[Patch v2 12/18] x86, irq: Move IOAPIC related declarations from hw_irq.h into io_apic.h

From: Jiang Liu
Date: Fri Sep 26 2014 - 09:28:46 EST

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Clean up code by moving IOAPIC related declarations from hw_irq.h into
io_apic.h.

Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
---
arch/x86/include/asm/hw_irq.h | 33 ---------------------------------
arch/x86/include/asm/io_apic.h | 23 ++++++++++++++++++++---
arch/x86/kernel/apic/io_apic.c | 10 ++++++++++
arch/x86/kernel/crash.c | 1 +
arch/x86/kernel/machine_kexec_32.c | 1 +
arch/x86/kernel/machine_kexec_64.c | 1 +
arch/x86/kernel/reboot.c | 1 +
7 files changed, 34 insertions(+), 36 deletions(-)

diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index dca760e9cd12..7624fffc2822 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -154,39 +154,6 @@ static inline void lock_vector_lock(void) {}
static inline void unlock_vector_lock(void) {}
#endif /* CONFIG_X86_LOCAL_APIC */

-/* IOAPIC */
-#ifdef CONFIG_X86_IO_APIC
-struct io_apic_irq_attr {
- int ioapic;
- int ioapic_pin;
- int trigger;
- int polarity;
-};
-
-static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr,
- int ioapic, int ioapic_pin,
- int trigger, int polarity)
-{
- irq_attr->ioapic = ioapic;
- irq_attr->ioapic_pin = ioapic_pin;
- irq_attr->trigger = trigger;
- irq_attr->polarity = polarity;
-}
-
-extern void setup_IO_APIC(void);
-extern void enable_IO_APIC(void);
-extern void disable_IO_APIC(void);
-extern void setup_ioapic_dest(void);
-extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin);
-extern void print_IO_APICs(void);
-
-extern unsigned long io_apic_irqs;
-#define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1 << (x)) & io_apic_irqs))
-#else /* CONFIG_X86_IO_APIC */
-#define IO_APIC_IRQ(x) 0
-static inline void print_IO_APICs(void) {}
-#endif /* CONFIG_X86_IO_APIC */
-
/* Statistics */
extern atomic_t irq_err_count;
extern atomic_t irq_mis_count;
diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index a2245cb5ca3f..533803dc3733 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -132,6 +132,10 @@ extern int noioapicquirk;
/* -1 if "noapic" boot option passed */
extern int noioapicreroute;

+extern unsigned long io_apic_irqs;
+
+#define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1 << (x)) & io_apic_irqs))
+
/*
* If we use the IO-APIC for IRQ routing, disable automatic
* assignment of PCI IRQ's.
@@ -139,7 +143,6 @@ extern int noioapicreroute;
#define io_apic_assign_pci_irqs \
(mp_irq_entries && !skip_ioapic_setup && io_apic_irqs)

-struct io_apic_irq_attr;
struct irq_cfg;
extern void ioapic_insert_resources(void);

@@ -157,6 +160,13 @@ extern int restore_ioapic_entries(void);
extern void setup_ioapic_ids_from_mpc(void);
extern void setup_ioapic_ids_from_mpc_nocheck(void);

+struct io_apic_irq_attr {
+ int ioapic;
+ int ioapic_pin;
+ int trigger;
+ int polarity;
+};
+
enum ioapic_domain_type {
IOAPIC_DOMAIN_INVALID,
IOAPIC_DOMAIN_LEGACY,
@@ -196,6 +206,7 @@ extern int mp_set_gsi_attr(u32 gsi, int trigger, int polarity, int node);
extern void __init pre_init_apic_IRQ0(void);

extern void mp_save_irq(struct mpc_intsrc *m);
+extern bool mp_should_keep_irq(struct device *dev);

extern void disable_ioapic_support(void);

@@ -226,13 +237,19 @@ static inline void io_apic_modify(unsigned int apic, unsigned int reg, unsigned

extern void io_apic_eoi(unsigned int apic, unsigned int vector);

-extern bool mp_should_keep_irq(struct device *dev);
-
+extern void setup_IO_APIC(void);
+extern void enable_IO_APIC(void);
+extern void disable_IO_APIC(void);
+extern void setup_ioapic_dest(void);
+extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin);
+extern void print_IO_APICs(void);
#else /* !CONFIG_X86_IO_APIC */

+#define IO_APIC_IRQ(x) 0
#define io_apic_assign_pci_irqs 0
#define setup_ioapic_ids_from_mpc x86_init_noop
static inline void ioapic_insert_resources(void) { }
+static inline void print_IO_APICs(void) {}
#define gsi_top (NR_IRQS_LEGACY)
static inline int mp_find_ioapic(u32 gsi) { return 0; }
static inline u32 mp_pin_to_gsi(int ioapic, int pin) { return UINT_MAX; }
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 0741d864612a..3fc4f540ef0f 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -3014,6 +3014,16 @@ int mp_ioapic_registered(u32 gsi_base)
return 0;
}

+static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr,
+ int ioapic, int ioapic_pin,
+ int trigger, int polarity)
+{
+ irq_attr->ioapic = ioapic;
+ irq_attr->ioapic_pin = ioapic_pin;
+ irq_attr->trigger = trigger;
+ irq_attr->polarity = polarity;
+}
+
int mp_irqdomain_map(struct irq_domain *domain, unsigned int virq,
irq_hw_number_t hwirq)
{
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index a618fcd2c07d..71bdb8cf8ba1 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -28,6 +28,7 @@
#include <asm/nmi.h>
#include <asm/hw_irq.h>
#include <asm/apic.h>
+#include <asm/io_apic.h>
#include <asm/hpet.h>
#include <linux/kdebug.h>
#include <asm/cpu.h>
diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c
index 1667b1de8d5d..aad1a49e69c3 100644
--- a/arch/x86/kernel/machine_kexec_32.c
+++ b/arch/x86/kernel/machine_kexec_32.c
@@ -20,6 +20,7 @@
#include <asm/tlbflush.h>
#include <asm/mmu_context.h>
#include <asm/apic.h>
+#include <asm/io_apic.h>
#include <asm/cpufeature.h>
#include <asm/desc.h>
#include <asm/cacheflush.h>
diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
index 485981059a40..415480d3ea84 100644
--- a/arch/x86/kernel/machine_kexec_64.c
+++ b/arch/x86/kernel/machine_kexec_64.c
@@ -22,6 +22,7 @@
#include <asm/pgtable.h>
#include <asm/tlbflush.h>
#include <asm/mmu_context.h>
+#include <asm/io_apic.h>
#include <asm/debugreg.h>
#include <asm/kexec-bzimage64.h>

diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 17962e667a91..bae6c609888e 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -12,6 +12,7 @@
#include <acpi/reboot.h>
#include <asm/io.h>
#include <asm/apic.h>
+#include <asm/io_apic.h>
#include <asm/desc.h>
#include <asm/hpet.h>
#include <asm/pgtable.h>
--
1.7.10.4

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Next message: Jiang Liu: "[Patch v2 18/18] iommu/amd: Use helpers to access irq_cfg data structure associated with IRQ"
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