src/gallium/drivers/r300/r300_cs.h

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
   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  * This file contains macros for immediate command submission.
  25  */
  26
  27 #ifndef R300_CS_H
  28 #define R300_CS_H
  29
  30 #include "r300_reg.h"
  31 #include "r300_context.h"
  32 #include "r300_winsys.h"
  33
  34 /* Yes, I know macros are ugly. However, they are much prettier than the code
  35  * that they neatly hide away, and don't have the cost of function setup,so
  36  * we're going to use them. */
  37
  38 #ifdef DEBUG
  39 #define CS_DEBUG(x) x
  40 #else
  41 #define CS_DEBUG(x)
  42 #endif
  43
  44 /**
  45  * Command submission setup.
  46  */
  47
  48 #define CS_LOCALS(context) \
  49     struct r300_context* const cs_context_copy = (context); \
  50     struct r300_winsys_screen *cs_winsys = cs_context_copy->rws; \
  51     CS_DEBUG(int cs_count = 0; (void) cs_count;)
  52
  53 #define BEGIN_CS(size) do { \
  54     assert(r300_check_cs(cs_context_copy, (size))); \
  55     cs_winsys->begin_cs(cs_winsys, (size), \
  56             __FILE__, __FUNCTION__, __LINE__); \
  57     CS_DEBUG(cs_count = size;) \
  58 } while (0)
  59
  60 #define END_CS do { \
  61     CS_DEBUG(if (cs_count != 0) \
  62         debug_printf("r300: Warning: cs_count off by %d\n", cs_count);) \
  63     cs_winsys->end_cs(cs_winsys, __FILE__, __FUNCTION__, __LINE__); \
  64     CS_DEBUG(cs_count = 0;) \
  65 } while (0)
  66
  67
  68 /**
  69  * Writing pure DWORDs.
  70  */
  71
  72 #define OUT_CS(value) do { \
  73     cs_winsys->write_cs_dword(cs_winsys, (value)); \
  74     CS_DEBUG(cs_count--;) \
  75 } while (0)
  76
  77 #define OUT_CS_32F(value) do { \
  78     cs_winsys->write_cs_dword(cs_winsys, fui(value)); \
  79     CS_DEBUG(cs_count--;) \
  80 } while (0)
  81
  82 #define OUT_CS_REG(register, value) do { \
  83     assert(register); \
  84     cs_winsys->write_cs_dword(cs_winsys, CP_PACKET0(register, 0)); \
  85     cs_winsys->write_cs_dword(cs_winsys, value); \
  86     CS_DEBUG(cs_count -= 2;) \
  87 } while (0)
  88
  89 /* Note: This expects count to be the number of registers,
  90  * not the actual packet0 count! */
  91 #define OUT_CS_REG_SEQ(register, count) do { \
  92     assert(register); \
  93     cs_winsys->write_cs_dword(cs_winsys, CP_PACKET0((register), ((count) - 1))); \
  94     CS_DEBUG(cs_count--;) \
  95 } while (0)
  96
  97 #define OUT_CS_TABLE(values, count) do { \
  98     cs_winsys->write_cs_table(cs_winsys, values, count); \
  99     CS_DEBUG(cs_count -= count;) \
 100 } while (0)
 101
 102 #define OUT_CS_ONE_REG(register, count) do { \
 103     assert(register); \
 104     cs_winsys->write_cs_dword(cs_winsys, CP_PACKET0((register), ((count) - 1)) | RADEON_ONE_REG_WR); \
 105     CS_DEBUG(cs_count--;) \
 106 } while (0)
 107
 108 #define OUT_CS_PKT3(op, count) do { \
 109     cs_winsys->write_cs_dword(cs_winsys, CP_PACKET3(op, count)); \
 110     CS_DEBUG(cs_count--;) \
 111 } while (0)
 112
 113
 114 /**
 115  * Writing relocations.
 116  */
 117
 118 #define OUT_CS_BUF_RELOC(bo, offset, rd, wd, flags) do { \
 119     assert(bo); \
 120     cs_winsys->write_cs_dword(cs_winsys, offset); \
 121     r300_buffer_write_reloc(cs_winsys, r300_buffer(bo), rd, wd, flags); \
 122     CS_DEBUG(cs_count -= 3;) \
 123 } while (0)
 124
 125 #define OUT_CS_TEX_RELOC(tex, offset, rd, wd, flags) do { \
 126     assert(tex); \
 127     cs_winsys->write_cs_dword(cs_winsys, offset); \
 128     r300_texture_write_reloc(cs_winsys, tex, rd, wd, flags);    \
 129     CS_DEBUG(cs_count -= 3;) \
 130 } while (0)
 131
 132 #define OUT_CS_BUF_RELOC_NO_OFFSET(bo, rd, wd, flags) do { \
 133     assert(bo); \
 134     r300_buffer_write_reloc(cs_winsys, r300_buffer(bo), rd, wd, flags); \
 135     CS_DEBUG(cs_count -= 2;) \
 136 } while (0)
 137
 138 #define OUT_CS_INDEX_RELOC(bo, offset, count, rd, wd, flags) do { \
 139     assert(bo); \
 140     cs_winsys->write_cs_dword(cs_winsys, offset); \
 141     cs_winsys->write_cs_dword(cs_winsys, count); \
 142     cs_winsys->write_cs_reloc(cs_winsys, bo, rd, wd, flags); \
 143     CS_DEBUG(cs_count -= 4;) \
 144 } while (0)
 145
 146
 147 /**
 148  * Command buffer emission.
 149  */
 150
 151 /* It's recommended not to call begin_cs/end_cs before/after this macro. */
 152 #define WRITE_CS_TABLE(values, count) do { \
 153     CS_DEBUG(assert(cs_count == 0);) \
 154     cs_winsys->write_cs_table(cs_winsys, values, count); \
 155 } while (0)
 156
 157 #endif /* R300_CS_H */