diff options
Diffstat (limited to 'drivers/misc/habanalabs/include/gaudi/gaudi_packets.h')
| -rw-r--r-- | drivers/misc/habanalabs/include/gaudi/gaudi_packets.h | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/include/gaudi/gaudi_packets.h b/drivers/misc/habanalabs/include/gaudi/gaudi_packets.h new file mode 100644 index 000000000..66fc083a7 --- /dev/null +++ b/drivers/misc/habanalabs/include/gaudi/gaudi_packets.h @@ -0,0 +1,194 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * Copyright 2017-2020 HabanaLabs, Ltd. + * All Rights Reserved. + * + */ + +#ifndef GAUDI_PACKETS_H +#define GAUDI_PACKETS_H + +#include <linux/types.h> + +#define PACKET_HEADER_PACKET_ID_SHIFT 56 +#define PACKET_HEADER_PACKET_ID_MASK 0x1F00000000000000ull + +enum packet_id { + PACKET_WREG_32 = 0x1, + PACKET_WREG_BULK = 0x2, + PACKET_MSG_LONG = 0x3, + PACKET_MSG_SHORT = 0x4, + PACKET_CP_DMA = 0x5, + PACKET_REPEAT = 0x6, + PACKET_MSG_PROT = 0x7, + PACKET_FENCE = 0x8, + PACKET_LIN_DMA = 0x9, + PACKET_NOP = 0xA, + PACKET_STOP = 0xB, + PACKET_ARB_POINT = 0xC, + PACKET_WAIT = 0xD, + PACKET_LOAD_AND_EXE = 0xF, + MAX_PACKET_ID = (PACKET_HEADER_PACKET_ID_MASK >> + PACKET_HEADER_PACKET_ID_SHIFT) + 1 +}; + +#define GAUDI_PKT_CTL_OPCODE_SHIFT 24 +#define GAUDI_PKT_CTL_OPCODE_MASK 0x1F000000 + +#define GAUDI_PKT_CTL_EB_SHIFT 29 +#define GAUDI_PKT_CTL_EB_MASK 0x20000000 + +#define GAUDI_PKT_CTL_RB_SHIFT 30 +#define GAUDI_PKT_CTL_RB_MASK 0x40000000 + +#define GAUDI_PKT_CTL_MB_SHIFT 31 +#define GAUDI_PKT_CTL_MB_MASK 0x80000000 + +/* All packets have, at least, an 8-byte header, which contains + * the packet type. The kernel driver uses the packet header for packet + * validation and to perform any necessary required preparation before + * sending them off to the hardware. + */ +struct gaudi_packet { + __le64 header; + /* The rest of the packet data follows. Use the corresponding + * packet_XXX struct to deference the data, based on packet type + */ + u8 contents[]; +}; + +struct packet_nop { + __le32 reserved; + __le32 ctl; +}; + +struct packet_stop { + __le32 reserved; + __le32 ctl; +}; + +struct packet_wreg32 { + __le32 value; + __le32 ctl; +}; + +struct packet_wreg_bulk { + __le32 size64; + __le32 ctl; + __le64 values[]; /* data starts here */ +}; + +#define GAUDI_PKT_LONG_CTL_OP_SHIFT 20 +#define GAUDI_PKT_LONG_CTL_OP_MASK 0x00300000 + +struct packet_msg_long { + __le32 value; + __le32 ctl; + __le64 addr; +}; + +#define GAUDI_PKT_SHORT_VAL_SOB_SYNC_VAL_SHIFT 0 +#define GAUDI_PKT_SHORT_VAL_SOB_SYNC_VAL_MASK 0x00007FFF + +#define GAUDI_PKT_SHORT_VAL_SOB_MOD_SHIFT 31 +#define GAUDI_PKT_SHORT_VAL_SOB_MOD_MASK 0x80000000 + +#define GAUDI_PKT_SHORT_VAL_MON_SYNC_GID_SHIFT 0 +#define GAUDI_PKT_SHORT_VAL_MON_SYNC_GID_MASK 0x000000FF + +#define GAUDI_PKT_SHORT_VAL_MON_MASK_SHIFT 8 +#define GAUDI_PKT_SHORT_VAL_MON_MASK_MASK 0x0000FF00 + +#define GAUDI_PKT_SHORT_VAL_MON_MODE_SHIFT 16 +#define GAUDI_PKT_SHORT_VAL_MON_MODE_MASK 0x00010000 + +#define GAUDI_PKT_SHORT_VAL_MON_SYNC_VAL_SHIFT 17 +#define GAUDI_PKT_SHORT_VAL_MON_SYNC_VAL_MASK 0xFFFE0000 + +#define GAUDI_PKT_SHORT_CTL_ADDR_SHIFT 0 +#define GAUDI_PKT_SHORT_CTL_ADDR_MASK 0x0000FFFF + +#define GAUDI_PKT_SHORT_CTL_OP_SHIFT 20 +#define GAUDI_PKT_SHORT_CTL_OP_MASK 0x00300000 + +#define GAUDI_PKT_SHORT_CTL_BASE_SHIFT 22 +#define GAUDI_PKT_SHORT_CTL_BASE_MASK 0x00C00000 + +struct packet_msg_short { + __le32 value; + __le32 ctl; +}; + +struct packet_msg_prot { + __le32 value; + __le32 ctl; + __le64 addr; +}; + +#define GAUDI_PKT_FENCE_CFG_DEC_VAL_SHIFT 0 +#define GAUDI_PKT_FENCE_CFG_DEC_VAL_MASK 0x0000000F + +#define GAUDI_PKT_FENCE_CFG_TARGET_VAL_SHIFT 16 +#define GAUDI_PKT_FENCE_CFG_TARGET_VAL_MASK 0x00FF0000 + +#define GAUDI_PKT_FENCE_CFG_ID_SHIFT 30 +#define GAUDI_PKT_FENCE_CFG_ID_MASK 0xC0000000 + +#define GAUDI_PKT_FENCE_CTL_PRED_SHIFT 0 +#define GAUDI_PKT_FENCE_CTL_PRED_MASK 0x0000001F + +struct packet_fence { + __le32 cfg; + __le32 ctl; +}; + +#define GAUDI_PKT_LIN_DMA_CTL_WRCOMP_EN_SHIFT 0 +#define GAUDI_PKT_LIN_DMA_CTL_WRCOMP_EN_MASK 0x00000001 + +#define GAUDI_PKT_LIN_DMA_CTL_LIN_SHIFT 3 +#define GAUDI_PKT_LIN_DMA_CTL_LIN_MASK 0x00000008 + +#define GAUDI_PKT_LIN_DMA_CTL_MEMSET_SHIFT 4 +#define GAUDI_PKT_LIN_DMA_CTL_MEMSET_MASK 0x00000010 + +#define GAUDI_PKT_LIN_DMA_DST_ADDR_SHIFT 0 +#define GAUDI_PKT_LIN_DMA_DST_ADDR_MASK 0x00FFFFFFFFFFFFFFull + +struct packet_lin_dma { + __le32 tsize; + __le32 ctl; + __le64 src_addr; + __le64 dst_addr; +}; + +struct packet_arb_point { + __le32 cfg; + __le32 ctl; +}; + +struct packet_repeat { + __le32 cfg; + __le32 ctl; +}; + +struct packet_wait { + __le32 cfg; + __le32 ctl; +}; + +#define GAUDI_PKT_LOAD_AND_EXE_CFG_DST_SHIFT 0 +#define GAUDI_PKT_LOAD_AND_EXE_CFG_DST_MASK 0x00000001 + +struct packet_load_and_exe { + __le32 cfg; + __le32 ctl; + __le64 src_addr; +}; + +struct packet_cp_dma { + __le32 tsize; + __le32 ctl; + __le64 src_addr; +}; + +#endif /* GAUDI_PACKETS_H */ |