Suresh Siddha f1c6300183 x86, apic: fix broken legacy interrupts in the logical apic mode ... Recent commit 332afa656e cleaned up a workaround that updates irq_cfg domain for legacy irq's that are handled by the IO-APIC. This was assuming that the recent changes in assign_irq_vector() were sufficient to remove the workaround. But this broke couple of AMD platforms. One of them seems to be sending interrupts to the offline cpu's, resulting in spurious "No irq handler for vector xx (irq -1)" messages when those cpu's come online. And the other platform seems to always send the interrupt to the last logical CPU (cpu-7). Recent changes had an unintended side effect of using only logical cpu-0 in the IO-APIC RTE (during boot for the legacy interrupts) and this broke the legacy interrupts not getting routed to the cpu-7 on the AMD platform, resulting in a boot hang. For now, reintroduce the removed workaround, (essentially not allowing the vector to change for legacy irq's when io-apic starts to handle the irq. Which also addressed the uninteded sife effect of just specifying cpu-0 in the IO-APIC RTE for those irq's during boot). Reported-and-tested-by: Robert Richter <robert.richter@amd.com> Reported-and-tested-by: Borislav Petkov <bp@amd64.org> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Link: http://lkml.kernel.org/r/1344453412.29170.5.camel@sbsiddha-desk.sc.intel.com Signed-off-by: H. Peter Anvin <hpa@zytor.com>		2012-08-14 09:52:20 -07:00
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apic_flat_64.c	x86/apic: Eliminate cpu_mask_to_apicid() operation	2012-06-14 12:53:13 +02:00
apic_noop.c	x86/apic/x2apic: Limit the vector reservation to the user specified mask	2012-07-06 11:00:22 +02:00
apic_numachip.c	x86/apic: Eliminate cpu_mask_to_apicid() operation	2012-06-14 12:53:13 +02:00
apic.c	Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-07-26 13:17:17 -07:00
bigsmp_32.c	x86/apic: Eliminate cpu_mask_to_apicid() operation	2012-06-14 12:53:13 +02:00
es7000_32.c	x86/apic/es7000: Make apicid of a cluster (not CPU) from a cpumask	2012-06-14 12:53:16 +02:00
hw_nmi.c	x86, nmi: Wire up NMI handlers to new routines	2011-10-10 06:56:57 +02:00
io_apic.c	x86, apic: fix broken legacy interrupts in the logical apic mode	2012-08-14 09:52:20 -07:00
ipi.c	x86: Always use x86_cpu_to_logical_apicid for cpu -> logical apic id	2011-01-28 14:54:05 +01:00
Makefile	x86: Add NumaChip support	2011-12-05 17:17:24 +01:00
numaq_32.c	x86/apic: Eliminate cpu_mask_to_apicid() operation	2012-06-14 12:53:13 +02:00
probe_32.c	Merge branch 'x86/apic' into x86/platform	2012-06-18 11:09:49 +02:00
probe_64.c	x86/platform: Introduce APIC post-initialization callback	2012-06-06 09:06:19 +02:00
summit_32.c	Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-07-22 12:19:36 -07:00
x2apic_cluster.c	x86/apic/x2apic: Use multiple cluster members for the irq destination only with the explicit affinity	2012-07-06 11:00:23 +02:00
x2apic_phys.c	x86/apic: Eliminate cpu_mask_to_apicid() operation	2012-06-14 12:53:13 +02:00
x2apic_uv_x.c	x86/apic: Fix ugly casting and branching in cpu_mask_to_apicid_and()	2012-06-14 12:53:14 +02:00