diff --git a/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c b/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
index fefa7977fa9f..291d61c94718 100644
--- a/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
+++ b/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
@@ -190,8 +190,7 @@ mpc5121_ads_cpld_pic_init(void)
cpld_pic_node = of_node_get(np);
- cpld_pic_host =
- irq_alloc_host(np, IRQ_DOMAIN_MAP_LINEAR, 16, &cpld_pic_host_ops, 16);
+ cpld_pic_host = irq_domain_add_linear(np, 16, &cpld_pic_host_ops, NULL);
if (!cpld_pic_host) {
printk(KERN_ERR "CPLD PIC: failed to allocate irq host!\n");
goto end;
diff --git a/arch/powerpc/platforms/52xx/media5200.c b/arch/powerpc/platforms/52xx/media5200.c
index a746415c4242..5db5cfb6a4ff 100644
--- a/arch/powerpc/platforms/52xx/media5200.c
+++ b/arch/powerpc/platforms/52xx/media5200.c
@@ -173,15 +173,12 @@ static void __init media5200_init_irq(void)
spin_lock_init(&media5200_irq.lock);
- media5200_irq.irqhost = irq_alloc_host(fpga_np, IRQ_DOMAIN_MAP_LINEAR,
- MEDIA5200_NUM_IRQS,
- &media5200_irq_ops, -1);
+ media5200_irq.irqhost = irq_domain_add_linear(fpga_np,
+ MEDIA5200_NUM_IRQS, &media5200_irq_ops, &media5200_irq);
if (!media5200_irq.irqhost)
goto out;
pr_debug("%s: allocated irqhost\n", __func__);
- media5200_irq.irqhost->host_data = &media5200_irq;
-
irq_set_handler_data(cascade_virq, &media5200_irq);
irq_set_chained_handler(cascade_virq, media5200_irq_cascade);
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_gpt.c b/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
index e90af8fd8413..b53275d12727 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
@@ -252,14 +252,12 @@ mpc52xx_gpt_irq_setup(struct mpc52xx_gpt_priv *gpt, struct device_node *node)
if (!cascade_virq)
return;
- gpt->irqhost = irq_alloc_host(node, IRQ_DOMAIN_MAP_LINEAR, 1,
- &mpc52xx_gpt_irq_ops, -1);
+ gpt->irqhost = irq_domain_add_linear(node, 1, &mpc52xx_gpt_irq_ops, gpt);
if (!gpt->irqhost) {
- dev_err(gpt->dev, "irq_alloc_host() failed\n");
+ dev_err(gpt->dev, "irq_domain_add_linear() failed\n");
return;
}
- gpt->irqhost->host_data = gpt;
irq_set_handler_data(cascade_virq, gpt);
irq_set_chained_handler(cascade_virq, mpc52xx_gpt_irq_cascade);
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pic.c b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
index 8c997f1a9122..41fa67126c44 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pic.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
@@ -444,9 +444,9 @@ void __init mpc52xx_init_irq(void)
* As last step, add an irq host to translate the real
* hw irq information provided by the ofw to linux virq
*/
- mpc52xx_irqhost = irq_alloc_host(picnode, IRQ_DOMAIN_MAP_LINEAR,
+ mpc52xx_irqhost = irq_domain_add_linear(picnode,
MPC52xx_IRQ_HIGHTESTHWIRQ,
- &mpc52xx_irqhost_ops, -1);
+ &mpc52xx_irqhost_ops, NULL);
if (!mpc52xx_irqhost)
panic(__FILE__ ": Cannot allocate the IRQ host\n");
diff --git a/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c b/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
index bdba174e7b3a..4ef9d6918e23 100644
--- a/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
+++ b/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
@@ -156,17 +156,13 @@ int __init pq2ads_pci_init_irq(void)
out_be32(&priv->regs->mask, ~0);
mb();
- host = irq_alloc_host(np, IRQ_DOMAIN_MAP_LINEAR, NUM_IRQS,
- &pci_pic_host_ops, NUM_IRQS);
+ host = irq_domain_add_linear(np, NUM_IRQS, &pci_pic_host_ops, priv);
if (!host) {
ret = -ENOMEM;
goto out_unmap_regs;
}
- host->host_data = priv;
-
priv->host = host;
- host->host_data = priv;
irq_set_handler_data(irq, priv);
irq_set_chained_handler(irq, pq2ads_pci_irq_demux);
diff --git a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
index e3ef7c9ed7b1..1092c121adf3 100644
--- a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
+++ b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
@@ -280,9 +280,8 @@ void socrates_fpga_pic_init(struct device_node *pic)
int i;
/* Setup an irq_domain structure */
- socrates_fpga_pic_irq_host = irq_alloc_host(pic, IRQ_DOMAIN_MAP_LINEAR,
- SOCRATES_FPGA_NUM_IRQS, &socrates_fpga_pic_host_ops,
- SOCRATES_FPGA_NUM_IRQS);
+ socrates_fpga_pic_irq_host = irq_domain_add_linear(pic,
+ SOCRATES_FPGA_NUM_IRQS, &socrates_fpga_pic_host_ops, NULL);
if (socrates_fpga_pic_irq_host == NULL) {
pr_err("FPGA PIC: Unable to allocate host\n");
return;
diff --git a/arch/powerpc/platforms/86xx/gef_pic.c b/arch/powerpc/platforms/86xx/gef_pic.c
index 0cf8af230bcf..126a94b530e4 100644
--- a/arch/powerpc/platforms/86xx/gef_pic.c
+++ b/arch/powerpc/platforms/86xx/gef_pic.c
@@ -212,9 +212,8 @@ void __init gef_pic_init(struct device_node *np)
}
/* Setup an irq_domain structure */
- gef_pic_irq_host = irq_alloc_host(np, IRQ_DOMAIN_MAP_LINEAR,
- GEF_PIC_NUM_IRQS,
- &gef_pic_host_ops, NO_IRQ);
+ gef_pic_irq_host = irq_domain_add_linear(np, GEF_PIC_NUM_IRQS,
+ &gef_pic_host_ops, NULL);
if (gef_pic_irq_host == NULL)
return;
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c
index 1bfd18a48a7f..cf9fd3c8a9b9 100644
--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -392,16 +392,13 @@ static int axon_msi_probe(struct platform_device *device)
}
memset(msic->fifo_virt, 0xff, MSIC_FIFO_SIZE_BYTES);
- msic->irq_domain = irq_alloc_host(dn, IRQ_DOMAIN_MAP_NOMAP,
- NR_IRQS, &msic_host_ops, 0);
+ msic->irq_domain = irq_domain_add_nomap(dn, &msic_host_ops, msic);
if (!msic->irq_domain) {
printk(KERN_ERR "axon_msi: couldn't allocate irq_domain for %s\n",
dn->full_name);
goto out_free_fifo;
}
- msic->irq_domain->host_data = msic;
-
irq_set_handler_data(virq, msic);
irq_set_chained_handler(virq, axon_msi_cascade);
pr_devel("axon_msi: irq 0x%x setup for axon_msi\n", virq);
diff --git a/arch/powerpc/platforms/cell/beat_interrupt.c b/arch/powerpc/platforms/cell/beat_interrupt.c
index 21b64cfef5e5..bbdf57440cd5 100644
--- a/arch/powerpc/platforms/cell/beat_interrupt.c
+++ b/arch/powerpc/platforms/cell/beat_interrupt.c
@@ -239,9 +239,7 @@ void __init beatic_init_IRQ(void)
ppc_md.get_irq = beatic_get_irq;
/* Allocate an irq host */
- beatic_host = irq_alloc_host(NULL, IRQ_DOMAIN_MAP_NOMAP, 0,
- &beatic_pic_host_ops,
- 0);
+ beatic_host = irq_domain_add_nomap(NULL, &beatic_pic_host_ops, NULL);
BUG_ON(beatic_host == NULL);
irq_set_default_host(beatic_host);
}
diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c
index 6888475e7c62..c844797a6898 100644
--- a/arch/powerpc/platforms/cell/interrupt.c
+++ b/arch/powerpc/platforms/cell/interrupt.c
@@ -378,8 +378,8 @@ static int __init setup_iic(void)
void __init iic_init_IRQ(void)
{
/* Setup an irq host data structure */
- iic_host = irq_alloc_host(NULL, IRQ_DOMAIN_MAP_LINEAR, IIC_SOURCE_COUNT,
- &iic_host_ops, IIC_IRQ_INVALID);
+ iic_host = irq_domain_add_linear(NULL, IIC_SOURCE_COUNT, &iic_host_ops,
+ NULL);
BUG_ON(iic_host == NULL);
irq_set_default_host(iic_host);
diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c
index 1f935a772ef8..6521d202284a 100644
--- a/arch/powerpc/platforms/cell/spider-pic.c
+++ b/arch/powerpc/platforms/cell/spider-pic.c
@@ -299,12 +299,10 @@ static void __init spider_init_one(struct device_node *of_node, int chip,
panic("spider_pic: can't map registers !");
/* Allocate a host */
- pic->host = irq_alloc_host(of_node, IRQ_DOMAIN_MAP_LINEAR,
- SPIDER_SRC_COUNT, &spider_host_ops,
- SPIDER_IRQ_INVALID);
+ pic->host = irq_domain_add_linear(of_node, SPIDER_SRC_COUNT,
+ &spider_host_ops, pic);
if (pic->host == NULL)
panic("spider_pic: can't allocate irq host !");
- pic->host->host_data = pic;
/* Go through all sources and disable them */
for (i = 0; i < SPIDER_SRC_COUNT; i++) {
diff --git a/arch/powerpc/platforms/embedded6xx/flipper-pic.c b/arch/powerpc/platforms/embedded6xx/flipper-pic.c
index f862361730fb..434597166ca4 100644
--- a/arch/powerpc/platforms/embedded6xx/flipper-pic.c
+++ b/arch/powerpc/platforms/embedded6xx/flipper-pic.c
@@ -159,15 +159,13 @@ struct irq_domain * __init flipper_pic_init(struct device_node *np)
__flipper_quiesce(io_base);
- irq_domain = irq_alloc_host(np, IRQ_DOMAIN_MAP_LINEAR, FLIPPER_NR_IRQS,
- &flipper_irq_domain_ops, -1);
+ irq_domain = irq_domain_add_linear(np, FLIPPER_NR_IRQS,
+ &flipper_irq_domain_ops, io_base);
if (!irq_domain) {
pr_err("failed to allocate irq_domain\n");
return NULL;
}
- irq_domain->host_data = io_base;
-
out:
return irq_domain;
}
diff --git a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
index 2d4a5d48fbbd..499d410b95fa 100644
--- a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
+++ b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
@@ -177,13 +177,12 @@ struct irq_domain *hlwd_pic_init(struct device_node *np)
__hlwd_quiesce(io_base);
- irq_domain = irq_alloc_host(np, IRQ_DOMAIN_MAP_LINEAR, HLWD_NR_IRQS,
- &hlwd_irq_domain_ops, -1);
+ irq_domain = irq_domain_add_linear(np, HLWD_NR_IRQS,
+ &hlwd_irq_domain_ops, io_base);
if (!irq_domain) {
pr_err("failed to allocate irq_domain\n");
return NULL;
}
- irq_domain->host_data = io_base;
return irq_domain;
}
diff --git a/arch/powerpc/platforms/iseries/irq.c b/arch/powerpc/platforms/iseries/irq.c
index b07d4f2e0155..5538b593079d 100644
--- a/arch/powerpc/platforms/iseries/irq.c
+++ b/arch/powerpc/platforms/iseries/irq.c
@@ -380,8 +380,7 @@ void __init iSeries_init_IRQ(void)
/* Create irq host. No need for a revmap since HV will give us
* back our virtual irq number
*/
- host = irq_alloc_host(NULL, IRQ_DOMAIN_MAP_NOMAP, 0,
- &iseries_irq_domain_ops, 0);
+ host = irq_domain_add_nomap(NULL, &iseries_irq_domain_ops, NULL);
BUG_ON(host == NULL);
irq_set_default_host(host);
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index cff326ab8ef2..646fdf3b9c0c 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -352,9 +352,8 @@ static void __init pmac_pic_probe_oldstyle(void)
/*
* Allocate an irq host
*/
- pmac_pic_host = irq_alloc_host(master, IRQ_DOMAIN_MAP_LINEAR, max_irqs,
- &pmac_pic_host_ops,
- max_irqs);
+ pmac_pic_host = irq_domain_add_linear(master, max_irqs,
+ &pmac_pic_host_ops, NULL);
BUG_ON(pmac_pic_host == NULL);
irq_set_default_host(pmac_pic_host);
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index 6b1ef2d4dea0..09afd704f07a 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -192,8 +192,7 @@ static int psurge_secondary_ipi_init(void)
{
int rc = -ENOMEM;
- psurge_host = irq_alloc_host(NULL, IRQ_DOMAIN_MAP_NOMAP, 0,
- &psurge_host_ops, 0);
+ psurge_host = irq_domain_add_nomap(NULL, &psurge_host_ops, NULL);
if (psurge_host)
psurge_secondary_virq = irq_create_direct_mapping(psurge_host);
diff --git a/arch/powerpc/platforms/ps3/interrupt.c b/arch/powerpc/platforms/ps3/interrupt.c
index c5980e422dc6..c05808f21015 100644
--- a/arch/powerpc/platforms/ps3/interrupt.c
+++ b/arch/powerpc/platforms/ps3/interrupt.c
@@ -753,8 +753,7 @@ void __init ps3_init_IRQ(void)
unsigned cpu;
struct irq_domain *host;
- host = irq_alloc_host(NULL, IRQ_DOMAIN_MAP_NOMAP, 0, &ps3_host_ops,
- PS3_INVALID_OUTLET);
+ host = irq_domain_add_nomap(NULL, &ps3_host_ops, NULL);
irq_set_default_host(host);
irq_set_virq_count(PS3_PLUG_MAX + 1);
diff --git a/arch/powerpc/platforms/wsp/opb_pic.c b/arch/powerpc/platforms/wsp/opb_pic.c
index 76b33bc36116..4837515c2826 100644
--- a/arch/powerpc/platforms/wsp/opb_pic.c
+++ b/arch/powerpc/platforms/wsp/opb_pic.c
@@ -263,13 +263,11 @@ struct opb_pic *opb_pic_init_one(struct device_node *dn)
goto free_opb;
}
- /* Allocate an irq host so that Linux knows that despite only
+ /* Allocate an irq domain so that Linux knows that despite only
* having one interrupt to issue, we're the controller for multiple
* hardware IRQs, so later we can lookup their virtual IRQs. */
- opb->host = irq_alloc_host(dn, IRQ_DOMAIN_MAP_LINEAR,
- OPB_NR_IRQS, &opb_host_ops, -1);
-
+ opb->host = irq_domain_add_linear(dn, OPB_NR_IRQS, &opb_host_ops, opb);
if (!opb->host) {
printk(KERN_ERR "opb: Failed to allocate IRQ host!\n");
goto free_regs;
@@ -277,7 +275,6 @@ struct opb_pic *opb_pic_init_one(struct device_node *dn)
opb->index = opb_index++;
spin_lock_init(&opb->lock);
- opb->host->host_data = opb;
/* Disable all interrupts by default */
opb_out(opb, OPB_MLSASIER, 0);
diff --git a/arch/powerpc/sysdev/cpm1.c b/arch/powerpc/sysdev/cpm1.c
index 0877a757c209..53f39dbbfb97 100644
--- a/arch/powerpc/sysdev/cpm1.c
+++ b/arch/powerpc/sysdev/cpm1.c
@@ -164,8 +164,7 @@ unsigned int cpm_pic_init(void)
out_be32(&cpic_reg->cpic_cimr, 0);
- cpm_pic_host = irq_alloc_host(np, IRQ_DOMAIN_MAP_LINEAR,
- 64, &cpm_pic_host_ops, 64);
+ cpm_pic_host = irq_domain_add_linear(np, 64, &cpm_pic_host_ops, NULL);
if (cpm_pic_host == NULL) {
printk(KERN_ERR "CPM2 PIC: failed to allocate irq host!\n");
sirq = NO_IRQ;
diff --git a/arch/powerpc/sysdev/cpm2_pic.c b/arch/powerpc/sysdev/cpm2_pic.c
index b149baae5d33..b3643322c528 100644
--- a/arch/powerpc/sysdev/cpm2_pic.c
+++ b/arch/powerpc/sysdev/cpm2_pic.c
@@ -275,8 +275,7 @@ void cpm2_pic_init(struct device_node *node)
out_be32(&cpm2_intctl->ic_scprrl, 0x05309770);
/* create a legacy host */
- cpm2_pic_host = irq_alloc_host(node, IRQ_DOMAIN_MAP_LINEAR,
- 64, &cpm2_pic_host_ops, 64);
+ cpm2_pic_host = irq_domain_add_linear(node, 64, &cpm2_pic_host_ops, NULL);
if (cpm2_pic_host == NULL) {
printk(KERN_ERR "CPM2 PIC: failed to allocate irq host!\n");
return;
diff --git a/arch/powerpc/sysdev/ehv_pic.c b/arch/powerpc/sysdev/ehv_pic.c
index 48d3ba1220d3..adea322ea18f 100644
--- a/arch/powerpc/sysdev/ehv_pic.c
+++ b/arch/powerpc/sysdev/ehv_pic.c
@@ -275,9 +275,8 @@ void __init ehv_pic_init(void)
return;
}
- ehv_pic->irqhost = irq_alloc_host(np, IRQ_DOMAIN_MAP_LINEAR,
- NR_EHV_PIC_INTS, &ehv_pic_host_ops, 0);
-
+ ehv_pic->irqhost = irq_domain_add_linear(np, NR_EHV_PIC_INTS,
+ &ehv_pic_host_ops, ehv_pic);
if (!ehv_pic->irqhost) {
of_node_put(np);
kfree(ehv_pic);
@@ -293,7 +292,6 @@ void __init ehv_pic_init(void)
of_node_put(np2);
}
- ehv_pic->irqhost->host_data = ehv_pic;
ehv_pic->hc_irq = ehv_pic_irq_chip;
ehv_pic->hc_irq.irq_set_affinity = ehv_pic_set_affinity;
ehv_pic->coreint_flag = coreint_flag;
diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c
index 3f9a301c4550..f4fd95bc1278 100644
--- a/arch/powerpc/sysdev/fsl_msi.c
+++ b/arch/powerpc/sysdev/fsl_msi.c
@@ -387,8 +387,8 @@ static int __devinit fsl_of_msi_probe(struct platform_device *dev)
}
platform_set_drvdata(dev, msi);
- msi->irqhost = irq_alloc_host(dev->dev.of_node, IRQ_DOMAIN_MAP_LINEAR,
- NR_MSI_IRQS, &fsl_msi_host_ops, 0);
+ msi->irqhost = irq_domain_add_linear(dev->dev.of_node,
+ NR_MSI_IRQS, &fsl_msi_host_ops, msi);
if (msi->irqhost == NULL) {
dev_err(&dev->dev, "No memory for MSI irqhost\n");
@@ -420,8 +420,6 @@ static int __devinit fsl_of_msi_probe(struct platform_device *dev)
msi->feature = features->fsl_pic_ip;
- msi->irqhost->host_data = msi;
-
/*
* Remember the phandle, so that we can match with any PCI nodes
* that have an "fsl,msi" property.
diff --git a/arch/powerpc/sysdev/i8259.c b/arch/powerpc/sysdev/i8259.c
index 7e67890b8fc2..573a73bd954a 100644
--- a/arch/powerpc/sysdev/i8259.c
+++ b/arch/powerpc/sysdev/i8259.c
@@ -263,8 +263,7 @@ void i8259_init(struct device_node *node, unsigned long intack_addr)
raw_spin_unlock_irqrestore(&i8259_lock, flags);
/* create a legacy host */
- i8259_host = irq_alloc_host(node, IRQ_DOMAIN_MAP_LEGACY,
- 0, &i8259_host_ops, 0);
+ i8259_host = irq_domain_add_legacy(node, &i8259_host_ops, NULL);
if (i8259_host == NULL) {
printk(KERN_ERR "i8259: failed to allocate irq host !\n");
return;
diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index 9abed3760545..0eaaa01c11b3 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -728,9 +728,8 @@ struct ipic * __init ipic_init(struct device_node *node, unsigned int flags)
if (ipic == NULL)
return NULL;
- ipic->irqhost = irq_alloc_host(node, IRQ_DOMAIN_MAP_LINEAR,
- NR_IPIC_INTS,
- &ipic_host_ops, 0);
+ ipic->irqhost = irq_domain_add_linear(node, NR_IPIC_INTS,
+ &ipic_host_ops, ipic);
if (ipic->irqhost == NULL) {
kfree(ipic);
return NULL;
@@ -738,8 +737,6 @@ struct ipic * __init ipic_init(struct device_node *node, unsigned int flags)
ipic->regs = ioremap(res.start, resource_size(&res));
- ipic->irqhost->host_data = ipic;
-
/* init hw */
ipic_write(ipic->regs, IPIC_SICNR, 0x0);
diff --git a/arch/powerpc/sysdev/mpc8xx_pic.c b/arch/powerpc/sysdev/mpc8xx_pic.c
index 978dfc4c3120..d5f5416be310 100644
--- a/arch/powerpc/sysdev/mpc8xx_pic.c
+++ b/arch/powerpc/sysdev/mpc8xx_pic.c
@@ -171,8 +171,7 @@ int mpc8xx_pic_init(void)
goto out;
}
- mpc8xx_pic_host = irq_alloc_host(np, IRQ_DOMAIN_MAP_LINEAR,
- 64, &mpc8xx_pic_host_ops, 64);
+ mpc8xx_pic_host = irq_domain_add_linear(np, 64, &mpc8xx_pic_host_ops, NULL);
if (mpc8xx_pic_host == NULL) {
printk(KERN_ERR "MPC8xx PIC: failed to allocate irq host!\n");
ret = -ENOMEM;
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index c844d343bf32..c83a512fa175 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -1345,10 +1345,9 @@ struct mpic * __init mpic_alloc(struct device_node *node,
mpic->isu_shift = 1 + __ilog2(mpic->isu_size - 1);
mpic->isu_mask = (1 << mpic->isu_shift) - 1;
- mpic->irqhost = irq_alloc_host(mpic->node, IRQ_DOMAIN_MAP_LINEAR,
+ mpic->irqhost = irq_domain_add_linear(mpic->node,
isu_size ? isu_size : mpic->num_sources,
- &mpic_host_ops,
- flags & MPIC_LARGE_VECTORS ? 2048 : 256);
+ &mpic_host_ops, mpic);
/*
* FIXME: The code leaks the MPIC object and mappings here; this
@@ -1357,8 +1356,6 @@ struct mpic * __init mpic_alloc(struct device_node *node,
if (mpic->irqhost == NULL)
return NULL;
- mpic->irqhost->host_data = mpic;
-
/* Display version */
switch (greg_feature & MPIC_GREG_FEATURE_VERSION_MASK) {
case 1:
diff --git a/arch/powerpc/sysdev/mv64x60_pic.c b/arch/powerpc/sysdev/mv64x60_pic.c
index 45124a1959d0..8848e99a83f2 100644
--- a/arch/powerpc/sysdev/mv64x60_pic.c
+++ b/arch/powerpc/sysdev/mv64x60_pic.c
@@ -250,9 +250,8 @@ void __init mv64x60_init_irq(void)
paddr = of_translate_address(np, reg);
mv64x60_irq_reg_base = ioremap(paddr, reg[1]);
- mv64x60_irq_host = irq_alloc_host(np, IRQ_DOMAIN_MAP_LINEAR,
- MV64x60_NUM_IRQS,
- &mv64x60_host_ops, MV64x60_NUM_IRQS);
+ mv64x60_irq_host = irq_domain_add_linear(np, MV64x60_NUM_IRQS,
+ &mv64x60_host_ops, NULL);
spin_lock_irqsave(&mv64x60_lock, flags);
out_le32(mv64x60_gpp_reg_base + MV64x60_GPP_INTR_MASK,
diff --git a/arch/powerpc/sysdev/qe_lib/qe_ic.c b/arch/powerpc/sysdev/qe_lib/qe_ic.c
index 78e90192c343..e9b3d5cc65d3 100644
--- a/arch/powerpc/sysdev/qe_lib/qe_ic.c
+++ b/arch/powerpc/sysdev/qe_lib/qe_ic.c
@@ -339,8 +339,8 @@ void __init qe_ic_init(struct device_node *node, unsigned int flags,
if (qe_ic == NULL)
return;
- qe_ic->irqhost = irq_alloc_host(node, IRQ_DOMAIN_MAP_LINEAR,
- NR_QE_IC_INTS, &qe_ic_host_ops, 0);
+ qe_ic->irqhost = irq_domain_add_linear(node, NR_QE_IC_INTS,
+ &qe_ic_host_ops, qe_ic);
if (qe_ic->irqhost == NULL) {
kfree(qe_ic);
return;
@@ -348,7 +348,6 @@ void __init qe_ic_init(struct device_node *node, unsigned int flags,
qe_ic->regs = ioremap(res.start, resource_size(&res));
- qe_ic->irqhost->host_data = qe_ic;
qe_ic->hc_irq = qe_ic_irq_chip;
qe_ic->virq_high = irq_of_parse_and_map(node, 0);
diff --git a/arch/powerpc/sysdev/tsi108_pci.c b/arch/powerpc/sysdev/tsi108_pci.c
index f3757236e666..1be26f4b9c96 100644
--- a/arch/powerpc/sysdev/tsi108_pci.c
+++ b/arch/powerpc/sysdev/tsi108_pci.c
@@ -419,8 +419,7 @@ void __init tsi108_pci_int_init(struct device_node *node)
{
DBG("Tsi108_pci_int_init: initializing PCI interrupts\n");
- pci_irq_host = irq_alloc_host(node, IRQ_DOMAIN_MAP_LEGACY,
- 0, &pci_irq_domain_ops, 0);
+ pci_irq_host = irq_domain_add_legacy(node, &pci_irq_domain_ops, NULL);
if (pci_irq_host == NULL) {
printk(KERN_ERR "pci_irq_host: failed to allocate irq domain!\n");
return;
diff --git a/arch/powerpc/sysdev/uic.c b/arch/powerpc/sysdev/uic.c
index 7eea3a64bdf7..84e59c97391f 100644
--- a/arch/powerpc/sysdev/uic.c
+++ b/arch/powerpc/sysdev/uic.c
@@ -270,13 +270,11 @@ static struct uic * __init uic_init_one(struct device_node *node)
}
uic->dcrbase = *dcrreg;
- uic->irqhost = irq_alloc_host(node, IRQ_DOMAIN_MAP_LINEAR,
- NR_UIC_INTS, &uic_host_ops, -1);
+ uic->irqhost = irq_domain_add_linear(node, NR_UIC_INTS, &uic_host_ops,
+ uic);
if (! uic->irqhost)
return NULL; /* FIXME: panic? */
- uic->irqhost->host_data = uic;
-
/* Start with all interrupts disabled, level and non-critical */
mtdcr(uic->dcrbase + UIC_ER, 0);
mtdcr(uic->dcrbase + UIC_CR, 0);
diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev/xics/xics-common.c
index fb2e303d25fb..ea5e204e3450 100644
--- a/arch/powerpc/sysdev/xics/xics-common.c
+++ b/arch/powerpc/sysdev/xics/xics-common.c
@@ -374,8 +374,7 @@ static struct irq_domain_ops xics_host_ops = {
static void __init xics_init_host(void)
{
- xics_host = irq_alloc_host(NULL, IRQ_DOMAIN_MAP_TREE, 0, &xics_host_ops,
- XICS_IRQ_SPURIOUS);
+ xics_host = irq_domain_add_tree(NULL, &xics_host_ops, NULL);
BUG_ON(xics_host == NULL);
irq_set_default_host(xics_host);
}
diff --git a/arch/powerpc/sysdev/xilinx_intc.c b/arch/powerpc/sysdev/xilinx_intc.c
index 92e7d4db9fde..8d73c3c0bee6 100644
--- a/arch/powerpc/sysdev/xilinx_intc.c
+++ b/arch/powerpc/sysdev/xilinx_intc.c
@@ -201,11 +201,10 @@ xilinx_intc_init(struct device_node *np)
out_be32(regs + XINTC_MER, 0x3UL); /* Turn on the Master Enable. */
/* Allocate and initialize an irq_domain structure. */
- irq = irq_alloc_host(np, IRQ_DOMAIN_MAP_LINEAR, XILINX_INTC_MAXIRQS,
- &xilinx_intc_ops, -1);
+ irq = irq_domain_add_linear(np, XILINX_INTC_MAXIRQS, &xilinx_intc_ops,
+ regs);
if (!irq)
panic(__FILE__ ": Cannot allocate IRQ host\n");
- irq->host_data = regs;
return irq;
}
diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index 9efd59732eeb..149d9876fca8 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -364,9 +364,8 @@ static void __init mpc8xxx_add_controller(struct device_node *np)
if (hwirq == NO_IRQ)
goto skip_irq;
- mpc8xxx_gc->irq =
- irq_alloc_host(np, IRQ_DOMAIN_MAP_LINEAR, MPC8XXX_GPIO_PINS,
- &mpc8xxx_gpio_irq_ops, MPC8XXX_GPIO_PINS);
+ mpc8xxx_gc->irq = irq_domain_add_linear(np, MPC8XXX_GPIO_PINS,
+ &mpc8xxx_gpio_irq_ops, mpc8xxx_gc);
if (!mpc8xxx_gc->irq)
goto skip_irq;
@@ -374,8 +373,6 @@ static void __init mpc8xxx_add_controller(struct device_node *np)
if (id)
mpc8xxx_gc->of_dev_id_data = id->data;
- mpc8xxx_gc->irq->host_data = mpc8xxx_gc;
-
/* ack and mask all irqs */
out_be32(mm_gc->regs + GPIO_IER, 0xffffffff);
out_be32(mm_gc->regs + GPIO_IMR, 0);
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 18f4ab002d2e..f95553fa6872 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -95,10 +95,6 @@ struct irq_domain {
/* type of reverse mapping_technique */
unsigned int revmap_type;
-#define IRQ_DOMAIN_MAP_LEGACY 0 /* legacy 8259, gets irqs 1..15 */
-#define IRQ_DOMAIN_MAP_NOMAP 1 /* no fast reverse mapping */
-#define IRQ_DOMAIN_MAP_LINEAR 2 /* linear map of interrupts */
-#define IRQ_DOMAIN_MAP_TREE 3 /* radix tree */
union {
struct {
unsigned int size;
@@ -120,11 +116,21 @@ struct irq_domain {
#ifdef CONFIG_IRQ_DOMAIN
#ifdef CONFIG_PPC
-extern struct irq_domain *irq_alloc_host(struct device_node *of_node,
- unsigned int revmap_type,
- unsigned int revmap_arg,
- struct irq_domain_ops *ops,
- irq_hw_number_t inval_irq);
+struct irq_domain *irq_domain_add_legacy(struct device_node *of_node,
+ struct irq_domain_ops *ops,
+ void *host_data);
+struct irq_domain *irq_domain_add_linear(struct device_node *of_node,
+ unsigned int size,
+ struct irq_domain_ops *ops,
+ void *host_data);
+struct irq_domain *irq_domain_add_nomap(struct device_node *of_node,
+ struct irq_domain_ops *ops,
+ void *host_data);
+struct irq_domain *irq_domain_add_tree(struct device_node *of_node,
+ struct irq_domain_ops *ops,
+ void *host_data);
+
+
extern struct irq_domain *irq_find_host(struct device_node *node);
extern void irq_set_default_host(struct irq_domain *host);
extern void irq_set_virq_count(unsigned int count);
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 432d292b33f8..acedba1a2651 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -13,6 +13,11 @@
#include <linux/smp.h>
#include <linux/fs.h>
+#define IRQ_DOMAIN_MAP_LEGACY 0 /* legacy 8259, gets irqs 1..15 */
+#define IRQ_DOMAIN_MAP_NOMAP 1 /* no fast reverse mapping */
+#define IRQ_DOMAIN_MAP_LINEAR 2 /* linear map of interrupts */
+#define IRQ_DOMAIN_MAP_TREE 3 /* radix tree */
+
static LIST_HEAD(irq_domain_list);
static DEFINE_MUTEX(irq_domain_mutex);
@@ -27,100 +32,158 @@ static int default_irq_domain_match(struct irq_domain *d, struct device_node *np
}
/**
- * irq_alloc_host() - Allocate a new irq_domain data structure
+ * irq_domain_alloc() - Allocate a new irq_domain data structure
* @of_node: optional device-tree node of the interrupt controller
* @revmap_type: type of reverse mapping to use
- * @revmap_arg: for IRQ_DOMAIN_MAP_LINEAR linear only: size of the map
* @ops: map/unmap domain callbacks
- * @inval_irq: provide a hw number in that domain space that is always invalid
+ * @host_data: Controller private data pointer
*
- * Allocates and initialize and irq_domain structure. Note that in the case of
- * IRQ_DOMAIN_MAP_LEGACY, the map() callback will be called before this returns
- * for all legacy interrupts except 0 (which is always the invalid irq for
- * a legacy controller). For a IRQ_DOMAIN_MAP_LINEAR, the map is allocated by
- * this call as well. For a IRQ_DOMAIN_MAP_TREE, the radix tree will be
- * allocated later during boot automatically (the reverse mapping will use the
- * slow path until that happens).
+ * Allocates and initialize and irq_domain structure. Caller is expected to
+ * register allocated irq_domain with irq_domain_register(). Returns pointer
+ * to IRQ domain, or NULL on failure.
*/
-struct irq_domain *irq_alloc_host(struct device_node *of_node,
- unsigned int revmap_type,
- unsigned int revmap_arg,
- struct irq_domain_ops *ops,
- irq_hw_number_t inval_irq)
+static struct irq_domain *irq_domain_alloc(struct device_node *of_node,
+ unsigned int revmap_type,
+ struct irq_domain_ops *ops,
+ void *host_data)
{
- struct irq_domain *domain, *h;
- unsigned int size = sizeof(struct irq_domain);
- unsigned int i;
- unsigned int *rmap;
+ struct irq_domain *domain;
- /* Allocate structure and revmap table if using linear mapping */
- if (revmap_type == IRQ_DOMAIN_MAP_LINEAR)
- size += revmap_arg * sizeof(unsigned int);
- domain = kzalloc(size, GFP_KERNEL);
- if (domain == NULL)
+ domain = kzalloc(sizeof(*domain), GFP_KERNEL);
+ if (WARN_ON(!domain))
return NULL;
/* Fill structure */
domain->revmap_type = revmap_type;
- domain->inval_irq = inval_irq;
domain->ops = ops;
+ domain->host_data = host_data;
domain->of_node = of_node_get(of_node);
if (domain->ops->match == NULL)
domain->ops->match = default_irq_domain_match;
+ return domain;
+}
+
+static void irq_domain_add(struct irq_domain *domain)
+{
+ mutex_lock(&irq_domain_mutex);
+ list_add(&domain->link, &irq_domain_list);
+ mutex_unlock(&irq_domain_mutex);
+ pr_debug("irq: Allocated domain of type %d @0x%p\n",
+ domain->revmap_type, domain);
+}
+
+/**
+ * irq_domain_add_legacy() - Allocate and register a legacy revmap irq_domain.
+ * @of_node: pointer to interrupt controller's device tree node.
+ * @ops: map/unmap domain callbacks
+ * @host_data: Controller private data pointer
+ *
+ * Note: the map() callback will be called before this function returns
+ * for all legacy interrupts except 0 (which is always the invalid irq for
+ * a legacy controller).
+ */
+struct irq_domain *irq_domain_add_legacy(struct device_node *of_node,
+ struct irq_domain_ops *ops,
+ void *host_data)
+{
+ struct irq_domain *domain, *h;
+ unsigned int i;
+
+ domain = irq_domain_alloc(of_node, IRQ_DOMAIN_MAP_LEGACY, ops, host_data);
+ if (!domain)
+ return NULL;
+
mutex_lock(&irq_domain_mutex);
/* Make sure only one legacy controller can be created */
- if (revmap_type == IRQ_DOMAIN_MAP_LEGACY) {
- list_for_each_entry(h, &irq_domain_list, link) {
- if (WARN_ON(h->revmap_type == IRQ_DOMAIN_MAP_LEGACY)) {
- mutex_unlock(&irq_domain_mutex);
- of_node_put(domain->of_node);
- kfree(domain);
- return NULL;
- }
+ list_for_each_entry(h, &irq_domain_list, link) {
+ if (WARN_ON(h->revmap_type == IRQ_DOMAIN_MAP_LEGACY)) {
+ mutex_unlock(&irq_domain_mutex);
+ of_node_put(domain->of_node);
+ kfree(domain);
+ return NULL;
}
}
list_add(&domain->link, &irq_domain_list);
mutex_unlock(&irq_domain_mutex);
- /* Additional setups per revmap type */
- switch(revmap_type) {
- case IRQ_DOMAIN_MAP_LEGACY:
- /* 0 is always the invalid number for legacy */
- domain->inval_irq = 0;
- /* setup us as the domain for all legacy interrupts */
- for (i = 1; i < NUM_ISA_INTERRUPTS; i++) {
- struct irq_data *irq_data = irq_get_irq_data(i);
- irq_data->hwirq = i;
- irq_data->domain = domain;
+ /* setup us as the domain for all legacy interrupts */
+ for (i = 1; i < NUM_ISA_INTERRUPTS; i++) {
+ struct irq_data *irq_data = irq_get_irq_data(i);
+ irq_data->hwirq = i;
+ irq_data->domain = domain;
- /* Legacy flags are left to default at this point,
- * one can then use irq_create_mapping() to
- * explicitly change them
- */
- ops->map(domain, i, i);
+ /* Legacy flags are left to default at this point,
+ * one can then use irq_create_mapping() to
+ * explicitly change them
+ */
+ ops->map(domain, i, i);
- /* Clear norequest flags */
- irq_clear_status_flags(i, IRQ_NOREQUEST);
- }
- break;
- case IRQ_DOMAIN_MAP_LINEAR:
- rmap = (unsigned int *)(domain + 1);
- for (i = 0; i < revmap_arg; i++)
- rmap[i] = 0;
- domain->revmap_data.linear.size = revmap_arg;
- domain->revmap_data.linear.revmap = rmap;
- break;
- case IRQ_DOMAIN_MAP_TREE:
- INIT_RADIX_TREE(&domain->revmap_data.tree, GFP_KERNEL);
- break;
- default:
- break;
+ /* Clear norequest flags */
+ irq_clear_status_flags(i, IRQ_NOREQUEST);
}
+ return domain;
+}
- pr_debug("irq: Allocated domain of type %d @0x%p\n", revmap_type, domain);
+/**
+ * irq_domain_add_linear() - Allocate and register a legacy revmap irq_domain.
+ * @of_node: pointer to interrupt controller's device tree node.
+ * @ops: map/unmap domain callbacks
+ * @host_data: Controller private data pointer
+ */
+struct irq_domain *irq_domain_add_linear(struct device_node *of_node,
+ unsigned int size,
+ struct irq_domain_ops *ops,
+ void *host_data)
+{
+ struct irq_domain *domain;
+ unsigned int *revmap;
+ revmap = kzalloc(sizeof(*revmap) * size, GFP_KERNEL);
+ if (WARN_ON(!revmap))
+ return NULL;
+
+ domain = irq_domain_alloc(of_node, IRQ_DOMAIN_MAP_LINEAR, ops, host_data);
+ if (!domain) {
+ kfree(revmap);
+ return NULL;
+ }
+ domain->revmap_data.linear.size = size;
+ domain->revmap_data.linear.revmap = revmap;
+ irq_domain_add(domain);
+ return domain;
+}
+
+struct irq_domain *irq_domain_add_nomap(struct device_node *of_node,
+ struct irq_domain_ops *ops,
+ void *host_data)
+{
+ struct irq_domain *domain = irq_domain_alloc(of_node,
+ IRQ_DOMAIN_MAP_NOMAP, ops, host_data);
+ if (domain)
+ irq_domain_add(domain);
+ return domain;
+}
+
+/**
+ * irq_domain_add_tree()
+ * @of_node: pointer to interrupt controller's device tree node.
+ * @ops: map/unmap domain callbacks
+ *
+ * Note: The radix tree will be allocated later during boot automatically
+ * (the reverse mapping will use the slow path until that happens).
+ */
+struct irq_domain *irq_domain_add_tree(struct device_node *of_node,
+ struct irq_domain_ops *ops,
+ void *host_data)
+{
+ struct irq_domain *domain = irq_domain_alloc(of_node,
+ IRQ_DOMAIN_MAP_TREE, ops, host_data);
+ if (domain) {
+ INIT_RADIX_TREE(&domain->revmap_data.tree, GFP_KERNEL);
+ irq_domain_add(domain);
+ }
return domain;
}
@@ -393,9 +456,6 @@ void irq_dispose_mapping(unsigned int virq)
break;
}
- /* Destroy map */
- irq_data->hwirq = domain->inval_irq;
-
irq_free_desc(virq);
}
EXPORT_SYMBOL_GPL(irq_dispose_mapping);