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 NVC0_WITH_DRAW_MODULE
27#include "draw/draw_context.h"
28#endif
29
30#include "nvc0_context.h"
31#include "nvc0_screen.h"
32#include "nvc0_resource.h"
33
34static void
35nvc0_flush(struct pipe_context *pipe,
36           struct pipe_fence_handle **fence)
37{
38   struct nvc0_context *nvc0 = nvc0_context(pipe);
39   struct nouveau_screen *screen = &nvc0->screen->base;
40
41   if (fence)
42      nouveau_fence_ref(screen->fence.current, (struct nouveau_fence **)fence);
43
44   PUSH_KICK(nvc0->base.pushbuf); /* fencing handled in kick_notify */
45}
46
47static void
48nvc0_texture_barrier(struct pipe_context *pipe)
49{
50   struct nouveau_pushbuf *push = nvc0_context(pipe)->base.pushbuf;
51
52   IMMED_NVC0(push, NVC0_3D(SERIALIZE), 0);
53   IMMED_NVC0(push, NVC0_3D(TEX_CACHE_CTL), 0);
54}
55
56static void
57nvc0_context_unreference_resources(struct nvc0_context *nvc0)
58{
59   unsigned s, i;
60
61   nouveau_bufctx_del(&nvc0->bufctx_3d);
62   nouveau_bufctx_del(&nvc0->bufctx);
63
64   util_unreference_framebuffer_state(&nvc0->framebuffer);
65
66   for (i = 0; i < nvc0->num_vtxbufs; ++i)
67      pipe_resource_reference(&nvc0->vtxbuf[i].buffer, NULL);
68
69   pipe_resource_reference(&nvc0->idxbuf.buffer, NULL);
70
71   for (s = 0; s < 5; ++s) {
72      for (i = 0; i < nvc0->num_textures[s]; ++i)
73         pipe_sampler_view_reference(&nvc0->textures[s][i], NULL);
74
75      for (i = 0; i < NVC0_MAX_PIPE_CONSTBUFS; ++i)
76         if (!nvc0->constbuf[s][i].user)
77            pipe_resource_reference(&nvc0->constbuf[s][i].u.buf, NULL);
78   }
79
80   for (i = 0; i < nvc0->num_tfbbufs; ++i)
81      pipe_so_target_reference(&nvc0->tfbbuf[i], NULL);
82}
83
84static void
85nvc0_destroy(struct pipe_context *pipe)
86{
87   struct nvc0_context *nvc0 = nvc0_context(pipe);
88
89   if (nvc0->screen->cur_ctx == nvc0) {
90      nvc0->base.pushbuf->kick_notify = NULL;
91      nvc0->screen->cur_ctx = NULL;
92      nouveau_pushbuf_bufctx(nvc0->base.pushbuf, NULL);
93   }
94   nouveau_pushbuf_kick(nvc0->base.pushbuf, nvc0->base.pushbuf->channel);
95
96   nvc0_context_unreference_resources(nvc0);
97
98#ifdef NVC0_WITH_DRAW_MODULE
99   draw_destroy(nvc0->draw);
100#endif
101
102   nouveau_context_destroy(&nvc0->base);
103}
104
105void
106nvc0_default_kick_notify(struct nouveau_pushbuf *push)
107{
108   struct nvc0_screen *screen = push->user_priv;
109
110   if (screen) {
111      nouveau_fence_next(&screen->base);
112      nouveau_fence_update(&screen->base, TRUE);
113      if (screen->cur_ctx)
114         screen->cur_ctx->state.flushed = TRUE;
115   }
116}
117
118struct pipe_context *
119nvc0_create(struct pipe_screen *pscreen, void *priv)
120{
121   struct nvc0_screen *screen = nvc0_screen(pscreen);
122   struct nvc0_context *nvc0;
123   struct pipe_context *pipe;
124   int ret;
125   uint32_t flags;
126
127   nvc0 = CALLOC_STRUCT(nvc0_context);
128   if (!nvc0)
129      return NULL;
130   pipe = &nvc0->base.pipe;
131
132   nvc0->base.pushbuf = screen->base.pushbuf;
133
134   ret = nouveau_bufctx_new(screen->base.client, NVC0_BIND_COUNT,
135                            &nvc0->bufctx_3d);
136   if (!ret)
137      nouveau_bufctx_new(screen->base.client, 2, &nvc0->bufctx);
138   if (ret)
139      goto out_err;
140
141   nvc0->screen = screen;
142   nvc0->base.screen = &screen->base;
143
144   pipe->screen = pscreen;
145   pipe->priv = priv;
146
147   pipe->destroy = nvc0_destroy;
148
149   pipe->draw_vbo = nvc0_draw_vbo;
150   pipe->clear = nvc0_clear;
151
152   pipe->flush = nvc0_flush;
153   pipe->texture_barrier = nvc0_texture_barrier;
154
155   if (!screen->cur_ctx) {
156      screen->cur_ctx = nvc0;
157      nouveau_pushbuf_bufctx(screen->base.pushbuf, nvc0->bufctx);
158   }
159   screen->base.pushbuf->kick_notify = nvc0_default_kick_notify;
160
161   nvc0_init_query_functions(nvc0);
162   nvc0_init_surface_functions(nvc0);
163   nvc0_init_state_functions(nvc0);
164   nvc0_init_transfer_functions(nvc0);
165   nvc0_init_resource_functions(pipe);
166
167#ifdef NVC0_WITH_DRAW_MODULE
168   /* no software fallbacks implemented */
169   nvc0->draw = draw_create(pipe);
170   assert(nvc0->draw);
171   draw_set_rasterize_stage(nvc0->draw, nvc0_draw_render_stage(nvc0));
172#endif
173
174   nouveau_context_init_vdec(&nvc0->base);
175
176   /* shader builtin library is per-screen, but we need a context for m2mf */
177   nvc0_program_library_upload(nvc0);
178
179   /* add permanently resident buffers to bufctxts */
180
181   flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_RD;
182
183   BCTX_REFN_bo(nvc0->bufctx_3d, SCREEN, flags, screen->text);
184   BCTX_REFN_bo(nvc0->bufctx_3d, SCREEN, flags, screen->uniform_bo);
185   BCTX_REFN_bo(nvc0->bufctx_3d, SCREEN, flags, screen->txc);
186   BCTX_REFN_bo(nvc0->bufctx_3d, SCREEN, flags, screen->poly_cache);
187
188   flags = NOUVEAU_BO_GART | NOUVEAU_BO_WR;
189
190   BCTX_REFN_bo(nvc0->bufctx_3d, SCREEN, flags, screen->fence.bo);
191   BCTX_REFN_bo(nvc0->bufctx, FENCE, flags, screen->fence.bo);
192
193   nvc0->base.scratch.bo_size = 2 << 20;
194
195   return pipe;
196
197out_err:
198   if (nvc0) {
199      if (nvc0->bufctx_3d)
200         nouveau_bufctx_del(&nvc0->bufctx_3d);
201      if (nvc0->bufctx)
202         nouveau_bufctx_del(&nvc0->bufctx);
203      FREE(nvc0);
204   }
205   return NULL;
206}
207
208void
209nvc0_bufctx_fence(struct nvc0_context *nvc0, struct nouveau_bufctx *bufctx,
210                  boolean on_flush)
211{
212   struct nouveau_list *list = on_flush ? &bufctx->current : &bufctx->pending;
213   struct nouveau_list *it;
214
215   for (it = list->next; it != list; it = it->next) {
216      struct nouveau_bufref *ref = (struct nouveau_bufref *)it;
217      struct nv04_resource *res = ref->priv;
218      if (res)
219         nvc0_resource_validate(res, (unsigned)ref->priv_data);
220   }
221}
222