linux_dsm_epyc7002/arch/x86
David Brownell 7e2a31da85 rtc-cmos: avoid spurious irqs
This fixes kernel http://bugzilla.kernel.org/show_bug.cgi?id=11112 (bogus
RTC update IRQs reported) for rtc-cmos, in two ways:

  - When HPET is stealing the IRQs, use the first IRQ to grab
    the seconds counter which will be monitored (instead of
    using whatever was previously in that memory);

  - In sane IRQ handling modes, scrub out old IRQ status before
    enabling IRQs.

That latter is done by tightening up IRQ handling for rtc-cmos everywhere,
also ensuring that when HPET is used it's the only thing triggering IRQ
reports to userspace; net object shrink.

Also fix a bogus HPET message related to its RTC emulation.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Report-by: W Unruh <unruh@physics.ubc.ca>
Cc: Andrew Victor <avictor.za@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:34 -07:00
..
boot x86: check function status in EDD boot code 2008-07-18 14:33:17 -07:00
configs Subject: devmem, x86: fix rename of CONFIG_NONPROMISC_DEVMEM 2008-07-20 08:35:55 +02:00
crypto [CRYPTO] aes-x86-32: Remove unused return code 2008-04-21 10:19:21 +08:00
ia32 flag parameters add-on: remove epoll_create size param 2008-07-24 10:47:29 -07:00
kernel rtc-cmos: avoid spurious irqs 2008-07-24 10:47:34 -07:00
kvm KVM: MMU: Fix potential race setting upper shadow ptes on nonpae hosts 2008-07-20 12:42:40 +03:00
lguest x86: APIC: remove apic_write_around(); use alternatives 2008-07-18 12:51:21 +02:00
lib Merge branch 'generic-ipi' into generic-ipi-for-linus 2008-07-15 21:55:59 +02:00
mach-default x86: add ->pre_time_init to x86_quirks 2008-07-20 09:25:52 +02:00
mach-es7000 x86: move the last Dprintk instance to pr_debug() 2008-07-21 21:58:34 +02:00
mach-generic x86: make generic arch support NUMAQ, fix 2008-07-08 10:35:45 +02:00
mach-rdc321x x86, rdc321x: remove watchdog file 2008-04-17 17:40:50 +02:00
mach-voyager Merge branch 'generic-ipi' into generic-ipi-for-linus 2008-07-15 21:55:59 +02:00
math-emu x86: coding style fixes to arch/x86/math-emu/reg_constant 2008-06-18 15:00:13 +02:00
mm x86: add hugepagesz option on 64-bit 2008-07-24 10:47:19 -07:00
oprofile Merge branch 'generic-ipi' into generic-ipi-for-linus 2008-07-15 21:55:59 +02:00
pci use generic_access_phys for /dev/mem mappings 2008-07-24 10:47:15 -07:00
power x86: remove end_pfn in 64bit 2008-07-08 13:10:38 +02:00
vdso Merge branches 'x86/urgent', 'x86/amd-iommu', 'x86/apic', 'x86/cleanups', 'x86/core', 'x86/cpu', 'x86/fixmap', 'x86/gart', 'x86/kprobes', 'x86/memtest', 'x86/modules', 'x86/nmi', 'x86/pat', 'x86/reboot', 'x86/setup', 'x86/step', 'x86/unify-pci', 'x86/uv', 'x86/xen' and 'xen-64bit' into x86/for-linus 2008-07-21 16:37:17 +02:00
video x86: video/fbdev.c: add MODULE_LICENSE 2008-05-04 20:04:46 +02:00
xen Merge branch 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-07-23 18:37:44 -07:00
Kconfig access_process_vm device memory infrastructure 2008-07-24 10:47:15 -07:00
Kconfig.cpu x86: fix crash due to missing debugctlmsr on AMD K6-3 2008-07-22 14:16:37 +02:00
Kconfig.debug x86: Fix help message for STRICT_DEVMEM config option 2008-07-21 13:04:08 -07:00
Makefile x86, VisWS: turn into generic arch, remove leftover files 2008-07-10 18:55:45 +02:00
Makefile_32.cpu x86: move i386 and x86_64 Makefiles to arch/x86 2007-10-25 22:27:34 +02:00