AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/arch/x86/kernel/apic
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Weidong Han 746cddd37d x86, intr-remap: fix eoi for interrupt remapping without x2apic 
To simplify level irq migration in the presence of interrupt-remapping,
Suresh used a virtual vector (io-apic pin number) to eliminate io-apic
RTE modification. Level triggered interrupt will appear as an edge to
the local apic cpu but still as level to the IO-APIC. So in addition to
do the local apic EOI, it still needs to do IO-APIC directed EOI to clear
the remote IRR bit in the IO-APIC RTE. Pls refer to Suresh's patch for
more details (commit 0280f7c416).

Now interrupt remapping is decoupled from x2apic, it also needs to do the
directed EOI for apic. Otherwise, apic interrupts won't work correctly.

Signed-off-by: Weidong Han <weidong.han@intel.com>
Cc: iommu@lists.linux-foundation.org
Cc: Weidong Han <weidong.han@intel.com>
Cc: suresh.b.siddha@intel.com
Cc: dwmw2@infradead.org
Cc: allen.m.kay@intel.com
LKML-Reference: <1239355037-22856-1-git-send-email-weidong.han@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-10 13:12:17 +02:00
..
apic_flat_64.c x86: make 64 bit to use default_inquire_remote_apic 2009-04-08 17:36:12 +02:00
apic.c Intel IOMMU Suspend/Resume Support - Interrupt Remapping 2009-04-03 21:45:59 +01:00
bigsmp_32.c cpumask: use new cpumask functions throughout x86 2009-03-13 14:49:54 +10:30
es7000_32.c cpumask: remove x86 cpumask_t uses. 2009-03-13 14:49:57 +10:30
io_apic.c x86, intr-remap: fix eoi for interrupt remapping without x2apic 2009-04-10 13:12:17 +02:00
ipi.c
Makefile x86, apic: separate 32-bit setup functionality out of apic_32.c 2009-02-17 23:12:48 +01:00
nmi.c cpumask: convert arch/x86/kernel/nmi.c's backtrace_mask to a cpumask_var_t 2009-03-13 14:49:49 +10:30
numaq_32.c cpumask: remove x86 cpumask_t uses. 2009-03-13 14:49:57 +10:30
probe_32.c cpumask: remove cpumask_t assignment from vector_allocation_domain() 2009-03-13 14:49:56 +10:30
probe_64.c x86, x2apic: cleanup ifdef CONFIG_INTR_REMAP in io_apic code 2009-03-17 15:45:07 -07:00
summit_32.c cpumask: remove x86 cpumask_t uses. 2009-03-13 14:49:57 +10:30
x2apic_cluster.c x86: add x2apic_wrmsr_fence() to x2apic flush tlb paths 2009-03-18 09:36:14 +01:00
x2apic_phys.c x86: add x2apic_wrmsr_fence() to x2apic flush tlb paths 2009-03-18 09:36:14 +01:00
x2apic_uv_x.c sgi-gru: add macros for using the UV hub to send interrupts 2009-04-02 19:05:05 -07:00