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  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.  
  33. /* Yes, I know macros are ugly. However, they are much prettier than the code
  34.  * that they neatly hide away, and don't have the cost of function setup,so
  35.  * we're going to use them. */
  36.  
  37. /**
  38.  * Command submission setup.
  39.  */
  40.  
  41. #define CS_LOCALS(context) \
  42.     struct radeon_winsys_cs *cs_copy = (context)->cs; \
  43.     struct radeon_winsys *cs_winsys = (context)->rws; \
  44.     int cs_count = 0; (void) cs_count; (void) cs_winsys;
  45.  
  46. #ifdef DEBUG
  47.  
  48. #define BEGIN_CS(size) do { \
  49.     assert(size <= (RADEON_MAX_CMDBUF_DWORDS - cs_copy->cdw)); \
  50.     cs_count = size; \
  51. } while (0)
  52.  
  53. #define END_CS do { \
  54.     if (cs_count != 0) \
  55.         debug_printf("r300: Warning: cs_count off by %d at (%s, %s:%i)\n", \
  56.                      cs_count, __FUNCTION__, __FILE__, __LINE__); \
  57.     cs_count = 0; \
  58. } while (0)
  59.  
  60. #define CS_USED_DW(x) cs_count -= (x)
  61.  
  62. #else
  63.  
  64. #define BEGIN_CS(size)
  65. #define END_CS
  66. #define CS_USED_DW(x)
  67.  
  68. #endif
  69.  
  70. /**
  71.  * Writing pure DWORDs.
  72.  */
  73.  
  74. #define OUT_CS(value) do { \
  75.     cs_copy->buf[cs_copy->cdw++] = (value); \
  76.     CS_USED_DW(1); \
  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->buf + cs_copy->cdw, (values), (count) * 4); \
  100.     cs_copy->cdw += (count); \
  101.     CS_USED_DW(count); \
  102. } while (0)
  103.  
  104.  
  105. /**
  106.  * Writing relocations.
  107.  */
  108.  
  109. #define OUT_CS_RELOC(r) do { \
  110.     assert((r)); \
  111.     assert((r)->cs_buf); \
  112.     cs_winsys->cs_write_reloc(cs_copy, (r)->cs_buf); \
  113.     CS_USED_DW(2); \
  114. } while (0)
  115.  
  116.  
  117. /**
  118.  * Command buffer emission.
  119.  */
  120.  
  121. #define WRITE_CS_TABLE(values, count) do { \
  122.     assert(cs_count == 0); \
  123.     memcpy(cs_copy->buf + cs_copy->cdw, (values), (count) * 4); \
  124.     cs_copy->cdw += (count); \
  125. } while (0)
  126.  
  127. #endif /* R300_CS_H */
  128.