- 02 Oct, 2023 3 commits
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Mark Brown authored
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by:
Mark Brown <broonie@kernel.org> Reviewed-by:
Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by:
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Mark Brown authored
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by:
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Mark Brown authored
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
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- 30 Sep, 2023 2 commits
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Arthur Grillo authored
To fully cover drm_fb_blit(), add format conversion tests that are only supported through drm_fb_blit(). Signed-off-by:
Arthur Grillo <arthurgrillo@riseup.net> Reviewed-by:
Maíra Canal <mairacanal@riseup.net> Signed-off-by:
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Arthur Grillo authored
Add a call to drm_fb_blit() on existing format conversion tests that has support. Signed-off-by:
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- 28 Sep, 2023 4 commits
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Jani Nikula authored
Make drm_bridge_get_edid() the one place to call the hook. Cc: Andrzej Hajda <andrzej.hajda@intel.com> Cc: Neil Armstrong <neil.armstrong@linaro.org> Cc: Robert Foss <rfoss@kernel.org> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> Cc: Jonas Karlman <jonas@kwiboo.se> Cc: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Reviewed-by:
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Jani Nikula authored
Make drm_bridge_get_edid() the one place to call the hook. Cc: Andrzej Hajda <andrzej.hajda@intel.com> Cc: Neil Armstrong <neil.armstrong@linaro.org> Cc: Robert Foss <rfoss@kernel.org> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> Cc: Jonas Karlman <jonas@kwiboo.se> Cc: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by:
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Douglas Anderson authored
As per the discussion on the lists [1], changes to this driver generally flow through drm-misc. Add a tag in MAINTAINERS to document this [1] https://lore.kernel.org/r/20230925054710.r3guqn5jzdl4giwd@fsr-ub1664-121.ea.freescale.netSigned-off-by:
Douglas Anderson <dianders@chromium.org> Acked-by:
Laurentiu Palcu <laurentiu.palcu@oss.nxp.com> Signed-off-by:
Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20230925154929.1.I3287e895ce8e68d41b458494a49a1b5ec5c71013@changeid
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Maxime Ripard authored
We've had a number of times when a patch slipped through and we couldn't pick them up either because our MAINTAINERS entry only covers the framework and thus we weren't Cc'd. Let's take another approach where we match everything, and remove all the drivers that are not maintained through drm-misc. Acked-by:
Dave Airlie <airlied@redhat.com> Acked-by:
Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by:
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- 27 Sep, 2023 5 commits
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Arnd Bergmann authored
After a recent change, two variables are only used in an #ifdef: drivers/gpu/drm/nouveau/dispnv50/disp.c: In function 'nv50_sor_atomic_disable': drivers/gpu/drm/nouveau/dispnv50/disp.c:1569:13: error: unused variable 'ret' [-Werror=unused-variable] 1569 | int ret; | ^~~ drivers/gpu/drm/nouveau/dispnv50/disp.c:1568:28: error: unused variable 'aux' [-Werror=unused-variable] 1568 | struct drm_dp_aux *aux = &nv_connector->aux; | ^~~ Move them into the same conditional block, along with the nv_connector variable that becomes unused during that fix. Fixes: 75703380 ("drm/nouveau/kms/nv50-: fixup sink D3 before tearing down link") Signed-off-by:Arnd Bergmann <arnd@arndb.de> Reviewed-by:
Danilo Krummrich <dakr@redhat.com> Signed-off-by:
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Danilo Krummrich authored
Commit f72c2db4 ("drm/gpuvm: rename struct drm_gpuva_manager to struct drm_gpuvm") did also change the corresponding filenames which are referenced from the documentation, but were not adjusted accordingly. Hence, fix up those filenames. Fixes: f72c2db4 ("drm/gpuvm: rename struct drm_gpuva_manager to struct drm_gpuvm") Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Closes: https://lore.kernel.org/dri-devel/20230926150725.4cca5fc5@canb.auug.org.au/Signed-off-by:
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Stanislaw Gruszka authored
Only compile ivpu_debugfs.c file with CONFIG_DEBUG_FS. Reviewed-by:
Jeffrey Hugo <quic_jhugo@quicinc.com> Signed-off-by:
Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230907072610.433497-2-stanislaw.gruszka@linux.intel.com
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Stanislaw Gruszka authored
Use new drm debugfs helpers. This is needed after changes from commit 78346ebf9f94 ("drm/debugfs: drop debugfs_init() for the render and accel node v2"). Reviewed-by: -
Justin Stitt authored
`strncpy` is deprecated for use on NUL-terminated destination strings [1]. We should prefer more robust and less ambiguous string interfaces. Since `chan->base.name` is expected to be NUL-terminated, a suitable replacement is `strscpy` [2] due to the fact that it guarantees NUL-termination on the destination buffer without also unnecessarily NUL-padding (since `chan` is kzalloc'd already). Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90 Cc: linux-hardening@vger.kernel.org Signed-off-by:
Justin Stitt <justinstitt@google.com> Reviewed-by:
Kees Cook <keescook@chromium.org> Signed-off-by:
Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230919-drivers-gpu-drm-gma500-oaktrail_lvds_i2c-c-v2-1-9ebe6983b4cb@google.com
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- 25 Sep, 2023 6 commits
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Danilo Krummrich authored
Rename struct drm_gpuvm within struct nouveau_uvmm from 'umgr' to base. Reviewed-by:
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Danilo Krummrich authored
Currently, the DRM GPUVM does not have any core dependencies preventing a module build. Also, new features from subsequent patches require helpers (namely drm_exec) which can be built as module. Reviewed-by:
Christian König <christian.koenig@amd.com> Reviewed-by:
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Danilo Krummrich authored
Rename struct drm_gpuva_manager to struct drm_gpuvm including corresponding functions. This way the GPUVA manager's structures align very well with the documentation of VM_BIND [1] and VM_BIND locking [2]. It also provides a better foundation for the naming of data structures and functions introduced for implementing a common dma-resv per GPU-VM including tracking of external and evicted objects in subsequent patches. [1] Documentation/gpu/drm-vm-bind-async.rst [2] Documentation/gpu/drm-vm-bind-locking.rst Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Acked-by:
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Douglas Anderson authored
Based on grepping through the source code this driver appears to be missing a call to drm_atomic_helper_shutdown() at system shutdown time. Among other things, this means that if a panel is in use that it won't be cleanly powered off at system shutdown time. The fact that we should call drm_atomic_helper_shutdown() in the case of OS shutdown/restart comes straight out of the kernel doc "driver instance overview" in drm_drv.c. Suggested-by:
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Xin Ji authored
For the no-interrupt design (sink device is panel, polling HPD status when chip power on), anx7625 FW has more than 200ms HPD de-bounce time in FW, for the safety to get HPD status, driver better to wait 200ms before HPD detection after OS resume back. Signed-off-by:
Xin Ji <xji@analogixsemi.com> Reviewed-by:
Robert Foss <rfoss@kernel.org> Signed-off-by:
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Janne Grunau authored
Multiple power domains need to be handled explicitly in each driver. The driver core can not handle it automatically since it is not aware of power sequencing requirements the hardware might have. This is not a problem for simpledrm since everything is expected to be powered on by the bootloader. simpledrm has just ensure it remains powered on during its lifetime. This is required on Apple silicon M2 and M2 Pro/Max/Ultra desktop systems. The HDMI output initialized by the bootloader requires keeping the display controller and a DP phy power domain on. Signed-off-by:
Janne Grunau <j@jannau.net> Reviewed-by:
Eric Curtin <ecurtin@redhat.com> Reviewed-by:
Neal Gompa <neal@gompa.dev> Reviewed-by:
Sven Peter <sven@svenpeter.dev> Reviewed-by:
Javier Martinez Canillas <javierm@redhat.com> Signed-off-by:
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- 22 Sep, 2023 8 commits
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Pranjal Ramajor Asha Kanojiya authored
Once a BO is attached with slicing configuration that BO can only be used for that particular setting. With this new feature user can detach slicing configuration off an already sliced BO and attach new slicing configuration using QAIC_ATTACH_SLICE_BO. This will support BO recycling. detach_slice_bo() detaches slicing configuration from a BO. This new helper function can also be used in release_dbc() as we are doing the exact same thing. Signed-off-by:
Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com> Reviewed-by:
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Pranjal Ramajor Asha Kanojiya authored
This makes sure that we have a single place to initialize and re-initialize BO. Use this new API to cleanup release_dbc() We will need this for next patch to detach slicing to a BO. Signed-off-by:
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Pranjal Ramajor Asha Kanojiya authored
Variables that are set while adding the corresponding BO in transfer list should be cleaned when flushing them out of transfer list prematurely. After this patch we do not need some of the cleanup done in release_dbc() This patch would also pave the way to have a central location to clean BO, during an undesired situation. Signed-off-by:
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Pranjal Ramajor Asha Kanojiya authored
qaic_attach_slicing_bo() updates slicing config on BO. Use the existing function qaic_free_slices_bo() to remove slicing config done in qaic_attach_slicing_bo(). Use qaic_free_slices_bo() to cleanup release_dbc() This would be helpful when we introduce a new IOCTL to detach slicing configuration onto a BO. Signed-off-by:
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Pranjal Ramajor Asha Kanojiya authored
Once the BO is declared 'sliced' by setting bo->sliced to true we can perform DMA (QAIC_EXECUTE_BO) operation on that BO. Hence we should declare a BO sliced after completing all the operations. Adding BO to its respective DBC list in qaic_attach_slicing_bo() seems out of place as qaic_attach_slicing_bo() should just update BO with slicing configuration. Signed-off-by:
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Pranjal Ramajor Asha Kanojiya authored
Update/Clean up BO metadata in a central location, this will help maintain the code and looks cleaner. Use qaic_unprepare_bo() to cleanup release_dbc() Next few patches will be implementing detach IOCTL which will leverage this patch. Signed-off-by:
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Pranjal Ramajor Asha Kanojiya authored
->size field in struct qaic_bo stores user requested buffer size for allocate path or size of the dmabuf(PRIME). Now for allocate path driver allocates a BO of size which is PAGE_SIZE aligned, this size is already stored in base BO structure (struct drm_gem_object). So difference is ->size of struct qaic_bo stores the raw value coming from user and ->size in struct drm_gem_object stores the PAGE_SZIE aligned size. Do not use ->size from struct qaic_bo for any validation or operation instead use ->size from struct drm_gem_object since we already have allocated that much memory then why not use it. Only validate if user is trying to use more then the BO size. This make the driver more flexible. After this change ->size field of struct qaic_bo becomes redundant. Remove it. Signed-off-by:
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Javier Martinez Canillas authored
The driver uses a naming convention where functions for struct drm_*_funcs callbacks are named ssd130x_$object_$operation, while the callbacks for struct drm_*_helper_funcs are named ssd130x_$object_helper_$operation. The idea is that this helper_ prefix in the function names denote that are for struct drm_*_helper_funcs callbacks. This convention was copied from other drivers when ssd130x was written, but Maxime pointed out that is the exception rather than the norm. So let's get rid of the _helper prefixes from the function handlers names. Suggested-by:
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- 21 Sep, 2023 8 commits
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Ville Syrjälä authored
There are some weird EDIDs floating around that have the sync pulse extending beyond the end of the blanking period. On the currently problemtic machine (HP Omni 120) EDID reports the following mode: "1600x900": 60 108000 1600 1780 1860 1800 900 910 913 1000 0x40 0x5 which is then "corrected" to have htotal=1861 by the current drm_edid.c code. The fixup code was originally added in commit 7064fef5 ("drm: work around EDIDs with bad htotal/vtotal values"). Googling around we end up in https://bugs.launchpad.net/ubuntu/hardy/+source/xserver-xorg-video-intel/+bug/297245 where we find an EDID for a Dell Studio 15, which reports: (II) VESA(0): clock: 65.0 MHz Image Size: 331 x 207 mm (II) VESA(0): h_active: 1280 h_sync: 1328 h_sync_end 1360 h_blank_end 1337 h_border: 0 (II) VESA(0): v_active: 800 v_sync: 803 v_sync_end 809 v_blanking: 810 v_border: 0 Note that if we use the hblank size (as opposed of the hsync_end) from the DTD to determine htotal we get exactly 60Hz refresh rate in both cases, whereas using hsync_end to determine htotal we get a slightly lower refresh rates. This makes me believe the using the hblank size is what was intended even in those cases. Also note that in case of the HP Onmi 120 the VBIOS boots with these: crtc timings: 108000 1600 1780 1860 1800 900 910 913 1000, type: 0x40 flags: 0x5 ie. it just blindly stuffs the bogus hsync_end and htotal from the DTD into the transcoder timing registers, and the display works. I believe the (at least more modern) hardware will automagically terminate the hsync pulse when the timing generator reaches htotal, which again points that we should use the hblank size to determine htotal. Unfortunatley the old bug reports for the Dell machines are extremely lacking in useful details so we have no idea what kind of timings the VBIOS programmed into the hardware :( Let's just flip this quirk around and reduce the length of the sync pulse instead of extending the blanking period. This at least seems to be the correct thing to do on more modern hardware. And if any issues crop up on older hardware we need to debug them properly. v2: Add debug message breadcrumbs (Jani) Reviewed-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230920211934.14920-1-ville.syrjala@linux.intel.com
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Douglas Anderson authored
Based on grepping through the source code this driver appears to be missing a call to drm_atomic_helper_shutdown() at system shutdown time and at driver unbind time. Among other things, this means that if a panel is in use that it won't be cleanly powered off at system shutdown time. The fact that we should call drm_atomic_helper_shutdown() in the case of OS shutdown/restart and at driver remove (or unbind) time comes straight out of the kernel doc "driver instance overview" in drm_drv.c. I have attempted to put this in the right place at unbind time. In most other DRM drivers the call is made right after the call to drm_kms_helper_poll_fini(), so I've put it there. That means that this call will also be made in the case that we hit errors in bind, since kirin_drm_kms_cleanup() is called both in the bind error path and in unbind. I believe this is harmless even though it's not needed in the bind error path. For handling shutdown, we rely on the common technique of seeing if the drvdata is NULL to know whether we need to call drm_atomic_helper_shutdown(). This makes it important to make sure that the drvdata is NULL if bind failed or if unbind was called. We don't need the actual check for NULL and we'll rely on the patch ("drm/atomic-helper: drm_atomic_helper_shutdown(NULL) should be a noop"). Suggested-by: -
Douglas Anderson authored
Based on grepping through the source code these drivers appear to be missing a call to drm_atomic_helper_shutdown() at system shutdown time and at driver remove (or unbind) time. Among other things, this means that if a panel is in use that it won't be cleanly powered off at system shutdown time. The fact that we should call drm_atomic_helper_shutdown() in the case of OS shutdown/restart and at driver remove (or unbind) time comes straight out of the kernel doc "driver instance overview" in drm_drv.c. A few notes about these fixes: - I confirmed that these drivers were all DRIVER_MODESET type drivers, which I believe makes this relevant. - I confirmed that these drivers were all DRIVER_ATOMIC. - When adding drm_atomic_helper_shutdown() to the remove/unbind path, I added it after drm_kms_helper_poll_fini() when the driver had it. This seemed to be what other drivers did. If drm_kms_helper_poll_fini() wasn't there I added it straight after drm_dev_unregister(). - This patch deals with drivers using the component model in similar ways as the patch ("drm: Call drm_atomic_helper_shutdown() at shutdown time for misc drivers") - These fixes rely on the patch ("drm/atomic-helper: drm_atomic_helper_shutdown(NULL) should be a noop") to simplify shutdown. Suggested-by:Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # tilcdc Acked-by:
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Douglas Anderson authored
Based on grepping through the source code, this driver appears to be missing a call to drm_atomic_helper_shutdown() at remove time. Let's add it. The fact that we should call drm_atomic_helper_shutdown() in the case of OS driver remove comes straight out of the kernel doc "driver instance overview" in drm_drv.c. Suggested-by:
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Douglas Anderson authored
Based on grepping through the source code these drivers appear to be missing a call to drm_atomic_helper_shutdown() at system shutdown time. Among other things, this means that if a panel is in use that it won't be cleanly powered off at system shutdown time. The fact that we should call drm_atomic_helper_shutdown() in the case of OS shutdown/restart comes straight out of the kernel doc "driver instance overview" in drm_drv.c. Suggested-by:
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Douglas Anderson authored
Based on grepping through the source code these drivers appear to be missing a call to drm_atomic_helper_shutdown() at system shutdown time. Among other things, this means that if a panel is in use that it won't be cleanly powered off at system shutdown time. The fact that we should call drm_atomic_helper_shutdown() in the case of OS shutdown/restart comes straight out of the kernel doc "driver instance overview" in drm_drv.c. All of the drivers in this patch were fairly straightforward to fix since they already had a call to drm_atomic_helper_shutdown() at remove/unbind time but were just lacking one at system shutdown. The only hitch is that some of these drivers use the component model to register/unregister their DRM devices. The shutdown callback is part of the original device. The typical solution here, based on how other DRM drivers do this, is to keep track of whether the device is bound based on drvdata. In most cases the drvdata is the drm_device, so we can just make sure it is NULL when the device is not bound. In some drivers, this required minor code changes. To make things simpler, drm_atomic_helper_shutdown() has been modified to consider a NULL drm_device as a noop in the patch ("drm/atomic-helper: drm_atomic_helper_shutdown(NULL) should be a noop"). Suggested-by:Jernej Skrabec <jernej.skrabec@gmail.com> Reviewed-by:
Sui Jingfeng <suijingfeng@loongson.cn> Tested-by:
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Douglas Anderson authored
Based on grepping through the source code this driver appears to be missing a call to drm_atomic_helper_shutdown() at system shutdown time. Among other things, this means that if a panel is in use that it won't be cleanly powered off at system shutdown time. The fact that we should call drm_atomic_helper_shutdown() in the case of OS shutdown/restart comes straight out of the kernel doc "driver instance overview" in drm_drv.c. This driver was fairly easy to update. The drm_device is stored in the drvdata so we just have to make sure the drvdata is NULL whenever the device is not bound. To make things simpler, drm_atomic_helper_shutdown() has been modified to consider a NULL drm_device as a noop in the patch ("drm/atomic-helper: drm_atomic_helper_shutdown(NULL) should be a noop"). Suggested-by: -
Maxime Ripard authored
The GMA500 driver has been handled through drm-misc for a while but the git repo hasn't been updated. Make sure it points to the right place. Acked-by:
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- 20 Sep, 2023 4 commits
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AngeloGioacchino Del Regno authored
When external bridges are attached with DRM_BRIDGE_ATTACH_NO_CONNECTOR, the panel bridge may also get the same flag, but in the .attach() callback for the panel bridge a device link is added only when this flag is not present; To make things worse, the .detach() callback tries to delete the device link unconditionally and without checking if it was created in the first place, crashing the kernel with a NULL pointer kernel panic upon calling panel_bridge_detach(). Fix that by moving the device_link_add() call before checking if the DRM_BRIDGE_ATTACH_NO_CONNECTOR flag is present. Fixes: 199cf07e ("drm/bridge: panel: Add a device link between drm device and panel device") Signed-off-by:
AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by:
Liu Ying <victor.liu@nxp.com> Signed-off-by:
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Tvrtko Ursulin authored
With the typical model where the display server opens the file descriptor and then hands it over to the client(*), we were showing stale data in debugfs. Fix it by updating the drm_file->pid on ioctl access from a different process. The field is also made RCU protected to allow for lockless readers. Update side is protected with dev->filelist_mutex. Before: $ cat /sys/kernel/debug/dri/0/clients command pid dev master a uid magic Xorg 2344 0 y y 0 0 Xorg 2344 0 n y 0 2 Xorg 2344 0 n y 0 3 Xorg 2344 0 n y 0 4 After: $ cat /sys/kernel/debug/dri/0/clients command tgid dev master a uid magic Xorg 830 0 y y 0 0 xfce4-session 880 0 n y 0 1 xfwm4 943 0 n y 0 2 neverball 1095 0 n y 0 3 *) More detailed and historically accurate description of various handover implementation kindly provided by Emil Velikov: """ The traditional model, the server was the orchestrator managing the primary device node. From the fd, to the master status and authentication. But looking at the fd alone, this has varied across the years. IIRC in the DRI1 days, Xorg (libdrm really) would have a list of open fd(s) and reuse those whenever needed, DRI2 the client was responsible for open() themselves and with DRI3 the fd was passed to the client. Around the inception of DRI3 and systemd-logind, the latter became another possible orchestrator. Whereby Xorg and Wayland compositors could ask it for the fd. For various reasons (hysterical and genuine ones) Xorg has a fallback path going the open(), whereas Wayland compositors are moving to solely relying on logind... some never had fallback even. Over the past few years, more projects have emerged which provide functionality similar (be that on API level, Dbus, or otherwise) to systemd-logind. """ v2: * Fixed typo in commit text and added a fine historical explanation from Emil. Signed-off-by:Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: Daniel Vetter <daniel@ffwll.ch> Acked-by:
Emil Velikov <emil.l.velikov@gmail.com> Reviewed-by:
Rob Clark <robdclark@gmail.com> Tested-by:
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Tomi Valkeinen authored
The DSI horizontal timing calculations done by the driver seem to often lead to underflows or overflows, depending on the videomode. There are two main things the current driver doesn't seem to get right: DSI HSW and HFP, and VSDly. However, even following Toshiba's documentation it seems we don't always get a working display. This patch attempts to fix the horizontal timings for DSI event mode, and on a system with a DSI->HDMI encoder, a lot of standard HDMI modes now seem to work. The work relies on Toshiba's documentation, but also quite a bit on empirical testing. This also adds timing related debug prints to make it easier to improve on this later. The DSI pulse mode has only been tested with a fixed-resolution panel, which limits the testing of different modes on DSI pulse mode. However, as the VSDly calculation also affects pulse mode, so this might cause a regression. Reviewed-by:
Peter Ujfalusi <peter.ujfalusi@gmail.com> Tested-by:
Marcel Ziswiler <marcel.ziswiler@toradex.com> Tested-by: Maxim Schwalm <maxim.schwalm@gmail.com> # Asus TF700T Signed-off-by:
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Tomi Valkeinen authored
The tc358768_ns_to_cnt() is, most likely, supposed to do a div-round-up operation, but it misses subtracting one from the dividend. Fix this by just using DIV_ROUND_UP(). Fixes: ff1ca639 ("drm/bridge: Add tc358768 driver") Reviewed-by:
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