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)
  49 {
  50    struct lima_ctx_buff_state *cbs = ctx->buffer_state + buff;
  51    struct lima_resource *res = lima_resource(cbs->res);
  52    int pipe = buff < lima_ctx_buff_num_gp ? LIMA_PIPE_GP : LIMA_PIPE_PP;
  53
  54    lima_submit_add_bo(ctx->submit, pipe, res->bo, LIMA_SUBMIT_BO_READ);
  55
  56    return res->bo->va + cbs->offset;
  57 }
  58
  59 void *
  60 lima_ctx_buff_map(struct lima_context *ctx, enum lima_ctx_buff buff)
  61 {
  62    struct lima_ctx_buff_state *cbs = ctx->buffer_state + buff;
  63    struct lima_resource *res = lima_resource(cbs->res);
  64
  65    return lima_bo_map(res->bo) + cbs->offset;
  66 }
  67
  68 void *
  69 lima_ctx_buff_alloc(struct lima_context *ctx, enum lima_ctx_buff buff,
  70                     unsigned size)
  71 {
  72    struct lima_ctx_buff_state *cbs = ctx->buffer_state + buff;
  73    void *ret = NULL;
  74
  75    cbs->size = align(size, 0x40);
  76
  77    u_upload_alloc(ctx->uploader, 0, cbs->size, 0x40, &cbs->offset,
  78                   &cbs->res, &ret);
  79
  80    return ret;
  81 }
  82
  83 static int
  84 lima_context_create_drm_ctx(struct lima_screen *screen)
  85 {
  86    struct drm_lima_ctx_create req = {0};
  87
  88    int ret = drmIoctl(screen->fd, DRM_IOCTL_LIMA_CTX_CREATE, &req);
  89    if (ret)
  90       return errno;
  91
  92    return req.id;
  93 }
  94
  95 static void
  96 lima_context_free_drm_ctx(struct lima_screen *screen, int id)
  97 {
  98    struct drm_lima_ctx_free req = {
  99       .id = id,
 100    };
 101
 102    drmIoctl(screen->fd, DRM_IOCTL_LIMA_CTX_FREE, &req);
 103 }
 104
 105 static void
 106 lima_invalidate_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
 107 {
 108    struct lima_context *ctx = lima_context(pctx);
 109
 110    if (ctx->framebuffer.base.zsbuf && (ctx->framebuffer.base.zsbuf->texture == prsc))
 111       ctx->resolve &= ~(PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL);
 112
 113    if (ctx->framebuffer.base.nr_cbufs &&
 114        (ctx->framebuffer.base.cbufs[0]->texture == prsc))
 115       ctx->resolve &= ~PIPE_CLEAR_COLOR0;
 116 }
 117
 118 static void
 119 lima_context_destroy(struct pipe_context *pctx)
 120 {
 121    struct lima_context *ctx = lima_context(pctx);
 122    struct lima_screen *screen = lima_screen(pctx->screen);
 123
 124    lima_submit_fini(ctx);
 125
 126    for (int i = 0; i < lima_ctx_buff_num; i++)
 127       pipe_resource_reference(&ctx->buffer_state[i].res, NULL);
 128
 129    lima_state_fini(ctx);
 130
 131    if (ctx->blitter)
 132       util_blitter_destroy(ctx->blitter);
 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    ctx->base.invalidate_resource = lima_invalidate_resource;
 204
 205    lima_resource_context_init(ctx);
 206    lima_fence_context_init(ctx);
 207    lima_state_init(ctx);
 208    lima_draw_init(ctx);
 209    lima_program_init(ctx);
 210    lima_query_init(ctx);
 211
 212    slab_create_child(&ctx->transfer_pool, &screen->transfer_pool);
 213
 214    ctx->blitter = util_blitter_create(&ctx->base);
 215    if (!ctx->blitter)
 216       goto err_out;
 217
 218    ctx->uploader = u_upload_create_default(&ctx->base);
 219    if (!ctx->uploader)
 220       goto err_out;
 221    ctx->base.stream_uploader = ctx->uploader;
 222    ctx->base.const_uploader = ctx->uploader;
 223
 224    ctx->damage_rect.minx = ctx->damage_rect.miny = 0xffff;
 225    ctx->damage_rect.maxx = ctx->damage_rect.maxy = 0;
 226
 227    util_dynarray_init(&ctx->vs_cmd_array, ctx);
 228    util_dynarray_init(&ctx->plbu_cmd_array, ctx);
 229    util_dynarray_init(&ctx->plbu_cmd_head, ctx);
 230
 231    ctx->plb_size = screen->plb_max_blk * LIMA_CTX_PLB_BLK_SIZE;
 232    ctx->plb_gp_size = screen->plb_max_blk * 4;
 233
 234    uint32_t heap_flags;
 235    if (screen->has_growable_heap_buffer) {
 236       /* growable size buffer, initially will allocate 32K (by default)
 237        * backup memory in kernel driver, and will allocate more when GP
 238        * get out of memory interrupt. Max to 16M set here.
 239        */
 240       ctx->gp_tile_heap_size = 0x1000000;
 241       heap_flags = LIMA_BO_FLAG_HEAP;
 242    } else {
 243       /* fix size buffer */
 244       ctx->gp_tile_heap_size = 0x100000;
 245       heap_flags = 0;
 246    }
 247
 248    for (int i = 0; i < lima_ctx_num_plb; i++) {
 249       ctx->plb[i] = lima_bo_create(screen, ctx->plb_size, 0);
 250       if (!ctx->plb[i])
 251          goto err_out;
 252       ctx->gp_tile_heap[i] = lima_bo_create(screen, ctx->gp_tile_heap_size, heap_flags);
 253       if (!ctx->gp_tile_heap[i])
 254          goto err_out;
 255    }
 256
 257    unsigned plb_gp_stream_size =
 258       align(ctx->plb_gp_size * lima_ctx_num_plb, LIMA_PAGE_SIZE);
 259    ctx->plb_gp_stream =
 260       lima_bo_create(screen, plb_gp_stream_size, 0);
 261    if (!ctx->plb_gp_stream)
 262       goto err_out;
 263    lima_bo_map(ctx->plb_gp_stream);
 264
 265    /* plb gp stream is static for any framebuffer */
 266    for (int i = 0; i < lima_ctx_num_plb; i++) {
 267       uint32_t *plb_gp_stream = ctx->plb_gp_stream->map + i * ctx->plb_gp_size;
 268       for (int j = 0; j < screen->plb_max_blk; j++)
 269          plb_gp_stream[j] = ctx->plb[i]->va + LIMA_CTX_PLB_BLK_SIZE * j;
 270    }
 271
 272    if (screen->gpu_type == DRM_LIMA_PARAM_GPU_ID_MALI400) {
 273       ctx->plb_pp_stream = _mesa_hash_table_create(
 274          ctx, plb_pp_stream_hash, plb_pp_stream_compare);
 275       if (!ctx->plb_pp_stream)
 276          goto err_out;
 277    }
 278
 279    if (!lima_submit_init(ctx))
 280       goto err_out;
 281
 282    return &ctx->base;
 283
 284 err_out:
 285    lima_context_destroy(&ctx->base);
 286    return NULL;
 287 }
 288
 289 bool
 290 lima_need_flush(struct lima_context *ctx, struct lima_bo *bo, bool write)
 291 {
 292    return lima_submit_has_bo(ctx->submit, bo, write);
 293 }