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
  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_cmdbuf *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 <= (cs_copy->current.max_dw - cs_copy->current.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->current.buf[cs_copy->current.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->current.buf + cs_copy->current.cdw, (values), (count) * 4); \
 100     cs_copy->current.cdw += (count); \
 101     CS_USED_DW(count); \
 102 } while (0)
 103
 104
 105 /**
 106  * Writing buffers.
 107  */
 108
 109 #define OUT_CS_RELOC(r) do { \
 110     assert((r)); \
 111     assert((r)->buf); \
 112     OUT_CS(0xc0001000); /* PKT3_NOP */ \
 113     OUT_CS(cs_winsys->cs_lookup_buffer(cs_copy, (r)->buf) * 4); \
 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->current.buf + cs_copy->current.cdw, (values), (count) * 4); \
 124     cs_copy->current.cdw += (count); \
 125 } while (0)
 126
 127 #endif /* R300_CS_H */