diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-14 09:18:07 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-14 09:18:07 +0200 |
| commit | 37fdb7c90f8cc2f41bdf2190ccc44a37bbf1a295 (patch) | |
| tree | 2f0c6fdba85b29cf3981053f87e504163aabb270 /arch/x86/kernel/apic/vector.c | |
| parent | 12f739798470288c8c1053484fe0281fe4cc5ea4 (diff) | |
| parent | 009c9aa5be652675a06d5211e1640e02bbb1c33d (diff) | |
Merge tag 'v5.13-rc6' into usb-next
We want the usb fixes in here as well, and this resolves some merge
issues with:
drivers/usb/dwc3/debugfs.c
drivers/usb/dwc3/gadget.c
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/kernel/apic/vector.c')
| -rw-r--r-- | arch/x86/kernel/apic/vector.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index 6dbdc7c22bb7..fb67ed5e7e6a 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -738,6 +738,26 @@ void lapic_assign_legacy_vector(unsigned int irq, bool replace) irq_matrix_assign_system(vector_matrix, ISA_IRQ_VECTOR(irq), replace); } +void __init lapic_update_legacy_vectors(void) +{ + unsigned int i; + + if (IS_ENABLED(CONFIG_X86_IO_APIC) && nr_ioapics > 0) + return; + + /* + * If the IO/APIC is disabled via config, kernel command line or + * lack of enumeration then all legacy interrupts are routed + * through the PIC. Make sure that they are marked as legacy + * vectors. PIC_CASCADE_IRQ has already been marked in + * lapic_assign_system_vectors(). + */ + for (i = 0; i < nr_legacy_irqs(); i++) { + if (i != PIC_CASCADE_IR) + lapic_assign_legacy_vector(i, true); + } +} + void __init lapic_assign_system_vectors(void) { unsigned int i, vector = 0; |