On 08/24/2015 02:31 AM, Zhao Qiang wrote:
Bytes alignment is required to manage some special RAM, so add gen_pool_first_fit_align to genalloc, meanwhile add gen_pool_alloc_data to pass data to gen_pool_first_fit_align(modify gen_pool_alloc as a wrapper)Signed-off-by: Zhao Qiang <qiang.z...@freescale.com> --- Changes for v6: - patches set v6 include a new patch because of using - genalloc to manage QE MURAM, patch 0001 is the new - patch, adding bytes alignment for allocation for use. include/linux/genalloc.h | 23 +++++++++++++++---- lib/genalloc.c | 58 +++++++++++++++++++++++++++++++++++++++++++----- 2 files changed, 72 insertions(+), 9 deletions(-) diff --git a/include/linux/genalloc.h b/include/linux/genalloc.h index 1ccaab4..55da07e 100644 --- a/include/linux/genalloc.h +++ b/include/linux/genalloc.h @@ -34,6 +34,7 @@ struct device; struct device_node; +struct gen_pool; /** * Allocation callback function type definition @@ -47,7 +48,7 @@ typedef unsigned long (*genpool_algo_t)(unsigned long *map, unsigned long size, unsigned long start, unsigned int nr, - void *data); + void *data, struct gen_pool *pool); /* * General purpose special memory pool descriptor. @@ -73,6 +74,13 @@ struct gen_pool_chunk { 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 */ +}; +
(sorry for chiming in late, I've been traveling) Is there an advantage here to wrapping this in a structure instead of just passing a pointer to an align integer? Thanks, Laura _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
