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1 /*
2  * Copyright 2010 Ben Skeggs
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 shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  */
22 
23 #ifndef __NV50_PROG_H__
24 #define __NV50_PROG_H__
25 
26 struct nv50_context;
27 
28 #include "pipe/p_state.h"
29 #include "pipe/p_shader_tokens.h"
30 
31 struct nv50_varying {
32    uint8_t id; /* tgsi index */
33    uint8_t hw; /* hw index, nv50 wants flat FP inputs last */
34 
35    unsigned mask   : 4;
36    unsigned linear : 1;
37    unsigned pad    : 3;
38 
39    ubyte sn; /* semantic name */
40    ubyte si; /* semantic index */
41 };
42 
43 struct nv50_stream_output_state
44 {
45    uint32_t ctrl;
46    uint16_t stride[4];
47    uint8_t num_attribs[4];
48    uint8_t map_size;
49    uint8_t map[128];
50 };
51 
52 struct nv50_program {
53    struct pipe_shader_state pipe;
54 
55    ubyte type;
56    bool translated;
57 
58    uint32_t *code;
59    unsigned code_size;
60    unsigned code_base;
61    uint32_t *immd;
62    unsigned parm_size; /* size limit of uniform buffer */
63    uint32_t tls_space; /* required local memory per thread */
64 
65    ubyte max_gpr; /* REG_ALLOC_TEMP */
66    ubyte max_out; /* REG_ALLOC_RESULT or FP_RESULT_COUNT */
67 
68    ubyte in_nr;
69    ubyte out_nr;
70    struct nv50_varying in[16];
71    struct nv50_varying out[16];
72 
73    struct {
74       uint32_t attrs[3]; /* VP_ATTR_EN_0,1 and VP_GP_BUILTIN_ATTR_EN */
75       ubyte psiz;        /* output slot of point size */
76       ubyte bfc[2];      /* indices into varying for FFC (FP) or BFC (VP) */
77       ubyte edgeflag;
78       ubyte clpd[2];     /* output slot of clip distance[i]'s 1st component */
79       ubyte clpd_nr;
80       bool need_vertex_id;
81       uint32_t clip_mode;
82       uint8_t clip_enable; /* mask of defined clip planes */
83       uint8_t cull_enable; /* mask of defined cull distances */
84    } vp;
85 
86    struct {
87       uint32_t flags[2]; /* 0x19a8, 196c */
88       uint32_t interp; /* 0x1988 */
89       uint32_t colors; /* 0x1904 */
90       uint8_t has_samplemask;
91       uint8_t force_persample_interp;
92       uint8_t alphatest;
93    } fp;
94 
95    struct {
96       uint32_t vert_count;
97       uint8_t prim_type; /* point, line strip or tri strip */
98       uint8_t has_layer;
99       ubyte layerid; /* hw value of layer output */
100       uint8_t has_viewport;
101       ubyte viewportid; /* hw value of viewport index output */
102    } gp;
103 
104    struct {
105       uint32_t lmem_size; /* local memory (TGSI PRIVATE resource) size */
106       uint32_t smem_size; /* shared memory (TGSI LOCAL resource) size */
107       void *syms;
108       unsigned num_syms;
109    } cp;
110 
111    bool mul_zero_wins;
112 
113    void *fixups; /* relocation records */
114    void *interps; /* interpolation records */
115 
116    struct nouveau_heap *mem;
117 
118    struct nv50_stream_output_state *so;
119 };
120 
121 bool nv50_program_translate(struct nv50_program *, uint16_t chipset,
122                             struct pipe_debug_callback *);
123 bool nv50_program_upload_code(struct nv50_context *, struct nv50_program *);
124 void nv50_program_destroy(struct nv50_context *, struct nv50_program *);
125 
126 #endif /* __NV50_PROG_H__ */
127