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_submit *submit = lima_submit_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_submit_add_bo(submit, 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_submits, prsc);
 112    if (!entry)
 113       return;
 114
 115    struct lima_submit *submit = entry->data;
 116    if (ctx->framebuffer.base.zsbuf && (ctx->framebuffer.base.zsbuf->texture == prsc))
 117       submit->resolve &= ~(PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL);
 118
 119    if (ctx->framebuffer.base.nr_cbufs &&
 120        (ctx->framebuffer.base.cbufs[0]->texture == prsc))
 121       submit->resolve &= ~PIPE_CLEAR_COLOR0;
 122 }
 123
 124 static void
 125 lima_context_destroy(struct pipe_context *pctx)
 126 {
 127    struct lima_context *ctx = lima_context(pctx);
 128    struct lima_screen *screen = lima_screen(pctx->screen);
 129
 130    lima_submit_fini(ctx);
 131
 132    for (int i = 0; i < lima_ctx_buff_num; i++)
 133       pipe_resource_reference(&ctx->buffer_state[i].res, NULL);
 134
 135    lima_state_fini(ctx);
 136
 137    if (ctx->blitter)
 138       util_blitter_destroy(ctx->blitter);
 139
 140    if (ctx->uploader)
 141       u_upload_destroy(ctx->uploader);
 142
 143    slab_destroy_child(&ctx->transfer_pool);
 144
 145    for (int i = 0; i < LIMA_CTX_PLB_MAX_NUM; i++) {
 146       if (ctx->plb[i])
 147          lima_bo_unreference(ctx->plb[i]);
 148       if (ctx->gp_tile_heap[i])
 149          lima_bo_unreference(ctx->gp_tile_heap[i]);
 150    }
 151
 152    if (ctx->plb_gp_stream)
 153       lima_bo_unreference(ctx->plb_gp_stream);
 154
 155    if (ctx->gp_output)
 156       lima_bo_unreference(ctx->gp_output);
 157
 158    if (ctx->plb_pp_stream)
 159       assert(!_mesa_hash_table_num_entries(ctx->plb_pp_stream));
 160
 161    lima_context_free_drm_ctx(screen, ctx->id);
 162
 163    ralloc_free(ctx);
 164 }
 165
 166 static uint32_t
 167 plb_pp_stream_hash(const void *key)
 168 {
 169    return _mesa_hash_data(key, sizeof(struct lima_ctx_plb_pp_stream_key));
 170 }
 171
 172 static bool
 173 plb_pp_stream_compare(const void *key1, const void *key2)
 174 {
 175    return memcmp(key1, key2, sizeof(struct lima_ctx_plb_pp_stream_key)) == 0;
 176 }
 177
 178 static void
 179 lima_set_debug_callback(struct pipe_context *pctx,
 180                         const struct pipe_debug_callback *cb)
 181 {
 182    struct lima_context *ctx = lima_context(pctx);
 183
 184    if (cb)
 185       ctx->debug = *cb;
 186    else
 187       memset(&ctx->debug, 0, sizeof(ctx->debug));
 188 }
 189
 190 struct pipe_context *
 191 lima_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags)
 192 {
 193    struct lima_screen *screen = lima_screen(pscreen);
 194    struct lima_context *ctx;
 195
 196    ctx = rzalloc(screen, struct lima_context);
 197    if (!ctx)
 198       return NULL;
 199
 200    ctx->id = lima_context_create_drm_ctx(screen);
 201    if (ctx->id < 0) {
 202       ralloc_free(ctx);
 203       return NULL;
 204    }
 205
 206    ctx->base.screen = pscreen;
 207    ctx->base.destroy = lima_context_destroy;
 208    ctx->base.set_debug_callback = lima_set_debug_callback;
 209    ctx->base.invalidate_resource = lima_invalidate_resource;
 210
 211    lima_resource_context_init(ctx);
 212    lima_fence_context_init(ctx);
 213    lima_state_init(ctx);
 214    lima_draw_init(ctx);
 215    lima_program_init(ctx);
 216    lima_query_init(ctx);
 217
 218    slab_create_child(&ctx->transfer_pool, &screen->transfer_pool);
 219
 220    ctx->blitter = util_blitter_create(&ctx->base);
 221    if (!ctx->blitter)
 222       goto err_out;
 223
 224    ctx->uploader = u_upload_create_default(&ctx->base);
 225    if (!ctx->uploader)
 226       goto err_out;
 227    ctx->base.stream_uploader = ctx->uploader;
 228    ctx->base.const_uploader = ctx->uploader;
 229
 230    ctx->plb_size = screen->plb_max_blk * LIMA_CTX_PLB_BLK_SIZE;
 231    ctx->plb_gp_size = screen->plb_max_blk * 4;
 232
 233    uint32_t heap_flags;
 234    if (screen->has_growable_heap_buffer) {
 235       /* growable size buffer, initially will allocate 32K (by default)
 236        * backup memory in kernel driver, and will allocate more when GP
 237        * get out of memory interrupt. Max to 16M set here.
 238        */
 239       ctx->gp_tile_heap_size = 0x1000000;
 240       heap_flags = LIMA_BO_FLAG_HEAP;
 241    } else {
 242       /* fix size buffer */
 243       ctx->gp_tile_heap_size = 0x100000;
 244       heap_flags = 0;
 245    }
 246
 247    for (int i = 0; i < lima_ctx_num_plb; i++) {
 248       ctx->plb[i] = lima_bo_create(screen, ctx->plb_size, 0);
 249       if (!ctx->plb[i])
 250          goto err_out;
 251       ctx->gp_tile_heap[i] = lima_bo_create(screen, ctx->gp_tile_heap_size, heap_flags);
 252       if (!ctx->gp_tile_heap[i])
 253          goto err_out;
 254    }
 255
 256    unsigned plb_gp_stream_size =
 257       align(ctx->plb_gp_size * lima_ctx_num_plb, LIMA_PAGE_SIZE);
 258    ctx->plb_gp_stream =
 259       lima_bo_create(screen, plb_gp_stream_size, 0);
 260    if (!ctx->plb_gp_stream)
 261       goto err_out;
 262    lima_bo_map(ctx->plb_gp_stream);
 263
 264    /* plb gp stream is static for any framebuffer */
 265    for (int i = 0; i < lima_ctx_num_plb; i++) {
 266       uint32_t *plb_gp_stream = ctx->plb_gp_stream->map + i * ctx->plb_gp_size;
 267       for (int j = 0; j < screen->plb_max_blk; j++)
 268          plb_gp_stream[j] = ctx->plb[i]->va + LIMA_CTX_PLB_BLK_SIZE * j;
 269    }
 270
 271    if (screen->gpu_type == DRM_LIMA_PARAM_GPU_ID_MALI400) {
 272       ctx->plb_pp_stream = _mesa_hash_table_create(
 273          ctx, plb_pp_stream_hash, plb_pp_stream_compare);
 274       if (!ctx->plb_pp_stream)
 275          goto err_out;
 276    }
 277
 278    if (!lima_submit_init(ctx))
 279       goto err_out;
 280
 281    return &ctx->base;
 282
 283 err_out:
 284    lima_context_destroy(&ctx->base);
 285    return NULL;
 286 }