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genirq: GENERIC_IRQ_EFFECTIVE_AFF_MASK depends on SMP

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An IRQ's effective affinity can only be different from its configured
affinity if there are multiple CPUs. Make it clear that this option is
only meaningful when SMP is enabled. Most of the relevant code in
irqdesc.c is already hidden behind CONFIG_SMP anyway.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220701200056.46555-4-samuel@sholland.org
This commit is contained in:
Samuel Holland 2022-07-01 15:00:51 -05:00 committed by Marc Zyngier
parent 0f5209fee9
commit 0e6c027c03
3 changed files with 9 additions and 8 deletions
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2
arch/arm/mach-hisi/Kconfig
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@ -40,7 +40,7 @@ config ARCH_HIP04
select HAVE_ARM_ARCH_TIMER
select MCPM if SMP
select MCPM_QUAD_CLUSTER if SMP
select GENERIC_IRQ_EFFECTIVE_AFF_MASK
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
help
Support for Hisilicon HiP04 SoC family

14
drivers/irqchip/Kconfig
View File

@ -8,7 +8,7 @@ config IRQCHIP
config ARM_GIC
bool
select IRQ_DOMAIN_HIERARCHY
select GENERIC_IRQ_EFFECTIVE_AFF_MASK
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
config ARM_GIC_PM
bool
@ -34,7 +34,7 @@ config ARM_GIC_V3
bool
select IRQ_DOMAIN_HIERARCHY
select PARTITION_PERCPU
select GENERIC_IRQ_EFFECTIVE_AFF_MASK
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
config ARM_GIC_V3_ITS
bool
@ -76,7 +76,7 @@ config ARMADA_370_XP_IRQ
bool
select GENERIC_IRQ_CHIP
select PCI_MSI if PCI
select GENERIC_IRQ_EFFECTIVE_AFF_MASK
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
config ALPINE_MSI
bool
@ -112,7 +112,7 @@ config BCM6345_L1_IRQ
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
select GENERIC_IRQ_EFFECTIVE_AFF_MASK
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
config BCM7038_L1_IRQ
tristate "Broadcom STB 7038-style L1/L2 interrupt controller driver"
@ -120,7 +120,7 @@ config BCM7038_L1_IRQ
default ARCH_BRCMSTB || BMIPS_GENERIC
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
select GENERIC_IRQ_EFFECTIVE_AFF_MASK
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
config BCM7120_L2_IRQ
tristate "Broadcom STB 7120-style L2 interrupt controller driver"
@ -179,7 +179,7 @@ config IRQ_MIPS_CPU
select GENERIC_IRQ_CHIP
select GENERIC_IRQ_IPI if SMP && SYS_SUPPORTS_MULTITHREADING
select IRQ_DOMAIN
select GENERIC_IRQ_EFFECTIVE_AFF_MASK
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
config CLPS711X_IRQCHIP
bool
@ -294,7 +294,7 @@ config VERSATILE_FPGA_IRQ_NR
config XTENSA_MX
bool
select IRQ_DOMAIN
select GENERIC_IRQ_EFFECTIVE_AFF_MASK
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
config XILINX_INTC
bool "Xilinx Interrupt Controller IP"

1
kernel/irq/Kconfig
View File

@ -24,6 +24,7 @@ config GENERIC_IRQ_SHOW_LEVEL
# Supports effective affinity mask
config GENERIC_IRQ_EFFECTIVE_AFF_MASK
depends on SMP
bool
# Support for delayed migration from interrupt context