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_winsys_cs *cs_copy = (context)->cs; \
  50     struct r300_winsys_screen *cs_winsys = (context)->rws; \
  51     int cs_count = 0; (void) cs_count; (void) cs_winsys;
  52
  53 #define BEGIN_CS(size) do { \
  54     assert(size <= (cs_copy->ndw - cs_copy->cdw)); \
  55     CS_DEBUG(cs_count = size;) \
  56 } while (0)
  57
  58 #ifdef DEBUG
  59 #define END_CS do { \
  60     if (cs_count != 0) \
  61         debug_printf("r300: Warning: cs_count off by %d at (%s, %s:%i)\n", \
  62                      cs_count, __FUNCTION__, __FILE__, __LINE__); \
  63     cs_count = 0; \
  64 } while (0)
  65 #else
  66 #define END_CS
  67 #endif
  68
  69
  70 /**
  71  * Writing pure DWORDs.
  72  */
  73
  74 #define OUT_CS(value) do { \
  75     cs_copy->ptr[cs_copy->cdw++] = (value); \
  76     CS_DEBUG(cs_count--;) \
  77 } while (0)
  78
  79 #define OUT_CS_32F(value) \
  80     OUT_CS(fui(value))
  81
  82 #define OUT_CS_REG(register, value) do { \
  83     OUT_CS(CP_PACKET0(register, 0)); \
  84     OUT_CS(value); \
  85 } while (0)
  86
  87 /* Note: This expects count to be the number of registers,
  88  * not the actual packet0 count! */
  89 #define OUT_CS_REG_SEQ(register, count) \
  90     OUT_CS(CP_PACKET0((register), ((count) - 1)))
  91
  92 #define OUT_CS_ONE_REG(register, count) \
  93     OUT_CS(CP_PACKET0((register), ((count) - 1)) | RADEON_ONE_REG_WR)
  94
  95 #define OUT_CS_PKT3(op, count) \
  96     OUT_CS(CP_PACKET3(op, count))
  97
  98 #define OUT_CS_TABLE(values, count) do { \
  99     memcpy(cs_copy->ptr + cs_copy->cdw, values, count * 4); \
 100     cs_copy->cdw += count; \
 101     CS_DEBUG(cs_count -= count;) \
 102 } while (0)
 103
 104
 105 /**
 106  * Writing relocations.
 107  */
 108
 109 #define OUT_CS_RELOC(bo, offset, rd, wd) do { \
 110     assert(bo); \
 111     OUT_CS(offset); \
 112     cs_winsys->cs_write_reloc(cs_copy, bo, rd, wd); \
 113     CS_DEBUG(cs_count -= 2;) \
 114 } while (0)
 115
 116 #define OUT_CS_BUF_RELOC(bo, offset, rd, wd) do { \
 117     assert(bo); \
 118     OUT_CS_RELOC(r300_buffer(bo)->buf, offset, rd, wd); \
 119 } while (0)
 120
 121 #define OUT_CS_TEX_RELOC(tex, offset, rd, wd) do { \
 122     assert(tex); \
 123     OUT_CS_RELOC(tex->buffer, offset, rd, wd); \
 124 } while (0)
 125
 126 #define OUT_CS_BUF_RELOC_NO_OFFSET(bo, rd, wd) do { \
 127     assert(bo); \
 128     cs_winsys->cs_write_reloc(cs_copy, r300_buffer(bo)->buf, rd, wd); \
 129     CS_DEBUG(cs_count -= 2;) \
 130 } while (0)
 131
 132
 133 /**
 134  * Command buffer emission.
 135  */
 136
 137 #define WRITE_CS_TABLE(values, count) do { \
 138     CS_DEBUG(assert(cs_count == 0);) \
 139     memcpy(cs_copy->ptr + cs_copy->cdw, (values), (count) * 4); \
 140     cs_copy->cdw += (count); \
 141 } while (0)
 142
 143 #endif /* R300_CS_H */