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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2013-07-02 11:15:18 +0530 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2013-07-08 16:21:13 +0200 |
| commit | 990978e99359e1f3a843563b9f96f9dc7bb7c05a (patch) | |
| tree | 6f71c3c44f428b3a325097f28008dd8576dc50f0 /arch/powerpc/kvm/book3s_hv_cma.h | |
| parent | 6c45b810989d1c04194499d666f695d3f811965f (diff) | |
| download | linux-990978e99359e1f3a843563b9f96f9dc7bb7c05a.tar.bz2 | |
powerpc/kvm: Use 256K chunk to track both RMA and hash page table allocation.
Both RMA and hash page table request will be a multiple of 256K. We can use
a chunk size of 256K to track the free/used 256K chunk in the bitmap. This
should help to reduce the bitmap size.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kvm/book3s_hv_cma.h')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv_cma.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_hv_cma.h b/arch/powerpc/kvm/book3s_hv_cma.h index 788bc3b73104..655144f75fa5 100644 --- a/arch/powerpc/kvm/book3s_hv_cma.h +++ b/arch/powerpc/kvm/book3s_hv_cma.h @@ -14,6 +14,11 @@ #ifndef __POWERPC_KVM_CMA_ALLOC_H__ #define __POWERPC_KVM_CMA_ALLOC_H__ +/* + * Both RMA and Hash page allocation will be multiple of 256K. + */ +#define KVM_CMA_CHUNK_ORDER 18 + extern struct page *kvm_alloc_cma(unsigned long nr_pages, unsigned long align_pages); extern bool kvm_release_cma(struct page *pages, unsigned long nr_pages); |