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Commit Graph

11 Commits

Author SHA1 Message Date
Kristen Carlson Accardi
0dcb2b7e72 pci: clear osc support flags if no _OSC method
So it looks like pci aer code will call pci_osc_support_set to tell the
firmware about  OSC_EXT_PCI_CONFIG_SUPPORT flag.  that causes
ctrlset_buf[OSC_SUPPORT_TYPE] to evaluate to true when pciehp calls
pci_osc_control_set() is called (to attempt to use OSC to gain native
pcie control from firmware), regardless of whether or not _OSC was
actually successfully executed.  That causes this section of code:
 if (ctrlset_buf[OSC_SUPPORT_TYPE] &&
                ((global_ctrlsets & ctrlset) != ctrlset)) {
                return AE_SUPPORT;
        }
to be hit.

This patch will reset the OSC_SUPPORT_TYPE field if _OSC fails, and then
would allow pciehp to go ahead and try to run _OSC again.

Signed-off-by:  Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-01 14:36:58 -08:00
Muthu Kumar
9c273b9580 [PATCH] PCI ACPI: Rename the functions to avoid multiple instances.
There were two instances of pci_acpi_init(), one in
drivers/pci/pci-acpi.c and another in arch/i386/pci/acpi.c.
Rename the one in pci-acpi.c and make it consistent with
other names in the same file.

Signed-off-by: Muthukumar R <muthur@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-21 11:59:59 -07:00
Kristen Accardi
593ee20766 [PATCH] pci: correctly allocate return buffers for osc calls
The OSC set and query functions do not allocate enough space for return
values, and set the output buffer length to a false, too large value.  This
causes the acpi-ca code to assume that the output buffer is larger than it
actually is, and overwrite memory when copying acpi return buffers into
this caller provided buffer.  In some cases this can cause kernel oops if
the memory that is overwritten is a pointer.  This patch will change these
calls to use a dynamically allocated output buffer, thus allowing the
acpi-ca code to decide how much space is needed.

Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Cc: "Brown, Len" <len.brown@intel.com>
Cc: "Yu, Luming" <luming.yu@intel.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-21 12:59:18 -07:00
Randy Dunlap
f366633fc3 [PATCH] PCI: kernel-doc fix for pci-acpi.c
Fix kernel-doc warning in pci/pci-acpi.c.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-23 23:04:27 -08:00
rajesh.shah@intel.com
427bf532b5 [PATCH] pciehp: request control of each hotplug controller individually
This patch tweaks the way pciehp requests control of the hotplug
hardware from BIOS. It now tries to invoke the ACPI _OSC method
for a specific hotplug controller only, rather than walking the
entire acpi namespace invoking all possible _OSC methods under
all host bridges. This allows us to gain control of each hotplug
controller individually, even if BIOS fails to give us control of
some other hotplug controller in the system.

Signed-off-by: Rajesh Shah <rajesh.shah@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-11-10 16:09:15 -08:00
Len Brown
a406d9e63e [ACPI] gut acpi_pci_choose_state() to avoid conflict
with pending pm_message_t re-definition.

Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-11 23:54:14 -04:00
David Shaohua Li
b913100d73 [ACPI] pci_set_power_state() now calls
platform_pci_set_power_state()
		and ACPI can answer

http://bugzilla.kernel.org/show_bug.cgi?id=4277

Signed-off-by: David Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-11 23:47:06 -04:00
David Shaohua Li
0f64474b8f [ACPI] PCI can now get suspend state from firmware
pci_choose_state() can now call
	platform_pci_choose_state()
		and ACPI can answer

http://bugzilla.kernel.org/show_bug.cgi?id=4277

Signed-off-by: David Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-11 23:46:10 -04:00
David Shaohua Li
84df749f36 [ACPI] Bind ACPI and PCI devices
http://bugzilla.kernel.org/show_bug.cgi?id=4277

Signed-off-by: David Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-11 23:45:24 -04:00
Greg KH
bc56b9e011 [PATCH] PCI: Clean up a lot of sparse "Should it be static?" warnings.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-05-03 23:45:14 -07:00
Linus Torvalds
1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00