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75fb60f26b
linux/drivers/pci/hotplug
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Rafael J. Wysocki 75fb60f26b ACPI/PCI: Negotiate _OSC control bits before requesting them 
It is possible that the BIOS will not grant control of all _OSC
features requested via acpi_pci_osc_control_set(), so it is
recommended to negotiate the final set of _OSC features with the
query flag set before calling _OSC to request control of these
features.

To implement it, rework acpi_pci_osc_control_set() so that the caller
can specify the mask of _OSC control bits to negotiate and the mask
of _OSC control bits that are absolutely necessary to it.  Then,
acpi_pci_osc_control_set() will run _OSC queries in a loop until
the mask of _OSC control bits returned by the BIOS is equal to the
mask passed to it.  Also, before running the _OSC request
acpi_pci_osc_control_set() will check if the caller's required
control bits are present in the final mask.

Using this mechanism we will be able to avoid situations in which the
BIOS doesn't grant control of certain _OSC features, because they
depend on some other _OSC features that have not been requested.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-08-24 13:44:40 -07:00
..
acpi_pcihp.c ACPI/PCI: Negotiate _OSC control bits before requesting them 2010-08-24 13:44:40 -07:00
acpiphp_core.c PCI: Make current and maximum bus speeds part of the PCI core 2010-02-22 16:15:17 -08:00
acpiphp_glue.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
acpiphp_ibm.c sysfs: add struct file* to bin_attr callbacks 2010-05-21 09:37:31 -07:00
acpiphp.h PCI hotplug: move IOAPIC support from acpiphp to ioapic driver 2009-11-04 13:06:39 -08:00
cpci_hotplug_core.c headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
cpci_hotplug_pci.c PCI: cpci_hotplug: stop managing hotplug_slot->name 2008-10-22 16:42:39 -07:00
cpci_hotplug.h PCI: cpci_hotplug: stop managing hotplug_slot->name 2008-10-22 16:42:39 -07:00
cpcihp_generic.c PCI: hotplug/cpcihp, fix pci device refcounting 2010-02-22 16:17:02 -08:00
cpcihp_zt5550.c
cpcihp_zt5550.h
cpqphp_core.c PCI: hotplug/cpqphp, fix NULL dereference 2010-06-11 13:10:21 -07:00
cpqphp_ctrl.c PCI: Make current and maximum bus speeds part of the PCI core 2010-02-22 16:15:17 -08:00
cpqphp_nvram.c PCI Hotplug: cpqphp: fix comment style 2009-06-11 12:04:08 -07:00
cpqphp_nvram.h
cpqphp_pci.c PCI Hotplug: cpqphp: don't use pci_find_slot() 2009-06-11 12:04:16 -07:00
cpqphp_sysfs.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
cpqphp.h PCI: Make current and maximum bus speeds part of the PCI core 2010-02-22 16:15:17 -08:00
fakephp.c PCI: use for_each_pci_dev() 2010-07-30 09:47:22 -07:00
ibmphp_core.c PCI: Make current and maximum bus speeds part of the PCI core 2010-02-22 16:15:17 -08:00
ibmphp_ebda.c PCI hotplug: check ioremap() return value in ibmphp_ebda.c 2010-02-22 16:17:19 -08:00
ibmphp_hpc.c PCI hotplug: fix ibmphp build error 2010-02-22 16:17:18 -08:00
ibmphp_pci.c
ibmphp_res.c ibmphp: Rename add_range() to add_bus_range() to avoid conflict 2010-02-10 17:45:09 -08:00
ibmphp.h PCI: ibmphp: stop managing hotplug_slot->name 2008-10-22 16:42:41 -07:00
Kconfig PCI: drivers/pci/slot.c should depend on CONFIG_SYSFS 2009-06-18 13:57:24 -07:00
Makefile PCI hotplug: acpiphp should be linked after vendor drivers 2009-11-04 08:47:14 -08:00
pci_hotplug_core.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
pciehp_acpi.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
pciehp_core.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
pciehp_ctrl.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
pciehp_hpc.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
pciehp_pci.c PCI hotplug: pciehp: Fixed return value sign for pciehp_unconfigure_device 2010-07-30 09:29:15 -07:00
pciehp.h pciehp: use pci_pcie_cap() 2009-11-24 15:25:15 -08:00
pcihp_skeleton.c PCI hotplug: remove redundant .owner initializations 2009-06-16 14:30:12 -07:00
pcihp_slot.c PCI hotplug: use pci_is_pcie() 2009-11-24 15:25:18 -08:00
rpadlpar_core.c powerpc/pseries: Flush lazy kernel mappings after unplug operations 2010-04-28 16:23:24 +10:00
rpadlpar_sysfs.c PCI: introduce pci_slot 2008-06-10 14:37:03 -07:00
rpadlpar.h
rpaphp_core.c powerpc/pseries: Flush lazy kernel mappings after unplug operations 2010-04-28 16:23:24 +10:00
rpaphp_pci.c PCI hotplug: rpaphp: make debug var unique 2008-10-20 10:54:27 -07:00
rpaphp_slot.c PCI: rpaphp: kmalloc/kfree slot->name directly 2008-10-22 16:42:42 -07:00
rpaphp.h PCI hotplug: rpaphp: make debug var unique 2008-10-20 10:54:27 -07:00
sgi_hotplug.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
shpchp_core.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
shpchp_ctrl.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
shpchp_hpc.c PCI: hotplug/shpchp_hpc: add parenthesis in SLOT_REG_RSVDZ_MASK 2010-07-30 09:29:10 -07:00
shpchp_pci.c PCI hotplug: shpchp: Removed check for hotplug of display devices 2010-07-30 09:29:16 -07:00
shpchp_sysfs.c PCI: add pci_bus_for_each_resource(), remove direct bus->resource[] refs 2010-02-23 09:43:31 -08:00
shpchp.h PCI: Make current and maximum bus speeds part of the PCI core 2010-02-22 16:15:17 -08:00