From 08678b0841267c1d00d771fe01548d86043d065e Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:05 -0700 Subject: generic: sparse irqs: use irq_desc() together with dyn_array, instead of irq_desc[] add CONFIG_HAVE_SPARSE_IRQ to for use condensed array. Get rid of irq_desc[] array assumptions. Preallocate 32 irq_desc, and irq_desc() will try to get more. ( No change in functionality is expected anywhere, except the odd build failure where we missed a code site or where a crossing commit itroduces new irq_desc[] usage. ) v2: according to Eric, change get_irq_desc() to irq_desc() Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- drivers/parisc/dino.c | 6 ++++-- drivers/parisc/eisa.c | 4 ++-- drivers/parisc/gsc.c | 12 ++++++++---- drivers/parisc/iosapic.c | 4 +++- drivers/parisc/superio.c | 4 +++- 5 files changed, 20 insertions(+), 10 deletions(-) (limited to 'drivers/parisc') diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c index fd56128525d..3bc54b30c3a 100644 --- a/drivers/parisc/dino.c +++ b/drivers/parisc/dino.c @@ -298,7 +298,8 @@ struct pci_port_ops dino_port_ops = { static void dino_disable_irq(unsigned int irq) { - struct dino_device *dino_dev = irq_desc[irq].chip_data; + struct irq_desc *desc = irq_to_desc(irq); + struct dino_device *dino_dev = desc->chip_data; int local_irq = gsc_find_local_irq(irq, dino_dev->global_irq, DINO_LOCAL_IRQS); DBG(KERN_WARNING "%s(0x%p, %d)\n", __func__, dino_dev, irq); @@ -310,7 +311,8 @@ static void dino_disable_irq(unsigned int irq) static void dino_enable_irq(unsigned int irq) { - struct dino_device *dino_dev = irq_desc[irq].chip_data; + struct irq_desc *desc = irq_to_desc(irq); + struct dino_device *dino_dev = desc->chip_data; int local_irq = gsc_find_local_irq(irq, dino_dev->global_irq, DINO_LOCAL_IRQS); u32 tmp; diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c index 771cef59254..7891db50c48 100644 --- a/drivers/parisc/eisa.c +++ b/drivers/parisc/eisa.c @@ -346,10 +346,10 @@ static int __init eisa_probe(struct parisc_device *dev) } /* Reserve IRQ2 */ - irq_desc[2].action = &irq2_action; + irq_to_desc(2)->action = &irq2_action; for (i = 0; i < 16; i++) { - irq_desc[i].chip = &eisa_interrupt_type; + irq_to_desc(i)->chip = &eisa_interrupt_type; } EISA_bus = 1; diff --git a/drivers/parisc/gsc.c b/drivers/parisc/gsc.c index f7d088b897e..e76db9e4d50 100644 --- a/drivers/parisc/gsc.c +++ b/drivers/parisc/gsc.c @@ -108,7 +108,8 @@ int gsc_find_local_irq(unsigned int irq, int *global_irqs, int limit) static void gsc_asic_disable_irq(unsigned int irq) { - struct gsc_asic *irq_dev = irq_desc[irq].chip_data; + struct irq_desc *desc = irq_to_desc(irq); + struct gsc_asic *irq_dev = desc->chip_data; int local_irq = gsc_find_local_irq(irq, irq_dev->global_irq, 32); u32 imr; @@ -123,7 +124,8 @@ static void gsc_asic_disable_irq(unsigned int irq) static void gsc_asic_enable_irq(unsigned int irq) { - struct gsc_asic *irq_dev = irq_desc[irq].chip_data; + struct irq_desc *desc = irq_to_desc(irq); + struct gsc_asic *irq_dev = desc->chip_data; int local_irq = gsc_find_local_irq(irq, irq_dev->global_irq, 32); u32 imr; @@ -159,12 +161,14 @@ static struct hw_interrupt_type gsc_asic_interrupt_type = { int gsc_assign_irq(struct hw_interrupt_type *type, void *data) { static int irq = GSC_IRQ_BASE; + struct irq_desc *desc; if (irq > GSC_IRQ_MAX) return NO_IRQ; - irq_desc[irq].chip = type; - irq_desc[irq].chip_data = data; + desc = irq_to_desc(irq); + desc->chip = type; + desc->chip_data = data; return irq++; } diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c index 6fb3f7979f2..7beffcab274 100644 --- a/drivers/parisc/iosapic.c +++ b/drivers/parisc/iosapic.c @@ -619,7 +619,9 @@ iosapic_set_irt_data( struct vector_info *vi, u32 *dp0, u32 *dp1) static struct vector_info *iosapic_get_vector(unsigned int irq) { - return irq_desc[irq].chip_data; + struct irq_desc *desc = irq_to_desc(irq); + + return desc->chip_data; } static void iosapic_disable_irq(unsigned int irq) diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c index 1e8d2d17f04..1e93c837514 100644 --- a/drivers/parisc/superio.c +++ b/drivers/parisc/superio.c @@ -363,7 +363,9 @@ int superio_fixup_irq(struct pci_dev *pcidev) #endif for (i = 0; i < 16; i++) { - irq_desc[i].chip = &superio_interrupt_type; + struct irq_desc *desc = irq_to_desc(i); + + desc->chip = &superio_interrupt_type; } /* -- cgit v1.2.3