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/*
* © Copyright 2017-2018 Alyssa Rosenzweig
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#ifndef __PAN_ALLOCATE_H__
#define __PAN_ALLOCATE_H__
#include <unistd.h>
#include <sys/mman.h>
#include <stdbool.h>
#include "pipebuffer/pb_slab.h"
#include <panfrost-misc.h>
struct panfrost_context;
/* Texture memory */
#define HEAP_TEXTURE 0
/* Single-frame (transient) command stream memory, done at the block scale
* rather than the individual cmdstream alllocation scale. We use pb_alloc for
* pooling, but we have to implement our own logic atop the API for performance
* reasons when considering many low-latency tiny heterogenous allocations */
#define HEAP_TRANSIENT 1
/* Multi-frame descriptor memory (replaces what used to be
* cmdstream_persistent), for long-living small allocations */
#define HEAP_DESCRIPTOR 2
/* Represents a fat pointer for GPU-mapped memory, returned from the transient
* allocator and not used for much else */
struct panfrost_transfer {
uint8_t *cpu;
mali_ptr gpu;
};
struct panfrost_memory {
/* Subclassing slab object */
struct pb_slab slab;
/* Backing for the slab in memory */
uint8_t *cpu;
mali_ptr gpu;
int stack_bottom;
size_t size;
int gem_handle;
};
/* Slab entry sizes range from 2^min to 2^max. In this case, we range from 1k
* to 16MB. Numbers are kind of arbitrary but these seem to work alright in
* practice. */
#define MIN_SLAB_ENTRY_SIZE (10)
#define MAX_SLAB_ENTRY_SIZE (24)
struct panfrost_memory_entry {
/* Subclass */
struct pb_slab_entry base;
/* Have we been freed? */
bool freed;
/* Offset into the slab of the entry */
off_t offset;
};
/* Functions for replay */
mali_ptr pandev_upload(int cheating_offset, int *stack_bottom, mali_ptr base, void *base_map, const void *data, size_t sz, bool no_pad);
mali_ptr pandev_upload_sequential(mali_ptr base, void *base_map, const void *data, size_t sz);
/* Functions for the actual Galliumish driver */
mali_ptr panfrost_upload(struct panfrost_memory *mem, const void *data, size_t sz, bool no_pad);
mali_ptr panfrost_upload_sequential(struct panfrost_memory *mem, const void *data, size_t sz);
struct panfrost_transfer
panfrost_allocate_transient(struct panfrost_context *ctx, size_t sz);
mali_ptr
panfrost_upload_transient(struct panfrost_context *ctx, const void *data, size_t sz);
void *
panfrost_allocate_transfer(struct panfrost_memory *mem, size_t sz, mali_ptr *gpu);
static inline mali_ptr
panfrost_reserve(struct panfrost_memory *mem, size_t sz)
{
mem->stack_bottom += sz;
return mem->gpu + (mem->stack_bottom - sz);
}
struct panfrost_transfer
panfrost_allocate_chunk(struct panfrost_context *ctx, size_t size, unsigned heap_id);
#include <math.h>
#define inff INFINITY
#define R(...) #__VA_ARGS__
#define ALIGN(x, y) (((x) + ((y) - 1)) & ~((y) - 1))
#endif /* __PAN_ALLOCATE_H__ */
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