From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: linux-arch@vger.kernel.org, Linus Torvalds <torvalds@osdl.org>,
Andrew Morton <akpm@linux-foundation.org>,
x86@kernel.org, Peter Zijlstra <peterz@infradead.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mundt <lethal@linux-sh.org>,
Russell King <linux@arm.linux.org.uk>,
David Woodhouse <dwmw2@infradead.org>,
Jesse Barnes <jbarnes@virtuousgeek.org>,
Yinghai Lu <yinghai@kernel.org>,
Grant Likely <grant.likely@secretlab.ca>,
"Eric W. Biederman" <ebiederm@xmission.com>
Subject: [patch 24/47] x86: i8259: Convert to new irq_chip functions
Date: Thu, 30 Sep 2010 23:16:27 -0000 [thread overview]
Message-ID: <20100930221740.835901506@linutronix.de> (raw)
In-Reply-To: 20100930221351.682772535@linutronix.de
[-- Attachment #1: x86-convert-i8259.patch --]
[-- Type: text/plain, Size: 8876 bytes --]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/x86/include/asm/i8259.h | 2 +
arch/x86/kernel/apic/io_apic.c | 20 ++++++-------
arch/x86/kernel/apic/nmi.c | 2 -
arch/x86/kernel/i8259.c | 63 ++++++++++++++++++++---------------------
arch/x86/kernel/smpboot.c | 4 +-
5 files changed, 47 insertions(+), 44 deletions(-)
Index: linux-2.6-tip/arch/x86/include/asm/i8259.h
===================================================================
--- linux-2.6-tip.orig/arch/x86/include/asm/i8259.h
+++ linux-2.6-tip/arch/x86/include/asm/i8259.h
@@ -55,6 +55,8 @@ extern struct irq_chip i8259A_chip;
struct legacy_pic {
int nr_legacy_irqs;
struct irq_chip *chip;
+ void (*mask)(unsigned int irq);
+ void (*unmask)(unsigned int irq);
void (*mask_all)(void);
void (*restore_mask)(void);
void (*init)(int auto_eoi);
Index: linux-2.6-tip/arch/x86/kernel/apic/io_apic.c
===================================================================
--- linux-2.6-tip.orig/arch/x86/kernel/apic/io_apic.c
+++ linux-2.6-tip/arch/x86/kernel/apic/io_apic.c
@@ -1474,7 +1474,7 @@ static void setup_IO_APIC_irq(int apic_i
ioapic_register_intr(irq, desc, trigger);
if (irq < legacy_pic->nr_legacy_irqs)
- legacy_pic->chip->mask(irq);
+ legacy_pic->mask(irq);
ioapic_write_entry(apic_id, pin, entry);
}
@@ -2248,7 +2248,7 @@ static unsigned int startup_ioapic_irq(u
raw_spin_lock_irqsave(&ioapic_lock, flags);
if (irq < legacy_pic->nr_legacy_irqs) {
- legacy_pic->chip->mask(irq);
+ legacy_pic->mask(irq);
if (legacy_pic->irq_pending(irq))
was_pending = 1;
}
@@ -2943,7 +2943,7 @@ static inline void __init check_timer(vo
/*
* get/set the timer IRQ vector:
*/
- legacy_pic->chip->mask(0);
+ legacy_pic->mask(0);
assign_irq_vector(0, cfg, apic->target_cpus());
/*
@@ -3015,7 +3015,7 @@ static inline void __init check_timer(vo
if (timer_irq_works()) {
if (nmi_watchdog == NMI_IO_APIC) {
setup_nmi();
- legacy_pic->chip->unmask(0);
+ legacy_pic->unmask(0);
}
if (disable_timer_pin_1 > 0)
clear_IO_APIC_pin(0, pin1);
@@ -3038,14 +3038,14 @@ static inline void __init check_timer(vo
*/
replace_pin_at_irq_node(cfg, node, apic1, pin1, apic2, pin2);
setup_timer_IRQ0_pin(apic2, pin2, cfg->vector);
- legacy_pic->chip->unmask(0);
+ legacy_pic->unmask(0);
if (timer_irq_works()) {
apic_printk(APIC_QUIET, KERN_INFO "....... works.\n");
timer_through_8259 = 1;
if (nmi_watchdog == NMI_IO_APIC) {
- legacy_pic->chip->mask(0);
+ legacy_pic->mask(0);
setup_nmi();
- legacy_pic->chip->unmask(0);
+ legacy_pic->unmask(0);
}
goto out;
}
@@ -3053,7 +3053,7 @@ static inline void __init check_timer(vo
* Cleanup, just in case ...
*/
local_irq_disable();
- legacy_pic->chip->mask(0);
+ legacy_pic->mask(0);
clear_IO_APIC_pin(apic2, pin2);
apic_printk(APIC_QUIET, KERN_INFO "....... failed.\n");
}
@@ -3072,14 +3072,14 @@ static inline void __init check_timer(vo
lapic_register_intr(0, desc);
apic_write(APIC_LVT0, APIC_DM_FIXED | cfg->vector); /* Fixed mode */
- legacy_pic->chip->unmask(0);
+ legacy_pic->unmask(0);
if (timer_irq_works()) {
apic_printk(APIC_QUIET, KERN_INFO "..... works.\n");
goto out;
}
local_irq_disable();
- legacy_pic->chip->mask(0);
+ legacy_pic->mask(0);
apic_write(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_FIXED | cfg->vector);
apic_printk(APIC_QUIET, KERN_INFO "..... failed.\n");
Index: linux-2.6-tip/arch/x86/kernel/apic/nmi.c
===================================================================
--- linux-2.6-tip.orig/arch/x86/kernel/apic/nmi.c
+++ linux-2.6-tip/arch/x86/kernel/apic/nmi.c
@@ -178,7 +178,7 @@ int __init check_nmi_watchdog(void)
error:
if (nmi_watchdog == NMI_IO_APIC) {
if (!timer_through_8259)
- legacy_pic->chip->mask(0);
+ legacy_pic->mask(0);
on_each_cpu(__acpi_nmi_disable, NULL, 1);
}
Index: linux-2.6-tip/arch/x86/kernel/i8259.c
===================================================================
--- linux-2.6-tip.orig/arch/x86/kernel/i8259.c
+++ linux-2.6-tip/arch/x86/kernel/i8259.c
@@ -29,24 +29,10 @@
* plus some generic x86 specific things if generic specifics makes
* any sense at all.
*/
+static void init_8259A(int auto_eoi);
static int i8259A_auto_eoi;
DEFINE_RAW_SPINLOCK(i8259A_lock);
-static void mask_and_ack_8259A(unsigned int);
-static void mask_8259A(void);
-static void unmask_8259A(void);
-static void disable_8259A_irq(unsigned int irq);
-static void enable_8259A_irq(unsigned int irq);
-static void init_8259A(int auto_eoi);
-static int i8259A_irq_pending(unsigned int irq);
-
-struct irq_chip i8259A_chip = {
- .name = "XT-PIC",
- .mask = disable_8259A_irq,
- .disable = disable_8259A_irq,
- .unmask = enable_8259A_irq,
- .mask_ack = mask_and_ack_8259A,
-};
/*
* 8259A PIC functions to handle ISA devices:
@@ -68,7 +54,7 @@ unsigned int cached_irq_mask = 0xffff;
*/
unsigned long io_apic_irqs;
-static void disable_8259A_irq(unsigned int irq)
+static void mask_8259A_irq(unsigned int irq)
{
unsigned int mask = 1 << irq;
unsigned long flags;
@@ -82,7 +68,12 @@ static void disable_8259A_irq(unsigned i
raw_spin_unlock_irqrestore(&i8259A_lock, flags);
}
-static void enable_8259A_irq(unsigned int irq)
+static void disable_8259A_irq(struct irq_data *data)
+{
+ mask_8259A_irq(data->irq);
+}
+
+static void unmask_8259A_irq(unsigned int irq)
{
unsigned int mask = ~(1 << irq);
unsigned long flags;
@@ -96,6 +87,11 @@ static void enable_8259A_irq(unsigned in
raw_spin_unlock_irqrestore(&i8259A_lock, flags);
}
+static void enable_8259A_irq(struct irq_data *data)
+{
+ unmask_8259A_irq(data->irq);
+}
+
static int i8259A_irq_pending(unsigned int irq)
{
unsigned int mask = 1<<irq;
@@ -117,7 +113,7 @@ static void make_8259A_irq(unsigned int
disable_irq_nosync(irq);
io_apic_irqs &= ~(1<<irq);
set_irq_chip_and_handler_name(irq, &i8259A_chip, handle_level_irq,
- "XT");
+ i8259A_chip.name);
enable_irq(irq);
}
@@ -150,8 +146,9 @@ static inline int i8259A_irq_real(unsign
* first, _then_ send the EOI, and the order of EOI
* to the two 8259s is important!
*/
-static void mask_and_ack_8259A(unsigned int irq)
+static void mask_and_ack_8259A(struct irq_data *data)
{
+ unsigned int irq = data->irq;
unsigned int irqmask = 1 << irq;
unsigned long flags;
@@ -223,6 +220,14 @@ spurious_8259A_irq:
}
}
+struct irq_chip i8259A_chip = {
+ .name = "XT-PIC",
+ .irq_mask = disable_8259A_irq,
+ .irq_disable = disable_8259A_irq,
+ .irq_unmask = enable_8259A_irq,
+ .irq_mask_ack = mask_and_ack_8259A,
+};
+
static char irq_trigger[2];
/**
* ELCR registers (0x4d0, 0x4d1) control edge/level of IRQ
@@ -342,9 +347,9 @@ static void init_8259A(int auto_eoi)
* In AEOI mode we just have to mask the interrupt
* when acking.
*/
- i8259A_chip.mask_ack = disable_8259A_irq;
+ i8259A_chip.irq_mask_ack = disable_8259A_irq;
else
- i8259A_chip.mask_ack = mask_and_ack_8259A;
+ i8259A_chip.irq_mask_ack = mask_and_ack_8259A;
udelay(100); /* wait for 8259A to initialize */
@@ -363,14 +368,6 @@ static void init_8259A(int auto_eoi)
static void legacy_pic_noop(void) { };
static void legacy_pic_uint_noop(unsigned int unused) { };
static void legacy_pic_int_noop(int unused) { };
-
-static struct irq_chip dummy_pic_chip = {
- .name = "dummy pic",
- .mask = legacy_pic_uint_noop,
- .unmask = legacy_pic_uint_noop,
- .disable = legacy_pic_uint_noop,
- .mask_ack = legacy_pic_uint_noop,
-};
static int legacy_pic_irq_pending_noop(unsigned int irq)
{
return 0;
@@ -378,7 +375,9 @@ static int legacy_pic_irq_pending_noop(u
struct legacy_pic null_legacy_pic = {
.nr_legacy_irqs = 0,
- .chip = &dummy_pic_chip,
+ .chip = &dummy_irq_chip,
+ .mask = legacy_pic_uint_noop,
+ .unmask = legacy_pic_uint_noop,
.mask_all = legacy_pic_noop,
.restore_mask = legacy_pic_noop,
.init = legacy_pic_int_noop,
@@ -389,7 +388,9 @@ struct legacy_pic null_legacy_pic = {
struct legacy_pic default_legacy_pic = {
.nr_legacy_irqs = NR_IRQS_LEGACY,
.chip = &i8259A_chip,
- .mask_all = mask_8259A,
+ .mask = mask_8259A_irq,
+ .unmask = unmask_8259A_irq,
+ .mask_all = mask_8259A,
.restore_mask = unmask_8259A,
.init = init_8259A,
.irq_pending = i8259A_irq_pending,
Index: linux-2.6-tip/arch/x86/kernel/smpboot.c
===================================================================
--- linux-2.6-tip.orig/arch/x86/kernel/smpboot.c
+++ linux-2.6-tip/arch/x86/kernel/smpboot.c
@@ -324,9 +324,9 @@ notrace static void __cpuinit start_seco
check_tsc_sync_target();
if (nmi_watchdog == NMI_IO_APIC) {
- legacy_pic->chip->mask(0);
+ legacy_pic->mask(0);
enable_NMI_through_LVT0();
- legacy_pic->chip->unmask(0);
+ legacy_pic->unmask(0);
}
/* This must be done before setting cpu_online_mask */
next prev parent reply other threads:[~2010-09-30 23:16 UTC|newest]
Thread overview: 158+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-30 23:14 [patch 00/47] Sparse irq rework Thomas Gleixner
2010-09-30 23:14 ` [patch 01/47] x86: Plug memory leak in sparse irq Thomas Gleixner
2010-09-30 23:14 ` [patch 02/47] x86: Hpet: Fix bogus error check in hpet_assign_irq() Thomas Gleixner
2010-09-30 23:14 ` Thomas Gleixner
2010-09-30 23:14 ` [patch 03/47] genirq: Provide status modifier Thomas Gleixner
2010-09-30 23:14 ` Thomas Gleixner
2010-09-30 23:14 ` [patch 04/47] arm: Use irq " Thomas Gleixner
2010-09-30 23:14 ` Thomas Gleixner
2010-09-30 23:14 ` [patch 05/47] genirq-sanitize-irq-data-accessors.patch Thomas Gleixner
2010-09-30 23:14 ` Thomas Gleixner
2010-09-30 23:15 ` [patch 06/47] genirq: Distangle kernel/irq/handle.c Thomas Gleixner
2010-09-30 23:15 ` Thomas Gleixner
2010-09-30 23:15 ` [patch 07/47] genirq: Remove early_init_irq_lock_class() Thomas Gleixner
2010-09-30 23:15 ` Thomas Gleixner
2010-09-30 23:15 ` [patch 08/47] genirq: Move core only inlines to kernel/irq Thomas Gleixner
2010-09-30 23:15 ` [patch 09/47] isdn: hisax: Replace the bogus access to irq stats Thomas Gleixner
2010-09-30 23:15 ` Thomas Gleixner
2010-09-30 23:15 ` [patch 10/47] genirq: Remove export of kstat_irqs_cpu Thomas Gleixner
2010-09-30 23:15 ` [patch 11/47] genirq: Provide default irq init flags Thomas Gleixner
2010-09-30 23:15 ` Thomas Gleixner
2010-09-30 23:15 ` [patch 12/47] arm: Use ARCH_IRQ_INIT_FLAGS Thomas Gleixner
2010-09-30 23:15 ` [patch 13/47] powerpc: " Thomas Gleixner
2010-09-30 23:15 ` Thomas Gleixner
2010-09-30 23:15 ` [patch 14/47] genirq: Implement a sane sparse_irq allocator Thomas Gleixner
2010-09-30 23:15 ` Thomas Gleixner
2010-10-01 5:28 ` Yinghai Lu
2010-10-01 20:36 ` Thomas Gleixner
2010-09-30 23:15 ` [patch 15/47] genirq: Prepare proc for real sparse irq support Thomas Gleixner
2010-09-30 23:15 ` [patch 16/47] genirq: Implement sane enumeration Thomas Gleixner
2010-09-30 23:15 ` Thomas Gleixner
2010-10-03 10:55 ` Grant Likely
2010-09-30 23:15 ` [patch 17/47] genirq-update-kerneldoc.patch Thomas Gleixner
2010-09-30 23:15 ` Thomas Gleixner
2010-09-30 23:16 ` [patch 18/47] genirq: Use sane sparse allocator Thomas Gleixner
2010-09-30 23:16 ` Thomas Gleixner
2010-09-30 23:16 ` [patch 19/47] genirq: Query arch for number of early descriptors Thomas Gleixner
2010-09-30 23:16 ` Thomas Gleixner
2010-09-30 23:16 ` [patch 20/47] x86: Remove useless reinitialization of irq descriptors Thomas Gleixner
2010-09-30 23:16 ` Thomas Gleixner
2010-10-03 15:21 ` Eric W. Biederman
2010-10-03 18:26 ` Thomas Gleixner
2010-09-30 23:16 ` [patch 21/47] x86: Sanitize apb timer interrupt handling Thomas Gleixner
2010-09-30 23:16 ` Thomas Gleixner
2010-09-30 23:16 ` [patch 22/47] x86: lguest: Convert to new irq chip functions Thomas Gleixner
2010-09-30 23:16 ` [patch 23/47] x86: Cleanup visws interrupt handling Thomas Gleixner
2010-09-30 23:16 ` Thomas Gleixner
2010-09-30 23:16 ` Thomas Gleixner [this message]
2010-09-30 23:16 ` [patch 24/47] x86: i8259: Convert to new irq_chip functions Thomas Gleixner
2010-09-30 23:16 ` [patch 25/47] x86: Cleanup io_apic Thomas Gleixner
2010-09-30 23:16 ` [patch 26/47] x86: io_apic: Convert startup to new irq_chip function Thomas Gleixner
2010-09-30 23:16 ` Thomas Gleixner
2010-09-30 23:16 ` [patch 27/47] x86: ioapic: Convert mask " Thomas Gleixner
2010-09-30 23:16 ` [patch 28/47] x86: ioapic/hpet: Convert to new chip functions Thomas Gleixner
2010-09-30 23:16 ` Thomas Gleixner
2010-09-30 23:16 ` [patch 29/47] pci: Convert msi to new irq_chip functions Thomas Gleixner
2010-09-30 23:16 ` Thomas Gleixner
2010-10-11 17:09 ` Jesse Barnes
2010-10-11 17:09 ` Jesse Barnes
2010-09-30 23:16 ` [patch 30/47] dmar: Convert to new irq chip functions Thomas Gleixner
2010-09-30 23:17 ` [patch 31/47] ht: Convert to new irq_chip functions Thomas Gleixner
2010-09-30 23:17 ` Thomas Gleixner
2010-09-30 23:17 ` [patch 32/47] x86: ioapic: Clean up the direct access to irq_desc Thomas Gleixner
2010-09-30 23:17 ` Thomas Gleixner
2010-09-30 23:17 ` [patch 33/47] pci: Cleanup the irq_desc mess in msi Thomas Gleixner
2010-10-11 17:08 ` Jesse Barnes
2010-10-11 17:08 ` Jesse Barnes
2010-09-30 23:17 ` [patch 34/47] x86: ioapic: Convert irq affinity to new chip functions Thomas Gleixner
2010-09-30 23:17 ` [patch 35/47] x86: ioapic: Cleanup some more Thomas Gleixner
2010-09-30 23:17 ` [patch 36/47] x86: ioapic: Cleanup sparse irq code Thomas Gleixner
2010-09-30 23:17 ` Thomas Gleixner
2010-09-30 23:17 ` [patch 37/47] x86: uv: Clean up the direct access to irq_desc Thomas Gleixner
2010-09-30 23:17 ` [patch 38/47] x86: Use sane enumeration Thomas Gleixner
2010-09-30 23:17 ` [patch 39/47] genirq: Remove arch_init_chip_data() Thomas Gleixner
2010-09-30 23:17 ` [patch 40/47] genirq: Sanitize dynamic irq handling Thomas Gleixner
2010-09-30 23:17 ` Thomas Gleixner
2010-10-01 5:47 ` Yinghai Lu
2010-09-30 23:18 ` [patch 41/47] arm: davinci: Cleanup irq_desc access Thomas Gleixner
2010-09-30 23:18 ` Thomas Gleixner
2010-09-30 23:18 ` [patch 42/47] genirq: Remove the now unused sparse irq leftovers Thomas Gleixner
2010-09-30 23:18 ` Thomas Gleixner
2010-09-30 23:18 ` [patch 43/47] x86: xen: Sanitise sparse_irq handling Thomas Gleixner
2010-09-30 23:18 ` Thomas Gleixner
2010-09-30 23:18 ` [patch 44/47] sh: Sanitize sparse irq Thomas Gleixner
2010-09-30 23:18 ` [patch 45/47] x86: lguest: Use new irq allocator Thomas Gleixner
2010-09-30 23:18 ` Thomas Gleixner
2010-09-30 23:18 ` [patch 46/47] powerpc: " Thomas Gleixner
2010-09-30 23:18 ` Thomas Gleixner
2010-10-01 0:42 ` Benjamin Herrenschmidt
2010-10-01 13:07 ` Thomas Gleixner
2010-10-01 20:46 ` Benjamin Herrenschmidt
2010-10-01 21:11 ` Grant Likely
2010-10-01 21:17 ` Benjamin Herrenschmidt
2010-10-03 16:53 ` Eric W. Biederman
2010-10-03 16:53 ` Eric W. Biederman
2010-10-03 18:34 ` Thomas Gleixner
2010-10-03 20:04 ` Thomas Gleixner
2010-10-03 22:54 ` Benjamin Herrenschmidt
2010-10-03 22:54 ` Benjamin Herrenschmidt
2010-10-04 0:15 ` Eric W. Biederman
2010-10-04 0:37 ` Benjamin Herrenschmidt
2010-10-04 16:46 ` Grant Likely
2010-09-30 23:18 ` [patch 47/47] genirq: Remove the old sparse irq allocator function Thomas Gleixner
2010-09-30 23:18 ` Thomas Gleixner
2010-10-01 3:32 ` [patch 00/47] Sparse irq rework Linus Torvalds
2010-10-01 3:32 ` Linus Torvalds
2010-10-01 5:54 ` Yinghai Lu
2010-10-01 5:54 ` Yinghai Lu
2010-10-01 20:35 ` Thomas Gleixner
2010-10-03 11:23 ` Grant Likely
2010-10-03 11:29 ` Russell King - ARM Linux
2010-10-03 11:29 ` Russell King - ARM Linux
2010-10-03 11:57 ` Grant Likely
2010-10-03 13:48 ` Thomas Gleixner
2010-10-05 10:22 ` Thomas Gleixner
2010-10-05 10:22 ` Thomas Gleixner
2010-10-06 22:45 ` Yinghai Lu
2010-10-06 22:52 ` Thomas Gleixner
2010-10-06 23:37 ` Yinghai Lu
2010-10-07 0:16 ` Yinghai Lu
2010-10-07 4:01 ` Thomas Gleixner
2010-10-07 4:38 ` Yinghai Lu
2010-10-08 21:50 ` Thomas Gleixner
2010-10-08 21:54 ` Thomas Gleixner
2010-10-09 4:26 ` Yinghai Lu
2010-10-09 5:44 ` Yinghai Lu
2010-10-09 6:34 ` Thomas Gleixner
2010-10-09 7:08 ` Yinghai Lu
2010-10-09 7:08 ` Yinghai Lu
2010-10-09 12:08 ` Thomas Gleixner
2010-10-10 9:32 ` Thomas Gleixner
2010-10-10 9:32 ` Thomas Gleixner
2010-10-10 13:30 ` Anca Emanuel
2010-10-11 2:20 ` Yinghai Lu
2010-10-11 2:20 ` Yinghai Lu
2010-10-11 3:50 ` Yinghai Lu
2010-10-11 3:50 ` Yinghai Lu
2010-10-11 8:16 ` Thomas Gleixner
2010-10-11 11:34 ` Benjamin Herrenschmidt
2010-10-11 16:19 ` Yinghai Lu
2010-10-11 16:19 ` Yinghai Lu
2010-10-09 6:10 ` Thomas Gleixner
2010-10-09 7:03 ` Yinghai Lu
2010-10-09 12:12 ` Thomas Gleixner
2010-10-10 2:32 ` Yinghai Lu
2010-10-10 2:32 ` Yinghai Lu
2010-10-10 5:11 ` Yinghai Lu
2010-10-10 5:11 ` Yinghai Lu
2010-10-10 8:20 ` Thomas Gleixner
2010-10-03 16:41 ` Eric W. Biederman
2010-10-03 16:41 ` Eric W. Biederman
2010-10-03 19:16 ` Thomas Gleixner
2010-10-03 22:57 ` Benjamin Herrenschmidt
2010-10-04 16:31 ` Grant Likely
2010-10-04 0:49 ` Eric W. Biederman
2010-10-04 8:05 ` Thomas Gleixner
2010-10-04 1:13 ` Eric W. Biederman
2010-10-04 1:13 ` Eric W. Biederman
2010-10-04 6:36 ` Ingo Molnar
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