src/gallium/drivers/nvc0/nvc0_context.c

   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 "draw/draw_context.h"
  24 #include "pipe/p_defines.h"
  25
  26 #include "nvc0_context.h"
  27 #include "nvc0_screen.h"
  28 #include "nvc0_resource.h"
  29
  30 #include "nouveau/nouveau_reloc.h"
  31
  32 static void
  33 nvc0_flush(struct pipe_context *pipe, unsigned flags,
  34            struct pipe_fence_handle **fence)
  35 {
  36    struct nvc0_context *nvc0 = nvc0_context(pipe);
  37    struct nouveau_channel *chan = nvc0->screen->base.channel;
  38
  39    if (flags & PIPE_FLUSH_TEXTURE_CACHE) {
  40       BEGIN_RING(chan, RING_3D(SERIALIZE), 1);
  41       OUT_RING  (chan, 0);
  42       BEGIN_RING(chan, RING_3D(TEX_CACHE_CTL), 1);
  43       OUT_RING  (chan, 0x00);
  44    } else
  45    if ((flags & PIPE_FLUSH_RENDER_CACHE) && !(flags & PIPE_FLUSH_FRAME)) {
  46       BEGIN_RING(chan, RING_3D(SERIALIZE), 1);
  47       OUT_RING  (chan, 0);
  48    }
  49
  50    if (fence)
  51       nvc0_fence_reference((struct nvc0_fence **)fence,
  52                            nvc0->screen->fence.current);
  53
  54    if (flags & (PIPE_FLUSH_SWAPBUFFERS | PIPE_FLUSH_FRAME))
  55       FIRE_RING(chan);
  56 }
  57
  58 static void
  59 nvc0_destroy(struct pipe_context *pipe)
  60 {
  61    struct nvc0_context *nvc0 = nvc0_context(pipe);
  62
  63    draw_destroy(nvc0->draw);
  64
  65    if (nvc0->screen->cur_ctx == nvc0)
  66       nvc0->screen->cur_ctx = NULL;
  67
  68    FREE(nvc0);
  69 }
  70
  71 void
  72 nvc0_default_flush_notify(struct nouveau_channel *chan)
  73 {
  74    struct nvc0_context *nvc0 = chan->user_private;
  75
  76    nvc0_screen_fence_update(nvc0->screen, TRUE);
  77
  78    nvc0_screen_fence_next(nvc0->screen);
  79 }
  80
  81 struct pipe_context *
  82 nvc0_create(struct pipe_screen *pscreen, void *priv)
  83 {
  84    struct pipe_winsys *pipe_winsys = pscreen->winsys;
  85    struct nvc0_screen *screen = nvc0_screen(pscreen);
  86    struct nvc0_context *nvc0;
  87
  88    nvc0 = CALLOC_STRUCT(nvc0_context);
  89    if (!nvc0)
  90       return NULL;
  91    nvc0->screen = screen;
  92
  93    nvc0->pipe.winsys = pipe_winsys;
  94    nvc0->pipe.screen = pscreen;
  95    nvc0->pipe.priv = priv;
  96
  97    nvc0->pipe.destroy = nvc0_destroy;
  98
  99    nvc0->pipe.draw_vbo = nvc0_draw_vbo;
 100    nvc0->pipe.clear = nvc0_clear;
 101
 102    nvc0->pipe.flush = nvc0_flush;
 103
 104    if (!screen->cur_ctx)
 105       screen->cur_ctx = nvc0;
 106    screen->base.channel->user_private = nvc0;
 107    screen->base.channel->flush_notify = nvc0_default_flush_notify;
 108
 109    nvc0_init_query_functions(nvc0);
 110    nvc0_init_surface_functions(nvc0);
 111    nvc0_init_state_functions(nvc0);
 112    nvc0_init_resource_functions(&nvc0->pipe);
 113
 114    nvc0->draw = draw_create(&nvc0->pipe);
 115    assert(nvc0->draw);
 116    draw_set_rasterize_stage(nvc0->draw, nvc0_draw_render_stage(nvc0));
 117
 118    return &nvc0->pipe;
 119 }
 120
 121 struct resident {
 122    struct nvc0_resource *res;
 123    uint32_t flags;
 124 };
 125
 126 void
 127 nvc0_bufctx_add_resident(struct nvc0_context *nvc0, int ctx,
 128                          struct nvc0_resource *resource, uint32_t flags)
 129 {
 130    struct resident rsd = { resource, flags };
 131
 132    if (!resource->bo)
 133       return;
 134
 135    /* We don't need to reference the resource here, it will be referenced
 136     * in the context/state, and bufctx will be reset when state changes.
 137     */
 138    util_dynarray_append(&nvc0->residents[ctx], struct resident, rsd);
 139 }
 140
 141 void
 142 nvc0_bufctx_del_resident(struct nvc0_context *nvc0, int ctx,
 143                          struct nvc0_resource *resource)
 144 {
 145    struct resident *rsd, *top;
 146    unsigned i;
 147
 148    for (i = 0; i < nvc0->residents[ctx].size / sizeof(struct resident); ++i) {
 149       rsd = util_dynarray_element(&nvc0->residents[ctx], struct resident, i);
 150
 151       if (rsd->res == resource) {
 152          top = util_dynarray_pop_ptr(&nvc0->residents[ctx], struct resident);
 153          if (rsd != top)
 154             *rsd = *top;
 155          break;
 156       }
 157    }
 158 }
 159
 160 void
 161 nvc0_bufctx_emit_relocs(struct nvc0_context *nvc0)
 162 {
 163    struct resident *rsd;
 164    struct util_dynarray *array;
 165    unsigned ctx, i, n;
 166
 167    for (ctx = 0; ctx < NVC0_BUFCTX_COUNT; ++ctx) {
 168       array = &nvc0->residents[ctx];
 169
 170       n = array->size / sizeof(struct resident);
 171       MARK_RING(nvc0->screen->base.channel, n, n);
 172       for (i = 0; i < n; ++i) {
 173          rsd = util_dynarray_element(array, struct resident, i);
 174
 175          nvc0_resource_validate(rsd->res, rsd->flags);
 176       }
 177    }
 178
 179    nvc0_screen_make_buffers_resident(nvc0->screen);
 180 }