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,
  34            struct pipe_fence_handle **fence)
  35 {
  36    struct nouveau_screen *screen = &nvc0_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 static void
  50 nvc0_texture_barrier(struct pipe_context *pipe)
  51 {
  52    struct nouveau_channel *chan = nvc0_context(pipe)->screen->base.channel;
  53
  54    IMMED_RING(chan, RING_3D(SERIALIZE), 0);
  55    IMMED_RING(chan, RING_3D(TEX_CACHE_CTL), 0);
  56 }
  57
  58 static void
  59 nvc0_context_unreference_resources(struct nvc0_context *nvc0)
  60 {
  61    unsigned s, i;
  62
  63    for (i = 0; i < NVC0_BUFCTX_COUNT; ++i)
  64       nvc0_bufctx_reset(nvc0, i);
  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 < 16; ++i)
  76          pipe_resource_reference(&nvc0->constbuf[s][i], NULL);
  77    }
  78
  79    for (i = 0; i < nvc0->num_tfbbufs; ++i)
  80       pipe_resource_reference(&nvc0->tfbbuf[i], NULL);
  81 }
  82
  83 static void
  84 nvc0_destroy(struct pipe_context *pipe)
  85 {
  86    struct nvc0_context *nvc0 = nvc0_context(pipe);
  87
  88    nvc0_context_unreference_resources(nvc0);
  89
  90    draw_destroy(nvc0->draw);
  91
  92    if (nvc0->screen->cur_ctx == nvc0) {
  93       nvc0->screen->base.channel->user_private = NULL;
  94       nvc0->screen->cur_ctx = NULL;
  95    }
  96
  97    FREE(nvc0);
  98 }
  99
 100 void
 101 nvc0_default_flush_notify(struct nouveau_channel *chan)
 102 {
 103    struct nvc0_context *nvc0 = chan->user_private;
 104
 105    if (!nvc0)
 106       return;
 107
 108    nouveau_fence_update(&nvc0->screen->base, TRUE);
 109    nouveau_fence_next(&nvc0->screen->base);
 110 }
 111
 112 struct pipe_context *
 113 nvc0_create(struct pipe_screen *pscreen, void *priv)
 114 {
 115    struct pipe_winsys *pipe_winsys = pscreen->winsys;
 116    struct nvc0_screen *screen = nvc0_screen(pscreen);
 117    struct nvc0_context *nvc0;
 118    struct pipe_context *pipe;
 119
 120    nvc0 = CALLOC_STRUCT(nvc0_context);
 121    if (!nvc0)
 122       return NULL;
 123    pipe = &nvc0->base.pipe;
 124
 125    nvc0->screen = screen;
 126    nvc0->base.screen    = &screen->base;
 127    nvc0->base.copy_data = nvc0_m2mf_copy_linear;
 128    nvc0->base.push_data = nvc0_m2mf_push_linear;
 129
 130    pipe->winsys = pipe_winsys;
 131    pipe->screen = pscreen;
 132    pipe->priv = priv;
 133
 134    pipe->destroy = nvc0_destroy;
 135
 136    pipe->draw_vbo = nvc0_draw_vbo;
 137    pipe->clear = nvc0_clear;
 138
 139    pipe->flush = nvc0_flush;
 140    pipe->texture_barrier = nvc0_texture_barrier;
 141
 142    if (!screen->cur_ctx)
 143       screen->cur_ctx = nvc0;
 144    screen->base.channel->user_private = nvc0;
 145    screen->base.channel->flush_notify = nvc0_default_flush_notify;
 146
 147    nvc0_init_query_functions(nvc0);
 148    nvc0_init_surface_functions(nvc0);
 149    nvc0_init_state_functions(nvc0);
 150    nvc0_init_resource_functions(pipe);
 151
 152    nvc0->draw = draw_create(pipe);
 153    assert(nvc0->draw);
 154    draw_set_rasterize_stage(nvc0->draw, nvc0_draw_render_stage(nvc0));
 155
 156    return pipe;
 157 }
 158
 159 struct resident {
 160    struct nv04_resource *res;
 161    uint32_t flags;
 162 };
 163
 164 void
 165 nvc0_bufctx_add_resident(struct nvc0_context *nvc0, int ctx,
 166                          struct nv04_resource *resource, uint32_t flags)
 167 {
 168    struct resident rsd = { resource, flags };
 169
 170    if (!resource->bo)
 171       return;
 172    nvc0->residents_size += sizeof(struct resident);
 173
 174    /* We don't need to reference the resource here, it will be referenced
 175     * in the context/state, and bufctx will be reset when state changes.
 176     */
 177    util_dynarray_append(&nvc0->residents[ctx], struct resident, rsd);
 178 }
 179
 180 void
 181 nvc0_bufctx_del_resident(struct nvc0_context *nvc0, int ctx,
 182                          struct nv04_resource *resource)
 183 {
 184    struct resident *rsd, *top;
 185    unsigned i;
 186
 187    for (i = 0; i < nvc0->residents[ctx].size / sizeof(struct resident); ++i) {
 188       rsd = util_dynarray_element(&nvc0->residents[ctx], struct resident, i);
 189
 190       if (rsd->res == resource) {
 191          top = util_dynarray_pop_ptr(&nvc0->residents[ctx], struct resident);
 192          if (rsd != top)
 193             *rsd = *top;
 194          nvc0->residents_size -= sizeof(struct resident);
 195          break;
 196       }
 197    }
 198 }
 199
 200 void
 201 nvc0_bufctx_emit_relocs(struct nvc0_context *nvc0)
 202 {
 203    struct resident *rsd;
 204    struct util_dynarray *array;
 205    unsigned ctx, i, n;
 206
 207    n  = nvc0->residents_size / sizeof(struct resident);
 208    n += NVC0_SCREEN_RESIDENT_BO_COUNT;
 209
 210    MARK_RING(nvc0->screen->base.channel, n, n);
 211
 212    for (ctx = 0; ctx < NVC0_BUFCTX_COUNT; ++ctx) {
 213       array = &nvc0->residents[ctx];
 214
 215       n = array->size / sizeof(struct resident);
 216       for (i = 0; i < n; ++i) {
 217          rsd = util_dynarray_element(array, struct resident, i);
 218
 219          nvc0_resource_validate(rsd->res, rsd->flags);
 220       }
 221    }
 222
 223    nvc0_screen_make_buffers_resident(nvc0->screen);
 224 }