diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2018-06-29 11:36:30 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-07-24 15:03:18 +0300 |
| commit | a833280b4aeeb3152369a3d5bcdc09447fea8358 (patch) | |
| tree | f1be3c36f8e36b261fd2c94b0424435c60102b43 /arch/powerpc/include/asm/book3s/64/mmu-hash.h | |
| parent | 1531cff44b5bb30c899404c044805ec60b2f3620 (diff) | |
| download | linux-a833280b4aeeb3152369a3d5bcdc09447fea8358.tar.xz | |
powerpc/mm/hash: Add hpte_get_old_v and use that instead of opencoding
No functional change
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/book3s/64/mmu-hash.h')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/mmu-hash.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/mmu-hash.h b/arch/powerpc/include/asm/book3s/64/mmu-hash.h index 50ed64fba4ae..eee0b5b8a23f 100644 --- a/arch/powerpc/include/asm/book3s/64/mmu-hash.h +++ b/arch/powerpc/include/asm/book3s/64/mmu-hash.h @@ -364,6 +364,16 @@ static inline unsigned long hpte_new_to_old_r(unsigned long r) return r & ~HPTE_R_3_0_SSIZE_MASK; } +static inline unsigned long hpte_get_old_v(struct hash_pte *hptep) +{ + unsigned long hpte_v; + + hpte_v = be64_to_cpu(hptep->v); + if (cpu_has_feature(CPU_FTR_ARCH_300)) + hpte_v = hpte_new_to_old_v(hpte_v, be64_to_cpu(hptep->r)); + return hpte_v; +} + /* * This function sets the AVPN and L fields of the HPTE appropriately * using the base page size and actual page size. |