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authorIngo Molnar <mingo@kernel.org>2021-06-18 11:31:25 +0200
committerIngo Molnar <mingo@kernel.org>2021-06-18 11:31:25 +0200
commitb2c0931a07b7376c6291e0cfb347ad27f7b66263 (patch)
tree58ee600a10ecc49f473429a73c6c079422dac97f /arch/x86/kernel/apic/vector.c
parent94aafc3ee31dc199d1078ffac9edd976b7f47b3d (diff)
parenta7b359fc6a37faaf472125867c8dc5a068c90982 (diff)
downloadlinux-b2c0931a07b7376c6291e0cfb347ad27f7b66263.tar.bz2
Merge branch 'sched/urgent' into sched/core, to resolve conflicts
This commit in sched/urgent moved the cfs_rq_is_decayed() function: a7b359fc6a37: ("sched/fair: Correctly insert cfs_rq's to list on unthrottle") and this fresh commit in sched/core modified it in the old location: 9e077b52d86a: ("sched/pelt: Check that *_avg are null when *_sum are") Merge the two variants. Conflicts: kernel/sched/fair.c Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/apic/vector.c')
-rw-r--r--arch/x86/kernel/apic/vector.c20
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;