src/gallium/drivers/radeonsi/radeonsi_pm4.c

   1 /*
   2  * Copyright 2012 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *      Christian König <christian.koenig@amd.com>
  25  */
  26
  27 #include "util/u_memory.h"
  28 #include "radeonsi_pipe.h"
  29 #include "radeonsi_pm4.h"
  30 #include "sid.h"
  31 #include "r600_hw_context_priv.h"
  32
  33 #define NUMBER_OF_STATES (sizeof(union si_state) / sizeof(struct si_pm4_state *))
  34
  35 void si_pm4_cmd_begin(struct si_pm4_state *state, unsigned opcode)
  36 {
  37         state->last_opcode = opcode;
  38         state->last_pm4 = state->ndw++;
  39 }
  40
  41 void si_pm4_cmd_add(struct si_pm4_state *state, uint32_t dw)
  42 {
  43         state->pm4[state->ndw++] = dw;
  44 }
  45
  46 void si_pm4_cmd_end(struct si_pm4_state *state, bool predicate)
  47 {
  48         unsigned count;
  49         count = state->ndw - state->last_pm4 - 2;
  50         state->pm4[state->last_pm4] = PKT3(state->last_opcode,
  51                                            count, predicate);
  52
  53         assert(state->ndw <= SI_PM4_MAX_DW);
  54 }
  55
  56 void si_pm4_set_reg(struct si_pm4_state *state, unsigned reg, uint32_t val)
  57 {
  58         unsigned opcode;
  59
  60         if (reg >= SI_CONFIG_REG_OFFSET && reg < SI_CONFIG_REG_END) {
  61                 opcode = PKT3_SET_CONFIG_REG;
  62                 reg -= SI_CONFIG_REG_OFFSET;
  63
  64         } else if (reg >= SI_SH_REG_OFFSET && reg < SI_SH_REG_END) {
  65                 opcode = PKT3_SET_SH_REG;
  66                 reg -= SI_SH_REG_OFFSET;
  67
  68         } else if (reg >= SI_CONTEXT_REG_OFFSET && reg < SI_CONTEXT_REG_END) {
  69                 opcode = PKT3_SET_CONTEXT_REG;
  70                 reg -= SI_CONTEXT_REG_OFFSET;
  71
  72         } else {
  73                 R600_ERR("Invalid register offset %08x!\n", reg);
  74                 return;
  75         }
  76
  77         reg >>= 2;
  78
  79         if (opcode != state->last_opcode || reg != (state->last_reg + 1)) {
  80                 si_pm4_cmd_begin(state, opcode);
  81                 si_pm4_cmd_add(state, reg);
  82         }
  83
  84         state->last_reg = reg;
  85         si_pm4_cmd_add(state, val);
  86         si_pm4_cmd_end(state, false);
  87 }
  88
  89 void si_pm4_add_bo(struct si_pm4_state *state,
  90                    struct si_resource *bo,
  91                    enum radeon_bo_usage usage)
  92 {
  93         unsigned idx = state->nbo++;
  94         assert(idx < SI_PM4_MAX_BO);
  95
  96         si_resource_reference(&state->bo[idx], bo);
  97         state->bo_usage[idx] = usage;
  98 }
  99
 100 void si_pm4_sh_data_begin(struct si_pm4_state *state)
 101 {
 102         si_pm4_cmd_begin(state, PKT3_NOP);
 103 }
 104
 105 void si_pm4_sh_data_add(struct si_pm4_state *state, uint32_t dw)
 106 {
 107         si_pm4_cmd_add(state, dw);
 108 }
 109
 110 void si_pm4_sh_data_end(struct si_pm4_state *state, unsigned base, unsigned idx)
 111 {
 112         unsigned offs = state->last_pm4 + 1;
 113         unsigned reg = base + idx * 4;
 114
 115         /* Bail if no data was added */
 116         if (state->ndw == offs) {
 117                 state->ndw--;
 118                 return;
 119         }
 120
 121         si_pm4_cmd_end(state, false);
 122
 123         si_pm4_cmd_begin(state, PKT3_SET_SH_REG_OFFSET);
 124         si_pm4_cmd_add(state, (reg - SI_SH_REG_OFFSET) >> 2);
 125         state->relocs[state->nrelocs++] = state->ndw;
 126         si_pm4_cmd_add(state, offs << 2);
 127         si_pm4_cmd_add(state, 0);
 128         si_pm4_cmd_end(state, false);
 129 }
 130
 131 void si_pm4_inval_shader_cache(struct si_pm4_state *state)
 132 {
 133         state->cp_coher_cntl |= S_0085F0_SH_ICACHE_ACTION_ENA(1);
 134         state->cp_coher_cntl |= S_0085F0_SH_KCACHE_ACTION_ENA(1);
 135 }
 136
 137 void si_pm4_inval_texture_cache(struct si_pm4_state *state)
 138 {
 139         state->cp_coher_cntl |= S_0085F0_TC_ACTION_ENA(1);
 140 }
 141
 142 void si_pm4_inval_vertex_cache(struct si_pm4_state *state)
 143 {
 144         /* Some GPUs don't have the vertex cache and must use the texture cache instead. */
 145         state->cp_coher_cntl |= S_0085F0_TC_ACTION_ENA(1);
 146 }
 147
 148 void si_pm4_inval_fb_cache(struct si_pm4_state *state, unsigned nr_cbufs)
 149 {
 150         state->cp_coher_cntl |= S_0085F0_CB_ACTION_ENA(1);
 151         state->cp_coher_cntl |= ((1 << nr_cbufs) - 1) << S_0085F0_CB0_DEST_BASE_ENA_SHIFT;
 152 }
 153
 154 void si_pm4_inval_zsbuf_cache(struct si_pm4_state *state)
 155 {
 156         state->cp_coher_cntl |= S_0085F0_DB_ACTION_ENA(1) | S_0085F0_DB_DEST_BASE_ENA(1);
 157 }
 158
 159 void si_pm4_free_state(struct r600_context *rctx,
 160                        struct si_pm4_state *state,
 161                        unsigned idx)
 162 {
 163         if (state == NULL)
 164                 return;
 165
 166         if (idx != ~0 && rctx->emitted.array[idx] == state) {
 167                 rctx->emitted.array[idx] = NULL;
 168         }
 169
 170         for (int i = 0; i < state->nbo; ++i) {
 171                 si_resource_reference(&state->bo[i], NULL);
 172         }
 173         FREE(state);
 174 }
 175
 176 uint32_t si_pm4_sync_flags(struct r600_context *rctx)
 177 {
 178         uint32_t cp_coher_cntl = 0;
 179
 180         for (int i = 0; i < NUMBER_OF_STATES; ++i) {
 181                 struct si_pm4_state *state = rctx->queued.array[i];
 182
 183                 if (!state || rctx->emitted.array[i] == state)
 184                         continue;
 185
 186                 cp_coher_cntl |= state->cp_coher_cntl;
 187         }
 188         return cp_coher_cntl;
 189 }
 190
 191 unsigned si_pm4_dirty_dw(struct r600_context *rctx)
 192 {
 193         unsigned count = 0;
 194
 195         for (int i = 0; i < NUMBER_OF_STATES; ++i) {
 196                 struct si_pm4_state *state = rctx->queued.array[i];
 197
 198                 if (!state || rctx->emitted.array[i] == state)
 199                         continue;
 200
 201                 count += state->ndw;
 202         }
 203
 204         return count;
 205 }
 206
 207 void si_pm4_emit(struct r600_context *rctx, struct si_pm4_state *state)
 208 {
 209         struct radeon_winsys_cs *cs = rctx->cs;
 210         for (int i = 0; i < state->nbo; ++i) {
 211                 r600_context_bo_reloc(rctx, state->bo[i],
 212                                       state->bo_usage[i]);
 213         }
 214
 215         memcpy(&cs->buf[cs->cdw], state->pm4, state->ndw * 4);
 216
 217         for (int i = 0; i < state->nrelocs; ++i) {
 218                 cs->buf[cs->cdw + state->relocs[i]] += cs->cdw << 2;
 219         }
 220
 221         cs->cdw += state->ndw;
 222 }
 223
 224 void si_pm4_emit_dirty(struct r600_context *rctx)
 225 {
 226         for (int i = 0; i < NUMBER_OF_STATES; ++i) {
 227                 struct si_pm4_state *state = rctx->queued.array[i];
 228
 229                 if (!state || rctx->emitted.array[i] == state)
 230                         continue;
 231
 232                 si_pm4_emit(rctx, state);
 233                 rctx->emitted.array[i] = state;
 234         }
 235 }
 236
 237 void si_pm4_reset_emitted(struct r600_context *rctx)
 238 {
 239         memset(&rctx->emitted, 0, sizeof(rctx->emitted));
 240 }