powerpc/irq: Stop exporting irq_map

First step in eliminating irq_map[] table entirely

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

30 files changed, 148 insertions, 222 deletions

diff --git a/arch/powerpc/include/asm/irq.h b/arch/powerpc/include/asm/irq.h
index 47b7905a636..e1983d57768 100644
--- a/arch/powerpc/include/asm/irq.h
+++ b/arch/powerpc/include/asm/irq.h
@@ -128,25 +128,10 @@ struct irq_host {
 	struct device_node	*of_node;
 };
 
-/* The main irq map itself is an array of NR_IRQ entries containing the
- * associate host and irq number. An entry with a host of NULL is free.
- * An entry can be allocated if it's free, the allocator always then sets
- * hwirq first to the host's invalid irq number and then fills ops.
- */
-struct irq_map_entry {
-	irq_hw_number_t	hwirq;
-	struct irq_host	*host;
-};
-
-extern struct irq_map_entry irq_map[NR_IRQS];
-
+struct irq_data;
+extern irq_hw_number_t irqd_to_hwirq(struct irq_data *d);
 extern irq_hw_number_t virq_to_hw(unsigned int virq);
-
-/* This will eventually -replace- virq_to_hw if/when we stash the
- * HW number in the irq_data itself. We use a macro so we can inline
- * it as irq_data isn't defined yet
- */
-#define irq_data_to_hw(d) (irq_map[(d)->irq].hwirq)
+extern struct irq_host *virq_to_host(unsigned int virq);
 
 /**
  * irq_alloc_host - Allocate a new irq_host data structure
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 4f5d6e751a6..a81dd74414b 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -481,20 +481,42 @@ void do_softirq(void)
  * IRQ controller and virtual interrupts
  */
 
+/* The main irq map itself is an array of NR_IRQ entries containing the
+ * associate host and irq number. An entry with a host of NULL is free.
+ * An entry can be allocated if it's free, the allocator always then sets
+ * hwirq first to the host's invalid irq number and then fills ops.
+ */
+struct irq_map_entry {
+	irq_hw_number_t	hwirq;
+	struct irq_host	*host;
+};
+
 static LIST_HEAD(irq_hosts);
 static DEFINE_RAW_SPINLOCK(irq_big_lock);
 static unsigned int revmap_trees_allocated;
 static DEFINE_MUTEX(revmap_trees_mutex);
-struct irq_map_entry irq_map[NR_IRQS];
+static struct irq_map_entry irq_map[NR_IRQS];
 static unsigned int irq_virq_count = NR_IRQS;
 static struct irq_host *irq_default_host;
 
+irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
+{
+	return irq_map[d->irq].hwirq;
+}
+EXPORT_SYMBOL_GPL(irqd_to_hwirq);
+
 irq_hw_number_t virq_to_hw(unsigned int virq)
 {
 	return irq_map[virq].hwirq;
 }
 EXPORT_SYMBOL_GPL(virq_to_hw);
 
+struct irq_host *virq_to_host(unsigned int virq)
+{
+	return irq_map[virq].host;
+}
+EXPORT_SYMBOL_GPL(virq_to_host);
+
 static int default_irq_host_match(struct irq_host *h, struct device_node *np)
 {
 	return h->of_node != NULL && h->of_node == np;
@@ -1103,7 +1125,7 @@ static int virq_debug_show(struct seq_file *m, void *private)
 			struct irq_chip *chip;
 
 			seq_printf(m, "%5d  ", i);
-			seq_printf(m, "0x%05lx  ", virq_to_hw(i));
+			seq_printf(m, "0x%05lx  ", irq_map[i].hwirq);
 
 			chip = irq_desc_get_chip(desc);
 			if (chip && chip->name)
diff --git a/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c b/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
index cfc4b200998..a8bc0d44393 100644
--- a/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
+++ b/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
@@ -61,7 +61,7 @@ irq_to_pic_bit(unsigned int irq)
 static void
 cpld_mask_irq(struct irq_data *d)
 {
-	unsigned int cpld_irq = (unsigned int)irq_map[d->irq].hwirq;
+	unsigned int cpld_irq = (unsigned int)irqd_to_hwirq(d);
 	void __iomem *pic_mask = irq_to_pic_mask(cpld_irq);
 
 	out_8(pic_mask,
@@ -71,7 +71,7 @@ cpld_mask_irq(struct irq_data *d)
 static void
 cpld_unmask_irq(struct irq_data *d)
 {
-	unsigned int cpld_irq = (unsigned int)irq_map[d->irq].hwirq;
+	unsigned int cpld_irq = (unsigned int)irqd_to_hwirq(d);
 	void __iomem *pic_mask = irq_to_pic_mask(cpld_irq);
 
 	out_8(pic_mask,
diff --git a/arch/powerpc/platforms/52xx/media5200.c b/arch/powerpc/platforms/52xx/media5200.c
index 57a6a349e93..96f85e5e0cd 100644
--- a/arch/powerpc/platforms/52xx/media5200.c
+++ b/arch/powerpc/platforms/52xx/media5200.c
@@ -56,7 +56,7 @@ static void media5200_irq_unmask(struct irq_data *d)
 
 	spin_lock_irqsave(&media5200_irq.lock, flags);
 	val = in_be32(media5200_irq.regs + MEDIA5200_IRQ_ENABLE);
-	val |= 1 << (MEDIA5200_IRQ_SHIFT + irq_map[d->irq].hwirq);
+	val |= 1 << (MEDIA5200_IRQ_SHIFT + irqd_to_hwirq(d));
 	out_be32(media5200_irq.regs + MEDIA5200_IRQ_ENABLE, val);
 	spin_unlock_irqrestore(&media5200_irq.lock, flags);
 }
@@ -68,7 +68,7 @@ static void media5200_irq_mask(struct irq_data *d)
 
 	spin_lock_irqsave(&media5200_irq.lock, flags);
 	val = in_be32(media5200_irq.regs + MEDIA5200_IRQ_ENABLE);
-	val &= ~(1 << (MEDIA5200_IRQ_SHIFT + irq_map[d->irq].hwirq));
+	val &= ~(1 << (MEDIA5200_IRQ_SHIFT + irqd_to_hwirq(d)));
 	out_be32(media5200_irq.regs + MEDIA5200_IRQ_ENABLE, val);
 	spin_unlock_irqrestore(&media5200_irq.lock, flags);
 }
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pic.c b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
index 1dd15400f6f..bb611819b83 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pic.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
@@ -157,48 +157,30 @@ static inline void io_be_clrbit(u32 __iomem *addr, int bitno)
  */
 static void mpc52xx_extirq_mask(struct irq_data *d)
 {
-	int irq;
-	int l2irq;
-
-	irq = irq_map[d->irq].hwirq;
-	l2irq = irq & MPC52xx_IRQ_L2_MASK;
-
+	int l2irq = irqd_to_hwirq(d) & MPC52xx_IRQ_L2_MASK;
 	io_be_clrbit(&intr->ctrl, 11 - l2irq);
 }
 
 static void mpc52xx_extirq_unmask(struct irq_data *d)
 {
-	int irq;
-	int l2irq;
-
-	irq = irq_map[d->irq].hwirq;
-	l2irq = irq & MPC52xx_IRQ_L2_MASK;
-
+	int l2irq = irqd_to_hwirq(d) & MPC52xx_IRQ_L2_MASK;
 	io_be_setbit(&intr->ctrl, 11 - l2irq);
 }
 
 static void mpc52xx_extirq_ack(struct irq_data *d)
 {
-	int irq;
-	int l2irq;
-
-	irq = irq_map[d->irq].hwirq;
-	l2irq = irq & MPC52xx_IRQ_L2_MASK;
-
+	int l2irq = irqd_to_hwirq(d) & MPC52xx_IRQ_L2_MASK;
 	io_be_setbit(&intr->ctrl, 27-l2irq);
 }
 
 static int mpc52xx_extirq_set_type(struct irq_data *d, unsigned int flow_type)
 {
 	u32 ctrl_reg, type;
-	int irq;
-	int l2irq;
+	int l2irq = irqd_to_hwirq(d) & MPC52xx_IRQ_L2_MASK;
 	void *handler = handle_level_irq;
 
-	irq = irq_map[d->irq].hwirq;
-	l2irq = irq & MPC52xx_IRQ_L2_MASK;
-
-	pr_debug("%s: irq=%x. l2=%d flow_type=%d\n", __func__, irq, l2irq, flow_type);
+	pr_debug("%s: irq=%x. l2=%d flow_type=%d\n", __func__,
+		(int) irqd_to_hwirq(d), l2irq, flow_type);
 
 	switch (flow_type) {
 	case IRQF_TRIGGER_HIGH: type = 0; break;
@@ -237,23 +219,13 @@ static int mpc52xx_null_set_type(struct irq_data *d, unsigned int flow_type)
 
 static void mpc52xx_main_mask(struct irq_data *d)
 {
-	int irq;
-	int l2irq;
-
-	irq = irq_map[d->irq].hwirq;
-	l2irq = irq & MPC52xx_IRQ_L2_MASK;
-
+	int l2irq = irqd_to_hwirq(d) & MPC52xx_IRQ_L2_MASK;
 	io_be_setbit(&intr->main_mask, 16 - l2irq);
 }
 
 static void mpc52xx_main_unmask(struct irq_data *d)
 {
-	int irq;
-	int l2irq;
-
-	irq = irq_map[d->irq].hwirq;
-	l2irq = irq & MPC52xx_IRQ_L2_MASK;
-
+	int l2irq = irqd_to_hwirq(d) & MPC52xx_IRQ_L2_MASK;
 	io_be_clrbit(&intr->main_mask, 16 - l2irq);
 }
 
@@ -270,23 +242,13 @@ static struct irq_chip mpc52xx_main_irqchip = {
  */
 static void mpc52xx_periph_mask(struct irq_data *d)
 {
-	int irq;
-	int l2irq;
-
-	irq = irq_map[d->irq].hwirq;
-	l2irq = irq & MPC52xx_IRQ_L2_MASK;
-
+	int l2irq = irqd_to_hwirq(d) & MPC52xx_IRQ_L2_MASK;
 	io_be_setbit(&intr->per_mask, 31 - l2irq);
 }
 
 static void mpc52xx_periph_unmask(struct irq_data *d)
 {
-	int irq;
-	int l2irq;
-
-	irq = irq_map[d->irq].hwirq;
-	l2irq = irq & MPC52xx_IRQ_L2_MASK;
-
+	int l2irq = irqd_to_hwirq(d) & MPC52xx_IRQ_L2_MASK;
 	io_be_clrbit(&intr->per_mask, 31 - l2irq);
 }
 
@@ -303,34 +265,19 @@ static struct irq_chip mpc52xx_periph_irqchip = {
  */
 static void mpc52xx_sdma_mask(struct irq_data *d)
 {
-	int irq;
-	int l2irq;
-
-	irq = irq_map[d->irq].hwirq;
-	l2irq = irq & MPC52xx_IRQ_L2_MASK;
-
+	int l2irq = irqd_to_hwirq(d) & MPC52xx_IRQ_L2_MASK;
 	io_be_setbit(&sdma->IntMask, l2irq);
 }
 
 static void mpc52xx_sdma_unmask(struct irq_data *d)
 {
-	int irq;
-	int l2irq;
-
-	irq = irq_map[d->irq].hwirq;
-	l2irq = irq & MPC52xx_IRQ_L2_MASK;
-
+	int l2irq = irqd_to_hwirq(d) & MPC52xx_IRQ_L2_MASK;
 	io_be_clrbit(&sdma->IntMask, l2irq);
 }
 
 static void mpc52xx_sdma_ack(struct irq_data *d)
 {
-	int irq;
-	int l2irq;
-
-	irq = irq_map[d->irq].hwirq;
-	l2irq = irq & MPC52xx_IRQ_L2_MASK;
-
+	int l2irq = irqd_to_hwirq(d) & MPC52xx_IRQ_L2_MASK;
 	out_be32(&sdma->IntPend, 1 << l2irq);
 }
 
diff --git a/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c b/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
index 4a4eb6ffa12..5d6c34ce0cb 100644
--- a/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
+++ b/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
@@ -42,7 +42,7 @@ struct pq2ads_pci_pic {
 static void pq2ads_pci_mask_irq(struct irq_data *d)
 {
 	struct pq2ads_pci_pic *priv = irq_data_get_irq_chip_data(d);
-	int irq = NUM_IRQS - virq_to_hw(d->irq) - 1;
+	int irq = NUM_IRQS - irqd_to_hwirq(d) - 1;
 
 	if (irq != -1) {
 		unsigned long flags;
@@ -58,7 +58,7 @@ static void pq2ads_pci_mask_irq(struct irq_data *d)
 static void pq2ads_pci_unmask_irq(struct irq_data *d)
 {
 	struct pq2ads_pci_pic *priv = irq_data_get_irq_chip_data(d);
-	int irq = NUM_IRQS - virq_to_hw(d->irq) - 1;
+	int irq = NUM_IRQS - irqd_to_hwirq(d) - 1;
 
 	if (irq != -1) {
 		unsigned long flags;
diff --git a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
index db864623b4a..12cb9bb2cc6 100644
--- a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
+++ b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
@@ -48,8 +48,6 @@ static struct socrates_fpga_irq_info fpga_irqs[SOCRATES_FPGA_NUM_IRQS] = {
 	[8] = {0, IRQ_TYPE_LEVEL_HIGH},
 };
 
-#define socrates_fpga_irq_to_hw(virq)    ((unsigned int)irq_map[virq].hwirq)
-
 static DEFINE_RAW_SPINLOCK(socrates_fpga_pic_lock);
 
 static void __iomem *socrates_fpga_pic_iobase;
@@ -110,11 +108,9 @@ void socrates_fpga_pic_cascade(unsigned int irq, struct irq_desc *desc)
 static void socrates_fpga_pic_ack(struct irq_data *d)
 {
 	unsigned long flags;
-	unsigned int hwirq, irq_line;
+	unsigned int irq_line, hwirq = irqd_to_hwirq(d);
 	uint32_t mask;
 
-	hwirq = socrates_fpga_irq_to_hw(d->irq);
-
 	irq_line = fpga_irqs[hwirq].irq_line;
 	raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
 	mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line))
@@ -127,12 +123,10 @@ static void socrates_fpga_pic_ack(struct irq_data *d)
 static void socrates_fpga_pic_mask(struct irq_data *d)
 {
 	unsigned long flags;
-	unsigned int hwirq;
+	unsigned int hwirq = irqd_to_hwirq(d);
 	int irq_line;
 	u32 mask;
 
-	hwirq = socrates_fpga_irq_to_hw(d->irq);
-
 	irq_line = fpga_irqs[hwirq].irq_line;
 	raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
 	mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line))
@@ -145,12 +139,10 @@ static void socrates_fpga_pic_mask(struct irq_data *d)
 static void socrates_fpga_pic_mask_ack(struct irq_data *d)
 {
 	unsigned long flags;
-	unsigned int hwirq;
+	unsigned int hwirq = irqd_to_hwirq(d);
 	int irq_line;
 	u32 mask;
 
-	hwirq = socrates_fpga_irq_to_hw(d->irq);
-
 	irq_line = fpga_irqs[hwirq].irq_line;
 	raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
 	mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line))
@@ -164,12 +156,10 @@ static void socrates_fpga_pic_mask_ack(struct irq_data *d)
 static void socrates_fpga_pic_unmask(struct irq_data *d)
 {
 	unsigned long flags;
-	unsigned int hwirq;
+	unsigned int hwirq = irqd_to_hwirq(d);
 	int irq_line;
 	u32 mask;
 
-	hwirq = socrates_fpga_irq_to_hw(d->irq);
-
 	irq_line = fpga_irqs[hwirq].irq_line;
 	raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
 	mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line))
@@ -182,12 +172,10 @@ static void socrates_fpga_pic_unmask(struct irq_data *d)
 static void socrates_fpga_pic_eoi(struct irq_data *d)
 {
 	unsigned long flags;
-	unsigned int hwirq;
+	unsigned int hwirq = irqd_to_hwirq(d);
 	int irq_line;
 	u32 mask;
 
-	hwirq = socrates_fpga_irq_to_hw(d->irq);
-
 	irq_line = fpga_irqs[hwirq].irq_line;
 	raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
 	mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line))
@@ -201,12 +189,10 @@ static int socrates_fpga_pic_set_type(struct irq_data *d,
 		unsigned int flow_type)
 {
 	unsigned long flags;
-	unsigned int hwirq;
+	unsigned int hwirq = irqd_to_hwirq(d);
 	int polarity;
 	u32 mask;
 
-	hwirq = socrates_fpga_irq_to_hw(d->irq);
-
 	if (fpga_irqs[hwirq].type != IRQ_TYPE_NONE)
 		return -EINVAL;
 
diff --git a/arch/powerpc/platforms/86xx/gef_pic.c b/arch/powerpc/platforms/86xx/gef_pic.c
index 0beec7d5566..94594e58594 100644
--- a/arch/powerpc/platforms/86xx/gef_pic.c
+++ b/arch/powerpc/platforms/86xx/gef_pic.c
@@ -46,8 +46,6 @@
 #define GEF_PIC_CPU0_MCP_MASK	GEF_PIC_MCP_MASK(0)
 #define GEF_PIC_CPU1_MCP_MASK	GEF_PIC_MCP_MASK(1)
 
-#define gef_irq_to_hw(virq)    ((unsigned int)irq_map[virq].hwirq)
-
 
 static DEFINE_RAW_SPINLOCK(gef_pic_lock);
 
@@ -113,11 +111,9 @@ void gef_pic_cascade(unsigned int irq, struct irq_desc *desc)
 static void gef_pic_mask(struct irq_data *d)
 {
 	unsigned long flags;
-	unsigned int hwirq;
+	unsigned int hwirq = irqd_to_hwirq(d);
 	u32 mask;
 
-	hwirq = gef_irq_to_hw(d->irq);
-
 	raw_spin_lock_irqsave(&gef_pic_lock, flags);
 	mask = in_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_MASK(0));
 	mask &= ~(1 << hwirq);
@@ -136,11 +132,9 @@ static void gef_pic_mask_ack(struct irq_data *d)
 static void gef_pic_unmask(struct irq_data *d)
 {
 	unsigned long flags;
-	unsigned int hwirq;
+	unsigned int hwirq = irqd_to_hwirq(d);
 	u32 mask;
 
-	hwirq = gef_irq_to_hw(d->irq);
-
 	raw_spin_lock_irqsave(&gef_pic_lock, flags);
 	mask = in_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_MASK(0));
 	mask |= (1 << hwirq);
diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c
index 9ecce995dd4..1e121088826 100644
--- a/arch/powerpc/platforms/8xx/m8xx_setup.c
+++ b/arch/powerpc/platforms/8xx/m8xx_setup.c
@@ -150,7 +150,7 @@ void __init mpc8xx_calibrate_decr(void)
 	 */
 	cpu = of_find_node_by_type(NULL, "cpu");
 	virq= irq_of_parse_and_map(cpu, 0);
-	irq = irq_map[virq].hwirq;
+	irq = virq_to_hw(virq);
 
 	sys_tmr2 = immr_map(im_sit);
 	out_be16(&sys_tmr2->sit_tbscr, ((1 << (7 - (irq/2))) << 8) |
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c
index bb5ebf8fa80..1e3329e8578 100644
--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -113,7 +113,7 @@ static void axon_msi_cascade(unsigned int irq, struct irq_desc *desc)
 		pr_devel("axon_msi: woff %x roff %x msi %x\n",
 			  write_offset, msic->read_offset, msi);
 
-		if (msi < NR_IRQS && irq_map[msi].host == msic->irq_host) {
+		if (msi < NR_IRQS && virq_to_host(msi) == msic->irq_host) {
 			generic_handle_irq(msi);
 			msic->fifo_virt[idx] = cpu_to_le32(0xffffffff);
 		} else {
diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c
index c5cf50e6b45..34d2b99d10c 100644
--- a/arch/powerpc/platforms/cell/spider-pic.c
+++ b/arch/powerpc/platforms/cell/spider-pic.c
@@ -70,7 +70,7 @@ static struct spider_pic spider_pics[SPIDER_CHIP_COUNT];
 
 static struct spider_pic *spider_virq_to_pic(unsigned int virq)
 {
-	return irq_map[virq].host->host_data;
+	return virq_to_host(virq)->host_data;
 }
 
 static void __iomem *spider_get_irq_config(struct spider_pic *pic,
@@ -82,7 +82,7 @@ static void __iomem *spider_get_irq_config(struct spider_pic *pic,
 static void spider_unmask_irq(struct irq_data *d)
 {
 	struct spider_pic *pic = spider_virq_to_pic(d->irq);
-	void __iomem *cfg = spider_get_irq_config(pic, irq_map[d->irq].hwirq);
+	void __iomem *cfg = spider_get_irq_config(pic, irqd_to_hwirq(d));
 
 	out_be32(cfg, in_be32(cfg) | 0x30000000u);
 }
@@ -90,7 +90,7 @@ static void spider_unmask_irq(struct irq_data *d)
 static void spider_mask_irq(struct irq_data *d)
 {
 	struct spider_pic *pic = spider_virq_to_pic(d->irq);
-	void __iomem *cfg = spider_get_irq_config(pic, irq_map[d->irq].hwirq);
+	void __iomem *cfg = spider_get_irq_config(pic, irqd_to_hwirq(d));
 
 	out_be32(cfg, in_be32(cfg) & ~0x30000000u);
 }
@@ -98,7 +98,7 @@ static void spider_mask_irq(struct irq_data *d)
 static void spider_ack_irq(struct irq_data *d)
 {
 	struct spider_pic *pic = spider_virq_to_pic(d->irq);
-	unsigned int src = irq_map[d->irq].hwirq;
+	unsigned int src = irqd_to_hwirq(d);
 
 	/* Reset edge detection logic if necessary
 	 */
@@ -117,7 +117,7 @@ static int spider_set_irq_type(struct irq_data *d, unsigned int type)
 {
 	unsigned int sense = type & IRQ_TYPE_SENSE_MASK;
 	struct spider_pic *pic = spider_virq_to_pic(d->irq);
-	unsigned int hw = irq_map[d->irq].hwirq;
+	unsigned int hw = irqd_to_hwirq(d);
 	void __iomem *cfg = spider_get_irq_config(pic, hw);
 	u32 old_mask;
 	u32 ic;
diff --git a/arch/powerpc/platforms/embedded6xx/flipper-pic.c b/arch/powerpc/platforms/embedded6xx/flipper-pic.c
index 12aa62b6f22..77cbe4c8f95 100644
--- a/arch/powerpc/platforms/embedded6xx/flipper-pic.c
+++ b/arch/powerpc/platforms/embedded6xx/flipper-pic.c
@@ -48,7 +48,7 @@
 
 static void flipper_pic_mask_and_ack(struct irq_data *d)
 {
-	int irq = virq_to_hw(d->irq);
+	int irq = irqd_to_hwirq(d);
 	void __iomem *io_base = irq_data_get_irq_chip_data(d);
 	u32 mask = 1 << irq;
 
@@ -59,7 +59,7 @@ static void flipper_pic_mask_and_ack(struct irq_data *d)
 
 static void flipper_pic_ack(struct irq_data *d)
 {
-	int irq = virq_to_hw(d->irq);
+	int irq = irqd_to_hwirq(d);
 	void __iomem *io_base = irq_data_get_irq_chip_data(d);
 
 	/* this is at least needed for RSW */
@@ -68,7 +68,7 @@ static void flipper_pic_ack(struct irq_data *d)
 
 static void flipper_pic_mask(struct irq_data *d)
 {
-	int irq = virq_to_hw(d->irq);
+	int irq = irqd_to_hwirq(d);
 	void __iomem *io_base = irq_data_get_irq_chip_data(d);
 
 	clrbits32(io_base + FLIPPER_IMR, 1 << irq);
@@ -76,7 +76,7 @@ static void flipper_pic_mask(struct irq_data *d)
 
 static void flipper_pic_unmask(struct irq_data *d)
 {
-	int irq = virq_to_hw(d->irq);
+	int irq = irqd_to_hwirq(d);
 	void __iomem *io_base = irq_data_get_irq_chip_data(d);
 
 	setbits32(io_base + FLIPPER_IMR, 1 << irq);
diff --git a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
index 2bdddfc9d52..44b398b0a2f 100644
--- a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
+++ b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
@@ -43,7 +43,7 @@
 
 static void hlwd_pic_mask_and_ack(struct irq_data *d)
 {
-	int irq = virq_to_hw(d->irq);
+	int irq = irqd_to_hwirq(d);
 	void __iomem *io_base = irq_data_get_irq_chip_data(d);
 	u32 mask = 1 << irq;
 
@@ -53,7 +53,7 @@ static void hlwd_pic_mask_and_ack(struct irq_data *d)
 
 static void hlwd_pic_ack(struct irq_data *d)
 {
-	int irq = virq_to_hw(d->irq);
+	int irq = irqd_to_hwirq(d);
 	void __iomem *io_base = irq_data_get_irq_chip_data(d);
 
 	out_be32(io_base + HW_BROADWAY_ICR, 1 << irq);
@@ -61,7 +61,7 @@ static void hlwd_pic_ack(struct irq_data *d)
 
 static void hlwd_pic_mask(struct irq_data *d)
 {
-	int irq = virq_to_hw(d->irq);
+	int irq = irqd_to_hwirq(d);
 	void __iomem *io_base = irq_data_get_irq_chip_data(d);
 
 	clrbits32(io_base + HW_BROADWAY_IMR, 1 << irq);
@@ -69,7 +69,7 @@ static void hlwd_pic_mask(struct irq_data *d)
 
 static void hlwd_pic_unmask(struct irq_data *d)
 {
-	int irq = virq_to_hw(d->irq);
+	int irq = irqd_to_hwirq(d);
 	void __iomem *io_base = irq_data_get_irq_chip_data(d);
 
 	setbits32(io_base + HW_BROADWAY_IMR, 1 << irq);
diff --git a/arch/powerpc/platforms/iseries/irq.c b/arch/powerpc/platforms/iseries/irq.c
index 52a6889832c..375c21ca660 100644
--- a/arch/powerpc/platforms/iseries/irq.c
+++ b/arch/powerpc/platforms/iseries/irq.c
@@ -171,7 +171,7 @@ static void iseries_enable_IRQ(struct irq_data *d)
 {
 	u32 bus, dev_id, function, mask;
 	const u32 sub_bus = 0;
-	unsigned int rirq = (unsigned int)irq_map[d->irq].hwirq;
+	unsigned int rirq = (unsigned int)irqd_to_hwirq(d);
 
 	/* The IRQ has already been locked by the caller */
 	bus = REAL_IRQ_TO_BUS(rirq);
@@ -188,7 +188,7 @@ static unsigned int iseries_startup_IRQ(struct irq_data *d)
 {
 	u32 bus, dev_id, function, mask;
 	const u32 sub_bus = 0;
-	unsigned int rirq = (unsigned int)irq_map[d->irq].hwirq;
+	unsigned int rirq = (unsigned int)irqd_to_hwirq(d);
 
 	bus = REAL_IRQ_TO_BUS(rirq);
 	function = REAL_IRQ_TO_FUNC(rirq);
@@ -234,7 +234,7 @@ static void iseries_shutdown_IRQ(struct irq_data *d)
 {
 	u32 bus, dev_id, function, mask;
 	const u32 sub_bus = 0;
-	unsigned int rirq = (unsigned int)irq_map[d->irq].hwirq;
+	unsigned int rirq = (unsigned int)irqd_to_hwirq(d);
 
 	/* irq should be locked by the caller */
 	bus = REAL_IRQ_TO_BUS(rirq);
@@ -257,7 +257,7 @@ static void iseries_disable_IRQ(struct irq_data *d)
 {
 	u32 bus, dev_id, function, mask;
 	const u32 sub_bus = 0;
-	unsigned int rirq = (unsigned int)irq_map[d->irq].hwirq;
+	unsigned int rirq = (unsigned int)irqd_to_hwirq(d);
 
 	/* The IRQ has already been locked by the caller */
 	bus = REAL_IRQ_TO_BUS(rirq);
@@ -271,7 +271,7 @@ static void iseries_disable_IRQ(struct irq_data *d)
 
 static void iseries_end_IRQ(struct irq_data *d)
 {
-	unsigned int rirq = (unsigned int)irq_map[d->irq].hwirq;
+	unsigned int rirq = (unsigned int)irqd_to_hwirq(d);
 
 	HvCallPci_eoi(REAL_IRQ_TO_BUS(rirq), REAL_IRQ_TO_SUBBUS(rirq),
 		(REAL_IRQ_TO_IDSEL(rirq) << 4) + REAL_IRQ_TO_FUNC(rirq));
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index 023f24086a0..2f34ad04029 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -84,7 +84,7 @@ static void __pmac_retrigger(unsigned int irq_nr)
 
 static void pmac_mask_and_ack_irq(struct irq_data *d)
 {
-	unsigned int src = irq_map[d->irq].hwirq;
+	unsigned int src = irqd_to_hwirq(d);
         unsigned long bit = 1UL << (src & 0x1f);
         int i = src >> 5;
         unsigned long flags;
@@ -106,7 +106,7 @@ static void pmac_mask_and_ack_irq(struct irq_data *d)
 
 static void pmac_ack_irq(struct irq_data *d)
 {
-	unsigned int src = irq_map[d->irq].hwirq;
+	unsigned int src = irqd_to_hwirq(d);
         unsigned long bit = 1UL << (src & 0x1f);
         int i = src >> 5;
         unsigned long flags;
@@ -152,7 +152,7 @@ static void __pmac_set_irq_mask(unsigned int irq_nr, int nokicklost)
 static unsigned int pmac_startup_irq(struct irq_data *d)
 {
 	unsigned long flags;
-	unsigned int src = irq_map[d->irq].hwirq;
+	unsigned int src = irqd_to_hwirq(d);
         unsigned long bit = 1UL << (src & 0x1f);
         int i = src >> 5;
 
@@ -169,7 +169,7 @@ static unsigned int pmac_startup_irq(struct irq_data *d)
 static void pmac_mask_irq(struct irq_data *d)
 {
 	unsigned long flags;
-	unsigned int src = irq_map[d->irq].hwirq;
+	unsigned int src = irqd_to_hwirq(d);
 
 	raw_spin_lock_irqsave(&pmac_pic_lock, flags);
         __clear_bit(src, ppc_cached_irq_mask);
@@ -180,7 +180,7 @@ static void pmac_mask_irq(struct irq_data *d)
 static void pmac_unmask_irq(struct irq_data *d)
 {
 	unsigned long flags;
-	unsigned int src = irq_map[d->irq].hwirq;
+	unsigned int src = irqd_to_hwirq(d);
 
 	raw_spin_lock_irqsave(&pmac_pic_lock, flags);
 	__set_bit(src, ppc_cached_irq_mask);
@@ -193,7 +193,7 @@ static int pmac_retrigger(struct irq_data *d)
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&pmac_pic_lock, flags);
-	__pmac_retrigger(irq_map[d->irq].hwirq);
+	__pmac_retrigger(irqd_to_hwirq(d));
 	raw_spin_unlock_irqrestore(&pmac_pic_lock, flags);
 	return 1;
 }
diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c
index c55d7ad9c64..164a8eb4592 100644
--- a/arch/powerpc/platforms/pseries/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -122,7 +122,7 @@ static irqreturn_t ras_epow_interrupt(int irq, void *dev_id)
 
 	status = rtas_call(ras_check_exception_token, 6, 1, NULL,
 			   RTAS_VECTOR_EXTERNAL_INTERRUPT,
-			   irq_map[irq].hwirq,
+			   virq_to_hw(irq),
 			   RTAS_EPOW_WARNING | RTAS_POWERMGM_EVENTS,
 			   critical, __pa(&ras_log_buf),
 				rtas_get_error_log_max());
@@ -157,7 +157,7 @@ static irqreturn_t ras_error_interrupt(int irq, void *dev_id)
 
 	status = rtas_call(ras_check_exception_token, 6, 1, NULL,
 			   RTAS_VECTOR_EXTERNAL_INTERRUPT,
-			   irq_map[irq].hwirq,
+			   virq_to_hw(irq),
 			   RTAS_INTERNAL_ERROR, 1 /*Time Critical */,
 			   __pa(&ras_log_buf),
 				rtas_get_error_log_max());
diff --git a/arch/powerpc/sysdev/cpm1.c b/arch/powerpc/sysdev/cpm1.c
index e0bc944eb23..350787c83e2 100644
--- a/arch/powerpc/sysdev/cpm1.c
+++ b/arch/powerpc/sysdev/cpm1.c
@@ -58,21 +58,21 @@ static struct irq_host *cpm_pic_host;
 
 static void cpm_mask_irq(struct irq_data *d)
 {
-	unsigned int cpm_vec = (unsigned int)irq_map[d->irq].hwirq;
+	unsigned int cpm_vec = (unsigned int)irqd_to_hwirq(d);
 
 	clrbits32(&cpic_reg->cpic_cimr, (1 << cpm_vec));
 }
 
 static void cpm_unmask_irq(struct irq_data *d)
 {
-	unsigned int cpm_vec = (unsigned int)irq_map[d->irq].hwirq;
+	unsigned int cpm_vec = (unsigned int)irqd_to_hwirq(d);
 
 	setbits32(&cpic_reg->cpic_cimr, (1 << cpm_vec));
 }
 
 static void cpm_end_irq(struct irq_data *d)
 {
-	unsigned int cpm_vec = (unsigned int)irq_map[d->irq].hwirq;
+	unsigned int cpm_vec = (unsigned int)irqd_to_hwirq(d);
 
 	out_be32(&cpic_reg->cpic_cisr, (1 << cpm_vec));
 }
@@ -157,7 +157,7 @@ unsigned int cpm_pic_init(void)
 		goto end;
 
 	/* Initialize the CPM interrupt controller. */
-	hwirq = (unsigned int)irq_map[sirq].hwirq;
+	hwirq = (unsigned int)virq_to_hw(sirq);
 	out_be32(&cpic_reg->cpic_cicr,
 	    (CICR_SCD_SCC4 | CICR_SCC_SCC3 | CICR_SCB_SCC2 | CICR_SCA_SCC1) |
 		((hwirq/2) << 13) | CICR_HP_MASK);