Commit graph

1,309,492 commits

Author SHA1 Message Date
Joerg Roedel
a33bf8d8ce iommu: Restore iommu_flush_iotlb_all()
This patch restores the iommu_flush_iotlb_all() function.
Commit

	69e5a17511 ("iommu: Remove useless flush from iommu_create_device_direct_mappings()")

claims it removed the last call-site, except it did not. There is still
at least one caller in

	drivers/gpu/drm/msm/msm_iommu.c

so keep the function around until all call-sites are updated.

Cc: Jason Gunthorpe <jgg@ziepe.ca>
Fixes: 69e5a17511 ("iommu: Remove useless flush from iommu_create_device_direct_mappings()")
Acked-by: Will Deacon <will@kernel.org>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 14:36:25 +01:00
Joerg Roedel
d14772c0d8 iommu: Fix prototype of iommu_paging_domain_alloc_flags()
The iommu_paging_domain_alloc_flags() prototype for
non-iommu kernel configurations lacks the 'static inline'
prefixes.

Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Vasant Hegde <vasant.hegde@amd.com>
Fixes: 20858d4ebb ("iommu: Introduce iommu_paging_domain_alloc_flags()")
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 14:35:47 +01:00
Jason Gunthorpe
4490ccc45f iommu: Create __iommu_alloc_identity_domain()
Consolidate all the code to create an IDENTITY domain into one
function. This removes the legacy __iommu_domain_alloc() path from all
paths, and preps it for final removal.

BLOCKED/IDENTITY/PAGING are now always allocated via a type specific
function.

[Joerg: Actually remove __iommu_domain_alloc()]

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20241028093810.5901-13-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 10:37:03 +01:00
Jason Gunthorpe
4208849ec7 iommu: Put domain allocation in __iommu_group_alloc_blocking_domain()
There is no longer a reason to call __iommu_domain_alloc() to allocate
the blocking domain. All drivers that support a native blocking domain
provide it via the ops, for other drivers we should call
iommu_paging_domain_alloc().

__iommu_group_alloc_blocking_domain() is the only place that allocates
an BLOCKED domain, so move the ops->blocked_domain logic there.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20241028093810.5901-12-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 10:08:23 +01:00
Vasant Hegde
4402f2627d iommu/amd: Implement global identity domain
Implement global identity domain. All device groups in identity domain
will share this domain.

In attach device path, based on device capability it will allocate per
device domain ID and GCR3 table. So that it can support SVA.

Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20241028093810.5901-11-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 10:08:22 +01:00
Vasant Hegde
ce2cd17546 iommu/amd: Enhance amd_iommu_domain_alloc_user()
Previous patch enhanced core layer to check device PASID capability and
pass right flags to ops->domain_alloc_user().

Enhance amd_iommu_domain_alloc_user() to allocate domain with
appropriate page table based on flags parameter.
  - If flags is empty then allocate domain with default page table type.
    This will eventually replace ops->domain_alloc().
    For UNMANAGED domain, core will call this interface with flags=0. So
    AMD driver will continue to allocate V1 page table.

  - If IOMMU_HWPT_ALLOC_PASID flags is passed then allocate domain with v2
    page table.

Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241028093810.5901-10-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 10:08:22 +01:00
Vasant Hegde
a005ef62f9 iommu/amd: Pass page table type as param to pdom_setup_pgtable()
Current code forces v1 page table for UNMANAGED domain and global page
table type (amd_iommu_pgtable) for rest of paging domain.

Following patch series adds support for domain_alloc_paging() ops. Also
enhances domain_alloc_user() to allocate page table based on 'flags.

Hence pass page table type as parameter to pdomain_setup_pgtable(). So
that caller can decide right page table type. Also update
dma_max_address() to take pgtable as parameter.

Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jacob Pan <jacob.pan@linux.microsoft.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241028093810.5901-9-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 10:08:21 +01:00
Vasant Hegde
b3c989083d iommu/amd: Separate page table setup from domain allocation
Currently protection_domain_alloc() allocates domain and also sets up
page table. Page table setup is required for PAGING domain only. Domain
type like SVA doesn't need page table. Hence move page table setup code
to separate function.

Also SVA domain allocation path does not call pdom_setup_pgtable().
Hence remove IOMMU_DOMAIN_SVA type check.

Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jacob Pan <jacob.pan@linux.microsoft.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241028093810.5901-8-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 10:08:21 +01:00
Vasant Hegde
d15f55d645 iommu/amd: Move V2 page table support check to early_amd_iommu_init()
amd_iommu_pgtable validation has to be done before calling
iommu_snp_enable(). It can be done immediately after reading IOMMU
features. Hence move this check to early_amd_iommu_init().

Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241028093810.5901-7-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 10:08:20 +01:00
Vasant Hegde
b0ffdb23e9 iommu/amd: Add helper function to check GIOSUP/GTSUP
amd_iommu_gt_ppr_supported() only checks for GTSUP. To support PASID
with V2 page table we need GIOSUP as well. Hence add new helper function
to check GIOSUP/GTSUP.

Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241028093810.5901-6-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 10:08:20 +01:00
Vasant Hegde
60c30aa6af iommu/arm-smmu-v3: Enhance domain_alloc_user() to allocate PASID capable domain
Core layer is modified to call domain_alloc_user() to allocate PASID
capable domain. Enhance arm_smmu_domain_alloc_user() to allocate
PASID capable domain based on the 'flags' parameter.

Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20241028093810.5901-5-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 10:08:19 +01:00
Jason Gunthorpe
b7a0855eb9 iommu: Add new flag to explictly request PASID capable domain
Introduce new flag (IOMMU_HWPT_ALLOC_PASID) to domain_alloc_users() ops.
If IOMMU supports PASID it will allocate domain. Otherwise return error.
In error path check for -EOPNOTSUPP and try to allocate non-PASID
domain so that DMA-API mode work fine for drivers which does not support
PASID as well.

Also modify __iommu_group_alloc_default_domain() to call
iommu_paging_domain_alloc_flags() with appropriate flag when allocating
paging domain.

Signed-off-by: Jason Gunthorpe <jgg@ziepe.ca>
Co-developed-by: Vasant Hegde <vasant.hegde@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20241028093810.5901-4-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 10:08:18 +01:00
Jason Gunthorpe
20858d4ebb iommu: Introduce iommu_paging_domain_alloc_flags()
Currently drivers calls iommu_paging_domain_alloc(dev) to get an
UNMANAGED domain. This is not sufficient to support PASID with
UNMANAGED domain as some HW like AMD requires certain page table type
to support PASIDs.

Also the domain_alloc_paging op only passes device as param for domain
allocation. This is not sufficient for AMD driver to decide the right
page table.

Instead of extending ops->domain_alloc_paging() it was decided to
enhance ops->domain_alloc_user() so that caller can pass various
additional flags.

Hence add iommu_paging_domain_alloc_flags() API which takes flags as
parameter. Caller can pass additional parameter to indicate type of
domain required, etc. iommu_paging_domain_alloc_flags() internally calls
appropriate callback function to allocate a domain.

Signed-off-by: Jason Gunthorpe <jgg@ziepe.ca>
[Added description - Vasant]
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20241028093810.5901-3-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 10:07:37 +01:00
Jason Gunthorpe
541b967f5a iommu: Refactor __iommu_domain_alloc()
Following patch will introduce iommu_paging_domain_alloc_flags() API.
Hence move domain init code to separate function so that it can be
reused.

Also move iommu_get_dma_cookie() setup iommu_setup_default_domain() as
it is required in DMA API mode only.

Signed-off-by: Jason Gunthorpe <jgg@ziepe.ca>
[Split the patch and added description - Vasant]
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
Link: https://lore.kernel.org/r/20241028093810.5901-2-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 10:06:17 +01:00
Lu Baolu
f6440fcc9c iommu: Remove iommu_domain_alloc()
The iommu_domain_alloc() interface is no longer used in the tree anymore.
Remove it to avoid dead code.

There is increasing demand for supporting multiple IOMMU drivers, and this
is the last bus-based thing standing in the way of that.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241009041147.28391-5-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 10:04:42 +01:00
Lu Baolu
ba1057ab5d drm/nouveau/tegra: Use iommu_paging_domain_alloc()
In nvkm_device_tegra_probe_iommu(), a paging domain is allocated for @dev
and attached to it on success. Use iommu_paging_domain_alloc() to make it
explicit.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20241009041147.28391-4-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 10:03:42 +01:00
Lu Baolu
0c069019f3 media: nvidia: tegra: Use iommu_paging_domain_alloc()
An iommu domain is allocated in tegra_vde_iommu_init() and is attached to
vde->dev. Use iommu_paging_domain_alloc() to make it explicit.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20241009041147.28391-3-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 10:03:41 +01:00
Lu Baolu
fae93d8da6 remoteproc: Use iommu_paging_domain_alloc()
An iommu domain is allocated in rproc_enable_iommu() and is attached to
rproc->dev.parent in the same function.

Use iommu_paging_domain_alloc() to make it explicit.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Beleswar Padhi <b-padhi@ti.com>
Link: https://lore.kernel.org/r/20241009041147.28391-2-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 10:03:41 +01:00
Jason Gunthorpe
69e5a17511 iommu: Remove useless flush from iommu_create_device_direct_mappings()
These days iommu_map() does not require external flushing, it always
internally handles any required flushes. Since
iommu_create_device_direct_mappings() only calls iommu_map(), remove
the extra call.

Since this is the last call site for iommu_flush_iotlb_all() remove it
too.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/0-v1-bb6c694e1b07+a29e1-iommu_no_flush_all_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 09:52:11 +01:00
Bartosz Golaszewski
a2f528e914 iommu/sysfs: constify the class struct
All functions that take the class address as argument expect a const
pointer so we can make the iommu class constant.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241018121725.61128-1-brgl@bgdev.pl
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-29 09:50:24 +01:00
Lu Baolu
6632863226 iommu: Remove iommu_present()
The last callsite of iommu_present() is removed by commit <45c690aea8>
("drm/tegra: Use iommu_paging_domain_alloc()"). Remove it to avoid dead
code.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20241009051808.29455-1-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-15 10:23:39 +02:00
Julia Lawall
7fd9aeb07f iommu: Reorganize kerneldoc parameter names
Reorganize kerneldoc parameter names to match the parameter
order in the function header.

Problems identified using Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Link: https://lore.kernel.org/r/20240930112121.95324-20-Julia.Lawall@inria.fr
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-10-15 10:21:11 +02:00
Linus Torvalds
8e929cb546 Linux 6.12-rc3 v6.12-rc3 2024-10-13 14:33:32 -07:00
Linus Torvalds
cfea70e835 two fixes for Windows symlink handling
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Merge tag '6.12-rc2-cifs-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:
 "Two fixes for Windows symlink handling"

* tag '6.12-rc2-cifs-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: Fix creating native symlinks pointing to current or parent directory
  cifs: Improve creating native symlinks pointing to directory
2024-10-13 10:52:39 -07:00
Linus Torvalds
ba01565ced USB fixes for 6.12-rc3
Here are some small USB fixes for some reported problems for 6.12-rc3.
 Include in here is:
   - fix for yurex driver that was caused in -rc1
   - build error fix for usbg network filesystem code
   - onboard_usb_dev build fix
   - dwc3 driver fixes for reported errors
   - gadget driver fix
   - new USB storage driver quirk
   - xhci resume bugfix
 
 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 'usb-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB fixes for some reported problems for 6.12-rc3.
  Include in here is:

   - fix for yurex driver that was caused in -rc1

   - build error fix for usbg network filesystem code

   - onboard_usb_dev build fix

   - dwc3 driver fixes for reported errors

   - gadget driver fix

   - new USB storage driver quirk

   - xhci resume bugfix

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

* tag 'usb-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  net/9p/usbg: Fix build error
  USB: yurex: kill needless initialization in yurex_read
  Revert "usb: yurex: Replace snprintf() with the safer scnprintf() variant"
  usb: xhci: Fix problem with xhci resume from suspend
  usb: misc: onboard_usb_dev: introduce new config symbol for usb5744 SMBus support
  usb: dwc3: core: Stop processing of pending events if controller is halted
  usb: dwc3: re-enable runtime PM after failed resume
  usb: storage: ignore bogus device raised by JieLi BR21 USB sound chip
  usb: gadget: core: force synchronous registration
2024-10-13 09:21:36 -07:00
Linus Torvalds
f683c9b134 Driver core fix for 6.12-rc3
Here is a single driver core fix, and a .mailmap update, for 6.12-rc3.
 
 The fix is for the rust driver core bindings, turned out that the
 from_raw binding wasn't a good idea (don't want to pass a pointer to a
 reference counted object without actually incrementing the pointer.)  So
 this change fixes it up as the from_raw binding came in in -rc1.
 
 The other change is a .mailmap update.
 
 Both 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 'driver-core-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg KH:
 "Here is a single driver core fix, and a .mailmap update.

  The fix is for the rust driver core bindings, turned out that the
  from_raw binding wasn't a good idea (don't want to pass a pointer to a
  reference counted object without actually incrementing the pointer.)
  So this change fixes it up as the from_raw binding came in in -rc1.

  The other change is a .mailmap update.

  Both have been in linux-next for a while with no reported issues"

* tag 'driver-core-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  mailmap: update mail for Fiona Behrens
  rust: device: change the from_raw() function
2024-10-13 09:10:52 -07:00
Linus Torvalds
36c254515d powerpc fixes for 6.12 #4
- Fix crash in memcpy on 8xx due to dcbz workaround since recent changes.
 
 Thanks to: Christophe Leroy.
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Merge tag 'powerpc-6.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fix from Michael Ellerman:

 - Fix crash in memcpy on 8xx due to dcbz workaround since recent
   changes

Thanks to Christophe Leroy.

* tag 'powerpc-6.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/8xx: Fix kernel DTLB miss on dcbz
2024-10-12 17:16:21 -07:00
Linus Torvalds
7234e2ea0e SCSI fixes on 20241011
four small fixes, three in drivers and one in the FC transport class
 to add idempotence to state setting.
 
 Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Four small fixes, three in drivers and one in the FC transport class
  to add idempotence to state setting"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: scsi_transport_fc: Allow setting rport state to current state
  scsi: wd33c93: Don't use stale scsi_pointer value
  scsi: fnic: Move flush_work initialization out of if block
  scsi: ufs: Use pre-calculated offsets in ufshcd_init_lrb()
2024-10-12 09:24:13 -07:00
Linus Torvalds
05749ecf5d hwmon fixes for v6.12-rc3
- Add missing dependencies on REGMAP_I2C for several drivers
 
 - Fix memory leak in adt7475 driver
 
 - Relabel Columbiaville temperature sensor in intel-m10-bmc-hwmon driver
   to match other sensor labels
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Merge tag 'hwmon-for-v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - Add missing dependencies on REGMAP_I2C for several drivers

 - Fix memory leak in adt7475 driver

 - Relabel Columbiaville temperature sensor in intel-m10-bmc-hwmon
   driver to match other sensor labels

* tag 'hwmon-for-v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (max1668) Add missing dependency on REGMAP_I2C
  hwmon: (ltc2991) Add missing dependency on REGMAP_I2C
  hwmon: (adt7470) Add missing dependency on REGMAP_I2C
  hwmon: (adm9240) Add missing dependency on REGMAP_I2C
  hwmon: (mc34vr500) Add missing dependency on REGMAP_I2C
  hwmon: (tmp513) Add missing dependency on REGMAP_I2C
  hwmon: (adt7475) Fix memory leak in adt7475_fan_pwm_config()
  hwmon: intel-m10-bmc-hwmon: relabel Columbiaville to CVL Die Temperature
2024-10-12 09:09:04 -07:00
Linus Torvalds
09f6b0c890 linux_kselftest-fixes-6.12-rc3
This kselftest update for Linux 6.12-rc3 consists of several fixes
 for build, run-time errors, and reporting errors:
 
 -- ftrace: regression test for a kernel crash when running function graph
    tracing and then enabling function profiler.
 
 -- rseq: fix for mm_cid test failure.
 
 -- vDSO:
    - fixes to reporting skip and other error conditions.
    - changes unconditionally build  chacha and getrandom tests on
      all architectures to make it easier for them to run in CIs.
    - build error when sched.h to bring in CLONE_NEWTIME define.
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Merge tag 'linux_kselftest-fixes-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fixes from Shuah Khan:
 "Fixes for build, run-time errors, and reporting errors:

   - ftrace: regression test for a kernel crash when running function
     graph tracing and then enabling function profiler.

   - rseq: fix for mm_cid test failure.

   - vDSO:
      - fixes to reporting skip and other error conditions
      - changes unconditionally build chacha and getrandom tests on all
        architectures to make it easier for them to run in CIs
      - build error when sched.h to bring in CLONE_NEWTIME define"

* tag 'linux_kselftest-fixes-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  ftrace/selftest: Test combination of function_graph tracer and function profiler
  selftests/rseq: Fix mm_cid test failure
  selftests: vDSO: Explicitly include sched.h
  selftests: vDSO: improve getrandom and chacha error messages
  selftests: vDSO: unconditionally build getrandom test
  selftests: vDSO: unconditionally build chacha test
2024-10-11 16:12:45 -07:00
Linus Torvalds
974099e40e Devicetree fixes for v6.12, part 1:
- Disable kunit tests for arm64+ACPI
 
 - Fix refcount issue in kunit tests
 
 - Drop constraints on non-conformant 'interrupt-map' in fsl,ls-extirq
 
 - Drop type ref on 'msi-parent in fsl,qoriq-mc binding
 
 - Move elgin,jg10309-01 to its own binding from trivial-devices
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Merge tag 'devicetree-fixes-for-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Disable kunit tests for arm64+ACPI

 - Fix refcount issue in kunit tests

 - Drop constraints on non-conformant 'interrupt-map' in fsl,ls-extirq

 - Drop type ref on 'msi-parent in fsl,qoriq-mc binding

 - Move elgin,jg10309-01 to its own binding from trivial-devices

* tag 'devicetree-fixes-for-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: Skip kunit tests when arm64+ACPI doesn't populate root node
  of: Fix unbalanced of node refcount and memory leaks
  dt-bindings: interrupt-controller: fsl,ls-extirq: workaround wrong interrupt-map number
  dt-bindings: misc: fsl,qoriq-mc: remove ref for msi-parent
  dt-bindings: display: elgin,jg10309-01: Add own binding
2024-10-11 16:07:15 -07:00
Linus Torvalds
9066258d0a fbdev platform driver migration for 6.12-rc3:
- switch fbdev drivers back to struct platform_driver::remove()
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Merge tag 'fbdev-for-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

Pull fbdev platform driver fix from Helge Deller:
 "Switch fbdev drivers back to struct platform_driver::remove()

  Now that 'remove()' has been converted to the sane new API, there's
  no reason for the 'remove_new()' use, so this converts back to the
  traditional and simpler name.

  See commits

     5c5a7680e6 ("platform: Provide a remove callback that returns no value")
     0edb555a65 ("platform: Make platform_driver::remove() return void")

  for background to this all"

* tag 'fbdev-for-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
  fbdev: Switch back to struct platform_driver::remove()
2024-10-11 15:56:02 -07:00
Linus Torvalds
547fc3225a gpio fixes for v6.12-rc3
- fix clock handle leak in probe() error path in gpio-aspeed
 - add a dummy register read to ensure the write actually completed
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Merge tag 'gpio-fixes-for-v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:

 - fix clock handle leak in probe() error path in gpio-aspeed

 - add a dummy register read to ensure the write actually completed

* tag 'gpio-fixes-for-v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: aspeed: Use devm_clk api to manage clock source
  gpio: aspeed: Add the flush write to ensure the write complete.
2024-10-11 15:42:26 -07:00
Linus Torvalds
6254d53727 NFS Client Bugfixes for Linux 6.12-rc
Localio Bugfixes:
   * Remove duplicated include in localio.c
   * Fix race in NFS calls to nfsd_file_put_local() and nfsd_serv_put()
   * Fix Kconfig for NFS_COMMON_LOCALIO_SUPPORT
   * Fix nfsd_file tracepoints to handle NULL rqstp pointers
 
 Other Bugfixes:
   * Fix program selection loop in svc_process_common
   * Fix integer overflow in decode_rc_list()
   * Prevent NULL-pointer dereference in nfs42_complete_copies()
   * Fix CB_RECALL performance issues when using a large number of delegations
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Merge tag 'nfs-for-6.12-2' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client fixes from Anna Schumaker:
 "Localio Bugfixes:
   - remove duplicated include in localio.c
   - fix race in NFS calls to nfsd_file_put_local() and nfsd_serv_put()
   - fix Kconfig for NFS_COMMON_LOCALIO_SUPPORT
   - fix nfsd_file tracepoints to handle NULL rqstp pointers

  Other Bugfixes:
   - fix program selection loop in svc_process_common
   - fix integer overflow in decode_rc_list()
   - prevent NULL-pointer dereference in nfs42_complete_copies()
   - fix CB_RECALL performance issues when using a large number of
     delegations"

* tag 'nfs-for-6.12-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  NFS: remove revoked delegation from server's delegation list
  nfsd/localio: fix nfsd_file tracepoints to handle NULL rqstp
  nfs_common: fix Kconfig for NFS_COMMON_LOCALIO_SUPPORT
  nfs_common: fix race in NFS calls to nfsd_file_put_local() and nfsd_serv_put()
  NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()
  SUNRPC: Fix integer overflow in decode_rc_list()
  sunrpc: fix prog selection loop in svc_process_common
  nfs: Remove duplicated include in localio.c
2024-10-11 15:37:15 -07:00
Linus Torvalds
a1029768f3 RCU fix for v6.12
Fix rcuog kthread wakeup invocation from softirq context on a CPU
 which has been marked offline. This can happen when new callbacks
 are enqueued from a softirq on an offline CPU before it calls
 rcutree_report_cpu_dead(). When this happens on NOCB configuration,
 the rcuog wake-up is deferred through an IPI to an online CPU.
 This is done to avoid call into the scheduler which can risk
 arming the RT-bandwidth after hrtimers have been migrated out
 and disabled. However, doing IPI call from softirq is not allowed
 Fix this by forcing deferred rcuog wakeup through the NOCB timer
 when the CPU is offline.
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Merge tag 'rcu.fixes.6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux

Pull RCU fix from Neeraj Upadhyay:
 "Fix rcuog kthread wakeup invocation from softirq context on a CPU
  which has been marked offline.

  This can happen when new callbacks are enqueued from a softirq on an
  offline CPU before it calls rcutree_report_cpu_dead(). When this
  happens on NOCB configuration, the rcuog wake-up is deferred through
  an IPI to an online CPU. This is done to avoid call into the scheduler
  which can risk arming the RT-bandwidth after hrtimers have been
  migrated out and disabled.

  However, doing IPI call from softirq is not allowed: Fix this by
  forcing deferred rcuog wakeup through the NOCB timer when the CPU is
  offline"

* tag 'rcu.fixes.6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux:
  rcu/nocb: Fix rcuog wake-up from offline softirq
2024-10-11 14:42:27 -07:00
Linus Torvalds
d947d6848a xen: branch for v6.12-rc3
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Merge tag 'for-linus-6.12a-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fix from Juergen Gross:
 "A fix for topology information of Xen PV guests"

* tag 'for-linus-6.12a-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  x86/xen: mark boot CPU of PV guest in MSR_IA32_APICBASE
2024-10-11 14:34:18 -07:00
Steven Rostedt
4ee5ca9a29 ftrace/selftest: Test combination of function_graph tracer and function profiler
Masami reported a bug when running function graph tracing then the
function profiler. The following commands would cause a kernel crash:

  # cd /sys/kernel/tracing/
  # echo function_graph > current_tracer
  # echo 1 > function_profile_enabled

In that order. Create a test to test this two to make sure this does not
come back as a regression.

Link: https://lore.kernel.org/172398528350.293426.8347220120333730248.stgit@devnote2

Link: https://lore.kernel.org/all/20241010165235.35122877@gandalf.local.home/
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-10-11 15:05:16 -06:00
Mathieu Desnoyers
a0cc649353 selftests/rseq: Fix mm_cid test failure
Adapt the rseq.c/rseq.h code to follow GNU C library changes introduced by:

glibc commit 2e456ccf0c34 ("Linux: Make __rseq_size useful for feature detection (bug 31965)")

Without this fix, rseq selftests for mm_cid fail:

./run_param_test.sh
Default parameters
Running test spinlock
Running compare-twice test spinlock
Running mm_cid test spinlock
Error: cpu id getter unavailable

Fixes: 18c2355838 ("selftests/rseq: Implement rseq mm_cid field support")
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Peter Zijlstra <peterz@infradead.org>
CC: Boqun Feng <boqun.feng@gmail.com>
CC: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
CC: Carlos O'Donell <carlos@redhat.com>
CC: Florian Weimer <fweimer@redhat.com>
CC: linux-kselftest@vger.kernel.org
CC: stable@vger.kernel.org
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-10-11 15:05:05 -06:00
Linus Torvalds
9e4c6c1ad9 io_uring-6.12-20241011
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Merge tag 'io_uring-6.12-20241011' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Explicitly have a mshot_finished condition for IORING_OP_RECV in
   multishot mode, similarly to what IORING_OP_RECVMSG has. This doesn't
   fix a bug right now, but it makes it harder to actually have a bug
   here if a request takes multiple iterations to finish.

 - Fix handling of retry of read/write of !FMODE_NOWAIT files. If they
   are pollable, that's all we need.

* tag 'io_uring-6.12-20241011' of git://git.kernel.dk/linux:
  io_uring/rw: allow pollable non-blocking attempts for !FMODE_NOWAIT
  io_uring/rw: fix cflags posting for single issue multishot read
2024-10-11 12:00:21 -07:00
Linus Torvalds
e643edac70 Power management updates for 6.12-rc3
- Fix the TPMI_RAPL_REG_DOMAIN_INFO register offset in the TPMI part of
    the Intel RAPL power capping driver, make it ignore minor hardware
    version mismatches (which only indicate exposing additional features)
    and update register definitions in it to enable PL4 support (Zhang
    Rui).
 
  - Add Arrow Lake-U to the list of processors supporting PL4 in the MSR
    part of the Intel RAPL power capping driver (Sumeet Pawnikar).
 
  - Remove excess pci_disable_device() calls from the processor part of
    the int340x thermal driver to address a warning triggered during
    module unload and remove unused CPU hotplug code related to RAPL
    support from it (Zhang Rui).
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Merge tag 'pm-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These address two issues in the TPMI module of the Intel RAPL power
  capping driver and one issue in the processor part of the Intel
  int340x thermal driver, update a CPU ID list and register definitions
  needed for RAPL PL4 support and remove some unused code.

  Specifics:

   - Fix the TPMI_RAPL_REG_DOMAIN_INFO register offset in the TPMI part
     of the Intel RAPL power capping driver, make it ignore minor
     hardware version mismatches (which only indicate exposing
     additional features) and update register definitions in it to
     enable PL4 support (Zhang Rui)

   - Add Arrow Lake-U to the list of processors supporting PL4 in the
     MSR part of the Intel RAPL power capping driver (Sumeet Pawnikar)

   - Remove excess pci_disable_device() calls from the processor part of
     the int340x thermal driver to address a warning triggered during
     module unload and remove unused CPU hotplug code related to RAPL
     support from it (Zhang Rui)"

* tag 'pm-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: intel: int340x: processor: Add MMIO RAPL PL4 support
  thermal: intel: int340x: processor: Remove MMIO RAPL CPU hotplug support
  powercap: intel_rapl_msr: Add PL4 support for Arrowlake-U
  powercap: intel_rapl_tpmi: Ignore minor version change
  thermal: intel: int340x: processor: Fix warning during module unload
  powercap: intel_rapl_tpmi: Fix bogus register reading
2024-10-11 11:41:20 -07:00
Linus Torvalds
f8fafb690b Thermal control fixes for 6.12-rc3
Address possible use-after-free scenarios during the processing of
 thermal netlink commands and during thermal zone removal (Rafael
 Wysocki).
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Merge tag 'thermal-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control fixes from Rafael Wysocki:
 "Address possible use-after-free scenarios during the processing of
  thermal netlink commands and during thermal zone removal (Rafael
  Wysocki)"

* tag 'thermal-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: core: Free tzp copy along with the thermal zone
  thermal: core: Reference count the zone in thermal_zone_get_by_id()
2024-10-11 11:35:30 -07:00
Linus Torvalds
325354cf00 ACPI fixes for 6.12-rc3
Reduce the number of ACPI IRQ override DMI quirks by combining quirks
 that cover similar systems while making them cover additional models
 at the same time (Hans de Goede).
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Merge tag 'acpi-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "Reduce the number of ACPI IRQ override DMI quirks by combining quirks
  that cover similar systems while making them cover additional models
  at the same time (Hans de Goede)"

* tag 'acpi-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: resource: Fold Asus Vivobook Pro N6506M* DMI quirks together
  ACPI: resource: Fold Asus ExpertBook B1402C* and B1502C* DMI quirks together
  ACPI: resource: Make Asus ExpertBook B2502 matches cover more models
  ACPI: resource: Make Asus ExpertBook B2402 matches cover more models
2024-10-11 11:32:10 -07:00
Linus Torvalds
22e6abaa72 pmdomain core:
- Fix alloc/free in dev_pm_domain_attach|detach_list()
 
 pmdomain providers:
  - qcom: Fix the return of uninitialized variable
 
 pmdomain consumers:
  - drm/tegra/gr3d: Revert conversion to dev_pm_domain_attach|detach_list()
 
 OPP core:
  - Fix error code in dev_pm_opp_set_config()
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Merge tag 'pmdomain-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

Pull pmdomain fixes from Ulf Hansson:
 "pmdomain core:
   - Fix alloc/free in dev_pm_domain_attach|detach_list()

  pmdomain providers:
   - qcom: Fix the return of uninitialized variable

  pmdomain consumers:
   - drm/tegra/gr3d: Revert conversion to dev_pm_domain_attach|detach_list()

  OPP core:
   - Fix error code in dev_pm_opp_set_config()"

* tag 'pmdomain-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
  PM: domains: Fix alloc/free in dev_pm_domain_attach|detach_list()
  Revert "drm/tegra: gr3d: Convert into dev_pm_domain_attach|detach_list()"
  pmdomain: qcom-cpr: Fix the return of uninitialized variable
  OPP: fix error code in dev_pm_opp_set_config()
2024-10-11 11:26:15 -07:00
Linus Torvalds
7351a8793d MMC core:
- Prevent splat from warning when setting maximum DMA segment
 
 MMC host:
  - mvsdio: Drop sg_miter support for PIO as it didn't work
  - sdhci-of-dwcmshc: Prevent stale interrupt for the T-Head 1520 variant
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Merge tag 'mmc-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:
 "MMC core:
   - Prevent splat from warning when setting maximum DMA segment

  MMC host:
   - mvsdio: Drop sg_miter support for PIO as it didn't work
   - sdhci-of-dwcmshc: Prevent stale interrupt for the T-Head 1520
     variant"

* tag 'mmc-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci-of-dwcmshc: Prevent stale command interrupt handling
  Revert "mmc: mvsdio: Use sg_miter for PIO"
  mmc: core: Only set maximum DMA segment size if DMA is supported
2024-10-11 11:23:21 -07:00
Linus Torvalds
3700dc91b3 ata fixes for 6.12-rc3
- Fix a hibernate regression where the disk was needlessly spun down and
    then immediately spun up both when entering and when resuming from
    hibernation (me)
 
  - Update the MAINTAINERS file to remove remnants from Jens maintainership
    of libata (Damien)
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Merge tag 'ata-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux

Pull ata fixes from Niklas Cassel:

 - Fix a hibernate regression where the disk was needlessly spun down
   and then immediately spun up both when entering and when resuming
   from hibernation (me)

 - Update the MAINTAINERS file to remove remnants from Jens
   maintainership of libata (Damien)

* tag 'ata-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
  ata: libata: Update MAINTAINERS file
  ata: libata: avoid superfluous disk spin down + spin up during hibernation
2024-10-11 11:18:31 -07:00
Linus Torvalds
befcc89362 drm fixes for 6.12-rc3
sched:
 - Avoid leaking lockdep map
 
 fbdev-dma:
 - Only clean up deferred I/O if instanciated
 
 amdgpu:
 - Fix invalid UBSAN warnings
 - Fix artifacts in MPO transitions
 - Hibernation fix
 
 amdkfd:
 - Fix an eviction fence leak
 
 radeon:
 - Add late register for connectors
 - Always set GEM function pointers
 
 i915:
 - HDCP refcount fix
 
 nouveau:
 - dmem: Fix privileged error in copy engine channel; Fix possible
   data leak in migrate_to_ram()
 - gsp: Fix coding style
 
 v3d:
 - Stop active perfmon before destroying it
 
 vc4:
 - Stop active perfmon before destroying it
 
 xe:
 - Drop GuC submit_wq pool
 - Fix error checking with xa_store()
 - Fix missing freq restore on GSC load error
 - Fix wedged_mode file permission
 - Fix use-after-free in ct communication
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Merge tag 'drm-fixes-2024-10-11' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Weekly fixes haul for drm, lots of small fixes all over, amdgpu, xe
  lead the way, some minor nouveau and radeon fixes, and then a bunch of
  misc all over.

  Nothing too scary or out of the unusual.

  sched:
   - Avoid leaking lockdep map

  fbdev-dma:
   - Only clean up deferred I/O if instanciated

  amdgpu:
   - Fix invalid UBSAN warnings
   - Fix artifacts in MPO transitions
   - Hibernation fix

  amdkfd:
   - Fix an eviction fence leak

  radeon:
   - Add late register for connectors
   - Always set GEM function pointers

  i915:
   - HDCP refcount fix

  nouveau:
   - dmem: Fix privileged error in copy engine channel; Fix possible
     data leak in migrate_to_ram()
   - gsp: Fix coding style

  v3d:
   - Stop active perfmon before destroying it

  vc4:
   - Stop active perfmon before destroying it

  xe:
   - Drop GuC submit_wq pool
   - Fix error checking with xa_store()
   - Fix missing freq restore on GSC load error
   - Fix wedged_mode file permission
   - Fix use-after-free in ct communication"

* tag 'drm-fixes-2024-10-11' of https://gitlab.freedesktop.org/drm/kernel:
  drm/fbdev-dma: Only cleanup deferred I/O if necessary
  drm/xe: Make wedged_mode debugfs writable
  drm/xe: Restore GT freq on GSC load error
  drm/xe/guc_submit: fix xa_store() error checking
  drm/xe/ct: fix xa_store() error checking
  drm/xe/ct: prevent UAF in send_recv()
  drm/radeon: always set GEM function pointer
  nouveau/dmem: Fix vulnerability in migrate_to_ram upon copy error
  nouveau/dmem: Fix privileged error in copy engine channel
  drm/amd/display: fix hibernate entry for DCN35+
  drm/amd/display: Clear update flags after update has been applied
  drm/amdgpu: partially revert powerplay `__counted_by` changes
  drm/radeon: add late_register for connector
  drm/amdkfd: Fix an eviction fence leak
  drm/vc4: Stop the active perfmon before being destroyed
  drm/v3d: Stop the active perfmon before being destroyed
  drm/i915/hdcp: fix connector refcounting
  drm/nouveau/gsp: remove extraneous ; after mutex
  drm/xe: Drop GuC submit_wq pool
  drm/sched: Use drm sched lockdep map for submit_wq
2024-10-11 11:13:05 -07:00
Christophe Leroy
8956c582ac powerpc/8xx: Fix kernel DTLB miss on dcbz
Following OOPS is encountered while loading test_bpf module
on powerpc 8xx:

[  218.835567] BUG: Unable to handle kernel data access on write at 0xcb000000
[  218.842473] Faulting instruction address: 0xc0017a80
[  218.847451] Oops: Kernel access of bad area, sig: 11 [#1]
[  218.852854] BE PAGE_SIZE=16K PREEMPT CMPC885
[  218.857207] SAF3000 DIE NOTIFICATION
[  218.860713] Modules linked in: test_bpf(+) test_module
[  218.865867] CPU: 0 UID: 0 PID: 527 Comm: insmod Not tainted 6.11.0-s3k-dev-09856-g3de3d71ae2e6-dirty #1280
[  218.875546] Hardware name: MIAE 8xx 0x500000 CMPC885
[  218.880521] NIP:  c0017a80 LR: beab859c CTR: 000101d4
[  218.885584] REGS: cac2bc90 TRAP: 0300   Not tainted  (6.11.0-s3k-dev-09856-g3de3d71ae2e6-dirty)
[  218.894308] MSR:  00009032 <EE,ME,IR,DR,RI>  CR: 55005555  XER: a0007100
[  218.901290] DAR: cb000000 DSISR: c2000000
[  218.901290] GPR00: 000185d1 cac2bd50 c21b9580 caf7c030 c3883fcc 00000008 cafffffc 00000000
[  218.901290] GPR08: 00040000 18300000 20000000 00000004 99005555 100d815e ca669d08 00000369
[  218.901290] GPR16: ca730000 00000000 ca2c004c 00000000 00000000 0000035d 00000311 00000369
[  218.901290] GPR24: ca732240 00000001 00030ba3 c3800000 00000000 00185d48 caf7c000 ca2c004c
[  218.941087] NIP [c0017a80] memcpy+0x88/0xec
[  218.945277] LR [beab859c] test_bpf_init+0x22c/0x3c90 [test_bpf]
[  218.951476] Call Trace:
[  218.953916] [cac2bd50] [beab8570] test_bpf_init+0x200/0x3c90 [test_bpf] (unreliable)
[  218.962034] [cac2bde0] [c0004c04] do_one_initcall+0x4c/0x1fc
[  218.967706] [cac2be40] [c00a2ec4] do_init_module+0x68/0x360
[  218.973292] [cac2be60] [c00a5194] init_module_from_file+0x8c/0xc0
[  218.979401] [cac2bed0] [c00a5568] sys_finit_module+0x250/0x3f0
[  218.985248] [cac2bf20] [c000e390] system_call_exception+0x8c/0x15c
[  218.991444] [cac2bf30] [c00120a8] ret_from_syscall+0x0/0x28

This happens in the main loop of memcpy()

  ==>	c0017a80:	7c 0b 37 ec 	dcbz    r11,r6
	c0017a84:	80 e4 00 04 	lwz     r7,4(r4)
	c0017a88:	81 04 00 08 	lwz     r8,8(r4)
	c0017a8c:	81 24 00 0c 	lwz     r9,12(r4)
	c0017a90:	85 44 00 10 	lwzu    r10,16(r4)
	c0017a94:	90 e6 00 04 	stw     r7,4(r6)
	c0017a98:	91 06 00 08 	stw     r8,8(r6)
	c0017a9c:	91 26 00 0c 	stw     r9,12(r6)
	c0017aa0:	95 46 00 10 	stwu    r10,16(r6)
	c0017aa4:	42 00 ff dc 	bdnz    c0017a80 <memcpy+0x88>

Commit ac9f97ff8b ("powerpc/8xx: Inconditionally use task PGDIR in
DTLB misses") relies on re-reading DAR register to know if an error is
due to a missing copy of a PMD entry in task's PGDIR, allthough DAR
was already read in the exception prolog and copied into thread
struct. This is because is it done very early in the exception and
there are not enough registers available to keep a pointer to thread
struct.

However, dcbz instruction is buggy and doesn't update DAR register on
fault. That is detected and generates a call to FixupDAR workaround
which updates DAR copy in thread struct but doesn't fix DAR register.

Let's fix DAR in addition to the update of DAR copy in thread struct.

Fixes: ac9f97ff8b ("powerpc/8xx: Inconditionally use task PGDIR in DTLB misses")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/2b851399bd87e81c6ccb87ea3a7a6b32c7aa04d7.1728118396.git.christophe.leroy@csgroup.eu
2024-10-11 15:53:06 +11:00
Dave Airlie
ac44ff7cec Driver Changes:
- Fix error checking with xa_store() (Matthe Auld)
 - Fix missing freq restore on GSC load error (Vinay)
 - Fix wedged_mode file permission (Matt Roper)
 - Fix use-after-free in ct communication (Matthew Auld)
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Merge tag 'drm-xe-fixes-2024-10-10' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes

Driver Changes:
- Fix error checking with xa_store() (Matthe Auld)
- Fix missing freq restore on GSC load error (Vinay)
- Fix wedged_mode file permission (Matt Roper)
- Fix use-after-free in ct communication (Matthew Auld)

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

From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/jri65tmv3bjbhqhxs5smv45nazssxzhtwphojem4uufwtjuliy@gsdhlh6kzsdy
2024-10-11 13:54:10 +10:00
Dave Airlie
b634acb2a0 Short summary of fixes pull:
fbdev-dma:
 - Only clean up deferred I/O if instanciated
 
 nouveau:
 - dmem: Fix privileged error in copy engine channel; Fix possible
 data leak in migrate_to_ram()
 - gsp: Fix coding style
 
 sched:
 - Avoid leaking lockdep map
 
 v3d:
 - Stop active perfmon before destroying it
 
 vc4:
 - Stop active perfmon before destroying it
 
 xe:
 - Drop GuC submit_wq pool
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Merge tag 'drm-misc-fixes-2024-10-10' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

Short summary of fixes pull:

fbdev-dma:
- Only clean up deferred I/O if instanciated

nouveau:
- dmem: Fix privileged error in copy engine channel; Fix possible
data leak in migrate_to_ram()
- gsp: Fix coding style

sched:
- Avoid leaking lockdep map

v3d:
- Stop active perfmon before destroying it

vc4:
- Stop active perfmon before destroying it

xe:
- Drop GuC submit_wq pool

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

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20241010133708.GA461532@localhost.localdomain
2024-10-11 09:03:30 +10:00
Dave Airlie
fe4a435bd0 Merge tag 'drm-intel-fixes-2024-10-10' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes
- HDCP refcount fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Zwd78Tnw8t3w9F16@jlahtine-mobl.ger.corp.intel.com
2024-10-11 08:55:27 +10:00