- 19 6月, 2019 1 次提交
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由 Paul Cercueil 提交于
Add a KMS driver for the Ingenic JZ47xx family of SoCs. This driver is meant to replace the aging jz4740-fb driver. This driver does not make use of the simple pipe helper, for the reason that it will soon be updated to support more advanced features like multiple planes, IPU integration for colorspace conversion and up/down scaling, support for DSI displays, and TV-out and HDMI outputs. Notes: v2: - Remove custom handling of panel. The panel is now discovered using the standard API. - Lots of small tweaks suggested by upstream v3: - Use devm_drm_dev_init() - Update compatible strings to -lcd instead of -drm - Add destroy() callbacks to plane and crtc - The ingenic,lcd-mode is now read from the bridge's DT node v4: Remove ingenic,lcd-mode property completely. The various modes are now deduced from the connector type, the pixel format or the bus flags. v5: - Fix framebuffer size incorrectly calculated for 24bpp framebuffers - Use 32bpp framebuffer instead of 16bpp, as it'll work with both 16-bit and 24-bit panel - Get rid of drm_format_plane_cpp() which has been dropped upstream - Avoid using drm_format_info->depth, which is deprecated. Signed-off-by: NPaul Cercueil <paul@crapouillou.net> Tested-by: NArtur Rojek <contact@artur-rojek.eu> Reviewed-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190603152331.23160-2-paul@crapouillou.net
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- 24 5月, 2019 1 次提交
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由 Linus Walleij 提交于
This adds a new DRM driver for the ST-Ericsson Multi Channel Display Engine, MCDE display controller. This hardware has three independent DSI hosts and can composit and display several memory buffers onto an LCD display. It was developed for several years inside of ST-Ericsson and shipped with a few million mobile phones from Sony and Samsung, as well as with the Snowball community development board. The driver is currently pretty rudimentary but supports a simple framebuffer so we can get penguins and graphics when using these SoCs. Acked-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: NLinus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190524092019.19355-1-linus.walleij@linaro.org
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- 21 5月, 2019 1 次提交
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由 Thomas Gleixner 提交于
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 15 5月, 2019 1 次提交
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由 Thomas Zimmermann 提交于
The type |struct drm_gem_vram_object| implements a GEM object for simple framebuffer devices with dedicated video memory. The BO is either located in VRAM or system memory. The implementation has been created from the respective code in ast, bochs and mgag200. These drivers copy their implementation from each other; except for the names of several data types. The helpers are currently build with TTM, but this is considered an implementation detail and may change in future updates. v5: * do WARN_ON_ONCE for pin-count mismatches * allocate only 2 entries in placements array v4: * cleanups from checkpatch.pl * removed several fixed-size types from interfaces * DRM_VRAM_HELPER now selects DRM_TTM * remove separate config option for GEM VRAM v2: * rename to |struct drm_gem_vram_object| * move drm_is_gem_ttm() to a later patch in the series * add drm_gem_vram_kmap_at() * return is_iomem from kmap functions * redefine TTM placement flags for public interface * documentation fixes Signed-off-by: NThomas Zimmermann <tzimmermann@suse.de> Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-2-tzimmermann@suse.deSigned-off-by: NGerd Hoffmann <kraxel@redhat.com>
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- 24 4月, 2019 1 次提交
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由 Dave Airlie 提交于
This could probably be done with Kconfig somehow, but I failed in my first 2 minute attempt. v2: use Kconfig better. Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: NDave Airlie <airlied@redhat.com>
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- 13 4月, 2019 1 次提交
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由 Rob Herring 提交于
This adds the initial driver for panfrost which supports Arm Mali Midgard and Bifrost family of GPUs. Currently, only the T860 and T760 Midgard GPUs have been tested. v2: - Add GPU reset on job hangs (Tomeu) - Add RuntimePM and devfreq support (Tomeu) - Fix T760 support (Tomeu) - Add a TODO file (Rob, Tomeu) - Support multiple in fences (Tomeu) - Drop support for shared fences (Tomeu) - Fill in MMU de-init (Rob) - Move register definitions back to single header (Rob) - Clean-up hardcoded job submit todos (Rob) - Implement feature setup based on features/issues (Rob) - Add remaining Midgard DT compatible strings (Rob) v3: - Add support for reset lines (Neil) - Add a MAINTAINERS entry (Rob) - Call dma_set_mask_and_coherent (Rob) - Do MMU invalidate on map and unmap. Restructure to do a single operation per map/unmap call. (Rob) - Add a missing explicit padding to struct drm_panfrost_create_bo (Rob) - Fix 0-day error: "panfrost_devfreq.c:151:9-16: ERROR: PTR_ERR applied after initialization to constant on line 150" - Drop HW_FEATURE_AARCH64_MMU conditional (Rob) - s/DRM_PANFROST_PARAM_GPU_ID/DRM_PANFROST_PARAM_GPU_PROD_ID/ (Rob) - Check drm_gem_shmem_prime_import_sg_table() error code (Rob) - Re-order power on sequence (Rob) - Move panfrost_acquire_object_fences() before scheduling job (Rob) - Add NULL checks on array pointers in job clean-up (Rob) - Rework devfreq (Tomeu) - Fix devfreq init with no regulator (Rob) - Various WS and comments clean-up (Rob) Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Lyude Paul <lyude@redhat.com> Reviewed-by: NAlyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: NEric Anholt <eric@anholt.net> Reviewed-by: NSteven Price <steven.price@arm.com> Signed-off-by: NMarty E. Plummer <hanetzer@startmail.com> Signed-off-by: NTomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com> Signed-off-by: NRob Herring <robh@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190409205427.6943-4-robh@kernel.org
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- 04 4月, 2019 1 次提交
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由 Joel Stanley 提交于
This driver is for the ASPEED BMC SoC's GFX display hardware. This driver runs on the ARM based BMC systems, unlike the ast driver which runs on a host CPU and is is for a PCI graphics device. Signed-off-by: NJoel Stanley <joel@jms.id.au> Acked-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: NNoralf Trønnes <noralf@tronnes.org> Reviewed-by: NSam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190403001909.31637-3-joel@jms.id.au
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- 03 4月, 2019 1 次提交
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由 Alexander Shiyan 提交于
We have two *_CLASS_DEVICE kernel config options (LCD_CLASS_DEVICE and BACKLIGHT_LCD_DEVICE) that do the same job. The patch removes useless BACKLIGHT_LCD_SUPPORT option and converts LCD_CLASS_DEVICE into a menu. Signed-off-by: NAlexander Shiyan <shc_work@mail.ru> Acked-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: NDaniel Thompson <daniel.thompson@linaro.org> Signed-off-by: NLee Jones <lee.jones@linaro.org>
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- 02 4月, 2019 1 次提交
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由 Qiang Yu 提交于
- Mali 4xx GPUs have two kinds of processors GP and PP. GP is for OpenGL vertex shader processing and PP is for fragment shader processing. Each processor has its own MMU so prcessors work in virtual address space. - There's only one GP but multiple PP (max 4 for mali 400 and 8 for mali 450) in the same mali 4xx GPU. All PPs are grouped togather to handle a single fragment shader task divided by FB output tiled pixels. Mali 400 user space driver is responsible for assign target tiled pixels to each PP, but mali 450 has a HW module called DLBU to dynamically balance each PP's load. - User space driver allocate buffer object and map into GPU virtual address space, upload command stream and draw data with CPU mmap of the buffer object, then submit task to GP/PP with a register frame indicating where is the command stream and misc settings. - There's no command stream validation/relocation due to each user process has its own GPU virtual address space. GP/PP's MMU switch virtual address space before running two tasks from different user process. Error or evil user space code just get MMU fault or GP/PP error IRQ, then the HW/SW will be recovered. - Use GEM+shmem for MM. Currently just alloc and pin memory when gem object creation. GPU vm map of the buffer is also done in the alloc stage in kernel space. We may delay the memory allocation and real GPU vm map to command submission stage in the furture as improvement. - Use drm_sched for GPU task schedule. Each OpenGL context should have a lima context object in the kernel to distinguish tasks from different user. drm_sched gets task from each lima context in a fair way. mesa driver can be found here before upstreamed: https://gitlab.freedesktop.org/lima/mesa v8: - add comments for in_sync - fix ctx free miss mutex unlock v7: - remove lima_fence_ops with default value - move fence slab create to device probe - check pad ioctl args to be zero - add comments for user/kernel interface v6: - fix comments by checkpatch.pl v5: - export gp/pp version to userspace - rebase on drm-misc-next v4: - use get param interface to get info - separate context create/free ioctl - remove unused max sched task param - update copyright time - use xarray instead of idr - stop using drmP.h v3: - fix comments from kbuild robot - restrict supported arch to tested ones v2: - fix syscall argument check - fix job finish fence leak since kernel 5.0 - use drm syncobj to replace native fence - move buffer object GPU va map into kernel - reserve syscall argument space for future info - remove kernel gem modifier - switch TTM back to GEM+shmem MM - use time based io poll - use whole register name - adopt gem reservation obj integration - use drm_timeout_abs_to_jiffies Cc: Eric Anholt <eric@anholt.net> Cc: Rob Herring <robh@kernel.org> Cc: Christian König <ckoenig.leichtzumerken@gmail.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Alex Deucher <alexdeucher@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Rob Clark <robdclark@gmail.com> Cc: Dave Airlie <airlied@gmail.com> Signed-off-by: NAndreas Baierl <ichgeh@imkreisrum.de> Signed-off-by: NErico Nunes <nunes.erico@gmail.com> Signed-off-by: NHeiko Stuebner <heiko@sntech.de> Signed-off-by: NMarek Vasut <marex@denx.de> Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com> Signed-off-by: NSimon Shields <simon@lineageos.org> Signed-off-by: NVasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: NQiang Yu <yuq825@gmail.com> Reviewed-by: NEric Anholt <eric@anholt.net> Reviewed-by: NRob Herring <robh@kerrnel.org> Signed-off-by: NEric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/291200/
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- 20 3月, 2019 1 次提交
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由 Christian König 提交于
Remove the chash implementation for now since it isn't used any more. Signed-off-by: NChristian König <christian.koenig@amd.com> Reviewed-by: NFelix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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- 15 3月, 2019 1 次提交
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由 Noralf Trønnes 提交于
This adds a library for shmem backed GEM objects. v8: - export drm_gem_shmem_create_with_handle - call mapping_set_gfp_mask to set default zone to GFP_HIGHUSER - Add helper drm_gem_shmem_get_pages_sgt() v7: - Use write-combine for mmap instead. This is the more common case. (robher) v6: - Fix uninitialized variable issue in an error path (anholt). - Add a drm_gem_shmem_vm_open() to the fops to get proper refcounting of the pages (anholt). v5: - Drop drm_gem_shmem_prime_mmap() (Daniel Vetter) - drm_gem_shmem_mmap(): Subtract drm_vma_node_start() to get the real vma->vm_pgoff - drm_gem_shmem_fault(): Use vmf->pgoff now that vma->vm_pgoff is correct v4: - Drop cache modes (Thomas Hellstrom) - Add a GEM attached vtable v3: - Grammar (Sam Ravnborg) - s/drm_gem_shmem_put_pages_unlocked/drm_gem_shmem_put_pages_locked/ (Sam Ravnborg) - Add debug output in error path (Sam Ravnborg) Signed-off-by: NNoralf Trønnes <noralf@tronnes.org> Signed-off-by: NEric Anholt <eric@anholt.net> Signed-off-by: NRob Herring <robh@kernel.org> Signed-off-by: NEric Anholt <eric@anholt.net> Reviewed-by: NEric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20190313004344.24169-1-robh@kernel.org
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- 12 3月, 2019 1 次提交
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由 Hans de Goede 提交于
The vboxvideo driver has been converted to the atomic modesetting API and all FIXME and TODO items have been fixed, so it is time to move it out of staging. Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: NHans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190304164724.10210-4-hdegoede@redhat.com
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- 17 1月, 2019 1 次提交
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由 Noralf Trønnes 提交于
CMA helper drivers have been converted to drm_fbdev_generic_setup() so the fbdev code can be removed. v3: Remove CMA specific conditional in the generic fbdev client v2: Clean up the includes some more (Laurent) Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: NNoralf Trønnes <noralf@tronnes.org> Acked-by: NSam Ravnborg <sam@ravnborg.org> Reviewed-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190114121059.20704-1-noralf@tronnes.org
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- 04 10月, 2018 1 次提交
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由 Neil Armstrong 提交于
Since "drm/fb: Stop leaking physical address", the default behaviour of the DRM fbdev emulation is to set the smem_base to 0 and pass the new FBINFO_HIDE_SMEM_START flag. The main reason is to avoid leaking physical addresse to user-space, and it follows a general move over the kernel code to avoid user-space to manipulate physical addresses and then use some other mechanisms like dma-buf to transfer physical buffer handles over multiple subsystems. But, a lot of devices depends on closed sources binaries to enable OpenGL hardware acceleration that uses this smem_start value to pass physical addresses to out-of-tree modules in order to render into these physical adresses. These should use dma-buf buffers allocated from the DRM display device instead and stop relying on fbdev overallocation to gather DMA memory (some HW vendors delivers GBM and Wayland capable binaries, but older unsupported devices won't have these new binaries and are doomed until an Open Source solution like Lima finalizes). Since these devices heavily depends on this kind of software and because the smem_start population was available for years, it's a breakage to stop leaking smem_start without any alternative solutions. This patch adds a Kconfig depending on the EXPERT config and an unsafe kernel module parameter tainting the kernel when enabled. A clear comment and Kconfig help text was added to clarify why and when this patch should be reverted, but in the meantime it's a necessary feature to keep. Cc: Dave Airlie <airlied@gmail.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Cc: Noralf Trønnes <noralf@tronnes.org> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Eric Anholt <eric@anholt.net> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Rob Clark <robdclark@gmail.com> Cc: Ben Skeggs <skeggsb@gmail.com> Cc: Christian König <christian.koenig@amd.com> Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com> Reviewed-by: NMaxime Ripard <maxime.ripard@bootlin.com> Tested-by: NMaxime Ripard <maxime.ripard@bootlin.com> Acked-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Acked-by: NDave Airlie <airlied@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/1538136355-15383-1-git-send-email-narmstrong@baylibre.com
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- 29 8月, 2018 1 次提交
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由 Amber Lin 提交于
Since KFD is only supported by single GPU driver, it makes sense to merge amdgpu and amdkfd into one module. This patch is the initial step: merge Kconfig and Makefile. v2: also remove kfd from drm Kconfig Signed-off-by: NAmber Lin <Amber.Lin@amd.com> Acked-by: NChristian König <christian.koenig@amd.com> Reviewed-by: NFelix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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- 13 7月, 2018 1 次提交
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由 Hans Verkuil 提交于
This adds support for the DisplayPort CEC-Tunneling-over-AUX feature that is part of the DisplayPort 1.3 standard. Unfortunately, not all DisplayPort/USB-C to HDMI adapters with a chip that has this capability actually hook up the CEC pin, so even though a CEC device is created, it may not actually work. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180711132909.25409-2-hverkuil@xs4all.nl
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- 10 7月, 2018 1 次提交
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由 Arnd Bergmann 提交于
Without this, we get link errors during randconfig build: drivers/gpu/drm/vkms/vkms_drv.o:(.rodata+0xa0): undefined reference to `drm_atomic_helper_check' drivers/gpu/drm/vkms/vkms_drv.o:(.rodata+0xa8): undefined reference to `drm_atomic_helper_commit' drivers/gpu/drm/vkms/vkms_plane.o:(.rodata+0x0): undefined reference to `drm_atomic_helper_update_plane' drivers/gpu/drm/vkms/vkms_plane.o:(.rodata+0x8): undefined reference to `drm_atomic_helper_disable_plane' drivers/gpu/drm/vkms/vkms_plane.o:(.rodata+0x18): undefined reference to `drm_atomic_helper_plane_reset' drivers/gpu/drm/vkms/vkms_plane.o:(.rodata+0x28): undefined reference to `drm_atomic_helper_plane_duplicate_state' drivers/gpu/drm/vkms/vkms_plane.o:(.rodata+0x30): undefined reference to `drm_atomic_helper_plane_destroy_state' drivers/gpu/drm/vkms/vkms_output.o:(.rodata+0x1c0): undefined reference to `drm_helper_probe_single_connector_modes' drivers/gpu/drm/vkms/vkms_crtc.o:(.rodata+0x40): undefined reference to `drm_atomic_helper_crtc_reset' drivers/gpu/drm/vkms/vkms_crtc.o:(.rodata+0x70): undefined reference to `drm_atomic_helper_set_config' drivers/gpu/drm/vkms/vkms_crtc.o:(.rodata+0x78): undefined reference to `drm_atomic_helper_page_flip' drivers/gpu/drm/vkms/vkms_crtc.o:(.rodata+0x90): undefined reference to `drm_atomic_helper_crtc_duplicate_state' drivers/gpu/drm/vkms/vkms_crtc.o:(.rodata+0x98): undefined reference to `drm_atomic_helper_crtc_destroy_state' Fixes: 854502fa ("drm/vkms: Add basic CRTC initialization") Fixes: 1c7c5fd9 ("drm/vkms: Introduce basic VKMS driver") Signed-off-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180709154901.1989316-1-arnd@arndb.de
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- 05 7月, 2018 2 次提交
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由 Rodrigo Siqueira 提交于
Add the following additional information: authors and description in Kconfig. Signed-off-by: NRodrigo Siqueira <rodrigosiqueiramelo@gmail.com> Reviewed-by: NHaneen Mohammed <hamohammed.sa@gmail.com> Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: NGustavo Padovan <gustavo.padovan@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/180770375b0537f1ba1857bdb7fdc71dd201882e.1526514457.git.rodrigosiqueiramelo@gmail.com
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由 Haneen Mohammed 提交于
This patch introduces Virtual Kernel Mode-Setting (VKMS) driver. It creates a very basic kms driver with 1 crtc/encoder/connector/plane. VKMS driver would be useful for testing, or for running X (or similar) on headless machines and be able to still use the GPU. Thus it enables a virtual display without the need for hardware display capability. Signed-off-by: NHaneen Mohammed <hamohammed.sa@gmail.com> Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: NGustavo Padovan <gustavo.padovan@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180514143346.GA21695@haneen-vb
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- 04 5月, 2018 3 次提交
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由 Maarten Lankhorst 提交于
Signed-off-by: NMaarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180503112217.37292-6-maarten.lankhorst@linux.intel.comAcked-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
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由 Maarten Lankhorst 提交于
We want to add more DRM selftests, and there's not much point in having a Kconfig option for every single one of them, so make a generic one. Signed-off-by: NMaarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180503112217.37292-5-maarten.lankhorst@linux.intel.com [mlankhorst: Fix i915/Kconfig.debug (ickle)] Acked-by: NChris Wilson <chris@chris-wilson.co.uk> Acked-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
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由 Eric Anholt 提交于
This driver will be used to support Mesa on the Broadcom 7268 and 7278 platforms. V3D 3.3 introduces an MMU, which means we no longer need CMA or vc4's complicated CL/shader validation scheme. This massively changes the GEM behavior, so I've forked off to a new driver. v2: Mark SUBMIT_CL as needing DRM_AUTH. coccinelle fixes from kbuild test robot. Drop personal git link from MAINTAINERS. Don't double-map dma-buf imported BOs. Add kerneldoc about needing MMU eviction. Drop prime vmap/unmap stubs. Delay mmap offset setup to mmap time. Use drm_dev_init instead of _alloc. Use ktime_get() for wait_bo timeouts. Drop drm_can_sleep() usage, since we don't modeset. Switch page tables back to WC (debug change to coherent had slipped in). Switch drm_gem_object_unreference_unlocked() to drm_gem_object_put_unlocked(). Simplify overflow mem handling by not sharing overflow mem between jobs. v3: no changes v4: align submit_cl to 64 bits (review by airlied), check zero flags in other ioctls. Signed-off-by: NEric Anholt <eric@anholt.net> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v4) Acked-by: Dave Airlie <airlied@linux.ie> (v3, requested submit_cl change) Link: https://patchwork.freedesktop.org/patch/msgid/20180430181058.30181-3-eric@anholt.net
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- 03 4月, 2018 1 次提交
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由 Oleksandr Andrushchenko 提交于
Add support for Xen para-virtualized frontend display driver. Accompanying backend [1] is implemented as a user-space application and its helper library [2], capable of running as a Weston client or DRM master. Configuration of both backend and frontend is done via Xen guest domain configuration options [3]. Driver limitations: 1. Only primary plane without additional properties is supported. 2. Only one video mode supported which resolution is configured via XenStore. 3. All CRTCs operate at fixed frequency of 60Hz. 1. Implement Xen bus state machine for the frontend driver according to the state diagram and recovery flow from display para-virtualized protocol: xen/interface/io/displif.h. 2. Read configuration values from Xen store according to xen/interface/io/displif.h protocol: - read connector(s) configuration - read buffer allocation mode (backend/frontend) 3. Handle Xen event channels: - create for all configured connectors and publish corresponding ring references and event channels in Xen store, so backend can connect - implement event channels interrupt handlers - create and destroy event channels with respect to Xen bus state 4. Implement shared buffer handling according to the para-virtualized display device protocol at xen/interface/io/displif.h: - handle page directories according to displif protocol: - allocate and share page directories - grant references to the required set of pages for the page directory - allocate xen balllooned pages via Xen balloon driver with alloc_xenballooned_pages/free_xenballooned_pages - grant references to the required set of pages for the shared buffer itself - implement pages map/unmap for the buffers allocated by the backend (gnttab_map_refs/gnttab_unmap_refs) 5. Implement kernel modesetiing/connector handling using DRM simple KMS helper pipeline: - implement KMS part of the driver with the help of DRM simple pipepline helper which is possible due to the fact that the para-virtualized driver only supports a single (primary) plane: - initialize connectors according to XenStore configuration - handle frame done events from the backend - create and destroy frame buffers and propagate those to the backend - propagate set/reset mode configuration to the backend on display enable/disable callbacks - send page flip request to the backend and implement logic for reporting backend IO errors on prepare fb callback - implement virtual connector handling: - support only pixel formats suitable for single plane modes - make sure the connector is always connected - support a single video mode as per para-virtualized driver configuration 6. Implement GEM handling depending on driver mode of operation: depending on the requirements for the para-virtualized environment, namely requirements dictated by the accompanying DRM/(v)GPU drivers running in both host and guest environments, number of operating modes of para-virtualized display driver are supported: - display buffers can be allocated by either frontend driver or backend - display buffers can be allocated to be contiguous in memory or not Note! Frontend driver itself has no dependency on contiguous memory for its operation. 6.1. Buffers allocated by the frontend driver. The below modes of operation are configured at compile-time via frontend driver's kernel configuration. 6.1.1. Front driver configured to use GEM CMA helpers This use-case is useful when used with accompanying DRM/vGPU driver in guest domain which was designed to only work with contiguous buffers, e.g. DRM driver based on GEM CMA helpers: such drivers can only import contiguous PRIME buffers, thus requiring frontend driver to provide such. In order to implement this mode of operation para-virtualized frontend driver can be configured to use GEM CMA helpers. 6.1.2. Front driver doesn't use GEM CMA If accompanying drivers can cope with non-contiguous memory then, to lower pressure on CMA subsystem of the kernel, driver can allocate buffers from system memory. Note! If used with accompanying DRM/(v)GPU drivers this mode of operation may require IOMMU support on the platform, so accompanying DRM/vGPU hardware can still reach display buffer memory while importing PRIME buffers from the frontend driver. 6.2. Buffers allocated by the backend This mode of operation is run-time configured via guest domain configuration through XenStore entries. For systems which do not provide IOMMU support, but having specific requirements for display buffers it is possible to allocate such buffers at backend side and share those with the frontend. For example, if host domain is 1:1 mapped and has DRM/GPU hardware expecting physically contiguous memory, this allows implementing zero-copying use-cases. Note, while using this scenario the following should be considered: a) If guest domain dies then pages/grants received from the backend cannot be claimed back b) Misbehaving guest may send too many requests to the backend exhausting its grant references and memory (consider this from security POV). Note! Configuration options 1.1 (contiguous display buffers) and 2 (backend allocated buffers) are not supported at the same time. 7. Handle communication with the backend: - send requests and wait for the responses according to the displif protocol - serialize access to the communication channel - time-out used for backend communication is set to 3000 ms - manage display buffers shared with the backend [1] https://github.com/xen-troops/displ_be [2] https://github.com/xen-troops/libxenbe [3] https://xenbits.xen.org/gitweb/?p=xen.git;a=blob;f=docs/man/xl.cfg.pod.5.in;h=a699367779e2ae1212ff8f638eff0206ec1a1cc9;hb=refs/heads/master#l1257Signed-off-by: NOleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180403112317.28751-2-andr2000@gmail.com
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- 17 1月, 2018 1 次提交
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由 Hans de Goede 提交于
All Kconfig menu menu entries should have a depends on MENU_OPTION, the menu stops after the first Kconfig entry without this depends on. Since the PANEL_ORIENTATION_QUIRKS option is also used outside of DRM, it deliberately does not have a depends on DRM, but this causes all items after it to show as separate items rather then under the DRM menuconfig. This commit moves PANEL_ORIENTATION_QUIRKS to the end of the drm Kconfig file, grouping it with DRM_LIB_RANDOM which also does not depend on DRM, fixing the DRM menuconfig. Fixes: 404d1a3e ("drm: Add panel orientation quirks, v6.") Cc: Chris Wilson <chris@chris-wilson.co.uk> Reported-by: NChris Wilson <chris@chris-wilson.co.uk> Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: NHans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180117081032.6411-1-hdegoede@redhat.com
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- 08 12月, 2017 1 次提交
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由 Lucas Stach 提交于
This moves and renames the AMDGPU scheduler to a common location in DRM in order to facilitate re-use by other drivers. This is mostly a straight forward rename with no code changes. One notable exception is the function to_drm_sched_fence(), which is no longer a inline header function to avoid the need to export the drm_sched_fence_ops_scheduled and drm_sched_fence_ops_finished structures. Reviewed-by: NChunming Zhou <david1.zhou@amd.com> Tested-by: NDieter Nützel <Dieter@nuetzel-hh.de> Acked-by: NAlex Deucher <alexander.deucher@amd.com> Signed-off-by: NLucas Stach <l.stach@pengutronix.de> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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- 05 12月, 2017 3 次提交
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由 Hans de Goede 提交于
Add a comment to the DRM_PANEL_ORIENTATION_QUIRKS documenting that the reason for a separate Kconfig for this is because drm_panel_orientation_quirks.c code is shared with fbdev. Suggested-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: NHans de Goede <hdegoede@redhat.com> Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20171204223321.15799-1-hdegoede@redhat.com
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由 Hans de Goede 提交于
On some devices the LCD panel is mounted in the casing in such a way that the up/top side of the panel does not match with the top side of the device (e.g. it is mounted upside-down). This commit adds the necessary infra for lcd-panel drm_connector-s to have a "panel orientation" property to communicate how the panel is orientated vs the casing. Userspace can use this property to check for non-normal orientation and then adjust the displayed image accordingly by rotating it to compensate. Changes in v2: -Store panel_orientation in drm_display_info, so that drm_fb_helper.c can access it easily -Have a single drm_connector_init_panel_orientation_property rather then create and attach functions. The caller is expected to set drm_display_info.panel_orientation before calling this, then this will check for platform specific quirks overriding the panel_orientation and if the panel_orientation is set after this then it will attach the property. Changes in v6: -Use an enum (with kerneldoc) rather then #defines for DRM_MODE_PANEL_ORIENTATION_* Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: NHans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171125193553.23986-4-hdegoede@redhat.com
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由 Hans de Goede 提交于
Some x86 clamshell design devices use portrait tablet screens and a display engine which cannot rotate in hardware, so the firmware just leaves things as is and we cannot figure out that the display is oriented non upright from the hardware. So at least on x86, we need a quirk table for this. This commit adds a DMI based quirk table which is initially populated with 5 such devices: Asus T100HA, GPD Pocket, GPD win, I.T.Works TW891 and the VIOS LTH17. This quirk table will be used by the drm code to let userspace know that the display is not mounted upright inside the devices case through a new panel orientation drm-connector property, as well as to tell fbcon to rotate the console so that it shows the right way up. Changes in v5: -Add a kernel-doc comment documenting drm_get_panel_orientation_quirk() -Remove board_* matches from the dmi-matches for the VIOS LTH17 laptop, keeping only the (identical) sys_vendor and product_name matches. This is necessary because an older version of the bios has board_vendor set to VOIS instead of VIOS Changes in v6: -Add reference to added kernel-docs in Documentation/gpu/drm-kms-helpers.rst Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: NHans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171125193553.23986-3-hdegoede@redhat.com
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- 27 9月, 2017 2 次提交
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由 Felix Kuehling 提交于
IH tracks pending retry faults in a hash table for fast lookup in interrupt context. Each VM has a short FIFO of pending VM faults for processing in a bottom half. The IH prescreening stage adds retry faults and filters out repeated retry interrupts to minimize the impact of interrupt storms. It's the VM's responsibility remove pending faults once they are handled. For now this is only done when the VM is destroyed. v2: - Made the hash table smaller and the FIFO longer. I never want the FIFO to fill up, because that would make prescreen take longer. 128 pending page faults should be enough to keep migrations busy. Signed-off-by: NFelix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> (v1) Reviewed-by: NAlex Deucher <alexander.deucher@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Felix Kuehling 提交于
This adds a statically sized closed hash table implementation with low memory and CPU overhead. The API is inspired by kfifo. Storing, retrieving and deleting data does not involve any dynamic memory management, which makes it ideal for use in interrupt context. Static memory usage per entry comprises a 32 or 64 bit hash key, two bits for occupancy tracking and the value size stored in the table. No list heads or pointers are needed. Therefore this data structure should be quite cache-friendly, too. It uses linear probing and lazy deletion. During lookups free space is reclaimed and entries relocated to speed up future lookups. v2: squash in do_div and _BITOPS_LONG_SHIFT fixes Signed-off-by: NFelix Kuehling <Felix.Kuehling@amd.com> Acked-by: NChristian König <christian.koenig@amd.com> Acked-by: NAlex Deucher <alexander.deucher@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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- 19 9月, 2017 1 次提交
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由 Jani Nikula 提交于
Handle debugfs override edid and firmware edid at the low level to transparently and completely replace the real edid. Previously, we practically only used the modes from the override EDID, and none of the other data, such as audio parameters. This change also prevents actual EDID reads when the EDID is to be overridden, but retains the DDC probe. This is useful if the reason for preferring override EDID are problems with reading the data, or corruption of the data. Move firmware EDID loading from helper to core, as the functionality moves to lower level as well. This will result in a change of module parameter from drm_kms_helper.edid_firmware to drm.edid_firmware, which arguably makes more sense anyway. Some future work remains related to override and firmware EDID validation. Like before, no validation is done for override EDID. The firmware EDID is validated separately in the loader. Some unification and deduplication would be in order, to validate all of them at the drm_do_get_edid() level, like "real" EDIDs. v2: move firmware loading to core v3: rebase, commit message refresh Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Tested-by: NAbdiel Janulgue <abdiel.janulgue@linux.intel.com> Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com> Acked-by: NDave Airlie <airlied@gmail.com> Signed-off-by: NJani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1e8a710bcac46e5136c1a7b430074893c81f364a.1505203831.git.jani.nikula@intel.com
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- 24 8月, 2017 1 次提交
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由 Linus Walleij 提交于
This adds a new DRM driver for the Faraday Technology TVE200 block. This "TV Encoder" encodes a ITU-T BT.656 stream and can be found in the StorLink SL3516 (later Cortina Systems CS3516) as well as the Grain Media GM8180. I do not have definitive word from anyone at Faraday that this IP block is theirs, but it bears the hallmark of their 3-digit version code (200) and is used in two SoCs from completely different companies. (Grain Media was fully owned by Faraday until it was transferred to NovoTek this january, and Faraday did lots of work on the StorLink SoCs.) The D-Link DIR-685 uses this in connection with the Ilitek ILI9322 panel driver that supports BT.656 input, while the GM8180 apparently has been used with the Cirrus Logic CS4954 digital video encoder. The oldest user seems to be something called Techwall 2835. This driver is heavily inspired by Eric Anholt's PL111 driver and therefore I have mentioned all the ancestor authors in the header file. Acked-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: NEric Anholt <eric@anholt.net> Signed-off-by: NLinus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20170820100557.24991-2-linus.walleij@linaro.org
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- 09 5月, 2017 1 次提交
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由 Tom Cooksey 提交于
This is a modesetting driver for the pl111 CLCD display controller found on various ARM platforms such as the Versatile Express. The driver has only been tested on the bcm911360_entphn platform so far, with PRIME-based buffer sharing between vc4 and clcd. It reuses the existing devicetree binding, while not using quite as many of its properties as the fbdev driver does (those are left for future work). v2: Nearly complete rewrite by anholt, cutting 2/3 of the code thanks to DRM core's excellent new helpers. v3: Don't match pl110 any more, don't attach if we don't have a DRM panel, use DRM_GEM_CMA_FOPS, update MAINTAINERS, use the simple display helper, use drm_gem_cma_dumb_create (same as our wrapper). v4: Change the driver's .name to not clash with fbdev in sysfs, drop platform alias, drop redundant "drm" in DRM driver name, hook up .prepare_fb to the CMA helper so that DMA fences should work. v5: Move register definitions inside the driver directory, fix build in COMPILE_TEST and !AMBA mode. v6: Drop TIM2_CLKSEL for now to be consistent with existing DT bindings, switch back to external register definitions. Signed-off-by: NTom Cooksey <tom.cooksey@arm.com> Signed-off-by: NEric Anholt <eric@anholt.net> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> (v5) Acked-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170413031746.12921-2-eric@anholt.net
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- 15 4月, 2017 1 次提交
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由 Yannick Fertre 提交于
This controller provides output signals to interface directly a variety of LCD and TFT panels. These output signals are: RGB signals (up to 24bpp), vertical & horizontal synchronisations, data enable and the pixel clock. Reviewed-by: NEric Anholt <eric@anholt.net> Signed-off-by: NYannick Fertre <yannick.fertre@st.com> Signed-off-by: NEric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/1492164819-10513-5-git-send-email-yannick.fertre@st.comReviewed-by: NNeil Armstrong <narmstrong@baylibre.com> Reviewed-by: NEric Anholt <eric@anholt.net>
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- 27 2月, 2017 1 次提交
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由 Xinliang Liu 提交于
This patch add a config to support to create multi buffer for cma fbdev. Such as double buffer and triple buffer. Cma fbdev is convient to add a legency fbdev. And still many Android devices use fbdev now and at least double buffer is needed for these Android devices, so that a buffer flip can be operated. It will need some time for Android device vendors to abondon legency fbdev. So multi buffer for fbdev is needed. Signed-off-by: NXinliang Liu <xinliang.liu@linaro.org> [s.christ@phytec.de: Picking patch from https://lkml.org/lkml/2015/9/14/188] Signed-off-by: NStefan Christ <s.christ@phytec.de> Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com> Acked-by: NDave Airlie <airlied@gmail.com> Tested-by: NNeil Armstrong <narmstrong@baylibre.com> Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/075ffb50cc16ab055b5d47b30163401bb356ab51.1487175046.git-series.maxime.ripard@free-electrons.com
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- 19 2月, 2017 1 次提交
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由 Noralf Trønnes 提交于
tinydrm provides helpers for very simple displays that can use CMA backed framebuffers and need flushing on changes. Signed-off-by: NNoralf Trønnes <noralf@tronnes.org> Acked-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Acked-by: NThierry Reding <treding@nvidia.com>
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- 12 1月, 2017 1 次提交
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由 Benjamin Gaignard 提交于
DRM_VM and DRM_LEGACY shouldn't be selected if MMU isn't set. Fixes: 62a0d98a ("drm: allow to use mmuless SoC") Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1484211456-5759-1-git-send-email-benjamin.gaignard@linaro.org
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- 09 1月, 2017 1 次提交
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由 Benjamin Gaignard 提交于
Removing MMU configuration flag from DRM make few automatic build failed when they answer yes to all flags. Add asm/vga.h file on Blackfin architecture to not broke compilation. Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org> Fixes: 62a0d98a ("drm: allow to use mmuless SoC") Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1483789151-6603-1-git-send-email-benjamin.gaignard@linaro.org
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- 06 1月, 2017 2 次提交
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由 Benjamin Gaignard 提交于
Some SoC without MMU have display driver where a drm/kms driver could be implemented. Before doing such kind of thing drm/kms must allow to use mmuless devices. This patch propose to remove MMU configuration flag and add a cma helper function to help implementing mmuless display driver version 4: - add documentation about drm_gem_cma_get_unmapped_area() - stub it MMU case Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org> [danvet: Use recommended struct member references in kernel-doc.] Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1483521177-21794-4-git-send-email-benjamin.gaignard@linaro.org
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由 Benjamin Gaignard 提交于
drm_vm.c functions are only need for DRM_LEGACY and DRM_NOUVEAU. Use a new DRM_VM to define when drm_vm.c in needed. stub drm_legacy_vma_flush() to avoid compilation issues version 4: - a "config DRM_VM" in Kconfig Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org> [danvet: Fix conflict.] Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
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