Commit Graph

1013453 Commits

Author SHA1 Message Date
Bjorn Helgaas
a4ffbb7a96 Merge branch 'remotes/lorenzo/pci/misc'
- Remove layerscape-gen4 dependencies on OF and ARM64, add dependency on
  ARCH_LAYERSCAPE (Geert Uytterhoeven)

- Remove obsolete HiSilicon PCIe DT description (Dongdong Liu)

* remotes/lorenzo/pci/misc:
  dt-bindings: PCI: hisi: Delete the obsolete HiSilicon PCIe file
  PCI: mobiveil: Improve PCIE_LAYERSCAPE_GEN4 dependencies
2021-05-04 10:43:31 -05:00
Bjorn Helgaas
51bc2b7ffd Merge branch 'remotes/lorenzo/pci/msi'
- Convert tegra to MSI domains (Marc Zyngier)

- Use rcar controller address as MSI doorbell instead of allocating a page
  (Marc Zyngier)

- Convert rcar to MSI domains (Marc Zyngier)

- Use xilinx port structure as MSI doorbell instead of allocating a page
  (Marc Zyngier)

- Convert xilinx to MSI domains (Marc Zyngier)

- Remove unused Hyper-V msi_controller structure (Marc Zyngier)

- Remove unused PCI core msi_controller support (Marc Zyngier)

- Remove struct msi_controller (Marc Zyngier)

- Remove unused default_teardown_msi_irqs() (Marc Zyngier)

- Let host bridges declare their reliance on MSI domains (Marc Zyngier)

- Make pci_host_common_probe() declare its reliance on MSI domains (Marc
  Zyngier)

- Advertise mediatek lack of built-in MSI handling (Thomas Gleixner)

- Document ways of ending up with NO_MSI (Marc Zyngier)

- Refactor HT advertising of NO_MSI flag (Marc Zyngier)

* remotes/lorenzo/pci/msi:
  PCI: Refactor HT advertising of NO_MSI flag
  PCI/MSI: Document the various ways of ending up with NO_MSI
  PCI: mediatek: Advertise lack of built-in MSI handling
  PCI/MSI: Make pci_host_common_probe() declare its reliance on MSI domains
  PCI/MSI: Let PCI host bridges declare their reliance on MSI domains
  PCI/MSI: Kill default_teardown_msi_irqs()
  PCI/MSI: Kill msi_controller structure
  PCI/MSI: Drop use of msi_controller from core code
  PCI: hv: Drop msi_controller structure
  PCI: xilinx: Convert to MSI domains
  PCI: xilinx: Don't allocate extra memory for the MSI capture address
  PCI: rcar: Convert to MSI domains
  PCI: rcar: Don't allocate extra memory for the MSI capture address
  PCI: tegra: Convert to MSI domains
2021-05-04 10:43:30 -05:00
Bjorn Helgaas
4772ade273 Merge branch 'remotes/lorenzo/pci/xilinx'
- Add support for coherent PCIe DMA traffic using CCI (Bharat Kumar Gogada)

- Add optional "dma-coherent" DT property (Bharat Kumar Gogada)

* remotes/lorenzo/pci/xilinx:
  PCI: xilinx-nwl: Add optional "dma-coherent" property
  PCI: xilinx-nwl: Enable coherent PCIe DMA traffic using CCI
2021-05-04 10:43:30 -05:00
Bjorn Helgaas
2a2dd35fee Merge branch 'remotes/lorenzo/pci/xgene'
- Fix cfg resource mapping regression (Dejin Zheng)

* remotes/lorenzo/pci/xgene:
  PCI: xgene: Fix cfg resource mapping
2021-05-04 10:43:30 -05:00
Bjorn Helgaas
04dcc048f3 Merge branch 'remotes/lorenzo/pci/vmd'
- Program IRTE with Requester ID of VMD endpoint, not child device (Jon
  Derrick)

- Disable VMD MSI-X remapping when possible so children can use more MSI-X
  vectors (Jon Derrick)

* remotes/lorenzo/pci/vmd:
  PCI: vmd: Disable MSI-X remapping when possible
  iommu/vt-d: Use Real PCI DMA device for IRTE
2021-05-04 10:43:29 -05:00
Bjorn Helgaas
5b8dafa1e3 Merge branch 'remotes/lorenzo/pci/tegra'
- Make several tegra symbols const (Rikard Falkeborn)

- Fix tegra Kconfig host/endpoint typo (Wesley Sheng)

- Fix runtime PM imbalance (Dinghao Liu)

* remotes/lorenzo/pci/tegra:
  PCI: tegra: Fix runtime PM imbalance in pex_ep_event_pex_rst_deassert()
  PCI: tegra: Fix typo for PCIe endpoint mode in Tegra194
  PCI: tegra: Constify static structs
2021-05-04 10:43:29 -05:00
Bjorn Helgaas
98d771eb3d Merge branch 'remotes/lorenzo/pci/risc-v'
- sifive: Add pcie_aux clock to prci driver (Greentime Hu)

- sifive: Use reset-simple in prci driver for PCIe (Greentime Hu)

- Add SiFive FU740 PCIe host controller driver and DT binding (Paul
  Walmsley, Greentime Hu)

* remotes/lorenzo/pci/risc-v:
  riscv: dts: Add PCIe support for the SiFive FU740-C000 SoC
  PCI: fu740: Add SiFive FU740 PCIe host controller driver
  dt-bindings: PCI: Add SiFive FU740 PCIe host controller
  MAINTAINERS: Add maintainers for SiFive FU740 PCIe driver
  clk: sifive: Use reset-simple in prci driver for PCIe driver
  clk: sifive: Add pcie_aux clock in prci driver for PCIe driver
2021-05-04 10:43:28 -05:00
Bjorn Helgaas
180594f55f Merge branch 'remotes/lorenzo/pci/microchip'
- Make several microchip symbols static (Wei Yongjun)

- Drop redundant dev_err() for platform_get_irq() errors (Krzysztof
  Wilczyński)

* remotes/lorenzo/pci/microchip:
  PCI: microchip: Remove dev_err() when handing an error from platform_get_irq()
  PCI: microchip: Make some symbols static
2021-05-04 10:43:28 -05:00
Bjorn Helgaas
0b51c08bde Merge branch 'remotes/lorenzo/pci/mediatek'
- Configure FC and FTS for functions other than 0 (Ryder Lee)

- Add missing MODULE_DEVICE_TABLE (Qiheng Lin)

- Add YAML schema for MediaTek (Jianjun Wang)

- Export pci_pio_to_address() for module use (Jianjun Wang)

- Add MediaTek MT8192 PCIe controller driver (Jianjun Wang)

- Add MediaTek MT8192 INTx support (Jianjun Wang)

- Add MediaTek MT8192 MSI support (Jianjun Wang)

- Add MediaTek MT8192 system power management support (Jianjun Wang)

* remotes/lorenzo/pci/mediatek:
  MAINTAINERS: Add Jianjun Wang as MediaTek PCI co-maintainer
  PCI: mediatek-gen3: Add system PM support
  PCI: mediatek-gen3: Add MSI support
  PCI: mediatek-gen3: Add INTx support
  PCI: mediatek-gen3: Add MediaTek Gen3 driver for MT8192
  PCI: Export pci_pio_to_address() for module use
  dt-bindings: PCI: mediatek-gen3: Add YAML schema
  PCI: mediatek: Add missing MODULE_DEVICE_TABLE
  PCI: mediatek: Configure FC and FTS for functions other than 0
2021-05-04 10:43:28 -05:00
Darrick J. Wong
8e9800f9f2 xfs: don't allow log writes if the data device is readonly
While running generic/050 with an external log, I observed this warning
in dmesg:

Trying to write to read-only block-device sda4 (partno 4)
WARNING: CPU: 2 PID: 215677 at block/blk-core.c:704 submit_bio_checks+0x256/0x510
Call Trace:
 submit_bio_noacct+0x2c/0x430
 _xfs_buf_ioapply+0x283/0x3c0 [xfs]
 __xfs_buf_submit+0x6a/0x210 [xfs]
 xfs_buf_delwri_submit_buffers+0xf8/0x270 [xfs]
 xfsaild+0x2db/0xc50 [xfs]
 kthread+0x14b/0x170

I think this happened because we tried to cover the log after a readonly
mount, and the AIL tried to write the primary superblock to the data
device.  The test marks the data device readonly, but it doesn't do the
same to the external log device.  Therefore, XFS thinks that the log is
writable, even though AIL writes whine to dmesg because the data device
is read only.

Fix this by amending xfs_log_writable to prevent writes when the AIL
can't possible write anything into the filesystem.

Note: As for the external log or the rt devices being readonly--
xfs_blkdev_get will complain about that if we aren't doing a norecovery
mount.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2021-05-04 08:43:27 -07:00
Bjorn Helgaas
586fbe90f8 Merge branch 'remotes/lorenzo/pci/layerscape'
- Fix ls_pcie_ep_probe() syntax error (comma for semicolon) (Krzysztof
  Wilczyński)

* remotes/lorenzo/pci/layerscape:
  PCI: layerscape: Correct syntax by changing comma to semicolon
2021-05-04 10:43:27 -05:00
Bjorn Helgaas
1c401162ed Merge branch 'remotes/lorenzo/pci/iproc'
- Return zero for success of iproc_msi_irq_domain_alloc() (Pali Rohár)

* remotes/lorenzo/pci/iproc:
  PCI: iproc: Fix return value of iproc_msi_irq_domain_alloc()
2021-05-04 10:43:27 -05:00
Bjorn Helgaas
362e377037 Merge branch 'remotes/lorenzo/pci/endpoint'
- Fix NULL pointer dereference when epc_features not implemented (Shradha
  Todi)

- Remove redundant initialization (Colin Ian King)

- Add missing destroy_workqueue() in endpoint test (Yang Yingliang)

* remotes/lorenzo/pci/endpoint:
  PCI: endpoint: Fix missing destroy_workqueue()
  PCI: endpoint: Remove redundant initialization of pointer dev
  PCI: endpoint: Fix NULL pointer dereference for ->get_features()
2021-05-04 10:43:27 -05:00
Bjorn Helgaas
a5166a194e Merge branch 'remotes/lorenzo/pci/dwc'
- Use generic config accessors for TI AM65x (K3) to fix regression (Kishon
  Vijay Abraham I)

- Move MSI Receiver init to dw_pcie_host_init() so it is re-initialized
  along with the RC in resume (Jisheng Zhang)

- Remove unused pcie_app_rd() (Jiapeng Chong)

- Move iATU detection earlier to fix regression (Hou Zhiqiang)

* remotes/lorenzo/pci/dwc:
  PCI: dwc: Move iATU detection earlier
  PCI: dwc/intel-gw: Remove unused function
  PCI: dwc: Move dw_pcie_msi_init() to dw_pcie_setup_rc()
  PCI: keystone: Let AM65 use the pci_ops defined in pcie-designware-host.c
2021-05-04 10:43:26 -05:00
Bjorn Helgaas
3ec17ca688 Merge branch 'remotes/lorenzo/pci/cadence'
- Add DT binding and TI j721e support for refclk to PCIe connector (Kishon
  Vijay Abraham I)

- Add host mode and endpoint mode DT bindings for TI AM64 SoC (Kishon Vijay
  Abraham I)

* remotes/lorenzo/pci/cadence:
  PCI: j721e: Add support to provide refclk to PCIe connector
  dt-bindings: PCI: ti,j721e: Add endpoint mode dt-bindings for TI's AM64 SoC
  dt-bindings: PCI: ti,j721e: Add host mode dt-bindings for TI's AM64 SoC
  dt-bindings: PCI: ti,j721e: Add binding to represent refclk to the connector
2021-05-04 10:43:26 -05:00
Bjorn Helgaas
531a953da3 Merge branch 'remotes/lorenzo/pci/brcmstb'
- Fix brcm_pcie_probe() error return for unsupported revision (Wei Yongjun)

* remotes/lorenzo/pci/brcmstb:
  PCI: brcmstb: Fix error return code in brcm_pcie_probe()
2021-05-04 10:43:25 -05:00
Bjorn Helgaas
c57400bbe1 Merge branch 'remotes/lorenzo/pci/altera-msi'
- Remove redundant dev_err() for devm_ioremap_resource() failure (Chen Hui)

* remotes/lorenzo/pci/altera-msi:
  PCI: altera-msi: Remove redundant dev_err call in altera_msi_probe()
2021-05-04 10:43:25 -05:00
Bjorn Helgaas
ccfc1d5570 Merge branch 'pci/misc'
- Fix compile testing of al driver without CONFIG_PCI_ECAM (Arnd Bergmann)

- Fix compile testing of thunder drivers (Arnd Bergmann)

- Fix "no symbols" warnings when compile testing al, thunder driver with
  CONFIG_TRIM_UNUSED_KSYMS (Arnd Bergmann)

- Remove unused MicroGate SyncLink device IDs (Jiri Slaby)

- Remove unused alloc_pci_root_info() return value (Krzysztof Wilczyński)

* pci/misc:
  x86/PCI: Remove unused alloc_pci_root_info() return value
  PCI: Remove MicroGate SyncLink device IDs
  PCI: Avoid building empty drivers
  PCI: thunder: Fix compile testing
  PCI: al: Select CONFIG_PCI_ECAM
2021-05-04 10:43:25 -05:00
Bjorn Helgaas
22d106733a Merge branch 'pci/virtualization'
- Increase delay after FLR to work around Intel DC P4510 NVMe erratum
  (Raphael Norwitz)

* pci/virtualization:
  PCI: Delay after FLR of Intel DC P4510 NVMe
2021-05-04 10:43:24 -05:00
Bjorn Helgaas
7faf1dacfb Merge branch 'pci/kernel-doc'
- Fix kernel-doc warnings (Krzysztof Wilczyński)

* pci/kernel-doc:
  PCI: Fix kernel-doc errors
2021-05-04 10:43:24 -05:00
Bjorn Helgaas
bac66f8f97 Merge branch 'pci/sysfs'
- Convert sysfs "config", "rom", "reset", "label", "index", "acpi_index" to
  static attributes to fix races in device enumeration (Krzysztof
  Wilczyński)

- Convert sysfs "vpd" to static attribute (Heiner Kallweit, Krzysztof
  Wilczyński)

- Use sysfs_emit() in "show" functions (Krzysztof Wilczyński)

* pci/sysfs:
  PCI/sysfs: Use sysfs_emit() and sysfs_emit_at() in "show" functions
  PCI/sysfs: Rearrange smbios_attr_group and acpi_attr_group
  PCI/sysfs: Tidy SMBIOS & ACPI label attributes
  PCI/sysfs: Convert "index", "acpi_index", "label" to static attributes
  PCI/sysfs: Define SMBIOS label attributes with DEVICE_ATTR*()
  PCI/sysfs: Define ACPI label attributes with DEVICE_ATTR*()
  PCI/sysfs: Rename device_has_dsm() to device_has_acpi_name()
  PCI/sysfs: Convert "vpd" to static attribute
  PCI/sysfs: Rename "vpd" attribute accessors
  PCI/sysfs: Convert "reset" to static attribute
  PCI/sysfs: Convert "rom" to static attribute
  PCI/sysfs: Convert "config" to static attribute
2021-05-04 10:43:23 -05:00
Bjorn Helgaas
3c5b307a1e Merge branch 'pci/vpd'
- Remove obsolete Broadcom NIC VPD length-limiting quirk (Heiner Kallweit)

- Remove sysfs VPD size checking dead code (Heiner Kallweit)

- Convert VPF sysfs file to static attribute (Heiner Kallweit)

- Remove unnecessary pci_set_vpd_size() (Heiner Kallweit)

- Tone down "missing VPD" message (Heiner Kallweit)

* pci/vpd:
  PCI: Allow VPD access for QLogic ISP2722
  PCI/VPD: Add helper pci_get_func0_dev()
  PCI/VPD: Remove pci_vpd_find_tag() SRDT handling
  PCI/VPD: Remove pci_vpd_find_tag() 'offset' argument
  PCI/VPD: Change pci_vpd_init() return type to void
  PCI/VPD: Make missing VPD message less alarming
  PCI/VPD: Remove pci_set_vpd_size()
  PCI/VPD: Remove sysfs accessor size checking dead code
  PCI/VPD: Remove obsolete Broadcom NIC quirk
2021-05-04 10:43:23 -05:00
Bjorn Helgaas
acd18f12d9 Merge branch 'pci/pm'
- Fix acpi_pci_set_power_state() debug message (Rafael J. Wysocki)

* pci/pm:
  PCI/ACPI: Fix acpi_pci_set_power_state() debug message
2021-05-04 10:43:23 -05:00
Bjorn Helgaas
31311031d7 Merge branch 'pci/hotplug'
- Fix acpiphp reference count leak (Feilong Lin)

* pci/hotplug:
  PCI: acpiphp: Fix whitespace issue
  PCI: shpchp: Remove unused shpc_writeb()
  PCI: cpqphp: Use DEFINE_SPINLOCK() for int15_lock
  ACPI / hotplug / PCI: Fix reference count leak in enable_slot()
2021-05-04 10:43:22 -05:00
Bjorn Helgaas
6d34adbe0e Merge branch 'pci/error'
- Fix RCiEP device to RCEC association (Qiuxu Zhuo)

* pci/error:
  PCI/RCEC: Fix RCiEP device to RCEC association
2021-05-04 10:43:22 -05:00
Bjorn Helgaas
975af39978 Merge branch 'pci/enumeration'
- Release OF node when pci_scan_device() fails (Dmitry Baryshkov)

- Add pci_disable_parity() (Bjorn Helgaas)

- Disable Mellanox Tavor parity reporting (Heiner Kallweit)

- Disable N2100 r8169 parity reporting (Heiner Kallweit)

* pci/enumeration:
  ARM: iop32x: disable N2100 PCI parity reporting
  IB/mthca: Disable parity reporting
  PCI: Add pci_disable_parity()
  PCI: Release OF node in pci_scan_device()'s error path
2021-05-04 10:43:22 -05:00
Guenter Roeck
b9d79e4ca4 fbmem: Mark proc_fb_seq_ops as __maybe_unused
With CONFIG_PROC_FS=n and -Werror, 0-day reports:

drivers/video/fbdev/core/fbmem.c:736:36: error:
	'proc_fb_seq_ops' defined but not used

Mark it as __maybe_unused.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210504142910.2084722-1-linux@roeck-us.net
2021-05-04 17:12:37 +02:00
Ilya Dryomov
3f1c6f2122 libceph: allow addrvecs with a single NONE/blank address
Normally, an unused OSD id/slot is represented by an empty addrvec.
However, it also appears to be possible to generate an osdmap where
an unused OSD id/slot has an addrvec with a single blank address of
type NONE.  Allow such addrvecs and make the end result be exactly
the same as for the empty addrvec case -- leave addr intact.

Cc: stable@vger.kernel.org # 5.11+
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
2021-05-04 16:06:15 +02:00
Geert Uytterhoeven
6799e3f281 dt-bindings: net: renesas,etheravb: Fix optional second clock name
If the optional "clock-names" property is present, but the optional TXC
reference clock is not, "make dtbs_check" complains:

    ethernet@e6800000: clock-names: ['fck'] is too short

Fix this by declaring that a single clock name is valid.
While at it, drop the superfluous upper limit on the number of clocks,
as it is implied by the list of descriptions.

Fixes: 6f43735b6d ("dt-bindings: net: renesas,etheravb: Add additional clocks")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/b3d91c9f70a15792ad19c87e4ea35fc876600fae.1620118901.git.geert+renesas@glider.be
Signed-off-by: Rob Herring <robh@kernel.org>
2021-05-04 09:05:46 -05:00
Greentime Hu
ae80d51480 riscv: dts: Add PCIe support for the SiFive FU740-C000 SoC
Link: https://lore.kernel.org/r/20210504105940.100004-7-greentime.hu@sifive.com
Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-05-04 14:58:32 +01:00
Paul Walmsley
e7e21b3a33 PCI: fu740: Add SiFive FU740 PCIe host controller driver
Add driver for the SiFive FU740 PCIe host controller.
This controller is based on the DesignWare PCIe core.

Co-developed-by: Henry Styles <hes@sifive.com>
Co-developed-by: Erik Danie <erik.danie@sifive.com>
Co-developed-by: Greentime Hu <greentime.hu@sifive.com>
Link: https://lore.kernel.org/r/20210504105940.100004-6-greentime.hu@sifive.com
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Henry Styles <hes@sifive.com>
Signed-off-by: Erik Danie <erik.danie@sifive.com>
Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2021-05-04 14:58:22 +01:00
Christophe Leroy
c6b05f4e23 powerpc/kconfig: Restore alphabetic order of the selects under CONFIG_PPC
Commit a7d2475af7 ("powerpc: Sort the selects under CONFIG_PPC")
sorted all selects under CONFIG_PPC.

4 years later, several items have been introduced at wrong place,
a few other have been renamed without moving them to their correct
place.

Reorder them now.

While we are at it, simplify the test for a couple of them:
- PPC_64 && PPC_PSERIES is simplified in PPC_PSERIES
- PPC_64 && PPC_BOOK3S is simplified in PPC_BOOK3S_64

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/361ee3fc5009c709ae0ca592249bb0702c6ef073.1619024780.git.christophe.leroy@csgroup.eu
2021-05-04 23:39:53 +10:00
Christophe Leroy
f5668260b8 powerpc/32: Fix boot failure with CONFIG_STACKPROTECTOR
Commit 7c95d8893f ("powerpc: Change calling convention for
create_branch() et. al.") complexified the frame of function
do_feature_fixups(), leading to GCC setting up a stack
guard when CONFIG_STACKPROTECTOR is selected.

The problem is that do_feature_fixups() is called very early
while 'current' in r2 is not set up yet and the code is still
not at the final address used at link time.

So, like other instrumentation, stack protection needs to be
deactivated for feature-fixups.c and code-patching.c

Fixes: 7c95d8893f ("powerpc: Change calling convention for create_branch() et. al.")
Cc: stable@vger.kernel.org # v5.8+
Reported-by: Jonathan Neuschaefer <j.neuschaefer@gmx.net>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Tested-by: Jonathan Neuschaefer <j.neuschaefer@gmx.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/b688fe82927b330349d9e44553363fa451ea4d95.1619715114.git.christophe.leroy@csgroup.eu
2021-05-04 22:28:05 +10:00
Sandipan Das
b910fcbada powerpc/powernv/memtrace: Fix dcache flushing
Trace memory is cleared and the corresponding dcache lines
are flushed after allocation. However, this should not be
done using the PFN. This adds the missing conversion to
virtual address.

Fixes: 2ac02e5ece ("powerpc/mm: Remove dcache flush from memory remove.")
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210501160254.1179831-1-sandipan@linux.ibm.com
2021-05-04 22:27:56 +10:00
Sourabh Jain
40c753993e powerpc/kexec_file: Use current CPU info while setting up FDT
kexec_file_load() uses initial_boot_params in setting up the device tree
for the kernel to be loaded. Though initial_boot_params holds info about
CPUs at the time of boot, it doesn't account for hot added CPUs.

So, kexec'ing with kexec_file_load() syscall leaves the kexec'ed kernel
with inaccurate CPU info.

If kdump kernel is loaded with kexec_file_load() syscall and the system
crashes on a hot added CPU, the capture kernel hangs failing to identify
the boot CPU, with no output.

To avoid this from happening, extract current CPU info from of_root
device node and use it for setting up the fdt in kexec_file_load case.

Fixes: 6ecd0163d3 ("powerpc/kexec_file: Add appropriate regions for memory reserve map")
Cc: stable@vger.kernel.org # v5.9+
Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Reviewed-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210429060256.199714-1-sourabhjain@linux.ibm.com
2021-05-04 22:26:57 +10:00
Takashi Iwai
5d84b5318d ALSA: hda/realtek: Add fixup for HP OMEN laptop
HP OMEN dc0019-ur with codec SSID 103c:84da requires the pin config
overrides and the existing mic/mute LED setup.  This patch implements
those in the fixup table.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=212733
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210504121832.4558-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-05-04 14:19:05 +02:00
Greentime Hu
43cea116be dt-bindings: PCI: Add SiFive FU740 PCIe host controller
Add PCIe host controller DT bindings of SiFive FU740.

Link: https://lore.kernel.org/r/20210504105940.100004-5-greentime.hu@sifive.com
Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2021-05-04 12:26:09 +01:00
Greentime Hu
2da0dd5e30 MAINTAINERS: Add maintainers for SiFive FU740 PCIe driver
Here add maintainer information for SiFive FU740 PCIe driver.

Link: https://lore.kernel.org/r/20210504105940.100004-4-greentime.hu@sifive.com
Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2021-05-04 12:26:09 +01:00
Greentime Hu
e4d368e0b6 clk: sifive: Use reset-simple in prci driver for PCIe driver
We use reset-simple in this patch so that pcie driver can use
devm_reset_control_get() to get this reset data structure and use
reset_control_deassert() to deassert pcie_power_up_rst_n.

Link: https://lore.kernel.org/r/20210504105940.100004-3-greentime.hu@sifive.com
Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Stephen Boyd <sboyd@kernel.org>
2021-05-04 12:26:09 +01:00
Greentime Hu
c61287bf17 clk: sifive: Add pcie_aux clock in prci driver for PCIe driver
We add pcie_aux clock in this patch so that pcie driver can use
clk_prepare_enable() and clk_disable_unprepare() to enable and disable
pcie_aux clock.

Link: https://lore.kernel.org/r/20210504105940.100004-2-greentime.hu@sifive.com
Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
2021-05-04 12:26:09 +01:00
Takashi Iwai
622464c893 ALSA: hda/realtek: Fix speaker amp on HP Envy AiO 32
HP Envy AiO 32-a12xxx has an external amp that is controlled via GPIO
bit 0x04.  However, unlike other devices, this amp seems to shut down
itself after the certain period, hence the OS needs to up/down the bit
dynamically only during the actual playback.

This patch adds the control of the GPIO bit via the existing pcm_hook
mechanism.  Ideally it should be triggered at the actual stream start,
but we have only the state change at prepare/cleanup, so use those for
switching the GPIO bit on/off.  This should be good enough for the
purpose, and was actually confirmed to work fine.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=212873
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210504091802.13200-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-05-04 11:19:21 +02:00
Takashi Iwai
8eedd3a70a ALSA: hda/realtek: Fix silent headphone output on ASUS UX430UA
It was reported that the headphone output on ASUS UX430UA (SSID
1043:1740) with ALC295 codec is silent while the speaker works.
After the investigation, it turned out that the DAC assignment has to
be fixed on this machine; unlike others, it expects DAC 0x02 to be
assigned to the speaker pin 0x07 while DAC 0x03 to headphone pin
0x21.

This patch provides a fixup for the fixed DAC/pin mapping for this
device.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=212933
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210504082057.6913-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-05-04 10:41:20 +02:00
Michael S. Tsirkin
d7bce85aa7 virtio_pci_modern: correct sparse tags for notify
When switching virtio_pci_modern to use a helper for mappings we lost an
__iomem tag. Restore it.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 9e3bb9b79a ("virtio_pci_modern: introduce helper to map vq notify area")
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-05-04 04:19:59 -04:00
Michael S. Tsirkin
0f8a0b0b09 virtio_pci_modern: __force cast the notify mapping
When switching virtio_pci_modern to use a helper for mappings we lost an
__iomem tag. We should restore it.

However, virtio_pci_modern is playing tricks by hiding an iomem pointer
in a regular vq->priv pointer. Which is okay as long as it's
all contained within a single file, but we need to __force cast
the value otherwise we'll get sparse warnings.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 7dca6c0ea9 ("virtio-pci library: switch to use vp_modern_map_vq_notify()")
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-05-04 04:19:58 -04:00
Keith Busch
4a20342572 nvmet: remove unsupported command noise
Nothing can stop a host from submitting invalid commands. The target
just needs to respond with an appropriate status, but that's not a
target error. Demote invalid command messages to the debug level so
these events don't spam the kernel logs.

Reported-by: Yi Zhang <yi.zhang@redhat.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2021-05-04 09:39:26 +02:00
Daniel Wagner
ce86dad222 nvme-multipath: reset bdev to ns head when failover
When a request finally completes in end_io() after it has failed over,
the bdev pointer can be stale and thus the system can crash. Set the
bdev back to ns head, so the request is map to an active path when
resubmitted.

Signed-off-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2021-05-04 09:39:23 +02:00
Tao Chiu
d4060d2be1 nvme-pci: fix controller reset hang when racing with nvme_timeout
reset_work() in nvme-pci may hang forever in the following scenario:
1) A reset caused by a command timeout occurs due to a controller being
   temporarily irresponsive.
2) nvme_reset_work() restarts admin queue at nvme_alloc_admin_tags(). At
   the same time, a user-submitted admin command is queued and waiting
   for completion. Then, reset_work() changes its state to CONNECTING,
   and submits an identify command.
3) However, the controller does still not respond to any command,
   causing a timeout being fired at the user-submitted command.
   Unfortunately, nvme_timeout() does not see the completion on cq, and
   any timeout that takes place under CONNECTING state causes a
   controller shutdown.
4) Normally, the identify command in reset_work() would be canceled with
   SC_HOST_ABORTED by nvme_dev_disable(), then reset_work can tear down
   the controller accordingly. But the controller happens to return
   online and respond the identify command before nvme_dev_disable()
   should have been reaped it off.
5) reset_work() continues to setup_io_queues() as it observes no error
   in init_identify(). However, the admin queue has already been
   quiesced in dev_disable(). Thus, any following commands would be
   blocked forever in blk_execute_rq().

This can be fixed by restricting usercmd commands when controller is not
in a LIVE state in nvme_queue_rq(), as what has been done previously in
fabrics.

```
nvme_reset_work():                     |
    nvme_alloc_admin_tags()            |
                                       | nvme_submit_user_cmd():
    nvme_init_identify():              |     ...
        __nvme_submit_sync_cmd():      |
            ...                        |     ...
---------------------------------------> nvme_timeout():
(Controller starts reponding commands) |     nvme_dev_disable(, true):
    nvme_setup_io_queues():            |
        __nvme_submit_sync_cmd():      |
            (hung in blk_execute_rq    |
             since run_hw_queue sees   |
             queue quiesced)           |

```

Signed-off-by: Tao Chiu <taochiu@synology.com>
Signed-off-by: Cody Wong <codywong@synology.com>
Reviewed-by: Leon Chien <leonchien@synology.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2021-05-04 09:35:50 +02:00
Tao Chiu
a97157440e nvme: move the fabrics queue ready check routines to core
queue_rq() in pci only checks if the dispatched queue (nvmeq) is ready,
e.g. not being suspended. Since nvme_alloc_admin_tags() in reset flow
restarts the admin queue, users are able to submit admin commands to a
controller before reset_work() completes. Commands submitted under this
condition may interfere with commands that performs identify, IO queue
setup in reset_work(), and may result in a hang described in the
following patch.

As seen in the fabrics, user commands are prevented from being executed
under inproper controller states. We may reuse this logic to maintain a
clear admin queue during reset_work().

Signed-off-by: Tao Chiu <taochiu@synology.com>
Signed-off-by: Cody Wong <codywong@synology.com>
Reviewed-by: Leon Chien <leonchien@synology.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2021-05-04 09:35:49 +02:00
Kanchan Joshi
51ad06cd69 nvme: avoid memset for passthrough requests
nvme_clear_nvme_request() clears the nvme_command, which is unncessary
for passthrough requests as nvme_command is overwritten immediately.
Move clearing part from this helper to the caller, so that double memset
for passthrough requests is avoided.

Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2021-05-04 09:35:49 +02:00
Kanchan Joshi
4c74d1f803 nvme: add nvme_get_ns helper
Add a helper to avoid opencoding ns->kref increment.
Decrement is already done via nvme_put_ns helper.

Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2021-05-04 09:35:48 +02:00