mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-09-03 09:37:17 +00:00
3719a04a80
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Merge tag 'pci-v6.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Print the actual delay time in pci_bridge_wait_for_secondary_bus()
instead of assuming it was 1000ms (Wilfred Mallawa)
- Revert 'iommu/amd: Prevent binding other PCI drivers to IOMMU PCI
devices', which broke resume from system sleep on AMD platforms and
has been fixed by other commits (Lukas Wunner)
Resource management:
- Remove mtip32xx use of pcim_iounmap_regions(), which is deprecated
and unnecessary (Philipp Stanner)
- Remove pcim_iounmap_regions() and pcim_request_region_exclusive()
and related flags since all uses have been removed (Philipp
Stanner)
- Rework devres 'request' functions so they are no longer 'hybrid',
i.e., their behavior no longer depends on whether
pcim_enable_device or pci_enable_device() was used, and remove
related code (Philipp Stanner)
- Warn (not BUG()) about failure to assign optional resources (Ilpo
Järvinen)
Error handling:
- Log the DPC Error Source ID only when it's actually valid (when
ERR_FATAL or ERR_NONFATAL was received from a downstream device)
and decode into bus/device/function (Bjorn Helgaas)
- Determine AER log level once and save it so all related messages
use the same level (Karolina Stolarek)
- Use KERN_WARNING, not KERN_ERR, when logging PCIe Correctable
Errors (Karolina Stolarek)
- Ratelimit PCIe Correctable and Non-Fatal error logging, with sysfs
controls on interval and burst count, to avoid flooding logs and
RCU stall warnings (Jon Pan-Doh)
Power management:
- Increment PM usage counter when probing reset methods so we don't
try to read config space of a powered-off device (Alex Williamson)
- Set all devices to D0 during enumeration to ensure ACPI opregion is
connected via _REG (Mario Limonciello)
Power control:
- Rename pwrctrl Kconfig symbols from 'PWRCTL' to 'PWRCTRL' to match
the filename paths. Retain old deprecated symbols for
compatibility, except for the pwrctrl slot driver
(PCI_PWRCTRL_SLOT) (Johan Hovold)
- When unregistering pwrctrl, cancel outstanding rescan work before
cleaning up data structures to avoid use-after-free issues (Brian
Norris)
Bandwidth control:
- Simplify link bandwidth controller by replacing the count of Link
Bandwidth Management Status (LBMS) events with a PCI_LINK_LBMS_SEEN
flag (Ilpo Järvinen)
- Update the Link Speed after retraining, since the Link Speed may
have changed (Ilpo Järvinen)
PCIe native device hotplug:
- Ignore Presence Detect Changed caused by DPC.
pciehp already ignores Link Down/Up events caused by DPC, but on
slots using in-band presence detect, DPC causes a spurious Presence
Detect Changed event (Lukas Wunner)
- Ignore Link Down/Up caused by Secondary Bus Reset.
On hotplug ports using in-band presence detect, the reset causes a
Presence Detect Changed event, which mistakenly caused teardown and
re-enumeration of the device. Drivers may need to annotate code
that resets their device (Lukas Wunner)
Virtualization:
- Add an ACS quirk for Loongson Root Ports that don't advertise ACS
but don't allow peer-to-peer transactions between Root Ports; the
quirk allows each Root Port to be in a separate IOMMU group (Huacai
Chen)
Endpoint framework:
- For fixed-size BARs, retain both the actual size and the possibly
larger size allocated to accommodate iATU alignment requirements
(Jerome Brunet)
- Simplify ctrl/SPAD space allocation and avoid allocating more space
than needed (Jerome Brunet)
- Correct MSI-X PBA offset calculations for DesignWare and Cadence
endpoint controllers (Niklas Cassel)
- Align the return value (number of interrupts) encoding for
pci_epc_get_msi()/pci_epc_ops::get_msi() and
pci_epc_get_msix()/pci_epc_ops::get_msix() (Niklas Cassel)
- Align the nr_irqs parameter encoding for
pci_epc_set_msi()/pci_epc_ops::set_msi() and
pci_epc_set_msix()/pci_epc_ops::set_msix() (Niklas Cassel)
Common host controller library:
- Convert pci-host-common to a library so platforms that don't need
native host controller drivers don't need to include these helper
functions (Manivannan Sadhasivam)
Apple PCIe controller driver:
- Extract ECAM bridge creation helper from pci_host_common_probe() to
separate driver-specific things like MSI from PCI things (Marc
Zyngier)
- Dynamically allocate RID-to_SID bitmap to prepare for SoCs with
varying capabilities (Marc Zyngier)
- Skip ports disabled in DT when setting up ports (Janne Grunau)
- Add t6020 compatible string (Alyssa Rosenzweig)
- Add T602x PCIe support (Hector Martin)
- Directly set/clear INTx mask bits because T602x dropped the
accessors that could do this without locking (Marc Zyngier)
- Move port PHY registers to their own reg items to accommodate
T602x, which moves them around; retain default offsets for existing
DTs that lack phy%d entries with the reg offsets (Hector Martin)
- Stop polling for core refclk, which doesn't work on T602x and the
bootloader has already done anyway (Hector Martin)
- Use gpiod_set_value_cansleep() when asserting PERST# in probe
because we're allowed to sleep there (Hector Martin)
Cadence PCIe controller driver:
- Drop a runtime PM 'put' to resolve a runtime atomic count underflow
(Hans Zhang)
- Make the cadence core buildable as a module (Kishon Vijay Abraham I)
- Add cdns_pcie_host_disable() and cdns_pcie_ep_disable() for use by
loadable drivers when they are removed (Siddharth Vadapalli)
Freescale i.MX6 PCIe controller driver:
- Apply link training workaround only on IMX6Q, IMX6SX, IMX6SP
(Richard Zhu)
- Remove redundant dw_pcie_wait_for_link() from
imx_pcie_start_link(); since the DWC core does this, imx6 only
needs it when retraining for a faster link speed (Richard Zhu)
- Toggle i.MX95 core reset to align with PHY powerup (Richard Zhu)
- Set SYS_AUX_PWR_DET to work around i.MX95 ERR051624 erratum: in
some cases, the controller can't exit 'L23 Ready' through Beacon or
PERST# deassertion (Richard Zhu)
- Clear GEN3_ZRXDC_NONCOMPL to work around i.MX95 ERR051586 erratum:
controller can't meet 2.5 GT/s ZRX-DC timing when operating at 8
GT/s, causing timeouts in L1 (Richard Zhu)
- Wait for i.MX95 PLL lock before enabling controller (Richard Zhu)
- Save/restore i.MX95 LUT for suspend/resume (Richard Zhu)
Mobiveil PCIe controller driver:
- Return bool (not int) for link-up check in
mobiveil_pab_ops.link_up() and layerscape-gen4, mobiveil (Hans
Zhang)
NVIDIA Tegra194 PCIe controller driver:
- Create debugfs directory for 'aspm_state_cnt' only when
CONFIG_PCIEASPM is enabled, since there are no other entries (Hans
Zhang)
Qualcomm PCIe controller driver:
- Add OF support for parsing DT 'eq-presets-<N>gts' property for lane
equalization presets (Krishna Chaitanya Chundru)
- Read Maximum Link Width from the Link Capabilities register if DT
lacks 'num-lanes' property (Krishna Chaitanya Chundru)
- Add Physical Layer 64 GT/s Capability ID and register offsets for
8, 32, and 64 GT/s lane equalization registers (Krishna Chaitanya
Chundru)
- Add generic dwc support for configuring lane equalization presets
(Krishna Chaitanya Chundru)
- Add DT and driver support for PCIe on IPQ5018 SoC (Nitheesh Sekar)
Renesas R-Car PCIe controller driver:
- Describe endpoint BAR 4 as being fixed size (Jerome Brunet)
- Document how to obtain R-Car V4H (r8a779g0) controller firmware
(Yoshihiro Shimoda)
Rockchip PCIe controller driver:
- Reorder rockchip_pci_core_rsts because
reset_control_bulk_deassert() deasserts in reverse order, to fix a
link training regression (Jensen Huang)
- Mark RK3399 as being capable of raising INTx interrupts (Niklas
Cassel)
Rockchip DesignWare PCIe controller driver:
- Check only PCIE_LINKUP, not LTSSM status, to determine whether the
link is up (Shawn Lin)
- Increase N_FTS (used in L0s->L0 transitions) and enable ASPM L0s
for Root Complex and Endpoint modes (Shawn Lin)
- Hide the broken ATS Capability in rockchip_pcie_ep_init() instead
of rockchip_pcie_ep_pre_init() so it stays hidden after PERST#
resets non-sticky registers (Shawn Lin)
- Call phy_power_off() before phy_exit() in rockchip_pcie_phy_deinit()
(Diederik de Haas)
Synopsys DesignWare PCIe controller driver:
- Set PORT_LOGIC_LINK_WIDTH to one lane to make initial link training
more robust; this will not affect the intended link width if all
lanes are functional (Wenbin Yao)
- Return bool (not int) for link-up check in dw_pcie_ops.link_up()
and armada8k, dra7xx, dw-rockchip, exynos, histb, keembay,
keystone, kirin, meson, qcom, qcom-ep, rcar_gen4, spear13xx,
tegra194, uniphier, visconti (Hans Zhang)
- Add debugfs support for exposing DWC device-specific PTM context
(Manivannan Sadhasivam)
TI J721E PCIe driver:
- Make j721e buildable as a loadable and removable module (Siddharth
Vadapalli)
- Fix j721e host/endpoint dependencies that result in link failures
in some configs (Arnd Bergmann)
Device tree bindings:
- Add qcom DT binding for 'global' interrupt (PCIe controller and
link-specific events) for ipq8074, ipq8074-gen3, ipq6018, sa8775p,
sc7280, sc8180x sdm845, sm8150, sm8250, sm8350 (Manivannan
Sadhasivam)
- Add qcom DT binding for 8 MSI SPI interrupts for msm8998, ipq8074,
ipq8074-gen3, ipq6018 (Manivannan Sadhasivam)
- Add dw rockchip DT binding for rk3576 and rk3562 (Kever Yang)
- Correct indentation and style of examples in brcm,stb-pcie,
cdns,cdns-pcie-ep, intel,keembay-pcie-ep, intel,keembay-pcie,
microchip,pcie-host, rcar-pci-ep, rcar-pci-host, xilinx-versal-cpm
(Krzysztof Kozlowski)
- Convert Marvell EBU (dove, kirkwood, armada-370, armada-xp) and
armada8k from text to schema DT bindings (Rob Herring)
- Remove obsolete .txt DT bindings for content that has been moved to
schemas (Rob Herring)
- Add qcom DT binding for MHI registers in IPQ5332, IPQ6018, IPQ8074
and IPQ9574 (Varadarajan Narayanan)
- Convert v3,v360epc-pci from text to DT schema binding (Rob Herring)
- Change microchip,pcie-host DT binding to be 'dma-noncoherent' since
PolarFire may be configured that way (Conor Dooley)
Miscellaneous:
- Drop 'pci' suffix from intel_mid_pci.c filename to match similar
files (Andy Shevchenko)
- All platforms with PCI have an MMU, so add PCI Kconfig dependency
on MMU to simplify build testing and avoid inadvertent build
regressions (Arnd Bergmann)
- Update Krzysztof Wilczyński's email address in MAINTAINERS
(Krzysztof Wilczyński)
- Update Manivannan Sadhasivam's email address in MAINTAINERS
(Manivannan Sadhasivam)"
* tag 'pci-v6.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (147 commits)
MAINTAINERS: Update Manivannan Sadhasivam email address
PCI: j721e: Fix host/endpoint dependencies
PCI: j721e: Add support to build as a loadable module
PCI: cadence-ep: Introduce cdns_pcie_ep_disable() helper for cleanup
PCI: cadence-host: Introduce cdns_pcie_host_disable() helper for cleanup
PCI: cadence: Add support to build pcie-cadence library as a kernel module
MAINTAINERS: Update Krzysztof Wilczyński email address
PCI: Remove unnecessary linesplit in __pci_setup_bridge()
PCI: WARN (not BUG()) when we fail to assign optional resources
PCI: Remove unused pci_printk()
PCI: qcom: Replace PERST# sleep time with proper macro
PCI: dw-rockchip: Replace PERST# sleep time with proper macro
PCI: host-common: Convert to library for host controller drivers
PCI/ERR: Remove misleading TODO regarding kernel panic
PCI: cadence: Remove duplicate message code definitions
PCI: endpoint: Align pci_epc_set_msix(), pci_epc_ops::set_msix() nr_irqs encoding
PCI: endpoint: Align pci_epc_set_msi(), pci_epc_ops::set_msi() nr_irqs encoding
PCI: endpoint: Align pci_epc_get_msix(), pci_epc_ops::get_msix() return value encoding
PCI: endpoint: Align pci_epc_get_msi(), pci_epc_ops::get_msi() return value encoding
PCI: cadence-ep: Correct PBA offset in .set_msix() callback
...
202 lines
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# SPDX-License-Identifier: GPL-2.0-only
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config DRM_APPLETBDRM
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tristate "DRM support for Apple Touch Bars"
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depends on DRM && USB && MMU
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depends on X86 || COMPILE_TEST
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select DRM_GEM_SHMEM_HELPER
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select DRM_KMS_HELPER
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help
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Say Y here if you want support for the display of Touch Bars on x86
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MacBook Pros.
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To compile this driver as a module, choose M here: the
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module will be called appletbdrm.
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config DRM_ARCPGU
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tristate "ARC PGU"
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depends on DRM && OF
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select DRM_CLIENT_SELECTION
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select DRM_GEM_DMA_HELPER
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select DRM_KMS_HELPER
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help
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Choose this option if you have an ARC PGU controller.
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If M is selected the module will be called arcpgu.
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config DRM_BOCHS
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tristate "DRM Support for bochs dispi vga interface (qemu stdvga)"
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depends on DRM && PCI && MMU
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select DRM_CLIENT_SELECTION
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select DRM_GEM_SHMEM_HELPER
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select DRM_KMS_HELPER
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help
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This is a KMS driver for qemu's stdvga output. Choose this option
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for qemu.
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If M is selected the module will be called bochs.
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config DRM_CIRRUS_QEMU
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tristate "Cirrus driver for QEMU emulated device"
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depends on DRM && PCI
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select DRM_CLIENT_SELECTION
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select DRM_KMS_HELPER
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select DRM_GEM_SHMEM_HELPER
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help
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This is a KMS driver for emulated cirrus device in qemu.
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It is *NOT* intended for real cirrus devices. This requires
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the modesetting userspace X.org driver.
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Cirrus is obsolete, the hardware was designed in the 90ies
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and can't keep up with todays needs. More background:
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https://www.kraxel.org/blog/2014/10/qemu-using-cirrus-considered-harmful/
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Better alternatives are:
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- stdvga (DRM_BOCHS, qemu -vga std, default in qemu 2.2+)
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- qxl (DRM_QXL, qemu -vga qxl, works best with spice)
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- virtio (DRM_VIRTIO_GPU), qemu -vga virtio)
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config DRM_GM12U320
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tristate "GM12U320 driver for USB projectors"
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depends on DRM && USB && MMU
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select DRM_CLIENT_SELECTION
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select DRM_KMS_HELPER
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select DRM_GEM_SHMEM_HELPER
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help
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This is a KMS driver for projectors which use the GM12U320 chipset
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for video transfer over USB2/3, such as the Acer C120 mini projector.
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config DRM_PANEL_MIPI_DBI
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tristate "DRM support for MIPI DBI compatible panels"
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depends on DRM && SPI
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select DRM_CLIENT_SELECTION
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select DRM_KMS_HELPER
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select DRM_GEM_DMA_HELPER
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select DRM_MIPI_DBI
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select BACKLIGHT_CLASS_DEVICE
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select VIDEOMODE_HELPERS
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help
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Say Y here if you want to enable support for MIPI DBI compatible
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panels. The controller command setup can be provided using a
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firmware file. For more information see
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https://github.com/notro/panel-mipi-dbi/wiki.
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To compile this driver as a module, choose M here.
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config TINYDRM_HX8357D
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tristate "DRM support for HX8357D display panels"
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depends on DRM && SPI
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select DRM_CLIENT_SELECTION
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select DRM_KMS_HELPER
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select DRM_GEM_DMA_HELPER
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select DRM_MIPI_DBI
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select BACKLIGHT_CLASS_DEVICE
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help
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DRM driver for the following HX8357D panels:
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* YX350HV15-T 3.5" 340x350 TFT (Adafruit 3.5")
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If M is selected the module will be called hx8357d.
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config TINYDRM_ILI9163
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tristate "DRM support for ILI9163 display panels"
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depends on DRM && SPI
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select BACKLIGHT_CLASS_DEVICE
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select DRM_CLIENT_SELECTION
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select DRM_GEM_DMA_HELPER
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select DRM_KMS_HELPER
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select DRM_MIPI_DBI
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help
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DRM driver for the following Ilitek ILI9163 panels:
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* NHD-1.8-128160EF 128x160 TFT
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If M is selected the module will be called ili9163.
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config TINYDRM_ILI9225
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tristate "DRM support for ILI9225 display panels"
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depends on DRM && SPI
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select DRM_CLIENT_SELECTION
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select DRM_KMS_HELPER
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select DRM_GEM_DMA_HELPER
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select DRM_MIPI_DBI
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help
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DRM driver for the following Ilitek ILI9225 panels:
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* No-name 2.2" color screen module
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If M is selected the module will be called ili9225.
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config TINYDRM_ILI9341
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tristate "DRM support for ILI9341 display panels"
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depends on DRM && SPI
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select DRM_CLIENT_SELECTION
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select DRM_KMS_HELPER
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select DRM_GEM_DMA_HELPER
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select DRM_MIPI_DBI
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select BACKLIGHT_CLASS_DEVICE
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help
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DRM driver for the following Ilitek ILI9341 panels:
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* YX240QV29-T 2.4" 240x320 TFT (Adafruit 2.4")
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If M is selected the module will be called ili9341.
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config TINYDRM_ILI9486
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tristate "DRM support for ILI9486 display panels"
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depends on DRM && SPI
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select DRM_CLIENT_SELECTION
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select DRM_KMS_HELPER
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select DRM_GEM_DMA_HELPER
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select DRM_MIPI_DBI
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select BACKLIGHT_CLASS_DEVICE
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help
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DRM driver for the following Ilitek ILI9486 panels:
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* PISCREEN 3.5" 320x480 TFT (Ozzmaker 3.5")
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* RPILCD 3.5" 320x480 TFT (Waveshare 3.5")
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If M is selected the module will be called ili9486.
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config TINYDRM_MI0283QT
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tristate "DRM support for MI0283QT"
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depends on DRM && SPI
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select DRM_CLIENT_SELECTION
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select DRM_KMS_HELPER
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select DRM_GEM_DMA_HELPER
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select DRM_MIPI_DBI
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select BACKLIGHT_CLASS_DEVICE
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help
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DRM driver for the Multi-Inno MI0283QT display panel
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If M is selected the module will be called mi0283qt.
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config TINYDRM_REPAPER
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tristate "DRM support for Pervasive Displays RePaper panels (V231)"
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depends on DRM && SPI
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select DRM_CLIENT_SELECTION
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select DRM_KMS_HELPER
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select DRM_GEM_DMA_HELPER
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help
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DRM driver for the following Pervasive Displays panels:
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1.44" TFT EPD Panel (E1144CS021)
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1.90" TFT EPD Panel (E1190CS021)
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2.00" TFT EPD Panel (E2200CS021)
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2.71" TFT EPD Panel (E2271CS021)
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If M is selected the module will be called repaper.
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config TINYDRM_SHARP_MEMORY
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tristate "DRM support for Sharp Memory LCD panels"
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depends on DRM && SPI
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select DRM_CLIENT_SELECTION
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select DRM_GEM_DMA_HELPER
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select DRM_KMS_HELPER
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help
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DRM Driver for the following Sharp Memory Panels:
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* 1.00" Sharp Memory LCD (LS010B7DH04)
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* 1.10" Sharp Memory LCD (LS011B7DH03)
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* 1.20" Sharp Memory LCD (LS012B7DD01)
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* 1.28" Sharp Memory LCD (LS013B7DH03)
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* 1.26" Sharp Memory LCD (LS013B7DH05)
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* 1.80" Sharp Memory LCD (LS018B7DH02)
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* 2.70" Sharp Memory LCD (LS027B7DH01)
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* 2.70" Sharp Memory LCD (LS027B7DH01A)
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* 3.20" Sharp Memory LCD (LS032B7DD02)
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* 4.40" Sharp Memory LCD (LS044Q7DH01)
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If M is selected the module will be called sharp_memory.
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