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2023-07-31fbdev: Use _DMAMEM_ infix for DMA-memory helpersThomas Zimmermann2-3/+3
Change the infix for fbdev's DMA-memory helpers from _DMA_ to _DMAMEM_. The helpers perform operations within DMA-able memory, but they don't perform DMA operations. Naming should make this clear. Adapt all users. No functional changes. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Helge Deller <deller@gmx.de> Link: https://patchwork.freedesktop.org/patch/msgid/20230729193157.15446-4-tzimmermann@suse.de
2023-07-24drm/omapdrm: Set fbdev FBINFO_VIRTFB flagThomas Zimmermann1-0/+1
Mark the framebuffer with FBINFO_VIRTFB. The framebuffer range is in DMA-able memory and should be accessed with the CPU's regular memory ops. v2: * drop FBINFO_DEFAULT Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Maxime Ripard <mripard@kernel.org> Cc: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230707083422.18691-11-tzimmermann@suse.de
2023-07-24drm/omapdrm: Use GEM mmap for fbdev emulationThomas Zimmermann2-3/+14
The fbdev emulation currently uses fbdev's default mmap code, which has been written for I/O memory. Provide an mmap that uses GEM's mmap infrastructure. Utilize fine-grained fbdev macros to initialize struct fb_ops. The macros set the read/write and the draw callbacks for DMA memory. Set the fb_mmap callback to omapdrm's new mmap helper. Also select the correct Kconfig token for fbdev's DMA helpers. Note that the DMA helpers are the same as for system memory. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Maxime Ripard <mripard@kernel.org> Cc: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230707083422.18691-10-tzimmermann@suse.de
2023-07-24drm/omapdrm: Set VM flags in GEM-object mmap functionThomas Zimmermann4-38/+8
Use the mmap callback in struct drm_gem_object_funcs to set the VM flags. Replace a number of mmap helpers in omapdrm with their GEM helper counterparts. Generate DRM's file-operations instance with GEM's DEFINE_DRM_GEM_FOPS. The omapdrm driver uses DRM's drm_gem_mmap() helper to prepare the VMA structure. It then modifies the resulting VMA state in its own helper omap_gem_mmap_obj(). The patch improves this by setting up the VMA in the mmap callback in drm_gem_object_funcs, which is called from within drm_gem_mmap(). Omapdrm's omap_gem_mmap() and omap_gem_mmap() can then be removed from the driver. A call to drm_gem_mmap() is sufficient for the mmap operation. Finally, with the omap functions gone, the drivers file_ops in omapdriver_fops can be generated with DEFINE_DRM_GEM_FOPS, which sets DRM's default helpers. v2: * detailed commit message (Javier) * do not set VM_PFNMAP Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Maxime Ripard <mripard@kernel.org> Cc: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230707083422.18691-9-tzimmermann@suse.de
2023-07-17Merge tag 'drm-misc-next-2023-07-13' of ↵Daniel Vetter9-34/+17
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for v6.6: UAPI Changes: * fbdev: * Make fbdev userspace interfaces optional; only leaves the framebuffer console active * prime: * Support dma-buf self-import for all drivers automatically: improves support for many userspace compositors Cross-subsystem Changes: * backlight: * Fix interaction with fbdev in several drivers * base: Convert struct platform.remove to return void; part of a larger, tree-wide effort * dma-buf: Acquire reservation lock for mmap() in exporters; part of an on-going effort to simplify locking around dma-bufs * fbdev: * Use Linux device instead of fbdev device in many places * Use deferred-I/O helper macros in various drivers * i2c: Convert struct i2c from .probe_new to .probe; part of a larger, tree-wide effort * video: * Avoid including <linux/screen_info.h> Core Changes: * atomic: * Improve logging * prime: * Remove struct drm_driver.gem_prime_mmap plus driver updates: all drivers now implement this callback with drm_gem_prime_mmap() * gem: * Support execution contexts: provides locking over multiple GEM objects * ttm: * Support init_on_free * Swapout fixes Driver Changes: * accel: * ivpu: MMU updates; Support debugfs * ast: * Improve device-model detection * Cleanups * bridge: * dw-hdmi: Improve support for YUV420 bus format * dw-mipi-dsi: Fix enable/disable of DSI controller * lt9611uxc: Use MODULE_FIRMWARE() * ps8640: Remove broken EDID code * samsung-dsim: Fix command transfer * tc358764: Handle HS/VS polarity; Use BIT() macro; Various cleanups * Cleanups * ingenic: * Kconfig REGMAP fixes * loongson: * Support display controller * mgag200: * Minor fixes * mxsfb: * Support disabling overlay planes * nouveau: * Improve VRAM detection * Various fixes and cleanups * panel: * panel-edp: Support AUO B116XAB01.4 * Support Visionox R66451 plus DT bindings * Cleanups * ssd130x: * Support per-controller default resolution plus DT bindings * Reduce memory-allocation overhead * Cleanups * tidss: * Support TI AM625 plus DT bindings * Implement new connector model plus driver updates * vkms * Improve write-back support * Documentation fixes Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20230713090830.GA23281@linux-uq9g
2023-07-11drm/client: Send hotplug event after registering a clientThomas Zimmermann1-4/+0
Generate a hotplug event after registering a client to allow the client to configure its display. Remove the hotplug calls from the existing clients for fbdev emulation. This change fixes a concurrency bug between registering a client and receiving events from the DRM core. The bug is present in the fbdev emulation of all drivers. The fbdev emulation currently generates a hotplug event before registering the client to the device. For each new output, the DRM core sends an additional hotplug event to each registered client. If the DRM core detects first output between sending the artificial hotplug and registering the device, the output's hotplug event gets lost. If this is the first output, the fbdev console display remains dark. This has been observed with amdgpu and fbdev-generic. Fix this by adding hotplug generation directly to the client's register helper drm_client_register(). Registering the client and receiving events are serialized by struct drm_device.clientlist_mutex. So an output is either configured by the initial hotplug event, or the client has already been registered. The bug was originally added in commit 6e3f17ee73f7 ("drm/fb-helper: generic: Call drm_client_add() after setup is done"), in which adding a client and receiving a hotplug event switched order. It was hidden, as most hardware and drivers have at least on static output configured. Other drivers didn't use the internal DRM client or still had struct drm_mode_config_funcs.output_poll_changed set. That callback handled hotplug events as well. After not setting the callback in amdgpu in commit 0e3172bac3f4 ("drm/amdgpu: Don't set struct drm_driver.output_poll_changed"), amdgpu did not show a framebuffer console if output events got lost. The bug got copy-pasted from fbdev-generic into the other fbdev emulation. Reported-by: Moritz Duge <MoritzDuge@kolahilft.de> Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/2649 Fixes: 6e3f17ee73f7 ("drm/fb-helper: generic: Call drm_client_add() after setup is done") Fixes: 8ab59da26bc0 ("drm/fb-helper: Move generic fbdev emulation into separate source file") Fixes: b79fe9abd58b ("drm/fbdev-dma: Implement fbdev emulation for GEM DMA helpers") Fixes: 63c381552f69 ("drm/armada: Implement fbdev emulation as in-kernel client") Fixes: 49953b70e7d3 ("drm/exynos: Implement fbdev emulation as in-kernel client") Fixes: 8f1aaccb04b7 ("drm/gma500: Implement client-based fbdev emulation") Fixes: 940b869c2f2f ("drm/msm: Implement fbdev emulation as in-kernel client") Fixes: 9e69bcd88e45 ("drm/omapdrm: Implement fbdev emulation as in-kernel client") Fixes: e317a69fe891 ("drm/radeon: Implement client-based fbdev emulation") Fixes: 71ec16f45ef8 ("drm/tegra: Implement fbdev emulation as in-kernel client") Fixes: 0e3172bac3f4 ("drm/amdgpu: Don't set struct drm_driver.output_poll_changed") Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Tested-by: Moritz Duge <MoritzDuge@kolahilft.de> Tested-by: Torsten Krah <krah.tm@gmail.com> Tested-by: Paul Schyska <pschyska@gmail.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: David Airlie <airlied@gmail.com> Cc: Noralf Trønnes <noralf@tronnes.org> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Javier Martinez Canillas <javierm@redhat.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Inki Dae <inki.dae@samsung.com> Cc: Seung-Woo Kim <sw0312.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Cc: Rob Clark <robdclark@gmail.com> Cc: Abhinav Kumar <quic_abhinavk@quicinc.com> Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Cc: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Mikko Perttunen <mperttunen@nvidia.com> Cc: dri-devel@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Cc: amd-gfx@lists.freedesktop.org Cc: linux-tegra@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: <stable@vger.kernel.org> # v5.2+ Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> # msm Link: https://patchwork.freedesktop.org/patch/msgid/20230710091029.27503-1-tzimmermann@suse.de
2023-06-26drm: Clear fd/handle callbacks in struct drm_driverThomas Zimmermann1-2/+0
Clear all assignments of struct drm_driver's fd/handle callbacks to drm_gem_prime_fd_to_handle() and drm_gem_prime_handle_to_fd(). These functions are called by default. Add a TODO item to convert vmwgfx to the defaults as well. v2: * remove TODO item (Zack) * also update amdgpu's amdgpu_partition_driver Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Simon Ser <contact@emersion.fr> Acked-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Jeffrey Hugo <quic_jhugo@quicinc.com> # qaic Link: https://patchwork.freedesktop.org/patch/msgid/20230620080252.16368-3-tzimmermann@suse.de
2023-06-21drm: Don't assert held reservation lock for dma-buf mmappingDmitry Osipenko1-2/+0
Don't assert held dma-buf reservation lock on memory mapping of exported buffer. We're going to change dma-buf mmap() locking policy such that exporters will have to handle the lock. The previous locking policy caused deadlock problem for DRM drivers in a case of self-imported dma-bufs once these drivers are moved to use reservation lock universally. The problem is solved by moving the lock down to exporters. This patch prepares DRM drivers for the locking policy update. Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230529223935.2672495-2-dmitry.osipenko@collabora.com Link: https://patchwork.freedesktop.org/patch/msgid/20230529223935.2672495-3-dmitry.osipenko@collabora.com Link: https://patchwork.freedesktop.org/patch/msgid/20230529223935.2672495-4-dmitry.osipenko@collabora.com Link: https://patchwork.freedesktop.org/patch/msgid/20230529223935.2672495-2-dmitry.osipenko@collabora.com Link: https://patchwork.freedesktop.org/patch/msgid/20230529223935.2672495-3-dmitry.osipenko@collabora.com Link: https://patchwork.freedesktop.org/patch/msgid/20230529223935.2672495-4-dmitry.osipenko@collabora.com
2023-06-08drm/omap: Convert to platform remove callback returning voidUwe Kleine-König8-30/+17
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert the omap drm driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20230507162616.1368908-35-u.kleine-koenig@pengutronix.de
2023-06-01drm/omapdrm: Use regular fbdev I/O helpersThomas Zimmermann2-8/+4
Use the regular fbdev helpers for framebuffer I/O instead of DRM's helpers. Omapdrm does not use damage handling, so DRM's fbdev helpers are mere wrappers around the fbdev code. By using fbdev helpers directly within each DRM fbdev emulation, we can eventually remove DRM's wrapper functions entirely. v4: * use initializer macros for struct fb_ops v2: * use FB_SYS_HELPERS option Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Tomi Valkeinen <tomba@kernel.org> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230530151228.22979-9-tzimmermann@suse.de
2023-04-06drm/omapdrm: Implement fbdev emulation as in-kernel clientThomas Zimmermann3-62/+90
Move code from ad-hoc fbdev callbacks into DRM client functions and remove the old callbacks. The functions instruct the client to poll for changed output or restore the display. The DRM core calls both, the old callbacks and the new client helpers, from the same places. The new functions perform the same operation as before, so there's no change in functionality. Replace all code that initializes or releases fbdev emulation throughout the driver. Instead initialize the fbdev client by a single call to omapdrm_fbdev_setup() after omapdrm has registered its DRM device. As in most drivers, omapdrm's fbdev emulation now acts like a regular DRM client. The fbdev client setup consists of the initial preparation and the hot-plugging of the display. The latter creates the fbdev device and sets up the fbdev framebuffer. The setup performs display hot-plugging once. If no display can be detected, DRM probe helpers re-run the detection on each hotplug event. A call to drm_dev_unregister() releases the client automatically. No further action is required within omapdrm. If the fbdev framebuffer has been fully set up, struct fb_ops.fb_destroy implements the release. For partially initialized emulation, the fbdev client reverts the initial setup. v2: * init drm_client in this patch (Tomi) * don't handle non-atomic modesetting (Tomi) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230403104035.15288-6-tzimmermann@suse.de
2023-04-06drm/omapdrm: Remove fbdev from struct omap_drm_privateThomas Zimmermann4-12/+6
The DRM device stores a pointer to the fbdev helper. Remove struct omap_drm_private.fbdev, which contains the same value. No functional changes. v2: * don't clear dev->fb_helper unnecessarily (Tomi) * include omap_fbdev.h in omap_fbdev.c (kernel test robot) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230403104035.15288-5-tzimmermann@suse.de
2023-04-06drm/omapdrm: Remove bo from struct omap_fbdevThomas Zimmermann1-13/+19
Fbdev's framebuffer stores a pointer to the GEM object. Remove struct omap_fbdev.bo, which contains the same value. No functional changes. v2: * fix commit message (Tomi) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230403104035.15288-4-tzimmermann@suse.de
2023-04-06drm/omapdrm: Remove fb from struct omap_fbdevThomas Zimmermann1-5/+6
Fbdev's struct fb_helper stores a pointer to the framebuffer. Remove struct omap_fbdev.fb, which contains the same value. No functional changes. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230403104035.15288-3-tzimmermann@suse.de
2023-04-06drm/omapdrm: Include <linux/of.h>Thomas Zimmermann1-0/+1
Include <linux/of.h> to get the contained declarations. No functional changes. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230403104035.15288-2-tzimmermann@suse.de
2023-03-14drm: Drop ARCH_MULTIPLATFORM from dependenciesUwe Kleine-König1-1/+1
Some of these dependencies used to be sensible when only a small part of the platforms supported by ARCH=arm could be compiled together in a single kernel image. Nowadays ARCH_MULTIPLATFORM is only used as a guard for kernel options incompatible with a multiplatform image. See commit 84fc86360623 ("ARM: make ARCH_MULTIPLATFORM user-visible") for some more details. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221209220555.3631364-1-u.kleine-koenig@pengutronix.de
2023-03-03Merge tag 'drm-next-2023-03-03-1' of git://anongit.freedesktop.org/drm/drmLinus Torvalds1-1/+1
Pull drm fixes from Dave Airlie: "fbdev: - fix uninit var in error path shmem: - revert unGPLing an export i915: - Don't use stolen memory or BAR mappings for ring buffers with LLC - Add inverted backlight quirk for HP 14-r206nv - Fix GSI offset for MCR lookups - GVT fixes (memleak, debugfs attributes, kconfig, typos) amdgpu: - SMU 13 fixes - Enable TMZ for GC 10.3.6 - Misc display fixes - Buddy allocator fixes - GC 11 fixes - S0ix fix - INFO IOCTL queries for GC 11 - VCN harvest fixes for SR-IOV - UMC 8.10 RAS fixes - Don't restrict bpc to 8 - NBIO 7.5 fix - Allow freesync on PCon for more devices amdkfd: - SDMA fix - Illegal memory access fix" * tag 'drm-next-2023-03-03-1' of git://anongit.freedesktop.org/drm/drm: (45 commits) drm/amdgpu/vcn: fix compilation issue with legacy gcc drm/amd/display: Extend Freesync over PCon support for more devices Revert "drm/amd/display: Do not set DRR on pipe commit" drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes drm/amd/display: Ext displays with dock can't recognized after resume drm/amdgpu: fix ttm_bo calltrace warning in psp_hw_fini drm/amdgpu: remove unused variable ring drm/amd/display: fix dm irq error message in gpu recover drm/amd: Fix initialization for nbio 7.5.1 drm/amd/display: Don't restrict bpc to 8 bpc drm/amdgpu: Make umc_v8_10_convert_error_address static and remove unused variable drm/radeon: Fix eDP for single-display iMac11,2 drm/shmem-helper: Revert accidental non-GPL export drm: omapdrm: Do not use helper unininitialized in omap_fbdev_init() drm/amd/pm: downgrade log level upon SMU IF version mismatch drm/amdgpu: Add ecc info query interface for umc v8_10 drm/amdgpu: Add convert_error_address function for umc v8_10 drm/amdgpu: add bad_page_threshold check in ras_eeprom_check_err drm/amdgpu: change default behavior of bad_page_threshold parameter drm/amdgpu: exclude duplicate pages from UMC RAS UE count ...
2023-02-28drm: omapdrm: Do not use helper unininitialized in omap_fbdev_init()Nathan Chancellor1-1/+1
Clang warns (or errors with CONFIG_WERROR): ../drivers/gpu/drm/omapdrm/omap_fbdev.c:235:6: error: variable 'helper' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized] if (!fbdev) ^~~~~~ ../drivers/gpu/drm/omapdrm/omap_fbdev.c:259:26: note: uninitialized use occurs here drm_fb_helper_unprepare(helper); ^~~~~~ ../drivers/gpu/drm/omapdrm/omap_fbdev.c:235:2: note: remove the 'if' if its condition is always false if (!fbdev) ^~~~~~~~~~~ ../drivers/gpu/drm/omapdrm/omap_fbdev.c:228:30: note: initialize the variable 'helper' to silence this warning struct drm_fb_helper *helper; ^ = NULL 1 error generated. Return early, as there is nothing for the function to do if memory cannot be allocated. There is no point in adding another label to just emit the warning at the end of the function in this case, as memory allocation failures are already logged. Fixes: 3fb1f62f80a1 ("drm/fb-helper: Remove drm_fb_helper_unprepare() from drm_fb_helper_fini()") Link: https://github.com/ClangBuiltLinux/linux/issues/1809 Link: https://lore.kernel.org/oe-kbuild-all/202302250058.fYTe9aTP-lkp@intel.com/ Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20230224-omapdrm-wsometimes-uninitialized-v1-1-3fec8906ee3a@kernel.org
2023-02-24Merge tag 'mm-stable-2023-02-20-13-37' of ↵Linus Torvalds1-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: - Daniel Verkamp has contributed a memfd series ("mm/memfd: add F_SEAL_EXEC") which permits the setting of the memfd execute bit at memfd creation time, with the option of sealing the state of the X bit. - Peter Xu adds a patch series ("mm/hugetlb: Make huge_pte_offset() thread-safe for pmd unshare") which addresses a rare race condition related to PMD unsharing. - Several folioification patch serieses from Matthew Wilcox, Vishal Moola, Sidhartha Kumar and Lorenzo Stoakes - Johannes Weiner has a series ("mm: push down lock_page_memcg()") which does perform some memcg maintenance and cleanup work. - SeongJae Park has added DAMOS filtering to DAMON, with the series "mm/damon/core: implement damos filter". These filters provide users with finer-grained control over DAMOS's actions. SeongJae has also done some DAMON cleanup work. - Kairui Song adds a series ("Clean up and fixes for swap"). - Vernon Yang contributed the series "Clean up and refinement for maple tree". - Yu Zhao has contributed the "mm: multi-gen LRU: memcg LRU" series. It adds to MGLRU an LRU of memcgs, to improve the scalability of global reclaim. - David Hildenbrand has added some userfaultfd cleanup work in the series "mm: uffd-wp + change_protection() cleanups". - Christoph Hellwig has removed the generic_writepages() library function in the series "remove generic_writepages". - Baolin Wang has performed some maintenance on the compaction code in his series "Some small improvements for compaction". - Sidhartha Kumar is doing some maintenance work on struct page in his series "Get rid of tail page fields". - David Hildenbrand contributed some cleanup, bugfixing and generalization of pte management and of pte debugging in his series "mm: support __HAVE_ARCH_PTE_SWP_EXCLUSIVE on all architectures with swap PTEs". - Mel Gorman and Neil Brown have removed the __GFP_ATOMIC allocation flag in the series "Discard __GFP_ATOMIC". - Sergey Senozhatsky has improved zsmalloc's memory utilization with his series "zsmalloc: make zspage chain size configurable". - Joey Gouly has added prctl() support for prohibiting the creation of writeable+executable mappings. The previous BPF-based approach had shortcomings. See "mm: In-kernel support for memory-deny-write-execute (MDWE)". - Waiman Long did some kmemleak cleanup and bugfixing in the series "mm/kmemleak: Simplify kmemleak_cond_resched() & fix UAF". - T.J. Alumbaugh has contributed some MGLRU cleanup work in his series "mm: multi-gen LRU: improve". - Jiaqi Yan has provided some enhancements to our memory error statistics reporting, mainly by presenting the statistics on a per-node basis. See the series "Introduce per NUMA node memory error statistics". - Mel Gorman has a second and hopefully final shot at fixing a CPU-hog regression in compaction via his series "Fix excessive CPU usage during compaction". - Christoph Hellwig does some vmalloc maintenance work in the series "cleanup vfree and vunmap". - Christoph Hellwig has removed block_device_operations.rw_page() in ths series "remove ->rw_page". - We get some maple_tree improvements and cleanups in Liam Howlett's series "VMA tree type safety and remove __vma_adjust()". - Suren Baghdasaryan has done some work on the maintainability of our vm_flags handling in the series "introduce vm_flags modifier functions". - Some pagemap cleanup and generalization work in Mike Rapoport's series "mm, arch: add generic implementation of pfn_valid() for FLATMEM" and "fixups for generic implementation of pfn_valid()" - Baoquan He has done some work to make /proc/vmallocinfo and /proc/kcore better represent the real state of things in his series "mm/vmalloc.c: allow vread() to read out vm_map_ram areas". - Jason Gunthorpe rationalized the GUP system's interface to the rest of the kernel in the series "Simplify the external interface for GUP". - SeongJae Park wishes to migrate people from DAMON's debugfs interface over to its sysfs interface. To support this, we'll temporarily be printing warnings when people use the debugfs interface. See the series "mm/damon: deprecate DAMON debugfs interface". - Andrey Konovalov provided the accurately named "lib/stackdepot: fixes and clean-ups" series. - Huang Ying has provided a dramatic reduction in migration's TLB flush IPI rates with the series "migrate_pages(): batch TLB flushing". - Arnd Bergmann has some objtool fixups in "objtool warning fixes". * tag 'mm-stable-2023-02-20-13-37' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (505 commits) include/linux/migrate.h: remove unneeded externs mm/memory_hotplug: cleanup return value handing in do_migrate_range() mm/uffd: fix comment in handling pte markers mm: change to return bool for isolate_movable_page() mm: hugetlb: change to return bool for isolate_hugetlb() mm: change to return bool for isolate_lru_page() mm: change to return bool for folio_isolate_lru() objtool: add UACCESS exceptions for __tsan_volatile_read/write kmsan: disable ftrace in kmsan core code kasan: mark addr_has_metadata __always_inline mm: memcontrol: rename memcg_kmem_enabled() sh: initialize max_mapnr m68k/nommu: add missing definition of ARCH_PFN_OFFSET mm: percpu: fix incorrect size in pcpu_obj_full_size() maple_tree: reduce stack usage with gcc-9 and earlier mm: page_alloc: call panic() when memoryless node allocation fails mm: multi-gen LRU: avoid futile retries migrate_pages: move THP/hugetlb migration support check to simplify code migrate_pages: batch flushing TLB migrate_pages: share more code between _unmap and _move ...
2023-02-21drm/fb-helper: Remove drm_fb_helper_unprepare() from drm_fb_helper_fini()Thomas Zimmermann1-0/+2
Move drm_fb_helper_unprepare() from drm_fb_helper_fini() into the calling fbdev implementation. Avoids a possible stale mutex with generic fbdev code. As indicated by its name, drm_fb_helper_prepare() prepares struct drm_fb_helper before setting up the fbdev support with a call to drm_fb_helper_init(). In legacy fbdev emulation, this happens next to each other. If successful, drm_fb_helper_fini() later tear down the fbdev device and also unprepare via drm_fb_helper_unprepare(). Generic fbdev emulation prepares struct drm_fb_helper immediately after allocating the instance. It only calls drm_fb_helper_init() as part of processing a hotplug event. If the hotplug-handling fails, it runs drm_fb_helper_fini(). This unprepares the fb-helper instance and the next hotplug event runs on stale data. Solve this by moving drm_fb_helper_unprepare() from drm_fb_helper_fini() into the fbdev implementations. Call it right before freeing the fb-helper instance. Fixes: 643231b28380 ("drm/fbdev-generic: Minimize hotplug error handling") Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Javier Martinez Canillas <javierm@redhat.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: David Airlie <airlied@gmail.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230216140620.17699-1-tzimmermann@suse.de
2023-02-10mm: replace vma->vm_flags direct modifications with modifier callsSuren Baghdasaryan1-2/+1
Replace direct modifications to vma->vm_flags with calls to modifier functions to be able to track flag changes and to keep vma locking correctness. [akpm@linux-foundation.org: fix drivers/misc/open-dice.c, per Hyeonggon Yoo] Link: https://lkml.kernel.org/r/20230126193752.297968-5-surenb@google.com Signed-off-by: Suren Baghdasaryan <surenb@google.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Mike Rapoport (IBM) <rppt@kernel.org> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> Reviewed-by: Liam R. Howlett <Liam.Howlett@Oracle.com> Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arjun Roy <arjunroy@google.com> Cc: Axel Rasmussen <axelrasmussen@google.com> Cc: David Hildenbrand <david@redhat.com> Cc: David Howells <dhowells@redhat.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: David Rientjes <rientjes@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Greg Thelen <gthelen@google.com> Cc: Hugh Dickins <hughd@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jann Horn <jannh@google.com> Cc: Joel Fernandes <joelaf@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Kent Overstreet <kent.overstreet@linux.dev> Cc: Laurent Dufour <ldufour@linux.ibm.com> Cc: Lorenzo Stoakes <lstoakes@gmail.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Minchan Kim <minchan@google.com> Cc: Paul E. McKenney <paulmck@kernel.org> Cc: Peter Oskolkov <posk@google.com> Cc: Peter Xu <peterx@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Punit Agrawal <punit.agrawal@bytedance.com> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Shakeel Butt <shakeelb@google.com> Cc: Soheil Hassas Yeganeh <soheil@google.com> Cc: Song Liu <songliubraving@fb.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-01-26drm/fb-helper: Initialize fb-helper's preferred BPP in prepare functionThomas Zimmermann1-2/+2
Initialize the fb-helper's preferred_bpp field early from within drm_fb_helper_prepare(); instead of the later client hot-plugging callback. This simplifies the generic fbdev setup function. No real changes, but all drivers' fbdev code has to be adapted. v3: * build with CONFIG_DRM_FBDEV_EMULATION unset (kernel test bot) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230125200415.14123-7-tzimmermann@suse.de
2023-01-17drm/omap: Fix kernel docsTomi Valkeinen2-3/+3
Fix doc related warnings seen with W=1: the function names have changed but the docs have not been changed accordingly. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220916082206.167427-2-tomi.valkeinen@ideasonboard.com Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2023-01-05drm/omap: stop using drm_bridge_connector_en/disable_hpd()Dmitry Baryshkov1-41/+0
The functionality of drm_bridge_connector_enable_hpd() and drm_bridge_connector_disable_hpd() is provided automatically by the drm_kms_poll helpers. Stop calling these functions manually. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20221102180705.459294-7-dmitry.baryshkov@linaro.org
2022-12-16drm/omap: dsi: Fix excessive stack usageTomi Valkeinen1-10/+16
dsi_dump_dsi_irqs(), a function used for debugfs prints, has a large struct in its frame, which can result in: drivers/gpu/drm/omapdrm/dss/dsi.c:1126:1: warning: the frame size of 1060 bytes is larger than 1024 bytes [-Wframe-larger-than=] As the performance of the function is of no concern, let's allocate the struct with kmalloc instead. Compile-tested only. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Link: https://patchwork.freedesktop.org/patch/msgid/20220916082206.167427-1-tomi.valkeinen@ideasonboard.com
2022-12-16drm/omapdrm: Remove unused struct csc_coef_rgb2yuvYuan Can1-5/+0
After commit 64ff18911878, struct csc_coef_rgb2yuv is not used any more and can be removed as well. Fixes: 64ff18911878 ("drm/omap: Enable COLOR_ENCODING and COLOR_RANGE properties for planes") Signed-off-by: Yuan Can <yuancan@huawei.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221014024810.21675-1-yuancan@huawei.com
2022-11-11drm: Assert held reservation lock for dma-buf mmappingDmitry Osipenko1-0/+2
When userspace mmaps dma-buf's fd, the dma-buf reservation lock must be held. Add locking sanity checks to the dma-buf mmaping callbacks of DRM drivers to ensure that the locking assumptions won't regress in future. Suggested-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Acked-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221110201349.351294-3-dmitry.osipenko@collabora.com
2022-11-05drm/fb-helper: Rename drm_fb_helper_unregister_fbi() to use _info postfixThomas Zimmermann1-1/+1
Rename drm_fb_helper_unregister_fbi() to drm_fb_helper_unregister_info() as part of unifying the naming within fbdev helpers. Adapt drivers. No functional changes. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221103151446.2638-15-tzimmermann@suse.de
2022-11-05drm/fb-helper: Rename drm_fb_helper_alloc_fbi() to use _info postfixThomas Zimmermann1-1/+1
Rename drm_fb_helper_alloc_fbi() to drm_fb_helper_alloc_info() as part of unifying the naming within fbdev helpers. Adapt drivers. No functional changes. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221103151446.2638-14-tzimmermann@suse.de
2022-11-05drm/fb_helper: Rename field fbdev to info in struct drm_fb_helperThomas Zimmermann1-1/+1
Rename struct drm_fb_helper.fbdev to info. The current name is misleading as it overlaps with generic fbdev naming conventions. Adapt to the usual naming in fbdev drivers by calling the field 'info'. No functional changes. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221103151446.2638-13-tzimmermann@suse.de
2022-10-20drm: Remove drm_mode_config::fb_baseZack Rusin1-2/+0
The fb_base in struct drm_mode_config has been unused for a long time. Some drivers set it and some don't leading to a very confusing state where the variable can't be relied upon, because there's no indication as to which driver sets it and which doesn't. The only usage of fb_base is internal to two drivers so instead of trying to force it into all the drivers to get it into a coherent state completely remove it. Signed-off-by: Zack Rusin <zackr@vmware.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Thomas Zimmermann <tzimemrmann@suse.de> Acked-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221019024401.394617-1-zack@kde.org
2022-10-18drm/omapdrm: Prepare to dynamic dma-buf locking specificationDmitry Osipenko1-2/+2
Prepare OMAP DRM driver to the common dynamic dma-buf locking convention by starting to use the unlocked versions of dma-buf API functions. Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221017172229.42269-8-dmitry.osipenko@collabora.com
2022-09-09drm/omap: dmm_tiler:Remove the print function dev_err()ye xingchen1-3/+1
From the coccinelle check: ./drivers/gpu/drm/omapdrm/omap_dmm_tiler.c Error:line 817 is redundant because platform_get_irq() already prints an error So,remove the unnecessary print function dev_err() Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220810062738.13554-1-ye.xingchen@zte.com.cn
2022-09-09drm/omap: dss: Fix refcount leak bugsLiang He1-0/+3
In dss_init_ports() and __dss_uninit_ports(), we should call of_node_put() for the reference returned by of_graph_get_port_by_id() in fail path or when it is not used anymore. Fixes: 09bffa6e5192 ("drm: omap: use common OF graph helpers") Signed-off-by: Liang He <windhl@126.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220722144348.1306569-1-windhl@126.com
2022-09-09drm: omapdrm: dss: replace ternary operator with max()Guo Zhengkui1-1/+1
Fix the following coccicheck warning: drivers/gpu/drm/omapdrm/dss/dispc.c:2454:21-22: WARNING opportunity for max() Signed-off-by: Guo Zhengkui <guozhengkui@vivo.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220517050208.121488-1-guozhengkui@vivo.com
2022-07-26drm: Remove unnecessary include statements of drm_plane_helper.hThomas Zimmermann3-3/+0
Remove the include statement for drm_plane_helper.h from all the files that don't need it. Althogh the header file is almost empty, many drivers include it somewhere. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220720083058.15371-5-tzimmermann@suse.de
2022-07-05drm: Remove linux/fb.h from drm_crtc.hVille Syrjälä1-0/+1
drm_crtc.h has no need for linux/fb.h, so don't include it. Avoids useless rebuilds of the entire universe when touching linux/fb.h. Quite a few placs do currently depend on linux/fb.h or other headers pulled in by it without actually including any of it directly. All of those need to be fixed up. v2: Split the vmwgfx change out Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220630195114.17407-3-ville.syrjala@linux.intel.com
2022-06-20drm: Drop drm_blend.h from drm_crtc.hVille Syrjälä2-0/+2
drm_crtc.h has no need for drm_blend.h, so don't include it. Avoids useless rebuilds of the entire universe when touching drm_blend.h. Quite a few placs do currently depend on drm_blend.h without actually including it directly. All of those need to be fixed up. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220613200317.11305-4-ville.syrjala@linux.intel.com Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Jani Nikula <jani.nikula@intel.com>
2022-06-20drm: Drop drm_framebuffer.h from drm_crtc.hVille Syrjälä4-0/+4
drm_crtc.h has no need for drm_frambuffer.h, so don't include it. Avoids useless rebuilds of the entire universe when touching drm_framebuffer.h. Quite a few placs do currently depend on drm_framebuffer.h without actually including it directly. All of those need to be fixed up. v2: Fix up msm some more v2: Deal with ingenic and shmobile as well Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220614095449.29311-1-ville.syrjala@linux.intel.com Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Jani Nikula <jani.nikula@intel.com>
2022-06-20drm: Drop drm_edid.h from drm_crtc.hVille Syrjälä2-0/+2
drm_crtc.h has no need for drm_edid.h, so don't include it. Avoids useless rebuilds of the entire universe when touching drm_edid.h. Quite a few placs do currently depend on drm_edid.h without actually including it directly. All of those need to be fixed up. v2: Fix up i915 and msm some more v3: Fix alphabetical ordering (Sam) Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220614090245.30283-1-ville.syrjala@linux.intel.com Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Jani Nikula <jani.nikula@intel.com>
2022-04-05Merge drm/drm-next into drm-misc-nextMaxime Ripard1-7/+1
Let's start the 5.19 development cycle. Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-03-28Merge tag 'driver-core-5.18-rc1' of ↵Linus Torvalds1-7/+1
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the set of driver core changes for 5.18-rc1. Not much here, primarily it was a bunch of cleanups and small updates: - kobj_type cleanups for default_groups - documentation updates - firmware loader minor changes - component common helper added and take advantage of it in many drivers (the largest part of this pull request). All of these have been in linux-next for a while with no reported problems" * tag 'driver-core-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (54 commits) Documentation: update stable review cycle documentation drivers/base/dd.c : Remove the initial value of the global variable Documentation: update stable tree link Documentation: add link to stable release candidate tree devres: fix typos in comments Documentation: add note block surrounding security patch note samples/kobject: Use sysfs_emit instead of sprintf base: soc: Make soc_device_match() simpler and easier to read driver core: dd: fix return value of __setup handler driver core: Refactor sysfs and drv/bus remove hooks driver core: Refactor multiple copies of device cleanup scripts: get_abi.pl: Fix typo in help message kernfs: fix typos in comments kernfs: remove unneeded #if 0 guard ALSA: hda/realtek: Make use of the helper component_compare_dev_name video: omapfb: dss: Make use of the helper component_compare_dev power: supply: ab8500: Make use of the helper component_compare_dev ASoC: codecs: wcd938x: Make use of the helper component_compare/release_of iommu/mediatek: Make use of the helper component_compare/release_of drm: of: Make use of the helper component_release_of ...
2022-03-28drm: omapdrm: Do no allocate non-scanout GEMs through DMM/TILERIvaylo Dimitrov1-4/+8
On devices with DMM, all allocations are done through either DMM or TILER. DMM/TILER being a limited resource means that such allocations will start to fail before actual free memory is exhausted. What is even worse is that with time DMM/TILER space gets fragmented to the point that even if we have enough free DMM/TILER space and free memory, allocation fails because there is no big enough free block in DMM/TILER space. Such failures can be easily observed with OMAP xorg DDX, for example - starting few GUI applications (so buffers for their windows are allocated) and then rotating landscape<->portrait while closing and opening new windows soon results in allocation failures. Fix that by mapping buffers through DMM/TILER only when really needed, like, for scanout buffers. Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/1642587791-13222-4-git-send-email-ivo.g.dimitrov.75@gmail.com
2022-03-28drm: omapdrm: Support exporting of non-contiguous GEM BOsIvaylo Dimitrov3-60/+73
Currently code allocates non-scanout BOs from SHMEM and those objects are accessible to userspace by mmap(). However, on devices with no DMM (like OMAP3), the same objects are not accessible by kernel drivers that want to render to them as code refuses to export them. In turn this means that on devices with no DMM, all buffers must be allocated as scanout, otherwise only CPU can access them. On those devices, scanout buffers are allocated from CMA, making those allocations highly unreliable. Fix that by implementing functionality to export SHMEM backed buffers on devices with no DMM. This makes CMA memory only being used when needed, instead for every buffer that has to be off-CPU rendered. Tested on Motorola Droid4 and Nokia N900 Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/1642587791-13222-3-git-send-email-ivo.g.dimitrov.75@gmail.com
2022-03-28drm: omapdrm: simplify omap_gem_pinIvaylo Dimitrov1-33/+42
Move tiler related code to its own function. Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/1642587791-13222-2-git-send-email-ivo.g.dimitrov.75@gmail.com
2022-03-08drm/omap: fix NULL but dereferenced coccicheck errorWan Jiabing1-1/+1
Fix the following coccicheck warning: ./drivers/gpu/drm/omapdrm/omap_overlay.c:89:22-25: ERROR: r_ovl is NULL but dereferenced. Here should be ovl->idx rather than r_ovl->idx. Fixes: e02b5cc9e898ad ("drm/omap: Add a 'right overlay' to plane state") Signed-off-by: Wan Jiabing <wanjiabing@vivo.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220307095612.409090-1-wanjiabing@vivo.com
2022-02-25drm/omap: plane: Remove redundant color encoding and range initialisationMaxime Ripard1-3/+0
The omap KMS driver will call drm_plane_create_color_properties() with a default encoding and range values of BT601 and Full Range, respectively. Since the initial value wasn't carried over in the state, the driver had to set it again in omap_plane_reset(). However, the helpers have been adjusted to set it properly at reset, so this is not needed anymore. Reviewed-by: Tomi Valkeinen <tomba@kernel.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20220221095918.18763-23-maxime@cerno.tech
2022-02-25drm/omap: plane: Remove redundant zpos initialisationMaxime Ripard1-7/+0
The omap KMS driver will call drm_plane_create_zpos_property() with an init value of the plane index and the plane type. Since the initial value wasn't carried over in the state, the driver had to set it again in omap_plane_reset(). However, the helpers have been adjusted to set it properly at reset, so this is not needed anymore. Reviewed-by: Tomi Valkeinen <tomba@kernel.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20220221095918.18763-15-maxime@cerno.tech
2022-02-25drm/omap: plane: Fix zpos initial value mismatchMaxime Ripard1-1/+11
While the omap_plane_init() function calls drm_plane_create_zpos_property() with an initial value of 0, omap_plane_reset() will force it to another value depending on the plane type. Fix the discrepancy by setting the initial zpos value to the same value in the drm_plane_create_zpos_property() call. Reviewed-by: Tomi Valkeinen <tomba@kernel.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20220221095918.18763-5-maxime@cerno.tech
2022-02-25drm/omap: dss: Make use of the helper component_compare_devYong Wu1-7/+1
Use the common compare helper from component. Cc: Tomi Valkeinen <tomba@kernel.org> Cc: Cai Huoqing <caihuoqing@baidu.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Yong Wu <yong.wu@mediatek.com> Link: https://lore.kernel.org/r/20220214060819.7334-17-yong.wu@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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