Commit Graph

1396687 Commits

Author SHA1 Message Date
YiPeng Chai
13c91b5b43 drm/amd/ras: Add rascore unified interface function
1. Complete the initialization call of all
   sub-functions.
2. Export common interfaces.

V2:
  Remove the use of typedef to define function pointer.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:30 -04:00
YiPeng Chai
54ad42c23d drm/amd/ras: Add cper conversion function
Add cper conversion function.

V3:
  Change commit message and update the calling function.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Signed-off-by: Xiang Liu <xiang.liu@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:30 -04:00
YiPeng Chai
0ec9ed84fb drm/amd/ras: Use ring buffer to record ras ecc data
Use ring buffer to record ras ecc data.

V3:
  Change commit message and rename the file and
  function names.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:30 -04:00
YiPeng Chai
ea61341b90 drm/amd/ras: Add thread to handle ras events
Add thread to handle ras events.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:30 -04:00
YiPeng Chai
19030244e1 drm/amd/ras: Add ras ioctl command handler
Add ras ioctl command handler.

V2:
  Remove ras global device list.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:29 -04:00
YiPeng Chai
c49ef01183 drm/amd/ras: Add psp ras common functions
Add psp ras common functions.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:29 -04:00
YiPeng Chai
9f3083dc9f drm/amd/ras: Add psp v13_0 ras functions
Add psp v13_0 ras functions.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:29 -04:00
YiPeng Chai
5c3be5defc drm/amd/ras: Add eeprom ras functions
Add eeprom ras functions.

V5:
  Remove duplicate data structure definition.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:29 -04:00
YiPeng Chai
a8f2352a41 drm/amd/ras: Add gfx common ras functions
Add gfx common ras functions.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:29 -04:00
YiPeng Chai
4b23ebf7a0 drm/amd/ras: Add gfx v9_0 ras functions
Add gfx v9_0 ras functions.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:29 -04:00
YiPeng Chai
7a3f9c0992 drm/amd/ras: Add umc common ras functions
Add umc common ras functions.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:29 -04:00
YiPeng Chai
8bd7fe95a4 drm/amd/ras: Add umc v12_0 ras functions
Add umc v12_0 ras functions.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:29 -04:00
YiPeng Chai
df2d8574c5 drm/amd/ras: Add nbio common ras functions
Add nbio common ras functions.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:29 -04:00
YiPeng Chai
fa4fe20f45 drm/amd/ras: Add nbio v7_9 ras functions
Add nbio v7_9 ras functions.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:29 -04:00
YiPeng Chai
adf0e0e089 drm/amd/ras: Add mp1 common ras functions
Add mp1 common ras functions.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:28 -04:00
YiPeng Chai
71abe27a9a drm/amd/ras: Add mp1 v13_0 ras functions
Add mp1 v13_0 ras functions.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:28 -04:00
YiPeng Chai
88e379e5b8 drm/amd/ras: Add aca common ras functions
Add aca common ras functions:
1. Aca hw init/fini.
2. Get ecc count of each ras block.
3. Update query ecc count from mp1.
4. Clear ras block ecc count.

V3:
  Update the calling function.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:28 -04:00
YiPeng Chai
fd98319f73 drm/amd/ras: Add ras aca parser v1.0
Add ras aca parser v1.0.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:28 -04:00
Sunil Khatri
b1dd0db1c6 drm/amdgpu: clean up amdgpu hmm range functions
Clean up the amdgpu hmm range functions for clearer
definition of each.

a. Split amdgpu_ttm_tt_get_user_pages_done into two:
   1. amdgpu_hmm_range_valid: To check if the user pages
      are valid and update seq num
   2. amdgpu_hmm_range_free: Clean up the hmm range
      and pfn memory.

b. amdgpu_ttm_tt_get_user_pages_done and
   amdgpu_ttm_tt_discard_user_pages are similar function so remove
   discard and directly use amdgpu_hmm_range_free to clean up the
   hmm range and pfn memory.

Suggested-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:28 -04:00
Sunil Khatri
e095b55155 drm/amdgpu: use user provided hmm_range buffer in amdgpu_ttm_tt_get_user_pages
update the amdgpu_ttm_tt_get_user_pages and all dependent function
along with it callers to use a user allocated hmm_range buffer instead
hmm layer allocates the buffer.

This is a need to get hmm_range pointers easily accessible
without accessing the bo and that is a requirement for the
userqueue to lock the userptrs effectively.

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:28 -04:00
Jonathan Kim
079ae5118e drm/amdkfd: fix suspend/resume all calls in mes based eviction path
Suspend/resume all gangs should be done with the device lock is held.

Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Harish Kasiviswanathan <harish.kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:28 -04:00
Jonathan Kim
277bb0f83e drm/amdgpu: enable suspend/resume all for gfx 12
Suspend/resume all gangs has been available for GFX12 for a while now
so enable it.

Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:28 -04:00
Jonathan Kim
0ef930e1fa drm/amdgpu: fix hung reset queue array memory allocation
By design the MES will return an array result that is twice the number
of hung doorbells it can report.

i.e. if up k reported doorbells are supported, then the
second half of the array, also of length k, holds the HQD information
(type/queue/pipe) where queue 1 corresponds to index 0 and k,
queue 2 corresponds to index 1 and k + 1 etc ...

The driver will use the HDQ info to target queue/pipe reset for
hardware scheduled user compute queues.

Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:28 -04:00
Jonathan Kim
8745ca5efb drm/amdgpu: fix initialization of doorbell array for detect and hang
Initialized doorbells should be set to invalid rather than 0 to prevent
driver from over counting hung doorbells since it checks against the
invalid value to begin with.

Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:28 -04:00
Jonathan Kim
d0de79f66a drm/amdgpu: fix gfx12 mes packet status return check
GFX12 MES uses low 32 bits of status return for success (1 or 0)
and high bits for debug information if low bits are 0.

GFX11 MES doesn't do this so checking full 64-bit status return
for 1 or 0 is still valid.

Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2025-10-13 14:14:16 -04:00
Jesse.Zhang
883f309add drm/amdgpu: Fix NULL pointer dereference in VRAM logic for APU devices
Previously, APU platforms (and other scenarios with uninitialized VRAM managers)
triggered a NULL pointer dereference in `ttm_resource_manager_usage()`. The root
cause is not that the `struct ttm_resource_manager *man` pointer itself is NULL,
but that `man->bdev` (the backing device pointer within the manager) remains
uninitialized (NULL) on APUs—since APUs lack dedicated VRAM and do not fully
set up VRAM manager structures. When `ttm_resource_manager_usage()` attempts to
acquire `man->bdev->lru_lock`, it dereferences the NULL `man->bdev`, leading to
a kernel OOPS.

1. **amdgpu_cs.c**: Extend the existing bandwidth control check in
   `amdgpu_cs_get_threshold_for_moves()` to include a check for
   `ttm_resource_manager_used()`. If the manager is not used (uninitialized
   `bdev`), return 0 for migration thresholds immediately—skipping VRAM-specific
   logic that would trigger the NULL dereference.

2. **amdgpu_kms.c**: Update the `AMDGPU_INFO_VRAM_USAGE` ioctl and memory info
   reporting to use a conditional: if the manager is used, return the real VRAM
   usage; otherwise, return 0. This avoids accessing `man->bdev` when it is
   NULL.

3. **amdgpu_virt.c**: Modify the vf2pf (virtual function to physical function)
   data write path. Use `ttm_resource_manager_used()` to check validity: if the
   manager is usable, calculate `fb_usage` from VRAM usage; otherwise, set
   `fb_usage` to 0 (APUs have no discrete framebuffer to report).

This approach is more robust than APU-specific checks because it:
- Works for all scenarios where the VRAM manager is uninitialized (not just APUs),
- Aligns with TTM's design by using its native helper function,
- Preserves correct behavior for discrete GPUs (which have fully initialized
  `man->bdev` and pass the `ttm_resource_manager_used()` check).

v4: use ttm_resource_manager_used(&adev->mman.vram_mgr.manager) instead of checking the adev->gmc.is_app_apu flag (Christian)

Reviewed-by: Christian König <christian.koenig@amd.com>
Suggested-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:15 -04:00
Christian König
33cc891b56 drm/amdgpu: hide VRAM sysfs attributes on GPUs without VRAM
Otherwise accessing them can cause a crash.

Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Mangesh Gadre <Mangesh.Gadre@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:15 -04:00
Sathishkumar S
74de0eaa00 drm/amdgpu: fix bit shift logic
BIT_ULL(n) sets nth bit, remove explicit shift and set the position

Fixes: a7a411e246 ("drm/amdgpu: fix shift-out-of-bounds in amdgpu_debugfs_jpeg_sched_mask_set")
Signed-off-by: Sathishkumar S <sathishkumar.sundararaju@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:15 -04:00
Timur Kristóf
6917112af2 drm/amd/powerplay: Fix CIK shutdown temperature
Remove extra multiplication.

CIK GPUs such as Hawaii appear to use PP_TABLE_V0 in which case
the shutdown temperature is hardcoded in smu7_init_dpm_defaults
and is already multiplied by 1000. The value was mistakenly
multiplied another time by smu7_get_thermal_temperature_range.

Fixes: 4ba082572a ("drm/amd/powerplay: export the thermal ranges of VI asics (V2)")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/1676
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:15 -04:00
Alex Deucher
ef38b4eab1 drm/amdgpu: drop unused structures in amdgpu_drm.h
These were never used and are duplicated with the
interface that is used.  Maybe leftovers from a previous
revision of the patch that added them.

Fixes: 90c448fef3 ("drm/amdgpu: add new AMDGPU_INFO subquery for userq objects")
Reviewed-by: Prike Liang <Prike.Liang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:15 -04:00
Gui-Dong Han
6df8e84aa6 drm/amdgpu: use atomic functions with memory barriers for vm fault info
The atomic variable vm_fault_info_updated is used to synchronize access to
adev->gmc.vm_fault_info between the interrupt handler and
get_vm_fault_info().

The default atomic functions like atomic_set() and atomic_read() do not
provide memory barriers. This allows for CPU instruction reordering,
meaning the memory accesses to vm_fault_info and the vm_fault_info_updated
flag are not guaranteed to occur in the intended order. This creates a
race condition that can lead to inconsistent or stale data being used.

The previous implementation, which used an explicit mb(), was incomplete
and inefficient. It failed to account for all potential CPU reorderings,
such as the access of vm_fault_info being reordered before the atomic_read
of the flag. This approach is also more verbose and less performant than
using the proper atomic functions with acquire/release semantics.

Fix this by switching to atomic_set_release() and atomic_read_acquire().
These functions provide the necessary acquire and release semantics,
which act as memory barriers to ensure the correct order of operations.
It is also more efficient and idiomatic than using explicit full memory
barriers.

Fixes: b97dfa27ef ("drm/amdgpu: save vm fault information for amdkfd")
Cc: stable@vger.kernel.org
Signed-off-by: Gui-Dong Han <hanguidong02@gmail.com>
Signed-off-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:15 -04:00
Alex Deucher
ff780f4f80 drm/amdgpu: set an error on all fences from a bad context
When we backup ring contents to reemit after a queue reset,
we don't backup ring contents from the bad context.  When
we signal the fences, we should set an error on those
fences as well.

v2: misc cleanups
v3: add locking for fence error, fix comment (Christian)
v4: fix wrap around, locking (Christian)

Fixes: 77cc0da39c ("drm/amdgpu: track ring state associated with a fence")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:15 -04:00
Alex Deucher
1f22fcb88b drm/amdgpu: handle wrap around in reemit handling
Compare the sequence numbers directly.

Fixes: 77cc0da39c ("drm/amdgpu: track ring state associated with a fence")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:15 -04:00
Alex Deucher
357d90be2c drm/amdgpu: fix handling of harvesting for ip_discovery firmware
Chips which use the IP discovery firmware loaded by the driver
reported incorrect harvesting information in the ip discovery
table in sysfs because the driver only uses the ip discovery
firmware for populating sysfs and not for direct parsing for the
driver itself as such, the fields that are used to print the
harvesting info in sysfs report incorrect data for some IPs.  Populate
the relevant fields for this case as well.

Fixes: 514678da56 ("drm/amdgpu/discovery: fix fw based ip discovery")
Acked-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:15 -04:00
Christian König
8f74c70be5 drm/amdgpu: block CE CS if not explicitely allowed by module option
The Constant Engine found on gfx6-gfx10 HW has been a notorious source of
problems.

RADV never used it in the first place, radeonsi only used it for a few
releases around 2017 for gfx6-gfx9 before dropping support for it as
well.

While investigating another problem I just recently found that submitting
to the CE seems to be completely broken on gfx9 for quite a while.

Since nobody complained about that problem it most likely means that
nobody is using any of the affected radeonsi versions on current Linux
kernels any more.

So to potentially phase out the support for the CE and eliminate another
source of problems block submitting CE IBs unless it is enabled again
using a debug flag.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:14 -04:00
Christian König
5d55ed19d4 drm/amdgpu: remove two invalid BUG_ON()s
Those can be triggered trivially by userspace.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:14 -04:00
Timur Kristóf
7bdd91abf0 drm/amd: Disable ASPM on SI
Enabling ASPM causes randoms hangs on Tahiti and Oland on Zen4.
It's unclear if this is a platform-specific or GPU-specific issue.
Disable ASPM on SI for the time being.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:14 -04:00
Timur Kristóf
5c05bcf6ae drm/amd/pm: Disable MCLK switching on SI at high pixel clocks
On various SI GPUs, a flickering can be observed near the bottom
edge of the screen when using a single 4K 60Hz monitor over DP.
Disabling MCLK switching works around this problem.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:14 -04:00
Matthew Schwartz
9858ea4c29 Revert "drm/amd/display: Only restore backlight after amdgpu_dm_init or dm_resume"
This fix regressed the original issue that commit 7875afafba
("drm/amd/display: Fix brightness level not retained over reboot") solved,
so revert it until a different approach to solve the regression that
it caused with AMD_PRIVATE_COLOR is found.

Fixes: a490c8d77d ("drm/amd/display: Only restore backlight after amdgpu_dm_init or dm_resume")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4620
Cc: stable@vger.kernel.org
Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-13 14:14:14 -04:00
Linus Torvalds
3a86608788 Linux 6.18-rc1 2025-10-12 13:42:36 -07:00
Linus Torvalds
3dd7b81235 i2c-for-6.18-rc1-hotfix
One revert because of a regression in the I2C core which has sadly not
 showed up during its time in -next.
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Merge tag 'i2c-for-6.18-rc1-hotfix' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c fix from Wolfram Sang:
 "One revert because of a regression in the I2C core which has sadly not
  showed up during its time in -next"

* tag 'i2c-for-6.18-rc1-hotfix' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  Revert "i2c: boardinfo: Annotate code used in init phase only"
2025-10-12 13:27:56 -07:00
Linus Torvalds
8765f46791 - Skip interrupt ID 0 in sifive-plic during suspend/resume because ID 0 is
reserved and accessing reserved register space could result in undefined
   behavior
 
 - Fix a function's retval check in aspeed-scu-ic
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Merge tag 'irq_urgent_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fixes from Borislav Petkov:

 - Skip interrupt ID 0 in sifive-plic during suspend/resume because
   ID 0 is reserved and accessing reserved register space could result
   in undefined behavior

 - Fix a function's retval check in aspeed-scu-ic

* tag 'irq_urgent_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/sifive-plic: Avoid interrupt ID 0 handling during suspend/resume
  irqchip/aspeed-scu-ic: Fix an IS_ERR() vs NULL check
2025-10-12 08:45:52 -07:00
Linus Torvalds
67029a49db tracing fixes for v6.18:
The previous fix to trace_marker required updating trace_marker_raw
 as well. The difference between trace_marker_raw from trace_marker
 is that the raw version is for applications to write binary structures
 directly into the ring buffer instead of writing ASCII strings.
 This is for applications that will read the raw data from the ring
 buffer and get the data structures directly. It's a bit quicker than
 using the ASCII version.
 
 Unfortunately, it appears that our test suite has several tests that
 test writes to the trace_marker file, but lacks any tests to the
 trace_marker_raw file (this needs to be remedied). Two issues came
 about the update to the trace_marker_raw file that syzbot found:
 
 - Fix tracing_mark_raw_write() to use per CPU buffer
 
   The fix to use the per CPU buffer to copy from user space was needed for
   both the trace_maker and trace_maker_raw file.
 
   The fix for reading from user space into per CPU buffers properly fixed
   the trace_marker write function, but the trace_marker_raw file wasn't
   fixed properly. The user space data was correctly written into the per CPU
   buffer, but the code that wrote into the ring buffer still used the user
   space pointer and not the per CPU buffer that had the user space data
   already written.
 
 - Stop the fortify string warning from writing into trace_marker_raw
 
   After converting the copy_from_user_nofault() into a memcpy(), another
   issue appeared. As writes to the trace_marker_raw expects binary data, the
   first entry is a 4 byte identifier. The entry structure is defined as:
 
   struct {
 	struct trace_entry ent;
 	int id;
 	char buf[];
   };
 
   The size of this structure is reserved on the ring buffer with:
 
     size = sizeof(*entry) + cnt;
 
   Then it is copied from the buffer into the ring buffer with:
 
     memcpy(&entry->id, buf, cnt);
 
   This use to be a copy_from_user_nofault(), but now converting it to
   a memcpy() triggers the fortify-string code, and causes a warning.
 
   The allocated space is actually more than what is copied, as the cnt
   used also includes the entry->id portion. Allocating sizeof(*entry)
   plus cnt is actually allocating 4 bytes more than what is needed.
 
   Change the size function to:
 
     size = struct_size(entry, buf, cnt - sizeof(entry->id));
 
   And update the memcpy() to unsafe_memcpy().
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Merge tag 'trace-v6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing fixes from Steven Rostedt:
 "The previous fix to trace_marker required updating trace_marker_raw as
  well. The difference between trace_marker_raw from trace_marker is
  that the raw version is for applications to write binary structures
  directly into the ring buffer instead of writing ASCII strings. This
  is for applications that will read the raw data from the ring buffer
  and get the data structures directly. It's a bit quicker than using
  the ASCII version.

  Unfortunately, it appears that our test suite has several tests that
  test writes to the trace_marker file, but lacks any tests to the
  trace_marker_raw file (this needs to be remedied). Two issues came
  about the update to the trace_marker_raw file that syzbot found:

   - Fix tracing_mark_raw_write() to use per CPU buffer

     The fix to use the per CPU buffer to copy from user space was
     needed for both the trace_maker and trace_maker_raw file.

     The fix for reading from user space into per CPU buffers properly
     fixed the trace_marker write function, but the trace_marker_raw
     file wasn't fixed properly. The user space data was correctly
     written into the per CPU buffer, but the code that wrote into the
     ring buffer still used the user space pointer and not the per CPU
     buffer that had the user space data already written.

   - Stop the fortify string warning from writing into trace_marker_raw

     After converting the copy_from_user_nofault() into a memcpy(),
     another issue appeared. As writes to the trace_marker_raw expects
     binary data, the first entry is a 4 byte identifier. The entry
     structure is defined as:

     struct {
   	struct trace_entry ent;
   	int id;
   	char buf[];
     };

     The size of this structure is reserved on the ring buffer with:

       size = sizeof(*entry) + cnt;

     Then it is copied from the buffer into the ring buffer with:

       memcpy(&entry->id, buf, cnt);

     This use to be a copy_from_user_nofault(), but now converting it to
     a memcpy() triggers the fortify-string code, and causes a warning.

     The allocated space is actually more than what is copied, as the
     cnt used also includes the entry->id portion. Allocating
     sizeof(*entry) plus cnt is actually allocating 4 bytes more than
     what is needed.

     Change the size function to:

       size = struct_size(entry, buf, cnt - sizeof(entry->id));

     And update the memcpy() to unsafe_memcpy()"

* tag 'trace-v6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: Stop fortify-string from warning in tracing_mark_raw_write()
  tracing: Fix tracing_mark_raw_write() to use buf and not ubuf
2025-10-11 16:06:04 -07:00
Linus Torvalds
c04022dccb Kbuild fixes for 6.18 #1
- Fix UAPI types check in headers_check.pl
 
 - Only enable -Werror for hostprogs with CONFIG_WERROR / W=e
 
 - Ignore fsync() error when output of gen_init_cpio is a pipe
 
 - Several little build fixes for recent modules.builtin.modinfo series
 
 Signed-off-by: Nathan Chancellor <nathan@kernel.org>
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Merge tag 'kbuild-fixes-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux

Pull Kbuild fixes from Nathan Chancellor:

 - Fix UAPI types check in headers_check.pl

 - Only enable -Werror for hostprogs with CONFIG_WERROR / W=e

 - Ignore fsync() error when output of gen_init_cpio is a pipe

 - Several little build fixes for recent modules.builtin.modinfo series

* tag 'kbuild-fixes-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
  kbuild: Use '--strip-unneeded-symbol' for removing module device table symbols
  s390/vmlinux.lds.S: Move .vmlinux.info to end of allocatable sections
  kbuild: Add '.rel.*' strip pattern for vmlinux
  kbuild: Restore pattern to avoid stripping .rela.dyn from vmlinux
  gen_init_cpio: Ignore fsync() returning EINVAL on pipes
  scripts/Makefile.extrawarn: Respect CONFIG_WERROR / W=e for hostprogs
  kbuild: uapi: Strip comments before size type check
2025-10-11 15:47:12 -07:00
Wolfram Sang
a8482d2c90 Revert "i2c: boardinfo: Annotate code used in init phase only"
This reverts commit 1a2b423be6 because we
got a regression report and need time to find out the details.

Reported-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Closes: https://lore.kernel.org/r/29ec0082-4dd4-4120-acd2-44b35b4b9487@oss.qualcomm.com
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2025-10-11 23:57:33 +02:00
Linus Torvalds
98906f9d85 RTC for 6.18
Subsystem:
  - Fix race when setting alarm
  - Ensure alarm irq is enabled when UIE is enabled
  - remove unneeded 'fast_io' parameter in regmap_config
 
 New driver:
  - SpacemiT P1 RTC
 
 Drivers:
  - efi: Remove wakeup functionality
  - optee: add alarms support
  - s3c: Drop support for S3C2410
  - zynqmp: Restore alarm functionality after kexec transition
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Merge tag 'rtc-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "This cycle, we have a new RTC driver, for the SpacemiT P1. The optee
  driver gets alarm support. We also get a fix for a race condition that
  was fairly rare unless while stress testing the alarms.

  Subsystem:
   - Fix race when setting alarm
   - Ensure alarm irq is enabled when UIE is enabled
   - remove unneeded 'fast_io' parameter in regmap_config

  New driver:
   - SpacemiT P1 RTC

  Drivers:
   - efi: Remove wakeup functionality
   - optee: add alarms support
   - s3c: Drop support for S3C2410
   - zynqmp: Restore alarm functionality after kexec transition"

* tag 'rtc-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (29 commits)
  rtc: interface: Ensure alarm irq is enabled when UIE is enabled
  rtc: tps6586x: Fix initial enable_irq/disable_irq balance
  rtc: cpcap: Fix initial enable_irq/disable_irq balance
  rtc: isl12022: Fix initial enable_irq/disable_irq balance
  rtc: interface: Fix long-standing race when setting alarm
  rtc: pcf2127: fix watchdog interrupt mask on pcf2131
  rtc: zynqmp: Restore alarm functionality after kexec transition
  rtc: amlogic-a4: Optimize global variables
  rtc: sd2405al: Add I2C address.
  rtc: Kconfig: move symbols to proper section
  rtc: optee: make optee_rtc_pm_ops static
  rtc: optee: Fix error code in optee_rtc_read_alarm()
  rtc: optee: fix error code in probe()
  dt-bindings: rtc: Convert apm,xgene-rtc to DT schema
  rtc: spacemit: support the SpacemiT P1 RTC
  rtc: optee: add alarm related rtc ops to optee rtc driver
  rtc: optee: remove unnecessary memory operations
  rtc: optee: fix memory leak on driver removal
  rtc: x1205: Fix Xicor X1205 vendor prefix
  dt-bindings: rtc: Fix Xicor X1205 vendor prefix
  ...
2025-10-11 11:56:47 -07:00
Linus Torvalds
2a6edd867b SCSI misc on 20251011
Fixes only in drivers (ufs, mvsas, qla2xxx, target) that came in just
 before or during the merge window.  The most important one is the
 qla2xxx which reverts a conversion to fix flexible array member
 warnings, that went up in this merge window but which turned out on
 further testing to be causing data corruption.
 
 Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Fixes only in drivers (ufs, mvsas, qla2xxx, target) that came in just
  before or during the merge window.

  The most important one is the qla2xxx which reverts a conversion to
  fix flexible array member warnings, that went up in this merge window
  but which turned out on further testing to be causing data corruption"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ufs: core: Include UTP error in INT_FATAL_ERRORS
  scsi: ufs: sysfs: Make HID attributes visible
  scsi: mvsas: Fix use-after-free bugs in mvs_work_queue
  scsi: ufs: core: Fix PM QoS mutex initialization
  scsi: ufs: core: Fix runtime suspend error deadlock
  Revert "scsi: qla2xxx: Fix memcpy() field-spanning write issue"
  scsi: target: target_core_configfs: Add length check to avoid buffer overflow
2025-10-11 11:49:00 -07:00
Linus Torvalds
9591fdb061 - Remove a bunch of asm implementing condition flags testing in KVM's
emulator in favor of int3_emulate_jcc() which is written in C
 
 - Replace KVM fastops with C-based stubs which avoids problems with the
   fastop infra related to latter not adhering to the C ABI due to their
   special calling convention and, more importantly, bypassing compiler
   control-flow integrity checking because they're written in asm
 
 - Remove wrongly used static branches and other ugliness accumulated
   over time in hyperv's hypercall implementation with a proper static
   function call to the correct hypervisor call variant
 
 - Add some fixes and modifications to allow running FRED-enabled kernels
   in KVM even on non-FRED hardware
 
 - Add kCFI improvements like validating indirect calls and prepare for
   enabling kCFI with GCC. Add cmdline params documentation and other
   code cleanups
 
 - Use the single-byte 0xd6 insn as the official #UD single-byte
   undefined opcode instruction as agreed upon by both x86 vendors
 
 - Other smaller cleanups and touchups all over the place
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Merge tag 'x86_core_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull more x86 updates from Borislav Petkov:

 - Remove a bunch of asm implementing condition flags testing in KVM's
   emulator in favor of int3_emulate_jcc() which is written in C

 - Replace KVM fastops with C-based stubs which avoids problems with the
   fastop infra related to latter not adhering to the C ABI due to their
   special calling convention and, more importantly, bypassing compiler
   control-flow integrity checking because they're written in asm

 - Remove wrongly used static branches and other ugliness accumulated
   over time in hyperv's hypercall implementation with a proper static
   function call to the correct hypervisor call variant

 - Add some fixes and modifications to allow running FRED-enabled
   kernels in KVM even on non-FRED hardware

 - Add kCFI improvements like validating indirect calls and prepare for
   enabling kCFI with GCC. Add cmdline params documentation and other
   code cleanups

 - Use the single-byte 0xd6 insn as the official #UD single-byte
   undefined opcode instruction as agreed upon by both x86 vendors

 - Other smaller cleanups and touchups all over the place

* tag 'x86_core_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
  x86,retpoline: Optimize patch_retpoline()
  x86,ibt: Use UDB instead of 0xEA
  x86/cfi: Remove __noinitretpoline and __noretpoline
  x86/cfi: Add "debug" option to "cfi=" bootparam
  x86/cfi: Standardize on common "CFI:" prefix for CFI reports
  x86/cfi: Document the "cfi=" bootparam options
  x86/traps: Clarify KCFI instruction layout
  compiler_types.h: Move __nocfi out of compiler-specific header
  objtool: Validate kCFI calls
  x86/fred: KVM: VMX: Always use FRED for IRQs when CONFIG_X86_FRED=y
  x86/fred: Play nice with invoking asm_fred_entry_from_kvm() on non-FRED hardware
  x86/fred: Install system vector handlers even if FRED isn't fully enabled
  x86/hyperv: Use direct call to hypercall-page
  x86/hyperv: Clean up hv_do_hypercall()
  KVM: x86: Remove fastops
  KVM: x86: Convert em_salc() to C
  KVM: x86: Introduce EM_ASM_3WCL
  KVM: x86: Introduce EM_ASM_1SRC2
  KVM: x86: Introduce EM_ASM_2CL
  KVM: x86: Introduce EM_ASM_2W
  ...
2025-10-11 11:19:16 -07:00
Linus Torvalds
2f0a750453 - Simplify inline asm flag output operands now that the minimum compiler
version supports the =@ccCOND syntax
 
 - Remove a bunch of AS_* Kconfig symbols which detect assembler support for
   various instruction mnemonics now that the minimum assembler version
   supports them all
 
 - The usual cleanups all over the place
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Merge tag 'x86_cleanups_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cleanups from Borislav Petkov:

 - Simplify inline asm flag output operands now that the minimum
   compiler version supports the =@ccCOND syntax

 - Remove a bunch of AS_* Kconfig symbols which detect assembler support
   for various instruction mnemonics now that the minimum assembler
   version supports them all

 - The usual cleanups all over the place

* tag 'x86_cleanups_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/asm: Remove code depending on __GCC_ASM_FLAG_OUTPUTS__
  x86/sgx: Use ENCLS mnemonic in <kernel/cpu/sgx/encls.h>
  x86/mtrr: Remove license boilerplate text with bad FSF address
  x86/asm: Use RDPKRU and WRPKRU mnemonics in <asm/special_insns.h>
  x86/idle: Use MONITORX and MWAITX mnemonics in <asm/mwait.h>
  x86/entry/fred: Push __KERNEL_CS directly
  x86/kconfig: Remove CONFIG_AS_AVX512
  crypto: x86 - Remove CONFIG_AS_VPCLMULQDQ
  crypto: X86 - Remove CONFIG_AS_VAES
  crypto: x86 - Remove CONFIG_AS_GFNI
  x86/kconfig: Drop unused and needless config X86_64_SMP
2025-10-11 10:51:14 -07:00
Linus Torvalds
6bb71f0fe5 slab hotfix for 6.18-rc1
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Merge tag 'slab-for-6.18-rc1-hotfix' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab

Pull slab fix from Vlastimil Babka:
 "A NULL pointer deref hotfix"

* tag 'slab-for-6.18-rc1-hotfix' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
  slab: fix barn NULL pointer dereference on memoryless nodes
2025-10-11 10:40:24 -07:00