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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-24 00:34:59 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-24 00:34:59 +0200 |
| commit | ad5e427e0f6b702e52c11d1f7b2b7be3bac7de82 (patch) | |
| tree | c9eea644eb2a80b94e7132247becf6a0307df3e6 | |
| parent | Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/k... (diff) | |
| parent | parisc: Flush ITLB in flush_tlb_all_local() only on split TLB machines (diff) | |
| download | linux-ad5e427e0f6b702e52c11d1f7b2b7be3bac7de82.tar.xz linux-ad5e427e0f6b702e52c11d1f7b2b7be3bac7de82.zip | |
Merge branch 'parisc-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fixes from Helge Deller:
- Fix build issues when kprobes are enabled
- Speed up ITLB/DTLB cache flushes when running on machines with
combined TLBs
* 'parisc-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Flush ITLB in flush_tlb_all_local() only on split TLB machines
parisc: add kprobe_fault_handler()
| -rw-r--r-- | arch/parisc/include/asm/kprobes.h | 4 | ||||
| -rw-r--r-- | arch/parisc/kernel/pacache.S | 3 |
2 files changed, 6 insertions, 1 deletions
diff --git a/arch/parisc/include/asm/kprobes.h b/arch/parisc/include/asm/kprobes.h index e09cf2deeafe..904034da4974 100644 --- a/arch/parisc/include/asm/kprobes.h +++ b/arch/parisc/include/asm/kprobes.h @@ -50,6 +50,10 @@ struct kprobe_ctlblk { int __kprobes parisc_kprobe_break_handler(struct pt_regs *regs); int __kprobes parisc_kprobe_ss_handler(struct pt_regs *regs); +static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr) +{ + return 0; +} #endif /* CONFIG_KPROBES */ #endif /* _PARISC_KPROBES_H */ diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S index ba67893a1d72..df46b0e5a915 100644 --- a/arch/parisc/kernel/pacache.S +++ b/arch/parisc/kernel/pacache.S @@ -63,7 +63,7 @@ ENTRY_CFI(flush_tlb_all_local) /* Flush Instruction Tlb */ - LDREG ITLB_SID_BASE(%r1), %r20 +88: LDREG ITLB_SID_BASE(%r1), %r20 LDREG ITLB_SID_STRIDE(%r1), %r21 LDREG ITLB_SID_COUNT(%r1), %r22 LDREG ITLB_OFF_BASE(%r1), %arg0 @@ -103,6 +103,7 @@ fitonemiddle: /* Loop if LOOP = 1 */ add %r21, %r20, %r20 /* increment space */ fitdone: + ALTERNATIVE(88b, fitdone, ALT_COND_NO_SPLIT_TLB, INSN_NOP) /* Flush Data Tlb */ |