diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2015-03-27 01:58:06 -0500 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2015-05-14 17:27:36 +0200 |
| commit | e62cf5210c0c4b51bab803c7a3c8134da866da2b (patch) | |
| tree | 00af06cce5d475755cd3a9f98ec80911654d2eb3 /src/include | |
| parent | b419c1a87ccb2037a88ffb533b5b4a11cfa387c0 (diff) | |
regions: add mmap helper device
In order to facilitate platforms which need a buffer cache
for performing boot device operations provide infrastructure
to share the logic in managing the buffer and operations.
Change-Id: I45dd9f213029706ff92a3e5a2c9edd5e8b541e27
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9132
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/region.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/include/region.h b/src/include/region.h index ed0ad57a28..99ea488cca 100644 --- a/src/include/region.h +++ b/src/include/region.h @@ -22,6 +22,7 @@ #include <stdint.h> #include <stddef.h> +#include <mem_pool.h> /* * Region support. @@ -116,4 +117,20 @@ extern const struct region_device_ops mem_rdev_ops; .rdev = REGION_DEV_INIT(&mem_rdev_ops, 0, (size_)), \ } +struct mmap_helper_region_device { + struct mem_pool pool; + struct region_device rdev; +}; + +#define MMAP_HELPER_REGION_INIT(ops_, offset_, size_) \ + { \ + .rdev = REGION_DEV_INIT((ops_), (offset_), (size_)), \ + } + +void mmap_helper_device_init(struct mmap_helper_region_device *mdev, + void *cache, size_t cache_size); + +void *mmap_helper_rdev_mmap(const struct region_device *, size_t, size_t); +int mmap_helper_rdev_munmap(const struct region_device *, void *); + #endif /* _REGION_H_ */ |