[Patch Part2 v5 31/33] x86: Cleanup irq_domain ops

From: Jiang Liu
Date: Mon Apr 13 2015 - 22:34:58 EST

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From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

We have 3 identical copies of the ioapic domain ops for acpi, mpparse,
and sfi. Have a global one in the io_apic code and be done with it.

To avoid include hell in io_apic.h, create a private irqdomain header
and include the generic irqdomain header from there.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
Cc: x86@xxxxxxxxxx
Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
---
arch/x86/include/asm/io_apic.h | 29 ++---------------------------
arch/x86/include/asm/irqdomain.h | 34 ++++++++++++++++++++++++++++++++++
arch/x86/kernel/acpi/boot.c | 13 +++----------
arch/x86/kernel/apic/io_apic.c | 9 ++++++++-
arch/x86/kernel/devicetree.c | 12 ++++++------
arch/x86/kernel/mpparse.c | 9 +--------
arch/x86/platform/sfi/sfi.c | 10 ++--------
7 files changed, 56 insertions(+), 60 deletions(-)
create mode 100644 arch/x86/include/asm/irqdomain.h

diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index 53a70a30b674..144c4d37ae86 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -96,7 +96,7 @@ struct IR_IO_APIC_route_entry {
} __attribute__ ((packed));

struct irq_alloc_info;
-struct irq_data;
+struct ioapic_domain_cfg;

#define IOAPIC_AUTO -1
#define IOAPIC_EDGE 0
@@ -163,23 +163,6 @@ extern int restore_ioapic_entries(void);
extern void setup_ioapic_ids_from_mpc(void);
extern void setup_ioapic_ids_from_mpc_nocheck(void);

-enum ioapic_domain_type {
- IOAPIC_DOMAIN_INVALID,
- IOAPIC_DOMAIN_LEGACY,
- IOAPIC_DOMAIN_STRICT,
- IOAPIC_DOMAIN_DYNAMIC,
-};
-
-struct device_node;
-struct irq_domain;
-struct irq_domain_ops;
-
-struct ioapic_domain_cfg {
- enum ioapic_domain_type type;
- const struct irq_domain_ops *ops;
- struct device_node *dev;
-};
-
extern int mp_find_ioapic(u32 gsi);
extern int mp_find_ioapic_pin(int ioapic, u32 gsi);
extern int mp_map_gsi_to_irq(u32 gsi, unsigned int flags,
@@ -189,15 +172,7 @@ extern int mp_register_ioapic(int id, u32 address, u32 gsi_base,
struct ioapic_domain_cfg *cfg);
extern int mp_unregister_ioapic(u32 gsi_base);
extern int mp_ioapic_registered(u32 gsi_base);
-extern int mp_irqdomain_alloc(struct irq_domain *domain, unsigned int virq,
- unsigned int nr_irqs, void *arg);
-extern void mp_irqdomain_free(struct irq_domain *domain, unsigned int virq,
- unsigned int nr_irqs);
-extern void mp_irqdomain_activate(struct irq_domain *domain,
- struct irq_data *irq_data);
-extern void mp_irqdomain_deactivate(struct irq_domain *domain,
- struct irq_data *irq_data);
-extern int mp_irqdomain_ioapic_idx(struct irq_domain *domain);
+
extern void ioapic_set_alloc_attr(struct irq_alloc_info *info,
int node, int trigger, int polarity);

diff --git a/arch/x86/include/asm/irqdomain.h b/arch/x86/include/asm/irqdomain.h
new file mode 100644
index 000000000000..fe0d4c6636ec
--- /dev/null
+++ b/arch/x86/include/asm/irqdomain.h
@@ -0,0 +1,34 @@
+#ifndef _ASM_IRQDOMAIN_H
+#define _ASM_IRQDOMAIN_H
+
+#include <linux/irqdomain.h>
+
+enum ioapic_domain_type {
+ IOAPIC_DOMAIN_INVALID,
+ IOAPIC_DOMAIN_LEGACY,
+ IOAPIC_DOMAIN_STRICT,
+ IOAPIC_DOMAIN_DYNAMIC,
+};
+
+struct device_node;
+struct irq_data;
+
+struct ioapic_domain_cfg {
+ enum ioapic_domain_type type;
+ const struct irq_domain_ops *ops;
+ struct device_node *dev;
+};
+
+extern const struct irq_domain_ops mp_ioapic_irqdomain_ops;
+
+extern int mp_irqdomain_alloc(struct irq_domain *domain, unsigned int virq,
+ unsigned int nr_irqs, void *arg);
+extern void mp_irqdomain_free(struct irq_domain *domain, unsigned int virq,
+ unsigned int nr_irqs);
+extern void mp_irqdomain_activate(struct irq_domain *domain,
+ struct irq_data *irq_data);
+extern void mp_irqdomain_deactivate(struct irq_domain *domain,
+ struct irq_data *irq_data);
+extern int mp_irqdomain_ioapic_idx(struct irq_domain *domain);
+
+#endif
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 91a10120ed10..cb9f6f12246b 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -31,12 +31,12 @@
#include <linux/module.h>
#include <linux/dmi.h>
#include <linux/irq.h>
-#include <linux/irqdomain.h>
#include <linux/slab.h>
#include <linux/bootmem.h>
#include <linux/ioport.h>
#include <linux/pci.h>

+#include <asm/irqdomain.h>
#include <asm/pci_x86.h>
#include <asm/pgtable.h>
#include <asm/io_apic.h>
@@ -400,20 +400,13 @@ static int mp_config_acpi_gsi(struct device *dev, u32 gsi, int trigger,
return 0;
}

-static struct irq_domain_ops acpi_irqdomain_ops = {
- .alloc = mp_irqdomain_alloc,
- .free = mp_irqdomain_free,
- .activate = mp_irqdomain_activate,
- .deactivate = mp_irqdomain_deactivate,
-};
-
static int __init
acpi_parse_ioapic(struct acpi_subtable_header * header, const unsigned long end)
{
struct acpi_madt_io_apic *ioapic = NULL;
struct ioapic_domain_cfg cfg = {
.type = IOAPIC_DOMAIN_DYNAMIC,
- .ops = &acpi_irqdomain_ops,
+ .ops = &mp_ioapic_irqdomain_ops,
};

ioapic = (struct acpi_madt_io_apic *)header;
@@ -764,7 +757,7 @@ int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
u64 addr;
struct ioapic_domain_cfg cfg = {
.type = IOAPIC_DOMAIN_DYNAMIC,
- .ops = &acpi_irqdomain_ops,
+ .ops = &mp_ioapic_irqdomain_ops,
};

ioapic_id = acpi_get_ioapic_id(handle, gsi_base, &addr);
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index ce7063087f74..1eea1682b01b 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -41,13 +41,13 @@
#include <linux/acpi.h>
#include <linux/module.h>
#include <linux/syscore_ops.h>
-#include <linux/irqdomain.h>
#include <linux/freezer.h>
#include <linux/kthread.h>
#include <linux/jiffies.h> /* time_after() */
#include <linux/slab.h>
#include <linux/bootmem.h>

+#include <asm/irqdomain.h>
#include <asm/idle.h>
#include <asm/io.h>
#include <asm/smp.h>
@@ -2995,3 +2995,10 @@ int mp_irqdomain_ioapic_idx(struct irq_domain *domain)
{
return (int)(long)domain->host_data;
}
+
+const struct irq_domain_ops mp_ioapic_irqdomain_ops = {
+ .alloc = mp_irqdomain_alloc,
+ .free = mp_irqdomain_free,
+ .activate = mp_irqdomain_activate,
+ .deactivate = mp_irqdomain_deactivate,
+};
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 9ca73a700912..421375b1efd5 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -4,7 +4,6 @@
#include <linux/bootmem.h>
#include <linux/export.h>
#include <linux/io.h>
-#include <linux/irqdomain.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/of.h>
@@ -17,6 +16,7 @@
#include <linux/of_pci.h>
#include <linux/initrd.h>

+#include <asm/irqdomain.h>
#include <asm/hpet.h>
#include <asm/apic.h>
#include <asm/pci_x86.h>
@@ -216,11 +216,11 @@ static int dt_irqdomain_alloc(struct irq_domain *domain, unsigned int virq,
return mp_irqdomain_alloc(domain, virq, nr_irqs, &tmp);
}

-const struct irq_domain_ops ioapic_irq_domain_ops = {
- .alloc = dt_irqdomain_alloc,
- .free = mp_irqdomain_free,
- .activate = mp_irqdomain_activate,
- .deactivate = mp_irqdomain_deactivate,
+static const struct irq_domain_ops ioapic_irq_domain_ops = {
+ .alloc = dt_irqdomain_alloc,
+ .free = mp_irqdomain_free,
+ .activate = mp_irqdomain_activate,
+ .deactivate = mp_irqdomain_deactivate,
};

static void __init dtb_add_ioapic(struct device_node *dn)
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index aa4feee74dbe..30ca7607cbbb 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -19,8 +19,8 @@
#include <linux/module.h>
#include <linux/smp.h>
#include <linux/pci.h>
-#include <linux/irqdomain.h>

+#include <asm/irqdomain.h>
#include <asm/mtrr.h>
#include <asm/mpspec.h>
#include <asm/pgalloc.h>
@@ -113,13 +113,6 @@ static void __init MP_bus_info(struct mpc_bus *m)
pr_warn("Unknown bustype %s - ignoring\n", str);
}

-static struct irq_domain_ops mp_ioapic_irqdomain_ops = {
- .alloc = mp_irqdomain_alloc,
- .free = mp_irqdomain_free,
- .activate = mp_irqdomain_activate,
- .deactivate = mp_irqdomain_deactivate,
-};
-
static void __init MP_ioapic_info(struct mpc_ioapic *m)
{
struct ioapic_domain_cfg cfg = {
diff --git a/arch/x86/platform/sfi/sfi.c b/arch/x86/platform/sfi/sfi.c
index b66b194f9900..6c7111bbd1e9 100644
--- a/arch/x86/platform/sfi/sfi.c
+++ b/arch/x86/platform/sfi/sfi.c
@@ -25,8 +25,8 @@
#include <linux/init.h>
#include <linux/sfi.h>
#include <linux/io.h>
-#include <linux/irqdomain.h>

+#include <asm/irqdomain.h>
#include <asm/io_apic.h>
#include <asm/mpspec.h>
#include <asm/setup.h>
@@ -71,12 +71,6 @@ static int __init sfi_parse_cpus(struct sfi_table_header *table)
#endif /* CONFIG_X86_LOCAL_APIC */

#ifdef CONFIG_X86_IO_APIC
-static struct irq_domain_ops sfi_ioapic_irqdomain_ops = {
- .alloc = mp_irqdomain_alloc,
- .free = mp_irqdomain_free,
- .activate = mp_irqdomain_activate,
- .deactivate = mp_irqdomain_deactivate,
-};

static int __init sfi_parse_ioapic(struct sfi_table_header *table)
{
@@ -85,7 +79,7 @@ static int __init sfi_parse_ioapic(struct sfi_table_header *table)
int i, num;
struct ioapic_domain_cfg cfg = {
.type = IOAPIC_DOMAIN_STRICT,
- .ops = &sfi_ioapic_irqdomain_ops,
+ .ops = &mp_ioapic_irqdomain_ops,
};

sb = (struct sfi_table_simple *)table;
--
1.7.10.4

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Next message: Jiang Liu: "[Patch Part2 v5 26/33] x86/irq: Move private data in struct irq_cfg into dedicated data structure"
Previous message: Jiang Liu: "[Patch Part2 v5 30/33] x86,ioapic: Cleanup irq_trigger/polarity()"
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Next in thread: Jiang Liu: "[Patch Part2 v5 26/33] x86/irq: Move private data in struct irq_cfg into dedicated data structure"
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