litmus-rt.git - The LITMUS^RT kernel.

index : litmus-rt.git

The LITMUS^RT kernel.

Bjoern Brandenburg

about summary refs log tree commit diff stats

path: root/kernel/gcov/base.c

diff options

Diffstat (limited to 'kernel/gcov/base.c')

0 files changed, 0 insertions, 0 deletions

eration of this allocator is cmpxchg on long. * On architectures that don't have NMI-safe cmpxchg implementation, * the allocator can NOT be used in NMI handler. So code uses the * allocator in NMI handler should depend on * CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG. * * This source code is licensed under the GNU General Public License, * Version 2. See the file COPYING for more details. */ #ifndef __GENALLOC_H__ #define __GENALLOC_H__ #include <linux/types.h> #include <linux/spinlock_types.h> #include <linux/atomic.h> struct device; struct device_node; struct gen_pool; /** * typedef genpool_algo_t: Allocation callback function type definition * @map: Pointer to bitmap * @size: The bitmap size in bits * @start: The bitnumber to start searching at * @nr: The number of zeroed bits we're looking for * @data: optional additional data used by the callback * @pool: the pool being allocated from */ typedef unsigned long (*genpool_algo_t)(unsigned long *map, unsigned long size, unsigned long start, unsigned int nr, void *data, struct gen_pool *pool, unsigned long start_addr); /* * General purpose special memory pool descriptor. */ struct gen_pool { spinlock_t lock; struct list_head chunks; /* list of chunks in this pool */ int min_alloc_order; /* minimum allocation order */ genpool_algo_t algo; /* allocation function */ void *data; const char *name; }; /* * General purpose special memory pool chunk descriptor. */ struct gen_pool_chunk { struct list_head next_chunk; /* next chunk in pool */ atomic_long_t avail; phys_addr_t phys_addr; /* physical starting address of memory chunk */ unsigned long start_addr; /* start address of memory chunk */ unsigned long end_addr; /* end address of memory chunk (inclusive) */ unsigned long bits[0]; /* bitmap for allocating memory chunk */ }; /* * gen_pool data descriptor for gen_pool_first_fit_align. */ struct genpool_data_align { int align; /* alignment by bytes for starting address */ }; /* * gen_pool data descriptor for gen_pool_fixed_alloc. */ struct genpool_data_fixed { unsigned long offset; /* The offset of the specific region */ }; extern struct gen_pool *gen_pool_create(int, int); extern phys_addr_t gen_pool_virt_to_phys(struct gen_pool *pool, unsigned long); extern int gen_pool_add_virt(struct gen_pool *, unsigned long, phys_addr_t, size_t, int); /** * gen_pool_add - add a new chunk of special memory to the pool


context:
space:
mode: