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irq_remapping: Clean up unsued code to support IOAPIC 

Now we have converted to hierarchical irqdomains, so clean up unused code.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Tested-by: Joerg Roedel <jroedel@suse.de>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Cohen <david.a.cohen@linux.intel.com>
Cc: Sander Eikelenboom <linux@eikelenboom.it>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dimitri Sivanich <sivanich@sgi.com>
Cc: Joerg Roedel <joro@8bytes.org>
Link: http://lkml.kernel.org/r/1428978610-28986-10-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
hifive-unleashed-5.1
Jiang Liu 2015-04-14 10:29:46 +08:00 committed by Thomas Gleixner
parent 3dd786ea3a
commit 9880534989
3 changed files with 0 additions and 57 deletions
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23
arch/x86/include/asm/irq_remapping.h
View File

@ -26,12 +26,7 @@
#include <asm/hw_irq.h>
#include <asm/io_apic.h>
struct IO_APIC_route_entry;
struct io_apic_irq_attr;
struct irq_chip;
struct msi_msg;
struct pci_dev;
struct irq_cfg;
struct irq_alloc_info;
#ifdef CONFIG_IRQ_REMAP
@ -42,13 +37,7 @@ extern int irq_remapping_enable(void);
extern void irq_remapping_disable(void);
extern int irq_remapping_reenable(int);
extern int irq_remap_enable_fault_handling(void);
extern void free_remapped_irq(int irq);
extern void panic_if_irq_remap(const char *msg);
extern bool setup_remapped_irq(int irq,
struct irq_cfg *cfg,
struct irq_chip *chip);
void irq_remap_modify_chip_defaults(struct irq_chip *chip);
extern struct irq_domain *
irq_remapping_get_ir_irq_domain(struct irq_alloc_info *info);
@ -72,23 +61,11 @@ static inline int irq_remapping_enable(void) { return -ENODEV; }
static inline void irq_remapping_disable(void) { }
static inline int irq_remapping_reenable(int eim) { return -ENODEV; }
static inline int irq_remap_enable_fault_handling(void) { return -ENODEV; }
static inline void free_remapped_irq(int irq) { }
static inline void panic_if_irq_remap(const char *msg)
{
}
static inline void irq_remap_modify_chip_defaults(struct irq_chip *chip)
{
}
static inline bool setup_remapped_irq(int irq,
struct irq_cfg *cfg,
struct irq_chip *chip)
{
return false;
}
static inline struct irq_domain *
irq_remapping_get_ir_irq_domain(struct irq_alloc_info *info)
{

1
arch/x86/kernel/apic/vector.c
View File

@ -283,7 +283,6 @@ static void x86_vector_free_irqs(struct irq_domain *domain,
for (i = 0; i < nr_irqs; i++) {
irq_data = irq_domain_get_irq_data(x86_vector_domain, virq + i);
if (irq_data && irq_data->chip_data) {
free_remapped_irq(virq);
clear_irq_vector(virq + i, irq_data->chip_data);
free_irq_cfg(irq_data->chip_data);
#ifdef CONFIG_X86_IO_APIC

33
drivers/iommu/irq_remapping.c
View File

@ -25,11 +25,6 @@ int no_x2apic_optout;
static int disable_irq_remap;
static struct irq_remap_ops *remap_ops;
static bool irq_remapped(struct irq_cfg *cfg)
{
return (cfg->remapped == 1);
}
static void irq_remapping_disable_io_apic(void)
{
/*
@ -140,14 +135,6 @@ int __init irq_remap_enable_fault_handling(void)
return remap_ops->enable_faulting();
}
void free_remapped_irq(int irq)
{
struct irq_cfg *cfg = irq_cfg(irq);
if (irq_remapped(cfg) && remap_ops->free_irq)
remap_ops->free_irq(irq);
}
void panic_if_irq_remap(const char *msg)
{
if (irq_remapping_enabled)
@ -159,26 +146,6 @@ void ir_ack_apic_edge(struct irq_data *data)
ack_APIC_irq();
}
static void ir_print_prefix(struct irq_data *data, struct seq_file *p)
{
seq_printf(p, " IR-%s", data->chip->name);
}
void irq_remap_modify_chip_defaults(struct irq_chip *chip)
{
chip->irq_print_chip = ir_print_prefix;
chip->irq_ack = ir_ack_apic_edge;
}
bool setup_remapped_irq(int irq, struct irq_cfg *cfg, struct irq_chip *chip)
{
if (!irq_remapped(cfg))
return false;
irq_set_status_flags(irq, IRQ_MOVE_PCNTXT);
irq_remap_modify_chip_defaults(chip);
return true;
}
/**
* irq_remapping_get_ir_irq_domain - Get the irqdomain associated with the IOMMU
* device serving request @info