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Differential D31673 Diff 94152 sys/compat/linuxkpi/common/include/linux/interrupt.h

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sys/compat/linuxkpi/common/include/linux/interrupt.h

  • This file was copied to sys/compat/linuxkpi/common/src/linux_interrupt.c.
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#include <linux/cpu.h> #include <linux/cpu.h>
#include <linux/device.h> #include <linux/device.h>
#include <linux/pci.h> #include <linux/pci.h>
#include <linux/irqreturn.h> #include <linux/irqreturn.h>
#include <linux/hardirq.h> #include <linux/hardirq.h>
#include <sys/param.h> #include <sys/param.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <sys/interrupt.h> #include <sys/interrupt.h>
typedef irqreturn_t (*irq_handler_t)(int, void *); typedef irqreturn_t (*irq_handler_t)(int, void *);
#define IRQF_SHARED RF_SHAREABLE #define IRQF_SHARED RF_SHAREABLE
struct irq_ent { struct irq_ent;
struct list_head links;
struct device *dev;
struct resource *res;
void *arg;
irqreturn_t (*handler)(int, void *);
irqreturn_t (*thread_handler)(int, void *);
void *tag;
unsigned int irq;
};
void linux_irq_handler(void *); void linux_irq_handler(void *);
void lkpi_devm_irq_release(struct device *, void *); void lkpi_devm_irq_release(struct device *, void *);
void lkpi_irq_release(struct device *, struct irq_ent *); void lkpi_irq_release(struct device *, struct irq_ent *);
int lkpi_request_irq(struct device *, unsigned int, irq_handler_t,
irq_handler_t, unsigned long, const char *, void *);
int lkpi_enable_irq(unsigned int);
void lkpi_disable_irq(unsigned int);
int lkpi_bind_irq_to_cpu(unsigned int, int);
void lkpi_free_irq(unsigned int, void *);
void lkpi_devm_free_irq(struct device *, unsigned int, void *);
static inline int static inline int
linux_irq_rid(struct device *dev, unsigned int irq)
{
/* check for MSI- or MSIX- interrupt */
if (irq >= dev->irq_start && irq < dev->irq_end)
return (irq - dev->irq_start + 1);
else
return (0);
}
static inline struct irq_ent *
linux_irq_ent(struct device *dev, unsigned int irq)
{
struct irq_ent *irqe;
list_for_each_entry(irqe, &dev->irqents, links)
if (irqe->irq == irq)
return (irqe);
return (NULL);
}
static inline int
_request_irq(struct device *xdev, unsigned int irq,
irq_handler_t handler, irq_handler_t thread_handler,
unsigned long flags, const char *name, void *arg)
{
struct resource *res;
struct irq_ent *irqe;
struct device *dev;
int error;
int rid;
dev = linux_pci_find_irq_dev(irq);
if (dev == NULL)
return -ENXIO;
if (xdev != NULL && xdev != dev)
return -ENXIO;
rid = linux_irq_rid(dev, irq);
res = bus_alloc_resource_any(dev->bsddev, SYS_RES_IRQ, &rid,
flags | RF_ACTIVE);
if (res == NULL)
return (-ENXIO);
if (xdev != NULL)
irqe = lkpi_devres_alloc(lkpi_devm_irq_release, sizeof(*irqe),
GFP_KERNEL | __GFP_ZERO);
else
irqe = kzalloc(sizeof(*irqe), GFP_KERNEL);
irqe->dev = dev;
irqe->res = res;
irqe->arg = arg;
irqe->handler = handler;
irqe->thread_handler = thread_handler;
irqe->irq = irq;
error = bus_setup_intr(dev->bsddev, res, INTR_TYPE_NET | INTR_MPSAFE,
NULL, linux_irq_handler, irqe, &irqe->tag);
if (error)
goto errout;
list_add(&irqe->links, &dev->irqents);
if (xdev != NULL)
devres_add(xdev, irqe);
return 0;
errout:
bus_release_resource(dev->bsddev, SYS_RES_IRQ, rid, irqe->res);
if (xdev != NULL)
devres_free(irqe);
else
kfree(irqe);
return (-error);
}
static inline int
request_irq(unsigned int irq, irq_handler_t handler, unsigned long flags, request_irq(unsigned int irq, irq_handler_t handler, unsigned long flags,
const char *name, void *arg) const char *name, void *arg)
{ {
return (_request_irq(NULL, irq, handler, NULL, flags, name, arg)); return (lkpi_request_irq(NULL, irq, handler, NULL, flags, name, arg));
} }
static inline int static inline int
request_threaded_irq(int irq, irq_handler_t handler, request_threaded_irq(int irq, irq_handler_t handler,
irq_handler_t thread_handler, unsigned long flags, irq_handler_t thread_handler, unsigned long flags,
const char *name, void *arg) const char *name, void *arg)
{ {
return (_request_irq(NULL, irq, handler, thread_handler, return (lkpi_request_irq(NULL, irq, handler, thread_handler,
flags, name, arg)); flags, name, arg));
} }
static inline int static inline int
devm_request_threaded_irq(struct device *dev, int irq, devm_request_threaded_irq(struct device *dev, int irq,
irq_handler_t handler, irq_handler_t thread_handler, irq_handler_t handler, irq_handler_t thread_handler,
unsigned long flags, const char *name, void *arg) unsigned long flags, const char *name, void *arg)
{ {
return (_request_irq(dev, irq, handler, thread_handler, return (lkpi_request_irq(dev, irq, handler, thread_handler,
flags, name, arg)); flags, name, arg));
} }
static inline int static inline int
enable_irq(unsigned int irq) enable_irq(unsigned int irq)
{ {
struct irq_ent *irqe; return (lkpi_enable_irq(irq));
struct device *dev;
dev = linux_pci_find_irq_dev(irq);
if (dev == NULL)
return -EINVAL;
irqe = linux_irq_ent(dev, irq);
if (irqe == NULL || irqe->tag != NULL)
return -EINVAL;
return -bus_setup_intr(dev->bsddev, irqe->res, INTR_TYPE_NET | INTR_MPSAFE,
NULL, linux_irq_handler, irqe, &irqe->tag);
} }
static inline void static inline void
disable_irq(unsigned int irq) disable_irq(unsigned int irq)
{ {
struct irq_ent *irqe; lkpi_disable_irq(irq);
struct device *dev;
dev = linux_pci_find_irq_dev(irq);
if (dev == NULL)
return;
irqe = linux_irq_ent(dev, irq);
if (irqe == NULL)
return;
if (irqe->tag != NULL)
bus_teardown_intr(dev->bsddev, irqe->res, irqe->tag);
irqe->tag = NULL;
} }
static inline int static inline int
bind_irq_to_cpu(unsigned int irq, int cpu_id) bind_irq_to_cpu(unsigned int irq, int cpu_id)
{ {
struct irq_ent *irqe; return (lkpi_bind_irq_to_cpu(irq, cpu_id));
struct device *dev;
dev = linux_pci_find_irq_dev(irq);
if (dev == NULL)
return (-ENOENT);
irqe = linux_irq_ent(dev, irq);
if (irqe == NULL)
return (-ENOENT);
return (-bus_bind_intr(dev->bsddev, irqe->res, cpu_id));
} }
static inline void static inline void
free_irq(unsigned int irq, void *device __unused) free_irq(unsigned int irq, void *device __unused)
hselaskyUnsubmitted
Not Done
Inline Actions

"device" is no longer __unused here.

hselasky: "device" is no longer __unused here.
{ {
struct irq_ent *irqe; lkpi_free_irq(irq, device);
struct device *dev;
dev = linux_pci_find_irq_dev(irq);
if (dev == NULL)
return;
irqe = linux_irq_ent(dev, irq);
if (irqe == NULL)
return;
lkpi_irq_release(dev, irqe);
kfree(irqe);
} }
static inline void static inline void
devm_free_irq(struct device *xdev, unsigned int irq, void *p) devm_free_irq(struct device *xdev, unsigned int irq, void *p)
{ {
struct device *dev; lkpi_devm_free_irq(xdev, irq, p);
struct irq_ent *irqe;
dev = linux_pci_find_irq_dev(irq);
if (dev == NULL)
return;
if (xdev != dev)
return;
irqe = linux_irq_ent(dev, irq);
if (irqe == NULL)
return;
lkpi_irq_release(dev, irqe);
lkpi_devres_unlink(dev, irqe);
lkpi_devres_free(irqe);
return;
} }
static inline int static inline int
irq_set_affinity_hint(int vector, cpumask_t *mask) irq_set_affinity_hint(int vector, cpumask_t *mask)
{ {
int error; int error;
if (mask != NULL) if (mask != NULL)
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