diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2010-10-10 11:39:09 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-10-12 16:53:41 +0200 |
| commit | 423f085952fd7253407cb92984cc2d495a564481 (patch) | |
| tree | 3cd1d0d986d2136a5a4083cdf72c424881ca754f /arch/x86 | |
| parent | d0ad63927c6d4d511e172c78ba4a623539ef6901 (diff) | |
| download | op-kernel-dev-423f085952fd7253407cb92984cc2d495a564481.zip op-kernel-dev-423f085952fd7253407cb92984cc2d495a564481.tar.gz | |
x86: Embedd irq_2_iommu into irq_cfg
That interrupt remapping code is x86 specific and tied to the io_apic
code. No need for separate allocator functions in the interrupt
remapping code. This allows to simplify the code and irq_2_iommu is
small (13 bytes on 64bit) so it's not a real problem even if interrupt
remapping is runtime disabled. If it's compile time disabled the
impact is zero.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/hw_irq.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h index 76848f2..e756c4b 100644 --- a/arch/x86/include/asm/hw_irq.h +++ b/arch/x86/include/asm/hw_irq.h @@ -78,6 +78,13 @@ static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr, irq_attr->polarity = polarity; } +struct irq_2_iommu { + struct intel_iommu *iommu; + u16 irte_index; + u16 sub_handle; + u8 irte_mask; +}; + /* * This is performance-critical, we want to do it O(1) * @@ -89,6 +96,9 @@ struct irq_cfg { cpumask_var_t old_domain; u8 vector; u8 move_in_progress : 1; +#ifdef CONFIG_INTR_REMAP + struct irq_2_iommu irq_2_iommu; +#endif }; extern struct irq_cfg *irq_cfg(unsigned int); |
