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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-12-01 08:40:17 -0500 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-12-01 08:40:17 -0500 |
| commit | a0651c7fa2c088a605f63792279859608ed7f2c8 (patch) | |
| tree | a0cc0a9563fc6766b345e93cf65b54160842cd5b /arch/powerpc/mm | |
| parent | ae753ee2771a1bacade56411bb98037b2545c929 (diff) | |
| parent | 7e4d4233260be0611c7fbdb2730c12731c4b8dc0 (diff) | |
| download | lwn-a0651c7fa2c088a605f63792279859608ed7f2c8.tar.gz lwn-a0651c7fa2c088a605f63792279859608ed7f2c8.zip | |
Merge tag 'powerpc-4.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Two fixes for nasty kexec/kdump crashes in certain configurations.
A couple of minor fixes for the new TIDR code.
A fix for an oops in a CXL error handling path.
Thanks to: Andrew Donnellan, Christophe Lombard, David Gibson, Mahesh
Salgaonkar, Vaibhav Jain"
* tag 'powerpc-4.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: Do not assign thread.tidr if already assigned
powerpc: Avoid signed to unsigned conversion in set_thread_tidr()
powerpc/kexec: Fix kexec/kdump in P9 guest kernels
powerpc/powernv: Fix kexec crashes caused by tlbie tracing
cxl: Check if vphb exists before iterating over AFU devices
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/hash_native_64.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c index 3848af167df9..640cf566e986 100644 --- a/arch/powerpc/mm/hash_native_64.c +++ b/arch/powerpc/mm/hash_native_64.c @@ -47,7 +47,8 @@ DEFINE_RAW_SPINLOCK(native_tlbie_lock); -static inline void __tlbie(unsigned long vpn, int psize, int apsize, int ssize) +static inline unsigned long ___tlbie(unsigned long vpn, int psize, + int apsize, int ssize) { unsigned long va; unsigned int penc; @@ -100,7 +101,15 @@ static inline void __tlbie(unsigned long vpn, int psize, int apsize, int ssize) : "memory"); break; } - trace_tlbie(0, 0, va, 0, 0, 0, 0); + return va; +} + +static inline void __tlbie(unsigned long vpn, int psize, int apsize, int ssize) +{ + unsigned long rb; + + rb = ___tlbie(vpn, psize, apsize, ssize); + trace_tlbie(0, 0, rb, 0, 0, 0, 0); } static inline void __tlbiel(unsigned long vpn, int psize, int apsize, int ssize) @@ -652,7 +661,7 @@ static void native_hpte_clear(void) if (hpte_v & HPTE_V_VALID) { hpte_decode(hptep, slot, &psize, &apsize, &ssize, &vpn); hptep->v = 0; - __tlbie(vpn, psize, apsize, ssize); + ___tlbie(vpn, psize, apsize, ssize); } } |