msi-octeon.c File Reference

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/msi.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <asm/octeon/octeon.h>
#include <asm/octeon/cvmx-npi-defs.h>
#include <asm/octeon/cvmx-pci-defs.h>
#include <asm/octeon/cvmx-npei-defs.h>
#include <asm/octeon/cvmx-pexp-defs.h>
#include <asm/octeon/pci-octeon.h>

Go to the source code of this file.

Macros
#define	OCTEON_MSI_INT_HANDLER_X(x)
#define	INVALID_GENERATE_ADE   0x8700000000000000ULL;

Functions
int	arch_setup_msi_irq (struct pci_dev *dev, struct msi_desc *desc)
int	arch_setup_msi_irqs (struct pci_dev *dev, int nvec, int type)
void	arch_teardown_msi_irq (unsigned int irq)
	OCTEON_MSI_INT_HANDLER_X (0)
	OCTEON_MSI_INT_HANDLER_X (1)
	OCTEON_MSI_INT_HANDLER_X (2)
	OCTEON_MSI_INT_HANDLER_X (3)
int __init	octeon_msi_initialize (void)
	subsys_initcall (octeon_msi_initialize)

Macro Definition Documentation

#define INVALID_GENERATE_ADE   0x8700000000000000ULL;

#define OCTEON_MSI_INT_HANDLER_X

(

x

)

Value:

static irqreturn_t octeon_msi_interrupt##x(int cpl, void *dev_id)   \
{                                   \
	u64 msi_bits = cvmx_read_csr(msi_rcv_reg[(x)]);            \
    return __octeon_msi_do_interrupt((x), msi_bits);        \
}

Definition at line 344 of file msi-octeon.c.

Function Documentation

int arch_setup_msi_irq	(	struct pci_dev *	dev,
		struct msi_desc *	desc
	)

Called when a driver request MSI interrupts instead of the legacy INT A-D. This routine will allocate multiple interrupts for MSI devices that support them. A device can override this by programming the MSI control bits [6:4] before calling pci_enable_msi().

: Device requesting MSI interrupts : MSI descriptor

Returns 0 on success.

Definition at line 59 of file msi-octeon.c.

int arch_setup_msi_irqs	(	struct pci_dev *	dev,
		int	nvec,
		int	type
	)

Definition at line 180 of file msi-octeon.c.

void arch_teardown_msi_irq

(

unsigned int

irq

)

Called when a device no longer needs its MSI interrupts. All MSI interrupts for the device are freed.

: The devices first irq number. There may be multple in sequence.

Definition at line 215 of file msi-octeon.c.

int __init octeon_msi_initialize

(

void

)

Definition at line 362 of file msi-octeon.c.

OCTEON_MSI_INT_HANDLER_X

(

0

)

OCTEON_MSI_INT_HANDLER_X

(

1

)

OCTEON_MSI_INT_HANDLER_X

(

2

)

OCTEON_MSI_INT_HANDLER_X

(

3

)

subsys_initcall

(

octeon_msi_initialize

)