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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef E24_ALLOC_H
#define E24_ALLOC_H
struct e24_allocation_pool;
struct e24_allocation;
struct e24_allocation_ops {
long (*alloc)(struct e24_allocation_pool *allocation_pool,
u32 size, u32 align, struct e24_allocation **alloc);
void (*free)(struct e24_allocation *allocation);
void (*free_pool)(struct e24_allocation_pool *allocation_pool);
phys_addr_t (*offset)(const struct e24_allocation *allocation);
};
struct e24_allocation_pool {
const struct e24_allocation_ops *ops;
};
struct e24_allocation {
struct e24_allocation_pool *pool;
struct e24_allocation *next;
phys_addr_t start;
u32 size;
atomic_t ref;
};
static inline void e24_free_pool(struct e24_allocation_pool *allocation_pool)
{
allocation_pool->ops->free_pool(allocation_pool);
}
static inline void e24_free(struct e24_allocation *allocation)
{
return allocation->pool->ops->free(allocation);
}
static inline long e24_allocate(struct e24_allocation_pool *allocation_pool,
u32 size, u32 align,
struct e24_allocation **alloc)
{
return allocation_pool->ops->alloc(allocation_pool,
size, align, alloc);
}
static inline void e24_allocation_put(struct e24_allocation *e24_allocation)
{
if (atomic_dec_and_test(&e24_allocation->ref))
e24_allocation->pool->ops->free(e24_allocation);
}
static inline phys_addr_t e24_allocation_offset(const struct e24_allocation *allocation)
{
return allocation->pool->ops->offset(allocation);
}
long e24_init_private_pool(struct e24_allocation_pool **ppool, phys_addr_t start, u32 size);
#endif
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