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irqchip updates for Linux 5.9

Browse Source 
- Add infrastructure to allow DT irqchip platform drivers to
   be built as modules
 - Allow qcom-pdc, mtk-cirq and mtk-sysirq to be built as module
 - Fix ACPI probing to avoid abusing function pointer casting
 - Allow bcm7120-l2 and brcmstb-l2 to be used as wake-up sources
 - Teach NXP's IMX INTMUX some power management
 - Allow stm32-exti to be used as a hierarchical irqchip
 - Let stm32-exti use the hw spinlock API in its full glory
 - A couple of GICv4.1 fixes
 - Tons of cleanups (mtk-sysirq, aic5, bcm7038-l1, imx-intmux,
   brcmstb-l2, ativic32, ti-sci-inta, lonsoon, MIPS GIC, GICv3)
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Merge tag 'irqchip-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Pull irqchip updates from Marc Zyngier:

 - Add infrastructure to allow DT irqchip platform drivers to
   be built as modules
 - Allow qcom-pdc, mtk-cirq and mtk-sysirq to be built as module
 - Fix ACPI probing to avoid abusing function pointer casting
 - Allow bcm7120-l2 and brcmstb-l2 to be used as wake-up sources
 - Teach NXP's IMX INTMUX some power management
 - Allow stm32-exti to be used as a hierarchical irqchip
 - Let stm32-exti use the hw spinlock API in its full glory
 - A couple of GICv4.1 fixes
 - Tons of cleanups (mtk-sysirq, aic5, bcm7038-l1, imx-intmux,
   brcmstb-l2, ativic32, ti-sci-inta, lonsoon, MIPS GIC, GICv3)
This commit is contained in:
Thomas Gleixner 2020-08-03 14:33:23 +02:00
commit 3d5128c1de
32 changed files with 346 additions and 210 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
Documentation/devicetree/bindings/interrupt-controller/brcm,l2-intc.txt
View File

@ -2,7 +2,10 @@ Broadcom Generic Level 2 Interrupt Controller
Required properties:
- compatible: should be "brcm,l2-intc" for latched interrupt controllers
- compatible: should be one of:
"brcm,hif-spi-l2-intc" or
"brcm,upg-aux-aon-l2-intc" or
"brcm,l2-intc" for latched interrupt controllers
should be "brcm,bcm7271-l2-intc" for level interrupt controllers
- reg: specifies the base physical address and size of the registers
- interrupt-controller: identifies the node as an interrupt controller

4
Documentation/devicetree/bindings/interrupt-controller/loongson,htvec.yaml
View File

@ -22,8 +22,8 @@ properties:
interrupts:
minItems: 1
maxItems: 4
description: Four parent interrupts that receive chained interrupts.
maxItems: 8
description: Eight parent interrupts that receive chained interrupts.
interrupt-controller: true

3
drivers/irqchip/Kconfig
View File

@ -425,7 +425,7 @@ config GOLDFISH_PIC
for Goldfish based virtual platforms.
config QCOM_PDC
bool "QCOM PDC"
tristate "QCOM PDC"
depends on ARCH_QCOM
select IRQ_DOMAIN_HIERARCHY
help
@ -541,7 +541,6 @@ config LOONGSON_HTPIC
default y
select IRQ_DOMAIN
select GENERIC_IRQ_CHIP
select I8259
help
Support for the Loongson-3 HyperTransport PIC Controller.

2
drivers/irqchip/irq-ativic32.c
View File

@ -92,7 +92,7 @@ static int ativic32_irq_domain_map(struct irq_domain *id, unsigned int virq,
return 0;
}
static struct irq_domain_ops ativic32_ops = {
static const struct irq_domain_ops ativic32_ops = {
.map = ativic32_irq_domain_map,
.xlate = irq_domain_xlate_onecell
};

8
drivers/irqchip/irq-atmel-aic5.c
View File

@ -310,10 +310,16 @@ static void __init sama5d3_aic_irq_fixup(void)
aic_common_rtc_irq_fixup();
}
static void __init sam9x60_aic_irq_fixup(void)
{
aic_common_rtc_irq_fixup();
aic_common_rtt_irq_fixup();
}
static const struct of_device_id aic5_irq_fixups[] __initconst = {
{ .compatible = "atmel,sama5d3", .data = sama5d3_aic_irq_fixup },
{ .compatible = "atmel,sama5d4", .data = sama5d3_aic_irq_fixup },
{ .compatible = "microchip,sam9x60", .data = sama5d3_aic_irq_fixup },
{ .compatible = "microchip,sam9x60", .data = sam9x60_aic_irq_fixup },
{ /* sentinel */ },
};

11
drivers/irqchip/irq-bcm7038-l1.c
View File

@ -28,6 +28,9 @@
#include <linux/irqchip.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/syscore_ops.h>
#ifdef CONFIG_ARM
#include <asm/smp_plat.h>
#endif
#define IRQS_PER_WORD 32
#define REG_BYTES_PER_IRQ_WORD (sizeof(u32) * 4)
@ -327,7 +330,11 @@ static int bcm7038_l1_suspend(void)
u32 val;
/* Wakeup interrupt should only come from the boot cpu */
#ifdef CONFIG_SMP
boot_cpu = cpu_logical_map(0);
#else
boot_cpu = 0;
#endif
list_for_each_entry(intc, &bcm7038_l1_intcs_list, list) {
for (word = 0; word < intc->n_words; word++) {
@ -347,7 +354,11 @@ static void bcm7038_l1_resume(void)
struct bcm7038_l1_chip *intc;
int boot_cpu, word;
#ifdef CONFIG_SMP
boot_cpu = cpu_logical_map(0);
#else
boot_cpu = 0;
#endif
list_for_each_entry(intc, &bcm7038_l1_intcs_list, list) {
for (word = 0; word < intc->n_words; word++) {

8
drivers/irqchip/irq-bcm7120-l2.c
View File

@ -143,6 +143,9 @@ static int bcm7120_l2_intc_init_one(struct device_node *dn,
irq_set_chained_handler_and_data(parent_irq,
bcm7120_l2_intc_irq_handle, l1_data);
if (data->can_wake)
enable_irq_wake(parent_irq);
return 0;
}
@ -247,6 +250,8 @@ static int __init bcm7120_l2_intc_probe(struct device_node *dn,
if (ret < 0)
goto out_free_l1_data;
data->can_wake = of_property_read_bool(dn, "brcm,irq-can-wake");
for (irq = 0; irq < data->num_parent_irqs; irq++) {
ret = bcm7120_l2_intc_init_one(dn, data, irq, valid_mask);
if (ret)
@ -274,9 +279,6 @@ static int __init bcm7120_l2_intc_probe(struct device_node *dn,
goto out_free_domain;
}
if (of_property_read_bool(dn, "brcm,irq-can-wake"))
data->can_wake = true;
for (idx = 0; idx < data->n_words; idx++) {
irq = idx * IRQS_PER_WORD;
gc = irq_get_domain_generic_chip(data->domain, irq);

5
drivers/irqchip/irq-brcmstb-l2.c
View File

@ -254,6 +254,7 @@ static int __init brcmstb_l2_intc_of_init(struct device_node *np,
*/
data->gc->wake_enabled = 0xffffffff;
ct->chip.irq_set_wake = irq_gc_set_wake;
enable_irq_wake(parent_irq);
}
pr_info("registered L2 intc (%pOF, parent irq: %d)\n", np, parent_irq);
@ -275,6 +276,10 @@ static int __init brcmstb_l2_edge_intc_of_init(struct device_node *np,
return brcmstb_l2_intc_of_init(np, parent, &l2_edge_intc_init);
}
IRQCHIP_DECLARE(brcmstb_l2_intc, "brcm,l2-intc", brcmstb_l2_edge_intc_of_init);
IRQCHIP_DECLARE(brcmstb_hif_spi_l2_intc, "brcm,hif-spi-l2-intc",
brcmstb_l2_edge_intc_of_init);
IRQCHIP_DECLARE(brcmstb_upg_aux_aon_l2_intc, "brcm,upg-aux-aon-l2-intc",
brcmstb_l2_edge_intc_of_init);
static int __init brcmstb_l2_lvl_intc_of_init(struct device_node *np,
struct device_node *parent)

14
drivers/irqchip/irq-gic-v3-its.c
View File

@ -2814,7 +2814,7 @@ static int allocate_vpe_l1_table(void)
if (val & GICR_VPROPBASER_4_1_VALID)
goto out;
gic_data_rdist()->vpe_table_mask = kzalloc(sizeof(cpumask_t), GFP_KERNEL);
gic_data_rdist()->vpe_table_mask = kzalloc(sizeof(cpumask_t), GFP_ATOMIC);
if (!gic_data_rdist()->vpe_table_mask)
return -ENOMEM;
@ -2881,7 +2881,7 @@ static int allocate_vpe_l1_table(void)
pr_debug("np = %d, npg = %lld, psz = %d, epp = %d, esz = %d\n",
np, npg, psz, epp, esz);
page = alloc_pages(GFP_KERNEL | __GFP_ZERO, get_order(np * PAGE_SIZE));
page = alloc_pages(GFP_ATOMIC | __GFP_ZERO, get_order(np * PAGE_SIZE));
if (!page)
return -ENOMEM;
@ -4079,18 +4079,22 @@ static void its_vpe_4_1_deschedule(struct its_vpe *vpe,
static void its_vpe_4_1_invall(struct its_vpe *vpe)
{
void __iomem *rdbase;
unsigned long flags;
u64 val;
int cpu;
val = GICR_INVALLR_V;
val |= FIELD_PREP(GICR_INVALLR_VPEID, vpe->vpe_id);
/* Target the redistributor this vPE is currently known on */
raw_spin_lock(&gic_data_rdist_cpu(vpe->col_idx)->rd_lock);
rdbase = per_cpu_ptr(gic_rdists->rdist, vpe->col_idx)->rd_base;
cpu = vpe_to_cpuid_lock(vpe, &flags);
raw_spin_lock(&gic_data_rdist_cpu(cpu)->rd_lock);
rdbase = per_cpu_ptr(gic_rdists->rdist, cpu)->rd_base;
gic_write_lpir(val, rdbase + GICR_INVALLR);
wait_for_syncr(rdbase);
raw_spin_unlock(&gic_data_rdist_cpu(vpe->col_idx)->rd_lock);
raw_spin_unlock(&gic_data_rdist_cpu(cpu)->rd_lock);
vpe_to_cpuid_unlock(vpe, flags);
}
static int its_vpe_4_1_set_vcpu_affinity(struct irq_data *d, void *vcpu_info)

2
drivers/irqchip/irq-gic-v3.c
View File

@ -2116,7 +2116,7 @@ static void __init gic_acpi_setup_kvm_info(void)
}
static int __init
gic_acpi_init(struct acpi_subtable_header *header, const unsigned long end)
gic_acpi_init(union acpi_subtable_headers *header, const unsigned long end)
{
struct acpi_madt_generic_distributor *dist;
struct fwnode_handle *domain_handle;

2
drivers/irqchip/irq-gic.c
View File

@ -1592,7 +1592,7 @@ static void __init gic_acpi_setup_kvm_info(void)
gic_set_kvm_info(&gic_v2_kvm_info);
}
static int __init gic_v2_acpi_init(struct acpi_subtable_header *header,
static int __init gic_v2_acpi_init(union acpi_subtable_headers *header,
const unsigned long end)
{
struct acpi_madt_generic_distributor *dist;

70
drivers/irqchip/irq-imx-intmux.c
View File

@ -53,6 +53,7 @@
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/spinlock.h>
#include <linux/pm_runtime.h>
#define CHANIER(n) (0x10 + (0x40 * n))
#define CHANIPR(n) (0x20 + (0x40 * n))
@ -60,6 +61,8 @@
#define CHAN_MAX_NUM 0x8
struct intmux_irqchip_data {
struct irq_chip chip;
u32 saved_reg;
int chanidx;
int irq;
struct irq_domain *domain;
@ -120,8 +123,10 @@ static struct irq_chip imx_intmux_irq_chip = {
static int imx_intmux_irq_map(struct irq_domain *h, unsigned int irq,
irq_hw_number_t hwirq)
{
irq_set_chip_data(irq, h->host_data);
irq_set_chip_and_handler(irq, &imx_intmux_irq_chip, handle_level_irq);
struct intmux_irqchip_data *data = h->host_data;
irq_set_chip_data(irq, data);
irq_set_chip_and_handler(irq, &data->chip, handle_level_irq);
return 0;
}
@ -210,8 +215,7 @@ static int imx_intmux_probe(struct platform_device *pdev)
return -EINVAL;
}
data = devm_kzalloc(&pdev->dev, sizeof(*data) +
channum * sizeof(data->irqchip_data[0]), GFP_KERNEL);
data = devm_kzalloc(&pdev->dev, struct_size(data, irqchip_data, channum), GFP_KERNEL);
if (!data)
return -ENOMEM;
@ -232,6 +236,10 @@ static int imx_intmux_probe(struct platform_device *pdev)
data->channum = channum;
raw_spin_lock_init(&data->lock);
pm_runtime_get_noresume(&pdev->dev);
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
ret = clk_prepare_enable(data->ipg_clk);
if (ret) {
dev_err(&pdev->dev, "failed to enable ipg clk: %d\n", ret);
@ -239,6 +247,8 @@ static int imx_intmux_probe(struct platform_device *pdev)
}
for (i = 0; i < channum; i++) {
data->irqchip_data[i].chip = imx_intmux_irq_chip;
data->irqchip_data[i].chip.parent_device = &pdev->dev;
data->irqchip_data[i].chanidx = i;
data->irqchip_data[i].irq = irq_of_parse_and_map(np, i);
@ -267,6 +277,12 @@ static int imx_intmux_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, data);
/*
* Let pm_runtime_put() disable clock.
* If CONFIG_PM is not enabled, the clock will stay powered.
*/
pm_runtime_put(&pdev->dev);
return 0;
out:
clk_disable_unprepare(data->ipg_clk);
@ -288,11 +304,56 @@ static int imx_intmux_remove(struct platform_device *pdev)
irq_domain_remove(data->irqchip_data[i].domain);
}
pm_runtime_disable(&pdev->dev);
return 0;
}
#ifdef CONFIG_PM
static int imx_intmux_runtime_suspend(struct device *dev)
{
struct intmux_data *data = dev_get_drvdata(dev);
struct intmux_irqchip_data *irqchip_data;
int i;
for (i = 0; i < data->channum; i++) {
irqchip_data = &data->irqchip_data[i];
irqchip_data->saved_reg = readl_relaxed(data->regs + CHANIER(i));
}
clk_disable_unprepare(data->ipg_clk);
return 0;
}
static int imx_intmux_runtime_resume(struct device *dev)
{
struct intmux_data *data = dev_get_drvdata(dev);
struct intmux_irqchip_data *irqchip_data;
int ret, i;
ret = clk_prepare_enable(data->ipg_clk);
if (ret) {
dev_err(dev, "failed to enable ipg clk: %d\n", ret);
return ret;
}
for (i = 0; i < data->channum; i++) {
irqchip_data = &data->irqchip_data[i];
writel_relaxed(irqchip_data->saved_reg, data->regs + CHANIER(i));
}
return 0;
}
#endif
static const struct dev_pm_ops imx_intmux_pm_ops = {
SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
pm_runtime_force_resume)
SET_RUNTIME_PM_OPS(imx_intmux_runtime_suspend,
imx_intmux_runtime_resume, NULL)
};
static const struct of_device_id imx_intmux_id[] = {
{ .compatible = "fsl,imx-intmux", },
{ /* sentinel */ },
@ -302,6 +363,7 @@ static struct platform_driver imx_intmux_driver = {
.driver = {
.name = "imx-intmux",
.of_match_table = imx_intmux_id,
.pm = &imx_intmux_pm_ops,
},
.probe = imx_intmux_probe,
.remove = imx_intmux_remove,

6
drivers/irqchip/irq-loongson-htpic.c
View File

@ -93,10 +93,8 @@ int __init htpic_of_init(struct device_node *node, struct device_node *parent)
}
htpic = kzalloc(sizeof(*htpic), GFP_KERNEL);
if (!htpic) {
err = -ENOMEM;
goto out_free;
}
if (!htpic)
return -ENOMEM;
htpic->base = of_iomap(node, 0);
if (!htpic->base) {

32
drivers/irqchip/irq-loongson-htvec.c
View File

@ -19,15 +19,14 @@
/* Registers */
#define HTVEC_EN_OFF 0x20
#define HTVEC_MAX_PARENT_IRQ 4
#define HTVEC_MAX_PARENT_IRQ 8
#define VEC_COUNT_PER_REG 32
#define VEC_REG_COUNT 4
#define VEC_COUNT (VEC_COUNT_PER_REG * VEC_REG_COUNT)
#define VEC_REG_IDX(irq_id) ((irq_id) / VEC_COUNT_PER_REG)
#define VEC_REG_BIT(irq_id) ((irq_id) % VEC_COUNT_PER_REG)
struct htvec {
int num_parents;
void __iomem *base;
struct irq_domain *htvec_domain;
raw_spinlock_t htvec_lock;
@ -43,7 +42,7 @@ static void htvec_irq_dispatch(struct irq_desc *desc)
chained_irq_enter(chip, desc);
for (i = 0; i < VEC_REG_COUNT; i++) {
for (i = 0; i < priv->num_parents; i++) {
pending = readl(priv->base + 4 * i);
while (pending) {
int bit = __ffs(pending);
@ -109,11 +108,14 @@ static struct irq_chip htvec_irq_chip = {
static int htvec_domain_alloc(struct irq_domain *domain, unsigned int virq,
unsigned int nr_irqs, void *arg)
{
int ret;
unsigned long hwirq;
unsigned int type, i;
struct htvec *priv = domain->host_data;
irq_domain_translate_onecell(domain, arg, &hwirq, &type);
ret = irq_domain_translate_onecell(domain, arg, &hwirq, &type);
if (ret)
return ret;
for (i = 0; i < nr_irqs; i++) {
irq_domain_set_info(domain, virq + i, hwirq + i, &htvec_irq_chip,
@ -147,7 +149,7 @@ static void htvec_reset(struct htvec *priv)
u32 idx;
/* Clear IRQ cause registers, mask all interrupts */
for (idx = 0; idx < VEC_REG_COUNT; idx++) {
for (idx = 0; idx < priv->num_parents; idx++) {
writel_relaxed(0x0, priv->base + HTVEC_EN_OFF + 4 * idx);
writel_relaxed(0xFFFFFFFF, priv->base);
}
@ -157,7 +159,7 @@ static int htvec_of_init(struct device_node *node,
struct device_node *parent)
{
struct htvec *priv;
int err, parent_irq[4], num_parents = 0, i;
int err, parent_irq[8], i;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
@ -176,33 +178,35 @@ static int htvec_of_init(struct device_node *node,
if (parent_irq[i] <= 0)
break;
num_parents++;
priv->num_parents++;
}
if (!num_parents) {
if (!priv->num_parents) {
pr_err("Failed to get parent irqs\n");
err = -ENODEV;
goto iounmap_base;
}
priv->htvec_domain = irq_domain_create_linear(of_node_to_fwnode(node),
VEC_COUNT,
&htvec_domain_ops,
priv);
(VEC_COUNT_PER_REG * priv->num_parents),
&htvec_domain_ops, priv);
if (!priv->htvec_domain) {
pr_err("Failed to create IRQ domain\n");
err = -ENOMEM;
goto iounmap_base;
goto irq_dispose;
}
htvec_reset(priv);
for (i = 0; i < num_parents; i++)
for (i = 0; i < priv->num_parents; i++)
irq_set_chained_handler_and_data(parent_irq[i],
htvec_irq_dispatch, priv);
return 0;
irq_dispose:
for (; i > 0; i--)
irq_dispose_mapping(parent_irq[i - 1]);
iounmap_base:
iounmap(priv->base);
free_priv:

11
drivers/irqchip/irq-loongson-liointc.c
View File

@ -60,7 +60,7 @@ static void liointc_chained_handle_irq(struct irq_desc *desc)
if (!pending) {
/* Always blame LPC IRQ if we have that bug */
if (handler->priv->has_lpc_irq_errata &&
(handler->parent_int_map & ~gc->mask_cache &
(handler->parent_int_map & gc->mask_cache &
BIT(LIOINTC_ERRATA_IRQ)))
pending = BIT(LIOINTC_ERRATA_IRQ);
else
@ -114,6 +114,7 @@ static int liointc_set_type(struct irq_data *data, unsigned int type)
liointc_set_bit(gc, LIOINTC_REG_INTC_POL, mask, false);
break;
default:
irq_gc_unlock_irqrestore(gc, flags);
return -EINVAL;
}
irq_gc_unlock_irqrestore(gc, flags);
@ -131,11 +132,11 @@ static void liointc_resume(struct irq_chip_generic *gc)
irq_gc_lock_irqsave(gc, flags);
/* Disable all at first */
writel(0xffffffff, gc->reg_base + LIOINTC_REG_INTC_DISABLE);
/* Revert map cache */
/* Restore map cache */
for (i = 0; i < LIOINTC_CHIP_IRQ; i++)
writeb(priv->map_cache[i], gc->reg_base + i);
/* Revert mask cache */
writel(~gc->mask_cache, gc->reg_base + LIOINTC_REG_INTC_ENABLE);
/* Restore mask cache */
writel(gc->mask_cache, gc->reg_base + LIOINTC_REG_INTC_ENABLE);
irq_gc_unlock_irqrestore(gc, flags);
}
@ -243,7 +244,7 @@ int __init liointc_of_init(struct device_node *node,
ct->chip.irq_mask_ack = irq_gc_mask_disable_reg;
ct->chip.irq_set_type = liointc_set_type;
gc->mask_cache = 0xffffffff;
gc->mask_cache = 0;
priv->gc = gc;
for (i = 0; i < LIOINTC_NUM_PARENT; i++) {

7
drivers/irqchip/irq-loongson-pch-msi.c
View File

@ -100,17 +100,12 @@ static int pch_msi_parent_domain_alloc(struct irq_domain *domain,
unsigned int virq, int hwirq)
{
struct irq_fwspec fwspec;
int ret;
fwspec.fwnode = domain->parent->fwnode;
fwspec.param_count = 1;
fwspec.param[0] = hwirq;
ret = irq_domain_alloc_irqs_parent(domain, virq, 1, &fwspec);
if (ret)
return ret;
return 0;
return irq_domain_alloc_irqs_parent(domain, virq, 1, &fwspec);
}
static int pch_msi_middle_domain_alloc(struct irq_domain *domain,

30
drivers/irqchip/irq-loongson-pch-pic.c
View File

@ -64,15 +64,6 @@ static void pch_pic_bitclr(struct pch_pic *priv, int offset, int bit)
raw_spin_unlock(&priv->pic_lock);
}
static void pch_pic_eoi_irq(struct irq_data *d)
{
u32 idx = PIC_REG_IDX(d->hwirq);
struct pch_pic *priv = irq_data_get_irq_chip_data(d);
writel(BIT(PIC_REG_BIT(d->hwirq)),
priv->base + PCH_PIC_CLR + idx * 4);
}
static void pch_pic_mask_irq(struct irq_data *d)
{
struct pch_pic *priv = irq_data_get_irq_chip_data(d);
@ -85,6 +76,9 @@ static void pch_pic_unmask_irq(struct irq_data *d)
{
struct pch_pic *priv = irq_data_get_irq_chip_data(d);
writel(BIT(PIC_REG_BIT(d->hwirq)),
priv->base + PCH_PIC_CLR + PIC_REG_IDX(d->hwirq) * 4);
irq_chip_unmask_parent(d);
pch_pic_bitclr(priv, PCH_PIC_MASK, d->hwirq);
}
@ -124,7 +118,6 @@ static struct irq_chip pch_pic_irq_chip = {
.irq_mask = pch_pic_mask_irq,
.irq_unmask = pch_pic_unmask_irq,
.irq_ack = irq_chip_ack_parent,
.irq_eoi = pch_pic_eoi_irq,
.irq_set_affinity = irq_chip_set_affinity_parent,
.irq_set_type = pch_pic_set_type,
};
@ -135,22 +128,25 @@ static int pch_pic_alloc(struct irq_domain *domain, unsigned int virq,
int err;
unsigned int type;
unsigned long hwirq;
struct irq_fwspec fwspec;
struct irq_fwspec *fwspec = arg;
struct irq_fwspec parent_fwspec;
struct pch_pic *priv = domain->host_data;
irq_domain_translate_twocell(domain, arg, &hwirq, &type);
err = irq_domain_translate_twocell(domain, fwspec, &hwirq, &type);
if (err)
return err;
fwspec.fwnode = domain->parent->fwnode;
fwspec.param_count = 1;
fwspec.param[0] = hwirq + priv->ht_vec_base;
parent_fwspec.fwnode = domain->parent->fwnode;
parent_fwspec.param_count = 1;
parent_fwspec.param[0] = hwirq + priv->ht_vec_base;
err = irq_domain_alloc_irqs_parent(domain, virq, 1, &fwspec);
err = irq_domain_alloc_irqs_parent(domain, virq, 1, &parent_fwspec);
if (err)
return err;
irq_domain_set_info(domain, virq, hwirq,
&pch_pic_irq_chip, priv,
handle_fasteoi_ack_irq, NULL, NULL);
handle_level_irq, NULL, NULL);
irq_set_probe(virq);
return 0;

10
drivers/irqchip/irq-mips-gic.c
View File

@ -46,7 +46,7 @@
void __iomem *mips_gic_base;
DEFINE_PER_CPU_READ_MOSTLY(unsigned long[GIC_MAX_LONGS], pcpu_masks);
static DEFINE_PER_CPU_READ_MOSTLY(unsigned long[GIC_MAX_LONGS], pcpu_masks);
static DEFINE_SPINLOCK(gic_lock);
static struct irq_domain *gic_irq_domain;
@ -617,8 +617,8 @@ error:
return ret;
}
void gic_ipi_domain_free(struct irq_domain *d, unsigned int virq,
unsigned int nr_irqs)
static void gic_ipi_domain_free(struct irq_domain *d, unsigned int virq,
unsigned int nr_irqs)
{
irq_hw_number_t base_hwirq;
struct irq_data *data;
@ -631,8 +631,8 @@ void gic_ipi_domain_free(struct irq_domain *d, unsigned int virq,
bitmap_set(ipi_available, base_hwirq, nr_irqs);
}
int gic_ipi_domain_match(struct irq_domain *d, struct device_node *node,
enum irq_domain_bus_token bus_token)
static int gic_ipi_domain_match(struct irq_domain *d, struct device_node *node,
enum irq_domain_bus_token bus_token)
{
bool is_ipi;

4
drivers/irqchip/irq-mtk-cirq.c
View File

@ -295,4 +295,6 @@ out_free:
return ret;
}
IRQCHIP_DECLARE(mtk_cirq, "mediatek,mtk-cirq", mtk_cirq_of_init);
IRQCHIP_PLATFORM_DRIVER_BEGIN(mtk_cirq)
IRQCHIP_MATCH("mediatek,mtk-cirq", mtk_cirq_of_init)
IRQCHIP_PLATFORM_DRIVER_END(mtk_cirq)

12
drivers/irqchip/irq-mtk-sysirq.c
View File

@ -15,7 +15,7 @@
#include <linux/spinlock.h>
struct mtk_sysirq_chip_data {
spinlock_t lock;
raw_spinlock_t lock;
u32 nr_intpol_bases;
void __iomem **intpol_bases;
u32 *intpol_words;
@ -37,7 +37,7 @@ static int mtk_sysirq_set_type(struct irq_data *data, unsigned int type)
reg_index = chip_data->which_word[hwirq];
offset = hwirq & 0x1f;
spin_lock_irqsave(&chip_data->lock, flags);
raw_spin_lock_irqsave(&chip_data->lock, flags);
value = readl_relaxed(base + reg_index * 4);
if (type == IRQ_TYPE_LEVEL_LOW || type == IRQ_TYPE_EDGE_FALLING) {
if (type == IRQ_TYPE_LEVEL_LOW)
@ -53,7 +53,7 @@ static int mtk_sysirq_set_type(struct irq_data *data, unsigned int type)
data = data->parent_data;
ret = data->chip->irq_set_type(data, type);
spin_unlock_irqrestore(&chip_data->lock, flags);
raw_spin_unlock_irqrestore(&chip_data->lock, flags);
return ret;
}
@ -212,7 +212,7 @@ static int __init mtk_sysirq_of_init(struct device_node *node,
ret = -ENOMEM;
goto out_free_which_word;
}
spin_lock_init(&chip_data->lock);
raw_spin_lock_init(&chip_data->lock);
return 0;
@ -231,4 +231,6 @@ out_free_chip:
kfree(chip_data);
return ret;
}
IRQCHIP_DECLARE(mtk_sysirq, "mediatek,mt6577-sysirq", mtk_sysirq_of_init);
IRQCHIP_PLATFORM_DRIVER_BEGIN(mtk_sysirq)
IRQCHIP_MATCH("mediatek,mt6577-sysirq", mtk_sysirq_of_init)
IRQCHIP_PLATFORM_DRIVER_END(mtk_sysirq)

166
drivers/irqchip/irq-stm32-exti.c
View File

@ -25,7 +25,6 @@
#define IRQS_PER_BANK 32
#define HWSPNLCK_TIMEOUT 1000 /* usec */
#define HWSPNLCK_RETRY_DELAY 100 /* usec */
struct stm32_exti_bank {
u32 imr_ofst;
@ -42,6 +41,7 @@ struct stm32_exti_bank {
struct stm32_desc_irq {
u32 exti;
u32 irq_parent;
struct irq_chip *chip;
};
struct stm32_exti_drv_data {
@ -166,27 +166,41 @@ static const struct stm32_exti_bank *stm32mp1_exti_banks[] = {
&stm32mp1_exti_b3,
};
static struct irq_chip stm32_exti_h_chip;
static struct irq_chip stm32_exti_h_chip_direct;
static const struct stm32_desc_irq stm32mp1_desc_irq[] = {
{ .exti = 0, .irq_parent = 6 },
{ .exti = 1, .irq_parent = 7 },
{ .exti = 2, .irq_parent = 8 },
{ .exti = 3, .irq_parent = 9 },
{ .exti = 4, .irq_parent = 10 },
{ .exti = 5, .irq_parent = 23 },
{ .exti = 6, .irq_parent = 64 },
{ .exti = 7, .irq_parent = 65 },
{ .exti = 8, .irq_parent = 66 },
{ .exti = 9, .irq_parent = 67 },
{ .exti = 10, .irq_parent = 40 },
{ .exti = 11, .irq_parent = 42 },
{ .exti = 12, .irq_parent = 76 },
{ .exti = 13, .irq_parent = 77 },
{ .exti = 14, .irq_parent = 121 },
{ .exti = 15, .irq_parent = 127 },
{ .exti = 16, .irq_parent = 1 },
{ .exti = 65, .irq_parent = 144 },
{ .exti = 68, .irq_parent = 143 },
{ .exti = 73, .irq_parent = 129 },
{ .exti = 0, .irq_parent = 6, .chip = &stm32_exti_h_chip },
{ .exti = 1, .irq_parent = 7, .chip = &stm32_exti_h_chip },
{ .exti = 2, .irq_parent = 8, .chip = &stm32_exti_h_chip },
{ .exti = 3, .irq_parent = 9, .chip = &stm32_exti_h_chip },
{ .exti = 4, .irq_parent = 10, .chip = &stm32_exti_h_chip },
{ .exti = 5, .irq_parent = 23, .chip = &stm32_exti_h_chip },
{ .exti = 6, .irq_parent = 64, .chip = &stm32_exti_h_chip },
{ .exti = 7, .irq_parent = 65, .chip = &stm32_exti_h_chip },
{ .exti = 8, .irq_parent = 66, .chip = &stm32_exti_h_chip },
{ .exti = 9, .irq_parent = 67, .chip = &stm32_exti_h_chip },
{ .exti = 10, .irq_parent = 40, .chip = &stm32_exti_h_chip },
{ .exti = 11, .irq_parent = 42, .chip = &stm32_exti_h_chip },
{ .exti = 12, .irq_parent = 76, .chip = &stm32_exti_h_chip },
{ .exti = 13, .irq_parent = 77, .chip = &stm32_exti_h_chip },
{ .exti = 14, .irq_parent = 121, .chip = &stm32_exti_h_chip },
{ .exti = 15, .irq_parent = 127, .chip = &stm32_exti_h_chip },
{ .exti = 16, .irq_parent = 1, .chip = &stm32_exti_h_chip },
{ .exti = 19, .irq_parent = 3, .chip = &stm32_exti_h_chip_direct },
{ .exti = 21, .irq_parent = 31, .chip = &stm32_exti_h_chip_direct },
{ .exti = 22, .irq_parent = 33, .chip = &stm32_exti_h_chip_direct },
{ .exti = 23, .irq_parent = 72, .chip = &stm32_exti_h_chip_direct },
{ .exti = 24, .irq_parent = 95, .chip = &stm32_exti_h_chip_direct },
{ .exti = 25, .irq_parent = 107, .chip = &stm32_exti_h_chip_direct },
{ .exti = 30, .irq_parent = 52, .chip = &stm32_exti_h_chip_direct },
{ .exti = 47, .irq_parent = 93, .chip = &stm32_exti_h_chip_direct },
{ .exti = 54, .irq_parent = 135, .chip = &stm32_exti_h_chip_direct },
{ .exti = 61, .irq_parent = 100, .chip = &stm32_exti_h_chip_direct },
{ .exti = 65, .irq_parent = 144, .chip = &stm32_exti_h_chip },
{ .exti = 68, .irq_parent = 143, .chip = &stm32_exti_h_chip },
{ .exti = 70, .irq_parent = 62, .chip = &stm32_exti_h_chip_direct },
{ .exti = 73, .irq_parent = 129, .chip = &stm32_exti_h_chip },
};
static const struct stm32_exti_drv_data stm32mp1_drv_data = {
@ -196,22 +210,23 @@ static const struct stm32_exti_drv_data stm32mp1_drv_data = {
.irq_nr = ARRAY_SIZE(stm32mp1_desc_irq),
};
static int stm32_exti_to_irq(const struct stm32_exti_drv_data *drv_data,
irq_hw_number_t hwirq)
static const struct
stm32_desc_irq *stm32_exti_get_desc(const struct stm32_exti_drv_data *drv_data,
irq_hw_number_t hwirq)
{
const struct stm32_desc_irq *desc_irq;
const struct stm32_desc_irq *desc = NULL;
int i;
if (!drv_data->desc_irqs)
return -EINVAL;
return NULL;
for (i = 0; i < drv_data->irq_nr; i++) {
desc_irq = &drv_data->desc_irqs[i];
if (desc_irq->exti == hwirq)
return desc_irq->irq_parent;
desc = &drv_data->desc_irqs[i];
if (desc->exti == hwirq)
break;
}
return -EINVAL;
return desc;
}
static unsigned long stm32_exti_pending(struct irq_chip_generic *gc)
@ -277,55 +292,24 @@ static int stm32_exti_set_type(struct irq_data *d,
return 0;
}
static int stm32_exti_hwspin_lock(struct stm32_exti_chip_data *chip_data)
{
int ret, timeout = 0;
if (!chip_data->host_data->hwlock)
return 0;
/*
* Use the x_raw API since we are under spin_lock protection.
* Do not use the x_timeout API because we are under irq_disable
* mode (see __setup_irq())
*/
do {
ret = hwspin_trylock_raw(chip_data->host_data->hwlock);
if (!ret)
return 0;
udelay(HWSPNLCK_RETRY_DELAY);
timeout += HWSPNLCK_RETRY_DELAY;
} while (timeout < HWSPNLCK_TIMEOUT);
if (ret == -EBUSY)
ret = -ETIMEDOUT;
if (ret)
pr_err("%s can't get hwspinlock (%d)\n", __func__, ret);
return ret;
}
static void stm32_exti_hwspin_unlock(struct stm32_exti_chip_data *chip_data)
{
if (chip_data->host_data->hwlock)
hwspin_unlock_raw(chip_data->host_data->hwlock);
}
static int stm32_irq_set_type(struct irq_data *d, unsigned int type)
{
struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
struct stm32_exti_chip_data *chip_data = gc->private;
const struct stm32_exti_bank *stm32_bank = chip_data->reg_bank;
struct hwspinlock *hwlock = chip_data->host_data->hwlock;
u32 rtsr, ftsr;
int err;
irq_gc_lock(gc);
err = stm32_exti_hwspin_lock(chip_data);
if (err)
goto unlock;
if (hwlock) {
err = hwspin_lock_timeout_in_atomic(hwlock, HWSPNLCK_TIMEOUT);
if (err) {
pr_err("%s can't get hwspinlock (%d)\n", __func__, err);
goto unlock;
}
}
rtsr = irq_reg_readl(gc, stm32_bank->rtsr_ofst);
ftsr = irq_reg_readl(gc, stm32_bank->ftsr_ofst);
@ -338,7 +322,8 @@ static int stm32_irq_set_type(struct irq_data *d, unsigned int type)
irq_reg_writel(gc, ftsr, stm32_bank->ftsr_ofst);
unspinlock:
stm32_exti_hwspin_unlock(chip_data);
if (hwlock)
hwspin_unlock_in_atomic(hwlock);
unlock:
irq_gc_unlock(gc);
@ -504,15 +489,20 @@ static int stm32_exti_h_set_type(struct irq_data *d, unsigned int type)
{
struct stm32_exti_chip_data *chip_data = irq_data_get_irq_chip_data(d);
const struct stm32_exti_bank *stm32_bank = chip_data->reg_bank;
struct hwspinlock *hwlock = chip_data->host_data->hwlock;
void __iomem *base = chip_data->host_data->base;
u32 rtsr, ftsr;
int err;
raw_spin_lock(&chip_data->rlock);
err = stm32_exti_hwspin_lock(chip_data);
if (err)
goto unlock;
if (hwlock) {
err = hwspin_lock_timeout_in_atomic(hwlock, HWSPNLCK_TIMEOUT);
if (err) {
pr_err("%s can't get hwspinlock (%d)\n", __func__, err);
goto unlock;
}
}
rtsr = readl_relaxed(base + stm32_bank->rtsr_ofst);
ftsr = readl_relaxed(base + stm32_bank->ftsr_ofst);
@ -525,7 +515,8 @@ static int stm32_exti_h_set_type(struct irq_data *d, unsigned int type)
writel_relaxed(ftsr, base + stm32_bank->ftsr_ofst);
unspinlock:
stm32_exti_hwspin_unlock(chip_data);
if (hwlock)
hwspin_unlock_in_atomic(hwlock);
unlock:
raw_spin_unlock(&chip_data->rlock);
@ -628,30 +619,47 @@ static struct irq_chip stm32_exti_h_chip = {
.irq_set_affinity = IS_ENABLED(CONFIG_SMP) ? stm32_exti_h_set_affinity : NULL,
};
static struct irq_chip stm32_exti_h_chip_direct = {
.name = "stm32-exti-h-direct",
.irq_eoi = irq_chip_eoi_parent,
.irq_ack = irq_chip_ack_parent,
.irq_mask = irq_chip_mask_parent,
.irq_unmask = irq_chip_unmask_parent,
.irq_retrigger = irq_chip_retrigger_hierarchy,
.irq_set_type = irq_chip_set_type_parent,
.irq_set_wake = stm32_exti_h_set_wake,
.flags = IRQCHIP_MASK_ON_SUSPEND,
.irq_set_affinity = IS_ENABLED(CONFIG_SMP) ? irq_chip_set_affinity_parent : NULL,
};
static int stm32_exti_h_domain_alloc(struct irq_domain *dm,
unsigned int virq,
unsigned int nr_irqs, void *data)
{
struct stm32_exti_host_data *host_data = dm->host_data;
struct stm32_exti_chip_data *chip_data;
const struct stm32_desc_irq *desc;
struct irq_fwspec *fwspec = data;
struct irq_fwspec p_fwspec;
irq_hw_number_t hwirq;
int p_irq, bank;
int bank;
hwirq = fwspec->param[0];
bank = hwirq / IRQS_PER_BANK;
chip_data = &host_data->chips_data[bank];
irq_domain_set_hwirq_and_chip(dm, virq, hwirq,
&stm32_exti_h_chip, chip_data);
p_irq = stm32_exti_to_irq(host_data->drv_data, hwirq);
if (p_irq >= 0) {
desc = stm32_exti_get_desc(host_data->drv_data, hwirq);
if (!desc)
return -EINVAL;
irq_domain_set_hwirq_and_chip(dm, virq, hwirq, desc->chip,
chip_data);
if (desc->irq_parent) {
p_fwspec.fwnode = dm->parent->fwnode;
p_fwspec.param_count = 3;
p_fwspec.param[0] = GIC_SPI;
p_fwspec.param[1] = p_irq;
p_fwspec.param[1] = desc->irq_parent;
p_fwspec.param[2] = IRQ_TYPE_LEVEL_HIGH;
return irq_domain_alloc_irqs_parent(dm, virq, 1, &p_fwspec);

6
drivers/irqchip/irq-ti-sci-inta.c
View File

@ -433,8 +433,6 @@ static int ti_sci_inta_set_type(struct irq_data *data, unsigned int type)
default:
return -EINVAL;
}
return -EINVAL;
}
static struct irq_chip ti_sci_inta_irq_chip = {
@ -572,7 +570,7 @@ static int ti_sci_inta_irq_domain_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
inta->base = devm_ioremap_resource(dev, res);
if (IS_ERR(inta->base))
return -ENODEV;
return PTR_ERR(inta->base);
domain = irq_domain_add_linear(dev_of_node(dev),
ti_sci_get_num_resources(inta->vint),
@ -612,6 +610,6 @@ static struct platform_driver ti_sci_inta_irq_domain_driver = {
};
module_platform_driver(ti_sci_inta_irq_domain_driver);
MODULE_AUTHOR("Lokesh Vutla <lokeshvutla@ticom>");
MODULE_AUTHOR("Lokesh Vutla <lokeshvutla@ti.com>");
MODULE_DESCRIPTION("K3 Interrupt Aggregator driver over TI SCI protocol");
MODULE_LICENSE("GPL v2");

26
drivers/irqchip/irq-vic.c
View File

@ -27,7 +27,10 @@
#define VIC_IRQ_STATUS 0x00
#define VIC_FIQ_STATUS 0x04
#define VIC_RAW_STATUS 0x08
#define VIC_INT_SELECT 0x0c /* 1 = FIQ, 0 = IRQ */
#define VIC_INT_ENABLE 0x10 /* 1 = enable, 0 = disable */
#define VIC_INT_ENABLE_CLEAR 0x14
#define VIC_INT_SOFT 0x18
#define VIC_INT_SOFT_CLEAR 0x1c
#define VIC_PROTECT 0x20
@ -428,7 +431,7 @@ static void __init vic_init_st(void __iomem *base, unsigned int irq_start,
vic_register(base, 0, irq_start, vic_sources, 0, node);
}
void __init __vic_init(void __iomem *base, int parent_irq, int irq_start,
static void __init __vic_init(void __iomem *base, int parent_irq, int irq_start,
u32 vic_sources, u32 resume_sources,
struct device_node *node)
{
@ -481,27 +484,6 @@ void __init vic_init(void __iomem *base, unsigned int irq_start,
__vic_init(base, 0, irq_start, vic_sources, resume_sources, NULL);
}
/**
* vic_init_cascaded() - initialise a cascaded vectored interrupt controller
* @base: iomem base address
* @parent_irq: the parent IRQ we're cascaded off
* @vic_sources: bitmask of interrupt sources to allow
* @resume_sources: bitmask of interrupt sources to allow for resume
*
* This returns the base for the new interrupts or negative on error.
*/
int __init vic_init_cascaded(void __iomem *base, unsigned int parent_irq,
u32 vic_sources, u32 resume_sources)
{
struct vic_device *v;
v = &vic_devices[vic_id];
__vic_init(base, parent_irq, 0, vic_sources, resume_sources, NULL);
/* Return out acquired base */
return v->irq;
}
EXPORT_SYMBOL_GPL(vic_init_cascaded);
#ifdef CONFIG_OF
static int __init vic_of_init(struct device_node *node,
struct device_node *parent)

29
drivers/irqchip/irqchip.c
View File

@ -10,8 +10,10 @@
#include <linux/acpi.h>
#include <linux/init.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/irqchip.h>
#include <linux/platform_device.h>
/*
* This special of_device_id is the sentinel at the end of the
@ -29,3 +31,30 @@ void __init irqchip_init(void)
of_irq_init(__irqchip_of_table);
acpi_probe_device_table(irqchip);
}
int platform_irqchip_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct device_node *par_np = of_irq_find_parent(np);
of_irq_init_cb_t irq_init_cb = of_device_get_match_data(&pdev->dev);
if (!irq_init_cb)
return -EINVAL;
if (par_np == np)
par_np = NULL;
/*
* If there's a parent interrupt controller and none of the parent irq
* domains have been registered, that means the parent interrupt
* controller has not been initialized yet. it's not time for this
* interrupt controller to initialize. So, defer probe of this
* interrupt controller. The actual initialization callback of this
* interrupt controller can check for specific domains as necessary.
*/
if (par_np && !irq_find_matching_host(np, DOMAIN_BUS_ANY))
return -EPROBE_DEFER;
return irq_init_cb(np, par_np);
}
EXPORT_SYMBOL_GPL(platform_irqchip_probe);

8
drivers/irqchip/qcom-pdc.c
View File

@ -11,9 +11,11 @@
#include <linux/irqdomain.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/soc/qcom/irq.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
@ -430,4 +432,8 @@ fail:
return ret;
}
IRQCHIP_DECLARE(qcom_pdc, "qcom,pdc", qcom_pdc_init);
IRQCHIP_PLATFORM_DRIVER_BEGIN(qcom_pdc)
IRQCHIP_MATCH("qcom,pdc", qcom_pdc_init)
IRQCHIP_PLATFORM_DRIVER_END(qcom_pdc)
MODULE_DESCRIPTION("Qualcomm Technologies, Inc. Power Domain Controller");
MODULE_LICENSE("GPL v2");

23
include/linux/acpi.h
View File

@ -1143,16 +1143,27 @@ struct acpi_probe_entry {
kernel_ulong_t driver_data;
};
#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \
valid, data, fn) \
static const struct acpi_probe_entry __acpi_probe_##name \
__used __section(__##table##_acpi_probe_table) \
= { \
__used __section(__##table##_acpi_probe_table) = { \
.id = table_id, \
.type = subtable, \
.subtable_valid = valid, \
.probe_table = (acpi_tbl_table_handler)fn, \
.driver_data = data, \
}
.probe_table = fn, \
.driver_data = data, \
}
#define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \
subtable, valid, data, fn) \
static const struct acpi_probe_entry __acpi_probe_##name \
__used __section(__##table##_acpi_probe_table) = { \
.id = table_id, \
.type = subtable, \
.subtable_valid = valid, \
.probe_subtbl = fn, \
.driver_data = data, \
}
#define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
#define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end

29
include/linux/irqchip.h
View File

@ -12,7 +12,9 @@
#define _LINUX_IRQCHIP_H
#include <linux/acpi.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
/*
* This macro must be used by the different irqchip drivers to declare
@ -26,6 +28,28 @@
*/
#define IRQCHIP_DECLARE(name, compat, fn) OF_DECLARE_2(irqchip, name, compat, fn)
extern int platform_irqchip_probe(struct platform_device *pdev);
#define IRQCHIP_PLATFORM_DRIVER_BEGIN(drv_name) \
static const struct of_device_id drv_name##_irqchip_match_table[] = {
#define IRQCHIP_MATCH(compat, fn) { .compatible = compat, .data = fn },
#define IRQCHIP_PLATFORM_DRIVER_END(drv_name) \
{}, \
}; \
MODULE_DEVICE_TABLE(of, drv_name##_irqchip_match_table); \
static struct platform_driver drv_name##_driver = { \
.probe = platform_irqchip_probe, \
.driver = { \
.name = #drv_name, \
.owner = THIS_MODULE, \
.of_match_table = drv_name##_irqchip_match_table, \
.suppress_bind_attrs = true, \
}, \
}; \
builtin_platform_driver(drv_name##_driver)
/*
* This macro must be used by the different irqchip drivers to declare
* the association between their version and their initialization function.
@ -39,8 +63,9 @@
* @fn: initialization function
*/
#define IRQCHIP_ACPI_DECLARE(name, subtable, validate, data, fn) \
ACPI_DECLARE_PROBE_ENTRY(irqchip, name, ACPI_SIG_MADT, \
subtable, validate, data, fn)
ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(irqchip, name, \
ACPI_SIG_MADT, subtable, \
validate, data, fn)
#ifdef CONFIG_IRQCHIP
void irqchip_init(void);

4
include/linux/irqchip/arm-gic-v3.h
View File

@ -19,7 +19,6 @@
#define GICD_CLRSPI_NSR 0x0048
#define GICD_SETSPI_SR 0x0050
#define GICD_CLRSPI_SR 0x0058
#define GICD_SEIR 0x0068
#define GICD_IGROUPR 0x0080
#define GICD_ISENABLER 0x0100
#define GICD_ICENABLER 0x0180
@ -119,14 +118,11 @@
#define GICR_WAKER 0x0014
#define GICR_SETLPIR 0x0040
#define GICR_CLRLPIR 0x0048
#define GICR_SEIR GICD_SEIR
#define GICR_PROPBASER 0x0070
#define GICR_PENDBASER 0x0078
#define GICR_INVLPIR 0x00A0
#define GICR_INVALLR 0x00B0
#define GICR_SYNCR 0x00C0
#define GICR_MOVLPIR 0x0100
#define GICR_MOVALLR 0x0110
#define GICR_IDREGS GICD_IDREGS
#define GICR_PIDR2 GICD_PIDR2

11
include/linux/irqchip/arm-vic.h
View File

@ -9,17 +9,6 @@
#include <linux/types.h>
#define VIC_RAW_STATUS 0x08
#define VIC_INT_ENABLE 0x10 /* 1 = enable, 0 = disable */
#define VIC_INT_ENABLE_CLEAR 0x14
struct device_node;
struct pt_regs;
void __vic_init(void __iomem *base, int parent_irq, int irq_start,
u32 vic_sources, u32 resume_sources, struct device_node *node);
void vic_init(void __iomem *base, unsigned int irq_start, u32 vic_sources, u32 resume_sources);
int vic_init_cascaded(void __iomem *base, unsigned int parent_irq,
u32 vic_sources, u32 resume_sources);
#endif

2
include/linux/irqchip/irq-bcm2836.h
View File

@ -30,7 +30,7 @@
*/
#define LOCAL_MAILBOX_INT_CONTROL0 0x050
/*
* The CPU's interrupt status register. Bits are defined by the the
* The CPU's interrupt status register. Bits are defined by the
* LOCAL_IRQ_* bits below.
*/
#define LOCAL_IRQ_PENDING0 0x060

3
kernel/irq/chip.c
View File

@ -1465,6 +1465,7 @@ int irq_chip_retrigger_hierarchy(struct irq_data *data)
return 0;
}
EXPORT_SYMBOL_GPL(irq_chip_retrigger_hierarchy);
/**
* irq_chip_set_vcpu_affinity_parent - Set vcpu affinity on the parent interrupt
@ -1479,7 +1480,7 @@ int irq_chip_set_vcpu_affinity_parent(struct irq_data *data, void *vcpu_info)
return -ENOSYS;
}
EXPORT_SYMBOL_GPL(irq_chip_set_vcpu_affinity_parent);
/**
* irq_chip_set_wake_parent - Set/reset wake-up on the parent interrupt
* @data: Pointer to interrupt specific data

3
kernel/irq/irqdomain.c
View File

@ -142,7 +142,7 @@ struct irq_domain *__irq_domain_add(struct fwnode_handle *fwnode, int size,
if (!domain)
return NULL;
if (fwnode && is_fwnode_irqchip(fwnode)) {
if (is_fwnode_irqchip(fwnode)) {
fwid = container_of(fwnode, struct irqchip_fwid, fwnode);
switch (fwid->type) {
@ -281,6 +281,7 @@ void irq_domain_update_bus_token(struct irq_domain *domain,
mutex_unlock(&irq_domain_mutex);
}
EXPORT_SYMBOL_GPL(irq_domain_update_bus_token);
/**
* irq_domain_add_simple() - Register an irq_domain and optionally map a range of irqs