| Commit message (Collapse) | Author | Age | Files | Lines |
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In the case of parsing GFX deferred error from SMU corrected error
channel, the error count should be set to 1 instead of parsing from
MISC0 register, which is 0.
Signed-off-by: Xiang Liu <xiang.liu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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[Why]
The `vblank_config.offdelay` field follows the same semantics as the
`drm_vblank_offdelay` parameter. Setting it to 0 will never disable
vblank.
[How]
Set `offdelay` to a positive number.
Fixes: e45b6716de4b ("drm/amd/display: use a more lax vblank enable policy for DCN35+")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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[Why]
When link training fails, the phy clock will be disabled. However, in
enable_streams, it is assumed that link training succeeded and the
mux selects the phy clock, causing a hang when a register write is made.
[How]
When enable_stream is hit, check if link training failed. If it did, fall
back to the ref clock to avoid a hang and keep the system in a recoverable
state.
Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Brendan Tam <Brendan.Tam@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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[why]
this dscclk use DCN defined per DPM level will cause a DCFCLK increase.
needs to follow up.
This reverts commit 15b959534a39530a21d378190557cc8d1eab7b09
Reviewed-by: Yihan Zhu <yihan.zhu@amd.com>
Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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[Why]
Depending on when the HW latching event (vupdate) of double-buffered
registers happen relative to the PSR SDP (signals panel psr enter/exit)
deadline, and how bad the Panel clock has drifted since the last ALPM
off event, there can be up to 3 frames of delay between sending the PSR
exit cmd to DMUB fw, and when the panel starts displaying live frames.
This can manifest as micro-stuttering when userspace commit patterns
cause rapid toggling of the DRM vblank counter, since PSR enter/exit is
hooked up to DRM vblank disable/enable respectively.
In the ideal world, the panel should present the live frame immediately
on PSR exit cmd. But due to HW design and PSR limitations, immediate
exit can only happen by chance, when:
1. PSR exit cmd is ack'd by FW before HW latching (vupdate) event, and
2. Panel's SDP deadline -- determined by it's PSR Start Delay in DPCD
71h -- is after the vupdate event. The PSR exit SDP can then be sent
immediately after HW latches. Otherwise, we have to wait 1 frame. And
3. There is negligible drift between the panel's clock and source clock.
Otherwise, there can be up to 1 frame of drift.
Note that this delay is not expected with Panel Replay.
[How]
Since PSR power savings can be quite substantial, and there are a lot of
systems in the wild with PSR panels, It'll be nice to have a middle
ground that balances user experience with power savings.
A simple way to achieve this is by extending the vblank offdelay, such
that additional PSR exit delays will be less perceivable.
We can set:
20/100 * offdelay_ms = 3_frames_ms
=> offdelay_ms = 5 * 3_frames_ms
This ensures that `3_frames_ms` will only be experienced as a 20% delay
on top how long the panel has been static, and thus make the delay
less perceivable.
If this ends up being too high of a percentage, it can be dropped
further in a future change.
Fixes: 537ef0f88897 ("drm/amd/display: use new vblank enable policy for DCN35+")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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If compiled without SI or CIK support but amdgpu tries to load it
will run into failures with uninitialized callbacks.
Show a nicer message in this case and fail probe instead.
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4050
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Hook up zero RPM enable for 9070 and 9070 XT based on RDNA3
(smu 13.0.0 and 13.0.7) code.
Tested on 9070 XT Hellhound
Signed-off-by: Tomasz Pakuła <tomasz.pakula.oficjalny@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.12.x
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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The user can set any speed value.
If speed is greater than UINT_MAX/8, division by zero is possible.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: c52dcf49195d ("drm/amd/pp: Avoid divide-by-zero in fan_ctrl_set_fan_speed_rpm")
Signed-off-by: Denis Arefev <arefev@swemel.ru>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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The user can set any speed value.
If speed is greater than UINT_MAX/8, division by zero is possible.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: c52dcf49195d ("drm/amd/pp: Avoid divide-by-zero in fan_ctrl_set_fan_speed_rpm")
Signed-off-by: Denis Arefev <arefev@swemel.ru>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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The user can set any speed value.
If speed is greater than UINT_MAX/8, division by zero is possible.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 031db09017da ("drm/amd/powerplay/vega20: enable fan RPM and pwm settings V2")
Signed-off-by: Denis Arefev <arefev@swemel.ru>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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The user can set any speed value.
If speed is greater than UINT_MAX/8, division by zero is possible.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: b64625a303de ("drm/amd/pm: correct the address of Arcturus fan related registers")
Signed-off-by: Denis Arefev <arefev@swemel.ru>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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The user can set any speed value.
If speed is greater than UINT_MAX/8, division by zero is possible.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: c05d1c401572 ("drm/amd/swsmu: add aldebaran smu13 ip support (v3)")
Signed-off-by: Denis Arefev <arefev@swemel.ru>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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https://gitlab.freedesktop.org/drm/xe/kernel into drm-next
Driver Changes:
- Fix NULL pointer dereference on error path
- Add missing HW workaround for BMG
- Fix survivability mode not triggering
- Fix build warning when DRM_FBDEV_EMULATION is not set
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/vxy5kwdkzgp2u2umnyxv4ygslmdlvzjl22xotzxaw55dv7plpz@34miqxkbvggu
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WARNING: unmet direct dependencies detected for FB_IOMEM_HELPERS
Depends on [n]: HAS_IOMEM [=y] && FB_CORE [=n]
Selected by [m]:
- DRM_XE_DISPLAY [=y] && HAS_IOMEM [=y] && DRM [=m] && DRM_XE [=m] && DRM_XE [=m]=m [=m] && HAS_IOPORT [=y]
DRM_XE_DISPLAY requires FB_IOMEM_HELPERS, but the dependency FB_CORE is
missing, selecting FB_IOMEM_HELPERS if DRM_FBDEV_EMULATION is set as
other drm drivers.
Fixes: 44e694958b95 ("drm/xe/display: Implement display support")
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250323114103.1960511-1-yuehaibing@huawei.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit 689582882802cd64986c1eb584c9f5184d67f0cf)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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Commit d40f275d96e8 ("drm/xe: Move survivability entirely to xe_pci")
tried to follow the logic: initialize everything needed and if
everything succeeds, set the flag that it's enabled. While it fixed some
corner cases of those calls failing, it was wrong for setting the flag
after the call to xe_heci_gsc_init(): that function does a different
initialization for survivability mode.
Fix that and add comments about this being done on purpose.
Suggested-by: Riana Tauro <riana.tauro@intel.com>
Fixes: d40f275d96e8 ("drm/xe: Move survivability entirely to xe_pci")
Reviewed-by: Riana Tauro <riana.tauro@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250314-fix-survivability-v5-2-fdb3559ea965@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit 14efa739ca70514e8b923a02b5bcb42511dd1ee8)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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Commit d40f275d96e8 ("drm/xe: Move survivability entirely to xe_pci")
moved the survivability handling to be done entirely in the xe_pci
layer. However there are some issues with that approach:
1) Survivability mode needs at least the mmio initialized, otherwise it
can't really read a register to decide if it should enter that state
2) SR-IOV mode should be initialized, otherwise it's not possible to
check if it's VF
Besides, as pointed by Riana the check for
xe_survivability_mode_enable() was wrong in xe_pci_probe() since it's
not a bool return.
Fix that by moving the initialization to be entirely in the xe_device
layer, with the correct dependencies handled: only after mmio and sriov
initialization, and not triggering it on error from
wait_for_lmem_ready(). This restores the trigger behavior before that
commit. The xe_pci layer now only checks for "is it enabled?",
like it's doing in xe_pci_suspend()/xe_pci_remove(), etc.
Cc: Riana Tauro <riana.tauro@intel.com>
Fixes: d40f275d96e8 ("drm/xe: Move survivability entirely to xe_pci")
Reviewed-by: Riana Tauro <riana.tauro@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250314-fix-survivability-v5-1-fdb3559ea965@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit 86b5e0dbba07438de91dd81095464c6c4aa7a372)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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The WA requires KMD to disable DOP clock gating during a semaphore
wait and also ensure that idle delay for every CS is lower than the
idle wait time in the PWRCTX_MAXCNT register. Default values for these
registers already comply with this restriction.
v2: Store timestamp_base in gt info and other comments (Daniele)
v3: Skip WA check for VF
v4: Review comments (Matt Roper)
v5: Cleanup the clock functions and use reg_field_get (Matt Roper)
v6: Fix checkpatch issue
v7: Fix CI issue
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250320175123.3026754-1-vinay.belgaumkar@intel.com
(cherry picked from commit 7c53ff050ba88bb37eed3e17f2bb8ec592d83302)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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Starting from commit 18778b5fdd01 ("drm/xe: Eliminate usage of
TIMESTAMP_OVERRIDE") we access the CTC_MODE register only to warn
if it has undocumented value. There is no point in doing that on
the VF driver. While here, move this check to a helper function.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250311114042.1954-2-michal.wajdeczko@intel.com
(cherry picked from commit fce3fb7b914bcd19341de8d8eff8bef371c2cddf)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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If devm_add_action_or_reset() isn't successful, xe_eu_stall_fini()
is invoked. So, unsuccessful return from devm_add_action_or_reset()
shouldn't dereference gt->eu_stall as xe_eu_stall_fini() already
frees it. Fix this issue.
Fixes: 9a0b11d4cf3b ("drm/xe/eustall: Add support to init, enable and disable EU stall sampling")
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/eae49a414a7314921108e0388810aaee6261ad92.1741800396.git.harish.chegondi@intel.com
(cherry picked from commit 278469ff569e1082d56b4a7af26fbaecef9fbf3b)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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https://gitlab.freedesktop.org/drm/i915/kernel into drm-next
drm/i915 fixes for v6.15 merge window:
- Bounds check for scalers in DSC prefill latency computation
- Fix build by adding a missing include
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://lore.kernel.org/r/878qota36x.fsf@intel.com
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In file included from <command-line>:
./drivers/gpu/drm/i915/display/intel_fbdev.h: In function ‘intel_fbdev_framebuffer’:
./drivers/gpu/drm/i915/display/intel_fbdev.h:32:16: error: ‘NULL’ undeclared (first use in this function)
32 | return NULL;
| ^~~~
./drivers/gpu/drm/i915/display/intel_fbdev.h:1:1: note: ‘NULL’ is defined in header ‘<stddef.h>’; did you forget to ‘#include <stddef.h>’?
+++ |+#include <stddef.h>
1 | /* SPDX-License-Identifier: MIT */
./drivers/gpu/drm/i915/display/intel_fbdev.h:32:16: note: each undeclared identifier is reported only once for each function it appears in
32 | return NULL;
| ^~~~
Build fails if CONFIG_DRM_FBDEV_EMULATION is n, add missing header file.
Fixes: 9fa154f40eb6 ("drm/{i915,xe}: Run DRM default client setup")
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250315120143.2344958-1-yuehaibing@huawei.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
(cherry picked from commit 97e81f78d3cbf061a809bbb8180a5b96395b8e03)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Currently, during the computation of global watermarks, the latency for
each scaler user is calculated to compute the DSC prefill latency.
At this point, the number of scaler users can exceed the number of
supported scalers, which is checked later in intel_atomic_setup_scalers().
This can cause issues when the number of scaler users exceeds the number
of supported scalers.
While checking for DSC prefill, ensure that the number of scaler users does
not exceed the number of supported scalers.
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/4341
Fixes: a9b14af999b0 ("drm/i915/dsc: Check if vblank is sufficient for dsc prefill")
Cc: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250227034106.1638203-1-ankit.k.nautiyal@intel.com
(cherry picked from commit 5d6c69b712f9cb34063ef32168ce6a12af8acf0c)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
Short summary of fixes pull:
adp:
- Fix error handling in plane setup
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250327141835.GA96037@linux.fritz.box
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The __drmm_universal_plane_alloc() function doesn't return NULL, it
returns error pointers. Update the check to match.
Fixes: 332122eba628 ("drm: adp: Add Apple Display Pipe driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Sasha Finkelstein <fnkl.kernel@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/14a845e8-54d0-45f8-b8b9-927609d92ede@stanley.mountain
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
- Fix a performance regression on AMD iGPU and dGPU drivers, related to
the unintended activation of DMA bounce buffers that regressed game
performance if KASLR disturbed things just enough
- Fix a copy_user_generic() performance regression on certain older
non-FSRM/ERMS CPUs
- Fix a Clang build warning due to a semantic merge conflict the Kunit
tree generated with the x86 tree
- Fix FRED related system hang during S4 resume
- Remove an unused API
* tag 'x86-urgent-2025-04-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/fred: Fix system hang during S4 resume with FRED enabled
x86/platform/iosf_mbi: Remove unused iosf_mbi_unregister_pmic_bus_access_notifier()
x86/mm/init: Handle the special case of device private pages in add_pages(), to not increase max_pfn and trigger dma_addressing_limited() bounce buffers
x86/tools: Drop duplicate unlikely() definition in insn_decoder_test.c
x86/uaccess: Improve performance by aligning writes to 8 bytes in copy_user_generic(), on non-FSRM/ERMS CPUs
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iosf_mbi_unregister_pmic_bus_access_notifier()
The last use of iosf_mbi_unregister_pmic_bus_access_notifier() was
removed in 2017 by:
a5266db4d314 ("drm/i915: Acquire PUNIT->PMIC bus for intel_uncore_forcewake_reset()")
Remove it.
(Note that the '_unlocked' version is still used.)
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Tvrtko Ursulin <tursulin@ursulin.net>
Cc: David Airlie <airlied@gmail.com>
Cc: Simona Vetter <simona@ffwll.ch>
Cc: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Link: https://lore.kernel.org/r/20241225175010.91783-1-linux@treblig.org
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fixes from Ingo Molnar:
"These are objtool fixes and updates by Josh Poimboeuf, centered around
the fallout from the new CONFIG_OBJTOOL_WERROR=y feature, which,
despite its default-off nature, increased the profile/impact of
objtool warnings:
- Improve error handling and the presentation of warnings/errors
- Revert the new summary warning line that some test-bot tools
interpreted as new regressions
- Fix a number of objtool warnings in various drivers, core kernel
code and architecture code. About half of them are potential
problems related to out-of-bounds accesses or potential undefined
behavior, the other half are additional objtool annotations
- Update objtool to latest (known) compiler quirks and objtool bugs
triggered by compiler code generation
- Misc fixes"
* tag 'objtool-urgent-2025-04-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
objtool/loongarch: Add unwind hints in prepare_frametrace()
rcu-tasks: Always inline rcu_irq_work_resched()
context_tracking: Always inline ct_{nmi,irq}_{enter,exit}()
sched/smt: Always inline sched_smt_active()
objtool: Fix verbose disassembly if CROSS_COMPILE isn't set
objtool: Change "warning:" to "error: " for fatal errors
objtool: Always fail on fatal errors
Revert "objtool: Increase per-function WARN_FUNC() rate limit"
objtool: Append "()" to function name in "unexpected end of section" warning
objtool: Ignore end-of-section jumps for KCOV/GCOV
objtool: Silence more KCOV warnings, part 2
objtool, drm/vmwgfx: Don't ignore vmw_send_msg() for ORC
objtool: Fix STACK_FRAME_NON_STANDARD for cold subfunctions
objtool: Fix segfault in ignore_unreachable_insn()
objtool: Fix NULL printf() '%s' argument in builtin-check.c:save_argv()
objtool, lkdtm: Obfuscate the do_nothing() pointer
objtool, regulator: rk808: Remove potential undefined behavior in rk806_set_mode_dcdc()
objtool, ASoC: codecs: wcd934x: Remove potential undefined behavior in wcd934x_slim_irq_handler()
objtool, Input: cyapa - Remove undefined behavior in cyapa_update_fw_store()
objtool, panic: Disable SMAP in __stack_chk_fail()
...
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The following commit:
0b0d81e3b733 ("objtool, drm/vmwgfx: Fix "duplicate frame pointer save" warning")
... marked vmw_send_msg() STACK_FRAME_NON_STANDARD because it uses RBP
in a non-standard way which violates frame pointer convention.
That issue only affects the frame pointer unwinder. Remove the
annotation for ORC.
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/eff3102a7eeb77b4420fcb5e9d9cd9dd81d4514a.1743136205.git.jpoimboe@kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updatesk from Greg KH:
"Here is the big set of driver core updates for 6.15-rc1. Lots of stuff
happened this development cycle, including:
- kernfs scaling changes to make it even faster thanks to rcu
- bin_attribute constify work in many subsystems
- faux bus minor tweaks for the rust bindings
- rust binding updates for driver core, pci, and platform busses,
making more functionaliy available to rust drivers. These are all
due to people actually trying to use the bindings that were in
6.14.
- make Rafael and Danilo full co-maintainers of the driver core
codebase
- other minor fixes and updates"
* tag 'driver-core-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (52 commits)
rust: platform: require Send for Driver trait implementers
rust: pci: require Send for Driver trait implementers
rust: platform: impl Send + Sync for platform::Device
rust: pci: impl Send + Sync for pci::Device
rust: platform: fix unrestricted &mut platform::Device
rust: pci: fix unrestricted &mut pci::Device
rust: device: implement device context marker
rust: pci: use to_result() in enable_device_mem()
MAINTAINERS: driver core: mark Rafael and Danilo as co-maintainers
rust/kernel/faux: mark Registration methods inline
driver core: faux: only create the device if probe() succeeds
rust/faux: Add missing parent argument to Registration::new()
rust/faux: Drop #[repr(transparent)] from faux::Registration
rust: io: fix devres test with new io accessor functions
rust: io: rename `io::Io` accessors
kernfs: Move dput() outside of the RCU section.
efi: rci2: mark bin_attribute as __ro_after_init
rapidio: constify 'struct bin_attribute'
firmware: qemu_fw_cfg: constify 'struct bin_attribute'
powerpc/perf/hv-24x7: Constify 'struct bin_attribute'
...
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We need the driver core fix in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The sysfs core now allows instances of 'struct bin_attribute' to be
moved into read-only memory. Make use of that to protect them against
accidental or malicious modifications.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Link: https://lore.kernel.org/r/20241216-sysfs-const-bin_attr-drm-v1-5-210f2b36b9bf@weissschuh.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The sysfs core now allows instances of 'struct bin_attribute' to be
moved into read-only memory. Make use of that to protect them against
accidental or malicious modifications.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://lore.kernel.org/r/20241216-sysfs-const-bin_attr-drm-v1-4-210f2b36b9bf@weissschuh.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The sysfs core now allows instances of 'struct bin_attribute' to be
moved into read-only memory. Make use of that to protect them against
accidental or malicious modifications.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://lore.kernel.org/r/20241216-sysfs-const-bin_attr-drm-v1-3-210f2b36b9bf@weissschuh.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The sysfs core now allows instances of 'struct bin_attribute' to be
moved into read-only memory. Make use of that to protect them against
accidental or malicious modifications.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://lore.kernel.org/r/20241216-sysfs-const-bin_attr-drm-v1-2-210f2b36b9bf@weissschuh.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The sysfs core now allows instances of 'struct bin_attribute' to be
moved into read-only memory. Make use of that to protect them against
accidental or malicious modifications.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://lore.kernel.org/r/20241216-sysfs-const-bin_attr-drm-v1-1-210f2b36b9bf@weissschuh.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- The series "Enable strict percpu address space checks" from Uros
Bizjak uses x86 named address space qualifiers to provide
compile-time checking of percpu area accesses.
This has caused a small amount of fallout - two or three issues were
reported. In all cases the calling code was found to be incorrect.
- The series "Some cleanup for memcg" from Chen Ridong implements some
relatively monir cleanups for the memcontrol code.
- The series "mm: fixes for device-exclusive entries (hmm)" from David
Hildenbrand fixes a boatload of issues which David found then using
device-exclusive PTE entries when THP is enabled. More work is
needed, but this makes thins better - our own HMM selftests now
succeed.
- The series "mm: zswap: remove z3fold and zbud" from Yosry Ahmed
remove the z3fold and zbud implementations. They have been deprecated
for half a year and nobody has complained.
- The series "mm: further simplify VMA merge operation" from Lorenzo
Stoakes implements numerous simplifications in this area. No runtime
effects are anticipated.
- The series "mm/madvise: remove redundant mmap_lock operations from
process_madvise()" from SeongJae Park rationalizes the locking in the
madvise() implementation. Performance gains of 20-25% were observed
in one MADV_DONTNEED microbenchmark.
- The series "Tiny cleanup and improvements about SWAP code" from
Baoquan He contains a number of touchups to issues which Baoquan
noticed when working on the swap code.
- The series "mm: kmemleak: Usability improvements" from Catalin
Marinas implements a couple of improvements to the kmemleak
user-visible output.
- The series "mm/damon/paddr: fix large folios access and schemes
handling" from Usama Arif provides a couple of fixes for DAMON's
handling of large folios.
- The series "mm/damon/core: fix wrong and/or useless damos_walk()
behaviors" from SeongJae Park fixes a few issues with the accuracy of
kdamond's walking of DAMON regions.
- The series "expose mapping wrprotect, fix fb_defio use" from Lorenzo
Stoakes changes the interaction between framebuffer deferred-io and
core MM. No functional changes are anticipated - this is preparatory
work for the future removal of page structure fields.
- The series "mm/damon: add support for hugepage_size DAMOS filter"
from Usama Arif adds a DAMOS filter which permits the filtering by
huge page sizes.
- The series "mm: permit guard regions for file-backed/shmem mappings"
from Lorenzo Stoakes extends the guard region feature from its
present "anon mappings only" state. The feature now covers shmem and
file-backed mappings.
- The series "mm: batched unmap lazyfree large folios during
reclamation" from Barry Song cleans up and speeds up the unmapping
for pte-mapped large folios.
- The series "reimplement per-vma lock as a refcount" from Suren
Baghdasaryan puts the vm_lock back into the vma. Our reasons for
pulling it out were largely bogus and that change made the code more
messy. This patchset provides small (0-10%) improvements on one
microbenchmark.
- The series "Docs/mm/damon: misc DAMOS filters documentation fixes and
improves" from SeongJae Park does some maintenance work on the DAMON
docs.
- The series "hugetlb/CMA improvements for large systems" from Frank
van der Linden addresses a pile of issues which have been observed
when using CMA on large machines.
- The series "mm/damon: introduce DAMOS filter type for unmapped pages"
from SeongJae Park enables users of DMAON/DAMOS to filter my the
page's mapped/unmapped status.
- The series "zsmalloc/zram: there be preemption" from Sergey
Senozhatsky teaches zram to run its compression and decompression
operations preemptibly.
- The series "selftests/mm: Some cleanups from trying to run them" from
Brendan Jackman fixes a pile of unrelated issues which Brendan
encountered while runnimg our selftests.
- The series "fs/proc/task_mmu: add guard region bit to pagemap" from
Lorenzo Stoakes permits userspace to use /proc/pid/pagemap to
determine whether a particular page is a guard page.
- The series "mm, swap: remove swap slot cache" from Kairui Song
removes the swap slot cache from the allocation path - it simply
wasn't being effective.
- The series "mm: cleanups for device-exclusive entries (hmm)" from
David Hildenbrand implements a number of unrelated cleanups in this
code.
- The series "mm: Rework generic PTDUMP configs" from Anshuman Khandual
implements a number of preparatoty cleanups to the GENERIC_PTDUMP
Kconfig logic.
- The series "mm/damon: auto-tune aggregation interval" from SeongJae
Park implements a feedback-driven automatic tuning feature for
DAMON's aggregation interval tuning.
- The series "Fix lazy mmu mode" from Ryan Roberts fixes some issues in
powerpc, sparc and x86 lazy MMU implementations. Ryan did this in
preparation for implementing lazy mmu mode for arm64 to optimize
vmalloc.
- The series "mm/page_alloc: Some clarifications for migratetype
fallback" from Brendan Jackman reworks some commentary to make the
code easier to follow.
- The series "page_counter cleanup and size reduction" from Shakeel
Butt cleans up the page_counter code and fixes a size increase which
we accidentally added late last year.
- The series "Add a command line option that enables control of how
many threads should be used to allocate huge pages" from Thomas
Prescher does that. It allows the careful operator to significantly
reduce boot time by tuning the parallalization of huge page
initialization.
- The series "Fix calculations in trace_balance_dirty_pages() for cgwb"
from Tang Yizhou fixes the tracing output from the dirty page
balancing code.
- The series "mm/damon: make allow filters after reject filters useful
and intuitive" from SeongJae Park improves the handling of allow and
reject filters. Behaviour is made more consistent and the documention
is updated accordingly.
- The series "Switch zswap to object read/write APIs" from Yosry Ahmed
updates zswap to the new object read/write APIs and thus permits the
removal of some legacy code from zpool and zsmalloc.
- The series "Some trivial cleanups for shmem" from Baolin Wang does as
it claims.
- The series "fs/dax: Fix ZONE_DEVICE page reference counts" from
Alistair Popple regularizes the weird ZONE_DEVICE page refcount
handling in DAX, permittig the removal of a number of special-case
checks.
- The series "refactor mremap and fix bug" from Lorenzo Stoakes is a
preparatoty refactoring and cleanup of the mremap() code.
- The series "mm: MM owner tracking for large folios (!hugetlb) +
CONFIG_NO_PAGE_MAPCOUNT" from David Hildenbrand reworks the manner in
which we determine whether a large folio is known to be mapped
exclusively into a single MM.
- The series "mm/damon: add sysfs dirs for managing DAMOS filters based
on handling layers" from SeongJae Park adds a couple of new sysfs
directories to ease the management of DAMON/DAMOS filters.
- The series "arch, mm: reduce code duplication in mem_init()" from
Mike Rapoport consolidates many per-arch implementations of
mem_init() into code generic code, where that is practical.
- The series "mm/damon/sysfs: commit parameters online via
damon_call()" from SeongJae Park continues the cleaning up of sysfs
access to DAMON internal data.
- The series "mm: page_ext: Introduce new iteration API" from Luiz
Capitulino reworks the page_ext initialization to fix a boot-time
crash which was observed with an unusual combination of compile and
cmdline options.
- The series "Buddy allocator like (or non-uniform) folio split" from
Zi Yan reworks the code to split a folio into smaller folios. The
main benefit is lessened memory consumption: fewer post-split folios
are generated.
- The series "Minimize xa_node allocation during xarry split" from Zi
Yan reduces the number of xarray xa_nodes which are generated during
an xarray split.
- The series "drivers/base/memory: Two cleanups" from Gavin Shan
performs some maintenance work on the drivers/base/memory code.
- The series "Add tracepoints for lowmem reserves, watermarks and
totalreserve_pages" from Martin Liu adds some more tracepoints to the
page allocator code.
- The series "mm/madvise: cleanup requests validations and
classifications" from SeongJae Park cleans up some warts which
SeongJae observed during his earlier madvise work.
- The series "mm/hwpoison: Fix regressions in memory failure handling"
from Shuai Xue addresses two quite serious regressions which Shuai
has observed in the memory-failure implementation.
- The series "mm: reliable huge page allocator" from Johannes Weiner
makes huge page allocations cheaper and more reliable by reducing
fragmentation.
- The series "Minor memcg cleanups & prep for memdescs" from Matthew
Wilcox is preparatory work for the future implementation of memdescs.
- The series "track memory used by balloon drivers" from Nico Pache
introduces a way to track memory used by our various balloon drivers.
- The series "mm/damon: introduce DAMOS filter type for active pages"
from Nhat Pham permits users to filter for active/inactive pages,
separately for file and anon pages.
- The series "Adding Proactive Memory Reclaim Statistics" from Hao Jia
separates the proactive reclaim statistics from the direct reclaim
statistics.
- The series "mm/vmscan: don't try to reclaim hwpoison folio" from
Jinjiang Tu fixes our handling of hwpoisoned pages within the reclaim
code.
* tag 'mm-stable-2025-03-30-16-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (431 commits)
mm/page_alloc: remove unnecessary __maybe_unused in order_to_pindex()
x86/mm: restore early initialization of high_memory for 32-bits
mm/vmscan: don't try to reclaim hwpoison folio
mm/hwpoison: introduce folio_contain_hwpoisoned_page() helper
cgroup: docs: add pswpin and pswpout items in cgroup v2 doc
mm: vmscan: split proactive reclaim statistics from direct reclaim statistics
selftests/mm: speed up split_huge_page_test
selftests/mm: uffd-unit-tests support for hugepages > 2M
docs/mm/damon/design: document active DAMOS filter type
mm/damon: implement a new DAMOS filter type for active pages
fs/dax: don't disassociate zero page entries
MM documentation: add "Unaccepted" meminfo entry
selftests/mm: add commentary about 9pfs bugs
fork: use __vmalloc_node() for stack allocation
docs/mm: Physical Memory: Populate the "Zones" section
xen: balloon: update the NR_BALLOON_PAGES state
hv_balloon: update the NR_BALLOON_PAGES state
balloon_compaction: update the NR_BALLOON_PAGES state
meminfo: add a per node counter for balloon drivers
mm: remove references to folio in __memcg_kmem_uncharge_page()
...
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Zone device pages are used to represent various type of device memory
managed by device drivers. Currently compound zone device pages are not
supported. This is because MEMORY_DEVICE_FS_DAX pages are the only user
of higher order zone device pages and have their own page reference
counting.
A future change will unify FS DAX reference counting with normal page
reference counting rules and remove the special FS DAX reference counting.
Supporting that requires compound zone device pages.
Supporting compound zone device pages requires compound_head() to
distinguish between head and tail pages whilst still preserving the
special struct page fields that are specific to zone device pages.
A tail page is distinguished by having bit zero being set in
page->compound_head, with the remaining bits pointing to the head page.
For zone device pages page->compound_head is shared with page->pgmap.
The page->pgmap field must be common to all pages within a folio, even if
the folio spans memory sections. Therefore pgmap is the same for both
head and tail pages and can be moved into the folio and we can use the
standard scheme to find compound_head from a tail page.
Link: https://lkml.kernel.org/r/67055d772e6102accf85161d0b57b0b3944292bf.1740713401.git-series.apopple@nvidia.com
Signed-off-by: Alistair Popple <apopple@nvidia.com>
Signed-off-by: Balbir Singh <balbirs@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: David Hildenbrand <david@redhat.com>
Tested-by: Alison Schofield <alison.schofield@intel.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Asahi Lina <lina@asahilina.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Chunyan Zhang <zhang.lyra@gmail.com>
Cc: "Darrick J. Wong" <djwong@kernel.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: linmiaohe <linmiaohe@huawei.com>
Cc: Logan Gunthorpe <logang@deltatee.com>
Cc: Matthew Wilcow (Oracle) <willy@infradead.org>
Cc: Michael "Camp Drill Sergeant" Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Ted Ts'o <tytso@mit.edu>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: WANG Xuerui <kernel@xen0n.name>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The single "real" user in the tree of make_device_exclusive_range() always
requests making only a single address exclusive. The current
implementation is hard to fix for properly supporting anonymous THP /
large folios and for avoiding messing with rmap walks in weird ways.
So let's always process a single address/page and return folio + page to
minimize page -> folio lookups. This is a preparation for further
changes.
Reject any non-anonymous or hugetlb folios early, directly after GUP.
While at it, extend the documentation of make_device_exclusive() to
clarify some things.
Link: https://lkml.kernel.org/r/20250210193801.781278-4-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Simona Vetter <simona.vetter@ffwll.ch>
Reviewed-by: Alistair Popple <apopple@nvidia.com>
Tested-by: Alistair Popple <apopple@nvidia.com>
Cc: Alex Shi <alexs@kernel.org>
Cc: Danilo Krummrich <dakr@kernel.org>
Cc: Dave Airlie <airlied@gmail.com>
Cc: Jann Horn <jannh@google.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Karol Herbst <kherbst@redhat.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Lyude <lyude@redhat.com>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: SeongJae Park <sj@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Yanteng Si <si.yanteng@linux.dev>
Cc: Barry Song <v-songbaohua@oppo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull Rust updates from Miguel Ojeda:
"Toolchain and infrastructure:
- Extract the 'pin-init' API from the 'kernel' crate and make it into
a standalone crate.
In order to do this, the contents are rearranged so that they can
easily be kept in sync with the version maintained out-of-tree that
other projects have started to use too (or plan to, like QEMU).
This will reduce the maintenance burden for Benno, who will now
have his own sub-tree, and will simplify future expected changes
like the move to use 'syn' to simplify the implementation.
- Add '#[test]'-like support based on KUnit.
We already had doctests support based on KUnit, which takes the
examples in our Rust documentation and runs them under KUnit.
Now, we are adding the beginning of the support for "normal" tests,
similar to those the '#[test]' tests in userspace Rust. For
instance:
#[kunit_tests(my_suite)]
mod tests {
#[test]
fn my_test() {
assert_eq!(1 + 1, 2);
}
}
Unlike with doctests, the 'assert*!'s do not map to the KUnit
assertion APIs yet.
- Check Rust signatures at compile time for functions called from C
by name.
In particular, introduce a new '#[export]' macro that can be placed
in the Rust function definition. It will ensure that the function
declaration on the C side matches the signature on the Rust
function:
#[export]
pub unsafe extern "C" fn my_function(a: u8, b: i32) -> usize {
// ...
}
The macro essentially forces the compiler to compare the types of
the actual Rust function and the 'bindgen'-processed C signature.
These cases are rare so far. In the future, we may consider
introducing another tool, 'cbindgen', to generate C headers
automatically. Even then, having these functions explicitly marked
may be a good idea anyway.
- Enable the 'raw_ref_op' Rust feature: it is already stable, and
allows us to use the new '&raw' syntax, avoiding a couple macros.
After everyone has migrated, we will disallow the macros.
- Pass the correct target to 'bindgen' on Usermode Linux.
- Fix 'rusttest' build in macOS.
'kernel' crate:
- New 'hrtimer' module: add support for setting up intrusive timers
without allocating when starting the timer. Add support for
'Pin<Box<_>>', 'Arc<_>', 'Pin<&_>' and 'Pin<&mut _>' as pointer
types for use with timer callbacks. Add support for setting clock
source and timer mode.
- New 'dma' module: add a simple DMA coherent allocator abstraction
and a test sample driver.
- 'list' module: make the linked list 'Cursor' point between
elements, rather than at an element, which is more convenient to us
and allows for cursors to empty lists; and document it with
examples of how to perform common operations with the provided
methods.
- 'str' module: implement a few traits for 'BStr' as well as the
'strip_prefix()' method.
- 'sync' module: add 'Arc::as_ptr'.
- 'alloc' module: add 'Box::into_pin'.
- 'error' module: extend the 'Result' documentation, including a few
examples on different ways of handling errors, a warning about
using methods that may panic, and links to external documentation.
'macros' crate:
- 'module' macro: add the 'authors' key to support multiple authors.
The original key will be kept until everyone has migrated.
Documentation:
- Add error handling sections.
MAINTAINERS:
- Add Danilo Krummrich as reviewer of the Rust "subsystem".
- Add 'RUST [PIN-INIT]' entry with Benno Lossin as maintainer. It has
its own sub-tree.
- Add sub-tree for 'RUST [ALLOC]'.
- Add 'DMA MAPPING HELPERS DEVICE DRIVER API [RUST]' entry with
Abdiel Janulgue as primary maintainer. It will go through the
sub-tree of the 'RUST [ALLOC]' entry.
- Add 'HIGH-RESOLUTION TIMERS [RUST]' entry with Andreas Hindborg as
maintainer. It has its own sub-tree.
And a few other cleanups and improvements"
* tag 'rust-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: (71 commits)
rust: dma: add `Send` implementation for `CoherentAllocation`
rust: macros: fix `make rusttest` build on macOS
rust: block: refactor to use `&raw mut`
rust: enable `raw_ref_op` feature
rust: uaccess: name the correct function
rust: rbtree: fix comments referring to Box instead of KBox
rust: hrtimer: add maintainer entry
rust: hrtimer: add clocksource selection through `ClockId`
rust: hrtimer: add `HrTimerMode`
rust: hrtimer: implement `HrTimerPointer` for `Pin<Box<T>>`
rust: alloc: add `Box::into_pin`
rust: hrtimer: implement `UnsafeHrTimerPointer` for `Pin<&mut T>`
rust: hrtimer: implement `UnsafeHrTimerPointer` for `Pin<&T>`
rust: hrtimer: add `hrtimer::ScopedHrTimerPointer`
rust: hrtimer: add `UnsafeHrTimerPointer`
rust: hrtimer: allow timer restart from timer handler
rust: str: implement `strip_prefix` for `BStr`
rust: str: implement `AsRef<BStr>` for `[u8]` and `BStr`
rust: str: implement `Index` for `BStr`
rust: str: implement `PartialEq` for `BStr`
...
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This validates at compile time that the signatures match what is in the
header file. It highlights one annoyance with the compile-time check,
which is that it can only be used with functions marked unsafe.
If the function is not unsafe, then this error is emitted:
error[E0308]: `if` and `else` have incompatible types
--> <linux>/drivers/gpu/drm/drm_panic_qr.rs:987:19
|
986 | #[export]
| --------- expected because of this
987 | pub extern "C" fn drm_panic_qr_max_data_size(version: u8, url_len: usize) -> usize {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ expected unsafe fn, found safe fn
|
= note: expected fn item `unsafe extern "C" fn(_, _) -> _ {kernel::bindings::drm_panic_qr_max_data_size}`
found fn item `extern "C" fn(_, _) -> _ {drm_panic_qr_max_data_size}`
The signature declarations are moved to a header file so it can be
included in the Rust bindings helper, and the extern keyword is removed
as it is unnecessary.
Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org>
Reviewed-by: Tamir Duberstein <tamird@gmail.com>
Acked-by: Simona Vetter <simona.vetter@ffwll.ch>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250303-export-macro-v3-5-41fbad85a27f@google.com
[ Fixed `rustfmt`. Moved on top the unsafe requirement comment to follow
the usual style, and slightly reworded it for clarity. Formatted
bindings helper comment. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
|
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Pull drm updates from Dave Airlie:
"Outside of drm there are some rust patches from Danilo who maintains
that area in here, and some pieces for drm header check tests.
The major things in here are a new driver supporting the touchbar
displays on M1/M2, the nova-core stub driver which is just the vehicle
for adding rust abstractions and start developing a real driver inside
of.
xe adds support for SVM with a non-driver specific SVM core
abstraction that will hopefully be useful for other drivers, along
with support for shrinking for TTM devices. I'm sure xe and AMD
support new devices, but the pipeline depth on these things is hard to
know what they end up being in the marketplace!
uapi:
- add mediatek tiled fourcc
- add support for notifying userspace on device wedged
new driver:
- appletbdrm: support for Apple Touchbar displays on m1/m2
- nova-core: skeleton rust driver to develop nova inside off
firmware:
- add some rust firmware pieces
rust:
- add 'LocalModule' type alias
component:
- add helper to query bound status
fbdev:
- fbtft: remove access to page->index
media:
- cec: tda998x: import driver from drm
dma-buf:
- add fast path for single fence merging
tests:
- fix lockdep warnings
atomic:
- allow full modeset on connector changes
- clarify semantics of allow_modeset and drm_atomic_helper_check
- async-flip: support on arbitary planes
- writeback: fix UAF
- Document atomic-state history
format-helper:
- support ARGB8888 to ARGB4444 conversions
buddy:
- fix multi-root cleanup
ci:
- update IGT
dp:
- support extended wake timeout
- mst: fix RAD to string conversion
- increase DPCD eDP control CAP size to 5 bytes
- add DPCD eDP v1.5 definition
- add helpers for LTTPR transparent mode
panic:
- encode QR code according to Fido 2.2
scheduler:
- add parameter struct for init
- improve job peek/pop operations
- optimise drm_sched_job struct layout
ttm:
- refactor pool allocation
- add helpers for TTM shrinker
panel-orientation:
- add a bunch of new quirks
panel:
- convert panels to multi-style functions
- edp: Add support for B140UAN04.4, BOE NV140FHM-NZ, CSW MNB601LS1-3,
LG LP079QX1-SP0V, MNE007QS3-7, STA 116QHD024002, Starry
116KHD024006, Lenovo T14s Gen6 Snapdragon
- himax-hx83102: Add support for CSOT PNA957QT1-1, Kingdisplay
kd110n11-51ie, Starry 2082109qfh040022-50e
- visionox-r66451: use multi-style MIPI-DSI functions
- raydium-rm67200: Add driver for Raydium RM67200
- simple: Add support for BOE AV123Z7M-N17, BOE AV123Z7M-N17
- sony-td4353-jdi: Use MIPI-DSI multi-func interface
- summit: Add driver for Apple Summit display panel
- visionox-rm692e5: Add driver for Visionox RM692E5
bridge:
- pass full atomic state to various callbacks
- adv7511: Report correct capabilities
- it6505: Fix HDCP V compare
- snd65dsi86: fix device IDs
- nwl-dsi: set bridge type
- ti-sn65si83: add error recovery and set bridge type
- synopsys: add HDMI audio support
xe:
- support device-wedged event
- add mmap support for PCI memory barrier
- perf pmu integration and expose per-engien activity
- add EU stall sampling support
- GPU SVM and Xe SVM implementation
- use TTM shrinker
- add survivability mode to allow the driver to do firmware updates
in critical failure states
- PXP HWDRM support for MTL and LNL
- expose package/vram temps over hwmon
- enable DP tunneling
- drop mmio_ext abstraction
- Reject BO evcition if BO is bound to current VM
- Xe suballocator improvements
- re-use display vmas when possible
- add GuC Buffer Cache abstraction
- PCI ID update for Panther Lake and Battlemage
- Enable SRIOV for Panther Lake
- Refactor VRAM manager location
i915:
- enable extends wake timeout
- support device-wedged event
- Enable DP 128b/132b SST DSC
- FBC dirty rectangle support for display version 30+
- convert i915/xe to drm client setup
- Compute HDMI PLLS for rates not in fixed tables
- Allow DSB usage when PSR is enabled on LNL+
- Enable panel replay without full modeset
- Enable async flips with compressed buffers on ICL+
- support luminance based brightness via DPCD for eDP
- enable VRR enable/disable without full modeset
- allow GuC SLPC default strategies on MTL+ for performance
- lots of display refactoring in move to struct intel_display
amdgpu:
- add device wedged event
- support async page flips on overlay planes
- enable broadcast RGB drm property
- add info ioctl for virt mode
- OEM i2c support for RGB lights
- GC 11.5.2 + 11.5.3 support
- SDMA 6.1.3 support
- NBIO 7.9.1 + 7.11.2 support
- MMHUB 1.8.1 + 3.3.2 support
- DCN 3.6.0 support
- Add dynamic workload profile switching for GC 10-12
- support larger VBIOS sizes
- Mark gttsize parameters as deprecated
- Initial JPEG queue resset support
amdkfd:
- add KFD per process flags for setting precision
- sync pasid values between KGD and KFD
- improve GTT/VRAM handling for APUs
- fix user queue validation on GC7/8
- SDMA queue reset support
raedeon:
- rs400 hyperz fix
i2c:
- td998x: drop platform_data, split driver into media and bridge
ast:
- transmitter chip detection refactoring
- vbios display mode refactoring
- astdp: fix connection status and filter unsupported modes
- cursor handling refactoring
imagination:
- check job dependencies with sched helper
ivpu:
- improve command queue handling
- use workqueue for IRQ handling
- add support HW fault injection
- locking fixes
mgag200:
- add support for G200eH5
msm:
- dpu: add concurrent writeback support for DPU 10.x+
- use LTTPR helpers
- GPU:
- Fix obscure GMU suspend failure
- Expose syncobj timeline support
- Extend GPU devcoredump with pagetable info
- a623 support
- Fix a6xx gen1/gen2 indexed-register blocks in gpu snapshot /
devcoredump
- Display:
- Add cpu-cfg interconnect paths on SM8560 and SM8650
- Introduce KMS OMMU fault handler, causing devcoredump snapshot
- Fixed error pointer dereference in msm_kms_init_aspace()
- DPU:
- Fix mode_changing handling
- Add writeback support on SM6150 (QCS615)
- Fix DSC programming in 1:1:1 topology
- Reworked hardware resource allocation, moving it to the CRTC code
- Enabled support for Concurrent WriteBack (CWB) on SM8650
- Enabled CDM blocks on all relevant platforms
- Reworked debugfs interface for BW/clocks debugging
- Clear perf params before calculating bw
- Support YUV formats on writeback
- Fixed double inclusion
- Fixed writeback in YUV formats when using cloned output, Dropped
wb2_formats_rgb
- Corrected dpu_crtc_check_mode_changed and struct dpu_encoder_virt
kerneldocs
- Fixed uninitialized variable in dpu_crtc_kickoff_clone_mode()
- DSI:
- DSC-related fixes
- Rework clock programming
- DSI PHY:
- Fix 7nm (and lower) PHY programming
- Add proper DT schema definitions for DSI PHY clocks
- HDMI:
- Rework the driver, enabling the use of the HDMI Connector
framework
- Bindings:
- Added eDP PHY on SA8775P
nouveau:
- move drm_slave_encoder interface into driver
- nvkm: refactor GSP RPC
- use LTTPR helpers
mediatek:
- HDMI fixup and refinement
- add MT8188 dsc compatible
- MT8365 SoC support
panthor:
- Expose sizes of intenral BOs via fdinfo
- Fix race between reset and suspend
- Improve locking
qaic:
- Add support for AIC200
renesas:
- Fix limits in DT bindings
rockchip:
- support rk3562-mali
- rk3576: Add HDMI support
- vop2: Add new display modes on RK3588 HDMI0 up to 4K
- Don't change HDMI reference clock rate
- Fix DT bindings
- analogix_dp: add eDP support
- fix shutodnw
solomon:
- Set SPI device table to silence warnings
- Fix pixel and scanline encoding
v3d:
- handle clock
vc4:
- Use drm_exec
- Use dma-resv for wait-BO ioctl
- Remove seqno infrastructure
virtgpu:
- Support partial mappings of GEM objects
- Reserve VGA resources during initialization
- Fix UAF in virtgpu_dma_buf_free_obj()
- Add panic support
vkms:
- Switch to a managed modesetting pipeline
- Add support for ARGB8888
- fix UAf
xlnx:
- Set correct DMA segment size
- use mutex guards
- Fix error handling
- Fix docs"
* tag 'drm-next-2025-03-28' of https://gitlab.freedesktop.org/drm/kernel: (1762 commits)
drm/amd/pm: Update feature list for smu_v13_0_6
drm/amdgpu: Add parameter documentation for amdgpu_sync_fence
drm/amdgpu/discovery: optionally use fw based ip discovery
drm/amdgpu/discovery: use specific ip_discovery.bin for legacy asics
drm/amdgpu/discovery: check ip_discovery fw file available
drm/amd/pm: Remove unnecessay UQ10 to UINT conversion
drm/amd/pm: Remove unnecessay UQ10 to UINT conversion
drm/amdgpu/sdma_v4_4_2: update VM flush implementation for SDMA
drm/amdgpu: Optimize VM invalidation engine allocation and synchronize GPU TLB flush
drm/amd/amdgpu: Increase max rings to enable SDMA page ring
drm/amdgpu: Decode deferred error type in gfx aca bank parser
drm/amdgpu/gfx11: Add Cleaner Shader Support for GFX11.5 GPUs
drm/amdgpu/mes: clean up SDMA HQD loop
drm/amdgpu/mes: enable compute pipes across all MEC
drm/amdgpu/mes: drop MES 10.x leftovers
drm/amdgpu/mes: optimize compute loop handling
drm/amdgpu/sdma: guilty tracking is per instance
drm/amdgpu/sdma: fix engine reset handling
drm/amdgpu: remove invalid usage of sched.ready
drm/amdgpu: add cleaner shader trace point
...
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https://gitlab.freedesktop.org/drm/i915/kernel into drm-next
UAPI Changes:
- Increase I915_PARAM_MMAP_GTT_VERSION version to indicate support for partial mmaps (José Roberto de Souza)
Driver Changes:
Fixes/improvements/new stuff:
- Implement vmap/vunmap GEM object functions (Asbjørn Sloth Tønnesen)
Miscellaneous:
- Various register definition cleanups (Ville Syrjälä)
- Fix typo in a comment [gt/uc] (Yuichiro Tsuji)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tursulin@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Z9IXs5CzHHKScuQn@linux
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for partial mmaps
Commit 255fc1703e42 ("drm/i915/gem: Calculate object page offset for partial memory mapping")
was the last patch of several patches fixing multiple partial mmaps.
But without a bump in I915_PARAM_MMAP_GTT_VERSION there is no clean
way for UMD to know if it can do multiple partial mmaps.
Fixes: 255fc1703e42 ("drm/i915/gem: Calculate object page offset for partial memory mapping")
Cc: Andi Shyti <andi.shyti@linux.intel.com>
Cc: Nirmoy Das <nirmoy.das@intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306210827.171147-1-jose.souza@intel.com
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Fix typo in a comment.
explaination -> explanation
Signed-off-by: Yuichiro Tsuji <yuichtsu@amazon.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250224085638.3500-2-yuichtsu@amazon.com
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Implement i915_gem_vmap_object() and i915_gem_vunmap_object(),
based on i915_gem_dmabuf_vmap() and i915_gem_dmabuf_vunmap().
This enables a drm_client to use drm_client_buffer_vmap() and
drm_client_buffer_vunmap() on hardware using the i915 driver.
Tested with a currently out of tree pixelflut drm_client[1] on:
- Lenovo ThinkCentre M720q (CoffeeLake-S GT2 / Intel UHD Graphics 630)
- Dell Wyse N06D - 3030 LT (ValleyView on Intel Celeron N2807 SOC)
[1] XDP->DRM pixelflut: https://labitat.dk/wiki/Pixelflut-XDR
Signed-off-by: Asbjørn Sloth Tønnesen <asbjorn@asbjorn.st>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240629182513.78026-1-asbjorn@asbjorn.st
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We customarily define the bits of a register in big endian
order. Reorder the gen9+ timestamp freq register bits to match.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250211231941.22769-13-ville.syrjala@linux.intel.com
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Convert the gen9+ timestamo frequency related registers to
the modern REG_BIT()/etc. style.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250211231941.22769-12-ville.syrjala@linux.intel.com
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We customarily define the bits of a register in big endian
order. Reorder the BDW+ fuse bits to match.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250211231941.22769-11-ville.syrjala@linux.intel.com
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Convert the BDW+ EU/slice fuse bits to the modern REG_BIT()/etc.
style.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250211231941.22769-10-ville.syrjala@linux.intel.com
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We customarily define the bits of a register in big endian
order. Reorder the CHV fuse bits to match.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250211231941.22769-9-ville.syrjala@linux.intel.com
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