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9522eb7be1
We clearly don't need a hash here since we're never searching for BOs that are in a pool. Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6494>
101 lines
3.2 KiB
C
101 lines
3.2 KiB
C
/*
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* © Copyright 2017-2018 Alyssa Rosenzweig
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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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#ifndef __PAN_POOL_H__
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#define __PAN_POOL_H__
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#include <stddef.h>
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#include <midgard_pack.h>
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#include "util/u_dynarray.h"
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/* Represents a pool of memory that can only grow, used to allocate objects
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* with the same lifetime as the pool itself. In OpenGL, a pool is owned by the
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* batch for transient structures. In Vulkan, it may be owned by e.g. the
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* command pool */
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struct pan_pool {
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/* Parent device for allocation */
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struct panfrost_device *dev;
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/* BOs allocated by this pool */
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struct util_dynarray bos;
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/* Current transient BO */
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struct panfrost_bo *transient_bo;
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/* Within the topmost transient BO, how much has been used? */
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unsigned transient_offset;
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/* BO flags to use in the pool */
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unsigned create_flags;
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};
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void
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panfrost_pool_init(struct pan_pool *pool, void *memctx,
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struct panfrost_device *dev, unsigned create_flags,
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bool prealloc);
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void
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panfrost_pool_cleanup(struct pan_pool *pool);
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static inline unsigned
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panfrost_pool_num_bos(struct pan_pool *pool)
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{
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return util_dynarray_num_elements(&pool->bos, struct panfrost_bo *);
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}
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void
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panfrost_pool_get_bo_handles(struct pan_pool *pool, uint32_t *handles);
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/* Represents a fat pointer for GPU-mapped memory, returned from the transient
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* allocator and not used for much else */
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struct panfrost_transfer {
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uint8_t *cpu;
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mali_ptr gpu;
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};
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struct panfrost_transfer
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panfrost_pool_alloc_aligned(struct pan_pool *pool, size_t sz, unsigned alignment);
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/* Default to self-alignment */
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static inline struct panfrost_transfer
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panfrost_pool_alloc(struct pan_pool *pool, size_t sz)
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{
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assert(sz == util_next_power_of_two(sz));
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return panfrost_pool_alloc_aligned(pool, sz, sz);
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}
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struct panfrost_transfer
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panfrost_pool_alloc(struct pan_pool *pool, size_t sz);
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mali_ptr
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panfrost_pool_upload(struct pan_pool *pool, const void *data, size_t sz);
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mali_ptr
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panfrost_pool_upload_aligned(struct pan_pool *pool, const void *data, size_t sz, unsigned alignment);
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#endif
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