1 /*
2 * Copyright 2012 Red Hat Inc.
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 BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
18 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
19 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 *
22 * Authors: Ben Skeggs
23 *
24 */
25
26 #include "tgsi/tgsi_parse.h"
27
28 #include "nouveau/nv_object.xml.h"
29 #include "nv30-40_3d.xml.h"
30 #include "nv30_context.h"
31 #include "nvfx_shader.h"
32
33 static void
nv30_fragprog_upload(struct nv30_context * nv30)34 nv30_fragprog_upload(struct nv30_context *nv30)
35 {
36 struct nouveau_context *nv = &nv30->base;
37 struct nv30_fragprog *fp = nv30->fragprog.program;
38 struct pipe_context *pipe = &nv30->base.pipe;
39 struct pipe_transfer *transfer;
40 uint32_t *map;
41 int i; (void)i;
42
43 if (unlikely(!fp->buffer)) {
44 fp->buffer = pipe_buffer_create(pipe->screen, 0, 0, fp->insn_len * 4);
45 }
46
47 map = pipe_buffer_map(pipe, fp->buffer, PIPE_TRANSFER_WRITE, &transfer);
48 #ifndef PIPE_ARCH_BIG_ENDIAN
49 memcpy(map, fp->insn, fp->insn_len * 4);
50 #else
51 for (i = 0; i < fp->insn_len; i++)
52 *map++ = (fp->insn[i] >> 16) | (fp->insn[i] << 16);
53 #endif
54 pipe_buffer_unmap(pipe, transfer);
55
56 if (nv04_resource(fp->buffer)->domain != NOUVEAU_BO_VRAM)
57 nouveau_buffer_migrate(nv, nv04_resource(fp->buffer), NOUVEAU_BO_VRAM);
58 }
59
60 void
nv30_fragprog_validate(struct nv30_context * nv30)61 nv30_fragprog_validate(struct nv30_context *nv30)
62 {
63 struct nouveau_pushbuf *push = nv30->base.pushbuf;
64 struct nouveau_object *eng3d = nv30->screen->eng3d;
65 struct nv30_fragprog *fp = nv30->fragprog.program;
66 boolean upload = FALSE;
67 int i;
68
69 if (!fp->translated) {
70 _nvfx_fragprog_translate(nv30, fp, FALSE);
71 if (!fp->translated)
72 return;
73
74 upload = TRUE;
75 }
76
77 /* update constants, also needs to be done on every fp switch as we
78 * have no idea whether the constbuf changed in the meantime
79 */
80 if (nv30->fragprog.constbuf) {
81 struct pipe_resource *constbuf = nv30->fragprog.constbuf;
82 uint32_t *cbuf = (uint32_t *)nv04_resource(constbuf)->data;
83
84 for (i = 0; i < fp->nr_consts; i++) {
85 unsigned off = fp->consts[i].offset;
86 unsigned idx = fp->consts[i].index * 4;
87
88 if (!memcmp(&fp->insn[off], &cbuf[idx], 4 * 4))
89 continue;
90 memcpy(&fp->insn[off], &cbuf[idx], 4 * 4);
91 upload = TRUE;
92 }
93 }
94
95 if (upload)
96 nv30_fragprog_upload(nv30);
97
98 /* FP_ACTIVE_PROGRAM needs to be done again even if only the consts
99 * were updated. TEX_CACHE_CTL magic is not enough to convince the
100 * GPU that it should re-read the fragprog from VRAM... sigh.
101 */
102 if (nv30->state.fragprog != fp || upload) {
103 struct nv04_resource *r = nv04_resource(fp->buffer);
104
105 if (!PUSH_SPACE(push, 8))
106 return;
107 PUSH_RESET(push, BUFCTX_FRAGPROG);
108
109 BEGIN_NV04(push, NV30_3D(FP_ACTIVE_PROGRAM), 1);
110 PUSH_RESRC(push, NV30_3D(FP_ACTIVE_PROGRAM), BUFCTX_FRAGPROG, r, 0,
111 NOUVEAU_BO_LOW | NOUVEAU_BO_RD | NOUVEAU_BO_OR,
112 NV30_3D_FP_ACTIVE_PROGRAM_DMA0,
113 NV30_3D_FP_ACTIVE_PROGRAM_DMA1);
114 BEGIN_NV04(push, NV30_3D(FP_CONTROL), 1);
115 PUSH_DATA (push, fp->fp_control);
116 if (eng3d->oclass < NV40_3D_CLASS) {
117 BEGIN_NV04(push, NV30_3D(FP_REG_CONTROL), 1);
118 PUSH_DATA (push, 0x00010004);
119 BEGIN_NV04(push, NV30_3D(TEX_UNITS_ENABLE), 1);
120 PUSH_DATA (push, fp->texcoords);
121 } else {
122 BEGIN_NV04(push, SUBC_3D(0x0b40), 1);
123 PUSH_DATA (push, 0x00000000);
124 }
125
126 nv30->state.fragprog = fp;
127 }
128 }
129
130 static void *
nv30_fp_state_create(struct pipe_context * pipe,const struct pipe_shader_state * cso)131 nv30_fp_state_create(struct pipe_context *pipe,
132 const struct pipe_shader_state *cso)
133 {
134 struct nv30_fragprog *fp = CALLOC_STRUCT(nv30_fragprog);
135 if (!fp)
136 return NULL;
137
138 fp->pipe.tokens = tgsi_dup_tokens(cso->tokens);
139 tgsi_scan_shader(fp->pipe.tokens, &fp->info);
140 return fp;
141 }
142
143 static void
nv30_fp_state_delete(struct pipe_context * pipe,void * hwcso)144 nv30_fp_state_delete(struct pipe_context *pipe, void *hwcso)
145 {
146 struct nv30_fragprog *fp = hwcso;
147
148 pipe_resource_reference(&fp->buffer, NULL);
149
150 FREE((void *)fp->pipe.tokens);
151 FREE(fp->insn);
152 FREE(fp);
153 }
154
155 static void
nv30_fp_state_bind(struct pipe_context * pipe,void * hwcso)156 nv30_fp_state_bind(struct pipe_context *pipe, void *hwcso)
157 {
158 struct nv30_context *nv30 = nv30_context(pipe);
159
160 nv30->fragprog.program = hwcso;
161 nv30->dirty |= NV30_NEW_FRAGPROG;
162 }
163
164 void
nv30_fragprog_init(struct pipe_context * pipe)165 nv30_fragprog_init(struct pipe_context *pipe)
166 {
167 pipe->create_fs_state = nv30_fp_state_create;
168 pipe->bind_fs_state = nv30_fp_state_bind;
169 pipe->delete_fs_state = nv30_fp_state_delete;
170 }
171