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 static void
  50 nv50_texture_barrier(struct pipe_context *pipe)
  51 {
  52    struct nouveau_channel *chan = nv50_context(pipe)->screen->base.channel;
  53
  54    BEGIN_RING(chan, RING_3D(SERIALIZE), 1);
  55    OUT_RING  (chan, 0);
  56    BEGIN_RING(chan, RING_3D(TEX_CACHE_CTL), 1);
  57    OUT_RING  (chan, 0x20);
  58 }
  59
  60 void
  61 nv50_default_flush_notify(struct nouveau_channel *chan)
  62 {
  63    struct nv50_context *nv50 = chan->user_private;
  64
  65    if (!nv50)
  66       return;
  67
  68    nouveau_fence_update(&nv50->screen->base, TRUE);
  69    nouveau_fence_next(&nv50->screen->base);
  70 }
  71
  72 static void
  73 nv50_context_unreference_resources(struct nv50_context *nv50)
  74 {
  75    unsigned s, i;
  76
  77    for (i = 0; i < NV50_BUFCTX_COUNT; ++i)
  78       nv50_bufctx_reset(nv50, i);
  79
  80    for (i = 0; i < nv50->num_vtxbufs; ++i)
  81       pipe_resource_reference(&nv50->vtxbuf[i].buffer, NULL);
  82
  83    pipe_resource_reference(&nv50->idxbuf.buffer, NULL);
  84
  85    for (s = 0; s < 3; ++s) {
  86       for (i = 0; i < nv50->num_textures[s]; ++i)
  87          pipe_sampler_view_reference(&nv50->textures[s][i], NULL);
  88
  89       for (i = 0; i < 16; ++i)
  90          pipe_resource_reference(&nv50->constbuf[s][i], NULL);
  91    }
  92 }
  93
  94 static void
  95 nv50_destroy(struct pipe_context *pipe)
  96 {
  97    struct nv50_context *nv50 = nv50_context(pipe);
  98
  99    nv50_context_unreference_resources(nv50);
 100
 101    draw_destroy(nv50->draw);
 102
 103    if (nv50->screen->cur_ctx == nv50) {
 104       nv50->screen->base.channel->user_private = NULL;
 105       nv50->screen->cur_ctx = NULL;
 106    }
 107
 108    FREE(nv50);
 109 }
 110
 111 struct pipe_context *
 112 nv50_create(struct pipe_screen *pscreen, void *priv)
 113 {
 114    struct pipe_winsys *pipe_winsys = pscreen->winsys;
 115    struct nv50_screen *screen = nv50_screen(pscreen);
 116    struct nv50_context *nv50;
 117    struct pipe_context *pipe;
 118
 119    nv50 = CALLOC_STRUCT(nv50_context);
 120    if (!nv50)
 121       return NULL;
 122    pipe = &nv50->base.pipe;
 123
 124    nv50->screen = screen;
 125    nv50->base.screen    = &screen->base;
 126    nv50->base.copy_data = nv50_m2mf_copy_linear;
 127    nv50->base.push_data = nv50_sifc_linear_u8;
 128
 129    pipe->winsys = pipe_winsys;
 130    pipe->screen = pscreen;
 131    pipe->priv = priv;
 132
 133    pipe->destroy = nv50_destroy;
 134
 135    pipe->draw_vbo = nv50_draw_vbo;
 136    pipe->clear = nv50_clear;
 137
 138    pipe->flush = nv50_flush;
 139    pipe->texture_barrier = nv50_texture_barrier;
 140
 141    if (!screen->cur_ctx)
 142       screen->cur_ctx = nv50;
 143    screen->base.channel->user_private = nv50;
 144    screen->base.channel->flush_notify = nv50_default_flush_notify;
 145
 146    nv50_init_query_functions(nv50);
 147    nv50_init_surface_functions(nv50);
 148    nv50_init_state_functions(nv50);
 149    nv50_init_resource_functions(pipe);
 150
 151    nv50->draw = draw_create(pipe);
 152    assert(nv50->draw);
 153    draw_set_rasterize_stage(nv50->draw, nv50_draw_render_stage(nv50));
 154
 155    return pipe;
 156 }
 157
 158 struct resident {
 159    struct nv04_resource *res;
 160    uint32_t flags;
 161 };
 162
 163 void
 164 nv50_bufctx_add_resident(struct nv50_context *nv50, int ctx,
 165                          struct nv04_resource *resource, uint32_t flags)
 166 {
 167    struct resident rsd = { resource, flags };
 168
 169    if (!resource->bo)
 170       return;
 171    nv50->residents_size += sizeof(struct resident);
 172
 173    /* We don't need to reference the resource here, it will be referenced
 174     * in the context/state, and bufctx will be reset when state changes.
 175     */
 176    util_dynarray_append(&nv50->residents[ctx], struct resident, rsd);
 177 }
 178
 179 void
 180 nv50_bufctx_del_resident(struct nv50_context *nv50, int ctx,
 181                          struct nv04_resource *resource)
 182 {
 183    struct resident *rsd, *top;
 184    unsigned i;
 185
 186    for (i = 0; i < nv50->residents[ctx].size / sizeof(struct resident); ++i) {
 187       rsd = util_dynarray_element(&nv50->residents[ctx], struct resident, i);
 188
 189       if (rsd->res == resource) {
 190          top = util_dynarray_pop_ptr(&nv50->residents[ctx], struct resident);
 191          if (rsd != top)
 192             *rsd = *top;
 193          nv50->residents_size -= sizeof(struct resident);
 194          break;
 195       }
 196    }
 197 }
 198
 199 void
 200 nv50_bufctx_emit_relocs(struct nv50_context *nv50)
 201 {
 202    struct resident *rsd;
 203    struct util_dynarray *array;
 204    unsigned ctx, i, n;
 205
 206    n  = nv50->residents_size / sizeof(struct resident);
 207    n += NV50_SCREEN_RESIDENT_BO_COUNT;
 208
 209    MARK_RING(nv50->screen->base.channel, n, n);
 210
 211    for (ctx = 0; ctx < NV50_BUFCTX_COUNT; ++ctx) {
 212       array = &nv50->residents[ctx];
 213
 214       n = array->size / sizeof(struct resident);
 215       for (i = 0; i < n; ++i) {
 216          rsd = util_dynarray_element(array, struct resident, i);
 217
 218          nv50_resource_validate(rsd->res, rsd->flags);
 219       }
 220    }
 221
 222    nv50_screen_make_buffers_resident(nv50->screen);
 223 }