public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-08-05 16:54:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions
linux/arch/x86
History
Jiang Liu 527f0a91e9 x86/irq: Build correct vector mapping for multiple MSI interrupts 
Alex Deucher, Mark Rustad and Alexander Holler reported a regression
with the latest v4.2-rc4 kernel, which breaks some SATA controllers.
With multi-MSI capable SATA controllers, only the first port works,
all other ports time out when executing SATA commands.

This happens because the first argument to assign_irq_vector_policy()
is always the base linux irq number of the multi MSI interrupt block,
so all subsequent vector assignments operate on the base linux irq
number, so all MSI irqs are handled as the first irq number. Therefor
the other MSI irqs of a device are never set up correctly and never
fire.

Add the loop iterator to the base irq number so all vectors are
assigned correctly.

Fixes: b5dc8e6c21 "x86/irq: Use hierarchical irqdomain to manage CPU interrupt vectors"
Reported-and-tested-by: Alex Deucher <alexdeucher@gmail.com>
Reported-and-tested-by: Mark Rustad <mrustad@gmail.com>
Reported-and-tested-by: Alexander Holler <holler@ahsoftware.de>
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Link: http://lkml.kernel.org/r/1439911228-9880-1-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-08-18 18:18:55 +02:00
..
boot x86/efi: Use all 64 bit of efi_memmap in setup_e820() 2015-07-30 18:07:10 +01:00
configs kconfig: add xenconfig defconfig helper 2015-06-16 11:04:29 +01:00
crypto crypto: aesni - fix failing setkey for rfc4106-gcm-aesni 2015-06-29 16:06:30 +08:00
entry x86: fix error handling for 32-bit compat out-of-range system call numbers 2015-08-13 16:19:44 -07:00
ia32 Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-06-22 17:59:09 -07:00
include Revert x86 sigcontext cleanups 2015-08-13 12:42:22 -07:00
kernel x86/irq: Build correct vector mapping for multiple MSI interrupts 2015-08-18 18:18:55 +02:00
kvm KVM: x86: Use adjustment in guest cycles when handling MSR_IA32_TSC_ADJUST 2015-08-07 13:28:03 +02:00
lguest Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-06-22 17:59:09 -07:00
lib perf/x86: Fix copy_from_user_nmi() return if range is not ok 2015-07-06 14:09:27 +02:00
math-emu x86/ldt: Further fix FPU emulation 2015-08-16 15:11:05 -07:00
mm x86/mm/pat: Revert 'Adjust default caching mode translation tables' 2015-07-26 10:27:37 +02:00
net ebpf, x86: fix general protection fault when tail call is invoked 2015-07-29 17:02:19 -07:00
oprofile
pci PCI changes for the v4.2 merge window: 2015-06-23 13:41:24 -07:00
platform efi: Check for NULL efi kernel parameters 2015-07-30 18:07:11 +01:00
power x86/ldt: Make modify_ldt synchronous 2015-07-31 10:23:23 +02:00
purgatory
realmode
tools
um Merge branch 'for-linus-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml 2015-06-28 13:55:08 -07:00
video
xen xen: bug fixes for 4.2-rc6 2015-08-13 13:36:22 -07:00
.gitignore
Kbuild
Kconfig x86/fpu, sched: Introduce CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT and use it on x86 2015-07-18 03:42:51 +02:00
Kconfig.cpu
Kconfig.debug x86/entry/64, x86/nmi/64: Add CONFIG_DEBUG_ENTRY NMI testing code 2015-07-17 12:50:14 +02:00
Makefile x86/asm/entry: Move the arch/x86/syscalls/ definitions to arch/x86/entry/syscalls/ 2015-06-04 07:37:37 +02:00
Makefile.um
Makefile_32.cpu