | |
| */ | |
| #define CPPI5_INFO0_TRDESC_RLDCNT_SHIFT (20U) | |
| #define CPPI5_INFO0_TRDESC_RLDCNT_MASK GENMASK(28, 20) | |
| #define CPPI5_INFO0_TRDESC_RLDCNT_MAX (0x1ff) | |
| #define CPPI5_INFO0_TRDESC_RLDCNT_INFINITE CPPI5_INFO0_TRDESC_RLDCNT_MAX | |
| #define CPPI5_INFO0_TRDESC_RLDIDX_SHIFT (14U) | |
| #define CPPI5_INFO0_TRDESC_RLDIDX_MASK GENMASK(19, 14) | |
| #define CPPI5_INFO0_TRDESC_RLDIDX_MAX (0x3f) | |
| #define CPPI5_INFO0_TRDESC_LASTIDX_SHIFT (0) | |
| #define CPPI5_INFO0_TRDESC_LASTIDX_MASK GENMASK(13, 0) | |
| #define CPPI5_INFO1_TRDESC_RECSIZE_SHIFT (24U) | |
| #define CPPI5_INFO1_TRDESC_RECSIZE_MASK GENMASK(26, 24) | |
| #define CPPI5_INFO1_TRDESC_RECSIZE_VAL_16B (0) | |
| #define CPPI5_INFO1_TRDESC_RECSIZE_VAL_32B (1U) | |
| #define CPPI5_INFO1_TRDESC_RECSIZE_VAL_64B (2U) | |
| #define CPPI5_INFO1_TRDESC_RECSIZE_VAL_128B (3U) | |
| static inline void cppi5_desc_dump(void *desc, u32 size) | |
| { | |
| print_hex_dump(KERN_ERR, "dump udmap_desc: ", DUMP_PREFIX_NONE, | |
| 32, 4, desc, size, false); | |
| } | |
| #define CPPI5_TDCM_MARKER (0x1) | |
| /** | |
| * cppi5_desc_is_tdcm - check if the paddr indicates Teardown Complete Message | |
| * @paddr: Physical address of the packet popped from the ring | |
| * | |
| * Returns true if the address indicates TDCM | |
| */ | |
| static inline bool cppi5_desc_is_tdcm(dma_addr_t paddr) | |
| { | |
| return (paddr & CPPI5_TDCM_MARKER) ? true : false; | |
| } | |
| /** | |
| * cppi5_desc_get_type - get descriptor type | |
| * @desc_hdr: packet descriptor/TR header | |
| * | |
| * Returns descriptor type: | |
| * CPPI5_INFO0_DESC_TYPE_VAL_HOST | |
| * CPPI5_INFO0_DESC_TYPE_VAL_MONO | |
| * CPPI5_INFO0_DESC_TYPE_VAL_TR | |
| */ | |
| static inline u32 cppi5_desc_get_type(struct cppi5_desc_hdr_t *desc_hdr) | |
| { | |
| return (desc_hdr->pkt_info0 & CPPI5_INFO0_HDESC_TYPE_MASK) >> | |
| CPPI5_INFO0_HDESC_TYPE_SHIFT; | |
| } | |
| /** | |
| * cppi5_desc_get_errflags - get Error Flags from Desc | |
| * @desc_hdr: packet/TR descriptor header | |
| * | |
| * Returns Error Flags from Packet/TR Descriptor | |
| */ | |
| static inline u32 cppi5_desc_get_errflags(struct cppi5_desc_hdr_t *desc_hdr) | |
| { | |
| return (desc_hdr->pkt_info1 & CPPI5_INFO1_DESC_PKTERROR_MASK) >> | |
| CPPI5_INFO1_DESC_PKTERROR_SHIFT; | |
| } | |
| /** | |
| * cppi5_desc_get_pktids - get Packet and Flow ids from Desc | |
| * @desc_hdr: packet/TR descriptor header | |
| * @pkt_id: Packet ID | |
| * @flow_id: Flow ID | |
| * | |
| * Returns Packet and Flow ids from packet/TR descriptor | |
| */ | |
| static inline void cppi5_desc_get_pktids(struct cppi5_desc_hdr_t *desc_hdr, | |
| u32 *pkt_id, u32 *flow_id) | |
| { | |
| *pkt_id = (desc_hdr->pkt_info1 & CPPI5_INFO1_DESC_PKTID_MASK) >> | |
| CPPI5_INFO1_DESC_PKTID_SHIFT; | |
| *flow_id = (desc_hdr->pkt_info1 & CPPI5_INFO1_DESC_FLOWID_MASK) >> | |
| CPPI5_INFO1_DESC_FLOWID_SHIFT; | |
| } | |
| /** | |
| * cppi5_desc_set_pktids - set Packet and Flow ids in Desc | |
| * @desc_hdr: packet/TR descriptor header | |
| * @pkt_id: Packet ID | |
| * @flow_id: Flow ID | |
| */ | |
| static inline void cppi5_desc_set_pktids(struct cppi5_desc_hdr_t *desc_hdr, | |
| u32 pkt_id, u32 flow_id) | |
| { | |
| desc_hdr->pkt_info1 &= ~(CPPI5_INFO1_DESC_PKTID_MASK | | |
| CPPI5_INFO1_DESC_FLOWID_MASK); | |
| desc_hdr->pkt_info1 |= (pkt_id << CPPI5_INFO1_DESC_PKTID_SHIFT) & | |
| CPPI5_INFO1_DESC_PKTID_MASK; | |
| desc_hdr->pkt_info1 |= (flow_id << CPPI5_INFO1_DESC_FLOWID_SHIFT) & | |
| CPPI5_INFO1_DESC_FLOWID_MASK; | |
| } | |
| /** | |
| * cppi5_desc_set_retpolicy - set Packet Return Policy in Desc | |
| * @desc_hdr: packet/TR descriptor header | |
| * @flags: fags, supported values | |
| * CPPI5_INFO2_HDESC_RETPOLICY | |
| * CPPI5_INFO2_HDESC_EARLYRET | |
| * CPPI5_INFO2_DESC_RETPUSHPOLICY | |
| * @return_ring_id: Packet Return Queue/Ring id, value 0xFFFF reserved | |
| */ | |
| static inline void cppi5_desc_set_retpolicy(struct cppi5_desc_hdr_t *desc_hdr, | |
| u32 flags, u32 return_ring_id) | |
| { | |
| desc_hdr->pkt_info2 &= ~(CPPI5_INFO2_DESC_RETP_MASK | | |
| CPPI5_INFO2_DESC_RETQ_MASK); | |
| desc_hdr->pkt_info2 |= flags & CPPI5_INFO2_DESC_RETP_MASK; | |
| desc_hdr->pkt_info2 |= return_ring_id & CPPI5_INFO2_DESC_RETQ_MASK; | |
| } | |
| /** | |
| * cppi5_desc_get_tags_ids - get Packet Src/Dst Tags from Desc | |
| * @desc_hdr: packet/TR descriptor header | |
| * @src_tag_id: Source Tag | |
| * @dst_tag_id: Dest Tag | |
| * | |
| * Returns Packet Src/Dst Tags from packet/TR descriptor | |
| */ | |
| static inline void cppi5_desc_get_tags_ids(struct cppi5_desc_hdr_t *desc_hdr, | |
| u32 *src_tag_id, u32 *dst_tag_id) | |
| { | |
| if (src_tag_id) | |
| *src_tag_id = (desc_hdr->src_dst_tag & | |
| CPPI5_INFO3_DESC_SRCTAG_MASK) >> | |
| CPPI5_INFO3_DESC_SRCTAG_SHIFT; | |
| if (dst_tag_id) | |
| *dst_tag_id = desc_hdr->src_dst_tag & | |
| CPPI5_INFO3_DESC_DSTTAG_MASK; | |
| } | |
| /** | |
| * cppi5_desc_set_tags_ids - set Packet Src/Dst Tags in HDesc | |
| * @desc_hdr: packet/TR descriptor header | |
| * @src_tag_id: Source Tag | |
| * @dst_tag_id: Dest Tag | |
| * | |
| * Returns Packet Src/Dst Tags from packet/TR descriptor | |
| */ | |
| static inline void cppi5_desc_set_tags_ids(struct cppi5_desc_hdr_t *desc_hdr, | |
| u32 src_tag_id, u32 dst_tag_id) | |
| { | |
| desc_hdr->src_dst_tag = (src_tag_id << CPPI5_INFO3_DESC_SRCTAG_SHIFT) & | |
| CPPI5_INFO3_DESC_SRCTAG_MASK; | |
| desc_hdr->src_dst_tag |= dst_tag_id & CPPI5_INFO3_DESC_DSTTAG_MASK; | |
| } | |
| /** | |
| * cppi5_hdesc_calc_size - Calculate Host Packet Descriptor size | |
| * @epib: is EPIB present | |
| * @psdata_size: PSDATA size | |
| * @sw_data_size: SWDATA size | |
| * | |
| * Returns required Host Packet Descriptor size | |
| * 0 - if PSDATA > CPPI5_INFO0_HDESC_PSDATA_MAX_SIZE | |
| */ | |
| static inline u32 cppi5_hdesc_calc_size(bool epib, u32 psdata_size, | |
| u32 sw_data_size) | |
| { | |
| u32 desc_size; | |
| if (psdata_size > CPPI5_INFO0_HDESC_PSDATA_MAX_SIZE) | |
| return 0; | |
| desc_size = sizeof(struct cppi5_host_desc_t) + psdata_size + | |
| sw_data_size; | |
| if (epib) | |
| desc_size += CPPI5_INFO0_HDESC_EPIB_SIZE; | |
| return ALIGN(desc_size, CPPI5_DESC_MIN_ALIGN); | |
| } | |
| /** | |
| * cppi5_hdesc_init - Init Host Packet Descriptor size | |
| * @desc: Host packet descriptor | |
| * @flags: supported values | |
| * CPPI5_INFO0_HDESC_EPIB_PRESENT | |
| * CPPI5_INFO0_HDESC_PSINFO_LOCATION | |
| * @psdata_size: PSDATA size | |
| * | |
| * Returns required Host Packet Descriptor size | |
| * 0 - if PSDATA > CPPI5_INFO0_HDESC_PSDATA_MAX_SIZE | |
| */ | |
| static inline void cppi5_hdesc_init(struct cppi5_host_desc_t *desc, u32 flags, | |
| u32 psdata_size) | |
| { | |
| desc->hdr.pkt_info0 = (CPPI5_INFO0_DESC_TYPE_VAL_HOST << | |
| CPPI5_INFO0_HDESC_TYPE_SHIFT) | (flags); | |
| desc->hdr.pkt_info0 |= ((psdata_size >> 2) << | |
| CPPI5_INFO0_HDESC_PSINFO_SIZE_SHIFT) & | |
| CPPI5_INFO0_HDESC_PSINFO_SIZE_MASK; | |
| desc->next_desc = 0; | |
| } | |
| /** | |
| * cppi5_hdesc_update_flags - Replace descriptor flags | |
| * @desc: Host packet descriptor | |
| * @flags: supported values | |
| * CPPI5_INFO0_HDESC_EPIB_PRESENT | |
| * CPPI5_INFO0_HDESC_PSINFO_LOCATION | |
| */ | |
| static inline void cppi5_hdesc_update_flags(struct cppi5_host_desc_t *desc, | |
| u32 flags) | |
| { | |
| desc->hdr.pkt_info0 &= ~(CPPI5_INFO0_HDESC_EPIB_PRESENT | | |
| CPPI5_INFO0_HDESC_PSINFO_LOCATION); | |
| desc->hdr.pkt_info0 |= flags; | |
| } | |
| /** | |
| * cppi5_hdesc_update_psdata_size - Replace PSdata size | |
| * @desc: Host packet descriptor | |
| * @psdata_size: PSDATA size | |
| */ | |
| static inline void | |
| cppi5_hdesc_update_psdata_size(struct cppi5_host_desc_t *desc, u32 psdata_size) | |
| { | |
| desc->hdr.pkt_info0 &= ~CPPI5_INFO0_HDESC_PSINFO_SIZE_MASK; | |
| desc->hdr.pkt_info0 |= ((psdata_size >> 2) << | |
| CPPI5_INFO0_HDESC_PSINFO_SIZE_SHIFT) & | |
| CPPI5_INFO0_HDESC_PSINFO_SIZE_MASK; | |
| } | |
| /** | |
| * cppi5_hdesc_get_psdata_size - get PSdata size in bytes | |
| * @desc: Host packet descriptor | |
| */ | |
| static inline u32 cppi5_hdesc_get_psdata_size(struct cppi5_host_desc_t *desc) | |
| { | |
| u32 psdata_size = 0; | |
| if (!(desc->hdr.pkt_info0 & CPPI5_INFO0_HDESC_PSINFO_LOCATION)) | |
| psdata_size = (desc->hdr.pkt_info0 & | |
| CPPI5_INFO0_HDESC_PSINFO_SIZE_MASK) >> | |
| CPPI5_INFO0_HDESC_PSINFO_SIZE_SHIFT; | |
| return (psdata_size << 2); | |
| } | |
| /** | |
| * cppi5_hdesc_get_pktlen - get Packet Length from HDesc | |
| * @desc: Host packet descriptor | |
| * | |
| * Returns Packet Length from Host Packet Descriptor | |
| */ | |
| static inline u32 cppi5_hdesc_get_pktlen(struct cppi5_host_desc_t *desc) | |
| { | |
| return (desc->hdr.pkt_info0 & CPPI5_INFO0_HDESC_PKTLEN_MASK); | |
| } | |
| /** | |
| * cppi5_hdesc_set_pktlen - set Packet Length in HDesc | |
| * @desc: Host packet descriptor | |
| */ | |
| static inline void cppi5_hdesc_set_pktlen(struct cppi5_host_desc_t *desc, | |
| u32 pkt_len) | |
| { | |
| desc->hdr.pkt_info0 &= ~CPPI5_INFO0_HDESC_PKTLEN_MASK; | |
| desc->hdr.pkt_info0 |= (pkt_len & CPPI5_INFO0_HDESC_PKTLEN_MASK); | |
| } | |
| /** | |
| * cppi5_hdesc_get_psflags - get Protocol Specific Flags from HDesc | |
| * @desc: Host packet descriptor | |
| * | |
| * Returns Protocol Specific Flags from Host Packet Descriptor | |
| */ | |
| static inline u32 cppi5_hdesc_get_psflags(struct cppi5_host_desc_t *desc) | |
| { | |
| return (desc->hdr.pkt_info1 & CPPI5_INFO1_HDESC_PSFLGS_MASK) >> | |
| CPPI5_INFO1_HDESC_PSFLGS_SHIFT; | |
| } | |
| /** | |
| * cppi5_hdesc_set_psflags - set Protocol Specific Flags in HDesc | |
| * @desc: Host packet descriptor | |
| */ | |
| static inline void cppi5_hdesc_set_psflags(struct cppi5_host_desc_t *desc, | |
| u32 ps_flags) | |
| { | |
| desc->hdr.pkt_info1 &= ~CPPI5_INFO1_HDESC_PSFLGS_MASK; | |
| desc->hdr.pkt_info1 |= (ps_flags << | |
| CPPI5_INFO1_HDESC_PSFLGS_SHIFT) & | |
| CPPI5_INFO1_HDESC_PSFLGS_MASK; | |
| } | |
| /** | |
| * cppi5_hdesc_get_errflags - get Packet Type from HDesc | |
| * @desc: Host packet descriptor | |
| */ | |
| static inline u32 cppi5_hdesc_get_pkttype(struct cppi5_host_desc_t *desc) | |
| { | |
| return (desc->hdr.pkt_info2 & CPPI5_INFO2_HDESC_PKTTYPE_MASK) >> | |
| CPPI5_INFO2_HDESC_PKTTYPE_SHIFT; | |
| } | |
| /** | |
| * cppi5_hdesc_get_errflags - set Packet Type in HDesc | |
| * @desc: Host packet descriptor | |
| * @pkt_type: Packet Type | |
| */ | |
| static inline void cppi5_hdesc_set_pkttype(struct cppi5_host_desc_t *desc, | |
| u32 pkt_type) | |
| { | |
| desc->hdr.pkt_info2 &= ~CPPI5_INFO2_HDESC_PKTTYPE_MASK; | |
| desc->hdr.pkt_info2 |= | |
| (pkt_type << CPPI5_INFO2_HDESC_PKTTYPE_SHIFT) & | |
| CPPI5_INFO2_HDESC_PKTTYPE_MASK; | |
| } | |
| /** | |
| * cppi5_hdesc_attach_buf - attach buffer to HDesc | |
| * @desc: Host packet descriptor | |
| * @buf: Buffer physical address | |
| * @buf_data_len: Buffer length | |
| * @obuf: Original Buffer physical address | |
| * @obuf_len: Original Buffer length | |
| * | |
| * Attaches buffer to Host Packet Descriptor | |
| */ | |
| static inline void cppi5_hdesc_attach_buf(struct cppi5_host_desc_t *desc, | |
| dma_addr_t buf, u32 buf_data_len, | |
| dma_addr_t obuf, u32 obuf_len) | |
| { | |
| desc->buf_ptr = buf; | |
| desc->buf_info1 = buf_data_len & CPPI5_BUFINFO1_HDESC_DATA_LEN_MASK; | |
| desc->org_buf_ptr = obuf; | |
| desc->org_buf_len = obuf_len & CPPI5_OBUFINFO0_HDESC_BUF_LEN_MASK; | |
| } | |
| static inline void cppi5_hdesc_get_obuf(struct cppi5_host_desc_t *desc, | |
| dma_addr_t *obuf, u32 *obuf_len) | |
| { | |
| *obuf = desc->org_buf_ptr; | |
| *obuf_len = desc->org_buf_len & CPPI5_OBUFINFO0_HDESC_BUF_LEN_MASK; | |
| } | |
| static inline void cppi5_hdesc_reset_to_original(struct cppi5_host_desc_t *desc) | |
| { | |
| desc->buf_ptr = desc->org_buf_ptr; | |
| desc->buf_info1 = desc->org_buf_len; | |
| } | |
| /** | |
| * cppi5_hdesc_link_hbdesc - link Host Buffer Descriptor to HDesc | |
| * @desc: Host Packet Descriptor | |
| * @buf_desc: Host Buffer Descriptor physical address | |
| * | |
| * add and link Host Buffer Descriptor to HDesc | |
| */ | |
| static inline void cppi5_hdesc_link_hbdesc(struct cppi5_host_desc_t *desc, | |
| dma_addr_t hbuf_desc) | |
| { | |
| desc->next_desc = hbuf_desc; | |
| } | |
| static inline dma_addr_t | |
| cppi5_hdesc_get_next_hbdesc(struct cppi5_host_desc_t *desc) | |
| { | |
| return (dma_addr_t)desc->next_desc; | |
| } | |
| static inline void cppi5_hdesc_reset_hbdesc(struct cppi5_host_desc_t *desc) | |
| { | |
| desc->hdr = (struct cppi5_desc_hdr_t) { 0 }; | |
| desc->next_desc = 0; | |
| } | |
| /** | |
| * cppi5_hdesc_epib_present - check if EPIB present | |
| * @desc_hdr: packet descriptor/TR header | |
| * | |
| * Returns true if EPIB present in the packet | |
| */ | |
| static inline bool cppi5_hdesc_epib_present(struct cppi5_desc_hdr_t *desc_hdr) | |
| { | |
| return !!(desc_hdr->pkt_info0 & CPPI5_INFO0_HDESC_EPIB_PRESENT); | |
| } | |
| /** | |
| * cppi5_hdesc_get_psdata - Get pointer on PSDATA | |
| * @desc: Host packet descriptor | |
| * | |
| * Returns pointer on PSDATA in HDesc. | |
| * NULL - if ps_data placed at the start of data buffer. | |
| */ | |
| static inline void *cppi5_hdesc_get_psdata(struct cppi5_host_desc_t *desc) | |
| { | |
| u32 psdata_size; | |
| void *psdata; | |
| if (desc->hdr.pkt_info0 & CPPI5_INFO0_HDESC_PSINFO_LOCATION) | |
| return NULL; | |
| psdata_size = (desc->hdr.pkt_info0 & | |
| CPPI5_INFO0_HDESC_PSINFO_SIZE_MASK) >> | |
| CPPI5_INFO0_HDESC_PSINFO_SIZE_SHIFT; | |
| if (!psdata_size) | |
| return NULL; | |
| psdata = &desc->epib; | |
| if (cppi5_hdesc_epib_present(&desc->hdr)) | |
| psdata += CPPI5_INFO0_HDESC_EPIB_SIZE; | |
| return psdata; | |
| } | |
| /** | |
| * cppi5_hdesc_get_swdata - Get pointer on swdata | |
| * @desc: Host packet descriptor | |
| * | |
| * Returns pointer on SWDATA in HDesc. | |
| * NOTE. It's caller responsibility to be sure hdesc actually has swdata. | |
| */ | |
| static inline void *cppi5_hdesc_get_swdata(struct cppi5_host_desc_t *desc) | |
| { | |
| u32 psdata_size = 0; | |
| void *swdata; | |
| if (!(desc->hdr.pkt_info0 & CPPI5_INFO0_HDESC_PSINFO_LOCATION)) | |
| psdata_size = (desc->hdr.pkt_info0 & | |
| CPPI5_INFO0_HDESC_PSINFO_SIZE_MASK) >> | |
| CPPI5_INFO0_HDESC_PSINFO_SIZE_SHIFT; | |
| swdata = &desc->epib; | |
| if (cppi5_hdesc_epib_present(&desc->hdr)) | |
| swdata += CPPI5_INFO0_HDESC_EPIB_SIZE; | |
| swdata += (psdata_size << 2); | |
| return swdata; | |
| } | |
| /* ================================== TR ================================== */ | |
| #define CPPI5_TR_TYPE_SHIFT (0U) | |
| #define CPPI5_TR_TYPE_MASK GENMASK(3, 0) | |
| #define CPPI5_TR_STATIC BIT(4) | |
| #define CPPI5_TR_WAIT BIT(5) | |
| #define CPPI5_TR_EVENT_SIZE_SHIFT (6U) | |
| #define CPPI5_TR_EVENT_SIZE_MASK GENMASK(7, 6) | |
| #define CPPI5_TR_TRIGGER0_SHIFT (8U) | |
| #define CPPI5_TR_TRIGGER0_MASK GENMASK(9, 8) | |
| #define CPPI5_TR_TRIGGER0_TYPE_SHIFT (10U) | |
| #define CPPI5_TR_TRIGGER0_TYPE_MASK GENMASK(11, 10) | |
| #define CPPI5_TR_TRIGGER1_SHIFT (12U) | |
| #define CPPI5_TR_TRIGGER1_MASK GENMASK(13, 12) | |
| #define CPPI5_TR_TRIGGER1_TYPE_SHIFT (14U) | |
| #define CPPI5_TR_TRIGGER1_TYPE_MASK GENMASK(15, 14) | |
| #define CPPI5_TR_CMD_ID_SHIFT (16U) | |
| #define CPPI5_TR_CMD_ID_MASK GENMASK(23, 16) | |
| #define CPPI5_TR_CSF_FLAGS_SHIFT (24U) | |
| #define CPPI5_TR_CSF_FLAGS_MASK GENMASK(31, 24) | |
| #define CPPI5_TR_CSF_SA_INDIRECT BIT(0) | |
| #define CPPI5_TR_CSF_DA_INDIRECT BIT(1) | |
| #define CPPI5_TR_CSF_SUPR_EVT BIT(2) | |
| #define CPPI5_TR_CSF_EOL_ADV_SHIFT (4U) | |
| #define CPPI5_TR_CSF_EOL_ADV_MASK GENMASK(6, 4) | |
| #define CPPI5_TR_CSF_EOP BIT(7) | |
| /** | |
| * enum cppi5_tr_types - TR types | |
| * @CPPI5_TR_TYPE0: One dimensional data move | |
| * @CPPI5_TR_TYPE1: Two dimensional data move | |
| * @CPPI5_TR_TYPE2: Three dimensional data move | |
| * @CPPI5_TR_TYPE3: Four dimensional data move | |
| * @CPPI5_TR_TYPE4: Four dimensional data move with data formatting | |
| * @CPPI5_TR_TYPE5: Four dimensional Cache Warm | |
| * @CPPI5_TR_TYPE8: Four Dimensional Block Move | |
| * @CPPI5_TR_TYPE9: Four Dimensional Block Move with Repacking | |
| * @CPPI5_TR_TYPE10: Two Dimensional Block Move | |
| * @CPPI5_TR_TYPE11: Two Dimensional Block Move with Repacking | |
| * @CPPI5_TR_TYPE15: Four Dimensional Block Move with Repacking and | |
| * Indirection | |
| */ | |
| enum cppi5_tr_types { | |
| CPPI5_TR_TYPE0 = 0, | |
| CPPI5_TR_TYPE1, | |
| CPPI5_TR_TYPE2, | |
| CPPI5_TR_TYPE3, | |
| CPPI5_TR_TYPE4, | |
| CPPI5_TR_TYPE5, | |
| /* type6-7: Reserved */ | |
| CPPI5_TR_TYPE8 = 8, | |
| CPPI5_TR_TYPE9, | |
| CPPI5_TR_TYPE10, | |
| CPPI5_TR_TYPE11, | |
| /* type12-14: Reserved */ | |
| CPPI5_TR_TYPE15 = 15, | |
| CPPI5_TR_TYPE_MAX | |
| }; | |
| /** | |
| * enum cppi5_tr_event_size - TR Flags EVENT_SIZE field specifies when an event | |
| * is generated for each TR. | |
| * @CPPI5_TR_EVENT_SIZE_COMPLETION: When TR is complete and all status for | |
| * the TR has been received | |
| * @CPPI5_TR_EVENT_SIZE_ICNT1_DEC: Type 0: when the last data transaction | |
| * is sent for the TR | |
| * Type 1-11: when ICNT1 is decremented | |
| * @CPPI5_TR_EVENT_SIZE_ICNT2_DEC: Type 0-1,10-11: when the last data | |
| * transaction is sent for the TR | |
| * All other types: when ICNT2 is | |
| * decremented | |
| * @CPPI5_TR_EVENT_SIZE_ICNT3_DEC: Type 0-2,10-11: when the last data | |
| * transaction is sent for the TR | |
| * All other types: when ICNT3 is | |
| * decremented | |
| */ | |
| enum cppi5_tr_event_size { | |
| CPPI5_TR_EVENT_SIZE_COMPLETION, | |
| CPPI5_TR_EVENT_SIZE_ICNT1_DEC, | |
| CPPI5_TR_EVENT_SIZE_ICNT2_DEC, | |
| CPPI5_TR_EVENT_SIZE_ICNT3_DEC, | |
| CPPI5_TR_EVENT_SIZE_MAX | |
| }; | |
| /** | |
| * enum cppi5_tr_trigger - TR Flags TRIGGERx field specifies the type of trigger | |
| * used to enable the TR to transfer data as specified | |
| * by TRIGGERx_TYPE field. | |
| * @CPPI5_TR_TRIGGER_NONE: No trigger | |
| * @CPPI5_TR_TRIGGER_GLOBAL0: Global trigger 0 | |
| * @CPPI5_TR_TRIGGER_GLOBAL1: Global trigger 1 | |
| * @CPPI5_TR_TRIGGER_LOCAL_EVENT: Local Event | |
| */ | |
| enum cppi5_tr_trigger { | |
| CPPI5_TR_TRIGGER_NONE, | |
| CPPI5_TR_TRIGGER_GLOBAL0, | |
| CPPI5_TR_TRIGGER_GLOBAL1, | |
| CPPI5_TR_TRIGGER_LOCAL_EVENT, | |
| CPPI5_TR_TRIGGER_MAX | |
| }; | |
| /** | |
| * enum cppi5_tr_trigger_type - TR Flags TRIGGERx_TYPE field specifies the type | |
| * of data transfer that will be enabled by | |
| * receiving a trigger as specified by TRIGGERx. | |
| * @CPPI5_TR_TRIGGER_TYPE_ICNT1_DEC: The second inner most loop (ICNT1) will | |
| * be decremented by 1 | |
| * @CPPI5_TR_TRIGGER_TYPE_ICNT2_DEC: The third inner most loop (ICNT2) will | |
| * be decremented by 1 | |
| * @CPPI5_TR_TRIGGER_TYPE_ICNT3_DEC: The outer most loop (ICNT3) will be | |
| * decremented by 1 | |
| * @CPPI5_TR_TRIGGER_TYPE_ALL: The entire TR will be allowed to | |
| * complete | |
| */ | |
| enum cppi5_tr_trigger_type { | |
| CPPI5_TR_TRIGGER_TYPE_ICNT1_DEC, | |
| CPPI5_TR_TRIGGER_TYPE_ICNT2_DEC, | |
| CPPI5_TR_TRIGGER_TYPE_ICNT3_DEC, | |
| CPPI5_TR_TRIGGER_TYPE_ALL, | |
| CPPI5_TR_TRIGGER_TYPE_MAX | |
| }; | |
| typedef u32 cppi5_tr_flags_t; | |
| /** | |
| * struct cppi5_tr_type0_t - Type 0 (One dimensional data move) TR (16 byte) | |
| * @flags: TR flags (type, triggers, event, configuration) | |
| * @icnt0: Total loop iteration count for level 0 (innermost) | |
| * @_reserved: Not used | |
| * @addr: Starting address for the source data or destination data | |
| */ | |
| struct cppi5_tr_type0_t { | |
| cppi5_tr_flags_t flags; | |
| u16 icnt0; | |
| u16 _reserved; | |
| u64 addr; | |
| } __aligned(16) __packed; | |
| /** | |
| * struct cppi5_tr_type1_t - Type 1 (Two dimensional data move) TR (32 byte) | |
| * @flags: TR flags (type, triggers, event, configuration) | |
| * @icnt0: Total loop iteration count for level 0 (innermost) | |
| * @icnt1: Total loop iteration count for level 1 | |
| * @addr: Starting address for the source data or destination data | |
| * @dim1: Signed dimension for loop level 1 | |
| */ | |
| struct cppi5_tr_type1_t { | |
| cppi5_tr_flags_t flags; | |
| u16 icnt0; | |
| u16 icnt1; | |
| u64 addr; | |
| s32 dim1; | |
| } __aligned(32) __packed; | |
| /** | |
| * struct cppi5_tr_type2_t - Type 2 (Three dimensional data move) TR (32 byte) | |
| * @flags: TR flags (type, triggers, event, configuration) | |
| * @icnt0: Total loop iteration count for level 0 (innermost) | |
| * @icnt1: Total loop iteration count for level 1 | |
| * @addr: Starting address for the source data or destination data | |
| * @dim1: Signed dimension for loop level 1 | |
| * @icnt2: Total loop iteration count for level 2 | |
| * @_reserved: Not used | |
| * @dim2: Signed dimension for loop level 2 | |
| */ | |
| struct cppi5_tr_type2_t { | |
| cppi5_tr_flags_t flags; | |
| u16 icnt0; | |
| u16 icnt1; | |
| u64 addr; | |
| s32 dim1; | |
| u16 icnt2; | |
| u16 _reserved; | |
| s32 dim2; | |
| } __aligned(32) __packed; | |
| /** | |
| * struct cppi5_tr_type3_t - Type 3 (Four dimensional data move) TR (32 byte) | |
| * @flags: TR flags (type, triggers, event, configuration) | |
| * @icnt0: Total loop iteration count for level 0 (innermost) | |
| * @icnt1: Total loop iteration count for level 1 | |
| * @addr: Starting address for the source data or destination data | |
| * @dim1: Signed dimension for loop level 1 | |
| * @icnt2: Total loop iteration count for level 2 | |
| * @icnt3: Total loop iteration count for level 3 (outermost) | |
| * @dim2: Signed dimension for loop level 2 | |
| * @dim3: Signed dimension for loop level 3 | |
| */ | |
| struct cppi5_tr_type3_t { | |
| cppi5_tr_flags_t flags; | |
| u16 icnt0; | |
| u16 icnt1; | |
| u64 addr; | |
| s32 dim1; | |
| u16 icnt2; | |
| u16 icnt3; | |
| s32 dim2; | |
| s32 dim3; | |
| } __aligned(32) __packed; | |
| /** | |
| * struct cppi5_tr_type15_t - Type 15 (Four Dimensional Block Copy with | |
| * Repacking and Indirection Support) TR (64 byte) | |
| * @flags: TR flags (type, triggers, event, configuration) | |
| * @icnt0: Total loop iteration count for level 0 (innermost) for | |
| * source | |
| * @icnt1: Total loop iteration count for level 1 for source | |
| * @addr: Starting address for the source data | |
| * @dim1: Signed dimension for loop level 1 for source | |
| * @icnt2: Total loop iteration count for level 2 for source | |
| * @icnt3: Total loop iteration count for level 3 (outermost) for | |
| * source | |
| * @dim2: Signed dimension for loop level 2 for source | |
| * @dim3: Signed dimension for loop level 3 for source | |
| * @_reserved: Not used | |
| * @ddim1: Signed dimension for loop level 1 for destination | |
| * @daddr: Starting address for the destination data | |
| * @ddim2: Signed dimension for loop level 2 for destination | |
| * @ddim3: Signed dimension for loop level 3 for destination | |
| * @dicnt0: Total loop iteration count for level 0 (innermost) for | |
| * destination | |
| * @dicnt1: Total loop iteration count for level 1 for destination | |
| * @dicnt2: Total loop iteration count for level 2 for destination | |
| * @sicnt3: Total loop iteration count for level 3 (outermost) for | |
| * destination | |
| */ | |
| struct cppi5_tr_type15_t { | |
| cppi5_tr_flags_t flags; | |
| u16 icnt0; | |
| u16 icnt1; | |
| u64 addr; | |
| s32 dim1; | |
| u16 icnt2; | |
| u16 icnt3; | |
| s32 dim2; | |
| s32 dim3; | |
| u32 _reserved; | |
| s32 ddim1; | |
| u64 daddr; | |
| s32 ddim2; | |
| s32 ddim3; | |
| u16 dicnt0; | |
| u16 dicnt1; | |
| u16 dicnt2; | |
| u16 dicnt3; | |
| } __aligned(64) __packed; | |
| /** | |
| * struct cppi5_tr_resp_t - TR response record | |
| * @status: Status type and info | |
| * @_reserved: Not used | |
| * @cmd_id: Command ID for the TR for TR identification | |
| * @flags: Configuration Specific Flags | |
| */ | |
| struct cppi5_tr_resp_t { | |
| u8 status; | |
| u8 _reserved; | |
| u8 cmd_id; | |
| u8 flags; | |
| } __packed; | |
| #define CPPI5_TR_RESPONSE_STATUS_TYPE_SHIFT (0U) | |
| #define CPPI5_TR_RESPONSE_STATUS_TYPE_MASK GENMASK(3, 0) | |
| #define CPPI5_TR_RESPONSE_STATUS_INFO_SHIFT (4U) | |
| #define CPPI5_TR_RESPONSE_STATUS_INFO_MASK GENMASK(7, 4) | |
| #define CPPI5_TR_RESPONSE_CMDID_SHIFT (16U) | |
| #define CPPI5_TR_RESPONSE_CMDID_MASK GENMASK(23, 16) | |
| #define CPPI5_TR_RESPONSE_CFG_SPECIFIC_SHIFT (24U) | |
| #define CPPI5_TR_RESPONSE_CFG_SPECIFIC_MASK GENMASK(31, 24) | |
| /** | |
| * enum cppi5_tr_resp_status_type - TR Response Status Type field is used to | |
| * determine what type of status is being | |
| * returned. | |
| * @CPPI5_TR_RESPONSE_STATUS_NONE: No error, completion: completed | |
| * @CPPI5_TR_RESPONSE_STATUS_TRANSFER_ERR: Transfer Error, completion: none | |
| * or partially completed | |
| * @CPPI5_TR_RESPONSE_STATUS_ABORTED_ERR: Aborted Error, completion: none | |
| * or partially completed | |
| * @CPPI5_TR_RESPONSE_STATUS_SUBMISSION_ERR: Submission Error, completion: | |
| * none | |
| * @CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_ERR: Unsupported Error, completion: | |
| * none | |
| * @CPPI5_TR_RESPONSE_STATUS_TRANSFER_EXCEPTION: Transfer Exception, completion: | |
| * partially completed | |
| * @CPPI5_TR_RESPONSE_STATUS__TEARDOWN_FLUSH: Teardown Flush, completion: none | |
| */ | |
| enum cppi5_tr_resp_status_type { | |
| CPPI5_TR_RESPONSE_STATUS_NONE, | |
| CPPI5_TR_RESPONSE_STATUS_TRANSFER_ERR, | |
| CPPI5_TR_RESPONSE_STATUS_ABORTED_ERR, | |
| CPPI5_TR_RESPONSE_STATUS_SUBMISSION_ERR, | |
| CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_ERR, | |
| CPPI5_TR_RESPONSE_STATUS_TRANSFER_EXCEPTION, | |
| CPPI5_TR_RESPONSE_STATUS__TEARDOWN_FLUSH, | |
| CPPI5_TR_RESPONSE_STATUS_MAX | |
| }; | |
| /** | |
| * enum cppi5_tr_resp_status_submission - TR Response Status field values which | |
| * corresponds Submission Error | |
| * @CPPI5_TR_RESPONSE_STATUS_SUBMISSION_ICNT0: ICNT0 was 0 | |
| * @CPPI5_TR_RESPONSE_STATUS_SUBMISSION_FIFO_FULL: Channel FIFO was full when TR | |
| * received | |
| * @CPPI5_TR_RESPONSE_STATUS_SUBMISSION_OWN: Channel is not owned by the | |
| * submitter | |
| */ | |
| enum cppi5_tr_resp_status_submission { | |
| CPPI5_TR_RESPONSE_STATUS_SUBMISSION_ICNT0, | |
| CPPI5_TR_RESPONSE_STATUS_SUBMISSION_FIFO_FULL, | |
| CPPI5_TR_RESPONSE_STATUS_SUBMISSION_OWN, | |
| CPPI5_TR_RESPONSE_STATUS_SUBMISSION_MAX | |
| }; | |
| /** | |
| * enum cppi5_tr_resp_status_unsupported - TR Response Status field values which | |
| * corresponds Unsupported Error | |
| * @CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_TR_TYPE: TR Type not supported | |
| * @CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_STATIC: STATIC not supported | |
| * @CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_EOL: EOL not supported | |
| * @CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_CFG_SPECIFIC: CONFIGURATION SPECIFIC | |
| * not supported | |
| * @CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_AMODE: AMODE not supported | |
| * @CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_ELTYPE: ELTYPE not supported | |
| * @CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_DFMT: DFMT not supported | |
| * @CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_SECTR: SECTR not supported | |
| * @CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_AMODE_SPECIFIC: AMODE SPECIFIC field | |
| * not supported | |
| */ | |
| enum cppi5_tr_resp_status_unsupported { | |
| CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_TR_TYPE, | |
| CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_STATIC, | |
| CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_EOL, | |
| CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_CFG_SPECIFIC, | |
| CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_AMODE, | |
| CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_ELTYPE, | |
| CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_DFMT, | |
| CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_SECTR, | |
| CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_AMODE_SPECIFIC, | |
| CPPI5_TR_RESPONSE_STATUS_UNSUPPORTED_MAX | |
| }; | |
| /** | |
| * cppi5_trdesc_calc_size - Calculate TR Descriptor size | |
| * @tr_count: number of TR records | |
| * @tr_size: Nominal size of TR record (max) [16, 32, 64, 128] | |
| * | |
| * Returns required TR Descriptor size | |
| */ | |
| static inline size_t cppi5_trdesc_calc_size(u32 tr_count, u32 tr_size) | |
| { | |
| /* | |
| * The Size of a TR descriptor is: | |
| * 1 x tr_size : the first 16 bytes is used by the packet info block + | |
| * tr_count x tr_size : Transfer Request Records + | |
| * tr_count x sizeof(struct cppi5_tr_resp_t) : Transfer Response Records | |
| */ | |
| return tr_size * (tr_count + 1) + | |
| sizeof(struct cppi5_tr_resp_t) * tr_count; | |
| } | |
| /** | |
| * cppi5_trdesc_init - Init TR Descriptor | |
| * @desc: TR Descriptor | |
| * @tr_count: number of TR records | |
| * @tr_size: Nominal size of TR record (max) [16, 32, 64, 128] | |
| * @reload_idx: Absolute index to jump to on the 2nd and following passes | |
| * through the TR packet. | |
| * @reload_count: Number of times to jump from last entry to reload_idx. 0x1ff | |
| * indicates infinite looping. | |
| * | |
| * Init TR Descriptor | |
| */ | |
| static inline void cppi5_trdesc_init(struct cppi5_desc_hdr_t *desc_hdr, | |
| u32 tr_count, u32 tr_size, u32 reload_idx, | |
| u32 reload_count) | |
| { | |
| desc_hdr->pkt_info0 = CPPI5_INFO0_DESC_TYPE_VAL_TR << | |
| CPPI5_INFO0_HDESC_TYPE_SHIFT; | |
| desc_hdr->pkt_info0 |= | |
| (reload_count << CPPI5_INFO0_TRDESC_RLDCNT_SHIFT) & | |
| CPPI5_INFO0_TRDESC_RLDCNT_MASK; | |
| desc_hdr->pkt_info0 |= | |
| (reload_idx << CPPI5_INFO0_TRDESC_RLDIDX_SHIFT) & | |
| CPPI5_INFO0_TRDESC_RLDIDX_MASK; | |
| desc_hdr->pkt_info0 |= (tr_count - 1) & CPPI5_INFO0_TRDESC_LASTIDX_MASK; | |
| desc_hdr->pkt_info1 |= ((ffs(tr_size >> 4) - 1) << | |
| CPPI5_INFO1_TRDESC_RECSIZE_SHIFT) & | |
| CPPI5_INFO1_TRDESC_RECSIZE_MASK; | |
| } | |
| /** | |
| * cppi5_tr_init - Init TR record | |
| * @flags: Pointer to the TR's flags | |
| * @type: TR type | |
| * @static_tr: TR is static | |
| * @wait: Wait for TR completion before allow the next TR to start | |
| * @event_size: output event generation cfg | |
| * @cmd_id: TR identifier (application specifics) | |
| * | |
| * Init TR record | |
| */ | |
| static inline void cppi5_tr_init(cppi5_tr_flags_t *flags, | |
| enum cppi5_tr_types type, bool static_tr, | |
| bool wait, enum cppi5_tr_event_size event_size, | |
| u32 cmd_id) | |
| { | |
| *flags = type; | |
| *flags |= (event_size << CPPI5_TR_EVENT_SIZE_SHIFT) & | |
| CPPI5_TR_EVENT_SIZE_MASK; | |
| *flags |= (cmd_id << CPPI5_TR_CMD_ID_SHIFT) & | |
| CPPI5_TR_CMD_ID_MASK; | |
| if (static_tr && (type == CPPI5_TR_TYPE8 || type == CPPI5_TR_TYPE9)) | |
| *flags |= CPPI5_TR_STATIC; | |
| if (wait) | |
| *flags |= CPPI5_TR_WAIT; | |
| } | |
| /** | |
| * cppi5_tr_set_trigger - Configure trigger0/1 and trigger0/1_type | |
| * @flags: Pointer to the TR's flags | |
| * @trigger0: trigger0 selection | |
| * @trigger0_type: type of data transfer that will be enabled by trigger0 | |
| * @trigger1: trigger1 selection | |
| * @trigger1_type: type of data transfer that will be enabled by trigger1 | |
| * | |
| * Configure the triggers for the TR | |
| */ | |
| static inline void cppi5_tr_set_trigger(cppi5_tr_flags_t *flags, | |
| enum cppi5_tr_trigger trigger0, | |
| enum cppi5_tr_trigger_type trigger0_type, | |
| enum cppi5_tr_trigger trigger1, | |
| enum cppi5_tr_trigger_type trigger1_type) | |
| { | |
| *flags &= ~(CPPI5_TR_TRIGGER0_MASK | CPPI5_TR_TRIGGER0_TYPE_MASK | | |
| CPPI5_TR_TRIGGER1_MASK | CPPI5_TR_TRIGGER1_TYPE_MASK); | |
| *flags |= (trigger0 << CPPI5_TR_TRIGGER0_SHIFT) & | |
| CPPI5_TR_TRIGGER0_MASK; | |
| *flags |= (trigger0_type << CPPI5_TR_TRIGGER0_TYPE_SHIFT) & | |
| CPPI5_TR_TRIGGER0_TYPE_MASK; | |
| *flags |= (trigger1 << CPPI5_TR_TRIGGER1_SHIFT) & | |
| CPPI5_TR_TRIGGER1_MASK; | |
| *flags |= (trigger1_type << CPPI5_TR_TRIGGER1_TYPE_SHIFT) & | |
| CPPI5_TR_TRIGGER1_TYPE_MASK; | |
| } | |
| /** | |
| * cppi5_tr_cflag_set - Update the Configuration specific flags | |
| * @flags: Pointer to the TR's flags | |
| * @csf: Configuration specific flags | |
| * | |
| * Set a bit in Configuration Specific Flags section of the TR flags. | |
| */ | |
| static inline void cppi5_tr_csf_set(cppi5_tr_flags_t *flags, u32 csf) | |
| { | |
| *flags &= ~CPPI5_TR_CSF_FLAGS_MASK; | |
| *flags |= (csf << CPPI5_TR_CSF_FLAGS_SHIFT) & | |
| CPPI5_TR_CSF_FLAGS_MASK; | |
| } | |
| #endif /* __TI_CPPI5_H__ */ |