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    }
  45
  46    if (fence) {
  47       nvc0_screen_fence_new(nvc0->screen, (struct nvc0_fence **)fence, TRUE);
  48    }
  49
  50    if (flags & (PIPE_FLUSH_SWAPBUFFERS | PIPE_FLUSH_FRAME)) {
  51       FIRE_RING(chan);
  52
  53       nvc0_screen_fence_next(nvc0->screen);
  54    }
  55 }
  56
  57 static void
  58 nvc0_destroy(struct pipe_context *pipe)
  59 {
  60    struct nvc0_context *nvc0 = nvc0_context(pipe);
  61
  62    draw_destroy(nvc0->draw);
  63
  64    if (nvc0->screen->cur_ctx == nvc0)
  65       nvc0->screen->cur_ctx = NULL;
  66
  67    FREE(nvc0);
  68 }
  69
  70 struct pipe_context *
  71 nvc0_create(struct pipe_screen *pscreen, void *priv)
  72 {
  73    struct pipe_winsys *pipe_winsys = pscreen->winsys;
  74    struct nvc0_screen *screen = nvc0_screen(pscreen);
  75    struct nvc0_context *nvc0;
  76
  77    nvc0 = CALLOC_STRUCT(nvc0_context);
  78    if (!nvc0)
  79       return NULL;
  80    nvc0->screen = screen;
  81
  82    nvc0->pipe.winsys = pipe_winsys;
  83    nvc0->pipe.screen = pscreen;
  84    nvc0->pipe.priv = priv;
  85
  86    nvc0->pipe.destroy = nvc0_destroy;
  87
  88    nvc0->pipe.draw_vbo = nvc0_draw_vbo;
  89    nvc0->pipe.clear = nvc0_clear;
  90
  91    nvc0->pipe.flush = nvc0_flush;
  92
  93    screen->base.channel->user_private = nvc0;
  94
  95    nvc0_init_query_functions(nvc0);
  96    nvc0_init_surface_functions(nvc0);
  97    nvc0_init_state_functions(nvc0);
  98    nvc0_init_resource_functions(&nvc0->pipe);
  99
 100    nvc0->draw = draw_create(&nvc0->pipe);
 101    assert(nvc0->draw);
 102    draw_set_rasterize_stage(nvc0->draw, nvc0_draw_render_stage(nvc0));
 103
 104    return &nvc0->pipe;
 105 }
 106
 107 struct resident {
 108    struct nvc0_resource *res;
 109    uint32_t flags;
 110 };
 111
 112 void
 113 nvc0_bufctx_add_resident(struct nvc0_context *nvc0, int ctx,
 114                          struct nvc0_resource *resource, uint32_t flags)
 115 {
 116    struct resident rsd = { resource, flags };
 117
 118    if (!resource->bo)
 119       return;
 120
 121    /* We don't need to reference the resource here, it will be referenced
 122     * in the context/state, and bufctx will be reset when state changes.
 123     */
 124    util_dynarray_append(&nvc0->residents[ctx], struct resident, rsd);
 125 }
 126
 127 void
 128 nvc0_bufctx_del_resident(struct nvc0_context *nvc0, int ctx,
 129                          struct nvc0_resource *resource)
 130 {
 131    struct resident *rsd, *top;
 132    unsigned i;
 133
 134    for (i = 0; i < nvc0->residents[ctx].size / sizeof(struct resident); ++i) {
 135       rsd = util_dynarray_element(&nvc0->residents[ctx], struct resident, i);
 136
 137       if (rsd->res == resource) {
 138          top = util_dynarray_pop_ptr(&nvc0->residents[ctx], struct resident);
 139          if (rsd != top)
 140             *rsd = *top;
 141          break;
 142       }
 143    }
 144 }
 145
 146 void
 147 nvc0_bufctx_emit_relocs(struct nvc0_context *nvc0)
 148 {
 149    struct resident *rsd;
 150    struct util_dynarray *array;
 151    unsigned ctx, i;
 152
 153    for (ctx = 0; ctx < NVC0_BUFCTX_COUNT; ++ctx) {
 154       array = &nvc0->residents[ctx];
 155
 156       for (i = 0; i < array->size / sizeof(struct resident); ++i) {
 157          rsd = util_dynarray_element(array, struct resident, i);
 158
 159          nvc0_resource_validate(rsd->res, rsd->flags);
 160       }
 161    }
 162
 163    nvc0_screen_make_buffers_resident(nvc0->screen);
 164 }