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_job.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)
  49 {
  50    struct lima_job *job = lima_job_get(ctx);
  51    struct lima_ctx_buff_state *cbs = ctx->buffer_state + buff;
  52    struct lima_resource *res = lima_resource(cbs->res);
  53    int pipe = buff < lima_ctx_buff_num_gp ? LIMA_PIPE_GP : LIMA_PIPE_PP;
  54
  55    lima_job_add_bo(job, pipe, res->bo, LIMA_SUBMIT_BO_READ);
  56
  57    return res->bo->va + cbs->offset;
  58 }
  59
  60 void *
  61 lima_ctx_buff_map(struct lima_context *ctx, enum lima_ctx_buff buff)
  62 {
  63    struct lima_ctx_buff_state *cbs = ctx->buffer_state + buff;
  64    struct lima_resource *res = lima_resource(cbs->res);
  65
  66    return lima_bo_map(res->bo) + cbs->offset;
  67 }
  68
  69 void *
  70 lima_ctx_buff_alloc(struct lima_context *ctx, enum lima_ctx_buff buff,
  71                     unsigned size)
  72 {
  73    struct lima_ctx_buff_state *cbs = ctx->buffer_state + buff;
  74    void *ret = NULL;
  75
  76    cbs->size = align(size, 0x40);
  77
  78    u_upload_alloc(ctx->uploader, 0, cbs->size, 0x40, &cbs->offset,
  79                   &cbs->res, &ret);
  80
  81    return ret;
  82 }
  83
  84 static int
  85 lima_context_create_drm_ctx(struct lima_screen *screen)
  86 {
  87    struct drm_lima_ctx_create req = {0};
  88
  89    int ret = drmIoctl(screen->fd, DRM_IOCTL_LIMA_CTX_CREATE, &req);
  90    if (ret)
  91       return errno;
  92
  93    return req.id;
  94 }
  95
  96 static void
  97 lima_context_free_drm_ctx(struct lima_screen *screen, int id)
  98 {
  99    struct drm_lima_ctx_free req = {
 100       .id = id,
 101    };
 102
 103    drmIoctl(screen->fd, DRM_IOCTL_LIMA_CTX_FREE, &req);
 104 }
 105
 106 static void
 107 lima_invalidate_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
 108 {
 109    struct lima_context *ctx = lima_context(pctx);
 110
 111    struct hash_entry *entry = _mesa_hash_table_search(ctx->write_jobs, prsc);
 112    if (!entry)
 113       return;
 114
 115    struct lima_job *job = entry->data;
 116    if (job->key.zsbuf && (job->key.zsbuf->texture == prsc))
 117       job->resolve &= ~(PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL);
 118
 119    if (job->key.cbuf && (job->key.cbuf->texture == prsc))
 120       job->resolve &= ~PIPE_CLEAR_COLOR0;
 121
 122    _mesa_hash_table_remove_key(ctx->write_jobs, prsc);
 123 }
 124
 125 static void
 126 plb_pp_stream_delete_fn(struct hash_entry *entry)
 127 {
 128    struct lima_ctx_plb_pp_stream *s = entry->data;
 129
 130    lima_bo_unreference(s->bo);
 131    list_del(&s->lru_list);
 132    ralloc_free(s);
 133 }
 134
 135 static void
 136 lima_context_destroy(struct pipe_context *pctx)
 137 {
 138    struct lima_context *ctx = lima_context(pctx);
 139    struct lima_screen *screen = lima_screen(pctx->screen);
 140
 141    lima_job_fini(ctx);
 142
 143    for (int i = 0; i < lima_ctx_buff_num; i++)
 144       pipe_resource_reference(&ctx->buffer_state[i].res, NULL);
 145
 146    lima_state_fini(ctx);
 147
 148    if (ctx->blitter)
 149       util_blitter_destroy(ctx->blitter);
 150
 151    if (ctx->uploader)
 152       u_upload_destroy(ctx->uploader);
 153
 154    slab_destroy_child(&ctx->transfer_pool);
 155
 156    for (int i = 0; i < LIMA_CTX_PLB_MAX_NUM; i++) {
 157       if (ctx->plb[i])
 158          lima_bo_unreference(ctx->plb[i]);
 159       if (ctx->gp_tile_heap[i])
 160          lima_bo_unreference(ctx->gp_tile_heap[i]);
 161    }
 162
 163    if (ctx->plb_gp_stream)
 164       lima_bo_unreference(ctx->plb_gp_stream);
 165
 166    if (ctx->gp_output)
 167       lima_bo_unreference(ctx->gp_output);
 168
 169    _mesa_hash_table_destroy(ctx->plb_pp_stream,
 170                             plb_pp_stream_delete_fn);
 171
 172    lima_context_free_drm_ctx(screen, ctx->id);
 173
 174    ralloc_free(ctx);
 175 }
 176
 177 static uint32_t
 178 plb_pp_stream_hash(const void *key)
 179 {
 180    return _mesa_hash_data(key, sizeof(struct lima_ctx_plb_pp_stream_key));
 181 }
 182
 183 static bool
 184 plb_pp_stream_compare(const void *key1, const void *key2)
 185 {
 186    return memcmp(key1, key2, sizeof(struct lima_ctx_plb_pp_stream_key)) == 0;
 187 }
 188
 189 static void
 190 lima_set_debug_callback(struct pipe_context *pctx,
 191                         const struct pipe_debug_callback *cb)
 192 {
 193    struct lima_context *ctx = lima_context(pctx);
 194
 195    if (cb)
 196       ctx->debug = *cb;
 197    else
 198       memset(&ctx->debug, 0, sizeof(ctx->debug));
 199 }
 200
 201 struct pipe_context *
 202 lima_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags)
 203 {
 204    struct lima_screen *screen = lima_screen(pscreen);
 205    struct lima_context *ctx;
 206
 207    ctx = rzalloc(screen, struct lima_context);
 208    if (!ctx)
 209       return NULL;
 210
 211    ctx->id = lima_context_create_drm_ctx(screen);
 212    if (ctx->id < 0) {
 213       ralloc_free(ctx);
 214       return NULL;
 215    }
 216
 217    ctx->base.screen = pscreen;
 218    ctx->base.destroy = lima_context_destroy;
 219    ctx->base.set_debug_callback = lima_set_debug_callback;
 220    ctx->base.invalidate_resource = lima_invalidate_resource;
 221
 222    lima_resource_context_init(ctx);
 223    lima_fence_context_init(ctx);
 224    lima_state_init(ctx);
 225    lima_draw_init(ctx);
 226    lima_program_init(ctx);
 227    lima_query_init(ctx);
 228
 229    slab_create_child(&ctx->transfer_pool, &screen->transfer_pool);
 230
 231    ctx->blitter = util_blitter_create(&ctx->base);
 232    if (!ctx->blitter)
 233       goto err_out;
 234
 235    ctx->uploader = u_upload_create_default(&ctx->base);
 236    if (!ctx->uploader)
 237       goto err_out;
 238    ctx->base.stream_uploader = ctx->uploader;
 239    ctx->base.const_uploader = ctx->uploader;
 240
 241    ctx->plb_size = screen->plb_max_blk * LIMA_CTX_PLB_BLK_SIZE;
 242    ctx->plb_gp_size = screen->plb_max_blk * 4;
 243
 244    uint32_t heap_flags;
 245    if (screen->has_growable_heap_buffer) {
 246       /* growable size buffer, initially will allocate 32K (by default)
 247        * backup memory in kernel driver, and will allocate more when GP
 248        * get out of memory interrupt. Max to 16M set here.
 249        */
 250       ctx->gp_tile_heap_size = 0x1000000;
 251       heap_flags = LIMA_BO_FLAG_HEAP;
 252    } else {
 253       /* fix size buffer */
 254       ctx->gp_tile_heap_size = 0x100000;
 255       heap_flags = 0;
 256    }
 257
 258    for (int i = 0; i < lima_ctx_num_plb; i++) {
 259       ctx->plb[i] = lima_bo_create(screen, ctx->plb_size, 0);
 260       if (!ctx->plb[i])
 261          goto err_out;
 262       ctx->gp_tile_heap[i] = lima_bo_create(screen, ctx->gp_tile_heap_size, heap_flags);
 263       if (!ctx->gp_tile_heap[i])
 264          goto err_out;
 265    }
 266
 267    unsigned plb_gp_stream_size =
 268       align(ctx->plb_gp_size * lima_ctx_num_plb, LIMA_PAGE_SIZE);
 269    ctx->plb_gp_stream =
 270       lima_bo_create(screen, plb_gp_stream_size, 0);
 271    if (!ctx->plb_gp_stream)
 272       goto err_out;
 273    lima_bo_map(ctx->plb_gp_stream);
 274
 275    /* plb gp stream is static for any framebuffer */
 276    for (int i = 0; i < lima_ctx_num_plb; i++) {
 277       uint32_t *plb_gp_stream = ctx->plb_gp_stream->map + i * ctx->plb_gp_size;
 278       for (int j = 0; j < screen->plb_max_blk; j++)
 279          plb_gp_stream[j] = ctx->plb[i]->va + LIMA_CTX_PLB_BLK_SIZE * j;
 280    }
 281
 282    list_inithead(&ctx->plb_pp_stream_lru_list);
 283    ctx->plb_pp_stream = _mesa_hash_table_create(
 284       ctx, plb_pp_stream_hash, plb_pp_stream_compare);
 285    if (!ctx->plb_pp_stream)
 286       goto err_out;
 287
 288    if (!lima_job_init(ctx))
 289       goto err_out;
 290
 291    return &ctx->base;
 292
 293 err_out:
 294    lima_context_destroy(&ctx->base);
 295    return NULL;
 296 }