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2024-05-11Merge tag 'drm-misc-fixes-2024-05-10' of ↵Dave Airlie2-40/+32
https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes Short summary of fixes pull: core: - fix connector debugging output meson: - dw-hdmi: power-up fixes - dw-hdmi: add badngap setting for g12 Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20240510072027.GA9131@linux.fritz.box
2024-05-10Merge tag 'amd-drm-fixes-6.9-2024-05-10' of ↵Dave Airlie7-18/+51
https://gitlab.freedesktop.org/agd5f/linux into drm-fixes amd-drm-fixes-6.9-2024-05-10: amdgpu: - DCN 3.5 fix - MST DSC fixes - S0i3 fix - S4 fix - HDP MMIO mapping fix - Fix a regression in visible vram handling amdkfd: - Spatial partition fix Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240510171110.1394940-1-alexander.deucher@amd.com
2024-05-10drm/amdgpu: Fix comparison in amdgpu_res_cpu_visibleMichel Dänzer1-1/+1
It incorrectly claimed a resource isn't CPU visible if it's located at the very end of CPU visible VRAM. Fixes: a6ff969fe9cb ("drm/amdgpu: fix visible VRAM handling during faults") Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3343 Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reported-and-Tested-by: Jeremy Day <jsday@noreason.ca> Signed-off-by: Michel Dänzer <mdaenzer@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> CC: stable@vger.kernel.org
2024-05-10drm/amdkfd: don't allow mapping the MMIO HDP page with large pagesAlex Deucher1-2/+5
We don't get the right offset in that case. The GPU has an unused 4K area of the register BAR space into which you can remap registers. We remap the HDP flush registers into this space to allow userspace (CPU or GPU) to flush the HDP when it updates VRAM. However, on systems with >4K pages, we end up exposing PAGE_SIZE of MMIO space. Fixes: d8e408a82704 ("drm/amdkfd: Expose HDP registers to user space") Reviewed-by: Felix Kuehling <felix.kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2024-05-10Merge tag 'drm-xe-fixes-2024-05-09' of ↵Dave Airlie4-3/+13
https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes - Fix use zero-length element array - Move more from system wq to ordered private wq - Do not ignore return for drmm_mutex_init Signed-off-by: Dave Airlie <airlied@redhat.com> From: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/c3rduifdp5wipkljdpuq4x6uowkc2uyzgdoft4txvp6mgvzjaj@7zw7c6uw4wrf
2024-05-10Merge tag 'drm-intel-fixes-2024-05-08' of ↵Dave Airlie6-130/+19
https://anongit.freedesktop.org/git/drm/drm-intel into drm-fixes - Automate CCS Mode setting during engine resets (Andi) - Fix audio time stamp programming for DP (Chaitanya) - Fix parsing backlight BDB data (Karthikeyan) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/ZjvTVEmQeVKVB2jx@intel.com
2024-05-09drm/xe: Use ordered WQ for G2H handlerMatthew Brost3-1/+8
System work queues are shared, use a dedicated work queue for G2H processing to avoid G2H processing getting block behind system tasks. Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs") Cc: <stable@vger.kernel.org> Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Francois Dugast <francois.dugast@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240506034758.3697397-1-matthew.brost@intel.com (cherry picked from commit 50aec9665e0babd62b9eee4e613d9a1ef8d2b7de) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2024-05-09drm/xe/guc: Check error code when initializing the CT mutexDaniele Ceraolo Spurio1-1/+4
The initialization via drmm_mutex_init can fail, so we need to check the return code and escalate the failure. The mutex initialization has been moved after all the other init steps that can't fail, so we're always guaranteed to have those done and don't have to check in the cleanup code. Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240321195512.274210-1-daniele.ceraolospurio@intel.com (cherry picked from commit b4abeb5545bb3ddcdda3c19067680ad0b2259be4) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2024-05-09drm/xe/ads: Use flexible-arrayLucas De Marchi1-1/+1
Zero-length arrays are deprecated and flexible arrays should be used instead: https://www.kernel.org/doc/html/v6.9-rc7/process/deprecated.html#zero-length-and-one-element-arrays Reported-by: kernel test robot <lkp@intel.com> Reported-by: Julia Lawall <julia.lawall@inria.fr> Closes: https://lore.kernel.org/r/202405051824.AmjAI5Pg-lkp@intel.com/ Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs") Cc: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240506141917.205714-1-lucas.demarchi@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> (cherry picked from commit ee7284230644e21fef0e38fc5bf8f907b6bb7f7c) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2024-05-08Revert "drm/amdkfd: Add partition id field to location_id"Lijo Lazar1-3/+2
This reverts commit c37ce764cd492f044dcdbb39616298f02b0dbc7f. RCCL library is currently not treating spatial partitions differently, hence this change is causing issues. Revert temporarily till RCCL implementation is ready for spatial partitions. Signed-off-by: Lijo Lazar <lijo.lazar@amd.com> Reviewed-by: Jonathan Kim <jonathan.kim@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-08dm/amd/pm: Fix problems with reboot/shutdown for some SMU 13.0.4/13.0.11 usersMario Limonciello1-1/+1
Limit the workaround introduced by commit 31729e8c21ec ("drm/amd/pm: fixes a random hang in S4 for SMU v13.0.4/11") to only run in the s4 path. Cc: Tim Huang <Tim.Huang@amd.com> Fixes: 31729e8c21ec ("drm/amd/pm: fixes a random hang in S4 for SMU v13.0.4/11") Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3351 Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-08drm/amd/display: MST DSC check for older devicesAgustin Gutierrez1-6/+8
[Why] Some older MST hubs do not report DPCD registers according to specification. [How] This change re-applies commit c53655545141 ("drm/amd/display: dsc mst re-compute pbn for changes on hub"). With an additional check for these older MST devices. Reviewed-by: Swapnil Patel <swapnil.patel@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Agustin Gutierrez <agustin.gutierrez@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-08drm/amd/display: Fix idle optimization checks for multi-display and dual eDPNicholas Kazlauskas1-6/+27
[Why] Idle optimizations are blocked if there's more than one eDP connector on the board - blocking S0i3 and IPS2 for static screen. [How] Fix the checks to correctly detect number of active eDP. Also restrict the eDP support to panels that have correct feature support. Cc: Mario Limonciello <mario.limonciello@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Reviewed-by: Charlene Liu <charlene.liu@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-08drm/amd/display: Fix DSC-re-computingAgustin Gutierrez1-5/+13
[Why] This fixes a bug introduced by commit c53655545141 ("drm/amd/display: dsc mst re-compute pbn for changes on hub"). The change caused light-up issues with a second display that required DSC on some MST docks. [How] Use Virtual DPCD for DSC caps in MST case. [Limitations] This change only affects MST DSC devices that follow specifications additional changes are required to check for old MST DSC devices such as ones which do not check for Virtual DPCD registers. Reviewed-by: Swapnil Patel <swapnil.patel@amd.com> Reviewed-by: Hersen Wu <hersenxs.wu@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Agustin Gutierrez <agustin.gutierrez@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-08drm/amd/display: Enable urgent latency adjustments for DCN35Nicholas Susanto1-2/+2
[Why] Underflow occurs when running Netflix in a 4k144 eDP + 4k60 HDMI FRL setup. It is caused by latency varying based on the DCFCLK/FCLK state. [How] Enable urgent latency adjustment and match the reference to existing ASIC that also see increased latency at low FCLK. Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Acked-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Nicholas Susanto <nicholas.susanto@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-07drm/connector: Add \n to message about demoting connector force-probesDouglas Anderson1-1/+1
The debug print clearly lacks a \n at the end. Add it. Fixes: 8f86c82aba8b ("drm/connector: demote connector force-probes for non-master clients") Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com> Reviewed-by: Simon Ser <contact@emersion.fr> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240502153234.1.I2052f01c8d209d9ae9c300b87c6e4f60bd3cc99e@changeid
2024-05-07drm/i915/bios: Fix parsing backlight BDB dataKarthikeyan Ramasubramanian2-20/+4
Starting BDB version 239, hdr_dpcd_refresh_timeout is introduced to backlight BDB data. Commit 700034566d68 ("drm/i915/bios: Define more BDB contents") updated the backlight BDB data accordingly. This broke the parsing of backlight BDB data in VBT for versions 236 - 238 (both inclusive) and hence the backlight controls are not responding on units with the concerned BDB version. backlight_control information has been present in backlight BDB data from at least BDB version 191 onwards, if not before. Hence this patch extracts the backlight_control information for BDB version 191 or newer. Tested on Chromebooks using Jasperlake SoC (reports bdb->version = 236). Tested on Chromebooks using Raptorlake SoC (reports bdb->version = 251). v2: removed checking the block size of the backlight BDB data [vsyrjala: this is completely safe thanks to commit e163cfb4c96d ("drm/i915/bios: Make copies of VBT data blocks")] Fixes: 700034566d68 ("drm/i915/bios: Define more BDB contents") Cc: stable@vger.kernel.org Cc: Jani Nikula <jani.nikula@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Karthikeyan Ramasubramanian <kramasub@chromium.org> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240221180622.v2.1.I0690aa3e96a83a43b3fc33f50395d334b2981826@changeid Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (cherry picked from commit c286f6a973c66c0d993ecab9f7162c790e7064c8) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2024-05-06drm/i915/audio: Fix audio time stamp programming for DPChaitanya Kumar Borah1-105/+8
Intel hardware is capable of programming the Maud/Naud SDPs on its own based on real-time clocks. While doing so, it takes care of any deviations from the theoretical values. Programming the registers explicitly with static values can interfere with this logic. Therefore, let the HW decide the Maud and Naud SDPs on it's own. Cc: stable@vger.kernel.org # v5.17 Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8097 Co-developed-by: Kai Vehmanen <kai.vehmanen@intel.com> Signed-off-by: Kai Vehmanen <kai.vehmanen@intel.com> Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Reviewed-by: Uma Shankar <uma.shankar@intel.com> Signed-off-by: Animesh Manna <animesh.manna@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240430091825.733499-1-chaitanya.kumar.borah@intel.com (cherry picked from commit 8e056b50d92ae7f4d6895d1c97a69a2a953cf97b) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2024-05-06drm/i915/gt: Automate CCS Mode setting during engine resetsAndi Shyti3-5/+7
We missed setting the CCS mode during resume and engine resets. Create a workaround to be added in the engine's workaround list. This workaround sets the XEHP_CCS_MODE value at every reset. The issue can be reproduced by running: $ clpeak --kernel-latency Without resetting the CCS mode, we encounter a fence timeout: Fence expiration time out i915-0000:03:00.0:clpeak[2387]:2! Fixes: 6db31251bb26 ("drm/i915/gt: Enable only one CCS for compute workload") Reported-by: Gnattu OC <gnattuoc@me.com> Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/10895 Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com> Cc: Chris Wilson <chris.p.wilson@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Cc: <stable@vger.kernel.org> # v6.2+ Tested-by: Gnattu OC <gnattuoc@me.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Tested-by: Krzysztof Gibala <krzysztof.gibala@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240426000723.229296-1-andi.shyti@linux.intel.com (cherry picked from commit 4cfca03f76413db115c3cc18f4370debb1b81b2b) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2024-05-06Linux 6.9-rc7v6.9-rc7Linus Torvalds1-1/+1
2024-05-06epoll: be better about file lifetimesLinus Torvalds1-1/+37
epoll can call out to vfs_poll() with a file pointer that may race with the last 'fput()'. That would make f_count go down to zero, and while the ep->mtx locking means that the resulting file pointer tear-down will be blocked until the poll returns, it means that f_count is already dead, and any use of it won't actually get a reference to the file any more: it's dead regardless. Make sure we have a valid ref on the file pointer before we call down to vfs_poll() from the epoll routines. Link: https://lore.kernel.org/lkml/0000000000002d631f0615918f1e@google.com/ Reported-by: syzbot+045b454ab35fd82a35fb@syzkaller.appspotmail.com Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-05-05Merge tag 'edac_urgent_for_v6.9_rc7' of ↵Linus Torvalds1-6/+6
git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras Pull EDAC fixes from Borislav Petkov: - Fix error logging and check user-supplied data when injecting an error in the versal EDAC driver * tag 'edac_urgent_for_v6.9_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras: EDAC/versal: Do not log total error counts EDAC/versal: Check user-supplied data before injecting an error EDAC/versal: Do not register for NOC errors
2024-05-05Merge tag 'powerpc-6.9-4' of ↵Linus Torvalds3-8/+15
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - Fix incorrect delay handling in the plpks (keystore) code - Fix a panic when an LPAR boots with a frozen PE Thanks to Andrew Donnellan, Gaurav Batra, Nageswara R Sastry, and Nayna Jain. * tag 'powerpc-6.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/pseries/iommu: LPAR panics during boot up with a frozen PE powerpc/pseries: make max polling consistent for longer H_CALLs
2024-05-05Merge tag 'x86-urgent-2024-05-05' of ↵Linus Torvalds9-67/+64
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull misc x86 fixes from Ingo Molnar: - Remove the broken vsyscall emulation code from the page fault code - Fix kexec crash triggered by certain SEV RMP table layouts - Fix unchecked MSR access error when disabling the x2APIC via iommu=off * tag 'x86-urgent-2024-05-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Remove broken vsyscall emulation code from the page fault code x86/apic: Don't access the APIC when disabling x2APIC x86/sev: Add callback to apply RMP table fixups for kexec x86/e820: Add a new e820 table update helper
2024-05-05Merge tag 'irq-urgent-2024-05-05' of ↵Linus Torvalds1-4/+8
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fix from Ingo Molnar: "Fix suspicious RCU usage in __do_softirq()" * tag 'irq-urgent-2024-05-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: softirq: Fix suspicious RCU usage in __do_softirq()
2024-05-05Merge tag 'char-misc-6.9-rc7' of ↵Linus Torvalds13-25/+118
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are some small char/misc/other driver fixes and new device ids for 6.9-rc7 that resolve some reported problems. Included in here are: - iio driver fixes - mei driver fix and new device ids - dyndbg bugfix - pvpanic-pci driver bugfix - slimbus driver bugfix - fpga new device id All have been in linux-next with no reported problems" * tag 'char-misc-6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: slimbus: qcom-ngd-ctrl: Add timeout for wait operation dyndbg: fix old BUG_ON in >control parser misc/pvpanic-pci: register attributes via pci_driver fpga: dfl-pci: add PCI subdevice ID for Intel D5005 card mei: me: add lunar lake point M DID mei: pxp: match against PCI_CLASS_DISPLAY_OTHER iio:imu: adis16475: Fix sync mode setting iio: accel: mxc4005: Reset chip on probe() and resume() iio: accel: mxc4005: Interrupt handling fixes dt-bindings: iio: health: maxim,max30102: fix compatible check iio: pressure: Fixes SPI support for BMP3xx devices iio: pressure: Fixes BME280 SPI driver data
2024-05-05Merge tag 'usb-6.9-rc7' of ↵Linus Torvalds15-79/+147
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB driver fixes from Greg KH: "Here are some small USB driver fixes for reported problems for 6.9-rc7. Included in here are: - usb core fixes for found issues - typec driver fixes for reported problems - usb gadget driver fixes for reported problems - xhci build fixes - dwc3 driver fixes for reported issues All of these have been in linux-next this past week with no reported problems" * tag 'usb-6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: typec: tcpm: Check for port partner validity before consuming it usb: typec: tcpm: enforce ready state when queueing alt mode vdm usb: typec: tcpm: unregister existing source caps before re-registration usb: typec: tcpm: clear pd_event queue in PORT_RESET usb: typec: tcpm: queue correct sop type in tcpm_queue_vdm_unlocked usb: Fix regression caused by invalid ep0 maxpacket in virtual SuperSpeed device usb: ohci: Prevent missed ohci interrupts usb: typec: qcom-pmic: fix pdphy start() error handling usb: typec: qcom-pmic: fix use-after-free on late probe errors usb: gadget: f_fs: Fix a race condition when processing setup packets. USB: core: Fix access violation during port device removal usb: dwc3: core: Prevent phy suspend during init usb: xhci-plat: Don't include xhci.h usb: gadget: uvc: use correct buffer size when parsing configfs lists usb: gadget: composite: fix OS descriptors w_value logic usb: gadget: f_fs: Fix race between aio_cancel() and AIO request complete
2024-05-05Merge tag 'input-for-v6.9-rc6' of ↵Linus Torvalds2-1/+9
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fixes from Dmitry Torokhov: - a new ID for ASUS ROG RAIKIRI controllers added to xpad driver - amimouse driver structure annotated with __refdata to prevent section mismatch warnings. * tag 'input-for-v6.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: amimouse - mark driver struct with __refdata to prevent section mismatch Input: xpad - add support for ASUS ROG RAIKIRI
2024-05-05Merge tag 'probes-fixes-v6.9-rc6' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull probes fix from Masami Hiramatsu: - probe-events: Fix memory leak in parsing probe argument. There is a memory leak (forget to free an allocated buffer) in a memory allocation failure path. Fix it to jump to the correct error handling code. * tag 'probes-fixes-v6.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing/probes: Fix memory leak in traceprobe_parse_probe_arg_body()
2024-05-05Merge tag 'trace-v6.9-rc6-2' of ↵Linus Torvalds5-59/+210
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing and tracefs fixes from Steven Rostedt: - Fix RCU callback of freeing an eventfs_inode. The freeing of the eventfs_inode from the kref going to zero freed the contents of the eventfs_inode and then used kfree_rcu() to free the inode itself. But the contents should also be protected by RCU. Switch to a call_rcu() that calls a function to free all of the eventfs_inode after the RCU synchronization. - The tracing subsystem maps its own descriptor to a file represented by eventfs. The freeing of this descriptor needs to know when the last reference of an eventfs_inode is released, but currently there is no interface for that. Add a "release" callback to the eventfs_inode entry array that allows for freeing of data that can be referenced by the eventfs_inode being opened. Then increment the ref counter for this descriptor when the eventfs_inode file is created, and decrement/free it when the last reference to the eventfs_inode is released and the file is removed. This prevents races between freeing the descriptor and the opening of the eventfs file. - Fix the permission processing of eventfs. The change to make the permissions of eventfs default to the mount point but keep track of when changes were made had a side effect that could cause security concerns. When the tracefs is remounted with a given gid or uid, all the files within it should inherit that gid or uid. But if the admin had changed the permission of some file within the tracefs file system, it would not get updated by the remount. This caused the kselftest of file permissions to fail the second time it is run. The first time, all changes would look fine, but the second time, because the changes were "saved", the remount did not reset them. Create a link list of all existing tracefs inodes, and clear the saved flags on them on a remount if the remount changes the corresponding gid or uid fields. This also simplifies the code by removing the distinction between the toplevel eventfs and an instance eventfs. They should both act the same. They were different because of a misconception due to the remount not resetting the flags. Now that remount resets all the files and directories to default to the root node if a uid/gid is specified, it makes the logic simpler to implement. * tag 'trace-v6.9-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: eventfs: Have "events" directory get permissions from its parent eventfs: Do not treat events directory different than other directories eventfs: Do not differentiate the toplevel events directory tracefs: Still use mount point as default permissions for instances tracefs: Reset permissions on remount if permissions are options eventfs: Free all of the eventfs_inode after RCU eventfs/tracing: Add callback for release of an eventfs_inode
2024-05-05Merge tag 'dma-mapping-6.9-2024-05-04' of ↵Linus Torvalds1-0/+1
git://git.infradead.org/users/hch/dma-mapping Pull dma-mapping fix from Christoph Hellwig: - fix the combination of restricted pools and dynamic swiotlb (Will Deacon) * tag 'dma-mapping-6.9-2024-05-04' of git://git.infradead.org/users/hch/dma-mapping: swiotlb: initialise restricted pool list_head when SWIOTLB_DYNAMIC=y
2024-05-05Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds7-8/+60
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fixes from Stephen Boyd: "A handful of clk driver fixes: - Avoid a deadlock in the Qualcomm clk driver by making the regulator which supplies the GDSC optional - Restore RPM clks on Qualcomm msm8976 by setting num_clks - Fix Allwinner H6 CPU rate changing logic to avoid system crashes by temporarily reparenting the CPU clk to something that isn't being changed - Set a MIPI PLL min/max rate on Allwinner A64 to fix blank screens on some devices - Revert back to of_match_device() in the Samsung clkout driver to get the match data based on the parent device's compatible string" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: samsung: Revert "clk: Use device_get_match_data()" clk: sunxi-ng: a64: Set minimum and maximum rate for PLL-MIPI clk: sunxi-ng: common: Support minimum and maximum rate clk: sunxi-ng: h6: Reparent CPUX during PLL CPUX rate change clk: qcom: smd-rpm: Restore msm8976 num_clk clk: qcom: gdsc: treat optional supplies as optional
2024-05-04eventfs: Have "events" directory get permissions from its parentSteven Rostedt (Google)1-6/+24
The events directory gets its permissions from the root inode. But this can cause an inconsistency if the instances directory changes its permissions, as the permissions of the created directories under it should inherit the permissions of the instances directory when directories under it are created. Currently the behavior is: # cd /sys/kernel/tracing # chgrp 1002 instances # mkdir instances/foo # ls -l instances/foo [..] -r--r----- 1 root lkp 0 May 1 18:55 buffer_total_size_kb -rw-r----- 1 root lkp 0 May 1 18:55 current_tracer -rw-r----- 1 root lkp 0 May 1 18:55 error_log drwxr-xr-x 1 root root 0 May 1 18:55 events --w------- 1 root lkp 0 May 1 18:55 free_buffer drwxr-x--- 2 root lkp 0 May 1 18:55 options drwxr-x--- 10 root lkp 0 May 1 18:55 per_cpu -rw-r----- 1 root lkp 0 May 1 18:55 set_event All the files and directories under "foo" has the "lkp" group except the "events" directory. That's because its getting its default value from the mount point instead of its parent. Have the "events" directory make its default value based on its parent's permissions. That now gives: # ls -l instances/foo [..] -rw-r----- 1 root lkp 0 May 1 21:16 buffer_subbuf_size_kb -r--r----- 1 root lkp 0 May 1 21:16 buffer_total_size_kb -rw-r----- 1 root lkp 0 May 1 21:16 current_tracer -rw-r----- 1 root lkp 0 May 1 21:16 error_log drwxr-xr-x 1 root lkp 0 May 1 21:16 events --w------- 1 root lkp 0 May 1 21:16 free_buffer drwxr-x--- 2 root lkp 0 May 1 21:16 options drwxr-x--- 10 root lkp 0 May 1 21:16 per_cpu -rw-r----- 1 root lkp 0 May 1 21:16 set_event Link: https://lore.kernel.org/linux-trace-kernel/20240502200906.161887248@goodmis.org Cc: stable@vger.kernel.org Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Andrew Morton <akpm@linux-foundation.org> Fixes: 8186fff7ab649 ("tracefs/eventfs: Use root and instance inodes as default ownership") Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-05-04eventfs: Do not treat events directory different than other directoriesSteven Rostedt (Google)1-15/+1
Treat the events directory the same as other directories when it comes to permissions. The events directory was considered different because it's dentry is persistent, whereas the other directory dentries are created when accessed. But the way tracefs now does its ownership by using the root dentry's permissions as the default permissions, the events directory can get out of sync when a remount is performed setting the group and user permissions. Remove the special case for the events directory on setting the attributes. This allows the updates caused by remount to work properly as well as simplifies the code. Link: https://lore.kernel.org/linux-trace-kernel/20240502200906.002923579@goodmis.org Cc: stable@vger.kernel.org Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Andrew Morton <akpm@linux-foundation.org> Fixes: 8186fff7ab649 ("tracefs/eventfs: Use root and instance inodes as default ownership") Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-05-04eventfs: Do not differentiate the toplevel events directorySteven Rostedt (Google)2-25/+11
The toplevel events directory is really no different than the events directory of instances. Having the two be different caused inconsistencies and made it harder to fix the permissions bugs. Make all events directories act the same. Link: https://lore.kernel.org/linux-trace-kernel/20240502200905.846448710@goodmis.org Cc: stable@vger.kernel.org Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Andrew Morton <akpm@linux-foundation.org> Fixes: 8186fff7ab649 ("tracefs/eventfs: Use root and instance inodes as default ownership") Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-05-04tracefs: Still use mount point as default permissions for instancesSteven Rostedt (Google)1-2/+25
If the instances directory's permissions were never change, then have it and its children use the mount point permissions as the default. Currently, the permissions of instance directories are determined by the instance directory's permissions itself. But if the tracefs file system is remounted and changes the permissions, the instance directory and its children should use the new permission. But because both the instance directory and its children use the instance directory's inode for permissions, it misses the update. To demonstrate this: # cd /sys/kernel/tracing/ # mkdir instances/foo # ls -ld instances/foo drwxr-x--- 5 root root 0 May 1 19:07 instances/foo # ls -ld instances drwxr-x--- 3 root root 0 May 1 18:57 instances # ls -ld current_tracer -rw-r----- 1 root root 0 May 1 18:57 current_tracer # mount -o remount,gid=1002 . # ls -ld instances drwxr-x--- 3 root root 0 May 1 18:57 instances # ls -ld instances/foo/ drwxr-x--- 5 root root 0 May 1 19:07 instances/foo/ # ls -ld current_tracer -rw-r----- 1 root lkp 0 May 1 18:57 current_tracer Notice that changing the group id to that of "lkp" did not affect the instances directory nor its children. It should have been: # ls -ld current_tracer -rw-r----- 1 root root 0 May 1 19:19 current_tracer # ls -ld instances/foo/ drwxr-x--- 5 root root 0 May 1 19:25 instances/foo/ # ls -ld instances drwxr-x--- 3 root root 0 May 1 19:19 instances # mount -o remount,gid=1002 . # ls -ld current_tracer -rw-r----- 1 root lkp 0 May 1 19:19 current_tracer # ls -ld instances drwxr-x--- 3 root lkp 0 May 1 19:19 instances # ls -ld instances/foo/ drwxr-x--- 5 root lkp 0 May 1 19:25 instances/foo/ Where all files were updated by the remount gid update. Link: https://lore.kernel.org/linux-trace-kernel/20240502200905.686838327@goodmis.org Cc: stable@vger.kernel.org Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Andrew Morton <akpm@linux-foundation.org> Fixes: 8186fff7ab649 ("tracefs/eventfs: Use root and instance inodes as default ownership") Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-05-04tracefs: Reset permissions on remount if permissions are optionsSteven Rostedt (Google)3-2/+99
There's an inconsistency with the way permissions are handled in tracefs. Because the permissions are generated when accessed, they default to the root inode's permission if they were never set by the user. If the user sets the permissions, then a flag is set and the permissions are saved via the inode (for tracefs files) or an internal attribute field (for eventfs). But if a remount happens that specify the permissions, all the files that were not changed by the user gets updated, but the ones that were are not. If the user were to remount the file system with a given permission, then all files and directories within that file system should be updated. This can cause security issues if a file's permission was updated but the admin forgot about it. They could incorrectly think that remounting with permissions set would update all files, but miss some. For example: # cd /sys/kernel/tracing # chgrp 1002 current_tracer # ls -l [..] -rw-r----- 1 root root 0 May 1 21:25 buffer_size_kb -rw-r----- 1 root root 0 May 1 21:25 buffer_subbuf_size_kb -r--r----- 1 root root 0 May 1 21:25 buffer_total_size_kb -rw-r----- 1 root lkp 0 May 1 21:25 current_tracer -rw-r----- 1 root root 0 May 1 21:25 dynamic_events -r--r----- 1 root root 0 May 1 21:25 dyn_ftrace_total_info -r--r----- 1 root root 0 May 1 21:25 enabled_functions Where current_tracer now has group "lkp". # mount -o remount,gid=1001 . # ls -l -rw-r----- 1 root tracing 0 May 1 21:25 buffer_size_kb -rw-r----- 1 root tracing 0 May 1 21:25 buffer_subbuf_size_kb -r--r----- 1 root tracing 0 May 1 21:25 buffer_total_size_kb -rw-r----- 1 root lkp 0 May 1 21:25 current_tracer -rw-r----- 1 root tracing 0 May 1 21:25 dynamic_events -r--r----- 1 root tracing 0 May 1 21:25 dyn_ftrace_total_info -r--r----- 1 root tracing 0 May 1 21:25 enabled_functions Everything changed but the "current_tracer". Add a new link list that keeps track of all the tracefs_inodes which has the permission flags that tell if the file/dir should use the root inode's permission or not. Then on remount, clear all the flags so that the default behavior of using the root inode's permission is done for all files and directories. Link: https://lore.kernel.org/linux-trace-kernel/20240502200905.529542160@goodmis.org Cc: stable@vger.kernel.org Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Andrew Morton <akpm@linux-foundation.org> Fixes: 8186fff7ab649 ("tracefs/eventfs: Use root and instance inodes as default ownership") Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-05-04eventfs: Free all of the eventfs_inode after RCUSteven Rostedt (Google)1-9/+16
The freeing of eventfs_inode via a kfree_rcu() callback. But the content of the eventfs_inode was being freed after the last kref. This is dangerous, as changes are being made that can access the content of an eventfs_inode from an RCU loop. Instead of using kfree_rcu() use call_rcu() that calls a function to do all the freeing of the eventfs_inode after a RCU grace period has expired. Link: https://lore.kernel.org/linux-trace-kernel/20240502200905.370261163@goodmis.org Cc: stable@vger.kernel.org Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Andrew Morton <akpm@linux-foundation.org> Fixes: 43aa6f97c2d03 ("eventfs: Get rid of dentry pointers without refcounts") Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-05-04eventfs/tracing: Add callback for release of an eventfs_inodeSteven Rostedt (Google)3-2/+36
Synthetic events create and destroy tracefs files when they are created and removed. The tracing subsystem has its own file descriptor representing the state of the events attached to the tracefs files. There's a race between the eventfs files and this file descriptor of the tracing system where the following can cause an issue: With two scripts 'A' and 'B' doing: Script 'A': echo "hello int aaa" > /sys/kernel/tracing/synthetic_events while : do echo 0 > /sys/kernel/tracing/events/synthetic/hello/enable done Script 'B': echo > /sys/kernel/tracing/synthetic_events Script 'A' creates a synthetic event "hello" and then just writes zero into its enable file. Script 'B' removes all synthetic events (including the newly created "hello" event). What happens is that the opening of the "enable" file has: { struct trace_event_file *file = inode->i_private; int ret; ret = tracing_check_open_get_tr(file->tr); [..] But deleting the events frees the "file" descriptor, and a "use after free" happens with the dereference at "file->tr". The file descriptor does have a reference counter, but there needs to be a way to decrement it from the eventfs when the eventfs_inode is removed that represents this file descriptor. Add an optional "release" callback to the eventfs_entry array structure, that gets called when the eventfs file is about to be removed. This allows for the creating on the eventfs file to increment the tracing file descriptor ref counter. When the eventfs file is deleted, it can call the release function that will call the put function for the tracing file descriptor. This will protect the tracing file from being freed while a eventfs file that references it is being opened. Link: https://lore.kernel.org/linux-trace-kernel/20240426073410.17154-1-Tze-nan.Wu@mediatek.com/ Link: https://lore.kernel.org/linux-trace-kernel/20240502090315.448cba46@gandalf.local.home Cc: stable@vger.kernel.org Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Fixes: 5790b1fb3d672 ("eventfs: Remove eventfs_file and just use eventfs_inode") Reported-by: Tze-nan wu <Tze-nan.Wu@mediatek.com> Tested-by: Tze-nan Wu (吳澤南) <Tze-nan.Wu@mediatek.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-05-04Merge tag 'cxl-fixes-6.9-rc7' of ↵Linus Torvalds2-1/+21
git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl Pull cxl fix from Dave Jiang: "Add missing RCH support for endpoint access_coordinate calculation. A late bug was reported by Robert Richter that the Restricted CXL Host (RCH) support was missing in the CXL endpoint access_coordinate calculation. The missing support causes the topology iterator to stumble over a NULL pointer and triggers a kernel OOPS on a platform with CXL 1.1 support. The fix bypasses RCH topology as the access_coordinate calculation is not necessary since RCH does not support hotplug and the memory region exported should be covered by the HMAT table already. A unit test is also added to cxl_test to check against future regressions on the topology iterator" * tag 'cxl-fixes-6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: cxl: Fix cxl_endpoint_get_perf_coordinate() support for RCH
2024-05-03Merge tag 'for-linus-6.9a-rc7-tag' of ↵Linus Torvalds2-3/+12
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: "Two fixes when running as Xen PV guests for issues introduced in the 6.9 merge window, both related to apic id handling" * tag 'for-linus-6.9a-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: x86/xen: return a sane initial apic id when running as PV guest x86/xen/smp_pv: Register the boot CPU APIC properly
2024-05-03Merge tag 'efi-urgent-for-v6.9-1' of ↵Linus Torvalds1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi Pull EFI fix from Ard Biesheuvel: "This works around a shortcoming in the memory acceptation API, which may apparently hog the CPU for long enough to trigger the softlockup watchdog. Note that this only affects confidential VMs running under the Intel TDX hypervisor, which is why I accepted this for now, but this should obviously be fixed properly in the future" * tag 'efi-urgent-for-v6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: efi/unaccepted: touch soft lockup during memory accept
2024-05-03Merge tag 'block-6.9-20240503' of git://git.kernel.dk/linuxLinus Torvalds11-39/+67
Pull block fixes from Jens Axboe: "Nothing major in here - an nvme pull request with mostly auth/tcp fixes, and a single fix for ublk not setting segment count and size limits" * tag 'block-6.9-20240503' of git://git.kernel.dk/linux: nvme-tcp: strict pdu pacing to avoid send stalls on TLS nvmet: fix nvme status code when namespace is disabled nvmet-tcp: fix possible memory leak when tearing down a controller nvme: cancel pending I/O if nvme controller is in terminal state nvmet-auth: replace pr_debug() with pr_err() to report an error. nvmet-auth: return the error code to the nvmet_auth_host_hash() callers nvme: find numa distance only if controller has valid numa id ublk: remove segment count and size limits nvme: fix warn output about shared namespaces without CONFIG_NVME_MULTIPATH
2024-05-03Merge tag 'sound-6.9-rc7' of ↵Linus Torvalds44-241/+704
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "As usual in a late stage, we received a fair amount of fixes for ASoC, and it became bigger than wished. But all fixes are rather device- specific, and they look pretty safe to apply. A major par of changes are series of fixes for ASoC meson and SOF drivers as well as for Realtek and Cirrus codecs. In addition, recent emu10k1 regression fixes and usual HD-audio quirks are included" * tag 'sound-6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (46 commits) ALSA: hda/realtek: Fix build error without CONFIG_PM ALSA: hda/realtek: Fix conflicting PCI SSID 17aa:386f for Lenovo Legion models ALSA: hda/realtek - Set GPIO3 to default at S4 state for Thinkpad with ALC1318 ALSA: hda: intel-sdw-acpi: fix usage of device_get_named_child_node() ALSA: hda: intel-dsp-config: harden I2C/I2S codec detection ASoC: cs35l56: fix usages of device_get_named_child_node() ASoC: da7219-aad: fix usage of device_get_named_child_node() ASoC: meson: cards: select SND_DYNAMIC_MINORS ASoC: meson: axg-tdm: add continuous clock support ASoC: meson: axg-tdm-interface: manage formatters in trigger ASoC: meson: axg-card: make links nonatomic ASoC: meson: axg-fifo: use threaded irq to check periods ALSA: hda/realtek: Fix mute led of HP Laptop 15-da3001TU ALSA: emu10k1: make E-MU FPGA writes potentially more reliable ALSA: emu10k1: fix E-MU dock initialization ALSA: emu10k1: use mutex for E-MU FPGA access locking ALSA: emu10k1: move the whole GPIO event handling to the workqueue ALSA: emu10k1: factor out snd_emu1010_load_dock_firmware() ALSA: emu10k1: fix E-MU card dock presence monitoring ASoC: rt715-sdca: volume step modification ...
2024-05-03Merge tag 'drm-fixes-2024-05-03' of https://gitlab.freedesktop.org/drm/kernelLinus Torvalds26-101/+223
Pull drm fixes from Dave Airlie: "Weekly fixes, mostly made up from amdgpu and some panel changes. Otherwise xe, nouveau, vmwgfx and a couple of others, all seems pretty on track. amdgpu: - Fix VRAM memory accounting - DCN 3.1 fixes - DCN 2.0 fix - DCN 3.1.5 fix - DCN 3.5 fix - DCN 3.2.1 fix - DP fixes - Seamless boot fix - Fix call order in amdgpu_ttm_move() - Fix doorbell regression - Disable panel replay temporarily amdkfd: - Flush wq before creating kfd process xe: - Fix UAF on rebind worker - Fix ADL-N display integration imagination: - fix page-count macro nouveau: - avoid page-table allocation failures - fix firmware memory allocation panel: - ili9341: avoid OF for device properties; respect deferred probe; fix usage of errno codes ttm: - fix status output vmwgfx: - fix legacy display unit - fix read length in fence signalling" * tag 'drm-fixes-2024-05-03' of https://gitlab.freedesktop.org/drm/kernel: (25 commits) drm/xe/display: Fix ADL-N detection drm/panel: ili9341: Use predefined error codes drm/panel: ili9341: Respect deferred probe drm/panel: ili9341: Correct use of device property APIs drm/xe/vm: prevent UAF in rebind_work_func() drm/amd/display: Disable panel replay by default for now drm/amdgpu: fix doorbell regression drm/amdkfd: Flush the process wq before creating a kfd_process drm/amd/display: Disable seamless boot on 128b/132b encoding drm/amd/display: Fix DC mode screen flickering on DCN321 drm/amd/display: Add VCO speed parameter for DCN31 FPU drm/amdgpu: once more fix the call oder in amdgpu_ttm_move() v2 drm/amd/display: Allocate zero bw after bw alloc enable drm/amd/display: Fix incorrect DSC instance for MST drm/amd/display: Atom Integrated System Info v2_2 for DCN35 drm/amd/display: Add dtbclk access to dcn315 drm/amd/display: Ensure that dmcub support flag is set for DCN20 drm/amd/display: Handle Y carry-over in VCP X.Y calculation drm/amdgpu: Fix VRAM memory accounting drm/vmwgfx: Fix invalid reads in fence signaled events ...
2024-05-03Merge tag 'spi-fix-v6.9-rc6' of ↵Linus Torvalds3-3/+2
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi fixes from Mark Brown: "A few small fixes for v6.9, The core fix is for issues with reuse of a spi_message in the case where we've got queued messages (a relatively rare occurrence with modern code so it wasn't noticed in testing). We also avoid an issue with the Kunpeng driver by simply removing the debug interface that could trigger it, and address issues with confusing and corrupted output when printing the IP version of the AXI SPI engine" * tag 'spi-fix-v6.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: fix null pointer dereference within spi_sync spi: hisi-kunpeng: Delete the dump interface of data registers in debugfs spi: axi-spi-engine: fix version format string
2024-05-03drm/meson: dw-hdmi: add bandgap setting for g12Jerome Brunet1-17/+26
When no mode is set, the utility pin appears to be grounded. No signal is getting through. This is problematic because ARC and eARC use this line and may do so even if no display mode is set. This change enable the bandgap setting on g12 chip, which fix the problem with the utility pin. This is done by restoring init values on PHY init and disable. Fixes: 3b7c1237a72a ("drm/meson: Add G12A support for the DW-HDMI Glue") Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20240426160256.3089978-3-jbrunet@baylibre.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240426160256.3089978-3-jbrunet@baylibre.com
2024-05-03drm/meson: dw-hdmi: power up phy on device initJerome Brunet1-34/+17
The phy is not in a useful state right after init. It will become useful, including for auxiliary function such as CEC or ARC, after the first mode is set. This is a problem on systems where the display is using another interface like DSI or CVBS. This change refactor the init and mode change callback to power up the PHY on init and leave only what is necessary for mode changes in the related function. This is enough to fix CEC operation when HDMI display is not enabled. Fixes: 3f68be7d8e96 ("drm/meson: Add support for HDMI encoder and DW-HDMI bridge + PHY") Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20240426160256.3089978-2-jbrunet@baylibre.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240426160256.3089978-2-jbrunet@baylibre.com
2024-05-03slimbus: qcom-ngd-ctrl: Add timeout for wait operationViken Dadhaniya1-1/+5
In current driver qcom_slim_ngd_up_worker() indefinitely waiting for ctrl->qmi_up completion object. This is resulting in workqueue lockup on Kthread. Added wait_for_completion_interruptible_timeout to allow the thread to wait for specific timeout period and bail out instead waiting infinitely. Fixes: a899d324863a ("slimbus: qcom-ngd-ctrl: add Sub System Restart support") Cc: stable@vger.kernel.org Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by: Viken Dadhaniya <quic_vdadhani@quicinc.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20240430091238.35209-2-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-05-03Merge tag 'drm-misc-fixes-2024-05-02' of ↵Dave Airlie9-45/+80
https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes Short summary of fixes pull: imagination: - fix page-count macro nouveau: - avoid page-table allocation failures - fix firmware memory allocation panel: - ili9341: avoid OF for device properties; respect deferred probe; fix usage of errno codes ttm: - fix status output vmwgfx: - fix legacy display unit - fix read length in fence signalling Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20240502192117.GA12158@linux.fritz.box