linux/drivers/char/agp
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.h char/agp: Disable frontend without CONFIG_DRM_LEGACY 2020-11-18 22:47:45 +01:00
ali-agp.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
alpha-agp.c char: agp: Change return type to vm_fault_t 2018-07-10 13:48:11 +10:00
amd64-agp.c x86/amd_nb: Unexport amd_cache_northbridges() 2022-04-05 19:22:27 +02:00
amd-k7-agp.c agp: use semicolons rather than commas to separate statements 2020-09-28 06:06:52 +10:00
ati-agp.c agp/ati: Return error from ati_create_page_map() 2022-01-14 15:15:45 +01:00
backend.c agp: Documentation fixes 2022-01-14 15:12:22 +01:00
compat_ioctl.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
compat_ioctl.h
efficeon-agp.c agp: efficeon: no need to set PG_reserved on GATT tables 2019-03-05 21:07:18 -08:00
frontend.c agp: Include "compat_ioctl.h" where necessary 2022-01-14 15:11:42 +01:00
generic.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
hp-agp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i460-agp.c Drivers: char: remove __dev* attributes. 2013-01-03 15:57:15 -08:00
intel-agp.c agp: intel: constify pci_device_id. 2017-08-04 16:59:46 +10:00
intel-agp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
intel-gtt.c IOMMU Updates for Linux v5.20/v6.0: 2022-08-06 10:42:38 -07:00
isoch.c agp: remove unused variable arqsz in agp_3_5_enable() 2020-01-03 16:08:05 +10:00
Kconfig parisc: parisc-agp requires SBA IOMMU driver 2021-04-06 11:46:39 +02:00
Makefile char/agp: Disable frontend without CONFIG_DRM_LEGACY 2020-11-18 22:47:45 +01:00
nvidia-agp.c agp/nvidia: Declare value returned by readl() as unused 2022-01-14 15:15:54 +01:00
parisc-agp.c parisc/agp: Annotate parisc agp init functions with __init 2021-11-30 21:49:33 +01:00
sis-agp.c sis-agp: convert to generic power management 2021-12-14 11:26:03 -06:00
sworks-agp.c agp/sworks: Remove unused variable 'current_size' 2022-01-14 15:15:59 +01:00
uninorth-agp.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
via-agp.c drm-misc-next for v5.18: 2022-02-01 19:02:41 +10:00