<feed xmlns='http://www.w3.org/2005/Atom'>
<title>starfive-tech/linux.git/include/linux/acpi.h, branch visionfive_v1_5.13</title>
<subtitle>StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)</subtitle>
<id>https://git.radix-linux.su/starfive-tech/linux.git/atom?h=visionfive_v1_5.13</id>
<link rel='self' href='https://git.radix-linux.su/starfive-tech/linux.git/atom?h=visionfive_v1_5.13'/>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/starfive-tech/linux.git/'/>
<updated>2021-04-26T15:04:27+00:00</updated>
<entry>
<title>Merge branches 'acpi-cppc', 'acpi-video' and 'acpi-utils'</title>
<updated>2021-04-26T15:04:27+00:00</updated>
<author>
<name>Rafael J. Wysocki</name>
<email>rafael.j.wysocki@intel.com</email>
</author>
<published>2021-04-26T15:04:27+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/starfive-tech/linux.git/commit/?id=aad659e490eff3b8e11fca292e6ae4c75e86e871'/>
<id>urn:sha1:aad659e490eff3b8e11fca292e6ae4c75e86e871</id>
<content type='text'>
* acpi-cppc:
  ACPI: CPPC: Replace cppc_attr with kobj_attribute
  ACPI: CPPC: Add emtpy stubs of functions for CONFIG_ACPI_CPPC_LIB unset

* acpi-video:
  ACPI: video: use native backlight for GA401/GA502/GA503
  ACPI: video: Check LCD flag on ACPI-reduced-hardware devices
  ACPI: utils: Add acpi_reduced_hardware() helper

* acpi-utils:
  ACPI: utils: Capitalize abbreviations in the comments
  ACPI: utils: Document for_each_acpi_dev_match() macro
</content>
</entry>
<entry>
<title>Merge branch 'acpi-messages'</title>
<updated>2021-04-26T15:03:22+00:00</updated>
<author>
<name>Rafael J. Wysocki</name>
<email>rafael.j.wysocki@intel.com</email>
</author>
<published>2021-04-26T15:03:22+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/starfive-tech/linux.git/commit/?id=ab497507c0e4df6282b9212c40cbc7acd5c55cdd'/>
<id>urn:sha1:ab497507c0e4df6282b9212c40cbc7acd5c55cdd</id>
<content type='text'>
* acpi-messages:
  hwmon: acpi_power_meter: Get rid of ACPICA message printing
  IIO: acpi-als: Get rid of ACPICA message printing
  ACPI: utils: Introduce acpi_evaluation_failure_warn()
  ACPI: Drop unused ACPI_*_COMPONENT definitions and update documentation
  ACPI: sysfs: Get rid of ACPICA message printing
</content>
</entry>
<entry>
<title>ACPI: utils: Add acpi_reduced_hardware() helper</title>
<updated>2021-04-08T17:50:12+00:00</updated>
<author>
<name>Hans de Goede</name>
<email>hdegoede@redhat.com</email>
</author>
<published>2021-04-07T17:58:20+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/starfive-tech/linux.git/commit/?id=8eb99e9a64a07ea08070591bdc2615526a103e62'/>
<id>urn:sha1:8eb99e9a64a07ea08070591bdc2615526a103e62</id>
<content type='text'>
Add a getter for the acpi_gbl_reduced_hardware variable so that modules
can check if they are running on an ACPI reduced-hw platform or not.

Signed-off-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
</content>
</entry>
<entry>
<title>ACPI: tables: x86: Reserve memory occupied by ACPI tables</title>
<updated>2021-03-29T17:26:04+00:00</updated>
<author>
<name>Rafael J. Wysocki</name>
<email>rafael.j.wysocki@intel.com</email>
</author>
<published>2021-03-23T19:26:52+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/starfive-tech/linux.git/commit/?id=1a1c130ab7575498eed5bcf7220037ae09cd1f8a'/>
<id>urn:sha1:1a1c130ab7575498eed5bcf7220037ae09cd1f8a</id>
<content type='text'>
The following problem has been reported by George Kennedy:

 Since commit 7fef431be9c9 ("mm/page_alloc: place pages to tail
 in __free_pages_core()") the following use after free occurs
 intermittently when ACPI tables are accessed.

 BUG: KASAN: use-after-free in ibft_init+0x134/0xc49
 Read of size 4 at addr ffff8880be453004 by task swapper/0/1
 CPU: 3 PID: 1 Comm: swapper/0 Not tainted 5.12.0-rc1-7a7fd0d #1
 Call Trace:
  dump_stack+0xf6/0x158
  print_address_description.constprop.9+0x41/0x60
  kasan_report.cold.14+0x7b/0xd4
  __asan_report_load_n_noabort+0xf/0x20
  ibft_init+0x134/0xc49
  do_one_initcall+0xc4/0x3e0
  kernel_init_freeable+0x5af/0x66b
  kernel_init+0x16/0x1d0
  ret_from_fork+0x22/0x30

 ACPI tables mapped via kmap() do not have their mapped pages
 reserved and the pages can be "stolen" by the buddy allocator.

Apparently, on the affected system, the ACPI table in question is
not located in "reserved" memory, like ACPI NVS or ACPI Data, that
will not be used by the buddy allocator, so the memory occupied by
that table has to be explicitly reserved to prevent the buddy
allocator from using it.

In order to address this problem, rearrange the initialization of the
ACPI tables on x86 to locate the initial tables earlier and reserve
the memory occupied by them.

The other architectures using ACPI should not be affected by this
change.

Link: https://lore.kernel.org/linux-acpi/1614802160-29362-1-git-send-email-george.kennedy@oracle.com/
Reported-by: George Kennedy &lt;george.kennedy@oracle.com&gt;
Tested-by: George Kennedy &lt;george.kennedy@oracle.com&gt;
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Reviewed-by: Mike Rapoport &lt;rppt@linux.ibm.com&gt;
Cc: 5.10+ &lt;stable@vger.kernel.org&gt; # 5.10+
</content>
</entry>
<entry>
<title>ACPI: utils: Introduce acpi_evaluation_failure_warn()</title>
<updated>2021-03-08T18:10:30+00:00</updated>
<author>
<name>Rafael J. Wysocki</name>
<email>rafael.j.wysocki@intel.com</email>
</author>
<published>2021-03-05T18:41:44+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/starfive-tech/linux.git/commit/?id=4c324548f09fec413b4ee589174dabacfe17d953'/>
<id>urn:sha1:4c324548f09fec413b4ee589174dabacfe17d953</id>
<content type='text'>
Quite a few users of ACPI objects want to log a warning message if
the evaluation fails which is a repeating pattern, so introduce a
helper function for that purpose and convert some code where it is
open-coded to using it.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
</content>
</entry>
<entry>
<title>gpiolib: acpi: Allow to find GpioInt() resource by name and index</title>
<updated>2021-03-08T10:59:17+00:00</updated>
<author>
<name>Andy Shevchenko</name>
<email>andriy.shevchenko@linux.intel.com</email>
</author>
<published>2021-02-25T16:33:19+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/starfive-tech/linux.git/commit/?id=809390219fb9c2421239afe5c9eb862d73978ba0'/>
<id>urn:sha1:809390219fb9c2421239afe5c9eb862d73978ba0</id>
<content type='text'>
Currently only search by index is supported. However, in some cases
we might need to pass the quirks to the acpi_dev_gpio_irq_get().

For this, split out acpi_dev_gpio_irq_get_by() and replace
acpi_dev_gpio_irq_get() by calling above with NULL for name parameter.

Fixes: ba8c90c61847 ("gpio: pca953x: Override IRQ for one of the expanders on Galileo Gen 2")
Depends-on: 0ea683931adb ("gpio: dwapb: Convert driver to using the GPIO-lib-based IRQ-chip")
Signed-off-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Acked-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
Acked-by: Linus Walleij &lt;linus.walleij@linaro.org&gt;
</content>
</entry>
<entry>
<title>ACPI: bus: Constify is_acpi_node() and friends (part 2)</title>
<updated>2021-03-03T18:50:47+00:00</updated>
<author>
<name>Andy Shevchenko</name>
<email>andriy.shevchenko@linux.intel.com</email>
</author>
<published>2021-03-02T13:35:48+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/starfive-tech/linux.git/commit/?id=ff70784ab9f89e78e67d5d172bf7644de673f61f'/>
<id>urn:sha1:ff70784ab9f89e78e67d5d172bf7644de673f61f</id>
<content type='text'>
Commit 8b9d6802583a ("ACPI: Constify acpi_bus helper functions,
switch to macros") only changed functions for CONFIG_ACPI=y case.
This part adjusts the rest.

Fixes: 8b9d6802583a ("ACPI: Constify acpi_bus helper functions, switch to macros")
Signed-off-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Reviewed-by: Sakari Ailus &lt;sakari.ailus@linux.intel.com&gt;
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
</content>
</entry>
<entry>
<title>Merge tag 'pci-v5.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci</title>
<updated>2021-02-25T17:56:08+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2021-02-25T17:56:08+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/starfive-tech/linux.git/commit/?id=5b47b10e8fb92f8beca6aa8a7d97fc84e090384c'/>
<id>urn:sha1:5b47b10e8fb92f8beca6aa8a7d97fc84e090384c</id>
<content type='text'>
Pull PCI updates from Bjorn Helgaas:
 "Enumeration:
   - Remove unnecessary locking around _OSC (Bjorn Helgaas)
   - Clarify message about _OSC failure (Bjorn Helgaas)
   - Remove notification of PCIe bandwidth changes (Bjorn Helgaas)
   - Tidy checking of syscall user config accessors (Heiner Kallweit)

  Resource management:
   - Decline to resize resources if boot config must be preserved (Ard
     Biesheuvel)
   - Fix pci_register_io_range() memory leak (Geert Uytterhoeven)

  Error handling (Keith Busch):
   - Clear error status from the correct device
   - Retain error recovery status so drivers can use it after reset
   - Log the type of Port (Root or Switch Downstream) that we reset
   - Always request a reset for Downstream Ports in frozen state

  Endpoint framework and NTB (Kishon Vijay Abraham I):
   - Make *_get_first_free_bar() take into account 64 bit BAR
   - Add helper API to get the 'next' unreserved BAR
   - Make *_free_bar() return error codes on failure
   - Remove unused pci_epf_match_device()
   - Add support to associate secondary EPC with EPF
   - Add support in configfs to associate two EPCs with EPF
   - Add pci_epc_ops to map MSI IRQ
   - Add pci_epf_ops to expose function-specific attrs
   - Allow user to create sub-directory of 'EPF Device' directory
   - Implement -&gt;msi_map_irq() ops for cadence
   - Configure LM_EP_FUNC_CFG based on epc-&gt;function_num_map for cadence
   - Add EP function driver to provide NTB functionality
   - Add support for EPF PCI Non-Transparent Bridge
   - Add specification for PCI NTB function device
   - Add PCI endpoint NTB function user guide
   - Add configfs binding documentation for pci-ntb endpoint function

  Broadcom STB PCIe controller driver:
   - Add support for BCM4908 and external PERST# signal controller
     (Rafał Miłecki)

  Cadence PCIe controller driver:
   - Retrain Link to work around Gen2 training defect (Nadeem Athani)
   - Fix merge botch in cdns_pcie_host_map_dma_ranges() (Krzysztof
     Wilczyński)

  Freescale Layerscape PCIe controller driver:
   - Add LX2160A rev2 EP mode support (Hou Zhiqiang)
   - Convert to builtin_platform_driver() (Michael Walle)

  MediaTek PCIe controller driver:
   - Fix OF node reference leak (Krzysztof Wilczyński)

  Microchip PolarFlare PCIe controller driver:
   - Add Microchip PolarFire PCIe controller driver (Daire McNamara)

  Qualcomm PCIe controller driver:
   - Use PHY_REFCLK_USE_PAD only for ipq8064 (Ansuel Smith)
   - Add support for ddrss_sf_tbu clock for sm8250 (Dmitry Baryshkov)

  Renesas R-Car PCIe controller driver:
   - Drop PCIE_RCAR config option (Lad Prabhakar)
   - Always allocate MSI addresses in 32bit space (Marek Vasut)

  Rockchip PCIe controller driver:
   - Add FriendlyARM NanoPi M4B DT binding (Chen-Yu Tsai)
   - Make 'ep-gpios' DT property optional (Chen-Yu Tsai)

  Synopsys DesignWare PCIe controller driver:
   - Work around ECRC configuration hardware defect (Vidya Sagar)
   - Drop support for config space in DT 'ranges' (Rob Herring)
   - Change size to u64 for EP outbound iATU (Shradha Todi)
   - Add upper limit address for outbound iATU (Shradha Todi)
   - Make dw_pcie ops optional (Jisheng Zhang)
   - Remove unnecessary dw_pcie_ops from al driver (Jisheng Zhang)

  Xilinx Versal CPM PCIe controller driver:
   - Fix OF node reference leak (Pan Bian)

  Miscellaneous:
   - Remove tango host controller driver (Arnd Bergmann)
   - Remove IRQ handler &amp; data together (altera-msi, brcmstb, dwc)
     (Martin Kaiser)
   - Fix xgene-msi race in installing chained IRQ handler (Martin
     Kaiser)
   - Apply CONFIG_PCI_DEBUG to entire drivers/pci hierarchy (Junhao He)
   - Fix pci-bridge-emul array overruns (Russell King)
   - Remove obsolete uses of WARN_ON(in_interrupt()) (Sebastian Andrzej
     Siewior)"

* tag 'pci-v5.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (69 commits)
  PCI: qcom: Use PHY_REFCLK_USE_PAD only for ipq8064
  PCI: qcom: Add support for ddrss_sf_tbu clock
  dt-bindings: PCI: qcom: Document ddrss_sf_tbu clock for sm8250
  PCI: al: Remove useless dw_pcie_ops
  PCI: dwc: Don't assume the ops in dw_pcie always exist
  PCI: dwc: Add upper limit address for outbound iATU
  PCI: dwc: Change size to u64 for EP outbound iATU
  PCI: dwc: Drop support for config space in 'ranges'
  PCI: layerscape: Convert to builtin_platform_driver()
  PCI: layerscape: Add LX2160A rev2 EP mode support
  dt-bindings: PCI: layerscape: Add LX2160A rev2 compatible strings
  PCI: dwc: Work around ECRC configuration issue
  PCI/portdrv: Report reset for frozen channel
  PCI/AER: Specify the type of Port that was reset
  PCI/ERR: Retain status from error notification
  PCI/AER: Clear AER status from Root Port when resetting Downstream Port
  PCI/ERR: Clear status of the reporting device
  dt-bindings: arm: rockchip: Add FriendlyARM NanoPi M4B
  PCI: rockchip: Make 'ep-gpios' DT property optional
  Documentation: PCI: Add PCI endpoint NTB function user guide
  ...
</content>
</entry>
<entry>
<title>Merge tag 'acpi-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm</title>
<updated>2021-02-21T05:50:59+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2021-02-21T05:50:59+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/starfive-tech/linux.git/commit/?id=3c8f504b3a486e4e984ac8dc619eba3afa24cec4'/>
<id>urn:sha1:3c8f504b3a486e4e984ac8dc619eba3afa24cec4</id>
<content type='text'>
Pull ACPI updates from Rafael Wysocki:
 "These update the ACPICA code in the kernel to upstream revision
  20210105, fix and clean up the handling of device properties, add
  support for setting global profile of the platform, clean up device
  enumeration, the CPPC library, the APEI support and more, update the
  documentation, consolidate the printing of messages in several places
  and make assorted janitorial changes.

  Specifics:

   - Update ACPICA code in the kernel to upstream revision 20201113 with
     changes as follows:

      * Remove the MTMR (Mid-Timer) table (Al Stone).
      * Remove the VRTC table (Al Stone).
      * Add type casts for string functions (Bob Moore).
      * Update all copyrights to 2021 (Bob Moore).
      * Fix exception code class checks (Maximilian Luz).
      * Clean up exception code class checks (Maximilian Luz).
      * Fix -Wfallthrough (Nick Desaulniers).

   - Add support for setting and reading global profile of the platform
     along with documentation (Mark Pearson, Hans de Goede, Jiaxun
     Yang).

   - Fix fwnode properties matching and clean up the code handling
     device properties and its documentation (Rafael Wysocki, Andy
     Shevchenko).

   - Clean up ACPI-based device enumeration code (Rafael Wysocki).

   - Clean up the CPPC support library code (Ionela Voinescu).

   - Clean up the APEI support code (Yang Li, Yazen Ghannam).

   - Update GPIO-related properties documentation (Flavio Suligoi).

   - Consolidate and clean up the printing of messages in several places
     (Rafael Wysocki).

   - Fix error code path in configfs handling code (Qinglang Miao).

   - Use DEVICE_ATTR_&lt;RW|RO|WO&gt; macros where applicable (Dwaipayan Ray).

   - Replace tests for !ACPI_FAILURE with tests for ACPI_SUCCESS in
     multiple places (Bjorn Helgaas)"

* tag 'acpi-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (44 commits)
  ACPI: property: Satisfy kernel doc validator (part 2)
  ACPI: property: Satisfy kernel doc validator (part 1)
  ACPI: property: Make acpi_node_prop_read() static
  ACPI: property: Remove dead code
  ACPI: property: Fix fwnode string properties matching
  ACPI: OSL: Clean up printing messages
  ACPI: OSL: Rework acpi_check_resource_conflict()
  ACPI: APEI: ERST: remove unneeded semicolon
  ACPI: thermal: Clean up printing messages
  ACPI: video: Clean up printing messages
  ACPI: button: Clean up printing messages
  ACPI: battery: Clean up printing messages
  ACPI: AC: Clean up printing messages
  ACPI: bus: Drop ACPI_BUS_COMPONENT which is not used any more
  ACPI: utils: Clean up printing messages
  ACPI: scan: Clean up printing messages
  ACPI: bus: Clean up printing messages
  ACPI: PM: Clean up printing messages
  ACPI: power: Clean up printing messages
  ACPI: APEI: Add is_generic_error() to identify GHES sources
  ...
</content>
</entry>
<entry>
<title>ACPI: property: Make acpi_node_prop_read() static</title>
<updated>2021-02-12T14:34:14+00:00</updated>
<author>
<name>Andy Shevchenko</name>
<email>andriy.shevchenko@linux.intel.com</email>
</author>
<published>2021-02-12T14:11:18+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/starfive-tech/linux.git/commit/?id=325aa816143228a0b3472074ffb50d55ac3f04fe'/>
<id>urn:sha1:325aa816143228a0b3472074ffb50d55ac3f04fe</id>
<content type='text'>
There is no users outside of property.c. No need to export
acpi_node_prop_read(), hence make it static.

Fixes: 3708184afc77 ("device property: Move FW type specific functionality to FW specific files")
Signed-off-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
</content>
</entry>
</feed>
