diff options
| author | Ingo Molnar <mingo@kernel.org> | 2017-08-10 16:49:46 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-08-10 16:49:46 +0200 |
| commit | 636bf35880e5a79c2ecb10640137bbd9a4681cb7 (patch) | |
| tree | 919ea9ac007b72acb92a99fb7e28c8238a69573f /arch/powerpc/kernel/irq.c | |
| parent | 276c87054751bb6adfa160a6e68e47b97592a897 (diff) | |
| parent | 8d31f80eb38819e4f2905ad21c0e8998382a08f7 (diff) | |
Merge branch 'linus' into x86/platform, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/powerpc/kernel/irq.c')
| -rw-r--r-- | arch/powerpc/kernel/irq.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 0bcec745a672..f291f7826abc 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -145,6 +145,19 @@ notrace unsigned int __check_irq_replay(void) /* Clear bit 0 which we wouldn't clear otherwise */ local_paca->irq_happened &= ~PACA_IRQ_HARD_DIS; + if (happened & PACA_IRQ_HARD_DIS) { + /* + * We may have missed a decrementer interrupt if hard disabled. + * Check the decrementer register in case we had a rollover + * while hard disabled. + */ + if (!(happened & PACA_IRQ_DEC)) { + if (decrementer_check_overflow()) { + local_paca->irq_happened |= PACA_IRQ_DEC; + happened |= PACA_IRQ_DEC; + } + } + } /* * Force the delivery of pending soft-disabled interrupts on PS3. @@ -170,7 +183,7 @@ notrace unsigned int __check_irq_replay(void) * in case we also had a rollover while hard disabled */ local_paca->irq_happened &= ~PACA_IRQ_DEC; - if ((happened & PACA_IRQ_DEC) || decrementer_check_overflow()) + if (happened & PACA_IRQ_DEC) return 0x900; /* Finally check if an external interrupt happened */ |