[PATCH v3 49/70] powerpc/mm/radix: Update PTCR on secondary CPUs
From: Michael Ellerman <mpe@ellerman.id.au>
Date: 2016-04-29 13:27:25
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
From: "Aneesh Kumar K.V" <redacted> Signed-off-by: Aneesh Kumar K.V <redacted> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> --- arch/powerpc/mm/hash_utils_64.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index e6b53cde676e..faaadeff7c1e 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c@@ -896,9 +896,13 @@ void __init hash__early_init_mmu(void) void hash__early_init_mmu_secondary(void) { /* Initialize hash table for that CPU */ - if (!firmware_has_feature(FW_FEATURE_LPAR)) - mtspr(SPRN_SDR1, _SDR1); - + if (!firmware_has_feature(FW_FEATURE_LPAR)) { + if (!cpu_has_feature(CPU_FTR_ARCH_300)) + mtspr(SPRN_SDR1, _SDR1); + else + mtspr(SPRN_PTCR, + __pa(partition_tb) | (PATB_SIZE_SHIFT - 12)); + } /* Initialize SLB */ slb_initialize(); }
--
2.5.0