1/*
2 * Copyright 2010 Christoph Bumiller
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
23#include "pipe/p_defines.h"
24#include "util/u_framebuffer.h"
25
26#ifdef NV50_WITH_DRAW_MODULE
27#include "draw/draw_context.h"
28#endif
29
30#include "nv50_context.h"
31#include "nv50_screen.h"
32#include "nv50_resource.h"
33
34static void
35nv50_flush(struct pipe_context *pipe,
36           struct pipe_fence_handle **fence)
37{
38   struct nouveau_screen *screen = nouveau_screen(pipe->screen);
39
40   if (fence)
41      nouveau_fence_ref(screen->fence.current, (struct nouveau_fence **)fence);
42
43   PUSH_KICK(screen->pushbuf);
44}
45
46static void
47nv50_texture_barrier(struct pipe_context *pipe)
48{
49   struct nouveau_pushbuf *push = nv50_context(pipe)->base.pushbuf;
50
51   BEGIN_NV04(push, SUBC_3D(NV50_GRAPH_SERIALIZE), 1);
52   PUSH_DATA (push, 0);
53   BEGIN_NV04(push, NV50_3D(TEX_CACHE_CTL), 1);
54   PUSH_DATA (push, 0x20);
55}
56
57void
58nv50_default_kick_notify(struct nouveau_pushbuf *push)
59{
60   struct nv50_screen *screen = push->user_priv;
61
62   if (screen) {
63      nouveau_fence_next(&screen->base);
64      nouveau_fence_update(&screen->base, TRUE);
65      if (screen->cur_ctx)
66         screen->cur_ctx->state.flushed = TRUE;
67   }
68}
69
70static void
71nv50_context_unreference_resources(struct nv50_context *nv50)
72{
73   unsigned s, i;
74
75   nouveau_bufctx_del(&nv50->bufctx_3d);
76   nouveau_bufctx_del(&nv50->bufctx);
77
78   util_unreference_framebuffer_state(&nv50->framebuffer);
79
80   for (i = 0; i < nv50->num_vtxbufs; ++i)
81      pipe_resource_reference(&nv50->vtxbuf[i].buffer, NULL);
82
83   pipe_resource_reference(&nv50->idxbuf.buffer, NULL);
84
85   for (s = 0; s < 3; ++s) {
86      for (i = 0; i < nv50->num_textures[s]; ++i)
87         pipe_sampler_view_reference(&nv50->textures[s][i], NULL);
88
89      for (i = 0; i < NV50_MAX_PIPE_CONSTBUFS; ++i)
90         if (!nv50->constbuf[s][i].user)
91            pipe_resource_reference(&nv50->constbuf[s][i].u.buf, NULL);
92   }
93}
94
95static void
96nv50_destroy(struct pipe_context *pipe)
97{
98   struct nv50_context *nv50 = nv50_context(pipe);
99
100   if (nv50_context_screen(nv50)->cur_ctx == nv50) {
101      nv50->base.pushbuf->kick_notify = NULL;
102      nv50_context_screen(nv50)->cur_ctx = NULL;
103      nouveau_pushbuf_bufctx(nv50->base.pushbuf, NULL);
104   }
105   /* need to flush before destroying the bufctx */
106   nouveau_pushbuf_kick(nv50->base.pushbuf, nv50->base.pushbuf->channel);
107
108   nv50_context_unreference_resources(nv50);
109
110#ifdef NV50_WITH_DRAW_MODULE
111   draw_destroy(nv50->draw);
112#endif
113
114   nouveau_context_destroy(&nv50->base);
115}
116
117struct pipe_context *
118nv50_create(struct pipe_screen *pscreen, void *priv)
119{
120   struct nv50_screen *screen = nv50_screen(pscreen);
121   struct nv50_context *nv50;
122   struct pipe_context *pipe;
123   int ret;
124   uint32_t flags;
125
126   nv50 = CALLOC_STRUCT(nv50_context);
127   if (!nv50)
128      return NULL;
129   pipe = &nv50->base.pipe;
130
131   nv50->base.pushbuf = screen->base.pushbuf;
132
133   ret = nouveau_bufctx_new(screen->base.client, NV50_BIND_COUNT,
134                            &nv50->bufctx_3d);
135   if (!ret)
136      ret = nouveau_bufctx_new(screen->base.client, 2, &nv50->bufctx);
137   if (ret)
138      goto out_err;
139
140   nv50->base.screen    = &screen->base;
141   nv50->base.copy_data = nv50_m2mf_copy_linear;
142   nv50->base.push_data = nv50_sifc_linear_u8;
143   nv50->base.push_cb   = nv50_cb_push;
144
145   nv50->screen = screen;
146   pipe->screen = pscreen;
147   pipe->priv = priv;
148
149   pipe->destroy = nv50_destroy;
150
151   pipe->draw_vbo = nv50_draw_vbo;
152   pipe->clear = nv50_clear;
153
154   pipe->flush = nv50_flush;
155   pipe->texture_barrier = nv50_texture_barrier;
156
157   if (!screen->cur_ctx) {
158      screen->cur_ctx = nv50;
159      nouveau_pushbuf_bufctx(screen->base.pushbuf, nv50->bufctx);
160   }
161
162   nv50_init_query_functions(nv50);
163   nv50_init_surface_functions(nv50);
164   nv50_init_state_functions(nv50);
165   nv50_init_resource_functions(pipe);
166
167#ifdef NV50_WITH_DRAW_MODULE
168   /* no software fallbacks implemented */
169   nv50->draw = draw_create(pipe);
170   assert(nv50->draw);
171   draw_set_rasterize_stage(nv50->draw, nv50_draw_render_stage(nv50));
172#endif
173
174   nouveau_context_init_vdec(&nv50->base);
175
176   flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_RD;
177
178   BCTX_REFN_bo(nv50->bufctx_3d, SCREEN, flags, screen->code);
179   BCTX_REFN_bo(nv50->bufctx_3d, SCREEN, flags, screen->uniforms);
180   BCTX_REFN_bo(nv50->bufctx_3d, SCREEN, flags, screen->txc);
181   BCTX_REFN_bo(nv50->bufctx_3d, SCREEN, flags, screen->stack_bo);
182
183   flags = NOUVEAU_BO_GART | NOUVEAU_BO_WR;
184
185   BCTX_REFN_bo(nv50->bufctx_3d, SCREEN, flags, screen->fence.bo);
186   BCTX_REFN_bo(nv50->bufctx, FENCE, flags, screen->fence.bo);
187
188   nv50->base.scratch.bo_size = 2 << 20;
189
190   return pipe;
191
192out_err:
193   if (nv50) {
194      if (nv50->bufctx_3d)
195         nouveau_bufctx_del(&nv50->bufctx_3d);
196      if (nv50->bufctx)
197         nouveau_bufctx_del(&nv50->bufctx);
198      FREE(nv50);
199   }
200   return NULL;
201}
202
203void
204nv50_bufctx_fence(struct nouveau_bufctx *bufctx, boolean on_flush)
205{
206   struct nouveau_list *list = on_flush ? &bufctx->current : &bufctx->pending;
207   struct nouveau_list *it;
208
209   for (it = list->next; it != list; it = it->next) {
210      struct nouveau_bufref *ref = (struct nouveau_bufref *)it;
211      struct nv04_resource *res = ref->priv;
212      if (res)
213         nv50_resource_validate(res, (unsigned)ref->priv_data);
214   }
215}
216