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authorWill Deacon <will.deacon@arm.com>2018-08-07 14:53:41 +0200
committerCatalin Marinas <catalin.marinas@arm.com>2018-09-14 18:46:22 +0200
commitb8925ee2e12d1cb9a11d6f28b5814f2bfa59dce1 (patch)
tree0f65bfc029abec901e6770e120e85a98a216c5b4 /arch/arm64/mm/fault.c
parentKVM: arm64: Set SCTLR_EL2.DSSBS if SSBD is forcefully disabled and !vhe (diff)
downloadlinux-b8925ee2e12d1cb9a11d6f28b5814f2bfa59dce1.tar.xz
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arm64: cpu: Move errata and feature enable callbacks closer to callers
The cpu errata and feature enable callbacks are only called via their respective arm64_cpu_capabilities structure and therefore shouldn't exist in the global namespace. Move the PAN, RAS and cache maintenance emulation enable callbacks into the same files as their corresponding arm64_cpu_capabilities structures, making them static in the process. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/mm/fault.c')
-rw-r--r--arch/arm64/mm/fault.c14
1 files changed, 0 insertions, 14 deletions
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 50b30ff30de4..6342f1793c70 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -864,17 +864,3 @@ asmlinkage int __exception do_debug_exception(unsigned long addr,
return rv;
}
NOKPROBE_SYMBOL(do_debug_exception);
-
-#ifdef CONFIG_ARM64_PAN
-void cpu_enable_pan(const struct arm64_cpu_capabilities *__unused)
-{
- /*
- * We modify PSTATE. This won't work from irq context as the PSTATE
- * is discarded once we return from the exception.
- */
- WARN_ON_ONCE(in_interrupt());
-
- sysreg_clear_set(sctlr_el1, SCTLR_EL1_SPAN, 0);
- asm(SET_PSTATE_PAN(1));
-}
-#endif /* CONFIG_ARM64_PAN */