x86/irq: Clean up io_apic.h

[firefly-linux-kernel-4.4.55.git] / arch / x86 / kernel / apic / io_apic.c

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 3029502b0a50fdf2fdebfed3e9c3e445bea6e658..4c7da8483398de8f761e5a3433ed9d9a39439373 100644 (file)
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -63,7 +63,6 @@
 #define        for_each_ioapic_pin(idx, pin)   \
        for_each_ioapic((idx))          \
                for_each_pin((idx), (pin))
-
 #define for_each_irq_pin(entry, head) \
        list_for_each_entry(entry, &head, list)
 
@@ -92,6 +91,11 @@ struct mp_chip_data {
        bool isa_irq;
 };
 
+struct mp_ioapic_gsi {
+       u32 gsi_base;
+       u32 gsi_end;
+};
+
 static struct ioapic {
        /*
         * # of IRQ routing registers
@@ -122,7 +126,7 @@ unsigned int mpc_ioapic_addr(int ioapic_idx)
        return ioapics[ioapic_idx].mp_config.apicaddr;
 }
 
-struct mp_ioapic_gsi *mp_ioapic_gsi_routing(int ioapic_idx)
+static inline struct mp_ioapic_gsi *mp_ioapic_gsi_routing(int ioapic_idx)
 {
        return &ioapics[ioapic_idx].gsi_config;
 }
@@ -134,7 +138,7 @@ static inline int mp_ioapic_pin_count(int ioapic)
        return gsi_cfg->gsi_end - gsi_cfg->gsi_base + 1;
 }
 
-u32 mp_pin_to_gsi(int ioapic, int pin)
+static inline u32 mp_pin_to_gsi(int ioapic, int pin)
 {
        return mp_ioapic_gsi_routing(ioapic)->gsi_base + pin;
 }
@@ -1153,8 +1157,7 @@ static int pin_2_irq(int idx, int ioapic, int pin, unsigned int flags)
        return  mp_map_pin_to_irq(gsi, idx, ioapic, pin, flags, NULL);
 }
 
-int mp_map_gsi_to_irq(u32 gsi, unsigned int flags,
-                     struct irq_alloc_info *info)
+int mp_map_gsi_to_irq(u32 gsi, unsigned int flags, struct irq_alloc_info *info)
 {
        int ioapic, pin, idx;
 
@@ -1719,7 +1722,6 @@ static int __init timer_irq_works(void)
  * This is not complete - we should be able to fake
  * an edge even if it isn't on the 8259A...
  */
-
 static unsigned int startup_ioapic_irq(struct irq_data *data)
 {
        int was_pending = 0, irq = data->irq;
@@ -1737,15 +1739,6 @@ static unsigned int startup_ioapic_irq(struct irq_data *data)
        return was_pending;
 }
 
-/*
- * Level and edge triggered IO-APIC interrupts need different handling,
- * so we use two separate IRQ descriptors. Edge triggered IRQs can be
- * handled with the level-triggered descriptor, but that one has slightly
- * more overhead. Level-triggered interrupts cannot be handled with the
- * edge-triggered handler, without risking IRQ storms and other ugly
- * races.
- */
-
 static void __target_IO_APIC_irq(unsigned int irq, struct irq_cfg *cfg,
                                 struct mp_chip_data *data)
 {