mirror of https://gitlab.freedesktop.org/mesa/mesa
122 lines
3.6 KiB
C
122 lines
3.6 KiB
C
/*
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* © Copyright 2018 Alyssa Rosenzweig
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* Copyright (C) 2019 Collabora, Ltd.
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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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*/
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#include "agx_bo.h"
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#include "agx_device.h"
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#include "pool.h"
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/* Transient command stream pooling: command stream uploads try to simply copy
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* into whereever we left off. If there isn't space, we allocate a new entry
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* into the pool and copy there */
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#define POOL_SLAB_SIZE (256 * 1024)
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static struct agx_bo *
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agx_pool_alloc_backing(struct agx_pool *pool, size_t bo_sz)
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{
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struct agx_bo *bo = agx_bo_create(pool->dev, bo_sz,
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pool->create_flags);
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util_dynarray_append(&pool->bos, struct agx_bo *, bo);
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pool->transient_bo = bo;
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pool->transient_offset = 0;
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return bo;
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}
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void
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agx_pool_init(struct agx_pool *pool, struct agx_device *dev,
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unsigned create_flags, bool prealloc)
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{
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memset(pool, 0, sizeof(*pool));
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pool->dev = dev;
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pool->create_flags = create_flags;
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util_dynarray_init(&pool->bos, dev->memctx);
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if (prealloc)
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agx_pool_alloc_backing(pool, POOL_SLAB_SIZE);
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}
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void
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agx_pool_cleanup(struct agx_pool *pool)
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{
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util_dynarray_foreach(&pool->bos, struct agx_bo *, bo) {
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agx_bo_unreference(*bo);
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}
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util_dynarray_fini(&pool->bos);
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}
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void
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agx_pool_get_bo_handles(struct agx_pool *pool, uint32_t *handles)
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{
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unsigned idx = 0;
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util_dynarray_foreach(&pool->bos, struct agx_bo *, bo) {
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handles[idx++] = (*bo)->handle;
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}
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}
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struct agx_ptr
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agx_pool_alloc_aligned(struct agx_pool *pool, size_t sz, unsigned alignment)
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{
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alignment = MAX2(alignment, 4096);
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assert(alignment == util_next_power_of_two(alignment));
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/* Find or create a suitable BO */
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struct agx_bo *bo = pool->transient_bo;
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unsigned offset = ALIGN_POT(pool->transient_offset, alignment);
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/* If we don't fit, allocate a new backing */
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if (unlikely(bo == NULL || (offset + sz) >= POOL_SLAB_SIZE)) {
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bo = agx_pool_alloc_backing(pool,
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ALIGN_POT(MAX2(POOL_SLAB_SIZE, sz), 4096));
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offset = 0;
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}
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pool->transient_offset = offset + sz;
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struct agx_ptr ret = {
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.cpu = bo->ptr.cpu + offset,
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.gpu = bo->ptr.gpu + offset,
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};
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return ret;
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}
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uint64_t
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agx_pool_upload(struct agx_pool *pool, const void *data, size_t sz)
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{
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return agx_pool_upload_aligned(pool, data, sz, util_next_power_of_two(sz));
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}
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uint64_t
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agx_pool_upload_aligned(struct agx_pool *pool, const void *data, size_t sz, unsigned alignment)
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{
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alignment = MAX2(alignment, 4096);
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struct agx_ptr transfer = agx_pool_alloc_aligned(pool, sz, alignment);
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memcpy(transfer.cpu, data, sz);
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return transfer.gpu;
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}
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