linux-toradex.git/drivers/misc/uacce, branch v5.11-rc6 Linux kernel for Apalis and Colibri modules uacce: modify the module author information. 2020-11-09T17:41:03+00:00 Kai Ye yekai13@huawei.com 2020-11-02T09:39:25+00:00 385997dc17ab4927bad332c1283dc461a973ab1d The spelling of "Hisilicon" is modified. Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@Huawei.com> Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Kai Ye <yekai13@huawei.com> Link: https://lore.kernel.org/r/1604309965-21752-3-git-send-email-yekai13@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
The spelling of "Hisilicon" is modified.

Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Kai Ye <yekai13@huawei.com>
Link: https://lore.kernel.org/r/1604309965-21752-3-git-send-email-yekai13@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
uacce: delete some redundant code. 2020-11-09T17:41:03+00:00 Kai Ye yekai13@huawei.com 2020-11-02T09:39:24+00:00 a67c43ac37f80b5e7e1876e8f5f7df62027445c8 Delete some redundant code. Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@Huawei.com> Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Kai Ye <yekai13@huawei.com> Link: https://lore.kernel.org/r/1604309965-21752-2-git-send-email-yekai13@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Delete some redundant code.

Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Kai Ye <yekai13@huawei.com>
Link: https://lore.kernel.org/r/1604309965-21752-2-git-send-email-yekai13@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge tag 'char-misc-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc 2020-10-15T17:01:51+00:00 Linus Torvalds torvalds@linux-foundation.org 2020-10-15T17:01:51+00:00 726eb70e0d34dc4bc4dada71f52bba8ed638431e 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 ... 
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
  ...
drm, iommu: Change type of pasid to u32 2020-09-17T17:21:16+00:00 Fenghua Yu fenghua.yu@intel.com 2020-09-15T16:30:05+00:00 c7b6bac9c72c5fcbd6e9e12545bd3022c7f21860 PASID is defined as a few different types in iommu including "int", "u32", and "unsigned int". To be consistent and to match with uapi definitions, define PASID and its variations (e.g. max PASID) as "u32". "u32" is also shorter and a little more explicit than "unsigned int". No PASID type change in uapi although it defines PASID as __u64 in some places. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Tony Luck <tony.luck@intel.com> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Acked-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Joerg Roedel <jroedel@suse.de> Link: https://lkml.kernel.org/r/1600187413-163670-2-git-send-email-fenghua.yu@intel.com 
PASID is defined as a few different types in iommu including "int",
"u32", and "unsigned int". To be consistent and to match with uapi
definitions, define PASID and its variations (e.g. max PASID) as "u32".
"u32" is also shorter and a little more explicit than "unsigned int".

No PASID type change in uapi although it defines PASID as __u64 in
some places.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Joerg Roedel <jroedel@suse.de>
Link: https://lkml.kernel.org/r/1600187413-163670-2-git-send-email-fenghua.yu@intel.com
uacce: Use kobj_to_dev() instead of container_of() 2020-09-07T12:30:35+00:00 Tian Tao tiantao6@hisilicon.com 2020-08-20T02:16:32+00:00 a4c3d756530606a3041928f702635df281ff3e75 Use kobj_to_dev() instead of container_of() Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com> Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org> Link: https://lore.kernel.org/r/1597889792-53139-1-git-send-email-tiantao6@hisilicon.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Use kobj_to_dev() instead of container_of()

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Link: https://lore.kernel.org/r/1597889792-53139-1-git-send-email-tiantao6@hisilicon.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-08-08T04:14:30+00:00 Linus Torvalds torvalds@linux-foundation.org 2020-08-08T04:14:30+00:00 b79675e15a754ca51b9fc631e0961ccdd4ec3fc7 Pull misc vfs updates from Al Viro: "No common topic whatsoever in those, sorry" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs: define inode flags using bit numbers iov_iter: Move unnecessary inclusion of crypto/hash.h dlmfs: clean up dlmfs_file_{read,write}() a bit 
Pull misc vfs updates from Al Viro:
 "No common topic whatsoever in those, sorry"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fs: define inode flags using bit numbers
  iov_iter: Move unnecessary inclusion of crypto/hash.h
  dlmfs: clean up dlmfs_file_{read,write}() a bit
uacce: remove uacce_vma_fault 2020-07-10T12:50:51+00:00 Zhangfei Gao zhangfei.gao@linaro.org 2020-06-15T13:55:57+00:00 51d501e540e6edd6737c0f1383b7789232595c13 Fix NULL pointer error if removing uacce's parent module during app's running. SIGBUS is already reported by do_page_fault, so uacce_vma_fault is not needed. If providing vma_fault, vmf->page has to be filled as well, required by __do_fault. Reported-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Link: https://lore.kernel.org/r/1592229357-1904-1-git-send-email-zhangfei.gao@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Fix NULL pointer error if removing uacce's parent module during app's
running. SIGBUS is already reported by do_page_fault, so uacce_vma_fault
is not needed. If providing vma_fault, vmf->page has to be filled as well,
required by __do_fault.

Reported-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Link: https://lore.kernel.org/r/1592229357-1904-1-git-send-email-zhangfei.gao@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
iov_iter: Move unnecessary inclusion of crypto/hash.h 2020-06-30T13:34:23+00:00 Herbert Xu herbert@gondor.apana.org.au 2020-06-12T06:57:37+00:00 7999096fa9cfd0253497c8d2ed9a5a1537521d25 The header file linux/uio.h includes crypto/hash.h which pulls in most of the Crypto API. Since linux/uio.h is used throughout the kernel this means that every tiny bit of change to the Crypto API causes the entire kernel to get rebuilt. This patch fixes this by moving it into lib/iov_iter.c instead where it is actually used. This patch also fixes the ifdef to use CRYPTO_HASH instead of just CRYPTO which does not guarantee the existence of ahash. Unfortunately a number of drivers were relying on linux/uio.h to provide access to linux/slab.h. This patch adds inclusions of linux/slab.h as detected by build failures. Also skbuff.h was relying on this to provide a declaration for ahash_request. This patch adds a forward declaration instead. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
The header file linux/uio.h includes crypto/hash.h which pulls in
most of the Crypto API.  Since linux/uio.h is used throughout the
kernel this means that every tiny bit of change to the Crypto API
causes the entire kernel to get rebuilt.

This patch fixes this by moving it into lib/iov_iter.c instead
where it is actually used.

This patch also fixes the ifdef to use CRYPTO_HASH instead of just
CRYPTO which does not guarantee the existence of ahash.

Unfortunately a number of drivers were relying on linux/uio.h to
provide access to linux/slab.h.  This patch adds inclusions of
linux/slab.h as detected by build failures.

Also skbuff.h was relying on this to provide a declaration for
ahash_request.  This patch adds a forward declaration instead.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
uacce: Remove mm_exit() op 2020-05-29T12:52:53+00:00 Jean-Philippe Brucker jean-philippe@linaro.org 2020-04-23T12:53:28+00:00 fb01562e5a8a731bb1807eba0a9fadb355ca2277 The mm_exit() op will be removed from the SVA API. When a process dies and its mm goes away, the IOMMU driver won't notify device drivers anymore. Drivers should expect to handle a lot more aborted DMA. On the upside, it does greatly simplify the queue management. The uacce_mm struct, that tracks all queues bound to an mm, was only used by the mm_exit() callback. Remove it. Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Acked-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Acked-by: Lu Baolu <baolu.lu@linux.intel.com> Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org> Link: https://lore.kernel.org/r/20200423125329.782066-2-jean-philippe@linaro.org Signed-off-by: Joerg Roedel <jroedel@suse.de> 
The mm_exit() op will be removed from the SVA API. When a process dies
and its mm goes away, the IOMMU driver won't notify device drivers
anymore. Drivers should expect to handle a lot more aborted DMA. On the
upside, it does greatly simplify the queue management.

The uacce_mm struct, that tracks all queues bound to an mm, was only
used by the mm_exit() callback. Remove it.

Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Acked-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Link: https://lore.kernel.org/r/20200423125329.782066-2-jean-philippe@linaro.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
uacce: unmap remaining mmapping from user space 2020-03-06T01:28:24+00:00 Zhangfei Gao zhangfei.gao@linaro.org 2020-02-26T07:12:06+00:00 acc670dba9f57298a6afd7cdfc9a7254292bbec9 When uacce parent device module is removed, user app may still keep the mmaped area, which can be accessed unsafely. When rmmod, Parent device driver will call uacce_remove, which unmap all remaining mapping from user space for safety. VM_FAULT_SIGBUS is also reported to user space accordingly. Suggested-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> 
When uacce parent device module is removed, user app may
still keep the mmaped area, which can be accessed unsafely.
When rmmod, Parent device driver will call uacce_remove,
which unmap all remaining mapping from user space for safety.
VM_FAULT_SIGBUS is also reported to user space accordingly.

Suggested-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>