* [PATCH] PCI/IO-APIC: allow PCI_IOAPIC to be user configurable on x86
@ 2011-11-29 7:59 Jan Beulich
2011-12-05 19:28 ` Jesse Barnes
0 siblings, 1 reply; 3+ messages in thread
From: Jan Beulich @ 2011-11-29 7:59 UTC (permalink / raw)
To: Jesse Barnes; +Cc: Bjorn Helgaas, linux-pci
This adjusts PCI_IOAPIC to be user configurable (possibly as a module)
on x86, since the base architecture code for adding IO-APICs
dynamically isn't there yet (and hence having the code present
everywhere is pretty pointless).
To make this consistent, a MODULE_DEVICE_TABLE() declaration gets
added, the class specifications get corrected (by properly using
PCI_DEVICE_CLASS() intended for purposes like this), and the probe and
remove functions get their sections adjusted.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
---
drivers/pci/Kconfig | 4 ++--
drivers/pci/ioapic.c | 15 +++++++--------
2 files changed, 9 insertions(+), 10 deletions(-)
--- 3.2-rc3/drivers/pci/Kconfig
+++ 3.2-rc3-pci-ioapic/drivers/pci/Kconfig
@@ -98,11 +98,11 @@ config PCI_PASID
If unsure, say N.
config PCI_IOAPIC
- bool
+ tristate "PCI IO-APIC hotplug support" if X86
depends on PCI
depends on ACPI
depends on HOTPLUG
- default y
+ default !X86
config PCI_LABEL
def_bool y if (DMI || ACPI)
--- 3.2-rc3/drivers/pci/ioapic.c
+++ 3.2-rc3-pci-ioapic/drivers/pci/ioapic.c
@@ -17,7 +17,7 @@
*/
#include <linux/pci.h>
-#include <linux/export.h>
+#include <linux/module.h>
#include <linux/acpi.h>
#include <linux/slab.h>
#include <acpi/acpi_bus.h>
@@ -27,7 +27,7 @@ struct ioapic {
u32 gsi_base;
};
-static int ioapic_probe(struct pci_dev *dev, const struct pci_device_id *ent)
+static int __devinit ioapic_probe(struct pci_dev *dev, const struct pci_device_id *ent)
{
acpi_handle handle;
acpi_status status;
@@ -88,7 +88,7 @@ exit_free:
return -ENODEV;
}
-static void ioapic_remove(struct pci_dev *dev)
+static void __devexit ioapic_remove(struct pci_dev *dev)
{
struct ioapic *ioapic = pci_get_drvdata(dev);
@@ -99,13 +99,12 @@ static void ioapic_remove(struct pci_dev
}
-static struct pci_device_id ioapic_devices[] = {
- { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
- PCI_CLASS_SYSTEM_PIC_IOAPIC << 8, 0xffff00, },
- { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
- PCI_CLASS_SYSTEM_PIC_IOXAPIC << 8, 0xffff00, },
+static DEFINE_PCI_DEVICE_TABLE(ioapic_devices) = {
+ { PCI_DEVICE_CLASS(PCI_CLASS_SYSTEM_PIC_IOAPIC, ~0) },
+ { PCI_DEVICE_CLASS(PCI_CLASS_SYSTEM_PIC_IOXAPIC, ~0) },
{ }
};
+MODULE_DEVICE_TABLE(pci, ioapic_devices);
static struct pci_driver ioapic_driver = {
.name = "ioapic",
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] PCI/IO-APIC: allow PCI_IOAPIC to be user configurable on x86
2011-11-29 7:59 [PATCH] PCI/IO-APIC: allow PCI_IOAPIC to be user configurable on x86 Jan Beulich
@ 2011-12-05 19:28 ` Jesse Barnes
0 siblings, 0 replies; 3+ messages in thread
From: Jesse Barnes @ 2011-12-05 19:28 UTC (permalink / raw)
To: Jan Beulich; +Cc: Bjorn Helgaas, linux-pci
[-- Attachment #1: Type: text/plain, Size: 894 bytes --]
On Tue, 29 Nov 2011 07:59:22 +0000
"Jan Beulich" <JBeulich@suse.com> wrote:
> This adjusts PCI_IOAPIC to be user configurable (possibly as a module)
> on x86, since the base architecture code for adding IO-APICs
> dynamically isn't there yet (and hence having the code present
> everywhere is pretty pointless).
>
> To make this consistent, a MODULE_DEVICE_TABLE() declaration gets
> added, the class specifications get corrected (by properly using
> PCI_DEVICE_CLASS() intended for purposes like this), and the probe and
> remove functions get their sections adjusted.
>
> Signed-off-by: Jan Beulich <jbeulich@suse.com>
> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
>
Oooh, fancy. Should go through the x86 tree though since the APIC code
is really x86 specific (and they're the experts in that anyway).
Thanks,
--
Jesse Barnes, Intel Open Source Technology Center
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^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH] PCI/IO-APIC: allow PCI_IOAPIC to be user configurable on x86
@ 2011-12-06 7:49 Jan Beulich
0 siblings, 0 replies; 3+ messages in thread
From: Jan Beulich @ 2011-12-06 7:49 UTC (permalink / raw)
To: mingo, tglx, hpa; +Cc: bhelgaas, linux-pci, Jesse Barnes
Jesse asked for this to go through the x86 tree, so I'm re-sending it
this way. Also correcting Bjorn's email address.
******************************************************
This adjusts PCI_IOAPIC to be user configurable (possibly as a module)
on x86, since the base architecture code for adding IO-APICs
dynamically isn't there yet (and hence having the code present
everywhere is pretty pointless).
To make this consistent, a MODULE_DEVICE_TABLE() declaration gets
added, the class specifications get corrected (by properly using
PCI_DEVICE_CLASS() intended for purposes like this), and the probe and
remove functions get their sections adjusted.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
---
drivers/pci/Kconfig | 4 ++--
drivers/pci/ioapic.c | 15 +++++++--------
2 files changed, 9 insertions(+), 10 deletions(-)
--- 3.2-rc3/drivers/pci/Kconfig
+++ 3.2-rc3-pci-ioapic/drivers/pci/Kconfig
@@ -98,11 +98,11 @@ config PCI_PASID
If unsure, say N.
config PCI_IOAPIC
- bool
+ tristate "PCI IO-APIC hotplug support" if X86
depends on PCI
depends on ACPI
depends on HOTPLUG
- default y
+ default !X86
config PCI_LABEL
def_bool y if (DMI || ACPI)
--- 3.2-rc3/drivers/pci/ioapic.c
+++ 3.2-rc3-pci-ioapic/drivers/pci/ioapic.c
@@ -17,7 +17,7 @@
*/
#include <linux/pci.h>
-#include <linux/export.h>
+#include <linux/module.h>
#include <linux/acpi.h>
#include <linux/slab.h>
#include <acpi/acpi_bus.h>
@@ -27,7 +27,7 @@ struct ioapic {
u32 gsi_base;
};
-static int ioapic_probe(struct pci_dev *dev, const struct pci_device_id *ent)
+static int __devinit ioapic_probe(struct pci_dev *dev, const struct pci_device_id *ent)
{
acpi_handle handle;
acpi_status status;
@@ -88,7 +88,7 @@ exit_free:
return -ENODEV;
}
-static void ioapic_remove(struct pci_dev *dev)
+static void __devexit ioapic_remove(struct pci_dev *dev)
{
struct ioapic *ioapic = pci_get_drvdata(dev);
@@ -99,13 +99,12 @@ static void ioapic_remove(struct pci_dev
}
-static struct pci_device_id ioapic_devices[] = {
- { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
- PCI_CLASS_SYSTEM_PIC_IOAPIC << 8, 0xffff00, },
- { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
- PCI_CLASS_SYSTEM_PIC_IOXAPIC << 8, 0xffff00, },
+static DEFINE_PCI_DEVICE_TABLE(ioapic_devices) = {
+ { PCI_DEVICE_CLASS(PCI_CLASS_SYSTEM_PIC_IOAPIC, ~0) },
+ { PCI_DEVICE_CLASS(PCI_CLASS_SYSTEM_PIC_IOXAPIC, ~0) },
{ }
};
+MODULE_DEVICE_TABLE(pci, ioapic_devices);
static struct pci_driver ioapic_driver = {
.name = "ioapic",
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2011-12-06 7:48 UTC | newest]
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2011-11-29 7:59 [PATCH] PCI/IO-APIC: allow PCI_IOAPIC to be user configurable on x86 Jan Beulich
2011-12-05 19:28 ` Jesse Barnes
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2011-12-06 7:49 Jan Beulich
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