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af78f52493
If the varying descriptors will always be the same for a given shader variant (certainly true if none of separable shaders, transform feedback, or point sprites are used), we only need to link once. Now that pan_pool supports both owned and unowned modes, we have the flexibility to reuse the code path for both allocation strategies. Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10954>
165 lines
5 KiB
C
165 lines
5 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 "pan_bo.h"
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#include "util/u_dynarray.h"
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/* Represents grow-only memory. It may be owned by the batch (OpenGL) or
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* command pool (Vulkan), or may be unowned for persistent uploads. */
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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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/* Label for created BOs */
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const char *label;
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/* BO flags to use in the pool */
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unsigned create_flags;
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/* Minimum size for allocated BOs. */
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size_t slab_size;
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/* Mode of the pool. BO management is in the pool for owned mode, but
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* the consumed for unowned mode. */
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bool owned;
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};
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/* Reference to pool allocated memory for an unowned pool */
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struct pan_pool_ref {
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/* Owning BO */
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struct panfrost_bo *bo;
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/* Mapped GPU VA */
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mali_ptr gpu;
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};
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/* Take a reference to an allocation pool. Call directly after allocating from
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* an unowned pool for correct operation. */
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static inline struct pan_pool_ref
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pan_take_ref(struct pan_pool *pool, mali_ptr ptr)
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{
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if (!pool->owned)
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panfrost_bo_reference(pool->transient_bo);
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return (struct pan_pool_ref) {
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.gpu = ptr,
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.bo = pool->transient_bo
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};
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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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size_t slab_size, const char *label, bool prealloc, bool
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owned);
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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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assert(pool->owned && "pool does not track BOs in unowned mode");
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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_ptr
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panfrost_pool_alloc_aligned(struct pan_pool *pool, size_t sz, unsigned alignment);
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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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struct pan_desc_alloc_info {
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unsigned size;
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unsigned align;
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unsigned nelems;
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};
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#define PAN_DESC_ARRAY(count, name) \
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{ \
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.size = MALI_ ## name ## _LENGTH, \
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.align = MALI_ ## name ## _ALIGN, \
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.nelems = count, \
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}
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#define PAN_DESC(name) PAN_DESC_ARRAY(1, name)
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#define PAN_DESC_AGGREGATE(...) \
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(struct pan_desc_alloc_info[]) { \
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__VA_ARGS__, \
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{ 0 }, \
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}
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static inline struct panfrost_ptr
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panfrost_pool_alloc_descs(struct pan_pool *pool,
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const struct pan_desc_alloc_info *descs)
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{
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unsigned size = 0;
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unsigned align = descs[0].align;
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for (unsigned i = 0; descs[i].size; i++) {
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assert(!(size & (descs[i].align - 1)));
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size += descs[i].size * descs[i].nelems;
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}
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return panfrost_pool_alloc_aligned(pool, size, align);
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}
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#define panfrost_pool_alloc_desc(pool, name) \
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panfrost_pool_alloc_descs(pool, PAN_DESC_AGGREGATE(PAN_DESC(name)))
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#define panfrost_pool_alloc_desc_array(pool, count, name) \
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panfrost_pool_alloc_descs(pool, PAN_DESC_AGGREGATE(PAN_DESC_ARRAY(count, name)))
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#define panfrost_pool_alloc_desc_aggregate(pool, ...) \
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panfrost_pool_alloc_descs(pool, PAN_DESC_AGGREGATE(__VA_ARGS__))
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#endif
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