diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2010-10-12 16:39:44 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-10-12 16:39:53 +0200 |
| commit | 8ffcfa4e2d96342180e02dfe1230b97778c52d72 (patch) | |
| tree | 77255a0235022444fe958ab1092fb352e6222b72 /arch/x86/include/asm/irq_remapping.h | |
| parent | b683de2b3cb17bb10fa6fd4af614dc75b5749fe0 (diff) | |
| parent | fa47f7e52874683a9659df2f1f143105f676dc0f (diff) | |
Merge branch 'x86/x2apic' into irq/sparseirq
Reason: Avoid conflicts with the x2apic modifications
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/include/asm/irq_remapping.h')
| -rw-r--r-- | arch/x86/include/asm/irq_remapping.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/x86/include/asm/irq_remapping.h b/arch/x86/include/asm/irq_remapping.h index f275e224450..8d841505344 100644 --- a/arch/x86/include/asm/irq_remapping.h +++ b/arch/x86/include/asm/irq_remapping.h @@ -3,4 +3,31 @@ #define IRTE_DEST(dest) ((x2apic_mode) ? dest : dest << 8) +#ifdef CONFIG_INTR_REMAP +static inline void prepare_irte(struct irte *irte, int vector, + unsigned int dest) +{ + memset(irte, 0, sizeof(*irte)); + + irte->present = 1; + irte->dst_mode = apic->irq_dest_mode; + /* + * Trigger mode in the IRTE will always be edge, and for IO-APIC, the + * actual level or edge trigger will be setup in the IO-APIC + * RTE. This will help simplify level triggered irq migration. + * For more details, see the comments (in io_apic.c) explainig IO-APIC + * irq migration in the presence of interrupt-remapping. + */ + irte->trigger_mode = 0; + irte->dlvry_mode = apic->irq_delivery_mode; + irte->vector = vector; + irte->dest_id = IRTE_DEST(dest); + irte->redir_hint = 1; +} +#else +static void prepare_irte(struct irte *irte, int vector, unsigned int dest) +{ +} +#endif + #endif /* _ASM_X86_IRQ_REMAPPING_H */ |