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2019-05-28Merge tag 'drm-misc-next-2019-05-24' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for v5.3, try #2: UAPI Changes: - Add HDR source metadata property. - Make drm.h compile on GNU/kFreeBSD by including stdint.h - Clarify how the userspace reviewer has to review new kernel UAPI. - Clarify that for using new UAPI, merging to drm-next or drm-misc-next should be enough. Cross-subsystem Changes: - video/hdmi: Add unpack function for DRM infoframes. - Device tree bindings: * Updating a property for Mali Midgard GPUs * Updating a property for STM32 DSI panel * Adding support for FriendlyELEC HD702E 800x1280 panel * Adding support for Evervision VGG804821 800x480 5.0" WVGA TFT panel * Adding support for the EDT ET035012DM6 3.5" 320x240 QVGA 24-bit RGB TFT. * Adding support for Three Five displays TFC S9700RTWV43TR-01B 800x480 panel with resistive touch found on TI's AM335X-EVM. * Adding support for EDT ETM0430G0DH6 480x272 panel. - Add OSD101T2587-53TS driver with DT bindings. - Add Samsung S6E63M0 panel driver with DT bindings. - Add VXT VL050-8048NT-C01 800x480 panel with DT bindings. - Dma-buf: - Make mmap callback actually optional. - Documentation updates. - Fix debugfs refcount inbalance. - Remove unused sync_dump function. - Fix device tree bindings in drm-misc-next after a botched merge. Core Changes: - Add support for HDR infoframes and related EDID parsing. - Remove prime sg_table caching, now done inside dma-buf. - Add shiny new drm_gem_vram helpers for simple VRAM drivers; with some fixes to the new API on top. - Small fix to job cleanup without timeout handler. - Documentation fixes to drm_fourcc. - Replace lookups of drm_format with struct drm_format_info; remove functions that become obsolete by this conversion. - Remove double include in bridge/panel.c and some drivers. - Remove drmP.h include from drm/edid and drm/dp. - Fix null pointer deref in drm_fb_helper_hotplug_event(). - Remove most members from drm_fb_helper_crtc, only mode_set is kept. - Remove race of fb helpers with userspace; only restore mode when userspace is not master. - Move legacy setup from drm_file.c to drm_legacy_misc.c - Rework scheduler job destruction. - drm/bus was removed, remove from TODO. - Add __drm_atomic_helper_crtc_reset() to subclass crtc_state, and convert some drivers to use it (conversion is not complete yet). - Bump vblank timeout wait to 100 ms for atomic. - Docbook fix for drm_hdmi_infoframe_set_hdr_metadata. Driver Changes: - sun4i: Use DRM_GEM_CMA_VMAP_DRIVER_OPS instead of definining manually. - v3d: Small cleanups, adding support for compute shaders, reservation/synchronization fixes and job management refactoring, fixes MMU and debugfs. - lima: Fix null pointer in irq handler on startup, set default timeout for scheduled jobs. - stm/ltdc: Assorted fixes and adding FB modifier support. - amdgpu: Avoid hw reset if guilty job was already signaled. - virtio: Add seqno to fences, add trace events, use correct flags for fence allocation. - Convert AST, bochs, mgag200, vboxvideo, hisilicon to the new drm_gem_vram API. - sun6i_mipi_dsi: Support DSI GENERIC_SHORT_WRITE_2 transfers. - bochs: Small fix to use PTR_RET_OR_ZERO and driver unload. - gma500: header fixes - cirrus: Remove unused files. - mediatek: Fix compiler warning after merging the HDR series. - vc4: Rework binner bo handling. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/052875a5-27ba-3832-60c2-193d950afdff@linux.intel.com
2019-05-22Merge drm/drm-next into drm-misc-nextSean Paul
Backmerging 5.2-rc1 to -misc-next for robher Signed-off-by: Sean Paul <seanpaul@chromium.org>
2019-05-21treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner
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: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-15drm: Add |struct drm_gem_vram_object| and helpersThomas Zimmermann
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: Thomas Zimmermann <tzimmermann@suse.de> Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-2-tzimmermann@suse.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-05-14Merge tag 'backlight-next-5.2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight Pull backlight updates from Lee Jones: "Fix-ups: - Remove unused BACKLIGHT_LCD_SUPPORT symbol - Remove unused BACKLIGHT_CLASS_DEVICE dependencies - Add DT support to lm3630a_bl Bug Fixes: - Fix error path issues in lm3630a_bl" * tag 'backlight-next-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: backlight: lm3630a: Add firmware node support dt-bindings: backlight: Add lm3630a bindings backlight: lm3630a: Return 0 on success in update_status functions video: lcd: Remove useless BACKLIGHT_CLASS_DEVICE dependencies video: backlight: Remove useless BACKLIGHT_LCD_SUPPORT kernel symbol
2019-04-24Merge branch 'drm-legacy-cleanup' of ↵Daniel Vetter
git://people.freedesktop.org/~airlied/linux into drm-next Pull legacy cleanups from Dave. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> From: Dave Airlie <airlied@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/CAPM=9tztr1GoR0gr1CXPv8FsAXE4iuoRZDWKYovtnb6oDGF-Lg@mail.gmail.com
2019-04-24drm/legacy: don't include any of ati_pcigart in legacy. (v2)Dave Airlie
This could probably be done with Kconfig somehow, but I failed in my first 2 minute attempt. v2: use Kconfig better. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2019-04-12drm/panfrost: Add initial panfrost driverRob Herring
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: Alyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Steven Price <steven.price@arm.com> Signed-off-by: Marty E. Plummer <hanetzer@startmail.com> Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190409205427.6943-4-robh@kernel.org
2019-04-05Merge tag 'drm-misc-next-2019-04-04' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for 5.2: UAPI Changes: -syncobj: Add TIMELINE_WAIT|QUERY|TRANSFER|TIMELINE_SIGNAL ioctls (Chunming) -Clarify that 1.0 can be represented by drm_color_lut (Daniel) Cross-subsystem Changes: -dt-bindings: Add binding for rk3066 hdmi (Johan) -dt-bindings: Add binding for Feiyang FY07024DI26A30-D panel (Jagan) -dt-bindings: Add Rocktech vendor prefix and jh057n00900 panel bindings (Guido) -MAINTAINERS: Add lima and ASPEED entries (Joel & Qiang) Core Changes: -memory: use dma_alloc_coherent when mem encryption is active (Christian) -dma_buf: add support for a dma_fence chain (Christian) -shmem_gem: fix off-by-one bug in new shmem gem helpers (Dan) Driver Changes: -rockchip: Add support for rk3066 hdmi (Johan) -ASPEED: Add driver supporting ASPEED BMC display controller to drm (Joel) -lima: Add driver supporting Arm Mali4xx gpus to drm (Qiang) -vc4/v3d: Various cleanups and improved error handling (Eric) -panel: Add support for Feiyang FY07024DI26A30-D MIPI-DSI panel (Jagan) -panel: Add support for Rocktech jh057n00900 MIPI-DSI panel (Guido) Cc: Johan Jonker <jbx6244@gmail.com> Cc: Christian König <christian.koenig@amd.com> Cc: Chunming Zhou <david1.zhou@amd.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Eric Anholt <eric@anholt.net> Cc: Qiang Yu <yuq825@gmail.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Jagan Teki <jagan@amarulasolutions.com> Cc: Guido Günther <agx@sigxcpu.org> Cc: Joel Stanley <joel@jms.id.au> [airlied: fixed XA limit build breakage, Rodrigo also submitted the same patch, but I squashed it in the merge.] Signed-off-by: Dave Airlie <airlied@redhat.com> From: Sean Paul <sean@poorly.run> Link: https://patchwork.freedesktop.org/patch/msgid/20190404201016.GA139524@art_vandelay
2019-04-04drm: Add ASPEED GFX driverJoel Stanley
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: Joel Stanley <joel@jms.id.au> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190403001909.31637-3-joel@jms.id.au
2019-04-03video: backlight: Remove useless BACKLIGHT_LCD_SUPPORT kernel symbolAlexander Shiyan
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: Alexander Shiyan <shc_work@mail.ru> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-04-03Merge branch 'drm-next-5.2' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-next amdgpu: - Switch to HMM for userptr (reverted until HMM fixes land) - New experimental SMU 11 replacement for powerplay for vega20 (not enabled by default) - Initial RAS support for vega20 - BACO support for vega12 - BACO fixes for vega20 - Rework IH handling for page fault and retry interrupts - Cleanly split CPU and GPU paths for GPUVM updates - Powerplay fixes - XGMI fixes - Rework how DC interacts with atomic for planes - Clean up and simplify DC/Powerplay interfaces - Misc cleanups and bug fixes amdkfd: - Switch to HMM for userptr (reverted until HMM fixes land) - Add initial RAS support - MQD fixes ttm: - Unify DRM_FILE_PAGE_OFFSET handling - Account for kernel allocations in kernel zone only - Misc cleanups Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190402170820.22197-1-alexander.deucher@amd.com
2019-04-01drm/lima: driver for ARM Mali4xx GPUsQiang Yu
- 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: Andreas Baierl <ichgeh@imkreisrum.de> Signed-off-by: Erico Nunes <nunes.erico@gmail.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Simon Shields <simon@lineageos.org> Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Qiang Yu <yuq825@gmail.com> Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Rob Herring <robh@kerrnel.org> Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/291200/
2019-03-19drm/amdgpu: remove chashChristian König
Remove the chash implementation for now since it isn't used any more. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-03-14drm: Add library for shmem backed GEM objectsNoralf Trønnes
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: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20190313004344.24169-1-robh@kernel.org
2019-03-11drm/vboxvideo: Move the vboxvideo driver out of stagingHans de Goede
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190304164724.10210-4-hdegoede@redhat.com
2019-01-17drm/cma-helper: Remove unused fbdev codeNoralf Trønnes
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: Noralf Trønnes <noralf@tronnes.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190114121059.20704-1-noralf@tronnes.org
2018-10-03drm/fb_helper: Allow leaking fbdev smem_startNeil Armstrong
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: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Maxime Ripard <maxime.ripard@bootlin.com> Tested-by: Maxime Ripard <maxime.ripard@bootlin.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Dave Airlie <airlied@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/1538136355-15383-1-git-send-email-narmstrong@baylibre.com
2018-08-28drm/amdgpu: Merge amdkfd into amdgpuAmber Lin
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: Amber Lin <Amber.Lin@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-13drm: add support for DisplayPort CEC-Tunneling-over-AUXHans Verkuil
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: Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180711132909.25409-2-hverkuil@xs4all.nl
2018-07-09drm: vkms: select DRM_KMS_HELPERArnd Bergmann
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: 854502fa0a38 ("drm/vkms: Add basic CRTC initialization") Fixes: 1c7c5fd916a0 ("drm/vkms: Introduce basic VKMS driver") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180709154901.1989316-1-arnd@arndb.de
2018-07-05drm/vkms: Add extra information about vkmsRodrigo Siqueira
Add the following additional information: authors and description in Kconfig. Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> Reviewed-by: Haneen Mohammed <hamohammed.sa@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/180770375b0537f1ba1857bdb7fdc71dd201882e.1526514457.git.rodrigosiqueiramelo@gmail.com
2018-07-05drm/vkms: Introduce basic VKMS driverHaneen Mohammed
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: Haneen Mohammed <hamohammed.sa@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180514143346.GA21695@haneen-vb
2018-05-04drm/selftests: Add drm helper selftestMaarten Lankhorst
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180503112217.37292-6-maarten.lankhorst@linux.intel.com Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2018-05-04drm/selftests: Rename the Kconfig option to CONFIG_DRM_DEBUG_SELFTESTMaarten Lankhorst
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: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Ville 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: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2018-05-03drm/v3d: Introduce a new DRM driver for Broadcom V3D V3.x+Eric Anholt
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: Eric 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
2018-04-03drm/xen-front: Add support for Xen PV display frontendOleksandr Andrushchenko
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#l1257 Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180403112317.28751-2-andr2000@gmail.com
2018-01-25Merge tag 'drm-misc-next-fixes-2018-01-18' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-next Fixes for 4.16: Fixes one Kconfig issue and a enable some panels to work properly. There is also a fix of error code return in sun4i. * tag 'drm-misc-next-fixes-2018-01-18' of git://anongit.freedesktop.org/drm/drm-misc: drm: Fix PANEL_ORIENTATION_QUIRKS breaking the Kconfig DRM menuconfig drm/panel: lvds: Handle the optional regulator case properly drm/sun4i: Fix error code in sun4i_tcon_bind()
2018-01-17drm: Fix PANEL_ORIENTATION_QUIRKS breaking the Kconfig DRM menuconfigHans de Goede
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: 404d1a3edc38 ("drm: Add panel orientation quirks, v6.") Cc: Chris Wilson <chris@chris-wilson.co.uk> Reported-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180117081032.6411-1-hdegoede@redhat.com
2017-12-21Merge branch 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-next * 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux: (171 commits) drm/amdgpu: fix test for shadow page tables drm/amd/display: Expose dpp1_set_cursor_attributes drm/amd/display: Update FMT and OPPBUF functions drm/amd/display: check for null before calling is_blanked drm/amd/display: dal 3.1.27 drm/amd/display: Fix unused variable warnings. drm/amd/display: Only blank DCN when we have set_blank implementation drm/amd/display: Put dcn_mi_registers with other structs drm/amd/display: hubp refactor drm/amd/display: integrating optc pseudocode drm/amd/display: Call validate_fbc should_enable_fbc drm/amd/display: Clean up DCN cursor code drm/amd/display: fix 180 full screen pipe split drm/amd/display: reprogram surface config on scaling change drm/amd/display: Remove dwbc from pipe_ctx drm/amd/display: Use the maximum link setting which EDP reported. drm/amd/display: Add hdr_supported flag drm/amd/display: fix global sync param retrieval when not pipe splitting drm/amd/display: Update HUBP drm/amd/display: fix rotated surface scaling ...
2017-12-07drm: move amd_gpu_scheduler into common locationLucas Stach
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: Chunming Zhou <david1.zhou@amd.com> Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-05drm: Document that drm_panel_orientation_quirks.c is shared with fbdevHans de Goede
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: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20171204223321.15799-1-hdegoede@redhat.com
2017-12-04drm: Add support for a panel-orientation connector property, v6Hans de Goede
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: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171125193553.23986-4-hdegoede@redhat.com
2017-12-04drm: Add panel orientation quirks, v6.Hans de Goede
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: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171125193553.23986-3-hdegoede@redhat.com
2017-09-28Merge branch 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-next First feature pull for 4.15. Highlights: - Per VM BO support - Lots of powerplay cleanups - Powerplay support for CI - pasid mgr for kfd - interrupt infrastructure for recoverable page faults - SR-IOV fixes - initial GPU reset for vega10 - prime mmap support - ttm page table debugging improvements - lots of bug fixes * 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux: (232 commits) drm/amdgpu: clarify license in amdgpu_trace_points.c drm/amdgpu: Add gem_prime_mmap support drm/amd/powerplay: delete dead code in smumgr drm/amd/powerplay: delete SMUM_FIELD_MASK drm/amd/powerplay: delete SMUM_WAIT_INDIRECT_FIELD drm/amd/powerplay: delete SMUM_READ_FIELD drm/amd/powerplay: delete SMUM_SET_FIELD drm/amd/powerplay: delete SMUM_READ_VFPF_INDIRECT_FIELD drm/amd/powerplay: delete SMUM_WRITE_VFPF_INDIRECT_FIELD drm/amd/powerplay: delete SMUM_WRITE_FIELD drm/amd/powerplay: delete SMU_WRITE_INDIRECT_FIELD drm/amd/powerplay: move macros to hwmgr.h drm/amd/powerplay: move PHM_WAIT_VFPF_INDIRECT_FIELD to hwmgr.h drm/amd/powerplay: move SMUM_WAIT_VFPF_INDIRECT_FIELD_UNEQUAL to hwmgr.h drm/amd/powerplay: move SMUM_WAIT_INDIRECT_FIELD_UNEQUAL to hwmgr.h drm/amd/powerplay: add new helper functions in hwmgr.h drm/amd/powerplay: use SMU_IND_INDEX/DATA_11 pair drm/amd/powerplay: refine powerplay code. drm/amd/powerplay: delete dead code in hwmgr.h drm/amd/powerplay: refine interface in struct pp_smumgr_func ...
2017-09-26drm/amdgpu: Track pending retry faults in IH and VM (v2)Felix Kuehling
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: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> (v1) Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-09-26drm/amd: Closed hash table with low overhead (v2)Felix Kuehling
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: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-09-19drm: handle override and firmware EDID at drm_do_get_edid() levelJani Nikula
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: Abdiel Janulgue <abdiel.janulgue@linux.intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1e8a710bcac46e5136c1a7b430074893c81f364a.1505203831.git.jani.nikula@intel.com
2017-08-23drm/tve200: Add new driver for TVE200Linus Walleij
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: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20170820100557.24991-2-linus.walleij@linaro.org
2017-05-08drm/pl111: Initial drm/kms driver for pl111Tom Cooksey
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: Tom Cooksey <tom.cooksey@arm.com> Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> (v5) Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170413031746.12921-2-eric@anholt.net
2017-04-14drm/stm: Add STM32 LTDC driverYannick Fertre
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: Eric Anholt <eric@anholt.net> Signed-off-by: Yannick Fertre <yannick.fertre@st.com> Signed-off-by: Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/1492164819-10513-5-git-send-email-yannick.fertre@st.com Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Eric Anholt <eric@anholt.net>
2017-02-26drm/fb-helper: Add multi buffer support for cma fbdevXinliang Liu
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: Xinliang Liu <xinliang.liu@linaro.org> [s.christ@phytec.de: Picking patch from https://lkml.org/lkml/2015/9/14/188] Signed-off-by: Stefan Christ <s.christ@phytec.de> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Dave Airlie <airlied@gmail.com> Tested-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/075ffb50cc16ab055b5d47b30163401bb356ab51.1487175046.git-series.maxime.ripard@free-electrons.com
2017-02-18drm: Add DRM support for tiny LCD displaysNoralf Trønnes
tinydrm provides helpers for very simple displays that can use CMA backed framebuffers and need flushing on changes. Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Thierry Reding <treding@nvidia.com>
2017-01-12drm: fix MMU dependenciesBenjamin Gaignard
DRM_VM and DRM_LEGACY shouldn't be selected if MMU isn't set. Fixes: 62a0d98a188c ("drm: allow to use mmuless SoC") Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1484211456-5759-1-git-send-email-benjamin.gaignard@linaro.org
2017-01-09drm: fix compilations issues introduced by "drm: allow to use mmuless SoC"Benjamin Gaignard
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: Benjamin Gaignard <benjamin.gaignard@linaro.org> Fixes: 62a0d98a188c ("drm: allow to use mmuless SoC") Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1483789151-6603-1-git-send-email-benjamin.gaignard@linaro.org
2017-01-06drm: allow to use mmuless SoCBenjamin Gaignard
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: Benjamin Gaignard <benjamin.gaignard@linaro.org> [danvet: Use recommended struct member references in kernel-doc.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1483521177-21794-4-git-send-email-benjamin.gaignard@linaro.org
2017-01-06drm: compile drm_vm.c only when neededBenjamin Gaignard
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: Benjamin Gaignard <benjamin.gaignard@linaro.org> [danvet: Fix conflict.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-12-27drm: Add some kselftests for the DRM range manager (struct drm_mm)Chris Wilson
First we introduce a smattering of infrastructure for writing selftests. The idea is that we have a test module that exercises a particular portion of the exported API, and that module provides a set of tests that can either be run as an ensemble via kselftest or individually via an igt harness (in this case igt/drm_mm). To accommodate selecting individual tests, we export a boolean parameter to control selection of each test - that is hidden inside a bunch of reusable boilerplate macros to keep writing the tests simple. v2: Choose a random random_seed unless one is specified by the user. v3: More parameters to control max_iterations and max_prime of the tests. Testcase: igt/drm_mm Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161222083641.2691-7-chris@chris-wilson.co.uk
2016-12-27drm: Add a simple generator of random permutationsChris Wilson
When testing, we want a random but yet reproducible order in which to process elements. Here we create an array which is a random (using the Tausworthe PRNG) permutation of the order in which to execute. Note these are simple helpers intended to be merged upstream in lib/ v2: Tidier code by David Herrmann v3: Add reminder that this code is intended to be temporary, with at least the bulk of the prandom changes going to lib/ Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: David Herrmann <dh.herrmann@gmail.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161222083641.2691-6-chris@chris-wilson.co.uk
2016-12-08Merge tag 'meson-drm-for-4.10' of github.com:superna9999/linux into drm-nextDave Airlie
Add support for the Amlogic Meson Video Processing Unit - Only CVBS/Composite output for Amlogic Meson GXBB/GXL/GXM SoCs - Add MAINTAINERS entry - Add DT bindings documentation * tag 'meson-drm-for-4.10' of github.com:superna9999/linux: MAINTAINERS: add entry for Amlogic DRM drivers dt-bindings: display: add Amlogic Meson DRM Bindings drm: Add support for Amlogic Meson Graphic Controller