| /* SPDX-License-Identifier: MIT */ |
| /* |
| * Copyright © 2023 Intel Corporation |
| */ |
| |
| #ifndef _XE_INSTR_DEFS_H_ |
| #define _XE_INSTR_DEFS_H_ |
| |
| #include "regs/xe_reg_defs.h" |
| |
| /* |
| * The first dword of any GPU instruction is the "instruction header." Bits |
| * 31:29 identify the general type of the command and determine how exact |
| * opcodes and sub-opcodes will be encoded in the remaining bits. |
| */ |
| #define XE_INSTR_CMD_TYPE GENMASK(31, 29) |
| #define XE_INSTR_MI REG_FIELD_PREP(XE_INSTR_CMD_TYPE, 0x0) |
| #define XE_INSTR_GSC REG_FIELD_PREP(XE_INSTR_CMD_TYPE, 0x2) |
| #define XE_INSTR_GFXPIPE REG_FIELD_PREP(XE_INSTR_CMD_TYPE, 0x3) |
| |
| /* |
| * Most (but not all) instructions have a "length" field in the instruction |
| * header. The value expected is the total number of dwords for the |
| * instruction, minus two. |
| * |
| * Some instructions have length fields longer or shorter than 8 bits, but |
| * those are rare. This definition can be used for the common case where |
| * the length field is from 7:0. |
| */ |
| #define XE_INSTR_LEN_MASK GENMASK(7, 0) |
| #define XE_INSTR_NUM_DW(x) REG_FIELD_PREP(XE_INSTR_LEN_MASK, (x) - 2) |
| |
| #endif |
