/*
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* Copyright (C) 2016 Rob Clark <robclark@freedesktop.org>
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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 FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Authors:
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* Rob Clark <robclark@freedesktop.org>
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*/
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#include "util/list.h"
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#include "util/set.h"
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#include "util/hash_table.h"
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#include "util/u_string.h"
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#include "freedreno_batch.h"
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#include "freedreno_context.h"
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#include "freedreno_fence.h"
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#include "freedreno_resource.h"
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#include "freedreno_query_hw.h"
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static void
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batch_init(struct fd_batch *batch)
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{
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struct fd_context *ctx = batch->ctx;
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unsigned size = 0;
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if (ctx->screen->reorder)
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util_queue_fence_init(&batch->flush_fence);
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/* if kernel is too old to support unlimited # of cmd buffers, we
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* have no option but to allocate large worst-case sizes so that
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* we don't need to grow the ringbuffer. Performance is likely to
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* suffer, but there is no good alternative.
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*/
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if ((fd_device_version(ctx->screen->dev) < FD_VERSION_UNLIMITED_CMDS) ||
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(fd_mesa_debug & FD_DBG_NOGROW)){
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size = 0x100000;
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}
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batch->draw = fd_ringbuffer_new(ctx->pipe, size);
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if (!batch->nondraw) {
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batch->binning = fd_ringbuffer_new(ctx->pipe, size);
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batch->gmem = fd_ringbuffer_new(ctx->pipe, size);
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fd_ringbuffer_set_parent(batch->gmem, NULL);
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fd_ringbuffer_set_parent(batch->draw, batch->gmem);
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fd_ringbuffer_set_parent(batch->binning, batch->gmem);
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} else {
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fd_ringbuffer_set_parent(batch->draw, NULL);
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}
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batch->in_fence_fd = -1;
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batch->fence = fd_fence_create(batch);
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batch->cleared = batch->partial_cleared = 0;
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batch->restore = batch->resolve = 0;
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batch->needs_flush = false;
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batch->gmem_reason = 0;
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batch->num_draws = 0;
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batch->stage = FD_STAGE_NULL;
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fd_reset_wfi(batch);
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/* reset maximal bounds: */
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batch->max_scissor.minx = batch->max_scissor.miny = ~0;
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batch->max_scissor.maxx = batch->max_scissor.maxy = 0;
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util_dynarray_init(&batch->draw_patches, NULL);
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if (is_a3xx(ctx->screen))
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util_dynarray_init(&batch->rbrc_patches, NULL);
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assert(batch->resources->entries == 0);
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util_dynarray_init(&batch->samples, NULL);
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}
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struct fd_batch *
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fd_batch_create(struct fd_context *ctx, bool nondraw)
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{
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struct fd_batch *batch = CALLOC_STRUCT(fd_batch);
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if (!batch)
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return NULL;
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DBG("%p", batch);
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pipe_reference_init(&batch->reference, 1);
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batch->ctx = ctx;
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batch->nondraw = nondraw;
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batch->resources = _mesa_set_create(NULL, _mesa_hash_pointer,
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_mesa_key_pointer_equal);
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batch_init(batch);
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return batch;
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}
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static void
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batch_fini(struct fd_batch *batch)
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{
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pipe_resource_reference(&batch->query_buf, NULL);
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if (batch->in_fence_fd != -1)
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close(batch->in_fence_fd);
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/* in case batch wasn't flushed but fence was created: */
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fd_fence_populate(batch->fence, 0, -1);
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fd_fence_ref(NULL, &batch->fence, NULL);
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fd_ringbuffer_del(batch->draw);
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if (!batch->nondraw) {
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fd_ringbuffer_del(batch->binning);
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fd_ringbuffer_del(batch->gmem);
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} else {
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debug_assert(!batch->binning);
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debug_assert(!batch->gmem);
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}
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if (batch->lrz_clear) {
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fd_ringbuffer_del(batch->lrz_clear);
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batch->lrz_clear = NULL;
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}
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util_dynarray_fini(&batch->draw_patches);
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if (is_a3xx(batch->ctx->screen))
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util_dynarray_fini(&batch->rbrc_patches);
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while (batch->samples.size > 0) {
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struct fd_hw_sample *samp =
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util_dynarray_pop(&batch->samples, struct fd_hw_sample *);
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fd_hw_sample_reference(batch->ctx, &samp, NULL);
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}
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util_dynarray_fini(&batch->samples);
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if (batch->ctx->screen->reorder)
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util_queue_fence_destroy(&batch->flush_fence);
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}
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static void
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batch_flush_reset_dependencies(struct fd_batch *batch, bool flush)
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{
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struct fd_batch_cache *cache = &batch->ctx->screen->batch_cache;
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struct fd_batch *dep;
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foreach_batch(dep, cache, batch->dependents_mask) {
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if (flush)
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fd_batch_flush(dep, false, false);
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fd_batch_reference(&dep, NULL);
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}
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batch->dependents_mask = 0;
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}
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static void
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batch_reset_resources_locked(struct fd_batch *batch)
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{
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struct set_entry *entry;
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pipe_mutex_assert_locked(batch->ctx->screen->lock);
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set_foreach(batch->resources, entry) {
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struct fd_resource *rsc = (struct fd_resource *)entry->key;
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_mesa_set_remove(batch->resources, entry);
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debug_assert(rsc->batch_mask & (1 << batch->idx));
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rsc->batch_mask &= ~(1 << batch->idx);
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if (rsc->write_batch == batch)
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fd_batch_reference_locked(&rsc->write_batch, NULL);
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}
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}
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static void
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batch_reset_resources(struct fd_batch *batch)
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{
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mtx_lock(&batch->ctx->screen->lock);
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batch_reset_resources_locked(batch);
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mtx_unlock(&batch->ctx->screen->lock);
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}
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static void
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batch_reset(struct fd_batch *batch)
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{
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DBG("%p", batch);
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fd_batch_sync(batch);
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batch_flush_reset_dependencies(batch, false);
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batch_reset_resources(batch);
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batch_fini(batch);
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batch_init(batch);
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}
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void
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fd_batch_reset(struct fd_batch *batch)
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{
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if (batch->needs_flush)
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batch_reset(batch);
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}
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void
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__fd_batch_destroy(struct fd_batch *batch)
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{
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DBG("%p", batch);
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util_copy_framebuffer_state(&batch->framebuffer, NULL);
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mtx_lock(&batch->ctx->screen->lock);
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fd_bc_invalidate_batch(batch, true);
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mtx_unlock(&batch->ctx->screen->lock);
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batch_fini(batch);
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batch_reset_resources(batch);
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debug_assert(batch->resources->entries == 0);
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_mesa_set_destroy(batch->resources, NULL);
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batch_flush_reset_dependencies(batch, false);
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debug_assert(batch->dependents_mask == 0);
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free(batch);
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}
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void
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__fd_batch_describe(char* buf, const struct fd_batch *batch)
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{
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util_sprintf(buf, "fd_batch<%u>", batch->seqno);
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}
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void
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fd_batch_sync(struct fd_batch *batch)
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{
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if (!batch->ctx->screen->reorder)
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return;
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util_queue_fence_wait(&batch->flush_fence);
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}
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static void
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batch_flush_func(void *job, int id)
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{
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struct fd_batch *batch = job;
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fd_gmem_render_tiles(batch);
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batch_reset_resources(batch);
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}
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static void
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batch_cleanup_func(void *job, int id)
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{
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struct fd_batch *batch = job;
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fd_batch_reference(&batch, NULL);
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}
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static void
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batch_flush(struct fd_batch *batch, bool force)
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{
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DBG("%p: needs_flush=%d", batch, batch->needs_flush);
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if (!batch->needs_flush) {
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if (force) {
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fd_gmem_render_noop(batch);
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goto out;
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}
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return;
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}
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batch->needs_flush = false;
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/* close out the draw cmds by making sure any active queries are
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* paused:
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*/
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fd_batch_set_stage(batch, FD_STAGE_NULL);
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fd_context_all_dirty(batch->ctx);
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batch_flush_reset_dependencies(batch, true);
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if (batch->ctx->screen->reorder) {
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struct fd_batch *tmp = NULL;
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fd_batch_reference(&tmp, batch);
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if (!util_queue_is_initialized(&batch->ctx->flush_queue))
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util_queue_init(&batch->ctx->flush_queue, "flush_queue", 16, 1, 0);
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util_queue_add_job(&batch->ctx->flush_queue,
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batch, &batch->flush_fence,
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batch_flush_func, batch_cleanup_func);
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} else {
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fd_gmem_render_tiles(batch);
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batch_reset_resources(batch);
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}
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debug_assert(batch->reference.count > 0);
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out:
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if (batch == batch->ctx->batch) {
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batch_reset(batch);
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} else {
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mtx_lock(&batch->ctx->screen->lock);
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fd_bc_invalidate_batch(batch, false);
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mtx_unlock(&batch->ctx->screen->lock);
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}
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}
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/* NOTE: could drop the last ref to batch
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*
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* @sync: synchronize with flush_queue, ensures batch is *actually* flushed
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* to kernel before this returns, as opposed to just being queued to be
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* flushed
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* @force: force a flush even if no rendering, mostly useful if you need
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* a fence to sync on
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*/
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void
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fd_batch_flush(struct fd_batch *batch, bool sync, bool force)
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{
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/* NOTE: we need to hold an extra ref across the body of flush,
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* since the last ref to this batch could be dropped when cleaning
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* up used_resources
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*/
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struct fd_batch *tmp = NULL;
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fd_batch_reference(&tmp, batch);
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batch_flush(tmp, force);
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if (sync)
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fd_batch_sync(tmp);
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fd_batch_reference(&tmp, NULL);
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}
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/* does 'batch' depend directly or indirectly on 'other' ? */
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static bool
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batch_depends_on(struct fd_batch *batch, struct fd_batch *other)
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{
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struct fd_batch_cache *cache = &batch->ctx->screen->batch_cache;
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struct fd_batch *dep;
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if (batch->dependents_mask & (1 << other->idx))
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return true;
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foreach_batch(dep, cache, batch->dependents_mask)
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if (batch_depends_on(batch, dep))
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return true;
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return false;
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}
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void
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fd_batch_add_dep(struct fd_batch *batch, struct fd_batch *dep)
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{
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if (batch->dependents_mask & (1 << dep->idx))
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return;
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/* if the new depedency already depends on us, we need to flush
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* to avoid a loop in the dependency graph.
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*/
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if (batch_depends_on(dep, batch)) {
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DBG("%p: flush forced on %p!", batch, dep);
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mtx_unlock(&batch->ctx->screen->lock);
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fd_batch_flush(dep, false, false);
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mtx_lock(&batch->ctx->screen->lock);
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} else {
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struct fd_batch *other = NULL;
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fd_batch_reference_locked(&other, dep);
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batch->dependents_mask |= (1 << dep->idx);
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DBG("%p: added dependency on %p", batch, dep);
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}
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}
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void
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fd_batch_resource_used(struct fd_batch *batch, struct fd_resource *rsc, bool write)
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{
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pipe_mutex_assert_locked(batch->ctx->screen->lock);
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if (rsc->stencil)
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fd_batch_resource_used(batch, rsc->stencil, write);
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DBG("%p: %s %p", batch, write ? "write" : "read", rsc);
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if (write)
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rsc->valid = true;
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/* note, invalidate write batch, to avoid further writes to rsc
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* resulting in a write-after-read hazard.
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*/
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if (write) {
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/* if we are pending read or write by any other batch: */
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if (rsc->batch_mask != (1 << batch->idx)) {
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struct fd_batch_cache *cache = &batch->ctx->screen->batch_cache;
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struct fd_batch *dep;
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foreach_batch(dep, cache, rsc->batch_mask) {
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struct fd_batch *b = NULL;
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if (dep == batch)
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continue;
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/* note that batch_add_dep could flush and unref dep, so
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* we need to hold a reference to keep it live for the
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* fd_bc_invalidate_batch()
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*/
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fd_batch_reference(&b, dep);
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fd_batch_add_dep(batch, b);
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fd_bc_invalidate_batch(b, false);
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fd_batch_reference_locked(&b, NULL);
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}
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}
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fd_batch_reference_locked(&rsc->write_batch, batch);
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} else {
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if (rsc->write_batch) {
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fd_batch_add_dep(batch, rsc->write_batch);
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fd_bc_invalidate_batch(rsc->write_batch, false);
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}
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}
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if (rsc->batch_mask & (1 << batch->idx))
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return;
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debug_assert(!_mesa_set_search(batch->resources, rsc));
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_mesa_set_add(batch->resources, rsc);
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rsc->batch_mask |= (1 << batch->idx);
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}
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void
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fd_batch_check_size(struct fd_batch *batch)
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{
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if (fd_device_version(batch->ctx->screen->dev) >= FD_VERSION_UNLIMITED_CMDS)
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return;
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struct fd_ringbuffer *ring = batch->draw;
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if (((ring->cur - ring->start) > (ring->size/4 - 0x1000)) ||
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(fd_mesa_debug & FD_DBG_FLUSH))
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fd_batch_flush(batch, true, false);
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}
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/* emit a WAIT_FOR_IDLE only if needed, ie. if there has not already
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* been one since last draw:
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*/
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void
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fd_wfi(struct fd_batch *batch, struct fd_ringbuffer *ring)
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{
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if (batch->needs_wfi) {
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if (batch->ctx->screen->gpu_id >= 500)
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OUT_WFI5(ring);
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else
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OUT_WFI(ring);
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batch->needs_wfi = false;
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}
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}
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