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* Copyright (C) 2014-2015 Etnaviv Project
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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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* 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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* 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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* Christian Gmeiner <christian.gmeiner@gmail.com>
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#include "etnaviv_drmif.h"
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#include "etnaviv_priv.h"
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static simple_mtx_t idx_lock = _SIMPLE_MTX_INITIALIZER_NP;
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static void *grow(void *ptr, uint32_t nr, uint32_t *max, uint32_t sz)
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if ((nr + 1) > *max) {
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if ((*max * 2) < (nr + 1))
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ptr = realloc(ptr, *max * sz);
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#define APPEND(x, name) ({ \
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(x)->name = grow((x)->name, (x)->nr_ ## name, &(x)->max_ ## name, sizeof((x)->name[0])); \
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(x)->nr_ ## name ++; \
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void etna_cmd_stream_realloc(struct etna_cmd_stream *stream, size_t n)
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* Increase the command buffer size by 4 kiB. Here we pick 4 kiB
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* increment to prevent it from growing too much too quickly.
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size = ALIGN(stream->size + n, 1024);
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/* Command buffer is too big for older kernel versions */
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buffer = realloc(stream->buffer, size * 4);
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stream->buffer = buffer;
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DEBUG_MSG("command buffer too long, forcing flush.");
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etna_cmd_stream_force_flush(stream);
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static inline struct etna_cmd_stream_priv *
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etna_cmd_stream_priv(struct etna_cmd_stream *stream)
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return (struct etna_cmd_stream_priv *)stream;
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struct etna_cmd_stream *etna_cmd_stream_new(struct etna_pipe *pipe,
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void (*force_flush)(struct etna_cmd_stream *stream, void *priv),
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struct etna_cmd_stream_priv *stream = NULL;
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ERROR_MSG("invalid size of 0");
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stream = calloc(1, sizeof(*stream));
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ERROR_MSG("allocation failed");
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/* allocate even number of 32-bit words */
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size = ALIGN(size, 2);
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stream->base.buffer = malloc(size * sizeof(uint32_t));
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if (!stream->base.buffer) {
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ERROR_MSG("allocation failed");
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stream->base.size = size;
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stream->force_flush = force_flush;
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stream->force_flush_priv = priv;
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return &stream->base;
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etna_cmd_stream_del(&stream->base);
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void etna_cmd_stream_del(struct etna_cmd_stream *stream)
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struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
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free(stream->buffer);
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free(priv->submit.relocs);
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free(priv->submit.pmrs);
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void etna_cmd_stream_force_flush(struct etna_cmd_stream *stream)
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struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
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if (priv->force_flush)
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priv->force_flush(stream, priv->force_flush_priv);
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uint32_t etna_cmd_stream_timestamp(struct etna_cmd_stream *stream)
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return etna_cmd_stream_priv(stream)->last_timestamp;
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static uint32_t append_bo(struct etna_cmd_stream *stream, struct etna_bo *bo)
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struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
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simple_mtx_assert_locked(&idx_lock);
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idx = APPEND(&priv->submit, bos);
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idx = APPEND(priv, bos);
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priv->submit.bos[idx].flags = 0;
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priv->submit.bos[idx].handle = bo->handle;
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priv->submit.bos[idx].presumed = bo->va;
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priv->bos[idx] = etna_bo_ref(bo);
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/* add (if needed) bo, return idx: */
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static uint32_t bo2idx(struct etna_cmd_stream *stream, struct etna_bo *bo,
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struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
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simple_mtx_lock(&idx_lock);
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if (bo->current_stream == stream) {
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priv->bo_table = drmHashCreate();
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if (!drmHashLookup(priv->bo_table, bo->handle, &val)) {
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idx = (uint32_t)(uintptr_t)val;
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idx = append_bo(stream, bo);
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val = (void *)(uintptr_t)idx;
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drmHashInsert(priv->bo_table, bo->handle, val);
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bo->current_stream = stream;
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simple_mtx_unlock(&idx_lock);
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if (flags & ETNA_RELOC_READ)
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priv->submit.bos[idx].flags |= ETNA_SUBMIT_BO_READ;
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if (flags & ETNA_RELOC_WRITE)
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priv->submit.bos[idx].flags |= ETNA_SUBMIT_BO_WRITE;
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void etna_cmd_stream_flush(struct etna_cmd_stream *stream, int in_fence_fd,
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int *out_fence_fd, bool is_noop)
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struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
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int ret, id = priv->pipe->id;
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struct etna_gpu *gpu = priv->pipe->gpu;
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struct drm_etnaviv_gem_submit req = {
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.bos = VOID2U64(priv->submit.bos),
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.nr_bos = priv->submit.nr_bos,
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.relocs = VOID2U64(priv->submit.relocs),
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.nr_relocs = priv->submit.nr_relocs,
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.pmrs = VOID2U64(priv->submit.pmrs),
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.nr_pmrs = priv->submit.nr_pmrs,
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.stream = VOID2U64(stream->buffer),
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.stream_size = stream->offset * 4, /* in bytes */
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if (in_fence_fd != -1) {
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req.flags |= ETNA_SUBMIT_FENCE_FD_IN | ETNA_SUBMIT_NO_IMPLICIT;
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req.fence_fd = in_fence_fd;
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req.flags |= ETNA_SUBMIT_FENCE_FD_OUT;
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if (gpu->dev->use_softpin)
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req.flags |= ETNA_SUBMIT_SOFTPIN;
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if (unlikely(is_noop))
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ret = drmCommandWriteRead(gpu->dev->fd, DRM_ETNAVIV_GEM_SUBMIT,
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ERROR_MSG("submit failed: %d (%s)", ret, strerror(errno));
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priv->last_timestamp = req.fence;
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for (uint32_t i = 0; i < priv->nr_bos; i++) {
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struct etna_bo *bo = priv->bos[i];
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bo->current_stream = NULL;
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if (priv->bo_table) {
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drmHashDestroy(priv->bo_table);
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priv->bo_table = NULL;
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*out_fence_fd = req.fence_fd;
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priv->submit.nr_bos = 0;
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priv->submit.nr_relocs = 0;
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priv->submit.nr_pmrs = 0;
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void etna_cmd_stream_reloc(struct etna_cmd_stream *stream,
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const struct etna_reloc *r)
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struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
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struct drm_etnaviv_gem_submit_reloc *reloc;
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uint32_t addr = r->bo->va + r->offset;
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uint32_t bo_idx = bo2idx(stream, r->bo, r->flags);
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if (!priv->pipe->gpu->dev->use_softpin) {
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idx = APPEND(&priv->submit, relocs);
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reloc = &priv->submit.relocs[idx];
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reloc->reloc_idx = bo_idx;
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reloc->reloc_offset = r->offset;
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reloc->submit_offset = stream->offset * 4; /* in bytes */
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etna_cmd_stream_emit(stream, addr);
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void etna_cmd_stream_ref_bo(struct etna_cmd_stream *stream, struct etna_bo *bo,
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bo2idx(stream, bo, flags);
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void etna_cmd_stream_perf(struct etna_cmd_stream *stream, const struct etna_perf *p)
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struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
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struct drm_etnaviv_gem_submit_pmr *pmr;
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uint32_t idx = APPEND(&priv->submit, pmrs);
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pmr = &priv->submit.pmrs[idx];
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pmr->flags = p->flags;
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pmr->sequence = p->sequence;
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pmr->read_offset = p->offset;
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pmr->read_idx = bo2idx(stream, p->bo, ETNA_SUBMIT_BO_READ | ETNA_SUBMIT_BO_WRITE);
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pmr->domain = p->signal->domain->id;
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pmr->signal = p->signal->signal;