1 /*
2  * Copyright (C) 2018 Jonathan Marek <jonathan@marek.ca>
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  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21  * SOFTWARE.
22  *
23  * Authors:
24  *    Jonathan Marek <jonathan@marek.ca>
25  */
26 
27 #ifndef IR2_H_
28 #define IR2_H_
29 
30 #include "compiler/nir/nir.h"
31 #include "pipe/p_context.h"
32 
33 struct ir2_fetch_info {
34    /* dword offset of the fetch instruction */
35    uint16_t offset;
36    union {
37       /* swizzle to merge with tgsi swizzle */
38       struct {
39          uint16_t dst_swiz;
40       } vtx;
41       /* sampler id to patch const_idx */
42       struct {
43          uint16_t samp_id;
44          uint8_t src_swiz;
45       } tex;
46    };
47 };
48 
49 struct ir2_shader_info {
50    /* compiler shader */
51    uint32_t *dwords;
52 
53    /* size of the compiled shader in dwords */
54    uint16_t sizedwords;
55 
56    /* highest GPR # used by shader */
57    int8_t max_reg;
58 
59    /* offset in dwords of first MEMORY export CF (for a20x hw binning) */
60    int16_t mem_export_ptr;
61 
62    /* fetch instruction info for patching */
63    uint16_t num_fetch_instrs;
64    struct ir2_fetch_info fetch_info[64];
65 };
66 
67 struct ir2_frag_linkage {
68    unsigned inputs_count;
69    struct {
70       uint8_t slot;
71       uint8_t ncomp;
72    } inputs[16];
73 
74    /* driver_location of fragcoord.zw, -1 if not used */
75    int fragcoord;
76 };
77 
78 struct ir2_shader_variant {
79    struct ir2_shader_info info;
80    struct ir2_frag_linkage f;
81 };
82 
83 struct fd2_shader_stateobj;
84 struct tgsi_token;
85 
86 void ir2_compile(struct fd2_shader_stateobj *so, unsigned variant,
87                  struct fd2_shader_stateobj *fp);
88 
89 struct nir_shader *ir2_tgsi_to_nir(const struct tgsi_token *tokens,
90                                    struct pipe_screen *screen);
91 
92 const nir_shader_compiler_options *ir2_get_compiler_options(void);
93 
94 int ir2_optimize_nir(nir_shader *s, bool lower);
95 
96 #endif /* IR2_H_ */
97