diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kvm/book3s_32_mmu_host.c | 10 | ||||
| -rw-r--r-- | arch/powerpc/kvm/book3s_64_mmu_host.c | 11 |
2 files changed, 4 insertions, 17 deletions
diff --git a/arch/powerpc/kvm/book3s_32_mmu_host.c b/arch/powerpc/kvm/book3s_32_mmu_host.c index 81ca9dba4098..904f5ac78f54 100644 --- a/arch/powerpc/kvm/book3s_32_mmu_host.c +++ b/arch/powerpc/kvm/book3s_32_mmu_host.c @@ -19,6 +19,7 @@ */ #include <linux/kvm_host.h> +#include <linux/hash.h> #include <asm/kvm_ppc.h> #include <asm/kvm_book3s.h> @@ -162,14 +163,7 @@ static int kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu) * a hash, so we don't waste cycles on looping */ static u16 kvmppc_sid_hash(struct kvm_vcpu *vcpu, u64 gvsid) { - return (u16)(((gvsid >> (SID_MAP_BITS * 7)) & SID_MAP_MASK) ^ - ((gvsid >> (SID_MAP_BITS * 6)) & SID_MAP_MASK) ^ - ((gvsid >> (SID_MAP_BITS * 5)) & SID_MAP_MASK) ^ - ((gvsid >> (SID_MAP_BITS * 4)) & SID_MAP_MASK) ^ - ((gvsid >> (SID_MAP_BITS * 3)) & SID_MAP_MASK) ^ - ((gvsid >> (SID_MAP_BITS * 2)) & SID_MAP_MASK) ^ - ((gvsid >> (SID_MAP_BITS * 1)) & SID_MAP_MASK) ^ - ((gvsid >> (SID_MAP_BITS * 0)) & SID_MAP_MASK)); + return hash_64(gvsid, SID_MAP_BITS); } diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c index eb1d26b64714..4ccdde152c37 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_host.c +++ b/arch/powerpc/kvm/book3s_64_mmu_host.c @@ -20,6 +20,7 @@ */ #include <linux/kvm_host.h> +#include <linux/hash.h> #include <asm/kvm_ppc.h> #include <asm/kvm_book3s.h> @@ -144,17 +145,9 @@ static int kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu) * a hash, so we don't waste cycles on looping */ static u16 kvmppc_sid_hash(struct kvm_vcpu *vcpu, u64 gvsid) { - return (u16)(((gvsid >> (SID_MAP_BITS * 7)) & SID_MAP_MASK) ^ - ((gvsid >> (SID_MAP_BITS * 6)) & SID_MAP_MASK) ^ - ((gvsid >> (SID_MAP_BITS * 5)) & SID_MAP_MASK) ^ - ((gvsid >> (SID_MAP_BITS * 4)) & SID_MAP_MASK) ^ - ((gvsid >> (SID_MAP_BITS * 3)) & SID_MAP_MASK) ^ - ((gvsid >> (SID_MAP_BITS * 2)) & SID_MAP_MASK) ^ - ((gvsid >> (SID_MAP_BITS * 1)) & SID_MAP_MASK) ^ - ((gvsid >> (SID_MAP_BITS * 0)) & SID_MAP_MASK)); + return hash_64(gvsid, SID_MAP_BITS); } - static struct kvmppc_sid_map *find_sid_vsid(struct kvm_vcpu *vcpu, u64 gvsid) { struct kvmppc_sid_map *map; |