linux/drivers/char
Linus Torvalds 1d239c1eb8 IOMMU Updates for Linux v5.20/v6.0:
Including:
 
 	- Most intrusive patch is small and changes the default
 	  allocation policy for DMA addresses. Before the change the
 	  allocator tried its best to find an address in the first 4GB.
 	  But that lead to performance problems when that space gets
 	  exhaused, and since most devices are capable of 64-bit DMA
 	  these days, we changed it to search in the full DMA-mask
 	  range from the beginning.  This change has the potential to
 	  uncover bugs elsewhere, in the kernel or the hardware. There
 	  is a Kconfig option and a command line option to restore the
 	  old behavior, but none of them is enabled by default.
 
 	- Add Robin Murphy as reviewer of IOMMU code and maintainer for
 	  the dma-iommu and iova code
 
 	- Chaning IOVA magazine size from 1032 to 1024 bytes to save
 	  memory
 
 	- Some core code cleanups and dead-code removal
 
 	- Support for ACPI IORT RMR node
 
 	- Support for multiple PCI domains in the AMD-Vi driver
 
 	- ARM SMMU changes from Will Deacon:
 
 	  - Add even more Qualcomm device-tree compatible strings
 
 	  - Support dumping of IMP DEF Qualcomm registers on TLB sync
 	    timeout
 
 	  - Fix reference count leak on device tree node in Qualcomm
 	    driver
 
 	- Intel VT-d driver updates from Lu Baolu:
 
 	  - Make intel-iommu.h private
 
 	  - Optimize the use of two locks
 
 	  - Extend the driver to support large-scale platforms
 
 	  - Cleanup some dead code
 
 	- MediaTek IOMMU refactoring and support for TTBR up to 35bit
 
 	- Basic support for Exynos SysMMU v7
 
 	- VirtIO IOMMU driver gets a map/unmap_pages() implementation
 
 	- Other smaller cleanups and fixes
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Merge tag 'iommu-updates-v5.20-or-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu updates from Joerg Roedel:

 - The most intrusive patch is small and changes the default allocation
   policy for DMA addresses.

   Before the change the allocator tried its best to find an address in
   the first 4GB. But that lead to performance problems when that space
   gets exhaused, and since most devices are capable of 64-bit DMA these
   days, we changed it to search in the full DMA-mask range from the
   beginning.

   This change has the potential to uncover bugs elsewhere, in the
   kernel or the hardware. There is a Kconfig option and a command line
   option to restore the old behavior, but none of them is enabled by
   default.

 - Add Robin Murphy as reviewer of IOMMU code and maintainer for the
   dma-iommu and iova code

 - Chaning IOVA magazine size from 1032 to 1024 bytes to save memory

 - Some core code cleanups and dead-code removal

 - Support for ACPI IORT RMR node

 - Support for multiple PCI domains in the AMD-Vi driver

 - ARM SMMU changes from Will Deacon:
      - Add even more Qualcomm device-tree compatible strings
      - Support dumping of IMP DEF Qualcomm registers on TLB sync
        timeout
      - Fix reference count leak on device tree node in Qualcomm driver

 - Intel VT-d driver updates from Lu Baolu:
      - Make intel-iommu.h private
      - Optimize the use of two locks
      - Extend the driver to support large-scale platforms
      - Cleanup some dead code

 - MediaTek IOMMU refactoring and support for TTBR up to 35bit

 - Basic support for Exynos SysMMU v7

 - VirtIO IOMMU driver gets a map/unmap_pages() implementation

 - Other smaller cleanups and fixes

* tag 'iommu-updates-v5.20-or-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (116 commits)
  iommu/amd: Fix compile warning in init code
  iommu/amd: Add support for AVIC when SNP is enabled
  iommu/amd: Simplify and Consolidate Virtual APIC (AVIC) Enablement
  ACPI/IORT: Fix build error implicit-function-declaration
  drivers: iommu: fix clang -wformat warning
  iommu/arm-smmu: qcom_iommu: Add of_node_put() when breaking out of loop
  iommu/arm-smmu-qcom: Add SM6375 SMMU compatible
  dt-bindings: arm-smmu: Add compatible for Qualcomm SM6375
  MAINTAINERS: Add Robin Murphy as IOMMU SUBSYTEM reviewer
  iommu/amd: Do not support IOMMUv2 APIs when SNP is enabled
  iommu/amd: Do not support IOMMU_DOMAIN_IDENTITY after SNP is enabled
  iommu/amd: Set translation valid bit only when IO page tables are in use
  iommu/amd: Introduce function to check and enable SNP
  iommu/amd: Globally detect SNP support
  iommu/amd: Process all IVHDs before enabling IOMMU features
  iommu/amd: Introduce global variable for storing common EFR and EFR2
  iommu/amd: Introduce Support for Extended Feature 2 Register
  iommu/amd: Change macro for IOMMU control register bit shift to decimal value
  iommu/exynos: Enable default VM instance on SysMMU v7
  iommu/exynos: Add SysMMU v7 register set
  ...
2022-08-06 10:42:38 -07:00
..
agp IOMMU Updates for Linux v5.20/v6.0: 2022-08-06 10:42:38 -07:00
hw_random SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
ipmi ipmi:ipmb: Fix refcount leak in ipmi_ipmb_probe 2022-05-12 10:00:04 -05:00
mwave char/mwave: Adjust io port register size 2021-12-03 14:27:06 +01:00
pcmcia Char / Misc / Other smaller driver subsystem updates for 5.19-rc1 2022-06-03 11:36:34 -07:00
tpm tpm: Add check for Failure mode for TPM2 modules 2022-08-03 23:56:20 +03:00
xilinx_hwicap xilinx_hwicap: cleanup comments 2022-02-25 12:08:57 +01:00
xillybus char: xillybus: fix a refcount leak in cleanup_dev() 2022-04-24 17:30:45 +02:00
adi.c
apm-emulation.c apm-emulation: drop unexpected word "the" in the comments 2022-06-27 16:15:27 +02:00
applicom.c applicom: unneed to initialise statics to 0 2021-12-21 10:14:08 +01:00
applicom.h
bsr.c powerpc/BSR: Make use of the helper macro LIST_HEAD() 2022-02-25 12:10:15 +01:00
ds1620.c
dsp56k.c
dtlk.c
hangcheck-timer.c
hpet.c hpet: remove unused writeq/readq function definitions 2022-02-04 16:45:39 +01:00
Kconfig Char / Misc driver changes for 6.0-rc1 2022-08-04 11:05:48 -07:00
lp.c char: lp: remove redundant initialization of err 2022-06-10 15:29:50 +02:00
Makefile char: remove VR41XX related char driver 2022-07-28 16:12:33 +02:00
mem.c /dev/mem: make reads and writes interruptible 2022-04-24 17:31:01 +02:00
misc.c char: misc: remove usage of list iterator past the loop body 2022-04-24 17:15:12 +02:00
mspec.c
nsc_gpio.c
nvram.c
nwbutton.c
nwbutton.h
nwflash.c
pc8736x_gpio.c
powernv-op-panel.c
ppdev.c
ps3flash.c
random.c Char / Misc driver changes for 6.0-rc1 2022-08-04 11:05:48 -07:00
scx200_gpio.c
sonypi.c
tlclk.c
toshiba.c
ttyprintk.c char: ttyprintk: register console 2022-04-22 16:24:47 +02:00
uv_mmtimer.c
virtio_console.c Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00