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