[PATCH] powerpc/mm: Update hid register on secondaries too
From: Aneesh Kumar K.V <hidden>
Date: 2016-11-17 10:16:34
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
We need to update on secondaries for the selected MMU mode.
Fixes: ad410674f5606a ("powerpc/mm: Update the HID bit when switching from radix to hash")
Reported-by: Michael Neuling <redacted>
Signed-off-by: Aneesh Kumar K.V <redacted>
---
arch/powerpc/mm/hash_utils_64.c | 4 ++++
arch/powerpc/mm/pgtable-radix.c | 4 ++++
2 files changed, 8 insertions(+)
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index 44d3c3a38e3e..5503078090cd 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c@@ -1029,6 +1029,10 @@ void hash__early_init_mmu_secondary(void) { /* Initialize hash table for that CPU */ if (!firmware_has_feature(FW_FEATURE_LPAR)) { + + if (cpu_has_feature(CPU_FTR_POWER9_DD1)) + update_hid_for_hash(); + if (!cpu_has_feature(CPU_FTR_ARCH_300)) mtspr(SPRN_SDR1, _SDR1); else
diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c
index 735be6821e90..2fc7336619b3 100644
--- a/arch/powerpc/mm/pgtable-radix.c
+++ b/arch/powerpc/mm/pgtable-radix.c@@ -404,6 +404,10 @@ 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);
--
2.10.2