src/gallium/drivers/lima/lima_context.c

   1 /*
   2  * Copyright (c) 2017-2019 Lima Project
   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, sub license,
   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 (including the
  12  * next paragraph) shall be included in all copies or substantial portions
  13  * of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  *
  23  */
  24
  25 #include "util/u_memory.h"
  26 #include "util/u_blitter.h"
  27 #include "util/u_upload_mgr.h"
  28 #include "util/u_math.h"
  29 #include "util/u_debug.h"
  30 #include "util/ralloc.h"
  31 #include "util/u_inlines.h"
  32 #include "util/u_suballoc.h"
  33 #include "util/hash_table.h"
  34
  35 #include "lima_screen.h"
  36 #include "lima_context.h"
  37 #include "lima_resource.h"
  38 #include "lima_bo.h"
  39 #include "lima_submit.h"
  40 #include "lima_util.h"
  41 #include "lima_fence.h"
  42
  43 #include <drm-uapi/lima_drm.h>
  44 #include <xf86drm.h>
  45
  46 int lima_ctx_num_plb = LIMA_CTX_PLB_DEF_NUM;
  47
  48 uint32_t
  49 lima_ctx_buff_va(struct lima_context *ctx, enum lima_ctx_buff buff, unsigned submit)
  50 {
  51    struct lima_ctx_buff_state *cbs = ctx->buffer_state + buff;
  52    struct lima_resource *res = lima_resource(cbs->res);
  53
  54    if (submit & LIMA_CTX_BUFF_SUBMIT_GP)
  55       lima_submit_add_bo(ctx->gp_submit, res->bo, LIMA_SUBMIT_BO_READ);
  56    if (submit & LIMA_CTX_BUFF_SUBMIT_PP)
  57       lima_submit_add_bo(ctx->pp_submit, res->bo, LIMA_SUBMIT_BO_READ);
  58
  59    return res->bo->va + cbs->offset;
  60 }
  61
  62 void *
  63 lima_ctx_buff_map(struct lima_context *ctx, enum lima_ctx_buff buff)
  64 {
  65    struct lima_ctx_buff_state *cbs = ctx->buffer_state + buff;
  66    struct lima_resource *res = lima_resource(cbs->res);
  67
  68    return lima_bo_map(res->bo) + cbs->offset;
  69 }
  70
  71 void *
  72 lima_ctx_buff_alloc(struct lima_context *ctx, enum lima_ctx_buff buff,
  73                     unsigned size, bool uploader)
  74 {
  75    struct lima_ctx_buff_state *cbs = ctx->buffer_state + buff;
  76    void *ret = NULL;
  77
  78    cbs->size = align(size, 0x40);
  79
  80    if (uploader)
  81       u_upload_alloc(ctx->uploader, 0, cbs->size, 0x40, &cbs->offset,
  82                      &cbs->res, &ret);
  83    else
  84       u_suballocator_alloc(ctx->suballocator, cbs->size, 0x10,
  85                            &cbs->offset, &cbs->res);
  86
  87    return ret;
  88 }
  89
  90 static int
  91 lima_context_create_drm_ctx(struct lima_screen *screen)
  92 {
  93    struct drm_lima_ctx_create req = {0};
  94
  95    int ret = drmIoctl(screen->fd, DRM_IOCTL_LIMA_CTX_CREATE, &req);
  96    if (ret)
  97       return errno;
  98
  99    return req.id;
 100 }
 101
 102 static void
 103 lima_context_free_drm_ctx(struct lima_screen *screen, int id)
 104 {
 105    struct drm_lima_ctx_free req = {
 106       .id = id,
 107    };
 108
 109    drmIoctl(screen->fd, DRM_IOCTL_LIMA_CTX_FREE, &req);
 110 }
 111
 112 static void
 113 lima_context_destroy(struct pipe_context *pctx)
 114 {
 115    struct lima_context *ctx = lima_context(pctx);
 116    struct lima_screen *screen = lima_screen(pctx->screen);
 117
 118    if (ctx->pp_submit)
 119       lima_submit_free(ctx->pp_submit);
 120    if (ctx->gp_submit)
 121       lima_submit_free(ctx->gp_submit);
 122
 123    for (int i = 0; i < lima_ctx_buff_num; i++)
 124       pipe_resource_reference(&ctx->buffer_state[i].res, NULL);
 125
 126    lima_state_fini(ctx);
 127
 128    if (ctx->blitter)
 129       util_blitter_destroy(ctx->blitter);
 130
 131    if (ctx->suballocator)
 132       u_suballocator_destroy(ctx->suballocator);
 133
 134    if (ctx->uploader)
 135       u_upload_destroy(ctx->uploader);
 136
 137    slab_destroy_child(&ctx->transfer_pool);
 138
 139    for (int i = 0; i < LIMA_CTX_PLB_MAX_NUM; i++) {
 140       if (ctx->plb[i])
 141          lima_bo_unreference(ctx->plb[i]);
 142       if (ctx->gp_tile_heap[i])
 143          lima_bo_unreference(ctx->gp_tile_heap[i]);
 144    }
 145
 146    if (ctx->plb_gp_stream)
 147       lima_bo_unreference(ctx->plb_gp_stream);
 148
 149    if (ctx->gp_output)
 150       lima_bo_unreference(ctx->gp_output);
 151
 152    if (ctx->plb_pp_stream)
 153       assert(!_mesa_hash_table_num_entries(ctx->plb_pp_stream));
 154
 155    lima_context_free_drm_ctx(screen, ctx->id);
 156
 157    ralloc_free(ctx);
 158 }
 159
 160 static uint32_t
 161 plb_pp_stream_hash(const void *key)
 162 {
 163    return _mesa_hash_data(key, sizeof(struct lima_ctx_plb_pp_stream_key));
 164 }
 165
 166 static bool
 167 plb_pp_stream_compare(const void *key1, const void *key2)
 168 {
 169    return memcmp(key1, key2, sizeof(struct lima_ctx_plb_pp_stream_key)) == 0;
 170 }
 171
 172 static void
 173 lima_set_debug_callback(struct pipe_context *pctx,
 174                         const struct pipe_debug_callback *cb)
 175 {
 176    struct lima_context *ctx = lima_context(pctx);
 177
 178    if (cb)
 179       ctx->debug = *cb;
 180    else
 181       memset(&ctx->debug, 0, sizeof(ctx->debug));
 182 }
 183
 184 struct pipe_context *
 185 lima_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags)
 186 {
 187    struct lima_screen *screen = lima_screen(pscreen);
 188    struct lima_context *ctx;
 189
 190    ctx = rzalloc(screen, struct lima_context);
 191    if (!ctx)
 192       return NULL;
 193
 194    ctx->id = lima_context_create_drm_ctx(screen);
 195    if (ctx->id < 0) {
 196       ralloc_free(ctx);
 197       return NULL;
 198    }
 199
 200    ctx->base.screen = pscreen;
 201    ctx->base.destroy = lima_context_destroy;
 202    ctx->base.set_debug_callback = lima_set_debug_callback;
 203
 204    lima_resource_context_init(ctx);
 205    lima_fence_context_init(ctx);
 206    lima_state_init(ctx);
 207    lima_draw_init(ctx);
 208    lima_program_init(ctx);
 209    lima_query_init(ctx);
 210
 211    slab_create_child(&ctx->transfer_pool, &screen->transfer_pool);
 212
 213    ctx->blitter = util_blitter_create(&ctx->base);
 214    if (!ctx->blitter)
 215       goto err_out;
 216
 217    ctx->uploader = u_upload_create_default(&ctx->base);
 218    if (!ctx->uploader)
 219       goto err_out;
 220    ctx->base.stream_uploader = ctx->uploader;
 221    ctx->base.const_uploader = ctx->uploader;
 222
 223    /* for varying output which need not mmap */
 224    ctx->suballocator =
 225       u_suballocator_create(&ctx->base, 1024 * 1024, 0,
 226                             PIPE_USAGE_STREAM, 0, false);
 227    if (!ctx->suballocator)
 228       goto err_out;
 229
 230    util_dynarray_init(&ctx->vs_cmd_array, ctx);
 231    util_dynarray_init(&ctx->plbu_cmd_array, ctx);
 232
 233    ctx->plb_size = screen->plb_max_blk * LIMA_CTX_PLB_BLK_SIZE;
 234    ctx->plb_gp_size = screen->plb_max_blk * 4;
 235
 236    for (int i = 0; i < lima_ctx_num_plb; i++) {
 237       ctx->plb[i] = lima_bo_create(screen, ctx->plb_size, 0);
 238       if (!ctx->plb[i])
 239          goto err_out;
 240       ctx->gp_tile_heap[i] = lima_bo_create(screen, gp_tile_heap_size, 0);
 241       if (!ctx->gp_tile_heap[i])
 242          goto err_out;
 243    }
 244
 245    unsigned plb_gp_stream_size =
 246       align(ctx->plb_gp_size * lima_ctx_num_plb, LIMA_PAGE_SIZE);
 247    ctx->plb_gp_stream =
 248       lima_bo_create(screen, plb_gp_stream_size, 0);
 249    if (!ctx->plb_gp_stream)
 250       goto err_out;
 251    lima_bo_map(ctx->plb_gp_stream);
 252
 253    /* plb gp stream is static for any framebuffer */
 254    for (int i = 0; i < lima_ctx_num_plb; i++) {
 255       uint32_t *plb_gp_stream = ctx->plb_gp_stream->map + i * ctx->plb_gp_size;
 256       for (int j = 0; j < screen->plb_max_blk; j++)
 257          plb_gp_stream[j] = ctx->plb[i]->va + LIMA_CTX_PLB_BLK_SIZE * j;
 258    }
 259
 260    if (screen->gpu_type == DRM_LIMA_PARAM_GPU_ID_MALI400) {
 261       ctx->plb_pp_stream = _mesa_hash_table_create(
 262          ctx, plb_pp_stream_hash, plb_pp_stream_compare);
 263       if (!ctx->plb_pp_stream)
 264          goto err_out;
 265    }
 266
 267    ctx->gp_submit = lima_submit_create(ctx, LIMA_PIPE_GP);
 268    if (!ctx->gp_submit)
 269       goto err_out;
 270
 271    ctx->pp_submit = lima_submit_create(ctx, LIMA_PIPE_PP);
 272    if (!ctx->pp_submit)
 273       goto err_out;
 274
 275    return &ctx->base;
 276
 277 err_out:
 278    lima_context_destroy(&ctx->base);
 279    return NULL;
 280 }
 281
 282 bool
 283 lima_need_flush(struct lima_context *ctx, struct lima_bo *bo, bool write)
 284 {
 285    return lima_submit_has_bo(ctx->gp_submit, bo, write) ||
 286       lima_submit_has_bo(ctx->pp_submit, bo, write);
 287 }
 288
 289 bool
 290 lima_is_scanout(struct lima_context *ctx)
 291 {
 292         /* If there is no color buffer, it's an FBO */
 293         if (!ctx->framebuffer.base.nr_cbufs)
 294                 return false;
 295
 296         return ctx->framebuffer.base.cbufs[0]->texture->bind & PIPE_BIND_DISPLAY_TARGET ||
 297                ctx->framebuffer.base.cbufs[0]->texture->bind & PIPE_BIND_SCANOUT ||
 298                ctx->framebuffer.base.cbufs[0]->texture->bind & PIPE_BIND_SHARED;
 299 }