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2019-08-01drm/msm: Annotate intentional switch statement fall throughsJordan Crouse
Explicitly mark intentional fall throughs in switch statements to keep -Wimplicit-fallthrough from complaining. Reviewed-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/1564073588-27386-1-git-send-email-jcrouse@codeaurora.org
2019-08-01drm/msm: add support for per-CRTC max_vblank_count on mdp5Brian Masney
The mdp5 drm/kms driver currently does not work on command-mode DSI panels due to 'vblank wait timed out' errors. This causes a latency of seconds, or tens of seconds in some cases, before content is shown on the panel. This hardware does not have the something that we can use as a frame counter available when running in command mode, so we need to fall back to using timestamps by setting the max_vblank_count to zero. This can be done on a per-CRTC basis, so the convert mdp5 to use drm_crtc_set_max_vblank_count(). This change was tested on a LG Nexus 5 (hammerhead) phone. Suggested-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com> Reviewed-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com> Signed-off-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190531094619.31704-3-masneyb@onstation.org
2019-08-01arm64/mm: fix variable 'pud' set but not usedQian Cai
GCC throws a warning, arch/arm64/mm/mmu.c: In function 'pud_free_pmd_page': arch/arm64/mm/mmu.c:1033:8: warning: variable 'pud' set but not used [-Wunused-but-set-variable] pud_t pud; ^~~ because pud_table() is a macro and compiled away. Fix it by making it a static inline function and for pud_sect() as well. Signed-off-by: Qian Cai <cai@lca.pw> Signed-off-by: Will Deacon <will@kernel.org>
2019-08-01arm64: Remove unneeded rcu_read_lock from debug handlersMasami Hiramatsu
Remove rcu_read_lock()/rcu_read_unlock() from debug exception handlers since we are sure those are not preemptible and interrupts are off. Acked-by: Paul E. McKenney <paulmck@linux.ibm.com> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Will Deacon <will@kernel.org>
2019-08-01arm64: unwind: Prohibit probing on return_address()Masami Hiramatsu
Prohibit probing on return_address() and subroutines which is called from return_address(), since the it is invoked from trace_hardirqs_off() which is also kprobe blacklisted. Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Will Deacon <will@kernel.org>
2019-08-01arm64: Lower priority mask for GIC_PRIO_IRQONJulien Thierry
On a system with two security states, if SCR_EL3.FIQ is cleared, non-secure IRQ priorities get shifted to fit the secure view but priority masks aren't. On such system, it turns out that GIC_PRIO_IRQON masks the priority of normal interrupts, which obviously ends up in a hang. Increase GIC_PRIO_IRQON value (i.e. lower priority) to make sure interrupts are not blocked by it. Cc: Oleg Nesterov <oleg@redhat.com> Fixes: bd82d4bd21880b7c ("arm64: Fix incorrect irqflag restore for priority masking") Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Julien Thierry <julien.thierry.kdev@gmail.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> [will: fixed Fixes: tag] Signed-off-by: Will Deacon <will@kernel.org>
2019-08-01Merge tag 'mmc-v5.3-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC fixes from Ulf Hansson: - sdhci-sprd: Add a missing pm_runtime_put_noidle() to fix deferred probe - dw_mmc: Fix occasional hang after tuning on eMMC - meson-mx-sdio: Fix misuse of GENMASK macro - mmc_spi: Fix CRC problems for writes by using BDI_CAP_STABLE_WRITES * tag 'mmc-v5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: mmc_spi: Enable stable writes mmc: meson-mx-sdio: Fix misuse of GENMASK macro mmc: dw_mmc: Fix occasional hang after tuning on eMMC mmc: host: sdhci-sprd: Fix the missing pm_runtime_put_noidle()
2019-08-01Merge tag 'gpio-v5.3-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO fixes from Linus Walleij: "Three GPIO fixes, all touching the core, so quite important: - Fix the request of active low GPIO line events. - Don't issue WARN() stuff on NULL descriptors if the GPIOLIB is disabled. - Preserve the descriptor flags when setting the initial direction on lines" * tag 'gpio-v5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpiolib: Preserve desc->flags when setting state gpio: don't WARN() on NULL descs if gpiolib is disabled gpiolib: fix incorrect IRQ requesting of an active-low lineevent
2019-08-01drm/bochs: Use shadow buffer for bochs framebuffer consoleThomas Zimmermann
The bochs driver (and virtual hardware) requires buffer objects to reside in video ram to display them to the screen. So it can not display the framebuffer console because the respective buffer object is permanently pinned in system memory. Using a shadow buffer for the console solves this problem. The console emulation will pin the buffer object only during updates from the shadow buffer. Otherwise, the bochs driver can freely relocated the buffer between system memory and video ram. v2: * select shadow FB via struct drm_mode_config.prefer_shadow_fbdev Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/315833/ Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-08-01drm/fb-helper: Instanciate shadow FB if configured in device's mode_configThomas Zimmermann
Generic framebuffer emulation uses a shadow buffer for framebuffers with dirty() function. If drivers want to use the shadow FB without such a function, they can now set prefer_shadow or prefer_shadow_fbdev in their mode_config structures. The former flag is exported to userspace, the latter flag is fbdev-only. v3: * only schedule dirty worker if fbdev uses shadow fb * test shadow fb settings with boolean operators * use bool for struct drm_mode_config.prefer_shadow_fbdev * fix documentation comments Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Tested-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/315834/ Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-08-01drm/fb-helper: Map DRM client buffer only when requiredThomas Zimmermann
This patch changes DRM clients to not map the buffer by default. The buffer, like any buffer object, should be mapped and unmapped when needed. An unmapped buffer object can be evicted to system memory and does not consume video ram until displayed. This allows to use generic fbdev emulation with drivers for low-memory devices, such as ast and mgag200. This change affects the generic framebuffer console. HW-based consoles map their console buffer once and keep it mapped. Userspace can mmap this buffer into its address space. The shadow-buffered framebuffer console only needs the buffer object to be mapped during updates. While not being updated from the shadow buffer, the buffer object can remain unmapped. Userspace will always mmap the shadow buffer. v2: * change DRM client to not map buffer by default * manually map client buffer for fbdev with HW framebuffer Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/315830/ Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-08-01drm/client: Support unmapping of DRM client buffersThomas Zimmermann
DRM clients, such as the fbdev emulation, have their buffer objects mapped by default. Mapping a buffer implicitly prevents its relocation. Hence, the buffer may permanently consume video memory while it's allocated. This is a problem for drivers of low-memory devices, such as ast, mgag200 or older framebuffer hardware, which will then not have enough memory to display other content (e.g., X11). This patch introduces drm_client_buffer_vmap() and _vunmap(). Internal DRM clients can use these functions to unmap and remap buffer objects as needed. There's no reference counting for vmap operations. Callers are expected to either keep buffers mapped (as it is now), or call vmap and vunmap in pairs around code that accesses the mapped memory. v2: * remove several duplicated NULL-pointer checks v3: * style and typo fixes Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/315831/ Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-08-01i2c: iproc: Fix i2c master read more than 63 bytesRayagonda Kokatanur
Use SMBUS_MASTER_DATA_READ.MASTER_RD_STATUS bit to check for RX FIFO empty condition because SMBUS_MASTER_FIFO_CONTROL.MASTER_RX_PKT_COUNT is not updated for read >= 64 bytes. This fixes the issue when trying to read from the I2C slave more than 63 bytes. Fixes: c24b8d574b7c ("i2c: iproc: Extend I2C read up to 255 bytes") Cc: stable@kernel.org Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com> Reviewed-by: Ray Jui <ray.jui@broadcom.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-08-01parisc: Add archclean Makefile targetJames Bottomley
Apparently we don't have an archclean target in our arch/parisc/Makefile, so files in there never get cleaned out by make mrproper. This, in turn means that the sizes.h file in arch/parisc/boot/compressed never gets removed and worse, when you transition to an O=build/parisc[64] build model it overrides the generated file. The upshot being my bzImage was building with a SZ_end that was too small. I fixed it by making mrproper clean everything. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: stable@vger.kernel.org # v4.20+ Signed-off-by: Helge Deller <deller@gmx.de>
2019-08-01drm/i915/oa: add content to MakefileJani Nikula
Apparently the empty Makefile has caused some confusion. Add the subdir-cc-flags-y as in 7fcc7ca549d4 ("drm/i915: add header search path to subdir Makefiles") which should be useful. The generated headers still aren't self-contained, so can't add that. References: http://marc.info/?i=80bf2204-558a-6d3f-c493-bf17b891fc8a@infradead.org Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190730113432.22146-1-jani.nikula@intel.com
2019-08-01parisc: Strip debug info from kernel before creating compressed vmlinuzHelge Deller
Same as on x86-64, strip the .comment, .note and debug sections from the Linux kernel before creating the compressed image for the boot loader. Reported-by: James Bottomley <James.Bottomley@HansenPartnership.com> Reported-by: Sven Schnelle <svens@stackframe.org> Cc: stable@vger.kernel.org # v4.20+ Signed-off-by: Helge Deller <deller@gmx.de>
2019-08-01parisc: Fix build of compressed kernel even with debug enabledHelge Deller
With debug info enabled (CONFIG_DEBUG_INFO=y) the resulting vmlinux may get that huge that we need to increase the start addresss for the decompression text section otherwise one will face a linker error. Reported-by: Sven Schnelle <svens@stackframe.org> Tested-by: Sven Schnelle <svens@stackframe.org> Cc: stable@vger.kernel.org # v4.14+ Signed-off-by: Helge Deller <deller@gmx.de>
2019-08-01Revert "drm/radeon: Provide ddc symlink in connector sysfs directory"Neil Armstrong
This reverts commit bed7a2182de6833f5d0f990a656bffb1c6000c70. It causes the following build error: ../drm/radeon/radeon_connectors.c: In function 'radeon_add_legacy_connector': ../drm/radeon/radeon_connectors.c:2433:5: error: 'ddc' undeclared (first use in this function) ddc = &radeon_connector->ddc_bus->adapter; ^~~ Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20190801115313.22562-1-narmstrong@baylibre.com
2019-08-01Merge tag 'at24-v5.3-rc3-fixes-for-wolfram' of ↵Wolfram Sang
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-current at24 fixes for v5.3-rc3 - make spd eeproms world-readable again
2019-08-01drm/i915: Only recover active enginesChris Wilson
If we issue a reset to a currently idle engine, leave it idle afterwards. This is useful to excise a linkage between reset and the shrinker. When waking the engine, we need to pin the default context image which we use for overwriting a guilty context -- if the engine is idle we do not need this pinned image! However, this pinning means that waking the engine acquires the FS_RECLAIM, and so may trigger the shrinker. The shrinker itself may need to wait upon the GPU to unbind and object and so may require services of reset; ergo we should avoid the engine wake up path. The danger in skipping the recovery for idle engines is that we leave the engine with no context defined, which may interfere with the operation of the power context on some older platforms. In practice, we should only be resetting an active GPU but it something to look out for on Ironlake (if memory serves). Fixes: 79ffac8599c4 ("drm/i915: Invert the GEM wakeref hierarchy") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190626154549.10066-2-chris@chris-wilson.co.uk (cherry picked from commit 18398904ca9e3ddd180e2ecd45886e146b1d9d5b) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2019-08-01drm/i915: Add a wakeref getter for iff the wakeref is already activeChris Wilson
For use in the next patch, we want to acquire a wakeref without having to wake the device up -- i.e. only acquire the engine wakeref if the engine is already active. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190626154549.10066-1-chris@chris-wilson.co.uk (cherry picked from commit de5147b8ce6d51f634661d7c531385371485cec6) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2019-08-01drm/i915: Lift intel_engines_resume() to callersChris Wilson
Since the reset path wants to recover the engines itself, it only wants to reinitialise the hardware using i915_gem_init_hw(). Pull the call to intel_engines_resume() to the module init/resume path so we can avoid it during reset. Fixes: 79ffac8599c4 ("drm/i915: Invert the GEM wakeref hierarchy") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190626154549.10066-3-chris@chris-wilson.co.uk (cherry picked from commit 092be382a2602067766f190a113514d469162456) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2019-08-01drm/i915: fix possible memory leak in intel_hdcp_auth_downstream()Wei Yongjun
'ksv_fifo' is malloced in intel_hdcp_auth_downstream() and should be freed before leaving from the error handling cases, otherwise it will cause memory leak. Fixes: f26ae6a652f2 ("drm/i915: SRM revocation check for HDCP1.4 and 2.2") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190704104534.12508-1-weiyongjun1@huawei.com
2019-08-01drm/i915/execlists: Always clear pending&inflight requests on resetChris Wilson
If we skip the reset as we found the engine inactive at the time of the reset, we still need to clear the residual inflight & pending request bookkeeping to reflect the current state of HW. Otherwise, we may end up stuck in a loop like: <7> [416.490346] hangcheck rcs0 <7> [416.490371] hangcheck Awake? 1 <7> [416.490376] hangcheck Hangcheck: 8003 ms ago <7> [416.490380] hangcheck Reset count: 0 (global 0) <7> [416.490383] hangcheck Requests: <7> [416.491210] hangcheck RING_START: 0x0017b000 <7> [416.491983] hangcheck RING_HEAD: 0x00000048 <7> [416.491992] hangcheck RING_TAIL: 0x00000048 <7> [416.492006] hangcheck RING_CTL: 0x00000000 <7> [416.492037] hangcheck RING_MODE: 0x00000200 [idle] <7> [416.492044] hangcheck RING_IMR: 00000000 <7> [416.492809] hangcheck ACTHD: 0x00000000_9ca00048 <7> [416.492824] hangcheck BBADDR: 0x00000000_00001004 <7> [416.492838] hangcheck DMA_FADDR: 0x00000000_00000000 <7> [416.492845] hangcheck IPEIR: 0x00000000 <7> [416.492852] hangcheck IPEHR: 0x00000000 <7> [416.492863] hangcheck Execlist status: 0x00018001 00000000, entries 12 <7> [416.492869] hangcheck Execlist CSB read 1, write 1, tasklet queued? no (enabled) <7> [416.492938] hangcheck Pending[0] ring:{start:0017b000, hwsp:fedf9000, seqno:00016fd6}, rq: 20ffa:16fd6!+ prio=-4094 @ 8307ms: signaled <7> [416.492972] hangcheck Queue priority hint: -4093 <7> [416.492979] hangcheck Q 20ffa:16fd8- prio=-4093 @ 8307ms: [i915] <7> [416.492985] hangcheck Q 20ffa:16fda prio=-4094 @ 8307ms: [i915] <7> [416.492990] hangcheck Q 20ffa:16fdc prio=-4094 @ 8307ms: [i915] <7> [416.492996] hangcheck Q 20ffa:16fde prio=-4094 @ 8307ms: [i915] <7> [416.493001] hangcheck Q 20ffa:16fe0 prio=-4094 @ 8307ms: [i915] <7> [416.493007] hangcheck Q 20ffa:16fe2 prio=-4094 @ 8307ms: [i915] <7> [416.493013] hangcheck Q 20ffa:16fe4 prio=-4094 @ 8307ms: [i915] <7> [416.493021] hangcheck ...skipping 21 queued requests... <7> [416.493027] hangcheck Q 20ffa:17010 prio=-4094 @ 8307ms: [i915] <7> [416.493081] hangcheck HWSP: <7> [416.493089] hangcheck [0000] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 <7> [416.493094] hangcheck * <7> [416.493100] hangcheck [0040] 10008002 00000000 10000018 00000000 10000018 00000000 10000001 00000000 <7> [416.493106] hangcheck [0060] 10000018 00000000 10000001 00000000 10000018 00000000 10000001 00000000 <7> [416.493111] hangcheck * <7> [416.493117] hangcheck [00a0] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000001 <7> [416.493123] hangcheck [00c0] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 <7> [416.493127] hangcheck * <7> [416.493132] hangcheck Idle? no <6> [416.512124] i915 0000:00:02.0: GPU HANG: ecode 11:0:0x00000000, hang on rcs0 <6> [416.512205] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace. <6> [416.512207] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel <6> [416.512208] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue. <6> [416.512210] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it. <6> [416.512212] [drm] GPU crash dump saved to /sys/class/drm/card0/error <5> [416.513602] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0 <7> [424.489258] hangcheck rcs0 <7> [424.489263] hangcheck Awake? 1 <7> [424.489267] hangcheck Hangcheck: 5954 ms ago <7> [424.489271] hangcheck Reset count: 1 (global 0) <7> [424.489274] hangcheck Requests: <7> [424.490128] hangcheck RING_START: 0x00000000 <7> [424.490870] hangcheck RING_HEAD: 0x00000000 <7> [424.490877] hangcheck RING_TAIL: 0x00000000 <7> [424.490887] hangcheck RING_CTL: 0x00000000 <7> [424.490897] hangcheck RING_MODE: 0x00000200 [idle] <7> [424.490904] hangcheck RING_IMR: 00000000 <7> [424.490917] hangcheck ACTHD: 0x00000000_00000000 <7> [424.490930] hangcheck BBADDR: 0x00000000_00000000 <7> [424.490943] hangcheck DMA_FADDR: 0x00000000_00000000 <7> [424.490950] hangcheck IPEIR: 0x00000000 <7> [424.490956] hangcheck IPEHR: 0x00000000 <7> [424.490968] hangcheck Execlist status: 0x00000001 00000000, entries 12 <7> [424.490972] hangcheck Execlist CSB read 11, write 11, tasklet queued? no (enabled) <7> [424.490983] hangcheck Pending[0] ring:{start:0017b000, hwsp:fedf9000, seqno:00016fd6}, rq: 20ffa:16fd6!+ prio=-4094 @ 16305ms: signaled <7> [424.490989] hangcheck Queue priority hint: -4093 <7> [424.490996] hangcheck Q 20ffa:16fd8- prio=-4093 @ 16305ms: [i915] <7> [424.491001] hangcheck Q 20ffa:16fda prio=-4094 @ 16305ms: [i915] <7> [424.491006] hangcheck Q 20ffa:16fdc prio=-4094 @ 16305ms: [i915] <7> [424.491011] hangcheck Q 20ffa:16fde prio=-4094 @ 16305ms: [i915] <7> [424.491016] hangcheck Q 20ffa:16fe0 prio=-4094 @ 16305ms: [i915] <7> [424.491022] hangcheck Q 20ffa:16fe2 prio=-4094 @ 16305ms: [i915] <7> [424.491048] hangcheck Q 20ffa:16fe4 prio=-4094 @ 16305ms: [i915] <7> [424.491057] hangcheck ...skipping 21 queued requests... <7> [424.491063] hangcheck Q 20ffa:17010 prio=-4094 @ 16305ms: [i915] <7> [424.491095] hangcheck HWSP: <7> [424.491102] hangcheck [0000] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 <7> [424.491106] hangcheck * <7> [424.491113] hangcheck [0040] 10008002 00000000 10000018 00000000 10000018 00000000 10000001 00000000 <7> [424.491118] hangcheck [0060] 10000018 00000000 10000001 00000000 10000018 00000000 10000001 00000000 <7> [424.491122] hangcheck * <7> [424.491127] hangcheck [00a0] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000000b <7> [424.491133] hangcheck [00c0] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 <7> [424.491136] hangcheck * <7> [424.491141] hangcheck Idle? no <5> [424.491834] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0 Where not having cleared the pending array on reset, it persists indefinitely. Fixes: fff8102aaed5 ("drm/i915/execlists: Process interrupted context on reset") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Andi Shyti <andi.shyti@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190730133035.1977-2-chris@chris-wilson.co.uk
2019-08-01xen/swiotlb: remember having called xen_create_contiguous_region()Juergen Gross
Instead of always calling xen_destroy_contiguous_region() in case the memory is DMA-able for the used device, do so only in case it has been made DMA-able via xen_create_contiguous_region() before. This will avoid a lot of xen_destroy_contiguous_region() calls for 64-bit capable devices. As the memory in question is owned by swiotlb-xen the PG_owner_priv_1 flag of the first allocated page can be used for remembering. Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Juergen Gross <jgross@suse.com>
2019-08-01xen/swiotlb: simplify range_straddles_page_boundary()Juergen Gross
range_straddles_page_boundary() is open coding several macros from include/xen/page.h. Use those instead. Additionally there is no need to have check_pages_physically_contiguous() as a separate function as it is used only once, so merge it into range_straddles_page_boundary(). Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Juergen Gross <jgross@suse.com>
2019-08-01xen/swiotlb: fix condition for calling xen_destroy_contiguous_region()Juergen Gross
The condition in xen_swiotlb_free_coherent() for deciding whether to call xen_destroy_contiguous_region() is wrong: in case the region to be freed is not contiguous calling xen_destroy_contiguous_region() is the wrong thing to do: it would result in inconsistent mappings of multiple PFNs to the same MFN. This will lead to various strange crashes or data corruption. Instead of calling xen_destroy_contiguous_region() in that case a warning should be issued as that situation should never occur. Cc: stable@vger.kernel.org Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by: Jan Beulich <jbeulich@suse.com> Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Juergen Gross <jgross@suse.com>
2019-07-31selinux: fix memory leak in policydb_init()Ondrej Mosnacek
Since roles_init() adds some entries to the role hash table, we need to destroy also its keys/values on error, otherwise we get a memory leak in the error path. Cc: <stable@vger.kernel.org> Reported-by: syzbot+fee3a14d4cdf92646287@syzkaller.appspotmail.com Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com> Signed-off-by: Paul Moore <paul@paul-moore.com>
2019-07-31drm/msm: Use the correct dma_sync calls in msm_gemRob Clark
[subject was: drm/msm: shake fist angrily at dma-mapping] So, using dma_sync_* for our cache needs works out w/ dma iommu ops, but it falls appart with dma direct ops. The problem is that, depending on display generation, we can have either set of dma ops (mdp4 and dpu have iommu wired to mdss node, which maps to toplevel drm device, but mdp5 has iommu wired up to the mdp sub-node within mdss). Fixes this splat on mdp5 devices: Unable to handle kernel paging request at virtual address ffffffff80000000 Mem abort info: ESR = 0x96000144 Exception class = DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000144 CM = 1, WnR = 1 swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000810e4000 [ffffffff80000000] pgd=0000000000000000 Internal error: Oops: 96000144 [#1] SMP Modules linked in: btqcomsmd btqca bluetooth cfg80211 ecdh_generic ecc rfkill libarc4 panel_simple msm wcnss_ctrl qrtr_smd drm_kms_helper venus_enc venus_dec videobuf2_dma_sg videobuf2_memops drm venus_core ipv6 qrtr qcom_wcnss_pil v4l2_mem2mem qcom_sysmon videobuf2_v4l2 qmi_helpers videobuf2_common crct10dif_ce mdt_loader qcom_common videodev qcom_glink_smem remoteproc bmc150_accel_i2c bmc150_magn_i2c bmc150_accel_core bmc150_magn snd_soc_lpass_apq8016 snd_soc_msm8916_analog mms114 mc nf_defrag_ipv6 snd_soc_lpass_cpu snd_soc_apq8016_sbc industrialio_triggered_buffer kfifo_buf snd_soc_lpass_platform snd_soc_msm8916_digital drm_panel_orientation_quirks CPU: 2 PID: 33 Comm: kworker/2:1 Not tainted 5.3.0-rc2 #1 Hardware name: Samsung Galaxy A5U (EUR) (DT) Workqueue: events deferred_probe_work_func pstate: 80000005 (Nzcv daif -PAN -UAO) pc : __clean_dcache_area_poc+0x20/0x38 lr : arch_sync_dma_for_device+0x28/0x30 sp : ffff0000115736a0 x29: ffff0000115736a0 x28: 0000000000000001 x27: ffff800074830800 x26: ffff000011478000 x25: 0000000000000000 x24: 0000000000000001 x23: ffff000011478a98 x22: ffff800009fd1c10 x21: 0000000000000001 x20: ffff800075ad0a00 x19: 0000000000000000 x18: ffff0000112b2000 x17: 0000000000000000 x16: 0000000000000000 x15: 00000000fffffff0 x14: ffff000011455d70 x13: 0000000000000000 x12: 0000000000000028 x11: 0000000000000001 x10: ffff00001106c000 x9 : ffff7e0001d6b380 x8 : 0000000000001000 x7 : ffff7e0001d6b380 x6 : ffff7e0001d6b382 x5 : 0000000000000000 x4 : 0000000000001000 x3 : 000000000000003f x2 : 0000000000000040 x1 : ffffffff80001000 x0 : ffffffff80000000 Call trace: __clean_dcache_area_poc+0x20/0x38 dma_direct_sync_sg_for_device+0xb8/0xe8 get_pages+0x22c/0x250 [msm] msm_gem_get_and_pin_iova+0xdc/0x168 [msm] ... Fixes the combination of two patches: Fixes: 0036bc73ccbe (drm/msm: stop abusing dma_map/unmap for cache) Fixes: 449fa54d6815 (dma-direct: correct the physical addr in dma_direct_sync_sg_for_cpu/device) Tested-by: Stephan Gerhold <stephan@gerhold.net> Signed-off-by: Rob Clark <robdclark@chromium.org> [seanpaul changed subject to something more desriptive] Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190730214633.17820-1-robdclark@gmail.com
2019-07-31Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds
Pull mount_capable() fix from Al Viro. * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: Unbreak mount_capable()
2019-07-31Bluetooth: hci_uart: check for missing tty operationsVladis Dronov
Certain ttys operations (pty_unix98_ops) lack tiocmget() and tiocmset() functions which are called by the certain HCI UART protocols (hci_ath, hci_bcm, hci_intel, hci_mrvl, hci_qca) via hci_uart_set_flow_control() or directly. This leads to an execution at NULL and can be triggered by an unprivileged user. Fix this by adding a helper function and a check for the missing tty operations in the protocols code. This fixes CVE-2019-10207. The Fixes: lines list commits where calls to tiocm[gs]et() or hci_uart_set_flow_control() were added to the HCI UART protocols. Link: https://syzkaller.appspot.com/bug?id=1b42faa2848963564a5b1b7f8c837ea7b55ffa50 Reported-by: syzbot+79337b501d6aa974d0f6@syzkaller.appspotmail.com Cc: stable@vger.kernel.org # v2.6.36+ Fixes: b3190df62861 ("Bluetooth: Support for Atheros AR300x serial chip") Fixes: 118612fb9165 ("Bluetooth: hci_bcm: Add suspend/resume PM functions") Fixes: ff2895592f0f ("Bluetooth: hci_intel: Add Intel baudrate configuration support") Fixes: 162f812f23ba ("Bluetooth: hci_uart: Add Marvell support") Fixes: fa9ad876b8e0 ("Bluetooth: hci_qca: Add support for Qualcomm Bluetooth chip wcn3990") Signed-off-by: Vladis Dronov <vdronov@redhat.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Reviewed-by: Yu-Chen, Cho <acho@suse.com> Tested-by: Yu-Chen, Cho <acho@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-07-31mm: slub: Fix slab walking for init_on_freeLaura Abbott
To properly clear the slab on free with slab_want_init_on_free, we walk the list of free objects using get_freepointer/set_freepointer. The value we get from get_freepointer may not be valid. This isn't an issue since an actual value will get written later but this means there's a chance of triggering a bug if we use this value with set_freepointer: kernel BUG at mm/slub.c:306! invalid opcode: 0000 [#1] PREEMPT PTI CPU: 0 PID: 0 Comm: swapper Not tainted 5.2.0-05754-g6471384a #4 RIP: 0010:kfree+0x58a/0x5c0 Code: 48 83 05 78 37 51 02 01 0f 0b 48 83 05 7e 37 51 02 01 48 83 05 7e 37 51 02 01 48 83 05 7e 37 51 02 01 48 83 05 d6 37 51 02 01 <0f> 0b 48 83 05 d4 37 51 02 01 48 83 05 d4 37 51 02 01 48 83 05 d4 RSP: 0000:ffffffff82603d90 EFLAGS: 00010002 RAX: ffff8c3976c04320 RBX: ffff8c3976c04300 RCX: 0000000000000000 RDX: ffff8c3976c04300 RSI: 0000000000000000 RDI: ffff8c3976c04320 RBP: ffffffff82603db8 R08: 0000000000000000 R09: 0000000000000000 R10: ffff8c3976c04320 R11: ffffffff8289e1e0 R12: ffffd52cc8db0100 R13: ffff8c3976c01a00 R14: ffffffff810f10d4 R15: ffff8c3976c04300 FS: 0000000000000000(0000) GS:ffffffff8266b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff8c397ffff000 CR3: 0000000125020000 CR4: 00000000000406b0 Call Trace: apply_wqattrs_prepare+0x154/0x280 apply_workqueue_attrs_locked+0x4e/0xe0 apply_workqueue_attrs+0x36/0x60 alloc_workqueue+0x25a/0x6d0 workqueue_init_early+0x246/0x348 start_kernel+0x3c7/0x7ec x86_64_start_reservations+0x40/0x49 x86_64_start_kernel+0xda/0xe4 secondary_startup_64+0xb6/0xc0 Modules linked in: ---[ end trace f67eb9af4d8d492b ]--- Fix this by ensuring the value we set with set_freepointer is either NULL or another value in the chain. Reported-by: kernel test robot <rong.a.chen@intel.com> Signed-off-by: Laura Abbott <labbott@redhat.com> Fixes: 6471384af2a6 ("mm: security: introduce init_on_alloc=1 and init_on_free=1 boot options") Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-07-31drm/amdkfd: enable KFD support for navi14Alex Deucher
Same as navi10. Reviewed-by: Xiaojie Yuan <xiaojie.yuan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31drm/amdgpu: disable inject for failed subblocks of gfxDennis Li
some subblocks of gfx fail in inject test, disable them Signed-off-by: Dennis Li <Dennis.Li@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31drm/amdgpu: support gfx ras error injection and err_cnt queryDennis Li
check gfx error count in both ras querry function and ras interrupt handler. gfx ras is still disabled by default due to known stability issue found in gpu reset. Signed-off-by: Dennis Li <Dennis.Li@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31drm/amdgpu: add RAS callback for gfxDennis Li
Add functions for RAS error inject and query error counter Signed-off-by: Dennis Li <Dennis.Li@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31drm/amdgpu: add define for gfx ras subblockDennis Li
Signed-off-by: Dennis Li <Dennis.Li@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31drm/amd/include: add define of TCP_EDC_CNT_NEWDennis Li
Signed-off-by: Dennis Li <Dennis.Li@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31drm/amd/include: add bitfield define for EDC registersDennis Li
Add EDC registers to support VEGA20 RAS Signed-off-by: Dennis Li <Dennis.Li@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31drm/amdgpu: remove ras_reserve_vram in ras injectionTao Zhou
error injection address is not in gpu address space Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Dennis Li <dennis.li@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31drm/amdgpu: add check for ras error typeTao Zhou
only ue and ce errors are supported Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Dennis Li <dennis.li@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31drm/amdgpu: update interrupt callback for all ras clientsTao Zhou
add err_data parameter in interrupt cb for ras clients Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Dennis Li <dennis.li@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31drm/amdgpu: allow ras interrupt callback to return error dataTao Zhou
add error data as parameter for ras interrupt cb and process it Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Dennis Li <dennis.li@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31drm/amdgpu: query umc ras error addressTao Zhou
query umc ras error address, translate it to gpu 4k page view and save it. Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Dennis Li <dennis.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31drm/amdgpu: add structures for umc error address translationTao Zhou
add related registers, callback function and channel index table Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31drm/amdgpu: add support for recording ras error addressTao Zhou
more than one error address may be recorded in one query Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Dennis Li <dennis.li@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31drm/amdgpu: update algorithm of umc uncorrectable error countingTao Zhou
remove the check of ErrorCodeExt v2: refine the if condition for ue counting Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Dennis Li <dennis.li@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31drm/amdgpu: switch to amdgpu_umc structureTao Zhou
create new amdgpu_umc structure to for more umc settings in future and switch to the new structure Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Dennis Li <dennis.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31drm/amdgpu: use 64bit operation macros for umcTao Zhou
replace some 32bit macros with 64bit operations to simplify code Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Dennis Li <dennis.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31drm/amdgpu: add RREG64/WREG64(_PCIE) operationsTao Zhou
add 64 bits register access functions v2: implement 64 bit functions in low level Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Dennis Li <dennis.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
generated by cgit (git 2.34.1) at 2025-09-14 10:28:41 +0000