- 14 Oct, 2021 26 commits
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, the error value gets printed. Signed-off-by:
Cai Huoqing <caihuoqing@baidu.com> Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210916104620.11569-1-caihuoqing@baidu.com
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, the error value gets printed. Signed-off-by:
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, and the error value gets printed. Signed-off-by:
Icenowy Zheng <icenowy@aosc.io> Signed-off-by:
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, and the error value gets printed. Signed-off-by:
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, and the error value gets printed. Signed-off-by:
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, and the error value gets printed. Signed-off-by:
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Cai Huoqing authored
Removed extra whitespace before dev_err_probe() according to coding style. Signed-off-by:
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Brian Norris authored
Many DSI panel drivers fail to clean up their panel references on mipi_dsi_attach() failure, so we're leaving a dangling drm_panel reference to freed memory. Clean that up on failure. Noticed by inspection, after seeing similar problems on other drivers. Therefore, I'm not marking Fixes/stable. Signed-off-by:
Brian Norris <briannorris@chromium.org> Signed-off-by:
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Brian Norris authored
If we fail to attach (e.g., because 1 of 2 dual-DSI controllers aren't ready), we leave a dangling drm_panel reference to freed memory. Clean that up on failure. This problem exists since the driver's introduction, but is especially relevant after refactored for dual-DSI variants. Fixes: 14c8f2e9 ("drm/panel: add Innolux P079ZCA panel driver") Fixes: 7ad4e463 ("drm/panel: p079zca: Refactor panel driver to support multiple panels") Signed-off-by:
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Brian Norris authored
If we fail to attach (e.g., because 1 of 2 dual-DSI controllers aren't ready), we leave a dangling drm_panel reference to freed memory. Clean that up on failure. Fixes: 2a994cbe ("drm/panel: Add Kingdisplay KD097D04 panel driver") Signed-off-by:
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Raffaele Tranquillini authored
This adds support for the JDI R63452 Full HD LCD panel used on the Xiaomi Mi 5 smartphone, in MIPI DSI command mode. Signed-off-by:
Raffaele Tranquillini <raffaele.tranquillini@gmail.com> Signed-off-by:
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Raffaele Tranquillini authored
This add the bindings for the JDI FHD_R63452 1080x1920 5.2" LCD DSI panel used on the Xiaomi Mi 5 smartphone. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Wang Hai authored
I got a null-ptr-deref report: [drm:drm_dev_init [drm]] *ERROR* Cannot allocate anonymous inode: -12 ================================================================== BUG: KASAN: null-ptr-deref in iput+0x3c/0x4a0 ... Call Trace: dump_stack_lvl+0x6c/0x8b kasan_report.cold+0x64/0xdb __asan_load8+0x69/0x90 iput+0x3c/0x4a0 drm_dev_init_release+0x39/0xb0 [drm] drm_managed_release+0x158/0x2d0 [drm] drm_dev_init+0x3a7/0x4c0 [drm] __devm_drm_dev_alloc+0x55/0xd0 [drm] mi0283qt_probe+0x8a/0x2b5 [mi0283qt] spi_probe+0xeb/0x130 ... entry_SYSCALL_64_after_hwframe+0x44/0xae If drm_fs_inode_new() fails in drm_dev_init(), dev->anon_inode will point to PTR_ERR(...) instead of NULL. This will result in null-ptr-deref when drm_fs_inode_free(dev->anon_inode) is called. drm_dev_init() drm_fs_inode_new() // fail, dev->anon_inode = PTR_ERR(...) drm_managed_release() drm_dev_init_release() drm_fs_inode_free() // access non-existent anon_inode Define a temp variable and assign it to dev->anon_inode if the temp variable is not PTR_ERR. Fixes: 2cbf7fc6 ("drm: Use drmm_ for drm_dev_init cleanup") Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Wang Hai <wanghai38@huawei.com> Signed-off-by:
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Nikola Pavlica authored
The model and make of the LCD panel of the Vivax TPC-9150 is unknown, hence the panel settings that were retrieved with a FEX dump are named after the device NOT the actual panel. The LCD in question is a 50 pin MISO TFT LCD panel of the resolution 1024x600 used by the aforementioned device. Version 2, as Thierry kindly suggested that I fix the order in which the panel was ordered compared to others. Version 3, filling in the required info suggested by Sam. Plus some factual issues that I've corrected myself (tested working) Version 4, rearranged the display parameters and fix invalid bit format issue. (Thanks Sam) Version 5, referred to FEX file instead of manual debugging for information. Version 6, same as above. This time, it'll be documented. A bit of context first: I experimented with this a long time ago whilst I was first learning how to get Linux running on Allwinner boards, I didn't have many resources at hand so this was quite slow. Anyways, I stumbled upon this guide (https://linux-sunxi.org/LCD) and was reading about how to setup the LCD for my tablet. Since I was able to make a proper FEX dump, I was also able to read the correct parameters for myself without relying on leaked documents or part numbers and whatnot. In the FEX dump the value lcd_frm IS SET to 1, which means, at least according to the document, that this display is INDEED an 18 bit per pixel panel. Compiling U-Boot and seeing the tux in proper colors confirmed this. As per Sam Ravnborg's suggestion, I've changed the panel to his format "MEDIA_BUS_FMT_RGB666_1X7X3_SPWG", however this does not lead to any actual change in regards to the functionality since the sunxi panel driver just ignores this value. However, hopefully this clears up any errors down the road as either the driver becomes advanced enough to not ignore this value or that some other piece of software relies on this value being known. PS: Apologies to the maintainers that have to endure my misjudgement about how these things work. As for the concerns about a single patch series, I wasn't sure where to send the patches as they clearly aren't dt-bindings related and my previous patches have ended up in drm-misc-fixes anyway. So I'm guessing I'll be fine if I just post them in the list from last time??? Signed-off-by:
Nikola Pavlica <pavlica.nikola@gmail.com> Signed-off-by:
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Marek Vasut authored
Add helper function to convert DT "data-mapping" property string value into media bus format value, and deduplicate the code in panel-lvds.c and lvds-codec.c . Signed-off-by:
Marek Vasut <marex@denx.de> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Sam Ravnborg <sam@ravnborg.org> To: dri-devel@lists.freedesktop.org Signed-off-by:
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Dan Carpenter authored
The "label" pointer is used for debug output. The code assumes that it is either NULL or valid, but it is never set to NULL. It is either valid or uninitialized. Fixes: 0c275c30 ("drm/bridge: Add bridge driver for display connectors") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Oleksij Rempel authored
Add compatible and timings for the Innolux G070Y2-T02 panel. It is 7" WVGA (800x480) TFT LCD panel with TTL interface and a backlight unit. Co-Developed-by:
Robin van der Gracht <robin@protonic.nl> Signed-off-by:
Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by:
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Gustavo A. R. Silva authored
Fix the following fallthrough warnings: drivers/video/fbdev/omap/omapfb_main.c:1558:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough] case 0: ^ drivers/video/fbdev/omap/omapfb_main.c:1558:2: note: insert 'break;' to avoid fall-through case 0: ^ break; 1 warning generated. This helps with the ongoing efforts to globally enable -Wimplicit-fallthrough for Clang. Link: https://github.com/KSPP/linux/issues/115 Link: https://lore.kernel.org/lkml/202110141005.hUjaYMEi-lkp@intel.com/Reported-by:kernel test robot <lkp@intel.com> Signed-off-by:
Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by:
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Hans de Goede authored
Register a privacy-screen device on laptops with a privacy-screen, this exports the PrivacyGuard features to user-space using a standardized vendor-agnostic sysfs interface. Note the sysfs interface is read-only. Registering a privacy-screen device with the new privacy-screen class code will also allow the GPU driver to get a handle to it and export the privacy-screen setting as a property on the DRM connector object for the LCD panel. This DRM connector property is a new standardized interface which all user-space code should use to query and control the privacy-screen. Reviewed-by:
Emil Velikov <emil.l.velikov@gmail.com> Reviewed-by:
Lyude Paul <lyude@redhat.com> Reviewed-by:
Mark Pearson <markpearson@lenovo.com> Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211005202322.700909-9-hdegoede@redhat.com
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Hans de Goede authored
Get the privacy-screen / lcdshadow ACPI handles once and cache them, instead of retrieving them every time we need them. Reviewed-by:
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Hans de Goede authored
Factor the extended hotkey handling out of hotkey_notify_hotkey() and into a new hotkey_notify_extended_hotkey() helper. This is a preparation patch for adding support the privacy-screen hotkey toggle (which needs some special handling, it should NOT send an evdev key-event to userspace...). Reviewed-by:
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Hans de Goede authored
Add 2 drm_connector privacy-screen helper functions: 1. drm_connector_attach_privacy_screen_provider(), this function creates and attaches the standard privacy-screen properties and registers a generic notifier for generating sysfs-connector-status-events on external changes to the privacy-screen status. 2. drm_connector_update_privacy_screen(), update the privacy-screen's sw_state if the connector has a privacy-screen. Changes in v2: - Do not update connector->state->privacy_screen_sw_state on atomic-commits. - Change drm_connector_update_privacy_screen() to take drm_connector_state as argument instead of a full drm_atomic_state. This allows the helper to be called by drivers when they are enabling crtcs/encoders/connectors. Reviewed-by:
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Hans de Goede authored
Add support for privacy-screen consumers to register a notifier to be notified of external (e.g. done by the hw itself on a hotkey press) state changes. Changes in v2: - Drop WARN_ON(mutex_is_locked(&priv->lock)) check in drm_privacy_screen_call_notifier_chain() it may be locked by another thread, which would lead to a false-positive triggering of the check Reviewed-by:
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Hans de Goede authored
Add X86 specific arch init code, which fills the privacy-screen lookup table by checking for various vendor specific ACPI interfaces for controlling the privacy-screen. This initial version only checks for the Lenovo Thinkpad specific ACPI methods for privacy-screen control. Reviewed-by:
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Hans de Goede authored
On some new laptops the LCD panel has a builtin electronic privacy-screen. We want to export this functionality as a property on the drm connector object. But often this functionality is not exposed on the GPU but on some other (ACPI) device. This commit adds a privacy-screen class allowing the driver for these other devices to register themselves as a privacy-screen provider; and allowing the drm/kms code to get a privacy-screen provider associated with a specific GPU/connector combo. Changes in v2: - Make CONFIG_DRM_PRIVACY_SCREEN a bool which controls if the drm_privacy code gets built as part of the main drm module rather then making it a tristate which builds its own module. - Add a #if IS_ENABLED(CONFIG_DRM_PRIVACY_SCREEN) check to drm_privacy_screen_consumer.h and define stubs when the check fails. Together these 2 changes fix several dependency issues. - Remove module related code now that this is part of the main drm.ko - Use drm_class as class for the privacy-screen devices instead of adding a separate class for this Changes in v3: - Make the static inline drm_privacy_screen_get_state() stub set sw_state and hw_state to PRIVACY_SCREEN_DISABLED to squelch an uninitialized variable warning when CONFIG_DRM_PRIVICAY_SCREEN is not set Changes in v4: - Make drm_privacy_screen_set_sw_state() skip calling out to the hw if hw_state == new_sw_state Reviewed-by:
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Rajat Jain authored
Add support for generic electronic privacy screen properties, that can be added by systems that have an integrated EPS. Changes in v2 (Hans de Goede) - Create 2 properties, "privacy-screen sw-state" and "privacy-screen hw-state", to deal with devices where the OS might be locked out of making state changes - Write kerneldoc explaining how the 2 properties work together, what happens when changes to the state are made outside of the DRM code's control, etc. Changes in v3 (Hans de Goede) - Some small tweaks to the kerneldoc describing the 2 properties Changes in v4 (Hans de Goede) - Change the "Enabled, locked" and "Disabled, locked" hw-state enum value names to "Enabled-locked" and "Disabled-locked". The xrandr command shows all possible enum values separated by commas in its output, so having a comma in an enum name is not a good idea. - Do not add a privacy_screen_hw_state member to drm_connector_state since this property is immutable its value must be directly stored in the obj->properties->values array Signed-off-by:
Rajat Jain <rajatja@google.com> Acked-by:
Pekka Paalanen <pekka.paalanen@collabora.com> Reviewed-by:
Mario Limonciello <Mario.limonciello@dell.com> Reviewed-by:
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- 13 Oct, 2021 3 commits
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Claudio Suarez authored
Scroll acceleration is disabled in fbcon by hard-wiring p->scrollmode = SCROLL_REDRAW. Remove the obsolete code in fbcon.c and fbdev/core/ Signed-off-by:
Claudio Suarez <cssk@net-c.es> Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/YVXTYqszZix9TxjJ@gineta.localdomain
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Jani Nikula authored
If drm_modeset_lock() returns -EDEADLK, the caller is supposed to drop all currently held locks using drm_modeset_backoff(). Failing to do so will result in warnings and backtraces on the paths trying to lock a contended lock. Add support for optionally printing the backtrace on the path that hit the deadlock and didn't gracefully handle the situation. For example, the patch [1] inadvertently dropped the return value check and error return on replacing calc_watermark_data() with intel_compute_global_watermarks(). The backtraces on the subsequent locking paths hitting WARN_ON(ctx->contended) were unhelpful, but adding the backtrace to the deadlock path produced this helpful printout: <7> [98.002465] drm_modeset_lock attempting to lock a contended lock without backoff: drm_modeset_lock+0x107/0x130 drm_atomic_get_plane_state+0x76/0x150 skl_compute_wm+0x251d/0x2b20 [i915] intel_atomic_check+0x1942/0x29e0 [i915] drm_atomic_check_only+0x554/0x910 drm_atomic_nonblocking_commit+0xe/0x50 drm_mode_atomic_ioctl+0x8c2/0xab0 drm_ioctl_kernel+0xac/0x140 Add new CONFIG_DRM_DEBUG_MODESET_LOCK to enable modeset lock debugging with stack depot and trace. [1] https://lore.kernel.org/r/20210924114741.15940-4-jani.nikula@intel.com v2: - default y if DEBUG_WW_MUTEX_SLOWPATH (Daniel) - depends on DEBUG_KERNEL Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Dave Airlie <airlied@gmail.com> Reviewed-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211001091444.8177-1-jani.nikula@intel.com
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Amos Kong authored
Correct the argument name of @placement and added @sg description for ttm_bo_init() and ttm_bo_init_reserved(). Argument @flags was replaced to @placement by Jerome in commit 09855acb Argument @sg was added by Dave in commit 129b78bfSigned-off-by:
Amos Kong <amos@sietium.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Dave Airlie <airlied@redhat.com> Reviewed-by:
Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/38eac09bf2ddd6088cc8a126e6bc4792eaa2dc88.1633462176.git.amos@sietium.comSigned-off-by:
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- 12 Oct, 2021 6 commits
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Karol Herbst authored
Fixes a compilation issue introduced because I forgot to test with WERROR enabled. Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: DRI <dri-devel@lists.freedesktop.org> Cc: nouveau@lists.freedesktop.org Fixes: 404046cf ("drm/nouveau/mmu/gp100-: drop unneeded assignment in the if condition.") Acked-by:
Adam Jackson <ajax@redhat.com> Reviewed-by:
Karol Herbst <kherbst@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211012133334.1737918-1-kherbst@redhat.com
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Guido Günther authored
If a bridge doesn't do any bus format handling MEDIA_BUS_FMT_FIXED is returned. Fallback to a reasonable default (MEDIA_BUS_FMT_RGB888_1X24) in that case. This unbreaks e.g. using mxsfb with the nwl bridge and mipi dsi panels. Reported-by:
Martin Kepplinger <martink@posteo.de> Signed-off-by:
Guido Günther <agx@sigxcpu.org> Reviewed-by:
Lucas Stach <l.stach@pengutronix.de> Reviewed-by:
Stefan Agner <stefan@agner.ch> Link: https://patchwork.freedesktop.org/patch/msgid/781f0352052cc50c823c199ef5f53c84902d0580.1633959458.git.agx@sigxcpu.org
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Guido Günther authored
media-bus-formats.h has them in hexadecimal as well so matching with that file saves one conversion when debugging. Signed-off-by:
Robert Foss <robert.foss@linaro.org> Reviewed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by:
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Guido Günther authored
This allows the DSI bridge to detect the correct bus format. We currently only support MEDIA_BUS_FMT_RGB888_1X24. Signed-off-by:
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Guido Günther authored
This allows the DSI bridge to detect the correct bus format. We currently only support MEDIA_BUS_FMT_RGB888_1X24. Signed-off-by:
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Guido Günther authored
Components further up in the chain might ask us for supported formats. Without this MEDIA_BUS_FMT_FIXED is assumed which then breaks display output with mxsfb since it can't determine a proper bus format. We handle the bus formats that correspond to the DSI formats the bridge can potentially output (see chapter 13.6 of the i.MX 8MQ reference manual) - which matches what xsfb can input. Fixes: b776b0f0 ("drm: mxsfb: Use bus_format from the nearest bridge if present") Signed-off-by:
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- 11 Oct, 2021 5 commits
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Dan Carpenter authored
The copy_to/from_user() function returns the number of bytes remaining to be copied, but we want to return -EFAULT on error. Fixes: e4165ae8 ("drm/v3d: add multiple syncobjs support") Signed-off-by:
Melissa Wen <mwen@igalia.com> Signed-off-by:
Melissa Wen <melissa.srw@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211011123303.GA14314@kili
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Randy Dunlap authored
Clean up all of the kernel-doc issues in drm_connector.c: drivers/gpu/drm/drm_connector.c:2611: warning: Excess function parameter 'connector' description in 'drm_connector_oob_hotplug_event' drivers/gpu/drm/drm_connector.c:2611: warning: Function parameter or member 'connector_fwnode' not described in 'drm_connector_oob_hotplug_event' drm_connector.c:630: warning: No description found for return value of 'drm_get_connector_status_name' drm_connector.c:715: warning: No description found for return value of 'drm_connector_list_iter_next' drm_connector.c:785: warning: No description found for return value of 'drm_get_subpixel_order_name' drm_connector.c:816: warning: No description found for return value of 'drm_display_info_set_bus_formats' drm_connector.c:1331: warning: No description found for return value of 'drm_mode_create_dvi_i_properties' drm_connector.c:1412: warning: No description found for return value of 'drm_connector_attach_content_type_property' drm_connector.c:1492: warning: No description found for return value of 'drm_mode_create_tv_margin_properties' drm_connector.c:1534: warning: No description found for return value of 'drm_mode_create_tv_properties' drm_connector.c:1627: warning: No description found for return value of 'drm_mode_create_scaling_mode_property' drm_connector.c:1944: warning: No description found for return value of 'drm_mode_create_suggested_offset_properties' drm_connector.c:2315: warning: missing initial short description on line: * drm_connector_set_panel_orientation_with_quirk - [The last warning listed is probably a quirk/bug in scripts/kernel-doc.] Fixes: 613051da ("drm: locking&new iterators for connector_list") Fixes: 52217195 ("drm: Extract drm_connector.[hc]") Fixes: b3c6c8bf ("drm: document drm_display_info") Fixes: 50525c33 ("drm: content-type property for HDMI connector") Fixes: 6c4f52dc ("drm/connector: Allow creation of margin props alone") Fixes: 69654c63 ("drm/connector: Split out orientation quirk detection (v2)") Fixes: 72ad4968 ("drm/connector: Add support for out-of-band hotplug notification (v3)") Signed-off-by:
Randy Dunlap <rdunlap@infradead.org> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Derek Basehore <dbasehore@chromium.org> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
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Uwe Kleine-König authored
Up to now s6e63m0_remove() returns zero unconditionally. Make it return void instead which makes it easier to see in the callers that there is no error to handle. Also the return value of spi remove callbacks is ignored anyway. Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by:
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Tvrtko Ursulin authored
Cache the count of shared fences in the iterator to avoid dereferencing the dma_resv_object outside the RCU protection. Otherwise iterator and its users can observe an incosistent state which makes it impossible to use safely. Such as: <6> [187.517041] [IGT] gem_sync: executing <7> [187.536343] i915 0000:00:02.0: [drm:i915_gem_context_create_ioctl [i915]] HW context 1 created <7> [187.536793] i915 0000:00:02.0: [drm:i915_gem_context_create_ioctl [i915]] HW context 1 created <6> [187.551235] [IGT] gem_sync: starting subtest basic-many-each <1> [188.935462] BUG: kernel NULL pointer dereference, address: 0000000000000010 <1> [188.935485] #PF: supervisor write access in kernel mode <1> [188.935495] #PF: error_code(0x0002) - not-present page <6> [188.935504] PGD 0 P4D 0 <4> [188.935512] Oops: 0002 [#1] PREEMPT SMP NOPTI <4> [188.935521] CPU: 2 PID: 1467 Comm: gem_sync Not tainted 5.15.0-rc4-CI-Patchwork_21264+ #1 <4> [188.935535] Hardware name: /NUC6CAYB, BIOS AYAPLCEL.86A.0049.2018.0508.1356 05/08/2018 <4> [188.935546] RIP: 0010:dma_resv_get_fences+0x116/0x2d0 <4> [188.935560] Code: 10 85 c0 7f c9 be 03 00 00 00 e8 15 8b df ff eb bd e8 8e c6 ff ff eb b6 41 8b 04 24 49 8b 55 00 48 89 e7 8d 48 01 41 89 0c 24 <4c> 89 34 c2 e8 41 f2 ff ff 49 89 c6 48 85 c0 75 8c 48 8b 44 24 10 <4> [188.935583] RSP: 0018:ffffc900011dbcc8 EFLAGS: 00010202 <4> [188.935593] RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 0000000000000001 <4> [188.935603] RDX: 0000000000000010 RSI: ffffffff822e343c RDI: ffffc900011dbcc8 <4> [188.935613] RBP: ffffc900011dbd48 R08: ffff88812d255bb8 R09: 00000000fffffffe <4> [188.935623] R10: 0000000000000001 R11: 0000000000000000 R12: ffffc900011dbd44 <4> [188.935633] R13: ffffc900011dbd50 R14: ffff888113d29cc0 R15: 0000000000000000 <4> [188.935643] FS: 00007f68d17e9700(0000) GS:ffff888277900000(0000) knlGS:0000000000000000 <4> [188.935655] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4> [188.935665] CR2: 0000000000000010 CR3: 000000012d0a4000 CR4: 00000000003506e0 <4> [188.935676] Call Trace: <4> [188.935685] i915_gem_object_wait+0x1ff/0x410 [i915] <4> [188.935988] i915_gem_wait_ioctl+0xf2/0x2a0 [i915] <4> [188.936272] ? i915_gem_object_wait+0x410/0x410 [i915] <4> [188.936533] drm_ioctl_kernel+0xae/0x140 <4> [188.936546] drm_ioctl+0x201/0x3d0 <4> [188.936555] ? i915_gem_object_wait+0x410/0x410 [i915] <4> [188.936820] ? __fget_files+0xc2/0x1c0 <4> [188.936830] ? __fget_files+0xda/0x1c0 <4> [188.936839] __x64_sys_ioctl+0x6d/0xa0 <4> [188.936848] do_syscall_64+0x3a/0xb0 <4> [188.936859] entry_SYSCALL_64_after_hwframe+0x44/0xae If the shared object has changed during the RCU unlocked period callers will correctly handle the restart on the next iteration. Signed-off-by:
Tvrtko Ursulin <tvrtko.ursulin@intel.com> Fixes: 96601e8a ("dma-buf: use new iterator in dma_resv_copy_fences") Fixes: d3c80698 ("dma-buf: use new iterator in dma_resv_get_fences v3") Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/4274 Cc: Christian König <christian.koenig@amd.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linaro-mm-sig@lists.linaro.org Link: https://patchwork.freedesktop.org/patch/msgid/20211008095007.972693-1-tvrtko.ursulin@linux.intel.comReviewed-by:
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/nouveau/nouveau_bo.c: In function ‘nouveau_ttm_tt_populate’: drivers/gpu/drm/nouveau/nouveau_bo.c:1228:17: warning: variable ‘dev’ set but not used [-Wunused-but-set-variable] drivers/gpu/drm/nouveau/nouveau_bo.c: In function ‘nouveau_ttm_tt_unpopulate’: drivers/gpu/drm/nouveau/nouveau_bo.c:1252:17: warning: variable ‘dev’ set but not used [-Wunused-but-set-variable] Cc: Ben Skeggs <bskeggs@redhat.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: "Christian König" <christian.koenig@amd.com> Cc: Jeremy Kolb <jkolb@brandeis.edu> Cc: dri-devel@lists.freedesktop.org Cc: nouveau@lists.freedesktop.org Cc: linux-media@vger.kernel.org Cc: linaro-mm-sig@lists.linaro.org Signed-off-by:
Lee Jones <lee.jones@linaro.org> Reviewed-by:
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