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Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Browse Source 
Pull irq fixes from Thomas Gleixner:
 "A set of fixes for the interrupt subsystem:

   - Remove secondary GIC support on systems w/o device-tree support

   - A set of small fixlets in various irqchip drivers

   - static and fall-through annotations

   - Kernel doc and typo fixes"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq: Mark expected switch case fall-through
  genirq/devres: Remove excess parameter from kernel doc
  irqchip/irq-mvebu-sei: Make mvebu_sei_ap806_caps static
  irqchip/mbigen: Don't clear eventid when freeing an MSI
  irqchip/stm32: Don't set rising configuration registers at init
  irqchip/stm32: Don't clear rising/falling config registers at init
  dt-bindings: irqchip: renesas-irqc: Document r8a774c0 support
  irqchip/mmp: Make mmp_irq_domain_ops static
  irqchip/brcmstb-l2: Make two init functions static
  genirq: Fix typo in comment of IRQD_MOVE_PCNTXT
  irqchip/gic-v3-its: Fix comparison logic in lpi_range_cmp
  irqchip/gic: Drop support for secondary GIC in non-DT systems
  irqchip/imx-irqsteer: Fix of_property_read_u32() error handling
This commit is contained in:
Linus Torvalds 2019-03-24 10:51:23 -07:00
commit e08fef881d
14 changed files with 35 additions and 52 deletions
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1
Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
View File

@ -16,6 +16,7 @@ Required properties:
- "renesas,irqc-r8a7793" (R-Car M2-N)
- "renesas,irqc-r8a7794" (R-Car E2)
- "renesas,intc-ex-r8a774a1" (RZ/G2M)
- "renesas,intc-ex-r8a774c0" (RZ/G2E)
- "renesas,intc-ex-r8a7795" (R-Car H3)
- "renesas,intc-ex-r8a7796" (R-Car M3-W)
- "renesas,intc-ex-r8a77965" (R-Car M3-N)

2
arch/arm/mach-cns3xxx/core.c
View File

@ -90,7 +90,7 @@ void __init cns3xxx_map_io(void)
/* used by entry-macro.S */
void __init cns3xxx_init_irq(void)
{
gic_init(0, 29, IOMEM(CNS3XXX_TC11MP_GIC_DIST_BASE_VIRT),
gic_init(IOMEM(CNS3XXX_TC11MP_GIC_DIST_BASE_VIRT),
IOMEM(CNS3XXX_TC11MP_GIC_CPU_BASE_VIRT));
}

4
drivers/irqchip/irq-brcmstb-l2.c
View File

@ -275,14 +275,14 @@ out_free:
return ret;
}
int __init brcmstb_l2_edge_intc_of_init(struct device_node *np,
static int __init brcmstb_l2_edge_intc_of_init(struct device_node *np,
struct device_node *parent)
{
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);
int __init brcmstb_l2_lvl_intc_of_init(struct device_node *np,
static int __init brcmstb_l2_lvl_intc_of_init(struct device_node *np,
struct device_node *parent)
{
return brcmstb_l2_intc_of_init(np, parent, &l2_lvl_intc_init);

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

@ -1482,7 +1482,7 @@ static int lpi_range_cmp(void *priv, struct list_head *a, struct list_head *b)
ra = container_of(a, struct lpi_range, entry);
rb = container_of(b, struct lpi_range, entry);
return rb->base_id - ra->base_id;
return ra->base_id - rb->base_id;
}
static void merge_lpi_ranges(void)

45
drivers/irqchip/irq-gic.c
View File

@ -1089,11 +1089,10 @@ static void gic_init_chip(struct gic_chip_data *gic, struct device *dev,
#endif
}
static int gic_init_bases(struct gic_chip_data *gic, int irq_start,
static int gic_init_bases(struct gic_chip_data *gic,
struct fwnode_handle *handle)
{
irq_hw_number_t hwirq_base;
int gic_irqs, irq_base, ret;
int gic_irqs, ret;
if (IS_ENABLED(CONFIG_GIC_NON_BANKED) && gic->percpu_offset) {
/* Frankein-GIC without banked registers... */
@ -1145,28 +1144,21 @@ static int gic_init_bases(struct gic_chip_data *gic, int irq_start,
} else { /* Legacy support */
/*
* For primary GICs, skip over SGIs.
* For secondary GICs, skip over PPIs, too.
* No secondary GIC support whatsoever.
*/
if (gic == &gic_data[0] && (irq_start & 31) > 0) {
hwirq_base = 16;
if (irq_start != -1)
irq_start = (irq_start & ~31) + 16;
} else {
hwirq_base = 32;
}
int irq_base;
gic_irqs -= hwirq_base; /* calculate # of irqs to allocate */
gic_irqs -= 16; /* calculate # of irqs to allocate */
irq_base = irq_alloc_descs(irq_start, 16, gic_irqs,
irq_base = irq_alloc_descs(16, 16, gic_irqs,
numa_node_id());
if (irq_base < 0) {
WARN(1, "Cannot allocate irq_descs @ IRQ%d, assuming pre-allocated\n",
irq_start);
irq_base = irq_start;
WARN(1, "Cannot allocate irq_descs @ IRQ16, assuming pre-allocated\n");
irq_base = 16;
}
gic->domain = irq_domain_add_legacy(NULL, gic_irqs, irq_base,
hwirq_base, &gic_irq_domain_ops, gic);
16, &gic_irq_domain_ops, gic);
}
if (WARN_ON(!gic->domain)) {
@ -1195,7 +1187,6 @@ error:
}
static int __init __gic_init_bases(struct gic_chip_data *gic,
int irq_start,
struct fwnode_handle *handle)
{
char *name;
@ -1231,32 +1222,28 @@ static int __init __gic_init_bases(struct gic_chip_data *gic,
gic_init_chip(gic, NULL, name, false);
}
ret = gic_init_bases(gic, irq_start, handle);
ret = gic_init_bases(gic, handle);
if (ret)
kfree(name);
return ret;
}
void __init gic_init(unsigned int gic_nr, int irq_start,
void __iomem *dist_base, void __iomem *cpu_base)
void __init gic_init(void __iomem *dist_base, void __iomem *cpu_base)
{
struct gic_chip_data *gic;
if (WARN_ON(gic_nr >= CONFIG_ARM_GIC_MAX_NR))
return;
/*
* Non-DT/ACPI systems won't run a hypervisor, so let's not
* bother with these...
*/
static_branch_disable(&supports_deactivate_key);
gic = &gic_data[gic_nr];
gic = &gic_data[0];
gic->raw_dist_base = dist_base;
gic->raw_cpu_base = cpu_base;
__gic_init_bases(gic, irq_start, NULL);
__gic_init_bases(gic, NULL);
}
static void gic_teardown(struct gic_chip_data *gic)
@ -1399,7 +1386,7 @@ int gic_of_init_child(struct device *dev, struct gic_chip_data **gic, int irq)
if (ret)
return ret;
ret = gic_init_bases(*gic, -1, &dev->of_node->fwnode);
ret = gic_init_bases(*gic, &dev->of_node->fwnode);
if (ret) {
gic_teardown(*gic);
return ret;
@ -1459,7 +1446,7 @@ gic_of_init(struct device_node *node, struct device_node *parent)
if (gic_cnt == 0 && !gic_check_eoimode(node, &gic->raw_cpu_base))
static_branch_disable(&supports_deactivate_key);
ret = __gic_init_bases(gic, -1, &node->fwnode);
ret = __gic_init_bases(gic, &node->fwnode);
if (ret) {
gic_teardown(gic);
return ret;
@ -1650,7 +1637,7 @@ static int __init gic_v2_acpi_init(struct acpi_subtable_header *header,
return -ENOMEM;
}
ret = __gic_init_bases(gic, -1, domain_handle);
ret = __gic_init_bases(gic, domain_handle);
if (ret) {
pr_err("Failed to initialise GIC\n");
irq_domain_free_fwnode(domain_handle);

8
drivers/irqchip/irq-imx-irqsteer.c
View File

@ -169,8 +169,12 @@ static int imx_irqsteer_probe(struct platform_device *pdev)
raw_spin_lock_init(&data->lock);
of_property_read_u32(np, "fsl,num-irqs", &irqs_num);
of_property_read_u32(np, "fsl,channel", &data->channel);
ret = of_property_read_u32(np, "fsl,num-irqs", &irqs_num);
if (ret)
return ret;
ret = of_property_read_u32(np, "fsl,channel", &data->channel);
if (ret)
return ret;
/*
* There is one output irq for each group of 64 inputs.

3
drivers/irqchip/irq-mbigen.c
View File

@ -161,6 +161,9 @@ static void mbigen_write_msg(struct msi_desc *desc, struct msi_msg *msg)
void __iomem *base = d->chip_data;
u32 val;
if (!msg->address_lo && !msg->address_hi)
return;
base += get_mbigen_vec_reg(d->hwirq);
val = readl_relaxed(base);

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

@ -179,7 +179,7 @@ static int mmp_irq_domain_xlate(struct irq_domain *d, struct device_node *node,
return 0;
}
const struct irq_domain_ops mmp_irq_domain_ops = {
static const struct irq_domain_ops mmp_irq_domain_ops = {
.map = mmp_irq_domain_map,
.xlate = mmp_irq_domain_xlate,
};

2
drivers/irqchip/irq-mvebu-sei.c
View File

@ -478,7 +478,7 @@ dispose_irq:
return ret;
}
struct mvebu_sei_caps mvebu_sei_ap806_caps = {
static struct mvebu_sei_caps mvebu_sei_ap806_caps = {
.ap_range = {
.first = 0,
.size = 21,

10
drivers/irqchip/irq-stm32-exti.c
View File

@ -716,7 +716,6 @@ stm32_exti_chip_data *stm32_exti_chip_init(struct stm32_exti_host_data *h_data,
const struct stm32_exti_bank *stm32_bank;
struct stm32_exti_chip_data *chip_data;
void __iomem *base = h_data->base;
u32 irqs_mask;
stm32_bank = h_data->drv_data->exti_banks[bank_idx];
chip_data = &h_data->chips_data[bank_idx];
@ -725,21 +724,12 @@ stm32_exti_chip_data *stm32_exti_chip_init(struct stm32_exti_host_data *h_data,
raw_spin_lock_init(&chip_data->rlock);
/* Determine number of irqs supported */
writel_relaxed(~0UL, base + stm32_bank->rtsr_ofst);
irqs_mask = readl_relaxed(base + stm32_bank->rtsr_ofst);
/*
* This IP has no reset, so after hot reboot we should
* clear registers to avoid residue
*/
writel_relaxed(0, base + stm32_bank->imr_ofst);
writel_relaxed(0, base + stm32_bank->emr_ofst);
writel_relaxed(0, base + stm32_bank->rtsr_ofst);
writel_relaxed(0, base + stm32_bank->ftsr_ofst);
writel_relaxed(~0UL, base + stm32_bank->rpr_ofst);
if (stm32_bank->fpr_ofst != UNDEF_REG)
writel_relaxed(~0UL, base + stm32_bank->fpr_ofst);
pr_info("%pOF: bank%d\n", h_data->node, bank_idx);

2
include/linux/irq.h
View File

@ -195,7 +195,7 @@ struct irq_data {
* IRQD_LEVEL - Interrupt is level triggered
* IRQD_WAKEUP_STATE - Interrupt is configured for wakeup
* from suspend
* IRDQ_MOVE_PCNTXT - Interrupt can be moved in process
* IRQD_MOVE_PCNTXT - Interrupt can be moved in process
* context
* IRQD_IRQ_DISABLED - Disabled state of the interrupt
* IRQD_IRQ_MASKED - Masked state of the interrupt

3
include/linux/irqchip/arm-gic.h
View File

@ -158,8 +158,7 @@ int gic_of_init_child(struct device *dev, struct gic_chip_data **gic, int irq);
* Legacy platforms not converted to DT yet must use this to init
* their GIC
*/
void gic_init(unsigned int nr, int start,
void __iomem *dist , void __iomem *cpu);
void gic_init(void __iomem *dist , void __iomem *cpu);
int gicv2m_init(struct fwnode_handle *parent_handle,
struct irq_domain *parent);

2
kernel/irq/devres.c
View File

@ -84,8 +84,6 @@ EXPORT_SYMBOL(devm_request_threaded_irq);
* @dev: device to request interrupt for
* @irq: Interrupt line to allocate
* @handler: Function to be called when the IRQ occurs
* @thread_fn: function to be called in a threaded interrupt context. NULL
* for devices which handle everything in @handler
* @irqflags: Interrupt type flags
* @devname: An ascii name for the claiming device, dev_name(dev) if NULL
* @dev_id: A cookie passed back to the handler function

1
kernel/irq/manage.c
View File

@ -196,6 +196,7 @@ int irq_do_set_affinity(struct irq_data *data, const struct cpumask *mask,
case IRQ_SET_MASK_OK:
case IRQ_SET_MASK_OK_DONE:
cpumask_copy(desc->irq_common_data.affinity, mask);
/* fall through */
case IRQ_SET_MASK_OK_NOCOPY:
irq_validate_effective_affinity(data);
irq_set_thread_affinity(desc);