diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-01-29 18:54:56 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-01-29 18:54:56 -0800 |
| commit | 36c289e72a63c3a4fbb14f84e220a2a75a5bf656 (patch) | |
| tree | 0c9d747adafad5f75f9d3828fcf0c53da705b19b /arch/x86/include/asm | |
| parent | 669c0f762ed19bd9ec128ebc97ae8641b6e1a4a3 (diff) | |
| parent | fe6daab1ee9dfe7f89974ee6c486cccb0f18a61d (diff) | |
Merge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 timer updates from Thomas Gleixner:
"A small set of updates for x86 specific timers:
- Mark TSC invariant on a subset of Centaur CPUs
- Allow TSC calibration without PIT on mobile platforms which lack
legacy devices"
* 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/centaur: Mark TSC invariant
x86/tsc: Introduce early tsc clocksource
x86/time: Unconditionally register legacy timer interrupt
x86/tsc: Allow TSC calibration without PIT
Diffstat (limited to 'arch/x86/include/asm')
| -rw-r--r-- | arch/x86/include/asm/i8259.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/include/asm/i8259.h b/arch/x86/include/asm/i8259.h index c8376b40e882..5cdcdbd4d892 100644 --- a/arch/x86/include/asm/i8259.h +++ b/arch/x86/include/asm/i8259.h @@ -69,6 +69,11 @@ struct legacy_pic { extern struct legacy_pic *legacy_pic; extern struct legacy_pic null_legacy_pic; +static inline bool has_legacy_pic(void) +{ + return legacy_pic != &null_legacy_pic; +} + static inline int nr_legacy_irqs(void) { return legacy_pic->nr_legacy_irqs; |