1 /* 2 * Copyright 2012 Advanced Micro Devices, Inc. 3 * 4 * SPDX-License-Identifier: MIT 5 */ 6 7 #ifndef SI_PM4_H 8 #define SI_PM4_H 9 10 #include <stdint.h> 11 #include <stdbool.h> 12 13 #ifdef __cplusplus 14 extern "C" { 15 #endif 16 17 /* forward definitions */ 18 struct si_screen; 19 struct si_context; 20 21 /* State atoms are callbacks which write a sequence of packets into a GPU 22 * command buffer (AKA indirect buffer, AKA IB, AKA command stream, AKA CS). 23 */ 24 struct si_atom { 25 /* The index is only used by si_pm4_emit_state. Non-pm4 atoms don't use it. */ 26 void (*emit)(struct si_context *ctx, unsigned index); 27 }; 28 29 struct si_pm4_state { 30 struct si_screen *screen; 31 32 /* PKT3_SET_*_REG handling */ 33 uint16_t last_reg; /* register offset in dwords */ 34 uint16_t last_pm4; 35 uint16_t ndw; /* number of dwords in pm4 */ 36 uint8_t last_opcode; 37 uint8_t last_idx; 38 bool is_compute_queue; 39 bool packed_is_padded; /* whether SET_*_REG_PAIRS_PACKED is padded to an even number of regs */ 40 41 /* For shader states only */ 42 struct si_atom atom; 43 44 /* commands for the DE */ 45 uint16_t max_dw; 46 47 /* Used by SQTT to override the shader address */ 48 uint32_t spi_shader_pgm_lo_reg; 49 50 /* This must be the last field because the array can continue after the structure. */ 51 uint32_t pm4[64]; 52 }; 53 54 void si_pm4_cmd_add(struct si_pm4_state *state, uint32_t dw); 55 void si_pm4_set_reg(struct si_pm4_state *state, unsigned reg, uint32_t val); 56 void si_pm4_set_reg_idx3(struct si_pm4_state *state, unsigned reg, uint32_t val); 57 void si_pm4_finalize(struct si_pm4_state *state); 58 59 void si_pm4_clear_state(struct si_pm4_state *state, struct si_screen *sscreen, 60 bool is_compute_queue); 61 void si_pm4_free_state(struct si_context *sctx, struct si_pm4_state *state, unsigned idx); 62 63 void si_pm4_emit_commands(struct si_context *sctx, struct si_pm4_state *state); 64 void si_pm4_emit_state(struct si_context *sctx, unsigned index); 65 void si_pm4_emit_shader(struct si_context *sctx, unsigned index); 66 void si_pm4_reset_emitted(struct si_context *sctx); 67 struct si_pm4_state *si_pm4_create_sized(struct si_screen *sscreen, unsigned max_dw, 68 bool is_compute_queue); 69 struct si_pm4_state *si_pm4_clone(struct si_pm4_state *orig); 70 71 #ifdef __cplusplus 72 } 73 #endif 74 75 #endif 76