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MIPS: Octeon: Rewrite interrupt handling code.

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This includes conversion to new style irq_chip functions, and
correctly enabling/disabling per-CPU interrupts.

The hardware interrupt bit to irq number mapping is now done with a
flexible map, instead of by bit twiddling the irq number.

[ tglx: Adjusted to new irq_cpu_on/offline callbacks and
        __irq_set_affinity_lock ]

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: linux-mips@linux-mips.org
Cc: ralf@linux-mips.org
LKML-Reference: <1301081931-11240-5-git-send-email-ddaney@caviumnetworks.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
David Daney
2011-03-25 12:38:51 -07:00
committed by Thomas Gleixner
parent a458465641
commit 0c3263870f
6 changed files with 998 additions and 894 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
arch/mips/pci/msi-octeon.c
View File

@@ -259,11 +259,11 @@ static DEFINE_RAW_SPINLOCK(octeon_irq_msi_lock);
static u64 msi_rcv_reg[4];
static u64 mis_ena_reg[4];
static void octeon_irq_msi_enable_pcie(unsigned int irq)
static void octeon_irq_msi_enable_pcie(struct irq_data *data)
{
u64 en;
unsigned long flags;
int msi_number = irq - OCTEON_IRQ_MSI_BIT0;
int msi_number = data->irq - OCTEON_IRQ_MSI_BIT0;
int irq_index = msi_number >> 6;
int irq_bit = msi_number & 0x3f;
@@ -275,11 +275,11 @@ static void octeon_irq_msi_enable_pcie(unsigned int irq)
raw_spin_unlock_irqrestore(&octeon_irq_msi_lock, flags);
}
static void octeon_irq_msi_disable_pcie(unsigned int irq)
static void octeon_irq_msi_disable_pcie(struct irq_data *data)
{
u64 en;
unsigned long flags;
int msi_number = irq - OCTEON_IRQ_MSI_BIT0;
int msi_number = data->irq - OCTEON_IRQ_MSI_BIT0;
int irq_index = msi_number >> 6;
int irq_bit = msi_number & 0x3f;
@@ -293,11 +293,11 @@ static void octeon_irq_msi_disable_pcie(unsigned int irq)
static struct irq_chip octeon_irq_chip_msi_pcie = {
.name = "MSI",
.enable = octeon_irq_msi_enable_pcie,
.disable = octeon_irq_msi_disable_pcie,
.irq_enable = octeon_irq_msi_enable_pcie,
.irq_disable = octeon_irq_msi_disable_pcie,
};
static void octeon_irq_msi_enable_pci(unsigned int irq)
static void octeon_irq_msi_enable_pci(struct irq_data *data)
{
/*
* Octeon PCI doesn't have the ability to mask/unmask MSI
@@ -308,15 +308,15 @@ static void octeon_irq_msi_enable_pci(unsigned int irq)
*/
}
static void octeon_irq_msi_disable_pci(unsigned int irq)
static void octeon_irq_msi_disable_pci(struct irq_data *data)
{
/* See comment in enable */
}
static struct irq_chip octeon_irq_chip_msi_pci = {
.name = "MSI",
.enable = octeon_irq_msi_enable_pci,
.disable = octeon_irq_msi_disable_pci,
.irq_enable = octeon_irq_msi_enable_pci,
.irq_disable = octeon_irq_msi_disable_pci,
};
/*