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authorNicholas Piggin <npiggin@gmail.com>2018-07-05 18:47:00 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2018-07-16 11:37:21 +1000
commit2bf1071a8d50928a4ae366bb3108833166c2b70c (patch)
treeebffef07f7ebbb9bb1ba231c4cb8ff00cc6fd795 /arch/powerpc/mm/mmu_context_book3s64.c
parentce397d215ccd07b8ae3f71db689aedb85d56ab40 (diff)
powerpc/64s: Remove POWER9 DD1 support
POWER9 DD1 was never a product. It is no longer supported by upstream firmware, and it is not effectively supported in Linux due to lack of testing. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Michael Ellerman <mpe@ellerman.id.au> [mpe: Remove arch_make_huge_pte() entirely] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/mm/mmu_context_book3s64.c')
-rw-r--r--arch/powerpc/mm/mmu_context_book3s64.c12
1 files changed, 2 insertions, 10 deletions
diff --git a/arch/powerpc/mm/mmu_context_book3s64.c b/arch/powerpc/mm/mmu_context_book3s64.c
index f3d4b4a0e561..39e9ef0eb78b 100644
--- a/arch/powerpc/mm/mmu_context_book3s64.c
+++ b/arch/powerpc/mm/mmu_context_book3s64.c
@@ -273,15 +273,7 @@ void arch_exit_mmap(struct mm_struct *mm)
#ifdef CONFIG_PPC_RADIX_MMU
void radix__switch_mmu_context(struct mm_struct *prev, struct mm_struct *next)
{
-
- if (cpu_has_feature(CPU_FTR_POWER9_DD1)) {
- isync();
- mtspr(SPRN_PID, next->context.id);
- isync();
- asm volatile(PPC_INVALIDATE_ERAT : : :"memory");
- } else {
- mtspr(SPRN_PID, next->context.id);
- isync();
- }
+ mtspr(SPRN_PID, next->context.id);
+ isync();
}
#endif