From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Grant Likely <grant.likely@secretlab.ca>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
devicetree-discuss@lists.ozlabs.org,
linux-kernel@vger.kernel.org,
Rob Herring <rob.herring@calxeda.com>,
Milton Miller <miltonm@bga.com>,
Thomas Gleixner <tglx@linutronix.de>,
linuxppc-dev@lists.ozlabs.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 22/25] irq_domain/x86: Convert x86 (embedded) to use common irq_domain
Date: Sat, 28 Jan 2012 17:44:05 +0100 [thread overview]
Message-ID: <20120128164405.GA20763@linutronix.de> (raw)
In-Reply-To: <1327700179-17454-23-git-send-email-grant.likely@secretlab.ca>
* Grant Likely | 2012-01-27 14:36:16 [-0700]:
>This patch removes the x86-specific definition of irq_domain and replaces
>it with the common implementation.
I pulled your devicetree/next tree. After this patch I get:
|Hierarchical RCU implementation.
|NR_IRQS:2304 nr_irqs:256 16
|------------[ cut here ]------------
|WARNING: at /home/bigeasy/work/shiva/git/linux-2.6-tip/kernel/irq/irqdomain.c:114 irq_domain_add_legacy+0x75/0x150()
|Modules linked in:
|Pid: 0, comm: swapper/0 Not tainted 3.3.0-rc1+ #65
|Call Trace:
| [<c15044e0>] ? printk+0x18/0x1a
| [<c102cdbd>] warn_slowpath_common+0x6d/0xa0
| [<c1095575>] ? irq_domain_add_legacy+0x75/0x150
| [<c1095575>] ? irq_domain_add_legacy+0x75/0x150
| [<c102ce0d>] warn_slowpath_null+0x1d/0x20
| [<c1095575>] irq_domain_add_legacy+0x75/0x150
| [<c1714824>] x86_add_irq_domains+0x96/0xd6
| [<c1708df2>] init_IRQ+0x8/0x33
| [<c170557f>] start_kernel+0x191/0x2e1
| [<c170517f>] ? loglevel+0x2b/0x2b
| [<c1705081>] i386_start_kernel+0x81/0x86
|---[ end trace 4eaa2a86a8e2da22 ]---
|------------[ cut here ]------------
|kernel BUG at /home/bigeasy/work/shiva/git/linux-2.6-tip/arch/x86/kernel/devicetree.c:367!
The warning is comming from this piece in irq_domain_add_legacy()
|for (i = 0; i < size; i++) {
| int irq = first_irq + i;
| struct irq_data *irq_data = irq_get_irq_data(irq);
|
| if (WARN_ON(!irq_data || irq_data->domain)) {
irq_data is NULL here.
| mutex_unlock(&irq_domain_mutex);
| of_node_put(domain->of_node);
| kfree(domain);
| return NULL;
| }
| }
|
This is not always the case. arch_early_irq_init() in [0] sets up the
first 16 entries. The reminaing few (there is a toal of 24 irqs for
first ioapic and a second ioapic) are not initialized. This happens
later via ->xlate, ioapic_xlate() => io_apic_setup_irq_pin() =>
alloc_irq_and_cfg_at() calls irq_set_chip_data() on demand.
[0] arch/x86/kernel/apic/io_apic.c
Sebastian
WARNING: multiple messages have this Message-ID (diff)
From: bigeasy@linutronix.de (Sebastian Andrzej Siewior)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 22/25] irq_domain/x86: Convert x86 (embedded) to use common irq_domain
Date: Sat, 28 Jan 2012 17:44:05 +0100 [thread overview]
Message-ID: <20120128164405.GA20763@linutronix.de> (raw)
In-Reply-To: <1327700179-17454-23-git-send-email-grant.likely@secretlab.ca>
* Grant Likely | 2012-01-27 14:36:16 [-0700]:
>This patch removes the x86-specific definition of irq_domain and replaces
>it with the common implementation.
I pulled your devicetree/next tree. After this patch I get:
|Hierarchical RCU implementation.
|NR_IRQS:2304 nr_irqs:256 16
|------------[ cut here ]------------
|WARNING: at /home/bigeasy/work/shiva/git/linux-2.6-tip/kernel/irq/irqdomain.c:114 irq_domain_add_legacy+0x75/0x150()
|Modules linked in:
|Pid: 0, comm: swapper/0 Not tainted 3.3.0-rc1+ #65
|Call Trace:
| [<c15044e0>] ? printk+0x18/0x1a
| [<c102cdbd>] warn_slowpath_common+0x6d/0xa0
| [<c1095575>] ? irq_domain_add_legacy+0x75/0x150
| [<c1095575>] ? irq_domain_add_legacy+0x75/0x150
| [<c102ce0d>] warn_slowpath_null+0x1d/0x20
| [<c1095575>] irq_domain_add_legacy+0x75/0x150
| [<c1714824>] x86_add_irq_domains+0x96/0xd6
| [<c1708df2>] init_IRQ+0x8/0x33
| [<c170557f>] start_kernel+0x191/0x2e1
| [<c170517f>] ? loglevel+0x2b/0x2b
| [<c1705081>] i386_start_kernel+0x81/0x86
|---[ end trace 4eaa2a86a8e2da22 ]---
|------------[ cut here ]------------
|kernel BUG at /home/bigeasy/work/shiva/git/linux-2.6-tip/arch/x86/kernel/devicetree.c:367!
The warning is comming from this piece in irq_domain_add_legacy()
|for (i = 0; i < size; i++) {
| int irq = first_irq + i;
| struct irq_data *irq_data = irq_get_irq_data(irq);
|
| if (WARN_ON(!irq_data || irq_data->domain)) {
irq_data is NULL here.
| mutex_unlock(&irq_domain_mutex);
| of_node_put(domain->of_node);
| kfree(domain);
| return NULL;
| }
| }
|
This is not always the case. arch_early_irq_init() in [0] sets up the
first 16 entries. The reminaing few (there is a toal of 24 irqs for
first ioapic and a second ioapic) are not initialized. This happens
later via ->xlate, ioapic_xlate() => io_apic_setup_irq_pin() =>
alloc_irq_and_cfg_at() calls irq_set_chip_data() on demand.
[0] arch/x86/kernel/apic/io_apic.c
Sebastian
WARNING: multiple messages have this Message-ID (diff)
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Grant Likely <grant.likely@secretlab.ca>
Cc: linux-kernel@vger.kernel.org,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Thomas Gleixner <tglx@linutronix.de>,
Milton Miller <miltonm@bga.com>,
Rob Herring <rob.herring@calxeda.com>,
Stephen Rothwell <sfr@canb.auug.org.au>,
devicetree-discuss@lists.ozlabs.org,
linux-arm-kernel@lists.infradead.org,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v3 22/25] irq_domain/x86: Convert x86 (embedded) to use common irq_domain
Date: Sat, 28 Jan 2012 17:44:05 +0100 [thread overview]
Message-ID: <20120128164405.GA20763@linutronix.de> (raw)
In-Reply-To: <1327700179-17454-23-git-send-email-grant.likely@secretlab.ca>
* Grant Likely | 2012-01-27 14:36:16 [-0700]:
>This patch removes the x86-specific definition of irq_domain and replaces
>it with the common implementation.
I pulled your devicetree/next tree. After this patch I get:
|Hierarchical RCU implementation.
|NR_IRQS:2304 nr_irqs:256 16
|------------[ cut here ]------------
|WARNING: at /home/bigeasy/work/shiva/git/linux-2.6-tip/kernel/irq/irqdomain.c:114 irq_domain_add_legacy+0x75/0x150()
|Modules linked in:
|Pid: 0, comm: swapper/0 Not tainted 3.3.0-rc1+ #65
|Call Trace:
| [<c15044e0>] ? printk+0x18/0x1a
| [<c102cdbd>] warn_slowpath_common+0x6d/0xa0
| [<c1095575>] ? irq_domain_add_legacy+0x75/0x150
| [<c1095575>] ? irq_domain_add_legacy+0x75/0x150
| [<c102ce0d>] warn_slowpath_null+0x1d/0x20
| [<c1095575>] irq_domain_add_legacy+0x75/0x150
| [<c1714824>] x86_add_irq_domains+0x96/0xd6
| [<c1708df2>] init_IRQ+0x8/0x33
| [<c170557f>] start_kernel+0x191/0x2e1
| [<c170517f>] ? loglevel+0x2b/0x2b
| [<c1705081>] i386_start_kernel+0x81/0x86
|---[ end trace 4eaa2a86a8e2da22 ]---
|------------[ cut here ]------------
|kernel BUG at /home/bigeasy/work/shiva/git/linux-2.6-tip/arch/x86/kernel/devicetree.c:367!
The warning is comming from this piece in irq_domain_add_legacy()
|for (i = 0; i < size; i++) {
| int irq = first_irq + i;
| struct irq_data *irq_data = irq_get_irq_data(irq);
|
| if (WARN_ON(!irq_data || irq_data->domain)) {
irq_data is NULL here.
| mutex_unlock(&irq_domain_mutex);
| of_node_put(domain->of_node);
| kfree(domain);
| return NULL;
| }
| }
|
This is not always the case. arch_early_irq_init() in [0] sets up the
first 16 entries. The reminaing few (there is a toal of 24 irqs for
first ioapic and a second ioapic) are not initialized. This happens
later via ->xlate, ioapic_xlate() => io_apic_setup_irq_pin() =>
alloc_irq_and_cfg_at() calls irq_set_chip_data() on demand.
[0] arch/x86/kernel/apic/io_apic.c
Sebastian
next prev parent reply other threads:[~2012-01-28 17:09 UTC|newest]
Thread overview: 224+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-27 21:35 [PATCH v3 00/25] irq_domain generalization and refinement Grant Likely
2012-01-27 21:35 ` Grant Likely
2012-01-27 21:35 ` Grant Likely
2012-01-27 21:35 ` [PATCH v3 01/25] irq_domain: add documentation and MAINTAINERS entry Grant Likely
2012-01-27 21:35 ` Grant Likely
2012-01-27 21:35 ` Grant Likely
2012-01-27 21:35 ` Grant Likely
2012-01-28 18:23 ` Randy Dunlap
2012-01-28 18:23 ` Randy Dunlap
2012-01-28 18:23 ` Randy Dunlap
2012-01-28 18:23 ` Randy Dunlap
2012-01-28 19:59 ` Grant Likely
2012-01-28 19:59 ` Grant Likely
2012-01-27 21:35 ` [PATCH v3 02/25] dt: Make irqdomain less verbose Grant Likely
2012-01-27 21:35 ` Grant Likely
2012-01-27 21:35 ` Grant Likely
2012-01-27 21:35 ` [PATCH v3 03/25] irq_domain: Make irq_domain structure match powerpc's irq_host Grant Likely
2012-01-27 21:35 ` Grant Likely
2012-01-27 21:35 ` Grant Likely
2012-01-27 21:35 ` Grant Likely
2012-01-27 21:35 ` [PATCH v3 04/25] irq_domain: convert microblaze from irq_host to irq_domain Grant Likely
2012-01-27 21:35 ` Grant Likely
2012-01-27 21:35 ` Grant Likely
2012-01-27 21:35 ` Grant Likely
2012-01-27 21:35 ` [PATCH v3 05/25] irq_domain/powerpc: Use common irq_domain structure instead of irq_host Grant Likely
2012-01-27 21:35 ` Grant Likely
2012-01-27 21:35 ` Grant Likely
2012-01-27 21:35 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 06/25] irq_domain/powerpc: eliminate irq_map; use irq_alloc_desc() instead Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 07/25] irq_domain/powerpc: Eliminate virq_is_host() Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 08/25] irq_domain: Move irq_domain code from powerpc to kernel/irq Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 09/25] irqdomain: remove NO_IRQ from irq domain code Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 10/25] irq_domain: Remove references to old irq_host names Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 11/25] irq_domain: Replace irq_alloc_host() with revmap-specific initializers Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 12/25] irq_domain: Add support for base irq and hwirq in legacy mappings Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 13/25] irq_domain: Remove 'new' irq_domain in favour of the ppc one Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-02-03 14:48 ` Cousson, Benoit
2012-02-03 14:48 ` Cousson, Benoit
2012-02-03 14:48 ` Cousson, Benoit
2012-02-03 14:48 ` Cousson, Benoit
2012-02-03 16:42 ` Grant Likely
2012-02-03 16:42 ` Grant Likely
2012-02-03 16:42 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 14/25] irq_domain: Remove irq_domain_add_simple() Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-31 12:45 ` Shawn Guo
2012-01-31 12:45 ` Shawn Guo
2012-01-31 12:45 ` Shawn Guo
2012-01-31 13:15 ` Rob Herring
2012-01-31 13:15 ` Rob Herring
2012-01-31 13:15 ` Rob Herring
2012-01-31 13:58 ` Shawn Guo
2012-01-31 13:58 ` Shawn Guo
2012-01-31 13:58 ` Shawn Guo
2012-01-31 13:58 ` Shawn Guo
2012-02-01 0:08 ` Grant Likely
2012-02-01 0:08 ` Grant Likely
2012-02-01 0:08 ` Grant Likely
2012-02-01 5:46 ` [PATCH] irq_domain: fix the irq number of imx5 tzic Shawn Guo
2012-02-01 5:46 ` Shawn Guo
2012-02-01 5:46 ` Shawn Guo
2012-02-02 4:58 ` Grant Likely
2012-02-02 4:58 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 15/25] irq_domain: Create common xlate functions that device drivers can use Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 16/25] irq_domain: constify irq_domain_ops Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 17/25] irq_domain/c6x: Convert c6x to use generic irq_domain support Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 18/25] irq_domain/c6x: constify irq_domain structures Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 19/25] irq_domain/c6x: Use library of xlate functions Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 20/25] irq_domain/powerpc: constify irq_domain_ops Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 21/25] irqdomain/powerpc: Replace custom xlate functions with library functions Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-02-06 5:22 ` Michael Neuling
2012-02-06 5:22 ` Michael Neuling
2012-02-06 5:22 ` Michael Neuling
2012-02-06 6:00 ` Grant Likely
2012-02-06 6:00 ` Grant Likely
2012-02-06 6:00 ` Grant Likely
2012-02-06 6:00 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 22/25] irq_domain/x86: Convert x86 (embedded) to use common irq_domain Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-28 16:44 ` Sebastian Andrzej Siewior [this message]
2012-01-28 16:44 ` Sebastian Andrzej Siewior
2012-01-28 16:44 ` Sebastian Andrzej Siewior
2012-01-29 0:35 ` Grant Likely
2012-01-29 0:35 ` Grant Likely
2012-01-29 0:35 ` Grant Likely
2012-01-29 0:35 ` Grant Likely
2012-01-29 0:39 ` Grant Likely
2012-01-29 0:39 ` Grant Likely
2012-01-29 0:39 ` Grant Likely
2012-01-29 0:39 ` Grant Likely
2012-01-30 19:58 ` Grant Likely
2012-01-30 19:58 ` Grant Likely
2012-01-30 19:58 ` Grant Likely
2012-02-01 14:17 ` Sebastian Andrzej Siewior
2012-02-01 14:17 ` Sebastian Andrzej Siewior
2012-02-01 14:17 ` Sebastian Andrzej Siewior
2012-02-01 14:17 ` Sebastian Andrzej Siewior
2012-02-01 18:06 ` Grant Likely
2012-02-01 18:06 ` Grant Likely
2012-02-01 18:06 ` Grant Likely
2012-02-01 18:06 ` Grant Likely
2012-02-23 19:56 ` Grant Likely
2012-02-23 19:56 ` Grant Likely
2012-02-23 19:56 ` Grant Likely
2012-02-23 21:22 ` Sebastian Andrzej Siewior
2012-02-23 21:22 ` Sebastian Andrzej Siewior
2012-02-23 21:22 ` Sebastian Andrzej Siewior
2012-02-23 21:39 ` Grant Likely
2012-02-23 21:39 ` Grant Likely
2012-02-23 21:39 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 23/25] irq_domain: Include hwirq number in /proc/interrupts Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` [PATCH v3 24/25] irq_domain: remove "hint" when allocating irq numbers Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-02-07 18:07 ` Nicolas Ferre
2012-02-07 18:07 ` Nicolas Ferre
2012-02-07 18:07 ` Nicolas Ferre
2012-02-07 18:07 ` Nicolas Ferre
2012-02-15 15:04 ` Nicolas Ferre
2012-02-15 15:04 ` Nicolas Ferre
2012-02-15 20:21 ` Grant Likely
2012-02-15 20:21 ` Grant Likely
2012-02-15 20:21 ` Grant Likely
2012-02-15 21:50 ` Shawn Guo
2012-02-15 21:50 ` Shawn Guo
2012-02-15 21:50 ` Shawn Guo
2012-02-16 5:32 ` Grant Likely
2012-02-16 5:32 ` Grant Likely
2012-02-16 5:32 ` Grant Likely
2012-02-16 6:03 ` Shawn Guo
2012-02-16 6:03 ` Shawn Guo
2012-02-16 6:03 ` Shawn Guo
2012-01-27 21:36 ` [PATCH v3 25/25] irq_domain: mostly eliminate slow-path revmap lookups Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-01-27 21:36 ` Grant Likely
2012-02-15 16:36 ` Nicolas Ferre
2012-02-15 16:36 ` Nicolas Ferre
2012-02-15 16:36 ` Nicolas Ferre
2012-02-15 20:29 ` Grant Likely
2012-02-15 20:29 ` Grant Likely
2012-02-15 20:29 ` Grant Likely
2012-01-28 18:38 ` [PATCH v3 00/25] irq_domain generalization and refinement Rob Herring
2012-01-28 18:38 ` Rob Herring
2012-01-28 18:38 ` Rob Herring
2012-01-28 18:38 ` Rob Herring
2012-01-28 19:10 ` Grant Likely
2012-01-28 19:10 ` Grant Likely
2012-01-31 4:53 ` Olof Johansson
2012-01-31 4:53 ` Olof Johansson
2012-01-31 4:53 ` Olof Johansson
2012-02-01 0:07 ` Grant Likely
2012-02-01 0:07 ` Grant Likely
2012-02-01 0:07 ` Grant Likely
2012-02-04 22:17 ` Russell King - ARM Linux
2012-02-04 22:17 ` Russell King - ARM Linux
2012-02-04 22:17 ` Russell King - ARM Linux
2012-02-04 22:17 ` Russell King - ARM Linux
2012-02-04 22:31 ` Russell King - ARM Linux
2012-02-04 22:31 ` Russell King - ARM Linux
2012-02-04 22:31 ` Russell King - ARM Linux
2012-02-04 22:31 ` Russell King - ARM Linux
2012-02-05 1:38 ` Tony Lindgren
2012-02-05 1:38 ` Tony Lindgren
2012-02-05 1:38 ` Tony Lindgren
2012-02-05 1:38 ` Tony Lindgren
2012-02-05 16:13 ` Russell King - ARM Linux
2012-02-05 16:13 ` Russell King - ARM Linux
2012-02-05 16:13 ` Russell King - ARM Linux
2012-02-05 16:13 ` Russell King - ARM Linux
2012-02-07 15:26 ` Mark Brown
2012-02-07 15:26 ` Mark Brown
2012-02-07 15:26 ` Mark Brown
2012-02-15 20:33 ` Grant Likely
2012-02-15 20:33 ` Grant Likely
2012-02-15 20:33 ` Grant Likely
2012-02-05 0:01 ` Benjamin Herrenschmidt
2012-02-05 0:01 ` Benjamin Herrenschmidt
2012-02-05 0:01 ` Benjamin Herrenschmidt
2012-02-05 0:01 ` Benjamin Herrenschmidt
2012-02-06 0:51 ` Rob Herring
2012-02-06 0:51 ` Rob Herring
2012-02-06 0:51 ` Rob Herring
2012-02-06 0:51 ` Rob Herring
2012-02-06 5:56 ` Grant Likely
2012-02-06 5:56 ` Grant Likely
2012-02-06 5:56 ` Grant Likely
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