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authorDave Airlie <airlied@redhat.com>2016-12-05 17:11:48 +1000
committerDave Airlie <airlied@redhat.com>2016-12-05 17:11:48 +1000
commitf03ee46be9401e3434f52bb15e92d1e640f76438 (patch)
treef0a1819bd3e44902578b80e1a03d1dde1c6099b8 /arch/mips/include/asm/tlb.h
parent0d5320fc194128a1a584a7e91a606cb3af2ded80 (diff)
parent3e5de27e940d00d8d504dfb96625fb654f641509 (diff)
Backmerge tag 'v4.9-rc8' into drm-next
Linux 4.9-rc8 Daniel requested this so we could apply some follow on fixes cleanly to -next.
Diffstat (limited to 'arch/mips/include/asm/tlb.h')
-rw-r--r--arch/mips/include/asm/tlb.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/mips/include/asm/tlb.h b/arch/mips/include/asm/tlb.h
index 4a2349302b55..dd179fd8acda 100644
--- a/arch/mips/include/asm/tlb.h
+++ b/arch/mips/include/asm/tlb.h
@@ -1,6 +1,9 @@
#ifndef __ASM_TLB_H
#define __ASM_TLB_H
+#include <asm/cpu-features.h>
+#include <asm/mipsregs.h>
+
/*
* MIPS doesn't need any special per-pte or per-vma handling, except
* we need to flush cache for area to be unmapped.
@@ -22,6 +25,16 @@
((CKSEG0 + ((idx) << (PAGE_SHIFT + 1))) | \
(cpu_has_tlbinv ? MIPS_ENTRYHI_EHINV : 0))
+static inline unsigned int num_wired_entries(void)
+{
+ unsigned int wired = read_c0_wired();
+
+ if (cpu_has_mips_r6)
+ wired &= MIPSR6_WIRED_WIRED;
+
+ return wired;
+}
+
#include <asm-generic/tlb.h>
#endif /* __ASM_TLB_H */