- 21 Nov, 2023 1 commit
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Abhinav Singh authored
Fix a sparse warning with this message "warning:dereference of noderef expression". In this context it means we are dereferencing a __rcu tagged pointer directly. We should not be directly dereferencing a rcu pointer. To get a normal (non __rcu tagged pointer) from a __rcu tagged pointer we are using the function unrcu_pointer(...). The non __rcu tagged pointer then can be dereferenced just like a normal pointer. I tested with qemu with this command qemu-system-x86_64 \ -m 2G \ -smp 2 \ -kernel bzImage \ -append "console=ttyS0 root=/dev/sda earlyprintk=serial net.ifnames=0" \ -drive file=bullseye.img,format=raw \ -net user,host=10.0.2.10,hostfwd=tcp:127.0.0.1:10021-:22 \ -net nic,model=e1000 \ -enable-kvm \ -nographic \ -pidfile vm.pid \ 2>&1 | tee vm.log with lockdep enabled. Fixes: 0ec5f02f ("drm/nouveau: prevent stale fence->channel pointers, and protect with rcu") Signed-off-by:
Abhinav Singh <singhabhinav9051571833@gmail.com> Signed-off-by:
Danilo Krummrich <dakr@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231113191303.3277733-1-singhabhinav9051571833@gmail.com
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- 20 Nov, 2023 13 commits
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Johan Jonker authored
The rk3066_hdmi encoder still uses the non atomic variants of enable and disable. Convert to their atomic equivalents. In atomic mode there is no need to save the adjusted mode, so remove the mode_set function. Signed-off-by:
Johan Jonker <jbx6244@gmail.com> Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/034c3446-d619-f4c3-3aaa-ab51dc19d07f@gmail.com
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Johan Jonker authored
The mode_fixup implementation doesn't do anything, so we can simply remove it. Signed-off-by:
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Jonas Karlman authored
Add support for the 10-bit 4:2:2 and 4:4:4 formats NV20 and NV30. These formats can be tested using modetest [1]: modetest -P <plane_id>@<crtc_id>:1920x1080@<format> e.g. on a ROCK 3 Model A (rk3568): modetest -P 43@67:1920x1080@NV20 -F tiles,tiles modetest -P 43@67:1920x1080@NV30 -F smpte,smpte [1] https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/329Signed-off-by:
Jonas Karlman <jonas@kwiboo.se> Reviewed-by:
Christopher Obbard <chris.obbard@collabora.com> Tested-by:
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Kees Cook authored
strlcpy() reads the entire source buffer first. This read may exceed the destination size limit. This is both inefficient and can lead to linear read overflows if a source string is not NUL-terminated[1]. Additionally, it returns the size of the source string, not the resulting size of the destination string. In an effort to remove strlcpy() completely[2], replace strlcpy() here with strscpy(). Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy [1] Link: https://github.com/KSPP/linux/issues/89 [2] Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: "Christian König" <christian.koenig@amd.com> Cc: Azeem Shaikh <azeemshaikh38@gmail.com> Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linaro-mm-sig@lists.linaro.org Signed-off-by:
Kees Cook <keescook@chromium.org> Reviewed-by:
T.J. Mercier <tjmercier@google.com> Acked-by:
Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231116191409.work.634-kees@kernel.orgSigned-off-by:
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Chris Morgan authored
Drop the prepare/unprepare logic, as this is now tracked elsewhere since this commit [1]. [1] commit d2aacaf0 ("drm/panel: Check for already prepared/enabled in drm_panel") Signed-off-by:
Chris Morgan <macromorgan@hotmail.com> Reviewed-by:
Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20231117194405.1386265-6-macroalpha82@gmail.comSigned-off-by:
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Chris Morgan authored
The driver shutdown is duplicate as it calls drm_unprepare and drm_disable which are called anyway when associated drivers are shutdown/removed. Signed-off-by:
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Chris Morgan authored
Stop calling drm_connector_set_orientation_from_panel() as its now called by the panel bridge directly when it is initialized. Signed-off-by:
Jessica Zhang <quic_jesszhan@quicinc.com> Link: https://lore.kernel.org/r/20231117194405.1386265-4-macroalpha82@gmail.comSigned-off-by:
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Chris Morgan authored
For devices like the Anbernic RG351M and RG351P the panel is wired to an always on regulator. When the device suspends and wakes up, there are some slight artifacts on the screen that go away over time. If instead we hold the panel in reset status after it is unprepared, this does not happen. Fixes: 5b660336 ("drm/panel: add panel driver for Elida KD35T133 panels") Signed-off-by:
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Chris Morgan authored
The comments at the top of the driver state the panel size incorrectly as 5.5" instead of 3.5". Signed-off-by:
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Chris Morgan authored
Refactor the driver to add support for the powkiddy,rk2023-panel panel. This panel is extremely similar to the rg353p-panel but requires a smaller vertical back porch and isn't as tolerant of higher speeds. Note that while all of these panels are identical in size (70x57) it is possible future panels may not be. Tested on my RG351V, RG353P, RG353V, and RK2023. Signed-off-by:
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Chris Morgan authored
Improve the panel's ability to restore from suspend by holding the panel in suspend after unprepare. Fixes: b1d39f0f ("drm/panel: Add NewVision NV3051D MIPI-DSI LCD panel") Signed-off-by:
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Chris Morgan authored
Update the NewVision NV3051D compatible strings by adding a new panel, the powkiddy,rk2023-panel, and removing another entry, the anbernic,rg353v-panel. The rk2023-panel is similar to the rg353p-panel but has slightly different timings so it needs a new string. The rg353v-panel is duplicate to the rg353p-panel, so remove it. No current devices use it and changes to the driver mean it is no longer valid as a compatible string. Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20231117202536.1387815-2-macroalpha82@gmail.comSigned-off-by:
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Luben Tuikov authored
drm_{err,warn,...}() use __drm_printk() which takes a drm device pointer and uses the embedded device pointer to print the device. This facility handles NULL device pointer, but not NULL drm device pointer. This patch makes __drm_printk() also handle a NULL drm device pointer. The printed output is identical to if drm->dev had been NULL. Signed-off-by:Luben Tuikov <ltuikov89@gmail.com> Reviewed-by:
Jani Nikula <jani.nikula@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231117035427.68125-2-ltuikov89@gmail.com
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- 17 Nov, 2023 1 commit
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Jeffrey Hugo authored
MAX_ORDER was redefined so that valid allocations to the page allocator are in the range of 0..MAX_ORDER, inclusive in the commit 23baf831 ("mm, treewide: redefine MAX_ORDER sanely"). We are treating MAX_ORDER as an exclusive value, and thus could be requesting larger allocations. Update our use to match the redefinition of MAX_ORDER. Signed-off-by:
Jeffrey Hugo <quic_jhugo@quicinc.com> Reviewed-by:
Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com> Reviewed-by:
Carl Vanderlip <quic_carlv@quicinc.com> Reviewed-by:
Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231103153302.20642-1-quic_jhugo@quicinc.com
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- 16 Nov, 2023 5 commits
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Jacek Lawrynowicz authored
Remove job_done thread and replace it with generic callback based mechanism. Signed-off-by:
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Stanislaw Gruszka authored
Change to use work for timeout detection. Needed for thread_irq conversion. Signed-off-by:
Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> Signed-off-by:
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Stanislaw Gruszka authored
This allow to simplify ivpu_ipc_receive() as now we do not have to process all messages in aborted state - they will be freed in ivpu_ipc_consumer_del(). Signed-off-by:
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Stanislaw Gruszka authored
ivpu_ipc_dispatch is always called with irqs disabled. Add lockdep assertion and remove unneeded _irqsave/_irqrestore. Signed-off-by:
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Stanislaw Gruszka authored
Now the cons->rx_msg_lock also protects 'abort' field so rename the lock. Signed-off-by:
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- 15 Nov, 2023 4 commits
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Thomas Zimmermann authored
Do not acquire a reference on the module that provides a client's callback functions in drm_client_init(). The additional reference prevents the user from unloading the callback functions' module and thus creating dangling pointers. This is only necessary if there is no direct dependency between the caller of drm_client_init() and the provider of the callbacks in struct drm_client_funcs. If this case ever existed, it has been removed from the DRM code. Callers of drm_client_init() also provide the callback implementation. The lifetime of the clients is tied to the dependency chain's outer-most module, which is the hardware's DRM driver. Before client helpers could be unloaded, the driver module would have to be unloaded, which also unregisters all clients. Driver modules that set up DRM clients can now be unloaded. Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Acked-by:
Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231102131056.7256-2-tzimmermann@suse.de
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Marco Pagani authored
Rearrange entries in Kconfig and Makefile alphabetically to make room for additional KUnit test suites. Signed-off-by:
Marco Pagani <marpagan@redhat.com> Signed-off-by:
Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231115103537.220760-1-marpagan@redhat.com
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Maxime Ripard authored
Let's kickstart the v6.8 release cycle. Signed-off-by: -
Dmitry Osipenko authored
The strncpy_from_user() returns number of copied bytes and not zero on success. The non-zero return value of ioctl is treated as error. Return zero on success instead of the number of copied bytes. Fixes: 7add8012 ("drm/uapi: add explicit virtgpu context debug name") Signed-off-by:
Dmitry Osipenko <dmitry.osipenko@collabora.com> Reviewed-by:
Gurchetan Singh <gurchetansingh@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231111224236.890431-1-dmitry.osipenko@collabora.com
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- 14 Nov, 2023 10 commits
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Michał Winiarski authored
Widely used variable names can be used by macro users, potentially leading to name collisions. Suffix locals used inside the macros with an underscore, to reduce the collision potential. Suggested-by:
Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by:
Michał Winiarski <michal.winiarski@intel.com> Reviewed-by:
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Thomas Zimmermann authored
Say that drm_flip_work_commit() is safe to call in atomic context. Turn the name into a hyperlink. Suggested-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
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Thomas Zimmermann authored
Contain struct drm_flip_task and its helper functions drm_flip_work_allocate_task() and drm_flip_work_queue_task() within drm_flip_work.c There are no callers outside of the flip-work code. Signed-off-by:
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Thomas Zimmermann authored
Preallocate the format-conversion state's storage in the plane's atomic_check function if a format conversion is necessary. Allows the update to fail if no memory is available. Avoids the same allocation within atomic_update, which may not fail. v6: * update patch for ssd132x support Signed-off-by:
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Thomas Zimmermann authored
Preallocate the format-conversion state's storage in the plane's atomic_check function if a format conversion is necessary. Allows the update to fail if no memory is available. Avoids the same allocation within atomic_update, which may not fail. Also inline drm_plane_helper_atomic_check() into the driver and thus return early for invisible planes. Avoids memory allocation entirely in this case. Signed-off-by:
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Thomas Zimmermann authored
Preallocate the format-conversion state's storage in the plane's atomic_check function if a format conversion is necessary. Allows the update to fail if no memory is available. Avoids the same allocation within atomic_update, which may not fail. Signed-off-by:
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Thomas Zimmermann authored
Pass an instance of struct drm_format_conv_state to DRM's format conversion helpers. Update all callers. Most drivers can use the format-conversion state from their shadow- plane state. The shadow plane's destroy function releases the allocated buffer. Drivers will later be able to allocate a buffer of appropriate size in their plane's atomic_check code. The gud driver uses a separate thread for committing updates. For now, the update worker contains its own format-conversion state. Images in the format-helper tests are small. The tests preallocate a static page for the temporary buffer. Unloading the module releases the memory. v6: * update patch for ssd132x support v5: * avoid using unusupported shadow-plane state in repaper (Noralf) * fix documentation (Noralf, kernel test robot) v3: * store buffer in shadow-plane state (Javier, Maxime) * replace ARRAY_SIZE() with sizeof() (Jani) Signed-off-by:
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Thomas Zimmermann authored
Store an instance of struct drm_format_conv_state in the shadow-plane state struct drm_shadow_plane_state. Many drivers with shadow planes use DRM's format helpers to copy or convert the framebuffer data to backing storage in the scanout buffer. The shadow plane provides the necessary state and manages the conversion's intermediate buffer memory. Signed-off-by:
Noralf Trønnes <noralf@tronnes.org> Tested-by:
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Thomas Zimmermann authored
Hold temporary memory for format conversion in an instance of struct drm_format_conv_state. Update internal helpers of DRM's format-conversion code accordingly. Drivers will later be able to maintain this cache by themselves. Besides caching, struct drm_format_conv_state will be useful to hold additional information for format conversion, such as palette data or foreground/background colors. This will enable conversion from indexed color formats to component-based formats. v5: * improve documentation (Javier, Noralf) v3: * rename struct drm_xfrm_buf to struct drm_format_conv_state (Javier) * remove managed cleanup * add drm_format_conv_state_copy() for shadow-plane support Signed-off-by:
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Luben Tuikov authored
From Jani: The drm_print.[ch] facilities use very few pr_*() calls directly. The users of pr_*() calls do not necessarily include <drm/drm_print.h> at all, and really don't have to. Even the ones that do include it, usually have <linux/...> includes first, and <drm/...> includes next. Notably, <linux/kernel.h> includes <linux/printk.h>. And, of course, <linux/printk.h> defines pr_fmt() itself if not already defined. No, it's encouraged not to use pr_*() at all, and prefer drm device based logging, or device based logging. This reverts commit 36245bd0. Signed-off-by:
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- 13 Nov, 2023 6 commits
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Danilo Krummrich authored
Currently the DRM GPUVM offers common infrastructure to track GPU VA allocations and mappings, generically connect GPU VA mappings to their backing buffers and perform more complex mapping operations on the GPU VA space. However, there are more design patterns commonly used by drivers, which can potentially be generalized in order to make the DRM GPUVM represent a basis for GPU-VM implementations. In this context, this patch aims at generalizing the following elements. 1) Provide a common dma-resv for GEM objects not being used outside of this GPU-VM. 2) Provide tracking of external GEM objects (GEM objects which are shared with other GPU-VMs). 3) Provide functions to efficiently lock all GEM objects dma-resv the GPU-VM contains mappings of. 4) Provide tracking of evicted GEM objects the GPU-VM contains mappings of, such that validation of evicted GEM objects is accelerated. 5) Provide some convinience functions for common patterns. Big thanks to Boris Brezillon for his help to figure out locking for drivers updating the GPU VA space within the fence signalling path. Acked-by:
Boris Brezillon <boris.brezillon@collabora.com> Reviewed-by:
Thomas Hellström <thomas.hellstrom@linux.intel.com> Suggested-by:
Matthew Brost <matthew.brost@intel.com> Signed-off-by:
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Danilo Krummrich authored
Add an abstraction layer between the drm_gpuva mappings of a particular drm_gem_object and this GEM object itself. The abstraction represents a combination of a drm_gem_object and drm_gpuvm. The drm_gem_object holds a list of drm_gpuvm_bo structures (the structure representing this abstraction), while each drm_gpuvm_bo contains list of mappings of this GEM object. This has multiple advantages: 1) We can use the drm_gpuvm_bo structure to attach it to various lists of the drm_gpuvm. This is useful for tracking external and evicted objects per VM, which is introduced in subsequent patches. 2) Finding mappings of a certain drm_gem_object mapped in a certain drm_gpuvm becomes much cheaper. 3) Drivers can derive and extend the structure to easily represent driver specific states of a BO for a certain GPUVM. The idea of this abstraction was taken from amdgpu, hence the credit for this idea goes to the developers of amdgpu. Cc: Christian König <christian.koenig@amd.com> Acked-by:
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Danilo Krummrich authored
Implement reference counting for struct drm_gpuvm. Acked-by:
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Danilo Krummrich authored
Allocate struct nouveau_uvmm separately in preparation for subsequent commits introducing reference counting for struct drm_gpuvm. While at it, get rid of nouveau_uvmm_init() as indirection of nouveau_uvmm_ioctl_vm_init() and perform some minor cleanups. Reviewed-by:
Dave Airlie <airlied@redhat.com> Signed-off-by:
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Danilo Krummrich authored
Introduce flags for struct drm_gpuvm, this required by subsequent commits. Acked-by:
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Danilo Krummrich authored
DRM GEM objects private to a single GPUVM can use a shared dma-resv. Make use of the shared dma-resv of GPUVM rather than a driver specific one. The shared dma-resv originates from a "root" GEM object serving as container for the dma-resv to make it compatible with drm_exec. In order to make sure the object proving the shared dma-resv can't be freed up before the objects making use of it, let every such GEM object take a reference on it. Reviewed-by:
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