src/gallium/drivers/nv50/nv50_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 "nv50_context.h"
  27 #include "nv50_screen.h"
  28 #include "nv50_resource.h"
  29
  30 #include "nouveau/nouveau_reloc.h"
  31
  32 static void
  33 nv50_flush(struct pipe_context *pipe,
  34            struct pipe_fence_handle **fence)
  35 {
  36    struct nouveau_screen *screen = &nv50_context(pipe)->screen->base;
  37
  38    if (fence)
  39       nouveau_fence_ref(screen->fence.current, (struct nouveau_fence **)fence);
  40
  41    /* Try to emit before firing to avoid having to flush again right after
  42     * in case we have to wait on this fence.
  43     */
  44    nouveau_fence_emit(screen->fence.current);
  45
  46    FIRE_RING(screen->channel);
  47 }
  48
  49 void
  50 nv50_default_flush_notify(struct nouveau_channel *chan)
  51 {
  52    struct nv50_context *nv50 = chan->user_private;
  53
  54    if (!nv50)
  55       return;
  56
  57    nouveau_fence_update(&nv50->screen->base, TRUE);
  58    nouveau_fence_next(&nv50->screen->base);
  59 }
  60
  61 static void
  62 nv50_context_unreference_resources(struct nv50_context *nv50)
  63 {
  64    unsigned s, i;
  65
  66    for (i = 0; i < NV50_BUFCTX_COUNT; ++i)
  67       nv50_bufctx_reset(nv50, i);
  68
  69    for (i = 0; i < nv50->num_vtxbufs; ++i)
  70       pipe_resource_reference(&nv50->vtxbuf[i].buffer, NULL);
  71
  72    pipe_resource_reference(&nv50->idxbuf.buffer, NULL);
  73
  74    for (s = 0; s < 3; ++s) {
  75       for (i = 0; i < nv50->num_textures[s]; ++i)
  76          pipe_sampler_view_reference(&nv50->textures[s][i], NULL);
  77
  78       for (i = 0; i < 16; ++i)
  79          pipe_resource_reference(&nv50->constbuf[s][i], NULL);
  80    }
  81 }
  82
  83 static void
  84 nv50_destroy(struct pipe_context *pipe)
  85 {
  86    struct nv50_context *nv50 = nv50_context(pipe);
  87
  88    nv50_context_unreference_resources(nv50);
  89
  90    draw_destroy(nv50->draw);
  91
  92    if (nv50->screen->cur_ctx == nv50) {
  93       nv50->screen->base.channel->user_private = NULL;
  94       nv50->screen->cur_ctx = NULL;
  95    }
  96
  97    FREE(nv50);
  98 }
  99
 100 struct pipe_context *
 101 nv50_create(struct pipe_screen *pscreen, void *priv)
 102 {
 103    struct pipe_winsys *pipe_winsys = pscreen->winsys;
 104    struct nv50_screen *screen = nv50_screen(pscreen);
 105    struct nv50_context *nv50;
 106    struct pipe_context *pipe;
 107
 108    nv50 = CALLOC_STRUCT(nv50_context);
 109    if (!nv50)
 110       return NULL;
 111    pipe = &nv50->base.pipe;
 112
 113    nv50->screen = screen;
 114    nv50->base.screen    = &screen->base;
 115    nv50->base.copy_data = nv50_m2mf_copy_linear;
 116    nv50->base.push_data = nv50_sifc_linear_u8;
 117
 118    pipe->winsys = pipe_winsys;
 119    pipe->screen = pscreen;
 120    pipe->priv = priv;
 121
 122    pipe->destroy = nv50_destroy;
 123
 124    pipe->draw_vbo = nv50_draw_vbo;
 125    pipe->clear = nv50_clear;
 126
 127    pipe->flush = nv50_flush;
 128
 129    if (!screen->cur_ctx)
 130       screen->cur_ctx = nv50;
 131    screen->base.channel->user_private = nv50;
 132    screen->base.channel->flush_notify = nv50_default_flush_notify;
 133
 134    nv50_init_query_functions(nv50);
 135    nv50_init_surface_functions(nv50);
 136    nv50_init_state_functions(nv50);
 137    nv50_init_resource_functions(pipe);
 138
 139    nv50->draw = draw_create(pipe);
 140    assert(nv50->draw);
 141    draw_set_rasterize_stage(nv50->draw, nv50_draw_render_stage(nv50));
 142
 143    return pipe;
 144 }
 145
 146 struct resident {
 147    struct nv04_resource *res;
 148    uint32_t flags;
 149 };
 150
 151 void
 152 nv50_bufctx_add_resident(struct nv50_context *nv50, int ctx,
 153                          struct nv04_resource *resource, uint32_t flags)
 154 {
 155    struct resident rsd = { resource, flags };
 156
 157    if (!resource->bo)
 158       return;
 159
 160    /* We don't need to reference the resource here, it will be referenced
 161     * in the context/state, and bufctx will be reset when state changes.
 162     */
 163    util_dynarray_append(&nv50->residents[ctx], struct resident, rsd);
 164 }
 165
 166 void
 167 nv50_bufctx_del_resident(struct nv50_context *nv50, int ctx,
 168                          struct nv04_resource *resource)
 169 {
 170    struct resident *rsd, *top;
 171    unsigned i;
 172
 173    for (i = 0; i < nv50->residents[ctx].size / sizeof(struct resident); ++i) {
 174       rsd = util_dynarray_element(&nv50->residents[ctx], struct resident, i);
 175
 176       if (rsd->res == resource) {
 177          top = util_dynarray_pop_ptr(&nv50->residents[ctx], struct resident);
 178          if (rsd != top)
 179             *rsd = *top;
 180          break;
 181       }
 182    }
 183 }
 184
 185 void
 186 nv50_bufctx_emit_relocs(struct nv50_context *nv50)
 187 {
 188    struct resident *rsd;
 189    struct util_dynarray *array;
 190    unsigned ctx, i, n;
 191
 192    for (ctx = 0; ctx < NV50_BUFCTX_COUNT; ++ctx) {
 193       array = &nv50->residents[ctx];
 194
 195       n = array->size / sizeof(struct resident);
 196       MARK_RING(nv50->screen->base.channel, n, n);
 197       for (i = 0; i < n; ++i) {
 198          rsd = util_dynarray_element(array, struct resident, i);
 199
 200          nv50_resource_validate(rsd->res, rsd->flags);
 201       }
 202    }
 203
 204    nv50_screen_make_buffers_resident(nv50->screen);
 205 }