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2020-09-19Merge branch 'i2c/for-current' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "Another bunch of fixes for I2C. Jean's i801 patch is a cleanup on top of Volker's i801 patch, but it will make dependency handling much easier if those two go together" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: mxs: use MXS_DMA_CTRL_WAIT4END instead of DMA_CTRL_ACK i2c: mediatek: Send i2c master code at more than 1MHz i2c: mediatek: Fix generic definitions for bus frequency i2c: core: Call i2c_acpi_install_space_handler() before i2c_acpi_register_devices() i2c: i801: Simplify the suspend callback i2c: i801: Fix resume bug i2c: aspeed: Mask IRQ status to relevant bits
2020-09-19RISC-V: Resurrect the MMIO timer implementation for M-mode systemsPalmer Dabbelt
The K210 doesn't implement rdtime in M-mode, and since that's where Linux runs in the NOMMU systems that means we can't use rdtime. The K210 is the only system that anyone is currently running NOMMU or M-mode on, so here we're just inlining the timer read directly. This also adds the CLINT driver as an !MMU dependency, as it's currently the only timer driver availiable for these systems and without it we get a build failure for some configurations. Tested-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-09-18Merge tag 's390-5.9-6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Vasily Gorbik: - Fix order in trace_hardirqs_off_caller() to make locking state consistent even if the IRQ tracer calls into lockdep again. Touches common code. Acked-by Peter Zijlstra. - Correctly handle secure storage violation exception to avoid kernel panic triggered by user space misbehaviour. - Switch the idle->seqcount over to using raw_write_*() to avoid "suspicious RCU usage". - Fix memory leaks on hard unplug in pci code. - Use kvmalloc instead of kmalloc for larger allocations in zcrypt. - Add few missing __init annotations to static functions to avoid section mismatch complains when functions are not inlined. * tag 's390-5.9-6' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390: add 3f program exception handler lockdep: fix order in trace_hardirqs_off_caller() s390/pci: fix leak of DMA tables on hard unplug s390/init: add missing __init annotations s390/zcrypt: fix kmalloc 256k failure s390/idle: fix suspicious RCU usage
2020-09-18i2c: mxs: use MXS_DMA_CTRL_WAIT4END instead of DMA_CTRL_ACKMatthias Schiffer
The driver-specific usage of the DMA_CTRL_ACK flag was replaced with a custom flag in commit ceeeb99cd821 ("dmaengine: mxs: rename custom flag"), but i2c-mxs was not updated to use the new flag, completely breaking I2C transactions using DMA. Fixes: ceeeb99cd821 ("dmaengine: mxs: rename custom flag") Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-09-18i2c: mediatek: Send i2c master code at more than 1MHzQii Wang
The master code needs to being sent when the speed is more than I2C_MAX_FAST_MODE_PLUS_FREQ, not I2C_MAX_FAST_MODE_FREQ in the latest I2C-bus specification and user manual. Signed-off-by: Qii Wang <qii.wang@mediatek.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-09-18i2c: mediatek: Fix generic definitions for bus frequencyQii Wang
The max frequency of mediatek i2c controller driver is I2C_MAX_HIGH_SPEED_MODE_FREQ, not I2C_MAX_FAST_MODE_PLUS_FREQ. Fix it. Fixes: 90224e6468e1 ("i2c: drivers: Use generic definitions for bus frequencies") Reviewed-by: Yingjoe Chen <yingjoe.chen@mediatek.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Qii Wang <qii.wang@mediatek.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-09-18Merge tag 'powerpc-5.9-5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "Some more powerpc fixes for 5.9: - Opt us out of the DEBUG_VM_PGTABLE support for now as it's causing crashes. - Fix a long standing bug in our DMA mask handling that was hidden until recently, and which caused problems with some drivers. - Fix a boot failure on systems with large amounts of RAM, and no hugepage support and using Radix MMU, only seen in the lab. - A few other minor fixes. Thanks to Alexey Kardashevskiy, Aneesh Kumar K.V, Gautham R. Shenoy, Hari Bathini, Ira Weiny, Nick Desaulniers, Shirisha Ganta, Vaibhav Jain, and Vaidyanathan Srinivasan" * tag 'powerpc-5.9-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/papr_scm: Limit the readability of 'perf_stats' sysfs attribute cpuidle: pseries: Fix CEDE latency conversion from tb to us powerpc/dma: Fix dma_map_ops::get_required_mask Revert "powerpc/build: vdso linker warning for orphan sections" powerpc/mm: Remove DEBUG_VM_PGTABLE support on powerpc selftests/powerpc: Skip PROT_SAO test in guests/LPARS powerpc/book3s64/radix: Fix boot failure with large amount of guest memory
2020-09-18Merge tag 'pm-5.9-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "These add a new CPU ID to the RAPL power capping driver and prevent the ACPI processor idle driver from triggering RCU-lockdep complaints. Specifics: - Add support for the Lakefield chip to the RAPL power capping driver (Ricardo Neri). - Modify the ACPI processor idle driver to prevent it from triggering RCU-lockdep complaints which has started to happen after recent changes in that area (Peter Zijlstra)" * tag 'pm-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: processor: Take over RCU-idle for C3-BM idle cpuidle: Allow cpuidle drivers to take over RCU-idle ACPI: processor: Use CPUIDLE_FLAG_TLB_FLUSHED ACPI: processor: Use CPUIDLE_FLAG_TIMER_STOP powercap: RAPL: Add support for Lakefield
2020-09-18Merge tag 'iommu-fixes-v5.9-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull iommu fixes from Joerg Roedel: "Two fixes for the AMD IOMMU driver: - Fix a potential NULL-ptr dereference found by smatch - Fix interrupt remapping when a device is assigned to a guest and AVIC is enabled" * tag 'iommu-fixes-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/amd: Restore IRTE.RemapEn bit for amd_iommu_activate_guest_mode iommu/amd: Fix potential @entry null deref
2020-09-18Merge tag 'mtd/fixes-for-5.9-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux Pull MTD/SPI NOR fixes from Vignesh Raghavendra: "Revert patches that caused non volatile Quad Enable bit to be cleared for certain SPI NOR flashes during module remove or during shutdown, thus breaking backward compatibility" Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> * tag 'mtd/fixes-for-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: Revert "mtd: spi-nor: Add capability to disable flash quad mode" Revert "mtd: spi-nor: Disable the flash quad mode in spi_nor_restore()"
2020-09-18Merge branch 'pm-cpuidle'Rafael J. Wysocki
* pm-cpuidle: ACPI: processor: Take over RCU-idle for C3-BM idle cpuidle: Allow cpuidle drivers to take over RCU-idle ACPI: processor: Use CPUIDLE_FLAG_TLB_FLUSHED ACPI: processor: Use CPUIDLE_FLAG_TIMER_STOP
2020-09-18iommu/amd: Restore IRTE.RemapEn bit for amd_iommu_activate_guest_modeSuravee Suthikulpanit
Commit e52d58d54a32 ("iommu/amd: Use cmpxchg_double() when updating 128-bit IRTE") removed an assumption that modify_irte_ga always set the valid bit, which requires the callers to set the appropriate value for the struct irte_ga.valid bit before calling the function. Similar to the commit 26e495f34107 ("iommu/amd: Restore IRTE.RemapEn bit after programming IRTE"), which is for the function amd_iommu_deactivate_guest_mode(). The same change is also needed for the amd_iommu_activate_guest_mode(). Otherwise, this could trigger IO_PAGE_FAULT for the VFIO based VMs with AVIC enabled. Fixes: e52d58d54a321 ("iommu/amd: Use cmpxchg_double() when updating 128-bit IRTE") Reported-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Tested-by: Maxim Levitsky <mlevitsk@redhat.com> Reviewed-by: Joao Martins <joao.m.martins@oracle.com> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Cc: Joao Martins <joao.m.martins@oracle.com> Link: https://lore.kernel.org/r/20200916111720.43913-1-suravee.suthikulpanit@amd.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-09-18iommu/amd: Fix potential @entry null derefJoao Martins
After commit 26e495f34107 ("iommu/amd: Restore IRTE.RemapEn bit after programming IRTE"), smatch warns: drivers/iommu/amd/iommu.c:3870 amd_iommu_deactivate_guest_mode() warn: variable dereferenced before check 'entry' (see line 3867) Fix this by moving the @valid assignment to after @entry has been checked for NULL. Fixes: 26e495f34107 ("iommu/amd: Restore IRTE.RemapEn bit after programming IRTE") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Joao Martins <joao.m.martins@oracle.com> Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Link: https://lore.kernel.org/r/20200910171621.12879-1-joao.m.martins@oracle.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-09-17Merge tag 'drm-fixes-2020-09-18' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm fixes from Dave Airlie: "A bunch of small fixes, some of the i915 ones have been out for a while and got better commit msg explaining some better reasoning behind them (hopefully this trend continues). Otherwise there a few AMD related ones mostly small, one radeon PLL regression fix and a bunch of small mediatek fixes. amdgpu: - Sienna Cichlid fixes - Navy Flounder fixes - DC fixes amdkfd: - Fix a GPU reset crash - Fix a memory leak radeon: - Revert a PLL fix that broke other boards i915: - Avoid exposing a partially constructed context - Use RCU instead of mutex for context termination list iteration - Avoid data race reported by KCSAN - Filter wake_flags passed to default_wake_function mediatek: - Fix scrolling of panel - Remove duplicated include - Use CPU when fail to get cmdq event - Add missing put_device() call" * tag 'drm-fixes-2020-09-18' of git://anongit.freedesktop.org/drm/drm: (21 commits) drm/amd/display: Don't log hdcp module warnings in dmesg drm/amdgpu: declare ta firmware for navy_flounder drm/mediatek: Add missing put_device() call in mtk_hdmi_dt_parse_pdata() drm/mediatek: Add missing put_device() call in mtk_drm_kms_init() drm/mediatek: Add exception handing in mtk_drm_probe() if component init fail drm/mediatek: Add missing put_device() call in mtk_ddp_comp_init() drm/mediatek: Use CPU when fail to get cmdq event drm/mediatek: Remove duplicated include drm/i915: Filter wake_flags passed to default_wake_function drm/i915: Be wary of data races when reading the active execlists drm/i915/gem: Reduce context termination list iteration guard to RCU drm/i915/gem: Delay tracking the GEM context until it is registered drm/amdgpu/dc: Require primary plane to be enabled whenever the CRTC is drm/radeon: revert "Prefer lower feedback dividers" drm/amdgpu: Include sienna_cichlid in USBC PD FW support. drm/amd/display: update nv1x stutter latencies drm/amd/display: Don't use DRM_ERROR() for DTM add topology drm/amd/pm: support runtime pptable update for sienna_cichlid etc. drm/amdkfd: fix a memory leak issue drm/kfd: fix a system crash issue during GPU recovery ...
2020-09-18Merge tag 'mediatek-drm-fixes-5.9' of ↵Dave Airlie
https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux into drm-fixes Mediatek DRM Fixes for Linux 5.9 1. Fix scrolling of panel 2. Remove duplicated include 3. Use CPU when fail to get cmdq event 4. Add missing put_device() call Signed-off-by: Dave Airlie <airlied@redhat.com> From: Chun-Kuang Hu <chunkuang.hu@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20200916231724.30571-1-chunkuang.hu@kernel.org
2020-09-18Merge tag 'drm-intel-fixes-2020-09-17' of ↵Dave Airlie
ssh://git.freedesktop.org/git/drm/drm-intel into drm-fixes drm/i915 fixes for v5.9-rc6: - Avoid exposing a partially constructed context - Use RCU instead of mutex for context termination list iteration - Avoid data race reported by KCSAN - Filter wake_flags passed to default_wake_function Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/87y2l8vlj3.fsf@intel.com
2020-09-18Merge tag 'amd-drm-fixes-5.9-2020-09-17' of ↵Dave Airlie
git://people.freedesktop.org/~agd5f/linux into drm-fixes amd-drm-fixes-5.9-2020-09-17: amdgpu: - Sienna Cichlid fixes - Navy Flounder fixes - DC fixes amdkfd: - Fix a GPU reset crash - Fix a memory leak radeon: - Revert a PLL fix that broke other boards Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200917043818.3717-1-alexander.deucher@amd.com
2020-09-17i2c: core: Call i2c_acpi_install_space_handler() before ↵Hans de Goede
i2c_acpi_register_devices() Some ACPI i2c-devices _STA method (which is used to detect if the device is present) use autodetection code which probes which device is present over i2c. This requires the I2C ACPI OpRegion handler to be registered before we enumerate i2c-clients under the i2c-adapter. This fixes the i2c touchpad on the Lenovo ThinkBook 14-IIL and ThinkBook 15 IIL not getting an i2c-client instantiated and thus not working. BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1842039 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-09-17usblp: fix race between disconnect() and read()Oliver Neukum
read() needs to check whether the device has been disconnected before it tries to talk to the device. Signed-off-by: Oliver Neukum <oneukum@suse.com> Reported-by: syzbot+be5b5f86a162a6c281e6@syzkaller.appspotmail.com Link: https://lore.kernel.org/r/20200917103427.15740-1-oneukum@suse.com Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-17ehci-hcd: Move include to keep CRC stableQuentin Perret
The CRC calculation done by genksyms is triggered when the parser hits EXPORT_SYMBOL*() macros. At this point, genksyms recursively expands the types of the function parameters, and uses that as the input for the CRC calculation. In the case of forward-declared structs, the type expands to 'UNKNOWN'. Following this, it appears that the result of the expansion of each type is cached somewhere, and seems to be re-used when/if the same type is seen again for another exported symbol in the same C file. Unfortunately, this can cause CRC 'stability' issues when a struct definition becomes visible in the middle of a C file. For example, let's assume code with the following pattern: struct foo; int bar(struct foo *arg) { /* Do work ... */ } EXPORT_SYMBOL_GPL(bar); /* This contains struct foo's definition */ #include "foo.h" int baz(struct foo *arg) { /* Do more work ... */ } EXPORT_SYMBOL_GPL(baz); Here, baz's CRC will be computed using the expansion of struct foo that was cached after bar's CRC calculation ('UNKOWN' here). But if EXPORT_SYMBOL_GPL(bar) is removed from the file (because of e.g. symbol trimming using CONFIG_TRIM_UNUSED_KSYMS), struct foo will be expanded late, during baz's CRC calculation, which now has visibility over the full struct definition, hence resulting in a different CRC for baz. The proper fix for this certainly is in genksyms, but that will take me some time to get right. In the meantime, we have seen one occurrence of this in the ehci-hcd code which hits this problem because of the way it includes C files halfway through the code together with an unlucky mix of symbol trimming. In order to workaround this, move the include done in ehci-hub.c early in ehci-hcd.c, hence making sure the struct definitions are visible to the entire file. This improves CRC stability of the ehci-hcd exports even when symbol trimming is enabled. Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@vger.kernel.org> Signed-off-by: Quentin Perret <qperret@google.com> Link: https://lore.kernel.org/r/20200916171825.3228122-1-qperret@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-17drm/amd/display: Don't log hdcp module warnings in dmesgBhawanpreet Lakha
[Why] DTM topology updates happens by default now. This results in DTM warnings when hdcp is not even being enabled. This spams the dmesg and doesn't effect normal display functionality so it is better to log it using DRM_DEBUG_KMS() [How] Change the DRM_WARN() to DRM_DEBUG_KMS() Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-17drm/amdgpu: declare ta firmware for navy_flounderJiansong Chen
The firmware provided via MODULE_FIRMWARE appears in the module information. External tools(eg. dracut) may use the list of fw files to include them as appropriate in an initramfs, thus missing declaration will lead to request firmware failure in boot time. Signed-off-by: Jiansong Chen <Jiansong.Chen@amd.com> Reviewed-by: Tianci Yin <tianci.yin@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-17drm/mediatek: Add missing put_device() call in mtk_hdmi_dt_parse_pdata()Yu Kuai
if of_find_device_by_node() succeed, mtk_drm_kms_init() doesn't have a corresponding put_device(). Thus add jump target to fix the exception handling for this function implementation. Fixes: 8f83f26891e1 ("drm/mediatek: Add HDMI support") Signed-off-by: Yu Kuai <yukuai3@huawei.com> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2020-09-17drm/mediatek: Add missing put_device() call in mtk_drm_kms_init()Yu Kuai
if of_find_device_by_node() succeed, mtk_drm_kms_init() doesn't have a corresponding put_device(). Thus add jump target to fix the exception handling for this function implementation. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Yu Kuai <yukuai3@huawei.com> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2020-09-17drm/mediatek: Add exception handing in mtk_drm_probe() if component init failYu Kuai
mtk_ddp_comp_init() is called in a loop in mtk_drm_probe(), if it fail, previous successive init component is not proccessed. Thus uninitialize valid component and put their device if component init failed. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Yu Kuai <yukuai3@huawei.com> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2020-09-17drm/mediatek: Add missing put_device() call in mtk_ddp_comp_init()Yu Kuai
if of_find_device_by_node() succeed, mtk_ddp_comp_init() doesn't have a corresponding put_device(). Thus add put_device() to fix the exception handling for this function implementation. Fixes: d0afe37f5209 ("drm/mediatek: support CMDQ interface in ddp component") Signed-off-by: Yu Kuai <yukuai3@huawei.com> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2020-09-17drm/mediatek: Use CPU when fail to get cmdq eventChun-Kuang Hu
Even though cmdq client is created successfully, without the cmdq event, cmdq could not work correctly, so use CPU when fail to get cmdq event. Fixes: 60fa8c13ab1a ("drm/mediatek: Move gce event property to mutex device node") Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2020-09-17drm/mediatek: Remove duplicated includeWang Hai
Remove mtk_drm_ddp.h which is included more than once Fixes: 9aef5867c86c ("drm/mediatek: drop use of drmP.h") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wang Hai <wanghai38@huawei.com> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2020-09-16Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk driver fixes from Stephen Boyd: "A handful of clk driver fixes. Mostly they're for error paths or improper memory allocations sizes. Nothing as exciting as a wildfire" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: qcom: lpass: Correct goto target in lpass_core_sc7180_probe() clk: versatile: Add of_node_put() before return statement clk: bcm: dvp: Select the reset framework clk: rockchip: Fix initialization of mux_pll_src_4plls_p clk: davinci: Use the correct size when allocating memory
2020-09-16ACPI: processor: Take over RCU-idle for C3-BM idlePeter Zijlstra
The C3 BusMaster idle code takes lock in a number of places, some deep inside the ACPI code. Instead of wrapping it all in RCU_NONIDLE, have the driver take over RCU-idle duty and avoid flipping RCU state back and forth a lot. ( by marking 'C3 && bm_check' as RCU_IDLE, we _must_ call enter_bm() for that combination, otherwise we'll loose RCU-idle, this requires shuffling some code around ) Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-16cpuidle: Allow cpuidle drivers to take over RCU-idlePeter Zijlstra
Some drivers have to do significant work, some of which relies on RCU still being active. Instead of using RCU_NONIDLE in the drivers and flipping RCU back on, allow drivers to take over RCU-idle duty. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-16ACPI: processor: Use CPUIDLE_FLAG_TLB_FLUSHEDPeter Zijlstra
Make acpi_processor_idle() use the generic TLB flushing code. This again removes RCU usage after rcu_idle_enter(). (XXX make every C3 invalidate TLBs, not just C3-BM) Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-16ACPI: processor: Use CPUIDLE_FLAG_TIMER_STOPPeter Zijlstra
Make acpi_processor_idle use the common broadcast code, there's no reason not to. This also removes some RCU usage after rcu_idle_enter(). Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reported-by: Borislav Petkov <bp@suse.de> Tested-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-16fbcon: Fix user font detection test at fbcon_resize().Tetsuo Handa
syzbot is reporting OOB read at fbcon_resize() [1], for commit 39b3cffb8cf31117 ("fbcon: prevent user font height or width change from causing potential out-of-bounds access") is by error using registered_fb[con2fb_map[vc->vc_num]]->fbcon_par->p->userfont (which was set to non-zero) instead of fb_display[vc->vc_num].userfont (which remains zero for that display). We could remove tricky userfont flag [2], for we can determine it by comparing address of the font data and addresses of built-in font data. But since that commit is failing to fix the original OOB read [3], this patch keeps the change minimal in case we decide to revert altogether. [1] https://syzkaller.appspot.com/bug?id=ebcbbb6576958a496500fee9cf7aa83ea00b5920 [2] https://syzkaller.appspot.com/text?tag=Patch&x=14030853900000 [3] https://syzkaller.appspot.com/bug?id=6fba8c186d97cf1011ab17660e633b1cc4e080c9 Reported-by: syzbot <syzbot+b38b1ef6edf0c74a8d97@syzkaller.appspotmail.com> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Fixes: 39b3cffb8cf31117 ("fbcon: prevent user font height or width change from causing potential out-of-bounds access") Cc: George Kennedy <george.kennedy@oracle.com> Link: https://lore.kernel.org/r/f6e3e611-8704-1263-d163-f52c906a4f06@I-love.SAKURA.ne.jp Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-16powercap: RAPL: Add support for LakefieldRicardo Neri
Simply add Lakefield model ID. No additional changes are needed. Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com> [ rjw: Minor subject edit ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-16serial: 8250_pci: Add Realtek 816a and 816bTobias Diedrich
These serial ports are exposed by the OOB-management-engine on RealManage-enabled network cards (e.g. AMD DASH enabled systems using Realtek cards). Because these have 3 BARs, they fail the "num_iomem <= 1" check in serial_pci_guess_board. I've manually checked the two IOMEM regions and BAR 2 doesn't seem to respond to reads, but BAR 4 seems to be an MMIO version of the IO ports (untested). With this change, the ports are detected: 0000:02:00.1: ttyS0 at I/O 0x2200 (irq = 82, base_baud = 115200) is a 16550A 0000:02:00.2: ttyS1 at I/O 0x2100 (irq = 55, base_baud = 115200) is a 16550A lspci output: 02:00.1 0700: 10ec:816a (rev 0e) (prog-if 02 [16550]) Subsystem: 17aa:5082 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort+ <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin B routed to IRQ 82 IOMMU group: 11 Region 0: I/O ports at 2200 [size=256] Region 2: Memory at fd715000 (64-bit, non-prefetchable) [size=4K] Region 4: Memory at fd704000 (64-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+ Address: 0000000000000000 Data: 0000 Capabilities: [70] Express (v2) Endpoint, MSI 01 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 <64us ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 0.000W DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr+ NonFatalErr- FatalErr- UnsupReq+ AuxPwr+ TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s unlimited, L1 <64us ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+ LnkCtl: ASPM L1 Enabled; RCB 64 bytes, Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s (ok), Width x1 (ok) TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range ABCD, TimeoutDis+ NROPrPrP- LTR+ 10BitTagComp- 10BitTagReq- OBFF Via message/WAKE#, ExtFmt- EETLPPrefix- EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit- FRS- TPHComp- ExtTPHComp- AtomicOpsCap: 32bit- 64bit- 128bitCAS- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- OBFF Disabled, AtomicOpsCtl: ReqEn- LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete- EqualizationPhase1- EqualizationPhase2- EqualizationPhase3- LinkEqualizationRequest- Retimer- 2Retimers- CrosslinkRes: unsupported Capabilities: [b0] MSI-X: Enable- Count=4 Masked- Vector table: BAR=4 offset=00000000 PBA: BAR=4 offset=00000800 Capabilities: [d0] Vital Product Data Not readable Capabilities: [100 v2] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+ CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+ AERCap: First Error Pointer: 00, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn- MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap- HeaderLog: 00000000 00000000 00000000 00000000 Capabilities: [160 v1] Device Serial Number 00-00-00-00-00-00-00-00 Capabilities: [170 v1] Latency Tolerance Reporting Max snoop latency: 0ns Max no snoop latency: 0ns Capabilities: [178 v1] L1 PM Substates L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+ PortCommonModeRestoreTime=150us PortTPowerOnTime=150us L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1- T_CommonMode=0us LTR1.2_Threshold=0ns L1SubCtl2: T_PwrOn=10us 02:00.2 0700: 10ec:816b (rev 0e) [...same...] Signed-off-by: Tobias Diedrich <tobiasdiedrich@gmail.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200914173628.GA22508@yamamaya.is-a-geek.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-16serial: core: fix console port-lock regressionJohan Hovold
Fix the port-lock initialisation regression introduced by commit a3cb39d258ef ("serial: core: Allow detach and attach serial device for console") by making sure that the lock is again initialised during console setup. The console may be registered before the serial controller has been probed in which case the port lock needs to be initialised during console setup by a call to uart_set_options(). The console-detach changes introduced a regression in several drivers by effectively removing that initialisation by not initialising the lock when the port is used as a console (which is always the case during console setup). Add back the early lock initialisation and instead use a new console-reinit flag to handle the case where a console is being re-attached through sysfs. The question whether the console-detach interface should have been added in the first place is left for another discussion. Note that the console-enabled check in uart_set_options() is not redundant because of kgdboc, which can end up reinitialising an already enabled console (see commit 42b6a1baa3ec ("serial_core: Don't re-initialize a previously initialized spinlock.")). Fixes: a3cb39d258ef ("serial: core: Allow detach and attach serial device for console") Cc: stable <stable@vger.kernel.org> # 5.7 Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20200909143101.15389-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-16serial: core: fix port-lock initialisationJohan Hovold
Commit f743061a85f5 ("serial: core: Initialise spin lock before use in uart_configure_port()") tried to work around a breakage introduced by commit a3cb39d258ef ("serial: core: Allow detach and attach serial device for console") by adding a second initialisation of the port lock when registering the port. As reported by the build robots [1], this doesn't really solve the regression introduced by the console-detach changes and also adds a second redundant initialisation of the lock for normal ports. Start cleaning up this mess by removing the redundant initialisation and making sure that the port lock is again initialised once-only for ports that aren't already in use as a console. [1] https://lore.kernel.org/r/20200802054852.GR23458@shao2-debian Fixes: f743061a85f5 ("serial: core: Initialise spin lock before use in uart_configure_port()") Fixes: a3cb39d258ef ("serial: core: Allow detach and attach serial device for console") Cc: stable <stable@vger.kernel.org> # 5.7 Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20200909143101.15389-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-16usb: typec: intel_pmc_mux: Handle SCU IPC error conditionsMadhusudanarao Amara
Check and return if there are errors. The response bits are valid only on no errors. Fixes: b7404a29cd3d ("usb: typec: intel_pmc_mux: Definitions for response status bits") Signed-off-by: Madhusudanarao Amara <madhusudanarao.amara@intel.com> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20200916091102.27118-4-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-16USB: quirks: Add USB_QUIRK_IGNORE_REMOTE_WAKEUP quirk for BYD zhaoxin notebookPenghao
Add a USB_QUIRK_IGNORE_REMOTE_WAKEUP quirk for the BYD zhaoxin notebook. This notebook come with usb touchpad. And we would like to disable touchpad wakeup on this notebook by default. Signed-off-by: Penghao <penghao@uniontech.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200907023026.28189-1-penghao@uniontech.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-16USB: UAS: fix disconnect by unplugging a hubOliver Neukum
The SCSI layer can go into an ugly loop if you ignore that a device is gone. You need to report an error in the command rather than in the return value of the queue method. We need to specifically check for ENODEV. The issue goes back to the introduction of the driver. Fixes: 115bb1ffa54c3 ("USB: Add UAS driver") Signed-off-by: Oliver Neukum <oneukum@suse.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200916094026.30085-2-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-16usb: typec: ucsi: Prevent mode overrunHeikki Krogerus
Sometimes the embedded controller firmware does not terminate the list of alternate modes that the partner supports in its response to the GET_ALTERNATE_MODES command. Instead the firmware returns the supported alternate modes over and over again until the driver stops requesting them. If that happens, the number of modes for each alternate mode will exceed the maximum 6 that is defined in the USB Power Delivery specification. Making sure that can't happen by adding a check for it. This fixes NULL pointer dereference that is caused by the overrun. Fixes: ad74b8649beaf ("usb: typec: ucsi: Preliminary support for alternate modes") Cc: stable@vger.kernel.org Reported-by: Zwane Mwaikambo <zwanem@gmail.com> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20200916090034.25119-3-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-16usb: typec: ucsi: acpi: Increase command completion timeout valueHeikki Krogerus
UCSI specification quite clearly states that if a command can't be completed in 10ms, the firmware must notify about BUSY condition. Unfortunately almost none of the platforms (the firmware on them) generate the BUSY notification even if a command can't be completed in time. The driver already considered that, and used a timeout value of 5 seconds, but processing especially the alternate mode discovery commands takes often considerable amount of time from the firmware, much more than the 5 seconds. That happens especially after bootup when devices are already connected to the USB Type-C connector. For now on those platforms the alternate mode discovery has simply failed because of the timeout. To improve the situation, increasing the timeout value for the command completion to 1 minute. That should give enough time for even the slowest firmware to process the commands. Fixes: f56de278e8ec ("usb: typec: ucsi: acpi: Move to the new API") Cc: stable@vger.kernel.org Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20200916090034.25119-2-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-16drm/i915: Filter wake_flags passed to default_wake_functionChris Wilson
(NOTE: This is the minimal backportable fix, a full fix is being developed at https://patchwork.freedesktop.org/patch/388048/) The flags passed to the wait_entry.func are passed onwards to try_to_wake_up(), which has a very particular interpretation for its wake_flags. In particular, beyond the published WF_SYNC, it has a few internal flags as well. Since we passed the fence->error down the chain via the flags argument, these ended up in the default_wake_function confusing the kernel/sched. Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/2110 Fixes: ef4688497512 ("drm/i915: Propagate fence errors") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Matthew Auld <matthew.auld@intel.com> Cc: <stable@vger.kernel.org> # v5.4+ Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200728152144.1100-1-chris@chris-wilson.co.uk Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> [Joonas: Rebased and reordered into drm-intel-gt-next branch] [Joonas: Added a note and link about more complete fix] Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> (cherry picked from commit f4b3c395540aa3d4f5a6275c5bdd83ab89034806) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2020-09-16drm/i915: Be wary of data races when reading the active execlistsChris Wilson
To implement preempt-to-busy (and so efficient timeslicing and best utilization of the hardware submission ports) we let the GPU run asynchronously in respect to the ELSP submission queue. This created challenges in keeping and accessing the driver state mirroring the asynchronous GPU execution. The latest occurence of this was spotted by KCSAN: [ 1413.563200] BUG: KCSAN: data-race in __await_execution+0x217/0x370 [i915] [ 1413.563221] [ 1413.563236] race at unknown origin, with read to 0xffff88885bb6c478 of 8 bytes by task 9654 on cpu 1: [ 1413.563548] __await_execution+0x217/0x370 [i915] [ 1413.563891] i915_request_await_dma_fence+0x4eb/0x6a0 [i915] [ 1413.564235] i915_request_await_object+0x421/0x490 [i915] [ 1413.564577] i915_gem_do_execbuffer+0x29b7/0x3c40 [i915] [ 1413.564967] i915_gem_execbuffer2_ioctl+0x22f/0x5c0 [i915] [ 1413.564998] drm_ioctl_kernel+0x156/0x1b0 [ 1413.565022] drm_ioctl+0x2ff/0x480 [ 1413.565046] __x64_sys_ioctl+0x87/0xd0 [ 1413.565069] do_syscall_64+0x4d/0x80 [ 1413.565094] entry_SYSCALL_64_after_hwframe+0x44/0xa9 To complicate matters, we have to both avoid the read tearing of *active and avoid any write tearing as perform the pending[] -> inflight[] promotion of the execlists. This is because we cannot rely on the memcpy doing u64 aligned copies on all kernels/platforms and so we opt to open-code it with explicit WRITE_ONCE annotations to satisfy KCSAN. v2: When in doubt, write the same comment again. v3: Expanded commit message. Fixes: b55230e5e800 ("drm/i915: Check for awaits on still currently executing requests") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200716142207.13003-1-chris@chris-wilson.co.uk Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> [Joonas: Rebased and reordered into drm-intel-gt-next branch] [Joonas: Added expanded commit message from Tvrtko and Chris] Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> (cherry picked from commit b4d9145b0154f8c71dafc2db5fd445f1f3db9426) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2020-09-16drm/i915/gem: Reduce context termination list iteration guard to RCUChris Wilson
As we now protect the timeline list using RCU, we can drop the timeline->mutex for guarding the list iteration during context close, as we are searching for an inflight request. Any new request will see the context is banned and not be submitted. In doing so, pull the checks for a concurrent submission of the request (notably the i915_request_completed()) under the engine spinlock, to fully serialise with __i915_request_submit()). That is in the case of preempt-to-busy where the request may be completed during the __i915_request_submit(), we need to be careful that we sample the request status after serialising so that we don't miss the request the engine is actually submitting. Fixes: 4a3174152147 ("drm/i915/gem: Refine occupancy test in kill_context()") References: d22d2d073ef8 ("drm/i915: Protect i915_request_await_start from early waits") # rcu protection of timeline->requests References: https://gitlab.freedesktop.org/drm/intel/-/issues/1622 References: https://gitlab.freedesktop.org/drm/intel/-/issues/2158 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200806105954.7766-1-chris@chris-wilson.co.uk Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> (cherry picked from commit 736e785f9b28cd9ef2d16a80960a04fd00e64b22) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2020-09-16drm/i915/gem: Delay tracking the GEM context until it is registeredChris Wilson
Avoid exposing a partially constructed context by deferring the list_add() from the initial construction to the end of registration. Otherwise, if we peek into the list of contexts from inside debugfs, we may see the partially constructed context and chase down some dangling incomplete pointers. Reported-by: CQ Tang <cq.tang@intel.com> Fixes: 3aa9945a528e ("drm/i915: Separate GEM context construction and registration to userspace") References: f6e8aa387171 ("drm/i915: Report the number of closed vma held by each context in debugfs") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: CQ Tang <cq.tang@intel.com> Cc: <stable@vger.kernel.org> # v5.2+ Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200730092856.23615-1-chris@chris-wilson.co.uk Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> (cherry picked from commit eb4dedae920a07c485328af3da2202ec5184fb17) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2020-09-15Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fix from James Bottomley: "Just one fix in libsas for a resource leak in an error path" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: libsas: Fix error path in sas_notify_lldd_dev_found()
2020-09-15Merge tag 'hyperv-fixes-signed' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull hyperv fixes from Wei Liu: "Two patches from Michael and Dexuan to fix vmbus hanging issues" * tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: Drivers: hv: vmbus: Add timeout to vmbus_wait_for_unload Drivers: hv: vmbus: hibernation: do not hang forever in vmbus_bus_resume()
2020-09-15drm/amdgpu/dc: Require primary plane to be enabled whenever the CRTC isMichel Dänzer
Don't check drm_crtc_state::active for this either, per its documentation in include/drm/drm_crtc.h: * Hence drivers must not consult @active in their various * &drm_mode_config_funcs.atomic_check callback to reject an atomic * commit. atomic_remove_fb disables the CRTC as needed for disabling the primary plane. This prevents at least the following problems if the primary plane gets disabled (e.g. due to destroying the FB assigned to the primary plane, as happens e.g. with mutter in Wayland mode): * The legacy cursor ioctl returned EINVAL for a non-0 cursor FB ID (which enables the cursor plane). * If the cursor plane was enabled, changing the legacy DPMS property value from off to on returned EINVAL. v2: * Minor changes to code comment and commit log, per review feedback. GitLab: https://gitlab.gnome.org/GNOME/mutter/-/issues/1108 GitLab: https://gitlab.gnome.org/GNOME/mutter/-/issues/1165 GitLab: https://gitlab.gnome.org/GNOME/mutter/-/issues/1344 Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Michel Dänzer <mdaenzer@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>