mirror of https://gitlab.freedesktop.org/mesa/mesa
156 lines
5.4 KiB
C
156 lines
5.4 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 "panvk_mempool.h"
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#include "pan_device.h"
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/* Knockoff u_upload_mgr. Uploads wherever we left off, allocating new entries
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* when needed.
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*
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* In "owned" mode, a single parent owns the entire pool, and the pool owns all
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* created BOs. All BOs are tracked and addable as
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* panvk_pool_get_bo_handles. Freeing occurs at the level of an entire pool.
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* This is useful for streaming uploads, where the batch owns the pool.
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*
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* In "unowned" mode, the pool is freestanding. It does not track created BOs
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* or hold references. Instead, the consumer must manage the created BOs. This
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* is more flexible, enabling non-transient CSO state or shader code to be
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* packed with conservative lifetime handling.
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*/
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static struct panfrost_bo *
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panvk_pool_alloc_backing(struct panvk_pool *pool, size_t bo_sz)
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{
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struct panfrost_bo *bo;
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/* If there's a free BO in our BO pool, let's pick it. */
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if (pool->bo_pool && bo_sz == pool->base.slab_size &&
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util_dynarray_num_elements(&pool->bo_pool->free_bos,
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struct panfrost_bo *)) {
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bo = util_dynarray_pop(&pool->bo_pool->free_bos, struct panfrost_bo *);
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} else {
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/* We don't know what the BO will be used for, so let's flag it
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* RW and attach it to both the fragment and vertex/tiler jobs.
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* TODO: if we want fine grained BO assignment we should pass
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* flags to this function and keep the read/write,
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* fragment/vertex+tiler pools separate.
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*/
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bo = panfrost_bo_create(pool->base.dev, bo_sz, pool->base.create_flags,
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pool->base.label);
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}
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if (bo->size == pool->base.slab_size)
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util_dynarray_append(&pool->bos, struct panfrost_bo *, bo);
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else
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util_dynarray_append(&pool->big_bos, struct panfrost_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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static struct panfrost_ptr
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panvk_pool_alloc_aligned(struct panvk_pool *pool, size_t sz, unsigned alignment)
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{
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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 panfrost_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->base.slab_size)) {
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bo = panvk_pool_alloc_backing(
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pool, ALIGN_POT(MAX2(pool->base.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 panfrost_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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PAN_POOL_ALLOCATOR(struct panvk_pool, panvk_pool_alloc_aligned)
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void
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panvk_pool_init(struct panvk_pool *pool, struct panfrost_device *dev,
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struct panvk_bo_pool *bo_pool, unsigned create_flags,
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size_t slab_size, const char *label, bool prealloc)
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{
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memset(pool, 0, sizeof(*pool));
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pan_pool_init(&pool->base, dev, create_flags, slab_size, label);
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pool->bo_pool = bo_pool;
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util_dynarray_init(&pool->bos, NULL);
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util_dynarray_init(&pool->big_bos, NULL);
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if (prealloc)
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panvk_pool_alloc_backing(pool, pool->base.slab_size);
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}
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void
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panvk_pool_reset(struct panvk_pool *pool)
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{
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if (pool->bo_pool) {
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unsigned num_bos = panvk_pool_num_bos(pool);
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void *ptr = util_dynarray_grow(&pool->bo_pool->free_bos,
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struct panfrost_bo *, num_bos);
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memcpy(ptr, util_dynarray_begin(&pool->bos),
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num_bos * sizeof(struct panfrost_bo *));
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} else {
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util_dynarray_foreach(&pool->bos, struct panfrost_bo *, bo)
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panfrost_bo_unreference(*bo);
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}
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util_dynarray_foreach(&pool->big_bos, struct panfrost_bo *, bo)
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panfrost_bo_unreference(*bo);
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util_dynarray_clear(&pool->bos);
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util_dynarray_clear(&pool->big_bos);
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pool->transient_bo = NULL;
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}
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void
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panvk_pool_cleanup(struct panvk_pool *pool)
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{
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panvk_pool_reset(pool);
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util_dynarray_fini(&pool->bos);
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util_dynarray_fini(&pool->big_bos);
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}
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void
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panvk_pool_get_bo_handles(struct panvk_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 panfrost_bo *, bo) {
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assert((*bo)->gem_handle > 0);
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handles[idx++] = (*bo)->gem_handle;
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}
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}
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