- 19 Jan, 2023 9 commits
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Mike Leach authored
Use the TraceID API to allocate ETM trace IDs dynamically. As with the etm4x we allocate on enable / disable for perf, allocate on enable / reset for sysfs. Additionally we allocate on sysfs file read as both perf and sysfs can read the ID before enabling the hardware. Remove sysfs option to write trace ID - which is inconsistent with both the dynamic allocation method and the fixed allocation method previously used. Signed-off-by: Mike Leach <mike.leach@linaro.org> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230116124928.5440-7-mike.leach@linaro.org
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Mike Leach authored
The trace ID API is now used to allocate trace IDs for ETM4.x / ETE devices. For perf sessions, these will be allocated on enable, and released on disable. For sysfs sessions, these will be allocated on enable, but only released on reset. This allows the sysfs session to interrogate the Trace ID used after the session is over - maintaining functional consistency with the previous allocation scheme. The trace ID will also be allocated on read of the mgmt/trctraceid file. This ensures that if perf or sysfs read this before enabling trace, the value will be the one used for the trace session. Trace ID initialisation is removed from the _probe() function. Signed-off-by: Mike Leach <mike.leach@linaro.org> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230116124928.5440-6-mike.leach@linaro.org
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Mike Leach authored
Updates the STM driver to use the trace ID allocation API. This uses the _system_id calls to allocate an ID on device poll, and release on device remove. The sysfs access to the STMTRACEIDR register has been changed from RW to RO. Having this value as writable is not appropriate for the new Trace ID scheme - and had potential to cause errors in the previous scheme if values clashed with other sources. Signed-off-by: Mike Leach <mike.leach@linaro.org> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230116124928.5440-5-mike.leach@linaro.org
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Mike Leach authored
Adds in calls to allocate and release Trace ID for the CPUs in use by the perf session. Adds in notifier calls to the trace ID allocator that perf events are starting and stopping. This ensures that Trace IDs associated with CPUs remain the same throughout the perf session, and are only released when all perf sessions are complete. Signed-off-by: Mike Leach <mike.leach@linaro.org> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230116124928.5440-4-mike.leach@linaro.org
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Mike Leach authored
The checks for sources to have unique IDs has been removed - this is now guaranteed by the ID allocation mechanisms, and inappropriate where multiple ID maps are in use in larger systems Signed-off-by: Mike Leach <mike.leach@linaro.org> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230116124928.5440-3-mike.leach@linaro.org
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Mike Leach authored
The existing mechanism to assign Trace ID values to sources is limited and does not scale for larger multicore / multi trace source systems. The API introduces functions that reserve IDs based on availabilty represented by a coresight_trace_id_map structure. This records the used and free IDs in a bitmap. CPU bound sources such as ETMs use the coresight_trace_id_get_cpu_id coresight_trace_id_put_cpu_id pair of functions. The API will record the ID associated with the CPU. This ensures that the same ID will be re-used while perf events are active on the CPU. The put_cpu_id function will pend release of the ID until all perf cs_etm sessions are complete. For backward compatibility the functions will attempt to use the same CPU IDs as the legacy system would have used if these are still available. Non-cpu sources, such as the STM can use coresight_trace_id_get_system_id / coresight_trace_id_put_system_id. Signed-off-by: Mike Leach <mike.leach@linaro.org> [ Fix checkpatch warning in drivers/hwtracing/coresight/coresight-trace-id.c ] Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230116124928.5440-2-mike.leach@linaro.org
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Yicong Yang authored
Add missing entries for the perf userspace part of this driver. Also add Jonathan as the maintainer for his expertise on this driver and PCIe stuffs. Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230112112201.16283-2-yangyicong@huawei.com
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Yicong Yang authored
The PTT device can only support the devices on the same PCIe core, within BDF range [lower_bdf, upper_bdf]. It's not correct to assume the devices on the root bus are from the same PCIe core, there are cases that root ports from different PCIe core are sharing the same bus. So check when initializing the filters list. Fixes: ff0de066 ("hwtracing: hisi_ptt: Add trace function support for HiSilicon PCIe Tune and Trace device") Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230112112201.16283-1-yangyicong@huawei.com
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Yang Yingliang authored
platform_get_resource() returns NULL pointer not PTR_ERR(), replace the IS_ERR() check with NULL pointer check. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230118074920.1772141-1-yangyingliang@huawei.com
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- 16 Jan, 2023 6 commits
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Qi Liu authored
Bring in documentation for UltraSoc SMB driver. It simply describes the device, sysfs interface and the firmware bindings. Signed-off-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Junhao He <hejunhao3@huawei.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230114101302.62320-3-hejunhao3@huawei.com
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Qi Liu authored
Add driver for UltraSoc SMB(System Memory Buffer) device. SMB provides a way to buffer messages from ETM, and store these "CPU instructions trace" in system memory. The SMB device is identifier as ACPI HID "HISI03A1". Device system memory address resources are allocated using the _CRS method and buffer modes is the circular buffer mode. SMB is developed by UltraSoc technology, which is acquired by Siemens, and we still use "UltraSoc" to name driver. Signed-off-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Junhao He <hejunhao3@huawei.com> Tested-by: JunHao He <hejunhao3@huawei.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230114101302.62320-2-hejunhao3@huawei.com
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James Clark authored
enable_req_count is only ever accessed inside the spinlock, so to avoid confusion that there are concurrent accesses and simplify the code, change it to an int. One access outside of the spinlock is in enable_show() which appears to allow partially written data to be displayed between enable_req_count, powered and enabled so move this one inside the spin lock too. Signed-off-by: James Clark <james.clark@arm.com> Reviewed-by: Mike Leach <mike.leach@linaro.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230110110736.2709917-4-james.clark@arm.com
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Mao Jinlong authored
In commit 6746eae4 ("coresight: cti: Fix hang in cti_disable_hw()") PM runtime calls are removed from cti_enable_hw/cti_disable_hw. When enabling CTI by writing enable sysfs node, clock for accessing CTI register won't be enabled. Device will crash due to register access issue. Add PM runtime call in enable_store to fix this issue. Fixes: 6746eae4 ("coresight: cti: Fix hang in cti_disable_hw()") Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com> [Change to only call pm_runtime_put if a disable happened] Tested-by: Jinlong Mao <quic_jinlmao@quicinc.com> Signed-off-by: James Clark <james.clark@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230110110736.2709917-3-james.clark@arm.com
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James Clark authored
Writing 0 to the enable control repeatedly results in a negative value for enable_req_count. After this, writing 1 to the enable control appears to not work until the count returns to positive. Change it so that it's impossible for enable_req_count to be < 0. Return an error to indicate that the disable request was invalid. Fixes: 835d722b ("coresight: cti: Initial CoreSight CTI Driver") Tested-by: Jinlong Mao <quic_jinlmao@quicinc.com> Signed-off-by: James Clark <james.clark@arm.com> Reviewed-by: Mike Leach <mike.leach@linaro.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230110110736.2709917-2-james.clark@arm.com
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Junhao He authored
The TRCSEQRSTEVR and TRCSEQSTR registers are not implemented if the TRCIDR5.NUMSEQSTATE == 0. Skip accessing the registers in such cases. Fixes: 2e1cdfe1 ("coresight-etm4x: Adding CoreSight ETM4x driver") Signed-off-by: Junhao He <hejunhao3@huawei.com> Reviewed-by: Mike Leach <mike.leach@linaro.org> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230114091632.60095-1-hejunhao3@huawei.com
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- 01 Jan, 2023 6 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf fixes from Borislav Petkov: - Pass only an initialized perf event attribute to the LSM hook - Fix a use-after-free on the perf syscall's error path - A potential integer overflow fix in amd_core_pmu_init() - Fix the cgroup events tracking after the context handling rewrite - Return the proper value from the inherit_event() function on error * tag 'perf_urgent_for_v6.2_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/core: Call LSM hook after copying perf_event_attr perf: Fix use-after-free in error path perf/x86/amd: fix potential integer overflow on shift of a int perf/core: Fix cgroup events tracking perf core: Return error pointer if inherit_event() fails to find pmu_ctx
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Borislav Petkov: - Two fixes to correct how kprobes handles INT3 now that they're added by other functionality like the rethunks and not only kgdb - Remove __init section markings of two functions which are referenced by a function in the .text section * tag 'x86_urgent_for_v6.2_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/kprobes: Fix optprobe optimization check with CONFIG_RETHUNK x86/kprobes: Fix kprobes instruction boudary check with CONFIG_RETHUNK x86/calldepth: Fix incorrect init section references
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull locking fixes from Borislav Petkov: - Prevent the leaking of a debug timer in futex_waitv() - A preempt-RT mutex locking fix, adding the proper acquire semantics * tag 'locking_urgent_for_v6.2_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: futex: Fix futex_waitv() hrtimer debug object leak on kcalloc error rtmutex: Add acquire semantics for rtmutex lock acquisition slow path
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git://anongit.freedesktop.org/drm/drmLinus Torvalds authored
Pull drm fixes from Daniel Vetter: "I'm just back from the mountains, and Dave is out at the beach and should be back in a week again. Just i915 fixes and since Rodrigo bothered to make the pull last week I figured I should warm up gpg and forward this in a nice signed tag as a new years present! - i915 fixes for newer platforms - i915 locking rework to not give up in vm eviction fallback path too early" * tag 'drm-fixes-2023-01-01' of git://anongit.freedesktop.org/drm/drm: drm/i915/dsi: fix MIPI_BKLT_EN_1 native GPIO index drm/i915/dsi: add support for ICL+ native MIPI GPIO sequence drm/i915/uc: Fix two issues with over-size firmware files drm/i915: improve the catch-all evict to handle lock contention drm/i915: Remove __maybe_unused from mtl_info drm/i915: fix TLB invalidation for Gen12.50 video and compute engines
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Daniel Vetter authored
Merge tag 'drm-intel-fixes-2022-12-30' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes - fix TLB invalidation for DG2 and newer platforms. (Andrzej) - Remove __maybe_unused from mtl_info (Lucas) - improve the catch-all evict to handle lock contention (Matt Auld) - Fix two issues with over-size (GuC/HuC) firmware files (John) - Fix DSI resume issues on ICL+ (Jani) Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/Y662ijDHrZCjTFla@intel.com
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- 31 Dec, 2022 2 commits
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Linus Torvalds authored
Merge tag 'kbuild-fixes-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - Fix broken BuildID - Add srcrpm-pkg to the help message - Fix the option order for modpost built with musl libc - Fix the build dependency of rpm-pkg for openSUSE * tag 'kbuild-fixes-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: fixdep: remove unneeded <stdarg.h> inclusion kbuild: sort single-targets alphabetically again kbuild: rpm-pkg: add libelf-devel as alternative for BuildRequires kbuild: Fix running modpost with musl libc kbuild: add a missing line for help message .gitignore: ignore *.rpm arch: fix broken BuildID for arm64 and riscv kconfig: Add static text for search information in help menu
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git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libataLinus Torvalds authored
Pull ata fix from Damien Le Moal: "A single fix to address an issue with wake from suspend with PCS adapters, from Adam" * tag 'ata-6.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata: ata: ahci: Fix PCS quirk application for suspend
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- 30 Dec, 2022 17 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull ACPI fixes from Rafael Wysocki: "These are new ACPI IRQ override quirks, low-power S0 idle (S0ix) support adjustments and ACPI backlight handling fixes, mostly for platforms using AMD chips. Specifics: - Add ACPI IRQ override quirks for Asus ExpertBook B2502, Lenovo 14ALC7, and XMG Core 15 (Hans de Goede, Adrian Freund, Erik Schumacher). - Adjust ACPI video detection fallback path to prevent non-operational ACPI backlight devices from being created on systems where the native driver does not detect a suitable panel (Mario Limonciello). - Fix Apple GMUX backlight detection (Hans de Goede). - Add a low-power S0 idle (S0ix) handling quirk for HP Elitebook 865 and stop using AMD-specific low-power S0 idle code path for systems with Rembrandt chips and newer (Mario Limonciello)" * tag 'acpi-6.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: x86: s2idle: Stop using AMD specific codepath for Rembrandt+ ACPI: x86: s2idle: Force AMD GUID/_REV 2 on HP Elitebook 865 ACPI: video: Fix Apple GMUX backlight detection ACPI: resource: Add Asus ExpertBook B2502 to Asus quirks ACPI: resource: do IRQ override on Lenovo 14ALC7 ACPI: resource: do IRQ override on XMG Core 15 ACPI: video: Don't enable fallback path for creating ACPI backlight by default drm/amd/display: Report to ACPI video if no panels were found ACPI: video: Allow GPU drivers to report no panels
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound fixes from Takashi Iwai: "Just a few small fixes: - A regression fix for HDMI audio on HD-audio AMD codecs - Fixes for LINE6 MIDI handling - HD-audio quirk for Dell laptops" * tag 'sound-6.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda/hdmi: Static PCM mapping again with AMD HDMI codecs ALSA: hda/realtek: Apply dual codec fixup for Dell Latitude laptops ALSA: line6: fix stack overflow in line6_midi_transmit ALSA: line6: correct midi status byte when receiving data from podxt
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Rafael J. Wysocki authored
Merge ACPI resource handling quirks and ACPI backlight handling fixes for 6.2-rc2: - Add ACPI IRQ override quirks for Asus ExpertBook B2502, Lenovo 14ALC7, and XMG Core 15 (Hans de Goede, Adrian Freund, Erik Schumacher). - Adjust ACPI video detection fallback path to prevent non-operational ACPI backlight devices from being created on systems where the native driver does not detect a suitable panel (Mario Limonciello). - Fix Apple GMUX backlight detection (Hans de Goede). * acpi-resource: ACPI: resource: Add Asus ExpertBook B2502 to Asus quirks ACPI: resource: do IRQ override on Lenovo 14ALC7 ACPI: resource: do IRQ override on XMG Core 15 * acpi-video: ACPI: video: Fix Apple GMUX backlight detection ACPI: video: Don't enable fallback path for creating ACPI backlight by default drm/amd/display: Report to ACPI video if no panels were found ACPI: video: Allow GPU drivers to report no panels
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Jani Nikula authored
Due to copy-paste fail, MIPI_BKLT_EN_1 would always use PPS index 1, never 0. Fix the sloppiest commit in recent memory. Fixes: 963bbdb3 ("drm/i915/dsi: add support for ICL+ native MIPI GPIO sequence") Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221220140105.313333-1-jani.nikula@intel.com (cherry picked from commit a561933c) Cc: stable@vger.kernel.org # 6.1 Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Jani Nikula authored
Starting from ICL, the default for MIPI GPIO sequences seems to be using native GPIOs i.e. GPIOs available in the GPU. These native GPIOs reuse many pins that quite frankly seem scary to poke based on the VBT sequences. We pretty much have to trust that the board is configured such that the relevant HPD, PP_CONTROL and GPIO bits aren't used for anything else. MIPI sequence v4 also adds a flag to fall back to non-native sequences. v5: - Wrap SHOTPLUG_CTL_DDI modification in spin_lock() in icp_irq_handler() too (Ville) - References instead of Closes issue 6131 because this does not fix everything v4: - Wrap SHOTPLUG_CTL_DDI modification in spin_lock_irq() (Ville) v3: - Fix -Wbitwise-conditional-parentheses (kernel test robot <lkp@intel.com>) v2: - Fix HPD pin output set (impacts GPIOs 0 and 5) - Fix GPIO data output direction set (impacts GPIOs 4 and 9) - Reduce register accesses to single intel_de_rwm() References: https://gitlab.freedesktop.org/drm/intel/-/issues/6131 Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221219105955.4014451-1-jani.nikula@intel.com (cherry picked from commit f087cfe6) Cc: stable@vger.kernel.org # 6.1 Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Masahiro Yamada authored
This is unneeded since commit 69304379 ("fixdep: use fflush() and ferror() to ensure successful write to files"). Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Masahiro Yamada authored
This was previously alphabetically sorted. Sort it again. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Miguel Ojeda <ojeda@kernel.org> Reviewed-by: Nathan Chancellor <nathan@kernel.org>
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Masahiro Yamada authored
Guoqing Jiang reports that openSUSE cannot compile the kernel rpm due to "BuildRequires: elfutils-libelf-devel" added by commit 8818039f ("kbuild: add ability to make source rpm buildable using koji"). The relevant package name in openSUSE is libelf-devel. Add it as an alternative package. BTW, if it is impossible to solve the build requirement, the final resort would be: $ make RPMOPTS=--nodeps rpm-pkg This passes --nodeps to the rpmbuild command so it will not verify build dependencies. This is useful to test rpm builds on non-rpm system. On Debian/Ubuntu, for example, you can install rpmbuild by 'apt-get install rpm'. NOTE1: Likewise, it is possible to bypass the build dependency check for debian package builds: $ make DPKG_FLAGS=-d deb-pkg NOTE2: The 'or' operator is supported since RPM 4.13. So, old distros such as CentOS 7 will break. I suggest installing newer rpmbuild in such cases. Link: https://lore.kernel.org/linux-kbuild/ee227d24-9c94-bfa3-166a-4ee6b5dfea09@linux.dev/T/#u Fixes: 8818039f ("kbuild: add ability to make source rpm buildable using koji") Reported-by: Guoqing Jiang <guoqing.jiang@linux.dev> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Tested-by: Guoqing Jiang <guoqing.jiang@linux.dev> Acked-by: Jonathan Toppins <jtoppins@redhat.com>
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Samuel Holland authored
commit 3d57e1b7 ("kbuild: refactor the prerequisites of the modpost rule") moved 'vmlinux.o' inside modpost-args, possibly before some of the other options. However, getopt() in musl libc follows POSIX and stops looking for options upon reaching the first non-option argument. As a result, the '-T' option is misinterpreted as a positional argument, and the build fails: make -f ./scripts/Makefile.modpost scripts/mod/modpost -E -o Module.symvers vmlinux.o -T modules.order -T: No such file or directory make[1]: *** [scripts/Makefile.modpost:137: Module.symvers] Error 1 make: *** [Makefile:1960: modpost] Error 2 The fix is to move all options before 'vmlinux.o' in modpost-args. Fixes: 3d57e1b7 ("kbuild: refactor the prerequisites of the modpost rule") Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Jun ASAKA authored
The help message line for building the source RPM package was missing. Added it. Signed-off-by: Jun ASAKA <JunASAKA@zzy040330.moe> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Masahiro Yamada authored
Previously, *.rpm files were created under $HOME/rpmbuild/, but since commit 8818039f ("kbuild: add ability to make source rpm buildable using koji"), srcrpm-pkg creates the source rpm in the kernel tree because it sets '_srcrpmdir'. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Masahiro Yamada authored
Dennis Gilmore reports that the BuildID is missing in the arm64 vmlinux since commit 994b7ac1 ("arm64: remove special treatment for the link order of head.o"). The issue is that the type of .notes section, which contains the BuildID, changed from NOTES to PROGBITS. Ard Biesheuvel figured out that whichever object gets linked first gets to decide the type of a section. The PROGBITS type is the result of the compiler emitting .note.GNU-stack as PROGBITS rather than NOTE. While Ard provided a fix for arm64, I want to fix this globally because the same issue is happening on riscv since commit 2348e6bf ("riscv: remove special treatment for the link order of head.o"). This problem will happen in general for other architectures if they start to drop unneeded entries from scripts/head-object-list.txt. Discard .note.GNU-stack in include/asm-generic/vmlinux.lds.h. Link: https://lore.kernel.org/lkml/CAABkxwuQoz1CTbyb57n0ZX65eSYiTonFCU8-LCQc=74D=xE=rA@mail.gmail.com/ Fixes: 994b7ac1 ("arm64: remove special treatment for the link order of head.o") Fixes: 2348e6bf ("riscv: remove special treatment for the link order of head.o") Reported-by: Dennis Gilmore <dennis@ausil.us> Suggested-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
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John Harrison authored
In the case where a firmware file is too large (e.g. someone downloaded a web page ASCII dump from github...), the firmware object is released but the pointer is not zerod. If no other firmware file was found then release would be called again leading to a double kfree. Also, the size check was only being applied to the initial firmware load not any of the subsequent attempts. So move the check into a wrapper that is used for all loads. Fixes: 01624116 ("drm/i915/uc: use different ggtt pin offsets for uc loads") Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Alan Previn <alan.previn.teres.alexis@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Matthew Auld <matthew.auld@intel.com> Cc: "Thomas Hellström" <thomas.hellstrom@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221221193031.687266-4-John.C.Harrison@Intel.com (cherry picked from commit 4071d98b) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Matthew Auld authored
The catch-all evict can fail due to object lock contention, since it only goes as far as trylocking the object, due to us already holding the vm->mutex. Doing a full object lock here can deadlock, since the vm->mutex is always our inner lock. Add another execbuf pass which drops the vm->mutex and then tries to grab the object will the full lock, before then retrying the eviction. This should be good enough for now to fix the immediate regression with userspace seeing -ENOSPC from execbuf due to contended object locks during GTT eviction. v2 (Mani) - Also revamp the docs for the different passes. Testcase: igt@gem_ppgtt@shrink-vs-evict-* Fixes: 7e00897b ("drm/i915: Add object locking to i915_gem_evict_for_node and i915_gem_evict_something, v2.") References: https://gitlab.freedesktop.org/drm/intel/-/issues/7627 References: https://gitlab.freedesktop.org/drm/intel/-/issues/7570 References: https://bugzilla.mozilla.org/show_bug.cgi?id=1779558Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Cc: Andrzej Hajda <andrzej.hajda@intel.com> Cc: Mani Milani <mani@chromium.org> Cc: <stable@vger.kernel.org> # v5.18+ Reviewed-by: Mani Milani <mani@chromium.org> Tested-by: Mani Milani <mani@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20221216113456.414183-1-matthew.auld@intel.com (cherry picked from commit 801fa7a8) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Lucas De Marchi authored
The attribute __maybe_unused should remain only until the respective info is not in the pciidlist. The info can't be added together with its definition because that would cause the driver to automatically probe for the device, while it's still not ready for that. However once pciidlist contains it, the attribute can be removed. Fixes: 78353039 ("drm/i915/mtl: Add MeteorLake PCI IDs") Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221214194944.3670344-1-lucas.demarchi@intel.com (cherry picked from commit 50490ce0) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Andrzej Hajda authored
In case of Gen12.50 video and compute engines, TLB_INV registers are masked - to modify one bit, corresponding bit in upper half of the register must be enabled, otherwise nothing happens. Fixes: 77fa9efc ("drm/i915/xehp: Create separate reg definitions for new MCR registers") Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@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/20221214075439.402485-1-andrzej.hajda@intel.com (cherry picked from commit 4d5cf7b1) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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git://git.kernel.dk/linuxLinus Torvalds authored
Pull block fixes from Jens Axboe: "Mostly just NVMe, but also a single fixup for BFQ for a regression that happened during the merge window. In detail: - NVMe pull requests via Christoph: - Fix doorbell buffer value endianness (Klaus Jensen) - Fix Linux vs NVMe page size mismatch (Keith Busch) - Fix a potential use memory access beyong the allocation limit (Keith Busch) - Fix a multipath vs blktrace NULL pointer dereference (Yanjun Zhang) - Fix various problems in handling the Command Supported and Effects log (Christoph Hellwig) - Don't allow unprivileged passthrough of commands that don't transfer data but modify logical block content (Christoph Hellwig) - Add a features and quirks policy document (Christoph Hellwig) - Fix some really nasty code that was correct but made smatch complain (Sagi Grimberg) - Use-after-free regression in BFQ from this merge window (Yu)" * tag 'block-6.2-2022-12-29' of git://git.kernel.dk/linux: nvme-auth: fix smatch warning complaints nvme: consult the CSE log page for unprivileged passthrough nvme: also return I/O command effects from nvme_command_effects nvmet: don't defer passthrough commands with trivial effects to the workqueue nvmet: set the LBCC bit for commands that modify data nvmet: use NVME_CMD_EFFECTS_CSUPP instead of open coding it nvme: fix the NVME_CMD_EFFECTS_CSE_MASK definition docs, nvme: add a feature and quirk policy document nvme-pci: update sqsize when adjusting the queue depth nvme: fix setting the queue depth in nvme_alloc_io_tag_set block, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq nvme: fix multipath crash caused by flush request when blktrace is enabled nvme-pci: fix page size checks nvme-pci: fix mempool alloc size nvme-pci: fix doorbell buffer value endianness
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