diff options
| author | Chris Metcalf <cmetcalf@ezchip.com> | 2015-03-23 15:21:23 (GMT) |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@ezchip.com> | 2015-04-17 16:58:44 (GMT) |
| commit | b340c656af6317e28b466996a72cca019d97b42d (patch) | |
| tree | f8be5b9f7db4146ca8cf8e4288d49b9bc7e6105b /arch/tile/include | |
| parent | 9088616fb3c4e0d3ec4efb20378691066a218f9c (diff) | |
| download | linux-b340c656af6317e28b466996a72cca019d97b42d.tar.xz | |
tile: support arch_irq_work_raise
Tile includes a hypervisor hook to deliver messages to arbitrary
tiles, so we can use that to raise an interrupt as soon as
possible on our own core. Unfortunately the Tilera hypervisor
disabled that support on principle in previous releases, but
it will be available in MDE 4.3.4 and later.
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'arch/tile/include')
| -rw-r--r-- | arch/tile/include/asm/Kbuild | 1 | ||||
| -rw-r--r-- | arch/tile/include/asm/irq_work.h | 14 | ||||
| -rw-r--r-- | arch/tile/include/asm/smp.h | 1 |
3 files changed, 15 insertions, 1 deletions
diff --git a/arch/tile/include/asm/Kbuild b/arch/tile/include/asm/Kbuild index b4c488b..f5433e0 100644 --- a/arch/tile/include/asm/Kbuild +++ b/arch/tile/include/asm/Kbuild @@ -16,7 +16,6 @@ generic-y += ioctl.h generic-y += ioctls.h generic-y += ipcbuf.h generic-y += irq_regs.h -generic-y += irq_work.h generic-y += local.h generic-y += local64.h generic-y += mcs_spinlock.h diff --git a/arch/tile/include/asm/irq_work.h b/arch/tile/include/asm/irq_work.h new file mode 100644 index 0000000..48af33a --- /dev/null +++ b/arch/tile/include/asm/irq_work.h @@ -0,0 +1,14 @@ +#ifndef __ASM_IRQ_WORK_H +#define __ASM_IRQ_WORK_H + +static inline bool arch_irq_work_has_interrupt(void) +{ +#ifdef CONFIG_SMP + extern bool self_interrupt_ok; + return self_interrupt_ok; +#else + return false; +#endif +} + +#endif /* __ASM_IRQ_WORK_H */ diff --git a/arch/tile/include/asm/smp.h b/arch/tile/include/asm/smp.h index 9a326b6..735e7f1 100644 --- a/arch/tile/include/asm/smp.h +++ b/arch/tile/include/asm/smp.h @@ -69,6 +69,7 @@ static inline int xy_to_cpu(int x, int y) #define MSG_TAG_STOP_CPU 2 #define MSG_TAG_CALL_FUNCTION_MANY 3 #define MSG_TAG_CALL_FUNCTION_SINGLE 4 +#define MSG_TAG_IRQ_WORK 5 /* Hook for the generic smp_call_function_many() routine. */ static inline void arch_send_call_function_ipi_mask(struct cpumask *mask) |