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| author |   Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2016-11-17 15:46:23 +0530 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2016-11-18 23:16:58 +1100 |
| commit | cac4a185405d4415eca269cae976438b44a37ae0 (patch) | |
| tree | 95feff05d40607ca8e0f556e1eef09fb095d0438 /arch/powerpc/mm/pgtable-radix.c | |
| parent | powerpc/mm/radix: Invalidate ERAT on tlbiel for POWER9 DD1 (diff) | |
| download | linux-dev-cac4a185405d4415eca269cae976438b44a37ae0.tar.xz linux-dev-cac4a185405d4415eca269cae976438b44a37ae0.zip | |
powerpc/mm: Fix missing update of HID register on secondary CPUs
We need to update on secondaries for the selected MMU mode.
Fixes: ad410674f560 ("powerpc/mm: Update the HID bit when switching from radix to hash")
Reported-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/mm/pgtable-radix.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c index ed7bddc456b7..688b54517655 100644 --- a/arch/powerpc/mm/pgtable-radix.c +++ b/arch/powerpc/mm/pgtable-radix.c @@ -388,6 +388,10 @@ void radix__early_init_mmu_secondary(void) * update partition table control register and UPRT */ if (!firmware_has_feature(FW_FEATURE_LPAR)) { + + if (cpu_has_feature(CPU_FTR_POWER9_DD1)) + update_hid_for_radix(); + lpcr = mfspr(SPRN_LPCR); mtspr(SPRN_LPCR, lpcr | LPCR_UPRT | LPCR_HR); |