src/gallium/drivers/radeon/r600_cs.h

   1 /*
   2  * Copyright 2013 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
  24 /**
  25  * This file contains helpers for writing commands to commands streams.
  26  */
  27
  28 #ifndef R600_CS_H
  29 #define R600_CS_H
  30
  31 #include "radeonsi/si_pipe.h"
  32 #include "amd/common/sid.h"
  33
  34 /**
  35  * Return true if there is enough memory in VRAM and GTT for the buffers
  36  * added so far.
  37  *
  38  * \param vram      VRAM memory size not added to the buffer list yet
  39  * \param gtt       GTT memory size not added to the buffer list yet
  40  */
  41 static inline bool
  42 radeon_cs_memory_below_limit(struct si_screen *screen,
  43                              struct radeon_winsys_cs *cs,
  44                              uint64_t vram, uint64_t gtt)
  45 {
  46         vram += cs->used_vram;
  47         gtt += cs->used_gart;
  48
  49         /* Anything that goes above the VRAM size should go to GTT. */
  50         if (vram > screen->info.vram_size)
  51                 gtt += vram - screen->info.vram_size;
  52
  53         /* Now we just need to check if we have enough GTT. */
  54         return gtt < screen->info.gart_size * 0.7;
  55 }
  56
  57 /**
  58  * Add a buffer to the buffer list for the given command stream (CS).
  59  *
  60  * All buffers used by a CS must be added to the list. This tells the kernel
  61  * driver which buffers are used by GPU commands. Other buffers can
  62  * be swapped out (not accessible) during execution.
  63  *
  64  * The buffer list becomes empty after every context flush and must be
  65  * rebuilt.
  66  */
  67 static inline unsigned radeon_add_to_buffer_list(struct r600_common_context *rctx,
  68                                                  struct r600_ring *ring,
  69                                                  struct r600_resource *rbo,
  70                                                  enum radeon_bo_usage usage,
  71                                                  enum radeon_bo_priority priority)
  72 {
  73         assert(usage);
  74         return rctx->ws->cs_add_buffer(
  75                 ring->cs, rbo->buf,
  76                 (enum radeon_bo_usage)(usage | RADEON_USAGE_SYNCHRONIZED),
  77                 rbo->domains, priority) * 4;
  78 }
  79
  80 /**
  81  * Same as above, but also checks memory usage and flushes the context
  82  * accordingly.
  83  *
  84  * When this SHOULD NOT be used:
  85  *
  86  * - if r600_context_add_resource_size has been called for the buffer
  87  *   followed by *_need_cs_space for checking the memory usage
  88  *
  89  * - if r600_need_dma_space has been called for the buffer
  90  *
  91  * - when emitting state packets and draw packets (because preceding packets
  92  *   can't be re-emitted at that point)
  93  *
  94  * - if shader resource "enabled_mask" is not up-to-date or there is
  95  *   a different constraint disallowing a context flush
  96  */
  97 static inline unsigned
  98 radeon_add_to_buffer_list_check_mem(struct r600_common_context *rctx,
  99                                     struct r600_ring *ring,
 100                                     struct r600_resource *rbo,
 101                                     enum radeon_bo_usage usage,
 102                                     enum radeon_bo_priority priority,
 103                                     bool check_mem)
 104 {
 105         if (check_mem &&
 106             !radeon_cs_memory_below_limit(rctx->screen, ring->cs,
 107                                           rctx->vram + rbo->vram_usage,
 108                                           rctx->gtt + rbo->gart_usage))
 109                 ring->flush(rctx, PIPE_FLUSH_ASYNC, NULL);
 110
 111         return radeon_add_to_buffer_list(rctx, ring, rbo, usage, priority);
 112 }
 113
 114 static inline void radeon_set_config_reg_seq(struct radeon_winsys_cs *cs, unsigned reg, unsigned num)
 115 {
 116         assert(reg < SI_CONTEXT_REG_OFFSET);
 117         assert(cs->current.cdw + 2 + num <= cs->current.max_dw);
 118         radeon_emit(cs, PKT3(PKT3_SET_CONFIG_REG, num, 0));
 119         radeon_emit(cs, (reg - SI_CONFIG_REG_OFFSET) >> 2);
 120 }
 121
 122 static inline void radeon_set_config_reg(struct radeon_winsys_cs *cs, unsigned reg, unsigned value)
 123 {
 124         radeon_set_config_reg_seq(cs, reg, 1);
 125         radeon_emit(cs, value);
 126 }
 127
 128 static inline void radeon_set_context_reg_seq(struct radeon_winsys_cs *cs, unsigned reg, unsigned num)
 129 {
 130         assert(reg >= SI_CONTEXT_REG_OFFSET);
 131         assert(cs->current.cdw + 2 + num <= cs->current.max_dw);
 132         radeon_emit(cs, PKT3(PKT3_SET_CONTEXT_REG, num, 0));
 133         radeon_emit(cs, (reg - SI_CONTEXT_REG_OFFSET) >> 2);
 134 }
 135
 136 static inline void radeon_set_context_reg(struct radeon_winsys_cs *cs, unsigned reg, unsigned value)
 137 {
 138         radeon_set_context_reg_seq(cs, reg, 1);
 139         radeon_emit(cs, value);
 140 }
 141
 142 static inline void radeon_set_context_reg_idx(struct radeon_winsys_cs *cs,
 143                                               unsigned reg, unsigned idx,
 144                                               unsigned value)
 145 {
 146         assert(reg >= SI_CONTEXT_REG_OFFSET);
 147         assert(cs->current.cdw + 3 <= cs->current.max_dw);
 148         radeon_emit(cs, PKT3(PKT3_SET_CONTEXT_REG, 1, 0));
 149         radeon_emit(cs, (reg - SI_CONTEXT_REG_OFFSET) >> 2 | (idx << 28));
 150         radeon_emit(cs, value);
 151 }
 152
 153 static inline void radeon_set_sh_reg_seq(struct radeon_winsys_cs *cs, unsigned reg, unsigned num)
 154 {
 155         assert(reg >= SI_SH_REG_OFFSET && reg < SI_SH_REG_END);
 156         assert(cs->current.cdw + 2 + num <= cs->current.max_dw);
 157         radeon_emit(cs, PKT3(PKT3_SET_SH_REG, num, 0));
 158         radeon_emit(cs, (reg - SI_SH_REG_OFFSET) >> 2);
 159 }
 160
 161 static inline void radeon_set_sh_reg(struct radeon_winsys_cs *cs, unsigned reg, unsigned value)
 162 {
 163         radeon_set_sh_reg_seq(cs, reg, 1);
 164         radeon_emit(cs, value);
 165 }
 166
 167 static inline void radeon_set_uconfig_reg_seq(struct radeon_winsys_cs *cs, unsigned reg, unsigned num)
 168 {
 169         assert(reg >= CIK_UCONFIG_REG_OFFSET && reg < CIK_UCONFIG_REG_END);
 170         assert(cs->current.cdw + 2 + num <= cs->current.max_dw);
 171         radeon_emit(cs, PKT3(PKT3_SET_UCONFIG_REG, num, 0));
 172         radeon_emit(cs, (reg - CIK_UCONFIG_REG_OFFSET) >> 2);
 173 }
 174
 175 static inline void radeon_set_uconfig_reg(struct radeon_winsys_cs *cs, unsigned reg, unsigned value)
 176 {
 177         radeon_set_uconfig_reg_seq(cs, reg, 1);
 178         radeon_emit(cs, value);
 179 }
 180
 181 static inline void radeon_set_uconfig_reg_idx(struct radeon_winsys_cs *cs,
 182                                               unsigned reg, unsigned idx,
 183                                               unsigned value)
 184 {
 185         assert(reg >= CIK_UCONFIG_REG_OFFSET && reg < CIK_UCONFIG_REG_END);
 186         assert(cs->current.cdw + 3 <= cs->current.max_dw);
 187         radeon_emit(cs, PKT3(PKT3_SET_UCONFIG_REG, 1, 0));
 188         radeon_emit(cs, (reg - CIK_UCONFIG_REG_OFFSET) >> 2 | (idx << 28));
 189         radeon_emit(cs, value);
 190 }
 191
 192 #endif