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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI changes from Bjorn Helgaas:
"Resource management
- Fix host bridge window coalescing (Alexey Neyman)
- Pass type, width, and prefetchability for window alignment (Wei Yang)
PCI device hotplug
- Convert acpiphp, acpiphp_ibm to dynamic debug (Lan Tianyu)
Power management
- Remove pci_pm_complete() (Liu Chuansheng)
MSI
- Fail initialization if device is not in PCI_D0 (Yijing Wang)
MPS (Max Payload Size)
- Use pcie_get_mps() and pcie_set_mps() to simplify code (Yijing Wang)
- Use pcie_set_readrq() to simplify code (Yijing Wang)
- Use cached pci_dev->pcie_mpss to simplify code (Yijing Wang)
SR-IOV
- Enable upstream bridges even for VFs on virtual buses (Bjorn Helgaas)
- Use pci_is_root_bus() to avoid catching virtual buses (Wei Yang)
Virtualization
- Add x86 MSI masking ops (Konrad Rzeszutek Wilk)
Freescale i.MX6
- Support i.MX6 PCIe controller (Sean Cross)
- Increase link startup timeout (Marek Vasut)
- Probe PCIe in fs_initcall() (Marek Vasut)
- Fix imprecise abort handler (Tim Harvey)
- Remove redundant of_match_ptr (Sachin Kamat)
Renesas R-Car
- Support Gen2 internal PCIe controller (Valentine Barshak)
Samsung Exynos
- Add MSI support (Jingoo Han)
- Turn off power when link fails (Jingoo Han)
- Add Jingoo Han as maintainer (Jingoo Han)
- Add clk_disable_unprepare() on error path (Wei Yongjun)
- Remove redundant of_match_ptr (Sachin Kamat)
Synopsys DesignWare
- Add irq_create_mapping() (Pratyush Anand)
- Add header guards (Seungwon Jeon)
Miscellaneous
- Enable native PCIe services by default on non-ACPI (Andrew Murray)
- Cleanup _OSC usage and messages (Bjorn Helgaas)
- Remove pcibios_last_bus boot option on non-x86 (Bjorn Helgaas)
- Convert bus code to use bus_, drv_, and dev_groups (Greg Kroah-Hartman)
- Remove unused pci_mem_start (Myron Stowe)
- Make sysfs functions static (Sachin Kamat)
- Warn on invalid return from driver probe (Stephen M. Cameron)
- Remove Intel Haswell D3 delays (Todd E Brandt)
- Call pci_set_master() in core if driver doesn't do it (Yinghai Lu)
- Use pci_is_pcie() to simplify code (Yijing Wang)
- Use PCIe capability accessors to simplify code (Yijing Wang)
- Use cached pci_dev->pcie_cap to simplify code (Yijing Wang)
- Removed unused "is_pcie" from struct pci_dev (Yijing Wang)
- Simplify sysfs CPU affinity implementation (Yijing Wang)"
* tag 'pci-v3.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (79 commits)
PCI: Enable upstream bridges even for VFs on virtual buses
PCI: Add pci_upstream_bridge()
PCI: Add x86_msi.msi_mask_irq() and msix_mask_irq()
PCI: Warn on driver probe return value greater than zero
PCI: Drop warning about drivers that don't use pci_set_master()
PCI: Workaround missing pci_set_master in pci drivers
powerpc/pci: Use pci_is_pcie() to simplify code [fix]
PCI: Update pcie_ports 'auto' behavior for non-ACPI platforms
PCI: imx6: Probe the PCIe in fs_initcall()
PCI: Add R-Car Gen2 internal PCI support
PCI: imx6: Remove redundant of_match_ptr
PCI: Report pci_pme_active() kmalloc failure
mn10300/PCI: Remove useless pcibios_last_bus
frv/PCI: Remove pcibios_last_bus
PCI: imx6: Increase link startup timeout
PCI: exynos: Remove redundant of_match_ptr
PCI: imx6: Fix imprecise abort handler
PCI: Fail MSI/MSI-X initialization if device is not in PCI_D0
PCI: imx6: Remove redundant dev_err() in imx6_pcie_probe()
x86/PCI: Coalesce multiple overlapping host bridge windows
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* pci/misc:
PCI: Enable upstream bridges even for VFs on virtual buses
PCI: Add pci_upstream_bridge()
PCI: Add x86_msi.msi_mask_irq() and msix_mask_irq()
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This adds a pci_upstream_bridge() interface to find the PCI-to-PCI bridge
upstream from a device. This is typically just "dev->bus->self", but in
the case of a VF on a virtual bus, we have to start from the corresponding
PF. Returns NULL if there is no upstream PCI bridge, i.e., if the device
is on a root bus.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
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Certain platforms do not allow writes in the MSI-X BARs to setup or tear
down vector values. To combat against the generic code trying to write to
that and either silently being ignored or crashing due to the pagetables
being marked R/O this patch introduces a platform override.
Note that we keep two separate, non-weak, functions default_mask_msi_irqs()
and default_mask_msix_irqs() for the behavior of the arch_mask_msi_irqs()
and arch_mask_msix_irqs(), as the default behavior is needed by x86 PCI
code.
For Xen, which does not allow the guest to write to MSI-X tables - as the
hypervisor is solely responsible for setting the vector values - we
implement two nops.
This fixes a Xen guest crash when passing a PCI device with MSI-X to the
guest. See the bugzilla for more details.
[bhelgaas: add bugzilla info]
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=64581
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
CC: Zhenzhong Duan <zhenzhong.duan@oracle.com>
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* pci/misc:
PCI: Remove unused PCI_MSIX_FLAGS_BIRMASK definition
PCI: acpiphp_ibm: Convert to dynamic debug
PCI: acpiphp: Convert to dynamic debug
PCI: Remove Intel Haswell D3 delays
PCI: Pass type, width, and prefetchability for window alignment
PCI: Document reason for using pci_is_root_bus()
PCI: Use pci_is_root_bus() to check for root bus
PCI: Remove unused "is_pcie" from pci_dev structure
PCI: Update pci_find_slot() description in pci.txt
[SCSI] qla2xxx: Use standard PCIe Capability Link register field names
PCI: Fix comment typo, remove unnecessary !! in pci_is_pcie()
PCI: Drop "setting latency timer" messages
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PCI_MSIX_FLAGS_BIRMASK has been replaced by PCI_MSIX_TABLE_BIR for better
readability. Now no one uses it, remove it. No functional change.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Some code assumes "bus->self == NULL" means the bus is a root bus. This
adds a comment explaining why this is incorrect ("virtual" buses added for
SR-IOV have "bus->self == NULL" but are not root buses).
No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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No one uses "is_pcie" now; remove this obsolete member.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Use normal kernel-doc "Returns:" instead of "retrun"
Assignment to bool is always 1 or 0 so the !! isn't necessary.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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* pci/host-imx6:
PCI: imx6: Add support for i.MX6 PCIe controller
ARM: imx6q: Add PCIe bits to GPR syscon definition
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PCIe requires additional bits be defined for GPR8 and GPR12.
Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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* pci/yijing-pci_is_pcie-v2:
powerpc/pci: Use pci_is_pcie() to simplify code
[SCSI] qla2xxx: Use pcie_is_pcie() to simplify code
[SCSI] csiostor: Use pcie_capability_clear_and_set_word() to simplify code
[SCSI] bfa: Use pcie_set()/get_readrq() to simplify code
x86/pci: Use cached pci_dev->pcie_cap to simplify code
PCI: Use pci_is_pcie() to simplify code
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pci_is_pcie() and pcie_capability_clear_and_set_word() make it trivial
to set the PCIe Completion Timeout, so just fold the
csio_set_pcie_completion_timeout() function into its caller.
[bhelgaas: changelog, fold csio_set_pcie_completion_timeout() into caller]
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: Naresh Kumar Inna <naresh@chelsio.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jesper Juhl <jj@chaosbits.net>
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Make PCI Host Bridge _OSC #defines more consistent. No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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We write OSC_PCI_SUPPORT_MASKS as a simple 0x1f, so do the same
for OSC_PCI_CONTROL_MASKS. No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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OSC_PCI_NATIVE_HOTPLUG is completely unused, so remove it. No functional
change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Move the acpi_run_osc() prototype next to the related structure and
update comments. No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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OSC_QUERY_TYPE isn't a "type"; it's an index into the _OSC Capabilities
Buffer of DWORDs. Rename OSC_QUERY_TYPE, OSC_SUPPORT_TYPE, and
OSC_CONTROL_TYPE to OSC_QUERY_DWORD, etc., to make this clear.
No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Update _OSC definition comments to correspond to the 1-based spec wording
(DWORD 1, etc.) Write _OSC field #defines as hex to make clear that they
are bits in a 32-bit DWORD, not arbitrary values. No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management updates from Rafael J Wysocki:
- New power capping framework and the the Intel Running Average Power
Limit (RAPL) driver using it from Srinivas Pandruvada and Jacob Pan.
- Addition of the in-kernel switching feature to the arm_big_little
cpufreq driver from Viresh Kumar and Nicolas Pitre.
- cpufreq support for iMac G5 from Aaro Koskinen.
- Baytrail processors support for intel_pstate from Dirk Brandewie.
- cpufreq support for Midway/ECX-2000 from Mark Langsdorf.
- ARM vexpress/TC2 cpufreq support from Sudeep KarkadaNagesha.
- ACPI power management support for the I2C and SPI bus types from Mika
Westerberg and Lv Zheng.
- cpufreq core fixes and cleanups from Viresh Kumar, Srivatsa S Bhat,
Stratos Karafotis, Xiaoguang Chen, Lan Tianyu.
- cpufreq drivers updates (mostly fixes and cleanups) from Viresh
Kumar, Aaro Koskinen, Jungseok Lee, Sudeep KarkadaNagesha, Lukasz
Majewski, Manish Badarkhe, Hans-Christian Egtvedt, Evgeny Kapaev.
- intel_pstate updates from Dirk Brandewie and Adrian Huang.
- ACPICA update to version 20130927 includig fixes and cleanups and
some reduction of divergences between the ACPICA code in the kernel
and ACPICA upstream in order to improve the automatic ACPICA patch
generation process. From Bob Moore, Lv Zheng, Tomasz Nowicki, Naresh
Bhat, Bjorn Helgaas, David E Box.
- ACPI IPMI driver fixes and cleanups from Lv Zheng.
- ACPI hotplug fixes and cleanups from Bjorn Helgaas, Toshi Kani, Zhang
Yanfei, Rafael J Wysocki.
- Conversion of the ACPI AC driver to the platform bus type and
multiple driver fixes and cleanups related to ACPI from Zhang Rui.
- ACPI processor driver fixes and cleanups from Hanjun Guo, Jiang Liu,
Bartlomiej Zolnierkiewicz, Mathieu Rhéaume, Rafael J Wysocki.
- Fixes and cleanups and new blacklist entries related to the ACPI
video support from Aaron Lu, Felipe Contreras, Lennart Poettering,
Kirill Tkhai.
- cpuidle core cleanups from Viresh Kumar and Lorenzo Pieralisi.
- cpuidle drivers fixes and cleanups from Daniel Lezcano, Jingoo Han,
Bartlomiej Zolnierkiewicz, Prarit Bhargava.
- devfreq updates from Sachin Kamat, Dan Carpenter, Manish Badarkhe.
- Operation Performance Points (OPP) core updates from Nishanth Menon.
- Runtime power management core fix from Rafael J Wysocki and update
from Ulf Hansson.
- Hibernation fixes from Aaron Lu and Rafael J Wysocki.
- Device suspend/resume lockup detection mechanism from Benoit Goby.
- Removal of unused proc directories created for various ACPI drivers
from Lan Tianyu.
- ACPI LPSS driver fix and new device IDs for the ACPI platform scan
handler from Heikki Krogerus and Jarkko Nikula.
- New ACPI _OSI blacklist entry for Toshiba NB100 from Levente Kurusa.
- Assorted fixes and cleanups related to ACPI from Andy Shevchenko, Al
Stone, Bartlomiej Zolnierkiewicz, Colin Ian King, Dan Carpenter,
Felipe Contreras, Jianguo Wu, Lan Tianyu, Yinghai Lu, Mathias Krause,
Liu Chuansheng.
- Assorted PM fixes and cleanups from Andy Shevchenko, Thierry Reding,
Jean-Christophe Plagniol-Villard.
* tag 'pm+acpi-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (386 commits)
cpufreq: conservative: fix requested_freq reduction issue
ACPI / hotplug: Consolidate deferred execution of ACPI hotplug routines
PM / runtime: Use pm_runtime_put_sync() in __device_release_driver()
ACPI / event: remove unneeded NULL pointer check
Revert "ACPI / video: Ignore BIOS initial backlight value for HP 250 G1"
ACPI / video: Quirk initial backlight level 0
ACPI / video: Fix initial level validity test
intel_pstate: skip the driver if ACPI has power mgmt option
PM / hibernate: Avoid overflow in hibernate_preallocate_memory()
ACPI / hotplug: Do not execute "insert in progress" _OST
ACPI / hotplug: Carry out PCI root eject directly
ACPI / hotplug: Merge device hot-removal routines
ACPI / hotplug: Make acpi_bus_hot_remove_device() internal
ACPI / hotplug: Simplify device ejection routines
ACPI / hotplug: Fix handle_root_bridge_removal()
ACPI / hotplug: Refuse to hot-remove all objects with disabled hotplug
ACPI / scan: Start matching drivers after trying scan handlers
ACPI: Remove acpi_pci_slot_init() headers from internal.h
ACPI / blacklist: fix name of ThinkPad Edge E530
PowerCap: Fix build error with option -Werror=format-security
...
Conflicts:
arch/arm/mach-omap2/opp.c
drivers/Kconfig
drivers/spi/spi.c
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* acpi-hotplug:
ACPI / hotplug: Consolidate deferred execution of ACPI hotplug routines
ACPI / hotplug: Do not execute "insert in progress" _OST
ACPI / hotplug: Carry out PCI root eject directly
ACPI / hotplug: Merge device hot-removal routines
ACPI / hotplug: Make acpi_bus_hot_remove_device() internal
ACPI / hotplug: Simplify device ejection routines
ACPI / hotplug: Fix handle_root_bridge_removal()
ACPI / hotplug: Refuse to hot-remove all objects with disabled hotplug
ACPI / scan: Start matching drivers after trying scan handlers
ACPI: Remove acpi_pci_slot_init() headers from internal.h
Conflicts:
include/acpi/acpiosxf.h (with the 'acpica' branch)
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There are two different interfaces for queuing up work items on the
ACPI hotplug workqueue, alloc_acpi_hp_work() used by PCI and PCI host
bridge hotplug code and acpi_os_hotplug_execute() used by the common
ACPI hotplug code and docking stations. They both are somewhat
cumbersome to use and work slightly differently.
The users of alloc_acpi_hp_work() have to submit a work function that
will extract the necessary data items from a struct acpi_hp_work
object allocated by alloc_acpi_hp_work() and then will free that
object, while it would be more straightforward to simply use a work
function with one more argument and let the interface take care of
the execution details.
The users of acpi_os_hotplug_execute() also have to deal with the
fact that it takes only one argument in addition to the work function
pointer, although acpi_os_execute_deferred() actually takes care of
the allocation and freeing of memory, so it would have been able to
pass more arguments to the work function if it hadn't been
constrained by the connection with acpi_os_execute().
Moreover, while alloc_acpi_hp_work() makes GFP_KERNEL memory
allocations, which is correct, because hotplug work items are
always queued up from process context, acpi_os_hotplug_execute()
uses GFP_ATOMIC, as that is needed by acpi_os_execute(). Also,
acpi_os_execute_deferred() queued up by it waits for the ACPI event
workqueues to flush before executing the work function, whereas
alloc_acpi_hp_work() can't do anything similar. That leads to
somewhat arbitrary differences in behavior between various ACPI
hotplug code paths and has to be straightened up.
For this reason, replace both alloc_acpi_hp_work() and
acpi_os_hotplug_execute() with a single interface,
acpi_hotplug_execute(), combining their behavior and being more
friendly to its users than any of the two.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
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Notice that handle_root_bridge_removal() is the only user of
acpi_bus_hot_remove_device(), so it doesn't have to be exported
any more and can be made internal to the ACPI core.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
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Simplify handle_root_bridge_removal() and acpi_eject_store() by
getting rid of struct acpi_eject_event and passing device objects
directly to async routines executed via acpi_os_hotplug_execute().
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
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* pm-cpufreq:
intel_pstate: skip the driver if ACPI has power mgmt option
cpufreq: ondemand: Remove redundant return statement
cpufreq: move freq change notifications to cpufreq core
cpufreq: distinguish drivers that do asynchronous notifications
cpufreq/intel_pstate: Add static declarations to internal functions
cpufreq: arm_big_little: reconfigure switcher behavior at run time
cpufreq: arm_big_little: add in-kernel switching (IKS) support
ARM: vexpress/TC2: register vexpress-spc cpufreq device
cpufreq: arm_big_little: add vexpress SPC interface driver
ARM: vexpress/TC2: add cpu clock support
ARM: vexpress/TC2: add support for CPU DVFS
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There are few special cases like exynos5440 which doesn't send POSTCHANGE
notification from their ->target() routine and call some kind of bottom halves
for doing this work, work/tasklet/etc.. From which they finally send POSTCHANGE
notification.
Its better if we distinguish them from other cpufreq drivers in some way so that
core can handle them specially. So this patch introduces another flag:
CPUFREQ_ASYNC_NOTIFICATION, which will be set by such drivers.
This also changes exynos5440-cpufreq.c and powernow-k8 in order to set this
flag.
Acked-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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* pm-cpuidle:
ARM: EXYNOS: Remove incorrect __init annotation from cpuidle driver
ARM: EXYNOS: Use dev_err() instead of printk() for cpuidle driver
intel_idle: use CPU_TASKS_FROZEN instead of a numeric constant
cpuidle: remove cpuidle_unregister_governor()
cpuidle: don't call poll_idle_init() for every cpu
cpuidle: use drv instead of cpuidle_driver in show_current_driver()
cpuidle: call cpuidle_get_driver() from after taking cpuidle_driver_lock
cpuidle: replace multiline statements with single line in cpuidle_idle_call()
cpuidle: reduce code duplication inside cpuidle_idle_call()
cpuidle: merge two if() statements for checking error cases
cpuidle: rearrange __cpuidle_register_device() to keep minimal exit points
cpuidle: rearrange code in __cpuidle_driver_init()
cpuidle: make __cpuidle_driver_init() return void
cpuidle: make __cpuidle_device_init() return void
cpuidle: Fix comments in cpuidle core
cpuidle: fix indentation of cpumask
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cpuidle_unregister_governor() and cpuidle_replace_governor() aren't
used anymore and can be removed. They were used by cpufreq governors
earlier, but since the governors can't be compiled as modules any
more, these two functions aren't necessary.
Suggested-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Use tabs for cpumask indentation in struct cpuidle_driver.
[rjw: Changelog]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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* acpica: (35 commits)
ACPICA: Add __init for ACPICA initializers/finalizers.
ACPICA: Cleanup asmlinkage for ACPICA APIs.
ACPICA: Update acpidump related header file changes.
ACPICA: Update compilation environment settings.
ACPICA: Fix cached object deletion code.
ACPICA: Remove dead AOPOBJ_INVALID check.
ACPICA: Cleanup useless memset invocations.
ACPICA: Fix an ACPI_ALLOCATE_ZEROED() reversal.
ACPICA: Fix wrong object length returned by acpi_ut_get_simple_object_size().
ACPICA: Add new statistics interface.
ACPICA: Update DMAR table definitions.
ACPICA: Update RSDP table definitions.
ACPICA: Update namespace dump code.
ACPICA: Update check for setting the ANOBJ_IS_EXTERNAL flag.
ACPICA: Update default space handlers.
ACPICA: Update version to 20130927.
ACPICA: Update aclinux.h for new OSL override mechanism.
ACPICA: Add support to allow host OS to redefine individual OSL prototypes.
ACPICA: Simplify configuration of global ACPI_REDUCED_HARDWARE macro.
ACPICA: Fix indentation issues for macro invocations.
...
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This patch adds __init to the ACPICA documented initializers:
acpi_initialize_tables()
acpi_initialize_subsystem()
acpi_load_tables()
acpi_enable_subsystem()
acpi_initialize_objects()
and to acpi_reallocate_root_table(), acpi_find_root_pointer() which
are also meant to be called only during initialization.
This patch adds __init to the ACPICA documented finalizer:
acpi_terminate()
as this finalizer is only called in __init function now.
This change helps to reduce source code differences between
ACPICA upstream and Linux.
[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Add an asmlinkage wrapper around acpi_enter_sleep_state() to prevent
an empty stub from being called by assmebly code for ACPI_REDUCED_HARDWARE
set.
As arch/x86/kernel/acpi/wakeup_xx.S is only compiled when CONFIG_ACPI=y
and there are no users of ACPI_HARDWARE_REDUCED, currently this is in
fact not a real issue, but a cleanup to reduce source code differences
between Linux and ACPICA upstream.
[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This patch updates header files used by acpidump to reduce the
source code differences between Linux and ACPICA upstream.
This patch does not affect the generation of the Linux kernel binary.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This patch updates architecture specific environment settings to reduce
source differences between Linux and ACPICA upstream.
This patch does not affect the generation of the Linux kernel binary.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This patch ports new counters and statistics interface, already
implemented in ACPICA upstream, to Linux. That helps to reduce
source code differences between Linux and ACPICA upstream.
[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This patch updates DMAR table header definitions as such enhancement
has been made in ACPICA upstream already. It ports that change to
the Linux source to reduce source code differences between Linux and
ACPICA upstream.
Build test done on x86-64 machine with the following configs enabled:
CONFIG_DMAR_TABLE
CONFIG_IRQ_REMAP
CONFIG_INTEL_IOMMU
This patch does not affect the generation of the Linux kernel binary.
[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This patch updates RSDP table header definitions as such enhancement
has been made in ACPICA upstream already. It ports that change to
the Linux source to reduce source code differences between Linux and
ACPICA upstream.
This patch does not affect the generation of the Linux kernel binary.
[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Version 20130927.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The new ACPICA OSL override mechanism is used to solve these issues
for the Linux OSL:
1. Linux can implement OSL using a macro.
2. Linux can implement OSL using an inlined function.
3. Linux can leave OSL not implemented for __KERNEL__ undefined code
fragments.
4. Linux can add sparse declarators (__iomem) to OSL.
5. Linux can add memory tuning declarators (__init/__exit) to OSL.
This patch also moves Linux specific OSL to aclinux.h which has not been
maintained in the ACPICA code base. Lv Zheng.
Known issue:
From ACPICA's perspective, actypes.h should be included after inclusion
of acenv.h. But currently in Linux, aclinux.h included by acenv.h has
included actypes.h to find ACPICA types for inline functions. This is a
known and existing issue and currently there is no real problem caused
by this issue for Linux kernel build. Thus this issue is not covered by
this cleanup commit.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This change enables the host OS to redefine OSL prototypes found in the
acpiosxf.h file. This allows the host OS to implement OSL interfaces with
a macro or inlined function. Further, it allows the host OS to add any
additional required modifiers such as __iomem, __init, __exit, etc.,
as necessary on a per-interface basis. Enables maximum flexibility
for the OSL interfaces. Lv Zheng.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Surround definition of this with a #ifndef so that the kernel
can define it elsewhere if desired.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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During the automatic translation of the upstream ACPICA source code
into Linux kernel source code some extra white spaces are added by
the "indent" program at the beginning of each line which is an
invocation of a macro and there is no ";" at the end of the line.
For this reason, a new mode has been added to the translation scripts
to remove the extra spaces inserted before invoking such macros and add
an empty line between the invocations of such macros (like the other
function declarations). This new mode is executed after executing
"indent" during the Linux release process. Consequently, some
existing ACPICA source code in the Linux kernel tree needs to be
adjusted to allow the new scripts to work correctly.
The affected macros and files are:
1. ACPI_HW_DEPENDENT_RETURN (acpixf.h/acdebug.h/acevents.h):
This macro is used as a wrapper for hardware dependent APIs to offer
a stub when the reduced hardware is configured during compilation.
2. ACPI_EXPORT_SYMBOL (utglobal.c):
This macro is used by Linux to export symbols to be found by Linux
modules. All such invocations are well formatted except those
exported as global variables.
This can help to reduce the source code differences between Linux
and upstream ACPICA, and also help to automate the release process.
No functional or binary generation changes should result from it.
Lv Zheng.
[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The following build error:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CC arch/x86/kernel/setup.o
In file included from include/acpi/acpi.h:64:0,
from include/linux/iscsi_ibft.h:24,
from arch/x86/kernel/setup.c:43:
include/acpi/acpixf.h:543:1: error: expected ',' or ';' before '{' token
include/acpi/acpixf.h:540:1: warning: 'acpi_error' declared 'static' but never defined [-Wunused-function]
make[2]: *** [arch/x86/kernel/setup.o] Error 1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
can be triggerred by the following stub function (if implemented):
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
static inline void ACPI_INTERNAL_VAR_XFACE
acpi_error(const char *module_name,
u32 line_number, const char *format, ...) ACPI_PRINTF_LIKE(3)
{
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This patch changes the position of ACPI_PRINTF_LIKE(x) to follow the
style of __printf(x, x+1) used in Linux to prevent such issues from
happening. Lv Zheng.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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interfaces.
This changes can reduce source code differences between Linux and ACPICA
upstream to help improving the release automation.
The side effect of applying this patch in Linux is:
1. Some ACPICA initialization/termination APIs are no longer exported in
Linux, these include:
acpi_load_tables
acpi_initialize_subsystem
acpi_enable_subsystem
acpi_initialize_objects
acpi_terminate
2. This patch does not affect the following APIs as they are currently not
marked with ACPI_EXPORT_SYMBOL in Linux:
acpi_reallocate_root_table
acpi_initialize_tables
Such functions should not be exported as they are internal to ACPI
subsystem in Linux, and will only be invoked inside of ACPI subsystem's
initialization routines marked with __init and termination routines marked
with __exit. While on other OSPMs, such functions may still need to be
exported.
Thus this patch adds the configurability for ACPICA, so that it leaves
OSPMs to determine if the __init/__exit marked functions should be exported
or not. Lv Zheng.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Add a comment to clarify reason for using ACPI_FREE_BUFFER directly
instead of ACPI_FREE.
In addition to that, change one instance in which ACPI_FREE_BUFFER()
should be used instead of ACPI_FREE().
[rjw: Subject and changelog]
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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For Linux, there are no functional changes/binary generation differences
introduced by this patch.
This change adds a new macro to all files that contain external ACPICA
interfaces. It can be detected and used by the host (via the host-specific
header) for any special processing required for such modules. Lv Zheng.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The ACPI spec requires the reset register width to be 8, so we
now hardcode it and ignore the FADT value. This provides/maintains
compatibility with other ACPI implementations that have allowed
BIOS code with bad register width values to go unnoticed.
Matthew Garett, Bob Moore, Lv Zheng.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Sort the method names in acnames.h.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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In the common case, the ACPI_ALLOCATE and related macros now resolve
directly to their respective acpi_os* OSL interfaces. Two options:
1) The ACPI_ALLOCATE_ZEROED macro defaults to a simple local implementation
by default, unless overridden by the USE_NATIVE_ALLOCATE_ZEROED define.
2) For ACPI execution simulation environment (AcpiExec) which is not
shipped with the Linux kernel, the macros can optionally be resolved to
the local interfaces that track each allocation (used to immediately
detect memory leaks).
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This fix repairs a version of a macro that is used for the hardware
reduced case only. It adds a return statement to the macro definition
so that the translation into the Linux kernel source will not completely
delete the second line of the macro because it thinks that it is an empty
block. It actually clarifies the use of the macro anyway.
Reported-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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