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Author SHA1 Message Date
Dave Airlie 1cd260a790 drm-misc-next for 5.11:
UAPI Changes:
 
   - doc: rules for EBUSY on non-blocking commits; requirements for fourcc
     modifiers; on parsing EDID
   - fbdev/sbuslib: Remove unused FBIOSCURSOR32
   - fourcc: deprecate DRM_FORMAT_MOD_NONE
   - virtio: Support blob resources for memory allocations; Expose host-visible
     and cross-device features
 
 Cross-subsystem Changes:
 
   - devicetree: Add vendor Prefix for Yes Optoelectronics, Shanghai Top Display
     Optoelectronics
   - dma-buf: Add struct dma_buf_map that stores DMA pointer and I/O-memory flag;
     dma_buf_vmap()/vunmap() return address in dma_buf_map; Use struct_size() macro
 
 Core Changes:
 
   - atomic: pass full state to CRTC atomic enable/disable; warn for EBUSY during
     non-blocking commits
   - dp: Prepare for DP 2.0 DPCD
   - dp_mst: Receive extended DPCD caps
   - dma-buf: Documentation
   - doc: Format modifiers; dma-buf-map; Cleanups
   - fbdev: Don't use compat_alloc_user_space(); mark as orphaned
   - fb-helper: Take lock in drm_fb_helper_restore_work_fb()
   - gem: Convert implementation and drivers to GEM object functions, remove
     GEM callbacks from struct drm_driver (expect gem_prime_mmap)
   - panel: Cleanups
   - pci: Add legacy infix to drm_irq_by_busid()
   - sched: Avoid infinite waits in drm_sched_entity_destroy()
   - switcheroo: Cleanups
   - ttm: Remove AGP support; Don't modify caching during swapout; Major
     refactoring of the implementation and API that affects all depending
     drivers; Add ttm_bo_wait_ctx(); Add ttm_bo_pin()/unpin() in favor of
     TTM_PL_FLAG_NO_EVICT; Remove ttm_bo_create(); Remove fault_reserve_notify()
     callback; Push move() implementation into drivers; Remove TTM_PAGE_FLAG_WRITE;
     Replace caching flags with init-time cache setting; Push ttm_tt_bind() into
     drivers; Replace move_notify() with delete_mem_notify(); No overlapping memcpy();
     no more ttm_set_populated()
   - vram-helper: Fix BO top-down placement; TTM-related changes; Init GEM
     object functions with defaults; Default placement in system memory; Cleanups
 
 Driver Changes:
 
   - amdgpu: Use GEM object functions
   - armada: Use GEM object functions
   - aspeed: Configure output via sysfs; Init struct drm_driver with
   - ast: Reload LUT after FB format changes
   - bridge: Add driver and DT bindings for anx7625; Cleanups
   - bridge/dw-hdmi: Constify ops
   - bridge/ti-sn65dsi86: Add retries for link training
   - bridge/lvds-codec: Add support for regulator
   - bridge/tc358768: Restore connector support DRM_GEM_CMA_DRIVEROPS; Cleanups
   - display/ti,j721e-dss: Add DT properies assigned-clocks, assigned-clocks-parent and
     dma-coherent
   - display/ti,am65s-dss: Add DT properies assigned-clocks, assigned-clocks-parent and
     dma-coherent
   - etnaviv: Use GEM object functions
   - exynos: Use GEM object functions
   - fbdev: Cleanups and compiler fixes throughout framebuffer drivers
   - fbdev/cirrusfb: Avoid division by 0
   - gma500: Use GEM object functions; Fix double-free of connector; Cleanups
   - hisilicon/hibmc: I2C-based DDC support; Use to_hibmc_drm_device(); Cleanups
   - i915: Use GEM object functions
   - imx/dcss: Init driver with DRM_GEM_CMA_DRIVER_OPS; Cleanups
   - ingenic: Reset pixel clock when parent clock changes; support reserved
     memory; Alloc F0 and F1 DMA channels at once; Support different pixel formats;
     Revert support for cached mmap buffers
     on F0/F1; support 30-bit/24-bit/8-bit-palette modes
   - komeda: Use DEFINE_SHOW_ATTRIBUTE
   - mcde: Detect platform_get_irq() errors
   - mediatek: Use GEM object functions
   - msm: Use GEM object functions
   - nouveau: Cleanups; TTM-related changes; Use GEM object functions
   - omapdrm: Use GEM object functions
   - panel: Add driver and DT bindings for Novatak nt36672a; Add driver and DT
     bindings for YTC700TLAG-05-201C; Add driver and DT bindings for TDO TL070WSH30;
     Cleanups
   - panel/mantix: Fix reset; Fix deref of NULL pointer in mantix_get_modes()
   - panel/otm8009a: Allow non-continuous dsi clock; Cleanups
   - panel/rm68200: Allow non-continuous dsi clock; Fix mode to 50 FPS
   - panfrost: Fix job timeout handling; Cleanups
   - pl111: Use GEM object functions
   - qxl: Cleanups; TTM-related changes; Pin new BOs with ttm_bo_init_reserved()
   - radeon: Cleanups; TTM-related changes; Use GEM object functions
   - rockchip: Use GEM object functions
   - shmobile: Cleanups
   - tegra: Use GEM object functions
   - tidss: Set drm_plane_helper_funcs.prepare_fb
   - tilcdc: Don't keep vblank interrupt enabled all the time
   - tve200: Detect platform_get_irq() errors
   - vc4: Use GEM object functions; Only register components once DSI is attached;
     Add Maxime as maintainer
   - vgem: Use GEM object functions
   - via: Simplify critical section in via_mem_alloc()
   - virtgpu: Use GEM object functions
   - virtio: Implement blob resources, host-visible and cross-device features;
     Support mapping of host-allocated resources; Use UUID APi; Cleanups
   - vkms: Use GEM object functions; Switch to SHMEM
   - vmwgfx: TTM-related changes; Inline ttm_bo_swapout_all()
   - xen: Use GEM object functions
   - xlnx: Use GEM object functions
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Merge tag 'drm-misc-next-2020-10-27' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.11:

UAPI Changes:

  - doc: rules for EBUSY on non-blocking commits; requirements for fourcc
    modifiers; on parsing EDID
  - fbdev/sbuslib: Remove unused FBIOSCURSOR32
  - fourcc: deprecate DRM_FORMAT_MOD_NONE
  - virtio: Support blob resources for memory allocations; Expose host-visible
    and cross-device features

Cross-subsystem Changes:

  - devicetree: Add vendor Prefix for Yes Optoelectronics, Shanghai Top Display
    Optoelectronics
  - dma-buf: Add struct dma_buf_map that stores DMA pointer and I/O-memory flag;
    dma_buf_vmap()/vunmap() return address in dma_buf_map; Use struct_size() macro

Core Changes:

  - atomic: pass full state to CRTC atomic enable/disable; warn for EBUSY during
    non-blocking commits
  - dp: Prepare for DP 2.0 DPCD
  - dp_mst: Receive extended DPCD caps
  - dma-buf: Documentation
  - doc: Format modifiers; dma-buf-map; Cleanups
  - fbdev: Don't use compat_alloc_user_space(); mark as orphaned
  - fb-helper: Take lock in drm_fb_helper_restore_work_fb()
  - gem: Convert implementation and drivers to GEM object functions, remove
    GEM callbacks from struct drm_driver (expect gem_prime_mmap)
  - panel: Cleanups
  - pci: Add legacy infix to drm_irq_by_busid()
  - sched: Avoid infinite waits in drm_sched_entity_destroy()
  - switcheroo: Cleanups
  - ttm: Remove AGP support; Don't modify caching during swapout; Major
    refactoring of the implementation and API that affects all depending
    drivers; Add ttm_bo_wait_ctx(); Add ttm_bo_pin()/unpin() in favor of
    TTM_PL_FLAG_NO_EVICT; Remove ttm_bo_create(); Remove fault_reserve_notify()
    callback; Push move() implementation into drivers; Remove TTM_PAGE_FLAG_WRITE;
    Replace caching flags with init-time cache setting; Push ttm_tt_bind() into
    drivers; Replace move_notify() with delete_mem_notify(); No overlapping memcpy();
    no more ttm_set_populated()
  - vram-helper: Fix BO top-down placement; TTM-related changes; Init GEM
    object functions with defaults; Default placement in system memory; Cleanups

Driver Changes:

  - amdgpu: Use GEM object functions
  - armada: Use GEM object functions
  - aspeed: Configure output via sysfs; Init struct drm_driver with
  - ast: Reload LUT after FB format changes
  - bridge: Add driver and DT bindings for anx7625; Cleanups
  - bridge/dw-hdmi: Constify ops
  - bridge/ti-sn65dsi86: Add retries for link training
  - bridge/lvds-codec: Add support for regulator
  - bridge/tc358768: Restore connector support DRM_GEM_CMA_DRIVEROPS; Cleanups
  - display/ti,j721e-dss: Add DT properies assigned-clocks, assigned-clocks-parent and
    dma-coherent
  - display/ti,am65s-dss: Add DT properies assigned-clocks, assigned-clocks-parent and
    dma-coherent
  - etnaviv: Use GEM object functions
  - exynos: Use GEM object functions
  - fbdev: Cleanups and compiler fixes throughout framebuffer drivers
  - fbdev/cirrusfb: Avoid division by 0
  - gma500: Use GEM object functions; Fix double-free of connector; Cleanups
  - hisilicon/hibmc: I2C-based DDC support; Use to_hibmc_drm_device(); Cleanups
  - i915: Use GEM object functions
  - imx/dcss: Init driver with DRM_GEM_CMA_DRIVER_OPS; Cleanups
  - ingenic: Reset pixel clock when parent clock changes; support reserved
    memory; Alloc F0 and F1 DMA channels at once; Support different pixel formats;
    Revert support for cached mmap buffers
    on F0/F1; support 30-bit/24-bit/8-bit-palette modes
  - komeda: Use DEFINE_SHOW_ATTRIBUTE
  - mcde: Detect platform_get_irq() errors
  - mediatek: Use GEM object functions
  - msm: Use GEM object functions
  - nouveau: Cleanups; TTM-related changes; Use GEM object functions
  - omapdrm: Use GEM object functions
  - panel: Add driver and DT bindings for Novatak nt36672a; Add driver and DT
    bindings for YTC700TLAG-05-201C; Add driver and DT bindings for TDO TL070WSH30;
    Cleanups
  - panel/mantix: Fix reset; Fix deref of NULL pointer in mantix_get_modes()
  - panel/otm8009a: Allow non-continuous dsi clock; Cleanups
  - panel/rm68200: Allow non-continuous dsi clock; Fix mode to 50 FPS
  - panfrost: Fix job timeout handling; Cleanups
  - pl111: Use GEM object functions
  - qxl: Cleanups; TTM-related changes; Pin new BOs with ttm_bo_init_reserved()
  - radeon: Cleanups; TTM-related changes; Use GEM object functions
  - rockchip: Use GEM object functions
  - shmobile: Cleanups
  - tegra: Use GEM object functions
  - tidss: Set drm_plane_helper_funcs.prepare_fb
  - tilcdc: Don't keep vblank interrupt enabled all the time
  - tve200: Detect platform_get_irq() errors
  - vc4: Use GEM object functions; Only register components once DSI is attached;
    Add Maxime as maintainer
  - vgem: Use GEM object functions
  - via: Simplify critical section in via_mem_alloc()
  - virtgpu: Use GEM object functions
  - virtio: Implement blob resources, host-visible and cross-device features;
    Support mapping of host-allocated resources; Use UUID APi; Cleanups
  - vkms: Use GEM object functions; Switch to SHMEM
  - vmwgfx: TTM-related changes; Inline ttm_bo_swapout_all()
  - xen: Use GEM object functions
  - xlnx: Use GEM object functions

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201027100936.GA4858@linux-uq9g
2020-11-04 11:49:10 +10:00
Linus Torvalds 31f020064f Char/Misc fixes/removals for 5.10-rc2
Here's some small fixes for 5.10-rc2 and a big driver removal.
 
 The fixes are for some reported issues in the interconnect and coresight
 drivers, nothing major.
 
 The "big" driver removal is the MIC drivers have been asked to be
 removed as the hardware never shipped and Intel no longer wants to
 maintain something that no one can use.  This is welcomed by many as the
 DMA usage of these drivers was "interesting" and the security people
 were starting to question some issues that were starting to be found in
 the codebase.
 
 Note, one of the subsystems for this driver, the "VOP" code, will
 probably come back in future kernel versions as it was looking to
 potentially solve some PCIe virtualization issues that a number of other
 vendors were wanting to solve.  But as-is, this codebase didn't work for
 anyone else so no actual functionality is being removed.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc fixes/removals from Greg KH:
 "Here's some small fixes for 5.10-rc2 and a big driver removal.

  The fixes are for some reported issues in the interconnect and
  coresight drivers, nothing major.

  The "big" driver removal is the MIC drivers have been asked to be
  removed as the hardware never shipped and Intel no longer wants to
  maintain something that no one can use. This is welcomed by many as
  the DMA usage of these drivers was "interesting" and the security
  people were starting to question some issues that were starting to be
  found in the codebase.

  Note, one of the subsystems for this driver, the "VOP" code, will
  probably come back in future kernel versions as it was looking to
  potentially solve some PCIe virtualization issues that a number of
  other vendors were wanting to solve. But as-is, this codebase didn't
  work for anyone else so no actual functionality is being removed.

  All of these have been in linux-next with no reported issues"

* tag 'char-misc-5.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  coresight: cti: Initialize dynamic sysfs attributes
  coresight: Fix uninitialised pointer bug in etm_setup_aux()
  coresight: add module license
  misc: mic: remove the MIC drivers
  interconnect: qcom: use icc_sync state for sm8[12]50
  interconnect: qcom: Ensure that the floor bandwidth value is enforced
  interconnect: qcom: sc7180: Init BCMs before creating the nodes
  interconnect: qcom: sdm845: Init BCMs before creating the nodes
  interconnect: Aggregate before setting initial bandwidth
  interconnect: qcom: sdm845: Enable keepalive for the MM1 BCM
2020-11-01 10:05:16 -08:00
Gustavo A. R. Silva b21de80ac1 mei: hw: Replace zero-length array with flexible-array member
There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.9/process/deprecated.html#zero-length-and-one-element-arrays

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-10-30 16:57:41 -05:00
Sudeep Dutt 80ade22c06 misc: mic: remove the MIC drivers
This patch removes the MIC drivers from the kernel tree
since the corresponding devices have been discontinued.

Removing the dma and char-misc changes in one patch and
merging via the char-misc tree is best to avoid any
potential build breakage.

Cc: Nikhil Rao <nikhil.rao@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Acked-By: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Sherry Sun <sherry.sun@nxp.com>
Link: https://lore.kernel.org/r/8c1443136563de34699d2c084df478181c205db4.1603854416.git.sudeep.dutt@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-28 19:12:03 +01:00
Linus Torvalds 00937f36b0 pci-v5.10-changes
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Merge tag 'pci-v5.10-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "Enumeration:
   - Print IRQ number used by PCIe Link Bandwidth Notification (Dongdong
     Liu)
   - Add schedule point in pci_read_config() to reduce max latency
     (Jiang Biao)
   - Add Kconfig options for MPS/MRRS strategy (Jim Quinlan)

  Resource management:
   - Fix pci_iounmap() memory leak when !CONFIG_GENERIC_IOMAP (Lorenzo
     Pieralisi)

  PCIe native device hotplug:
   - Reduce noisiness on hot removal (Lukas Wunner)

  Power management:
   - Revert "PCI/PM: Apply D2 delay as milliseconds, not microseconds"
     that was done on the basis of spec typo (Bjorn Helgaas)
   - Rename pci_dev.d3_delay to d3hot_delay to remove D3hot/D3cold
     ambiguity (Krzysztof Wilczyński)
   - Remove unused pcibios_pm_ops (Vaibhav Gupta)

  IOMMU:
   - Enable Translation Blocking for external devices to harden against
     DMA attacks (Rajat Jain)

  Error handling:
   - Add an ACPI APEI notifier chain for vendor CPER records to enable
     device-specific error handling (Shiju Jose)

  ASPM:
   - Remove struct aspm_register_info to simplify code (Saheed O.
     Bolarinwa)

  Amlogic Meson PCIe controller driver:
   - Build as module by default (Kevin Hilman)

  Ampere Altra PCIe controller driver:
   - Add MCFG quirk to work around non-standard ECAM implementation
     (Tuan Phan)

  Broadcom iProc PCIe controller driver:
   - Set affinity mask on MSI interrupts (Mark Tomlinson)

  Broadcom STB PCIe controller driver:
   - Make PCIE_BRCMSTB depend on ARCH_BRCMSTB (Jim Quinlan)
   - Add DT bindings for more Brcmstb chips (Jim Quinlan)
   - Add bcm7278 register info (Jim Quinlan)
   - Add bcm7278 PERST# support (Jim Quinlan)
   - Add suspend and resume pm_ops (Jim Quinlan)
   - Add control of rescal reset (Jim Quinlan)
   - Set additional internal memory DMA viewport sizes (Jim Quinlan)
   - Accommodate MSI for older chips (Jim Quinlan)
   - Set bus max burst size by chip type (Jim Quinlan)
   - Add support for bcm7211, bcm7216, bcm7445, bcm7278 (Jim Quinlan)

  Freescale i.MX6 PCIe controller driver:
   - Use dev_err_probe() to reduce redundant messages (Anson Huang)

  Freescale Layerscape PCIe controller driver:
   - Enforce 4K DMA buffer alignment in endpoint test (Hou Zhiqiang)
   - Add DT compatible strings for ls1088a, ls2088a (Xiaowei Bao)
   - Add endpoint support for ls1088a, ls2088a (Xiaowei Bao)
   - Add endpoint test support for lS1088a (Xiaowei Bao)
   - Add MSI-X support for ls1088a (Xiaowei Bao)

  HiSilicon HIP PCIe controller driver:
   - Handle HIP-specific errors via ACPI APEI (Yicong Yang)

  HiSilicon Kirin PCIe controller driver:
   - Return -EPROBE_DEFER if the GPIO isn't ready (Bean Huo)

  Intel VMD host bridge driver:
   - Factor out physical offset, bus offset, IRQ domain, IRQ allocation
     (Jon Derrick)
   - Use generic PCI PM correctly (Jon Derrick)

  Marvell Aardvark PCIe controller driver:
   - Fix compilation on s390 (Pali Rohár)
   - Implement driver 'remove' function and allow to build it as module
     (Pali Rohár)
   - Move PCIe reset card code to advk_pcie_train_link() (Pali Rohár)
   - Convert mvebu a3700 internal SMCC firmware return codes to errno
     (Pali Rohár)
   - Fix initialization with old Marvell's Arm Trusted Firmware (Pali
     Rohár)

  Microsoft Hyper-V host bridge driver:
   - Fix hibernation in case interrupts are not re-created (Dexuan Cui)

  NVIDIA Tegra PCIe controller driver:
   - Stop checking return value of debugfs_create() functions (Greg
     Kroah-Hartman)
   - Convert to use DEFINE_SEQ_ATTRIBUTE macro (Liu Shixin)

  Qualcomm PCIe controller driver:
   - Reset PCIe to work around Qsdk U-Boot issue (Ansuel Smith)

  Renesas R-Car PCIe controller driver:
   - Add DT documentation for r8a774a1, r8a774b1, r8a774e1 endpoints
     (Lad Prabhakar)
   - Add RZ/G2M, RZ/G2N, RZ/G2H IDs to endpoint test (Lad Prabhakar)
   - Add DT support for r8a7742 (Lad Prabhakar)

  Socionext UniPhier Pro5 controller driver:
   - Add DT descriptions of iATU register (host and endpoint) (Kunihiko
     Hayashi)

  Synopsys DesignWare PCIe controller driver:
   - Add link up check in dw_child_pcie_ops.map_bus() (racy, but seems
     unavoidable) (Hou Zhiqiang)
   - Fix endpoint Header Type check so multi-function devices work (Hou
     Zhiqiang)
   - Skip PCIE_MSI_INTR0* programming if MSI is disabled (Jisheng Zhang)
   - Stop leaking MSI page in suspend/resume (Jisheng Zhang)
   - Add common iATU register support instead of keystone-specific code
     (Kunihiko Hayashi)
   - Major config space access and other cleanups in dwc core and
     drivers that use it (al, exynos, histb, imx6, intel-gw, keystone,
     kirin, meson, qcom, tegra) (Rob Herring)
   - Add multiple PFs support for endpoint (Xiaowei Bao)
   - Add MSI-X doorbell mode in endpoint mode (Xiaowei Bao)

  Miscellaneous:
   - Use fallthrough pseudo-keyword (Gustavo A. R. Silva)
   - Fix "0 used as NULL pointer" warnings (Gustavo Pimentel)
   - Fix "cast truncates bits from constant value" warnings (Gustavo
     Pimentel)
   - Remove redundant zeroing for sg_init_table() (Julia Lawall)
   - Use scnprintf(), not snprintf(), in sysfs "show" functions
     (Krzysztof Wilczyński)
   - Remove unused assignments (Krzysztof Wilczyński)
   - Fix "0 used as NULL pointer" warning (Krzysztof Wilczyński)
   - Simplify bool comparisons (Krzysztof Wilczyński)
   - Use for_each_child_of_node() and for_each_node_by_name() (Qinglang
     Miao)
   - Simplify return expressions (Qinglang Miao)"

* tag 'pci-v5.10-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (147 commits)
  PCI: vmd: Update VMD PM to correctly use generic PCI PM
  PCI: vmd: Create IRQ allocation helper
  PCI: vmd: Create IRQ Domain configuration helper
  PCI: vmd: Create bus offset configuration helper
  PCI: vmd: Create physical offset helper
  PCI: v3-semi: Remove unneeded break
  PCI: dwc: Add link up check in dw_child_pcie_ops.map_bus()
  PCI/ASPM: Remove struct pcie_link_state.l1ss
  PCI/ASPM: Remove struct aspm_register_info.l1ss_cap
  PCI/ASPM: Pass L1SS Capabilities value, not struct aspm_register_info
  PCI/ASPM: Remove struct aspm_register_info.l1ss_ctl1
  PCI/ASPM: Remove struct aspm_register_info.l1ss_ctl2 (unused)
  PCI/ASPM: Remove struct aspm_register_info.l1ss_cap_ptr
  PCI/ASPM: Remove struct aspm_register_info.latency_encoding
  PCI/ASPM: Remove struct aspm_register_info.enabled
  PCI/ASPM: Remove struct aspm_register_info.support
  PCI/ASPM: Use 'parent' and 'child' for readability
  PCI/ASPM: Move LTR path check to where it's used
  PCI/ASPM: Move pci_clear_and_set_dword() earlier
  PCI: dwc: Fix MSI page leakage in suspend/resume
  ...
2020-10-22 12:41:00 -07:00
Linus Torvalds f56e65dff6 Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull initial set_fs() removal from Al Viro:
 "Christoph's set_fs base series + fixups"

* 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fs: Allow a NULL pos pointer to __kernel_read
  fs: Allow a NULL pos pointer to __kernel_write
  powerpc: remove address space overrides using set_fs()
  powerpc: use non-set_fs based maccess routines
  x86: remove address space overrides using set_fs()
  x86: make TASK_SIZE_MAX usable from assembly code
  x86: move PAGE_OFFSET, TASK_SIZE & friends to page_{32,64}_types.h
  lkdtm: remove set_fs-based tests
  test_bitmap: remove user bitmap tests
  uaccess: add infrastructure for kernel builds with set_fs()
  fs: don't allow splice read/write without explicit ops
  fs: don't allow kernel reads and writes without iter ops
  sysctl: Convert to iter interfaces
  proc: add a read_iter method to proc proc_ops
  proc: cleanup the compat vs no compat file ops
  proc: remove a level of indentation in proc_get_inode
2020-10-22 09:59:21 -07:00
Linus Torvalds b5df4b5c28 Merge branch 'i2c/for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:

 - if a host can be a client, too, the I2C core can now use it to
   emulate SMBus HostNotify support (STM32 and R-Car added this so far)

 - also for client mode, a testunit has been added. It can create rare
   situations on the bus, so host controllers can be tested

 - a binding has been added to mark the bus as "single-master". This
   allows for better timeout detections

 - new driver for Mellanox Bluefield

 - massive refactoring of the Tegra driver

 - EEPROMs recognized by the at24 driver can now have custom names

 - rest is driver updates

* 'i2c/for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (80 commits)
  Documentation: i2c: add testunit docs to index
  i2c: tegra: Improve driver module description
  i2c: tegra: Clean up whitespaces, newlines and indentation
  i2c: tegra: Clean up and improve comments
  i2c: tegra: Clean up printk messages
  i2c: tegra: Clean up variable names
  i2c: tegra: Improve formatting of variables
  i2c: tegra: Check errors for both positive and negative values
  i2c: tegra: Factor out hardware initialization into separate function
  i2c: tegra: Factor out register polling into separate function
  i2c: tegra: Factor out packet header setup from tegra_i2c_xfer_msg()
  i2c: tegra: Factor out error recovery from tegra_i2c_xfer_msg()
  i2c: tegra: Rename wait/poll functions
  i2c: tegra: Remove "dma" variable from tegra_i2c_xfer_msg()
  i2c: tegra: Remove redundant check in tegra_i2c_issue_bus_clear()
  i2c: tegra: Remove likely/unlikely from the code
  i2c: tegra: Remove outdated barrier()
  i2c: tegra: Clean up variable types
  i2c: tegra: Reorder location of functions in the code
  i2c: tegra: Clean up probe function
  ...
2020-10-21 10:54:05 -07:00
Bjorn Helgaas f95f023d11 Merge branch 'remotes/lorenzo/pci/rcar'
- Document R8A774A1, R8A774B1, R8A774E1 endpoint support in DT (Lad
  Prabhakar)

- Add R8A774A1, R8A774B1, R8A774E1 (RZ/G2M, RZ/G2N, RZ/G2H) IDs to endpoint
  test (Lad Prabhakar)

- Add device tree support for R8A7742 (Lad Prabhakar)

- Use "fallthrough" pseudo-keyword (Gustavo A. R. Silva)

* remotes/lorenzo/pci/rcar:
  dt-bindings: PCI: rcar: Add device tree support for r8a7742
  PCI: rcar-gen2: Use fallthrough pseudo-keyword
  misc: pci_endpoint_test: Add Device ID for RZ/G2H PCIe controller
  dt-bindings: pci: rcar-pci-ep: Document r8a774e1
  misc: pci_endpoint_test: Add Device ID for RZ/G2M and RZ/G2N PCIe controllers
  dt-bindings: pci: rcar-pci-ep: Document r8a774a1 and r8a774b1
2020-10-21 09:58:43 -05:00
Linus Torvalds 96685f8666 powerpc updates for 5.10
- A series from Nick adding ARCH_WANT_IRQS_OFF_ACTIVATE_MM & selecting it for
    powerpc, as well as a related fix for sparc.
 
  - Remove support for PowerPC 601.
 
  - Some fixes for watchpoints & addition of a new ptrace flag for detecting ISA
    v3.1 (Power10) watchpoint features.
 
  - A fix for kernels using 4K pages and the hash MMU on bare metal Power9
    systems with > 16TB of RAM, or RAM on the 2nd node.
 
  - A basic idle driver for shallow stop states on Power10.
 
  - Tweaks to our sched domains code to better inform the scheduler about the
    hardware topology on Power9/10, where two SMT4 cores can be presented by
    firmware as an SMT8 core.
 
  - A series doing further reworks & cleanups of our EEH code.
 
  - Addition of a filter for RTAS (firmware) calls done via sys_rtas(), to
    prevent root from overwriting kernel memory.
 
  - Other smaller features, fixes & cleanups.
 
 Thanks to:
   Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Athira Rajeev, Biwen
   Li, Cameron Berkenpas, Cédric Le Goater, Christophe Leroy, Christoph Hellwig,
   Colin Ian King, Daniel Axtens, David Dai, Finn Thain, Frederic Barrat, Gautham
   R. Shenoy, Greg Kurz, Gustavo Romero, Ira Weiny, Jason Yan, Joel Stanley,
   Jordan Niethe, Kajol Jain, Konrad Rzeszutek Wilk, Laurent Dufour, Leonardo
   Bras, Liu Shixin, Luca Ceresoli, Madhavan Srinivasan, Mahesh Salgaonkar,
   Nathan Lynch, Nicholas Mc Guire, Nicholas Piggin, Nick Desaulniers, Oliver
   O'Halloran, Pedro Miraglia Franco de Carvalho, Pratik Rajesh Sampat, Qian Cai,
   Qinglang Miao, Ravi Bangoria, Russell Currey, Satheesh Rajendran, Scott
   Cheloha, Segher Boessenkool, Srikar Dronamraju, Stan Johnson, Stephen Kitt,
   Stephen Rothwell, Thiago Jung Bauermann, Tyrel Datwyler, Vaibhav Jain,
   Vaidyanathan Srinivasan, Vasant Hegde, Wang Wensheng, Wolfram Sang, Yang
   Yingliang, zhengbin.
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Merge tag 'powerpc-5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - A series from Nick adding ARCH_WANT_IRQS_OFF_ACTIVATE_MM & selecting
   it for powerpc, as well as a related fix for sparc.

 - Remove support for PowerPC 601.

 - Some fixes for watchpoints & addition of a new ptrace flag for
   detecting ISA v3.1 (Power10) watchpoint features.

 - A fix for kernels using 4K pages and the hash MMU on bare metal
   Power9 systems with > 16TB of RAM, or RAM on the 2nd node.

 - A basic idle driver for shallow stop states on Power10.

 - Tweaks to our sched domains code to better inform the scheduler about
   the hardware topology on Power9/10, where two SMT4 cores can be
   presented by firmware as an SMT8 core.

 - A series doing further reworks & cleanups of our EEH code.

 - Addition of a filter for RTAS (firmware) calls done via sys_rtas(),
   to prevent root from overwriting kernel memory.

 - Other smaller features, fixes & cleanups.

Thanks to: Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V,
Athira Rajeev, Biwen Li, Cameron Berkenpas, Cédric Le Goater, Christophe
Leroy, Christoph Hellwig, Colin Ian King, Daniel Axtens, David Dai, Finn
Thain, Frederic Barrat, Gautham R. Shenoy, Greg Kurz, Gustavo Romero,
Ira Weiny, Jason Yan, Joel Stanley, Jordan Niethe, Kajol Jain, Konrad
Rzeszutek Wilk, Laurent Dufour, Leonardo Bras, Liu Shixin, Luca
Ceresoli, Madhavan Srinivasan, Mahesh Salgaonkar, Nathan Lynch, Nicholas
Mc Guire, Nicholas Piggin, Nick Desaulniers, Oliver O'Halloran, Pedro
Miraglia Franco de Carvalho, Pratik Rajesh Sampat, Qian Cai, Qinglang
Miao, Ravi Bangoria, Russell Currey, Satheesh Rajendran, Scott Cheloha,
Segher Boessenkool, Srikar Dronamraju, Stan Johnson, Stephen Kitt,
Stephen Rothwell, Thiago Jung Bauermann, Tyrel Datwyler, Vaibhav Jain,
Vaidyanathan Srinivasan, Vasant Hegde, Wang Wensheng, Wolfram Sang, Yang
Yingliang, zhengbin.

* tag 'powerpc-5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (228 commits)
  Revert "powerpc/pci: unmap legacy INTx interrupts when a PHB is removed"
  selftests/powerpc: Fix eeh-basic.sh exit codes
  cpufreq: powernv: Fix frame-size-overflow in powernv_cpufreq_reboot_notifier
  powerpc/time: Make get_tb() common to PPC32 and PPC64
  powerpc/time: Make get_tbl() common to PPC32 and PPC64
  powerpc/time: Remove get_tbu()
  powerpc/time: Avoid using get_tbl() and get_tbu() internally
  powerpc/time: Make mftb() common to PPC32 and PPC64
  powerpc/time: Rename mftbl() to mftb()
  powerpc/32s: Remove #ifdef CONFIG_PPC_BOOK3S_32 in head_book3s_32.S
  powerpc/32s: Rename head_32.S to head_book3s_32.S
  powerpc/32s: Setup the early hash table at all time.
  powerpc/time: Remove ifdef in get_dec() and set_dec()
  powerpc: Remove get_tb_or_rtc()
  powerpc: Remove __USE_RTC()
  powerpc: Tidy up a bit after removal of PowerPC 601.
  powerpc: Remove support for PowerPC 601
  powerpc: Remove PowerPC 601
  powerpc: Drop SYNC_601() ISYNC_601() and SYNC()
  powerpc: Remove CONFIG_PPC601_SYNC_FIX
  ...
2020-10-16 12:21:15 -07:00
Linus Torvalds 5a32c3413d dma-mapping updates for 5.10
- rework the non-coherent DMA allocator
  - move private definitions out of <linux/dma-mapping.h>
  - lower CMA_ALIGNMENT (Paul Cercueil)
  - remove the omap1 dma address translation in favor of the common
    code
  - make dma-direct aware of multiple dma offset ranges (Jim Quinlan)
  - support per-node DMA CMA areas (Barry Song)
  - increase the default seg boundary limit (Nicolin Chen)
  - misc fixes (Robin Murphy, Thomas Tai, Xu Wang)
  - various cleanups
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Merge tag 'dma-mapping-5.10' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping updates from Christoph Hellwig:

 - rework the non-coherent DMA allocator

 - move private definitions out of <linux/dma-mapping.h>

 - lower CMA_ALIGNMENT (Paul Cercueil)

 - remove the omap1 dma address translation in favor of the common code

 - make dma-direct aware of multiple dma offset ranges (Jim Quinlan)

 - support per-node DMA CMA areas (Barry Song)

 - increase the default seg boundary limit (Nicolin Chen)

 - misc fixes (Robin Murphy, Thomas Tai, Xu Wang)

 - various cleanups

* tag 'dma-mapping-5.10' of git://git.infradead.org/users/hch/dma-mapping: (63 commits)
  ARM/ixp4xx: add a missing include of dma-map-ops.h
  dma-direct: simplify the DMA_ATTR_NO_KERNEL_MAPPING handling
  dma-direct: factor out a dma_direct_alloc_from_pool helper
  dma-direct check for highmem pages in dma_direct_alloc_pages
  dma-mapping: merge <linux/dma-noncoherent.h> into <linux/dma-map-ops.h>
  dma-mapping: move large parts of <linux/dma-direct.h> to kernel/dma
  dma-mapping: move dma-debug.h to kernel/dma/
  dma-mapping: remove <asm/dma-contiguous.h>
  dma-mapping: merge <linux/dma-contiguous.h> into <linux/dma-map-ops.h>
  dma-contiguous: remove dma_contiguous_set_default
  dma-contiguous: remove dev_set_cma_area
  dma-contiguous: remove dma_declare_contiguous
  dma-mapping: split <linux/dma-mapping.h>
  cma: decrease CMA_ALIGNMENT lower limit to 2
  firewire-ohci: use dma_alloc_pages
  dma-iommu: implement ->alloc_noncoherent
  dma-mapping: add new {alloc,free}_noncoherent dma_map_ops methods
  dma-mapping: add a new dma_alloc_pages API
  dma-mapping: remove dma_cache_sync
  53c700: convert to dma_alloc_noncoherent
  ...
2020-10-15 14:43:29 -07:00
Linus Torvalds 726eb70e0d Char/Misc driver patches for 5.10-rc1
Here is the big set of char, misc, and other assorted driver subsystem
 patches for 5.10-rc1.
 
 There's a lot of different things in here, all over the drivers/
 directory.  Some summaries:
 	- soundwire driver updates
 	- habanalabs driver updates
 	- extcon driver updates
 	- nitro_enclaves new driver
 	- fsl-mc driver and core updates
 	- mhi core and bus updates
 	- nvmem driver updates
 	- eeprom driver updates
 	- binder driver updates and fixes
 	- vbox minor bugfixes
 	- fsi driver updates
 	- w1 driver updates
 	- coresight driver updates
 	- interconnect driver updates
 	- misc driver updates
 	- other minor driver updates
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big set of char, misc, and other assorted driver subsystem
  patches for 5.10-rc1.

  There's a lot of different things in here, all over the drivers/
  directory. Some summaries:

   - soundwire driver updates

   - habanalabs driver updates

   - extcon driver updates

   - nitro_enclaves new driver

   - fsl-mc driver and core updates

   - mhi core and bus updates

   - nvmem driver updates

   - eeprom driver updates

   - binder driver updates and fixes

   - vbox minor bugfixes

   - fsi driver updates

   - w1 driver updates

   - coresight driver updates

   - interconnect driver updates

   - misc driver updates

   - other minor driver updates

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (396 commits)
  binder: fix UAF when releasing todo list
  docs: w1: w1_therm: Fix broken xref, mistakes, clarify text
  misc: Kconfig: fix a HISI_HIKEY_USB dependency
  LSM: Fix type of id parameter in kernel_post_load_data prototype
  misc: Kconfig: add a new dependency for HISI_HIKEY_USB
  firmware_loader: fix a kernel-doc markup
  w1: w1_therm: make w1_poll_completion static
  binder: simplify the return expression of binder_mmap
  test_firmware: Test partial read support
  firmware: Add request_partial_firmware_into_buf()
  firmware: Store opt_flags in fw_priv
  fs/kernel_file_read: Add "offset" arg for partial reads
  IMA: Add support for file reads without contents
  LSM: Add "contents" flag to kernel_read_file hook
  module: Call security_kernel_post_load_data()
  firmware_loader: Use security_post_load_data()
  LSM: Introduce kernel_post_load_data() hook
  fs/kernel_read_file: Add file_size output argument
  fs/kernel_read_file: Switch buffer size arg to size_t
  fs/kernel_read_file: Remove redundant size argument
  ...
2020-10-15 10:01:51 -07:00
Linus Torvalds 612e7a4c16 kernel-clone-v5.9
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Merge tag 'kernel-clone-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

Pull kernel_clone() updates from Christian Brauner:
 "During the v5.9 merge window we reworked the process creation
  codepaths across multiple architectures. After this work we were only
  left with the _do_fork() helper based on the struct kernel_clone_args
  calling convention. As was pointed out _do_fork() isn't valid
  kernelese especially for a helper that isn't just static.

  This series removes the _do_fork() helper and introduces the new
  kernel_clone() helper. The process creation cleanup didn't change the
  name to something more reasonable mainly because _do_fork() was used
  in quite a few places. So sending this as a separate series seemed the
  better strategy.

  I originally intended to send this early in the v5.9 development cycle
  after the merge window had closed but given that this was touching
  quite a few places I decided to defer this until the v5.10 merge
  window"

* tag 'kernel-clone-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
  sched: remove _do_fork()
  tracing: switch to kernel_clone()
  kgdbts: switch to kernel_clone()
  kprobes: switch to kernel_clone()
  x86: switch to kernel_clone()
  sparc: switch to kernel_clone()
  nios2: switch to kernel_clone()
  m68k: switch to kernel_clone()
  ia64: switch to kernel_clone()
  h8300: switch to kernel_clone()
  fork: introduce kernel_clone()
2020-10-14 14:32:52 -07:00
Linus Torvalds ac74075e5d Initial support for sharing virtual addresses between the CPU and
devices which doesn't need pinning of pages for DMA anymore. Add support
 for the command submission to devices using new x86 instructions like
 ENQCMD{,S} and MOVDIR64B. In addition, add support for process address
 space identifiers (PASIDs) which are referenced by those command
 submission instructions along with the handling of the PASID state on
 context switch as another extended state. Work by Fenghua Yu, Ashok Raj,
 Yu-cheng Yu and Dave Jiang.
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Merge tag 'x86_pasid_for_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 PASID updates from Borislav Petkov:
 "Initial support for sharing virtual addresses between the CPU and
  devices which doesn't need pinning of pages for DMA anymore.

  Add support for the command submission to devices using new x86
  instructions like ENQCMD{,S} and MOVDIR64B. In addition, add support
  for process address space identifiers (PASIDs) which are referenced by
  those command submission instructions along with the handling of the
  PASID state on context switch as another extended state.

  Work by Fenghua Yu, Ashok Raj, Yu-cheng Yu and Dave Jiang"

* tag 'x86_pasid_for_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/asm: Add an enqcmds() wrapper for the ENQCMDS instruction
  x86/asm: Carve out a generic movdir64b() helper for general usage
  x86/mmu: Allocate/free a PASID
  x86/cpufeatures: Mark ENQCMD as disabled when configured out
  mm: Add a pasid member to struct mm_struct
  x86/msr-index: Define an IA32_PASID MSR
  x86/fpu/xstate: Add supervisor PASID state for ENQCMD
  x86/cpufeatures: Enumerate ENQCMD and ENQCMDS instructions
  Documentation/x86: Add documentation for SVA (Shared Virtual Addressing)
  iommu/vt-d: Change flags type to unsigned int in binding mm
  drm, iommu: Change type of pasid to u32
2020-10-12 10:40:34 -07:00
Mauro Carvalho Chehab 51fbad388c misc: Kconfig: fix a HISI_HIKEY_USB dependency
The dependency should be just USB_ROLE_SWITCH, instead
of CONFIG_USB_ROLE_SWITCH.

Fixes: 2827d98bc5 ("misc: Kconfig: add a new dependency for HISI_HIKEY_USB")
Reported-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/0b6dff854c4bb412c2c11f17803e84d61385415f.1602138248.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-08 09:21:33 +02:00
Mauro Carvalho Chehab 2827d98bc5 misc: Kconfig: add a new dependency for HISI_HIKEY_USB
As warned by Randy:

	on x86_64:
	CONFIG_USB_ROLE_SWITCH=m
	and HISI_HIKEY_USB=y.

	ld: drivers/misc/hisi_hikey_usb.o: in function `hisi_hikey_usb_remove':
	hisi_hikey_usb.c:(.text+0x61): undefined reference to `usb_role_switch_unregister'
	ld: hisi_hikey_usb.c:(.text+0xa4): undefined reference to `usb_role_switch_put'
	ld: drivers/misc/hisi_hikey_usb.o: in function `hub_usb_role_switch_set':
	hisi_hikey_usb.c:(.text+0xd3): undefined reference to `usb_role_switch_get_drvdata'
	ld: drivers/misc/hisi_hikey_usb.o: in function `relay_set_role_switch':
	hisi_hikey_usb.c:(.text+0x54d): undefined reference to `usb_role_switch_set_role'
	ld: drivers/misc/hisi_hikey_usb.o: in function `hisi_hikey_usb_probe':
	hisi_hikey_usb.c:(.text+0x8a5): undefined reference to `usb_role_switch_get'
	ld: hisi_hikey_usb.c:(.text+0xa08): undefined reference to `usb_role_switch_register'
	ld: hisi_hikey_usb.c:(.text+0xa6e): undefined reference to `usb_role_switch_put'

Make it dependent on CONFIG_USB_ROLE_SWITCH.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/0e49432d0db9ee8429a9923a1d995935b6b83552.1602047370.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-07 09:23:20 +02:00
Mike Travis 7a6d94f0ed x86/platform/uv: Update Copyrights to conform to HPE standards
Add Copyrights to those files that have been updated for UV5 changes.

Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20201005203929.148656-14-mike.travis@hpe.com
2020-10-07 09:10:07 +02:00
Mike Travis 647128f153 x86/platform/uv: Update UV MMRs for UV5
Update UV MMRs in uv_mmrs.h for UV5 based on Verilog output from the
UV Hub hardware design files.  This is the next UV architecture with
a new class (UVY) being defined for 52 bit physical address masks.
Uses a bitmask for UV arch identification so a single test can cover
multiple versions.  Includes other adjustments to match the uv_mmrs.h
file to keep from encountering compile errors.  New UV5 functionality
is added in the patches that follow.

[ Fix W=1 build warnings. ]
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Link: https://lkml.kernel.org/r/20201005203929.148656-5-mike.travis@hpe.com
2020-10-07 09:00:57 +02:00
Mike Travis 788b66e34e drivers/misc/sgi-xp: Adjust references in UV kernel modules
Remove the define is_uv() is_uv_system and just use the latter as is.
This removes a conflict with a new symbol in the generated uv_mmrs.h
file (is_uv()).

Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Link: https://lkml.kernel.org/r/20201005203929.148656-4-mike.travis@hpe.com
2020-10-07 08:56:05 +02:00
Christoph Hellwig 0a0f0d8be7 dma-mapping: split <linux/dma-mapping.h>
Split out all the bits that are purely for dma_map_ops implementations
and related code into a new <linux/dma-map-ops.h> header so that they
don't get pulled into all the drivers.  That also means the architecture
specific <asm/dma-mapping.h> is not pulled in by <linux/dma-mapping.h>
any more, which leads to a missing includes that were pulled in by the
x86 or arm versions in a few not overly portable drivers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-10-06 07:07:03 +02:00
Sherry Sun 675f0ad404 mic: vop: copy data to kernel space then write to io memory
Read and write io memory should address align on ARCH ARM. Change to use
memcpy_toio to avoid kernel panic caused by the address un-align issue.

Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Link: https://lore.kernel.org/r/20200929091106.24624-5-sherry.sun@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02 15:57:29 +02:00
Sherry Sun cc1a267986 misc: vop: add round_up(x,4) for vring_size to avoid kernel panic
Since struct _mic_vring_info and vring are allocated together and follow
vring, if the vring_size() is not four bytes aligned, which will cause
the start address of struct _mic_vring_info is not four byte aligned.
For example, when vring entries is 128, the vring_size() will be 5126
bytes. The _mic_vring_info struct layout in ddr looks like:
0x90002400:  00000000 00390000 EE010000 0000C0FF
Here 0x39 is the avail_idx member, and 0xC0FFEE01 is the magic member.

When EP use ioread32(magic) to reads the magic in RC's share memory, it
will cause kernel panic on ARM64 platform due to the cross-byte io read.
Here read magic in user space use le32toh(vr0->info->magic) will meet
the same issue.
So add round_up(x,4) for vring_size, then the struct _mic_vring_info
will store in this way:
0x90002400:  00000000 00000000 00000039 C0FFEE01
Which will avoid kernel panic when read magic in struct _mic_vring_info.

Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Link: https://lore.kernel.org/r/20200929091106.24624-4-sherry.sun@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02 15:57:29 +02:00
Sherry Sun 8c56adc511 misc: vop: build VOP based on CONFIG_VOP
Build module or builtin VOP based on CONFIG_VOP macro.

Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Link: https://lore.kernel.org/r/20200929091106.24624-3-sherry.sun@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02 15:57:29 +02:00
Sherry Sun e84d3896fb misc: vop: set VIRTIO_F_ACCESS_PLATFORM for vop driver
Set VIRTIO_F_ACCESS_PLATFORM feature for vop driver, as the DMA mapping
details shouldn't decide on the virtio implementation, but the host PCIe
implementation.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Link: https://lore.kernel.org/r/20200929084944.24146-1-sherry.sun@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02 15:51:05 +02:00
Liu Shixin 4292aa977f eeprom: ee1004: use module_i2c_driver to simplify the code
Use the module_i2c_driver() macro to make the code smaller
and a bit simpler.

Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Link: https://lore.kernel.org/r/20200918030225.3902750-1-liushixin2@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02 11:36:37 +02:00
Qinglang Miao 961d289b61 ocxl: simplify the return expression of free_function_dev()
Simplify the return expression.

Acked-by: Frederic Barrat <fbarrat@linux.ibm.com>
Acked-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Link: https://lore.kernel.org/r/20200921131047.92526-1-miaoqinglang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02 11:35:46 +02:00
Necip Fazil Yildiran 4b53a3c721 ocxl: fix kconfig dependency warning for OCXL
When OCXL is enabled and HOTPLUG_PCI is disabled, it results in the
following Kbuild warning:

WARNING: unmet direct dependencies detected for HOTPLUG_PCI_POWERNV
  Depends on [n]: PCI [=y] && HOTPLUG_PCI [=n] && PPC_POWERNV [=y] && EEH [=y]
  Selected by [y]:
  - OCXL [=y] && PPC_POWERNV [=y] && PCI [=y] && EEH [=y]

The reason is that OCXL selects HOTPLUG_PCI_POWERNV without depending on
or selecting HOTPLUG_PCI while HOTPLUG_PCI_POWERNV is subordinate to
HOTPLUG_PCI.

HOTPLUG_PCI_POWERNV is a visible symbol with a set of dependencies.
Selecting it will lead to overlooking its other dependencies as well.

Let OCXL depend on HOTPLUG_PCI_POWERNV instead to avoid Kbuild issues.

Fixes: 49ce94b867 ("ocxl: Add PCI hotplug dependency to Kconfig")
Acked-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Necip Fazil Yildiran <fazilyildiran@gmail.com>
Link: https://lore.kernel.org/r/20200918094148.20525-1-fazilyildiran@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02 11:35:38 +02:00
Julia Lawall 4533765675 misc: mic: drop double zeroing
sg_init_table zeroes its first argument, so the allocation of that argument
doesn't have to.

the semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x,n,flags;
@@

x =
- kcalloc
+ kmalloc_array
  (n,sizeof(struct scatterlist),flags)
...
sg_init_table(x,n)
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Link: https://lore.kernel.org/r/1600601186-7420-14-git-send-email-Julia.Lawall@inria.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-30 13:53:16 +02:00
Oded Gabbay 5b94d6e476 habanalabs/gaudi: use correct define for qman init
There was a copy-paste error, and the wrong define was used for
initializing the QMAN.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Link: https://lore.kernel.org/r/20200925171415.25663-1-oded.gabbay@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-30 08:38:18 +02:00
Thomas Zimmermann 6619ccf1bb dma-buf: Use struct dma_buf_map in dma_buf_vmap() interfaces
This patch updates dma_buf_vmap() and dma-buf's vmap callback to use
struct dma_buf_map.

The interfaces used to return a buffer address. This address now gets
stored in an instance of the structure that is given as an additional
argument. The functions return an errno code on errors.

Users of the functions are updated accordingly. This is only an interface
change. It is currently expected that dma-buf memory can be accessed with
system memory load/store operations.

v3:
	* update fastrpc driver (kernel test robot)
v2:
	* always clear map parameter in dma_buf_vmap() (Daniel)
	* include dma-buf-heaps and i915 selftests (kernel test robot)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200925115601.23955-3-tzimmermann@suse.de
2020-09-29 12:40:58 +02:00
Wolfram Sang 668ba5e690 at24 updates for v5.10
- add support for masking sensitive data in VAIO EEPROMs
 - set the nvmem TYPE to NVMEM_TYPE_EEPROM
 - add support for the new 'label' property
 - set the nvmem ID to NVMEM_DEVID_AUTO by default (for backward
   compatibility) or to NVMEM_DEVID_NONE if label is defined
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Merge tag 'at24-updates-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-5.10

at24 updates for v5.10

- add support for masking sensitive data in VAIO EEPROMs
- set the nvmem TYPE to NVMEM_TYPE_EEPROM
- add support for the new 'label' property
- set the nvmem ID to NVMEM_DEVID_AUTO by default (for backward
  compatibility) or to NVMEM_DEVID_NONE if label is defined
2020-09-27 15:16:24 +02:00
Jon Hunter 61f764c307 eeprom: at24: Support custom device names for AT24 EEPROMs
By using the label property, a more descriptive name can be populated
for AT24 EEPROMs NVMEM device. Update the AT24 driver to check to see
if the label property is present and if so, use this as the name for
NVMEM device. Please note that when the 'label' property is present for
the AT24 EEPROM, we do not want the NVMEM driver to append the 'devid'
to the name and so the nvmem_config.id is initialised to
NVMEM_DEVID_NONE.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-09-25 15:33:04 +02:00
Ofir Bitton 25121d9804 habanalabs/gaudi: configure QMAN LDMA registers properly
LDMA registers are configured with a fixed value.
We add new define set which gives the configuration
a proper meaning.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-25 14:44:21 +03:00
Oded Gabbay eab1f6e7b0 habanalabs: add notice of device not idle
The device should be idle after a context is closed. If not, print a
notice.

Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-25 14:44:21 +03:00
Oded Gabbay 3c3aa5dbd6 habanalabs: add debug messages for opening/closing context
During debugging of error we sometimes need to know whether the error
happened when a user context was open. Add debug prints when opening and
closing user contexts.

Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-25 14:44:20 +03:00
Oded Gabbay 9e2e8fc7d6 habanalabs: release kernel context after hw_fini
Some engines use resources that belong to the kernel context (e.g. MMU
mappings). In case the halt-engines doesn't work properly due to H/W
restriction, we need to make sure the kernel context lives on until after
the hw_fini. The hw_fini resets the ASIC after that no engine is alive and
we can safely close the kernel context.

Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-25 14:44:20 +03:00
Oded Gabbay fc6121e961 habanalabs: correct an error message
We don't try to allocate huge pages here so remove the huge word.

Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-25 14:44:20 +03:00
Christoph Hellwig 8c1c6c7588 Merge branch 'master' of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into dma-mapping-for-next
Pull in the latest 5.9 tree for the commit to revert the
V4L2_FLAG_MEMORY_NON_CONSISTENT uapi addition.
2020-09-25 06:19:19 +02:00
Jon Hunter f434f9b7af eeprom: at24: Initialise AT24 NVMEM ID field
The AT24 EEPROM driver does not initialise the 'id' field of the
nvmem_config structure and because the entire structure is not
initialised, it ends up with a random value. This causes the NVMEM
driver to append the device 'devid' value to name of the NVMEM
device. Ideally for I2C devices such as the AT24 that already have a
unique name, we would not bother to append the 'devid'. However, given
that this has always been done for AT24 devices, we cannot remove the
'devid' as this will change the name of the userspace sysfs node for
the NVMEM device. Nonetheless we should ensure that the 'id' field of
the nvmem_config structure is initialised so that there is no chance of
a random value causes problems in the future. Therefore, set the NVMEM
config.id to NVMEM_DEVID_AUTO for AT24 EEPROMs so that the 'devid' is
always appended.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-09-24 15:18:46 +02:00
Hou Zhiqiang 09fb37b35e misc: pci_endpoint_test: Add driver data for Layerscape PCIe controllers
The commit 0a121f9bc3 ("misc: pci_endpoint_test: Use streaming DMA
APIs for buffer allocation") changed to use streaming DMA APIs, however,
dma_map_single() might not return a 4KB aligned address, so add the
default_data as driver data for Layerscape PCIe controllers to make it
4KB aligned.

Link: https://lore.kernel.org/r/20200918080024.13639-13-Zhiqiang.Hou@nxp.com
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
2020-09-24 13:53:07 +01:00
Xiaowei Bao 6b8ab42137 misc: pci_endpoint_test: Add LS1088a in pci_device_id table
Add LS1088a in pci_device_id table so that pci-epf-test can be used
for testing PCIe EP in LS1088a.

Link: https://lore.kernel.org/r/20200918080024.13639-12-Zhiqiang.Hou@nxp.com
Signed-off-by: Xiaowei Bao <xiaowei.bao@nxp.com>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
2020-09-24 13:53:07 +01:00
Dan Carpenter 26ed5146bd misc: hisi_hikey_usb: delete a stray tab
This return statement is indented one tab too far.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200918143405.GF909725@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-22 18:54:00 +02:00
Souptick Joarder a81072a9c0 misc: mic: scif: Fix error handling path
Inside __scif_pin_pages(), when map_flags != SCIF_MAP_KERNEL it
will call pin_user_pages_fast() to map nr_pages. However,
pin_user_pages_fast() might fail with a return value -ERRNO.

The return value is stored in pinned_pages->nr_pages. which in
turn is passed to unpin_user_pages(), which expects
pinned_pages->nr_pages >=0, else disaster.

Fix this by assigning pinned_pages->nr_pages to 0 if
pin_user_pages_fast() returns -ERRNO.

Fixes: ba612aa8b4 ("misc: mic: SCIF memory registration and unregistration")
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Link: https://lore.kernel.org/r/1600570295-29546-1-git-send-email-jrdr.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-22 18:53:47 +02:00
Wang ShaoBo a2e7408cf8 misc: pvpanic: Use devm_platform_ioremap_resource()
Make use of devm_platform_ioremap_resource() provided by driver
core platform instead of duplicated analogue.

Acked-by: Arnd Bergmann <arn@arndb.de>
Signed-off-by: Wang ShaoBo <bobo.shaobowang@huawei.com>
Link: https://lore.kernel.org/r/20200918083634.33124-1-bobo.shaobowang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-22 18:53:30 +02:00
Oded Gabbay f279e5cd95 habanalabs: update scratchpad register map
Our firmware use some scratchpad registers in the device for different
roles. Update the file to the latest version of the firmware code.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22 18:49:54 +03:00
Oded Gabbay 57799ce9f8 habanalabs: add indication of security-enabled F/W
Future F/W versions will have enhanced security measures and the driver
won't be able to do certain configurations that it always did and those
configurations will be done by the firmware.

We use the firmware's preboot version to determine whether security
measures are enabled or not. Because we need this very early in our code,
the read of the preboot version is moved to the earliest possible place,
right after the device's PCI initialization.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22 18:49:54 +03:00
Oded Gabbay d1f3633599 habanalabs/gaudi: fix DMA completions max outstanding to 15
This is a workaround for H/W bug H3-2116, where if there are more than 16
outstanding completions in the DMA transpose engine, there can be a
deadlock in the engine.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22 18:49:54 +03:00
Oded Gabbay dbf053c429 habanalabs/gaudi: remove axi drain support
AXI drain is broken in GAUDI so remove support for enabling it.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22 18:49:54 +03:00
Oded Gabbay 219b8f2ff0 habanalabs: update firmware interface file
Add new packet to fetch PLL information from firmware. This will be needed
in the future when the driver won't be able to access the PLL registers
directly

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22 18:49:54 +03:00
Tomer Tayar ef6a0f6caa habanalabs: Add an option to map CB to device MMU
There are cases in which the device should access the host memory of a
CB through the device MMU, and thus this memory should be mapped.
The patch adds a flag to the CB IOCTL, in which a user can ask the
driver to perform the mapping when creating a CB.
The mapping is allowed only if a dedicated VA range was allocated for
the specific ASIC.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22 18:49:54 +03:00
Tomer Tayar fa8641a14f habanalabs: Save context in a command buffer object
Future changes require using a context while handling a command buffer,
and thus need to save the context in the command buffer object.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22 18:49:54 +03:00