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/hash_table.h"
  33
  34 #include "lima_screen.h"
  35 #include "lima_context.h"
  36 #include "lima_resource.h"
  37 #include "lima_bo.h"
  38 #include "lima_submit.h"
  39 #include "lima_util.h"
  40 #include "lima_fence.h"
  41
  42 #include <drm-uapi/lima_drm.h>
  43 #include <xf86drm.h>
  44
  45 int lima_ctx_num_plb = LIMA_CTX_PLB_DEF_NUM;
  46
  47 uint32_t
  48 lima_ctx_buff_va(struct lima_context *ctx, enum lima_ctx_buff buff, unsigned submit)
  49 {
  50    struct lima_ctx_buff_state *cbs = ctx->buffer_state + buff;
  51    struct lima_resource *res = lima_resource(cbs->res);
  52
  53    if (submit & LIMA_CTX_BUFF_SUBMIT_GP)
  54       lima_submit_add_bo(ctx->gp_submit, res->bo, LIMA_SUBMIT_BO_READ);
  55    if (submit & LIMA_CTX_BUFF_SUBMIT_PP)
  56       lima_submit_add_bo(ctx->pp_submit, res->bo, LIMA_SUBMIT_BO_READ);
  57
  58    return res->bo->va + cbs->offset;
  59 }
  60
  61 void *
  62 lima_ctx_buff_map(struct lima_context *ctx, enum lima_ctx_buff buff)
  63 {
  64    struct lima_ctx_buff_state *cbs = ctx->buffer_state + buff;
  65    struct lima_resource *res = lima_resource(cbs->res);
  66
  67    return lima_bo_map(res->bo) + cbs->offset;
  68 }
  69
  70 void *
  71 lima_ctx_buff_alloc(struct lima_context *ctx, enum lima_ctx_buff buff,
  72                     unsigned size)
  73 {
  74    struct lima_ctx_buff_state *cbs = ctx->buffer_state + buff;
  75    void *ret = NULL;
  76
  77    cbs->size = align(size, 0x40);
  78
  79    u_upload_alloc(ctx->uploader, 0, cbs->size, 0x40, &cbs->offset,
  80                   &cbs->res, &ret);
  81
  82    return ret;
  83 }
  84
  85 static int
  86 lima_context_create_drm_ctx(struct lima_screen *screen)
  87 {
  88    struct drm_lima_ctx_create req = {0};
  89
  90    int ret = drmIoctl(screen->fd, DRM_IOCTL_LIMA_CTX_CREATE, &req);
  91    if (ret)
  92       return errno;
  93
  94    return req.id;
  95 }
  96
  97 static void
  98 lima_context_free_drm_ctx(struct lima_screen *screen, int id)
  99 {
 100    struct drm_lima_ctx_free req = {
 101       .id = id,
 102    };
 103
 104    drmIoctl(screen->fd, DRM_IOCTL_LIMA_CTX_FREE, &req);
 105 }
 106
 107 static void
 108 lima_context_destroy(struct pipe_context *pctx)
 109 {
 110    struct lima_context *ctx = lima_context(pctx);
 111    struct lima_screen *screen = lima_screen(pctx->screen);
 112
 113    if (ctx->pp_submit)
 114       lima_submit_free(ctx->pp_submit);
 115    if (ctx->gp_submit)
 116       lima_submit_free(ctx->gp_submit);
 117
 118    for (int i = 0; i < lima_ctx_buff_num; i++)
 119       pipe_resource_reference(&ctx->buffer_state[i].res, NULL);
 120
 121    lima_state_fini(ctx);
 122
 123    if (ctx->blitter)
 124       util_blitter_destroy(ctx->blitter);
 125
 126    if (ctx->uploader)
 127       u_upload_destroy(ctx->uploader);
 128
 129    slab_destroy_child(&ctx->transfer_pool);
 130
 131    for (int i = 0; i < LIMA_CTX_PLB_MAX_NUM; i++) {
 132       if (ctx->plb[i])
 133          lima_bo_unreference(ctx->plb[i]);
 134       if (ctx->gp_tile_heap[i])
 135          lima_bo_unreference(ctx->gp_tile_heap[i]);
 136    }
 137
 138    if (ctx->plb_gp_stream)
 139       lima_bo_unreference(ctx->plb_gp_stream);
 140
 141    if (ctx->gp_output)
 142       lima_bo_unreference(ctx->gp_output);
 143
 144    if (ctx->plb_pp_stream)
 145       assert(!_mesa_hash_table_num_entries(ctx->plb_pp_stream));
 146
 147    lima_context_free_drm_ctx(screen, ctx->id);
 148
 149    ralloc_free(ctx);
 150 }
 151
 152 static uint32_t
 153 plb_pp_stream_hash(const void *key)
 154 {
 155    return _mesa_hash_data(key, sizeof(struct lima_ctx_plb_pp_stream_key));
 156 }
 157
 158 static bool
 159 plb_pp_stream_compare(const void *key1, const void *key2)
 160 {
 161    return memcmp(key1, key2, sizeof(struct lima_ctx_plb_pp_stream_key)) == 0;
 162 }
 163
 164 static void
 165 lima_set_debug_callback(struct pipe_context *pctx,
 166                         const struct pipe_debug_callback *cb)
 167 {
 168    struct lima_context *ctx = lima_context(pctx);
 169
 170    if (cb)
 171       ctx->debug = *cb;
 172    else
 173       memset(&ctx->debug, 0, sizeof(ctx->debug));
 174 }
 175
 176 struct pipe_context *
 177 lima_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags)
 178 {
 179    struct lima_screen *screen = lima_screen(pscreen);
 180    struct lima_context *ctx;
 181
 182    ctx = rzalloc(screen, struct lima_context);
 183    if (!ctx)
 184       return NULL;
 185
 186    ctx->id = lima_context_create_drm_ctx(screen);
 187    if (ctx->id < 0) {
 188       ralloc_free(ctx);
 189       return NULL;
 190    }
 191
 192    ctx->base.screen = pscreen;
 193    ctx->base.destroy = lima_context_destroy;
 194    ctx->base.set_debug_callback = lima_set_debug_callback;
 195
 196    lima_resource_context_init(ctx);
 197    lima_fence_context_init(ctx);
 198    lima_state_init(ctx);
 199    lima_draw_init(ctx);
 200    lima_program_init(ctx);
 201    lima_query_init(ctx);
 202
 203    slab_create_child(&ctx->transfer_pool, &screen->transfer_pool);
 204
 205    ctx->blitter = util_blitter_create(&ctx->base);
 206    if (!ctx->blitter)
 207       goto err_out;
 208
 209    ctx->uploader = u_upload_create_default(&ctx->base);
 210    if (!ctx->uploader)
 211       goto err_out;
 212    ctx->base.stream_uploader = ctx->uploader;
 213    ctx->base.const_uploader = ctx->uploader;
 214
 215    ctx->damage_rect.minx = ctx->damage_rect.miny = 0xffff;
 216    ctx->damage_rect.maxx = ctx->damage_rect.maxy = 0;
 217
 218    util_dynarray_init(&ctx->vs_cmd_array, ctx);
 219    util_dynarray_init(&ctx->plbu_cmd_array, ctx);
 220
 221    ctx->plb_size = screen->plb_max_blk * LIMA_CTX_PLB_BLK_SIZE;
 222    ctx->plb_gp_size = screen->plb_max_blk * 4;
 223
 224    for (int i = 0; i < lima_ctx_num_plb; i++) {
 225       ctx->plb[i] = lima_bo_create(screen, ctx->plb_size, 0);
 226       if (!ctx->plb[i])
 227          goto err_out;
 228       ctx->gp_tile_heap[i] = lima_bo_create(screen, gp_tile_heap_size, 0);
 229       if (!ctx->gp_tile_heap[i])
 230          goto err_out;
 231    }
 232
 233    unsigned plb_gp_stream_size =
 234       align(ctx->plb_gp_size * lima_ctx_num_plb, LIMA_PAGE_SIZE);
 235    ctx->plb_gp_stream =
 236       lima_bo_create(screen, plb_gp_stream_size, 0);
 237    if (!ctx->plb_gp_stream)
 238       goto err_out;
 239    lima_bo_map(ctx->plb_gp_stream);
 240
 241    /* plb gp stream is static for any framebuffer */
 242    for (int i = 0; i < lima_ctx_num_plb; i++) {
 243       uint32_t *plb_gp_stream = ctx->plb_gp_stream->map + i * ctx->plb_gp_size;
 244       for (int j = 0; j < screen->plb_max_blk; j++)
 245          plb_gp_stream[j] = ctx->plb[i]->va + LIMA_CTX_PLB_BLK_SIZE * j;
 246    }
 247
 248    if (screen->gpu_type == DRM_LIMA_PARAM_GPU_ID_MALI400) {
 249       ctx->plb_pp_stream = _mesa_hash_table_create(
 250          ctx, plb_pp_stream_hash, plb_pp_stream_compare);
 251       if (!ctx->plb_pp_stream)
 252          goto err_out;
 253    }
 254
 255    ctx->gp_submit = lima_submit_create(ctx, LIMA_PIPE_GP);
 256    if (!ctx->gp_submit)
 257       goto err_out;
 258
 259    ctx->pp_submit = lima_submit_create(ctx, LIMA_PIPE_PP);
 260    if (!ctx->pp_submit)
 261       goto err_out;
 262
 263    return &ctx->base;
 264
 265 err_out:
 266    lima_context_destroy(&ctx->base);
 267    return NULL;
 268 }
 269
 270 bool
 271 lima_need_flush(struct lima_context *ctx, struct lima_bo *bo, bool write)
 272 {
 273    return lima_submit_has_bo(ctx->gp_submit, bo, write) ||
 274       lima_submit_has_bo(ctx->pp_submit, bo, write);
 275 }
 276
 277 bool
 278 lima_is_scanout(struct lima_context *ctx)
 279 {
 280         /* If there is no color buffer, it's an FBO */
 281         if (!ctx->framebuffer.base.nr_cbufs)
 282                 return false;
 283
 284         return ctx->framebuffer.base.cbufs[0]->texture->bind & PIPE_BIND_DISPLAY_TARGET ||
 285                ctx->framebuffer.base.cbufs[0]->texture->bind & PIPE_BIND_SCANOUT ||
 286                ctx->framebuffer.base.cbufs[0]->texture->bind & PIPE_BIND_SHARED;
 287 }