linux/drivers/bus
Mark Rutland 0811ef7e2f bus: arm-ccn: fix PMU interrupt flags
Currently the IRQ core is permitted to make the CCN PMU IRQ handler
threaded, and will allow userspace to change the CPU affinity of the
interrupt behind our back. Both of these could violate our
synchronisation requirements with the core perf code, which relies upon
strict CPU affinity and disabling of interrupts to guarantee mutual
exclusion in some cases.

As with the CPU PMU drivers, we should request the interrupt with
IRQF_NOBALANCING and IRQF_NO_THREAD, to avoid these issues.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2016-08-26 09:16:07 +01:00
..
arm-cci.c bus/arm-cci: Convert to hotplug statemachine 2016-07-14 09:34:39 +02:00
arm-ccn.c bus: arm-ccn: fix PMU interrupt flags 2016-08-26 09:16:07 +01:00
brcmstb_gisb.c BUS: brcmstb_gisb: Hook to MIPS board_be_handler 2016-05-13 14:01:55 +02:00
imx-weim.c bus: imx-weim: use of_platform_default_populate() to populate default bus 2016-06-23 15:00:45 -05:00
Kconfig bus: Add support for Tegra ACONNECT 2016-07-01 16:35:43 +02:00
Makefile bus: Add support for Tegra ACONNECT 2016-07-01 16:35:43 +02:00
mips_cdmm.c MIPS: Remove no longer needed work_on_cpu() call 2016-05-13 14:02:17 +02:00
mvebu-mbus.c bus: mvebu-mbus: make mvebu_mbus_syscore_ops static 2016-07-11 17:59:24 +02:00
omap_l3_noc.c Merge branches 'pm-sleep' and 'pm-runtime' 2015-06-19 01:18:02 +02:00
omap_l3_noc.h bus: omap_l3_noc: Fix master id address decoding for OMAP5 2015-05-04 10:21:01 -07:00
omap_l3_smx.c genirq: Remove the deprecated 'IRQF_DISABLED' request_irq() flag entirely 2015-03-05 20:53:06 +01:00
omap_l3_smx.h
omap-ocp2scp.c bus: omap-ocp2scp: Fix module alias 2015-10-12 16:10:04 -07:00
simple-pm-bus.c drivers: bus: Add Simple Power-Managed Bus Driver 2015-02-24 06:36:18 +09:00
sunxi-rsb.c drivers: sunxi-rsb: fix error output type 2016-01-25 00:00:49 +01:00
tegra-aconnect.c bus: Add support for Tegra ACONNECT 2016-07-01 16:35:43 +02:00
uniphier-system-bus.c bus: uniphier-system-bus: use of_platform_default_populate() to populate default bus 2016-06-23 15:00:48 -05:00
vexpress-config.c bus: vexpress-config: Add missing of_node_put 2016-02-01 09:59:58 +00:00