671 lines
20 KiB
C
671 lines
20 KiB
C
/*
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* Copyright © 2014-2015 Broadcom
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include <errno.h>
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#include <err.h>
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#include <sys/mman.h>
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#include <fcntl.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include "util/u_hash_table.h"
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#include "util/u_memory.h"
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#include "util/u_string.h"
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#include "util/ralloc.h"
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#include "vc4_context.h"
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#include "vc4_screen.h"
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static bool dump_stats = false;
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static void
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vc4_bo_cache_free_all(struct vc4_bo_cache *cache);
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void
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vc4_bo_debug_describe(char* buf, const struct vc4_bo *ptr)
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{
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sprintf(buf, "vc4_bo<%s,%u,%u>", ptr->name ? ptr->name : "?",
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ptr->handle, ptr->size);
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}
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void
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vc4_bo_label(struct vc4_screen *screen, struct vc4_bo *bo, const char *fmt, ...)
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{
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/* Perform BO labeling by default on debug builds (so that you get
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* whole-system allocation information), or if VC4_DEBUG=surf is set
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* (for debugging a single app's allocation).
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*/
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#ifndef DEBUG
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if (!(vc4_debug & VC4_DEBUG_SURFACE))
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return;
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#endif
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va_list va;
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va_start(va, fmt);
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char *name = ralloc_vasprintf(NULL, fmt, va);
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va_end(va);
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struct drm_vc4_label_bo label = {
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.handle = bo->handle,
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.len = strlen(name),
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.name = (uintptr_t)name,
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};
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vc4_ioctl(screen->fd, DRM_IOCTL_VC4_LABEL_BO, &label);
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ralloc_free(name);
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}
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static void
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vc4_bo_dump_stats(struct vc4_screen *screen)
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{
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struct vc4_bo_cache *cache = &screen->bo_cache;
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fprintf(stderr, " BOs allocated: %d\n", screen->bo_count);
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fprintf(stderr, " BOs size: %dkb\n", screen->bo_size / 1024);
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fprintf(stderr, " BOs cached: %d\n", cache->bo_count);
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fprintf(stderr, " BOs cached size: %dkb\n", cache->bo_size / 1024);
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if (!list_is_empty(&cache->time_list)) {
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struct vc4_bo *first = list_entry(cache->time_list.next,
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struct vc4_bo,
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time_list);
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struct vc4_bo *last = list_entry(cache->time_list.prev,
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struct vc4_bo,
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time_list);
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fprintf(stderr, " oldest cache time: %ld\n",
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(long)first->free_time);
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fprintf(stderr, " newest cache time: %ld\n",
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(long)last->free_time);
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struct timespec time;
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clock_gettime(CLOCK_MONOTONIC, &time);
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fprintf(stderr, " now: %jd\n",
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(intmax_t)time.tv_sec);
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}
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}
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static void
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vc4_bo_remove_from_cache(struct vc4_bo_cache *cache, struct vc4_bo *bo)
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{
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list_del(&bo->time_list);
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list_del(&bo->size_list);
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cache->bo_count--;
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cache->bo_size -= bo->size;
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}
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static void vc4_bo_purgeable(struct vc4_bo *bo)
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{
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struct drm_vc4_gem_madvise arg = {
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.handle = bo->handle,
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.madv = VC4_MADV_DONTNEED,
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};
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if (bo->screen->has_madvise)
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vc4_ioctl(bo->screen->fd, DRM_IOCTL_VC4_GEM_MADVISE, &arg);
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}
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static bool vc4_bo_unpurgeable(struct vc4_bo *bo)
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{
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struct drm_vc4_gem_madvise arg = {
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.handle = bo->handle,
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.madv = VC4_MADV_WILLNEED,
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};
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if (!bo->screen->has_madvise)
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return true;
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if (vc4_ioctl(bo->screen->fd, DRM_IOCTL_VC4_GEM_MADVISE, &arg))
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return false;
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return arg.retained;
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}
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static void
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vc4_bo_free(struct vc4_bo *bo)
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{
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struct vc4_screen *screen = bo->screen;
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if (bo->map) {
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if (using_vc4_simulator && bo->name &&
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strcmp(bo->name, "winsys") == 0) {
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free(bo->map);
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} else {
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munmap(bo->map, bo->size);
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VG(VALGRIND_FREELIKE_BLOCK(bo->map, 0));
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}
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}
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struct drm_gem_close c;
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memset(&c, 0, sizeof(c));
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c.handle = bo->handle;
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int ret = vc4_ioctl(screen->fd, DRM_IOCTL_GEM_CLOSE, &c);
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if (ret != 0)
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fprintf(stderr, "close object %d: %s\n", bo->handle, strerror(errno));
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screen->bo_count--;
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screen->bo_size -= bo->size;
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if (dump_stats) {
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fprintf(stderr, "Freed %s%s%dkb:\n",
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bo->name ? bo->name : "",
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bo->name ? " " : "",
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bo->size / 1024);
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vc4_bo_dump_stats(screen);
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}
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free(bo);
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}
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static struct vc4_bo *
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vc4_bo_from_cache(struct vc4_screen *screen, uint32_t size, const char *name)
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{
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struct vc4_bo_cache *cache = &screen->bo_cache;
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uint32_t page_index = size / 4096 - 1;
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struct vc4_bo *iter, *tmp, *bo = NULL;
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if (cache->size_list_size <= page_index)
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return NULL;
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mtx_lock(&cache->lock);
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LIST_FOR_EACH_ENTRY_SAFE(iter, tmp, &cache->size_list[page_index],
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size_list) {
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/* Check that the BO has gone idle. If not, then none of the
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* other BOs (pushed to the list after later rendering) are
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* likely to be idle, either.
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*/
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if (!vc4_bo_wait(iter, 0, NULL))
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break;
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if (!vc4_bo_unpurgeable(iter)) {
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/* The BO has been purged. Free it and try to find
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* another one in the cache.
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*/
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vc4_bo_remove_from_cache(cache, iter);
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vc4_bo_free(iter);
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continue;
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}
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bo = iter;
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pipe_reference_init(&bo->reference, 1);
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vc4_bo_remove_from_cache(cache, bo);
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vc4_bo_label(screen, bo, "%s", name);
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bo->name = name;
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break;
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}
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mtx_unlock(&cache->lock);
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return bo;
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}
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struct vc4_bo *
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vc4_bo_alloc(struct vc4_screen *screen, uint32_t size, const char *name)
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{
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bool cleared_and_retried = false;
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struct drm_vc4_create_bo create;
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struct vc4_bo *bo;
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int ret;
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size = align(size, 4096);
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bo = vc4_bo_from_cache(screen, size, name);
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if (bo) {
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if (dump_stats) {
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fprintf(stderr, "Allocated %s %dkb from cache:\n",
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name, size / 1024);
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vc4_bo_dump_stats(screen);
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}
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return bo;
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}
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bo = CALLOC_STRUCT(vc4_bo);
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if (!bo)
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return NULL;
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pipe_reference_init(&bo->reference, 1);
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bo->screen = screen;
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bo->size = size;
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bo->name = name;
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bo->private = true;
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retry:
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memset(&create, 0, sizeof(create));
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create.size = size;
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ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_CREATE_BO, &create);
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bo->handle = create.handle;
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if (ret != 0) {
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if (!list_is_empty(&screen->bo_cache.time_list) &&
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!cleared_and_retried) {
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cleared_and_retried = true;
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vc4_bo_cache_free_all(&screen->bo_cache);
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goto retry;
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}
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free(bo);
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return NULL;
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}
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screen->bo_count++;
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screen->bo_size += bo->size;
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if (dump_stats) {
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fprintf(stderr, "Allocated %s %dkb:\n", name, size / 1024);
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vc4_bo_dump_stats(screen);
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}
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vc4_bo_label(screen, bo, "%s", name);
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return bo;
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}
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void
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vc4_bo_last_unreference(struct vc4_bo *bo)
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{
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struct vc4_screen *screen = bo->screen;
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struct timespec time;
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clock_gettime(CLOCK_MONOTONIC, &time);
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mtx_lock(&screen->bo_cache.lock);
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vc4_bo_last_unreference_locked_timed(bo, time.tv_sec);
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mtx_unlock(&screen->bo_cache.lock);
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}
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static void
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free_stale_bos(struct vc4_screen *screen, time_t time)
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{
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struct vc4_bo_cache *cache = &screen->bo_cache;
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bool freed_any = false;
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list_for_each_entry_safe(struct vc4_bo, bo, &cache->time_list,
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time_list) {
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if (dump_stats && !freed_any) {
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fprintf(stderr, "Freeing stale BOs:\n");
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vc4_bo_dump_stats(screen);
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freed_any = true;
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}
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/* If it's more than a second old, free it. */
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if (time - bo->free_time > 2) {
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vc4_bo_remove_from_cache(cache, bo);
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vc4_bo_free(bo);
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} else {
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break;
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}
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}
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if (dump_stats && freed_any) {
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fprintf(stderr, "Freed stale BOs:\n");
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vc4_bo_dump_stats(screen);
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}
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}
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static void
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vc4_bo_cache_free_all(struct vc4_bo_cache *cache)
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{
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mtx_lock(&cache->lock);
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list_for_each_entry_safe(struct vc4_bo, bo, &cache->time_list,
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time_list) {
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vc4_bo_remove_from_cache(cache, bo);
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vc4_bo_free(bo);
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}
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mtx_unlock(&cache->lock);
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}
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void
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vc4_bo_last_unreference_locked_timed(struct vc4_bo *bo, time_t time)
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{
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struct vc4_screen *screen = bo->screen;
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struct vc4_bo_cache *cache = &screen->bo_cache;
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uint32_t page_index = bo->size / 4096 - 1;
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if (!bo->private) {
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vc4_bo_free(bo);
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return;
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}
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if (cache->size_list_size <= page_index) {
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struct list_head *new_list =
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ralloc_array(screen, struct list_head, page_index + 1);
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/* Move old list contents over (since the array has moved, and
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* therefore the pointers to the list heads have to change).
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*/
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for (int i = 0; i < cache->size_list_size; i++)
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list_replace(&cache->size_list[i], &new_list[i]);
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for (int i = cache->size_list_size; i < page_index + 1; i++)
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list_inithead(&new_list[i]);
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cache->size_list = new_list;
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cache->size_list_size = page_index + 1;
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}
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vc4_bo_purgeable(bo);
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bo->free_time = time;
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list_addtail(&bo->size_list, &cache->size_list[page_index]);
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list_addtail(&bo->time_list, &cache->time_list);
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cache->bo_count++;
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cache->bo_size += bo->size;
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if (dump_stats) {
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fprintf(stderr, "Freed %s %dkb to cache:\n",
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bo->name, bo->size / 1024);
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vc4_bo_dump_stats(screen);
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}
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bo->name = NULL;
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vc4_bo_label(screen, bo, "mesa cache");
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free_stale_bos(screen, time);
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}
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static struct vc4_bo *
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vc4_bo_open_handle(struct vc4_screen *screen,
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uint32_t handle, uint32_t size)
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{
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struct vc4_bo *bo;
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assert(size);
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mtx_lock(&screen->bo_handles_mutex);
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bo = util_hash_table_get(screen->bo_handles, (void*)(uintptr_t)handle);
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if (bo) {
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vc4_bo_reference(bo);
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goto done;
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}
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bo = CALLOC_STRUCT(vc4_bo);
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pipe_reference_init(&bo->reference, 1);
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bo->screen = screen;
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bo->handle = handle;
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bo->size = size;
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bo->name = "winsys";
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bo->private = false;
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#ifdef USE_VC4_SIMULATOR
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vc4_simulator_open_from_handle(screen->fd, bo->handle, bo->size);
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bo->map = malloc(bo->size);
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#endif
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_mesa_hash_table_insert(screen->bo_handles, (void *)(uintptr_t)handle, bo);
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done:
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mtx_unlock(&screen->bo_handles_mutex);
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return bo;
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}
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struct vc4_bo *
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vc4_bo_open_name(struct vc4_screen *screen, uint32_t name)
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{
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struct drm_gem_open o = {
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.name = name
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};
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int ret = vc4_ioctl(screen->fd, DRM_IOCTL_GEM_OPEN, &o);
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if (ret) {
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fprintf(stderr, "Failed to open bo %d: %s\n",
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name, strerror(errno));
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return NULL;
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}
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return vc4_bo_open_handle(screen, o.handle, o.size);
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}
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struct vc4_bo *
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vc4_bo_open_dmabuf(struct vc4_screen *screen, int fd)
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{
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uint32_t handle;
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int ret = drmPrimeFDToHandle(screen->fd, fd, &handle);
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int size;
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if (ret) {
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fprintf(stderr, "Failed to get vc4 handle for dmabuf %d\n", fd);
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return NULL;
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}
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/* Determine the size of the bo we were handed. */
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size = lseek(fd, 0, SEEK_END);
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if (size == -1) {
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fprintf(stderr, "Couldn't get size of dmabuf fd %d.\n", fd);
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return NULL;
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}
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return vc4_bo_open_handle(screen, handle, size);
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}
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int
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vc4_bo_get_dmabuf(struct vc4_bo *bo)
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{
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int fd;
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int ret = drmPrimeHandleToFD(bo->screen->fd, bo->handle,
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O_CLOEXEC, &fd);
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if (ret != 0) {
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fprintf(stderr, "Failed to export gem bo %d to dmabuf\n",
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bo->handle);
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return -1;
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}
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mtx_lock(&bo->screen->bo_handles_mutex);
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bo->private = false;
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_mesa_hash_table_insert(bo->screen->bo_handles, (void *)(uintptr_t)bo->handle, bo);
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mtx_unlock(&bo->screen->bo_handles_mutex);
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return fd;
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}
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struct vc4_bo *
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vc4_bo_alloc_shader(struct vc4_screen *screen, const void *data, uint32_t size)
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{
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struct vc4_bo *bo;
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int ret;
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bo = CALLOC_STRUCT(vc4_bo);
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if (!bo)
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return NULL;
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pipe_reference_init(&bo->reference, 1);
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bo->screen = screen;
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bo->size = align(size, 4096);
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bo->name = "code";
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bo->private = false; /* Make sure it doesn't go back to the cache. */
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struct drm_vc4_create_shader_bo create = {
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.size = size,
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.data = (uintptr_t)data,
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};
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ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_CREATE_SHADER_BO,
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&create);
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bo->handle = create.handle;
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if (ret != 0) {
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fprintf(stderr, "create shader ioctl failure\n");
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abort();
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}
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screen->bo_count++;
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screen->bo_size += bo->size;
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if (dump_stats) {
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fprintf(stderr, "Allocated shader %dkb:\n", bo->size / 1024);
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vc4_bo_dump_stats(screen);
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}
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return bo;
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}
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bool
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vc4_bo_flink(struct vc4_bo *bo, uint32_t *name)
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{
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struct drm_gem_flink flink = {
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.handle = bo->handle,
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};
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int ret = vc4_ioctl(bo->screen->fd, DRM_IOCTL_GEM_FLINK, &flink);
|
|
if (ret) {
|
|
fprintf(stderr, "Failed to flink bo %d: %s\n",
|
|
bo->handle, strerror(errno));
|
|
free(bo);
|
|
return false;
|
|
}
|
|
|
|
bo->private = false;
|
|
*name = flink.name;
|
|
|
|
return true;
|
|
}
|
|
|
|
static int vc4_wait_seqno_ioctl(int fd, uint64_t seqno, uint64_t timeout_ns)
|
|
{
|
|
struct drm_vc4_wait_seqno wait = {
|
|
.seqno = seqno,
|
|
.timeout_ns = timeout_ns,
|
|
};
|
|
int ret = vc4_ioctl(fd, DRM_IOCTL_VC4_WAIT_SEQNO, &wait);
|
|
if (ret == -1)
|
|
return -errno;
|
|
else
|
|
return 0;
|
|
|
|
}
|
|
|
|
bool
|
|
vc4_wait_seqno(struct vc4_screen *screen, uint64_t seqno, uint64_t timeout_ns,
|
|
const char *reason)
|
|
{
|
|
if (screen->finished_seqno >= seqno)
|
|
return true;
|
|
|
|
if (unlikely(vc4_debug & VC4_DEBUG_PERF) && timeout_ns && reason) {
|
|
if (vc4_wait_seqno_ioctl(screen->fd, seqno, 0) == -ETIME) {
|
|
fprintf(stderr, "Blocking on seqno %lld for %s\n",
|
|
(long long)seqno, reason);
|
|
}
|
|
}
|
|
|
|
int ret = vc4_wait_seqno_ioctl(screen->fd, seqno, timeout_ns);
|
|
if (ret) {
|
|
if (ret != -ETIME) {
|
|
fprintf(stderr, "wait failed: %d\n", ret);
|
|
abort();
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
screen->finished_seqno = seqno;
|
|
return true;
|
|
}
|
|
|
|
static int vc4_wait_bo_ioctl(int fd, uint32_t handle, uint64_t timeout_ns)
|
|
{
|
|
struct drm_vc4_wait_bo wait = {
|
|
.handle = handle,
|
|
.timeout_ns = timeout_ns,
|
|
};
|
|
int ret = vc4_ioctl(fd, DRM_IOCTL_VC4_WAIT_BO, &wait);
|
|
if (ret == -1)
|
|
return -errno;
|
|
else
|
|
return 0;
|
|
|
|
}
|
|
|
|
bool
|
|
vc4_bo_wait(struct vc4_bo *bo, uint64_t timeout_ns, const char *reason)
|
|
{
|
|
struct vc4_screen *screen = bo->screen;
|
|
|
|
if (unlikely(vc4_debug & VC4_DEBUG_PERF) && timeout_ns && reason) {
|
|
if (vc4_wait_bo_ioctl(screen->fd, bo->handle, 0) == -ETIME) {
|
|
fprintf(stderr, "Blocking on %s BO for %s\n",
|
|
bo->name, reason);
|
|
}
|
|
}
|
|
|
|
int ret = vc4_wait_bo_ioctl(screen->fd, bo->handle, timeout_ns);
|
|
if (ret) {
|
|
if (ret != -ETIME) {
|
|
fprintf(stderr, "wait failed: %d\n", ret);
|
|
abort();
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void *
|
|
vc4_bo_map_unsynchronized(struct vc4_bo *bo)
|
|
{
|
|
uint64_t offset;
|
|
int ret;
|
|
|
|
if (bo->map)
|
|
return bo->map;
|
|
|
|
struct drm_vc4_mmap_bo map;
|
|
memset(&map, 0, sizeof(map));
|
|
map.handle = bo->handle;
|
|
ret = vc4_ioctl(bo->screen->fd, DRM_IOCTL_VC4_MMAP_BO, &map);
|
|
offset = map.offset;
|
|
if (ret != 0) {
|
|
fprintf(stderr, "map ioctl failure\n");
|
|
abort();
|
|
}
|
|
|
|
bo->map = mmap(NULL, bo->size, PROT_READ | PROT_WRITE, MAP_SHARED,
|
|
bo->screen->fd, offset);
|
|
if (bo->map == MAP_FAILED) {
|
|
fprintf(stderr, "mmap of bo %d (offset 0x%016llx, size %d) failed\n",
|
|
bo->handle, (long long)offset, bo->size);
|
|
abort();
|
|
}
|
|
VG(VALGRIND_MALLOCLIKE_BLOCK(bo->map, bo->size, 0, false));
|
|
|
|
return bo->map;
|
|
}
|
|
|
|
void *
|
|
vc4_bo_map(struct vc4_bo *bo)
|
|
{
|
|
void *map = vc4_bo_map_unsynchronized(bo);
|
|
|
|
bool ok = vc4_bo_wait(bo, PIPE_TIMEOUT_INFINITE, "bo map");
|
|
if (!ok) {
|
|
fprintf(stderr, "BO wait for map failed\n");
|
|
abort();
|
|
}
|
|
|
|
return map;
|
|
}
|
|
|
|
void
|
|
vc4_bufmgr_destroy(struct pipe_screen *pscreen)
|
|
{
|
|
struct vc4_screen *screen = vc4_screen(pscreen);
|
|
struct vc4_bo_cache *cache = &screen->bo_cache;
|
|
|
|
vc4_bo_cache_free_all(cache);
|
|
|
|
if (dump_stats) {
|
|
fprintf(stderr, "BO stats after screen destroy:\n");
|
|
vc4_bo_dump_stats(screen);
|
|
}
|
|
}
|