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path: root/drivers/gpu/drm/Kconfig
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2022-08-26drm: fix drm_mipi_dbi build errorsRandy Dunlap
drm_mipi_dbi needs lots of DRM_KMS_HELPER support, so select that Kconfig symbol like it is done is most other uses, and the way that it was before MIPS_DBI was moved from tinydrm to its core location. Fixes these build errors: ld: drivers/gpu/drm/drm_mipi_dbi.o: in function `mipi_dbi_buf_copy': drivers/gpu/drm/drm_mipi_dbi.c:205: undefined reference to `drm_gem_fb_get_obj' ld: drivers/gpu/drm/drm_mipi_dbi.c:211: undefined reference to `drm_gem_fb_begin_cpu_access' ld: drivers/gpu/drm/drm_mipi_dbi.c:215: undefined reference to `drm_gem_fb_vmap' ld: drivers/gpu/drm/drm_mipi_dbi.c:222: undefined reference to `drm_fb_swab' ld: drivers/gpu/drm/drm_mipi_dbi.c:224: undefined reference to `drm_fb_memcpy' ld: drivers/gpu/drm/drm_mipi_dbi.c:227: undefined reference to `drm_fb_xrgb8888_to_rgb565' ld: drivers/gpu/drm/drm_mipi_dbi.c:235: undefined reference to `drm_gem_fb_vunmap' ld: drivers/gpu/drm/drm_mipi_dbi.c:237: undefined reference to `drm_gem_fb_end_cpu_access' ld: drivers/gpu/drm/drm_mipi_dbi.o: in function `mipi_dbi_dev_init_with_formats': ld: drivers/gpu/drm/drm_mipi_dbi.o:/X64/../drivers/gpu/drm/drm_mipi_dbi.c:469: undefined reference to `drm_gem_fb_create_with_dirty' Fixes: 174102f4de23 ("drm/tinydrm: Move mipi-dbi") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kernel test robot <lkp@intel.com> Cc: Dillon Min <dillon.minfei@gmail.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Noralf Trønnes <noralf@tronnes.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: dri-devel@lists.freedesktop.org Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220823004243.11596-1-rdunlap@infradead.org
2022-08-03drm/gem: rename GEM CMA helpers to GEM DMA helpersDanilo Krummrich
Rename "GEM CMA" helpers to "GEM DMA" helpers - considering the hierarchy of APIs (mm/cma -> dma -> gem dma) calling them "GEM DMA" seems to be more applicable. Besides that, commit e57924d4ae80 ("drm/doc: Task to rename CMA helpers") requests to rename the CMA helpers and implies that people seem to be confused about the naming. In order to do this renaming the following script was used: ``` #!/bin/bash DIRS="drivers/gpu include/drm Documentation/gpu" REGEX_SYM_UPPER="[0-9A-Z_\-]" REGEX_SYM_LOWER="[0-9a-z_\-]" REGEX_GREP_UPPER="(${REGEX_SYM_UPPER}*)(GEM)_CMA_(${REGEX_SYM_UPPER}*)" REGEX_GREP_LOWER="(${REGEX_SYM_LOWER}*)(gem)_cma_(${REGEX_SYM_LOWER}*)" REGEX_SED_UPPER="s/${REGEX_GREP_UPPER}/\1\2_DMA_\3/g" REGEX_SED_LOWER="s/${REGEX_GREP_LOWER}/\1\2_dma_\3/g" # Find all upper case 'CMA' symbols and replace them with 'DMA'. for ff in $(grep -REHl "${REGEX_GREP_UPPER}" $DIRS) do sed -i -E "$REGEX_SED_UPPER" $ff done # Find all lower case 'cma' symbols and replace them with 'dma'. for ff in $(grep -REHl "${REGEX_GREP_LOWER}" $DIRS) do sed -i -E "$REGEX_SED_LOWER" $ff done # Replace all occurrences of 'CMA' / 'cma' in comments and # documentation files with 'DMA' / 'dma'. for ff in $(grep -RiHl " cma " $DIRS) do sed -i -E "s/ cma / dma /g" $ff sed -i -E "s/ CMA / DMA /g" $ff done # Rename all 'cma_obj's to 'dma_obj'. for ff in $(grep -RiHl "cma_obj" $DIRS) do sed -i -E "s/cma_obj/dma_obj/g" $ff done ``` Only a few more manual modifications were needed, e.g. reverting the following modifications in some DRM Kconfig files - select CMA if HAVE_DMA_CONTIGUOUS + select DMA if HAVE_DMA_CONTIGUOUS as well as manually picking the occurrences of 'CMA'/'cma' in comments and documentation which relate to "GEM CMA", but not "FB CMA". Also drivers/gpu/drm/Makefile was fixed up manually after renaming drm_gem_cma_helper.c to drm_gem_dma_helper.c. This patch is compile-time tested building a x86_64 kernel with `make allyesconfig && make drivers/gpu/drm`. Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Danilo Krummrich <dakr@redhat.com> Reviewed-by: Liviu Dudau <liviu.dudau@arm.com> #drivers/gpu/drm/arm Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220802000405.949236-4-dakr@redhat.com
2022-07-11drm: selftest: convert drm_mm selftest to KUnitArthur Grillo
Considering the current adoption of the KUnit framework, convert the DRM mm selftest to the KUnit API. Signed-off-by: Arthur Grillo <arthur.grillo@usp.br> Tested-by: David Gow <davidgow@google.com> Acked-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Maíra Canal <maira.canal@usp.br> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220708203052.236290-10-maira.canal@usp.br
2022-07-11drm: selftest: convert drm_damage_helper selftest to KUnitMaíra Canal
Considering the current adoption of the KUnit framework, convert the DRM damage helper selftest to the KUnit API. Co-developed-by: Arthur Grillo <arthur.grillo@usp.br> Signed-off-by: Arthur Grillo <arthur.grillo@usp.br> Tested-by: David Gow <davidgow@google.com> Acked-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Maíra Canal <maira.canal@usp.br> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220708203052.236290-2-maira.canal@usp.br
2022-06-27drm/format-helper: Add KUnit tests for drm_fb_xrgb8888_to_rgb332()José Expósito
Test the conversion from XRGB8888 to RGB332. What is tested? - Different values for the X in XRGB8888 to make sure it is ignored - Different clip values: Single pixel and full and partial buffer - Well known colors: White, black, red, green, blue, magenta, yellow and cyan - Other colors: Randomly picked - Destination pitch How to run the tests? $ ./tools/testing/kunit/kunit.py run --kunitconfig=drivers/gpu/drm/tests \ --kconfig_add CONFIG_VIRTIO_UML=y \ --kconfig_add CONFIG_UML_PCI_OVER_VIRTIO=y Suggested-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: David Gow <davidgow@google.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: José Expósito <jose.exposito89@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220620160640.3790-3-jose.exposito89@gmail.com
2022-06-09drm: Add support for the LogiCVC display controllerPaul Kocialkowski
Introduces a driver for the LogiCVC display controller, a programmable logic controller optimized for use in Xilinx Zynq-7000 SoCs and other Xilinx FPGAs. The controller is mostly configured at logic synthesis time so only a subset of configuration is left for the driver to handle. The following features are implemented and tested: - LVDS 4-bit interface; - RGB565 pixel formats; - Multiple layers and hardware composition; - Layer-wide alpha mode; The following features are implemented but untested: - Other RGB pixel formats; - Layer framebuffer configuration for version 4; - Lowest-layer used as background color; - Per-pixel alpha mode. The following features are not implemented: - YUV pixel formats; - DVI, LVDS 3-bit, ITU656 and camera link interfaces; - External parallel input for layer; - Color-keying; - LUT-based alpha modes. Additional implementation-specific notes: - Panels are only enabled after the first page flip to avoid flashing a white screen. - Depth used in context of the LogiCVC driver only counts color components to match the definition of the synthesis parameters. Support is implemented for both version 3 and 4 of the controller. With version 3, framebuffers are stored in a dedicated contiguous memory area, with a base address hardcoded for each layer. This requires using a dedicated CMA pool registered at the base address and tweaking a few offset-related registers to try to use any buffer allocated from the pool. This is done on a best-effort basis to have the hardware cope with the DRM framebuffer allocation model and there is no guarantee that each buffer allocated by GEM CMA can be used for any layer. In particular, buffers allocated below the base address for a layer are guaranteed not to be configurable for that layer. See the implementation of logicvc_layer_buffer_find_setup for specifics. Version 4 allows configuring each buffer address directly, which guarantees that any buffer can be configured. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220520141555.1429041-2-paul.kocialkowski@bootlin.com
2022-04-25drm/display: Move HDMI helpers into display-helper moduleThomas Zimmermann
Move DRM's HMDI helpers into the display/ subdirectoy and add it to DRM's display helpers. Update all affected drivers. No functional changes. The HDMI helpers were implemented in the EDID and connector code, but are actually unrelated. With the move to the display-helper library, we can remove the dependency on drm_edid.{c,h} in some driver's HDMI source files. Several of the HDMI helpers remain in EDID code because both share parts of their implementation internally. With better refractoring of the EDID code, those HDMI helpers could be moved into the display-helper library as well. v3: * fix Kconfig dependencies (Javier) v2: * reduce HDMI helpers to avoid exporting functions (Jani) * fix include statements (Jani, Javier) * update Kconfig symbols Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220421073108.19226-8-tzimmermann@suse.de
2022-04-25drm/display: Introduce a DRM display-helper moduleThomas Zimmermann
Replace the DP-helper module with a display-helper module. The support for DisplayPort becomes an internal option that drivers have to select. Update all related Kconfig and Makefile rules. Besides the existing code for DisplayPort, the new module will contain helpers for other video-output standards, such as HDMI. Drivers will have to select their required video-output helpers. Linking all display-related code into a single module avoids the proliferation of small kernel modules. The module parameters drm_dp_cec_unregister_delay, dp_aux_i2c_speed_khz, and dp_aux_i2c_transfer_size are moving from the drm_dp_helper namespace to drm_display_helper. v2: * mention module parameters in commit message (Javier) * distiguish between display module and DP support in Kconfig * update Makefile rules for DP helpers * move Kconfig rules into separate file under display/ Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220421073108.19226-4-tzimmermann@suse.de
2022-04-08drm/amdgpu: add drm buddy support to amdgpuArunpravin Paneer Selvam
- Switch to drm buddy allocator - Add resource cursor support for drm buddy v2(Matthew Auld): - replace spinlock with mutex as we call kmem_cache_zalloc (..., GFP_KERNEL) in drm_buddy_alloc() function - lock drm_buddy_block_trim() function as it calls mark_free/mark_split are all globally visible v3(Matthew Auld): - remove trim method error handling as we address the failure case at drm_buddy_block_trim() function v4: - fix warnings reported by kernel test robot <lkp@intel.com> v5: - fix merge conflict issue v6: - fix warnings reported by kernel test robot <lkp@intel.com> v7: - remove DRM_BUDDY_RANGE_ALLOCATION flag usage v8: - keep DRM_BUDDY_RANGE_ALLOCATION flag usage - resolve conflicts created by drm/amdgpu: remove VRAM accounting v2 v9(Christian): - merged the below patch - drm/amdgpu: move vram inline functions into a header - rename label name as fallback - move struct amdgpu_vram_mgr to amdgpu_vram_mgr.h - remove unnecessary flags from struct amdgpu_vram_reservation - rewrite block NULL check condition - change else style as per coding standard - rewrite the node max size - add a helper function to fetch the first entry from the list v10(Christian): - rename amdgpu_get_node() function name as amdgpu_vram_mgr_first_block v11: - if size is not aligned with min_page_size, enable is_contiguous flag, therefore, the size round up to the power of two and trimmed to the original size. v12: - rename the function names having prefix as amdgpu_vram_mgr_*() - modify the round_up() logic conforming to contiguous flag enablement or if size is not aligned to min_block_size - modify the trim logic - rename node as block wherever applicable Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220407224843.2416-1-Arunpravin.PaneerSelvam@amd.com Signed-off-by: Christian König <christian.koenig@amd.com>
2022-02-23drm/selftests: Move i915 buddy selftests into drmArunpravin
- move i915 buddy selftests into drm selftests folder - add Makefile and Kconfig support - add sanitycheck testcase Prerequisites - These series of selftests patches are created on top of drm buddy series - Enable kselftests for DRM as a module in .config Signed-off-by: Arunpravin <Arunpravin.PaneerSelvam@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220222174845.2175-1-Arunpravin.PaneerSelvam@amd.com Signed-off-by: Christian König <christian.koenig@amd.com>
2022-02-16drm: Add driver for Solomon SSD130x OLED displaysJavier Martinez Canillas
This adds a DRM driver for SSD1305, SSD1306, SSD1307 and SSD1309 Solomon OLED display controllers. It's only the core part of the driver and a bus specific driver is needed for each transport interface supported by the display controllers. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20220214133710.3278506-4-javierm@redhat.com
2022-01-19drm/selftests: Select DRM_DP_HELPERThomas Zimmermann
Resolve warnings about non-existing symbols by selecting DRM_DP_HELPER. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Fixes: adb9d5a2cc77 ("drm/dp: Move DisplayPort helpers into separate helper module") Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reported-by: kernel test robot <lkp@intel.com> Cc: Lyude Paul <lyude@redhat.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: dri-devel@lists.freedesktop.org Link: https://patchwork.freedesktop.org/patch/msgid/20220118154418.25932-1-tzimmermann@suse.de
2022-01-19drm: move the buddy allocator from i915 into common drmArunpravin
Move the base i915 buddy allocator code into drm - Move i915_buddy.h to include/drm - Move i915_buddy.c to drm root folder - Rename "i915" string with "drm" string wherever applicable - Rename "I915" string with "DRM" string wherever applicable - Fix header file dependencies - Fix alignment issues - add Makefile support for drm buddy - export functions and write kerneldoc description - Remove i915 selftest config check condition as buddy selftest will be moved to drm selftest folder cleanup i915 buddy references in i915 driver module and replace with drm buddy v2: - include header file in alphabetical order(Thomas) - merged changes listed in the body section into a single patch to keep the build intact(Christian, Jani) v3: - make drm buddy a separate module(Thomas, Christian) v4: - Fix build error reported by kernel test robot <lkp@intel.com> - removed i915 buddy selftest from i915_mock_selftests.h to avoid build error - removed selftests/i915_buddy.c file as we create a new set of buddy test cases in drm/selftests folder v5: - Fix merge conflict issue v6: - replace drm_buddy_mm structure name as drm_buddy(Thomas, Christian) - replace drm_buddy_alloc() function name as drm_buddy_alloc_blocks() (Thomas) - replace drm_buddy_free() function name as drm_buddy_free_block() (Thomas) - export drm_buddy_free_block() function - fix multiple instances of KMEM_CACHE() entry v7: - fix warnings reported by kernel test robot <lkp@intel.com> - modify the license(Christian) v8: - fix warnings reported by kernel test robot <lkp@intel.com> Signed-off-by: Arunpravin <Arunpravin.PaneerSelvam@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220118104504.2349-1-Arunpravin.PaneerSelvam@amd.com Signed-off-by: Christian König <christian.koenig@amd.com>
2022-01-17drm/dp: Move DisplayPort helpers into separate helper moduleThomas Zimmermann
Move DisplayPort functions into a separate module to reduce the size of the KMS helpers. Select DRM_DP_HELPER for all users of the code. To avoid naming conflicts, rename drm_dp_helper.c to drm_dp.c This change can help to reduce the size of the kernel binary. Some numbers from a x86-64 test build: Before: drm_kms_helper.ko: 447480 bytes After: drm_dp_helper.ko: 216632 bytes drm_kms_helper.ko: 239424 bytes For early-boot graphics, generic DRM drivers, such as simpledrm, require DRM KMS helpers to be built into the kernel. Generic helper functions for DisplayPort take up a significant portion of DRM KMS helper library. These functions are not used by generic drivers and can be loaded as a module. v3: * fix include statement in DRM selftests v2: * move DP helper code into dp/ (Jani) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Lyude Paul <lyude@redhat.com> Acked-by: Daniel Vetter <daniel@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20220114114535.29157-4-tzimmermann@suse.de
2021-12-10drm/sprd: add Unisoc's drm kms masterKevin Tang
Adds drm support for the Unisoc's display subsystem. This is drm kms driver, this driver provides support for the application framework in Android, Yocto and more. Application framework can access Unisoc's display internal peripherals through libdrm or libkms, it's test ok by modetest (DRM/KMS test tool) and Android HWComposer. v4: - Move the devm_drm_dev_alloc to master_ops->bind function. - The managed drmm_mode_config_init() it is no longer necessary for drivers to explicitly call drm_mode_config_cleanup, so delete it. v5: - Remove subdir-ccflgas-y for Makefile. - Keep the selects sorted by alphabet for Kconfig. Cc: Orson Zhai <orsonzhai@gmail.com> Cc: Chunyan Zhang <zhang.lyra@gmail.com> Signed-off-by: Kevin Tang <kevin.tang@unisoc.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211207142717.30296-3-kevin3.tang@gmail.com
2021-11-30drm: Remove CONFIG_DRM_KMS_CMA_HELPER optionThomas Zimmermann
Link drm_fb_cma_helper.o into drm_cma_helper.ko if CONFIG_DRM_KMS_HELPER has been set. Remove CONFIG_DRM_KMS_CMA_HELPER config option. Selecting KMS helpers and CMA will now automatically enable CMA KMS helpers. Some drivers' Kconfig files did not correctly select KMS or CMA helpers. Fix this as part of the change. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211106193509.17472-3-tzimmermann@suse.de
2021-11-27drm: Decouple nomodeset from CONFIG_VGA_CONSOLEJavier Martinez Canillas
This relationship was only for historical reasons and the nomodeset option should be available even on platforms that don't enable CONFIG_VGA_CONSOLE. Suggested-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211112133230.1595307-5-javierm@redhat.com
2021-11-18Merge drm/drm-next into drm-misc-nextThomas Zimmermann
Backmerging from drm/drm-next for v5.16-rc1. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
2021-11-05drm: fb_helper: improve CONFIG_FB dependencyArnd Bergmann
My previous patch correctly addressed the possible link failure, but as Jani points out, the dependency is now stricter than it needs to be. Change it again, to allow DRM_FBDEV_EMULATION to be used when DRM_KMS_HELPER and FB are both loadable modules and DRM is linked into the kernel. As a side-effect, the option is now only visible when at least one DRM driver makes use of DRM_KMS_HELPER. This is better, because the option has no effect otherwise. Fixes: 606b102876e3 ("drm: fb_helper: fix CONFIG_FB dependency") Suggested-by: Acked-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211029120307.1407047-1-arnd@kernel.org
2021-10-22drm: Move GEM memory managers into modulesThomas Zimmermann
DRM core uses the GEM base object to access GEM functionality. It does not depend on individual implementations. Move the code into modules. Also move the CMA framebuffer helpers into the CMA's module, as they're not usable without CMA. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211020131941.15367-4-tzimmermann@suse.de
2021-10-14drm: Add privacy-screen class (v4)Hans de Goede
On some new laptops the LCD panel has a builtin electronic privacy-screen. We want to export this functionality as a property on the drm connector object. But often this functionality is not exposed on the GPU but on some other (ACPI) device. This commit adds a privacy-screen class allowing the driver for these other devices to register themselves as a privacy-screen provider; and allowing the drm/kms code to get a privacy-screen provider associated with a specific GPU/connector combo. Changes in v2: - Make CONFIG_DRM_PRIVACY_SCREEN a bool which controls if the drm_privacy code gets built as part of the main drm module rather then making it a tristate which builds its own module. - Add a #if IS_ENABLED(CONFIG_DRM_PRIVACY_SCREEN) check to drm_privacy_screen_consumer.h and define stubs when the check fails. Together these 2 changes fix several dependency issues. - Remove module related code now that this is part of the main drm.ko - Use drm_class as class for the privacy-screen devices instead of adding a separate class for this Changes in v3: - Make the static inline drm_privacy_screen_get_state() stub set sw_state and hw_state to PRIVACY_SCREEN_DISABLED to squelch an uninitialized variable warning when CONFIG_DRM_PRIVICAY_SCREEN is not set Changes in v4: - Make drm_privacy_screen_set_sw_state() skip calling out to the hw if hw_state == new_sw_state Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211005202322.700909-3-hdegoede@redhat.com
2021-10-13drm/locking: add backtrace for locking contended locks without backoffJani Nikula
If drm_modeset_lock() returns -EDEADLK, the caller is supposed to drop all currently held locks using drm_modeset_backoff(). Failing to do so will result in warnings and backtraces on the paths trying to lock a contended lock. Add support for optionally printing the backtrace on the path that hit the deadlock and didn't gracefully handle the situation. For example, the patch [1] inadvertently dropped the return value check and error return on replacing calc_watermark_data() with intel_compute_global_watermarks(). The backtraces on the subsequent locking paths hitting WARN_ON(ctx->contended) were unhelpful, but adding the backtrace to the deadlock path produced this helpful printout: <7> [98.002465] drm_modeset_lock attempting to lock a contended lock without backoff: drm_modeset_lock+0x107/0x130 drm_atomic_get_plane_state+0x76/0x150 skl_compute_wm+0x251d/0x2b20 [i915] intel_atomic_check+0x1942/0x29e0 [i915] drm_atomic_check_only+0x554/0x910 drm_atomic_nonblocking_commit+0xe/0x50 drm_mode_atomic_ioctl+0x8c2/0xab0 drm_ioctl_kernel+0xac/0x140 Add new CONFIG_DRM_DEBUG_MODESET_LOCK to enable modeset lock debugging with stack depot and trace. [1] https://lore.kernel.org/r/20210924114741.15940-4-jani.nikula@intel.com v2: - default y if DEBUG_WW_MUTEX_SLOWPATH (Daniel) - depends on DEBUG_KERNEL Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Dave Airlie <airlied@gmail.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211001091444.8177-1-jani.nikula@intel.com
2021-10-01drm: fb_helper: fix CONFIG_FB dependencyArnd Bergmann
With CONFIG_FB=m and CONFIG_DRM=y, we get a link error in the fb helper: aarch64-linux-ld: drivers/gpu/drm/drm_fb_helper.o: in function `drm_fb_helper_alloc_fbi': (.text+0x10cc): undefined reference to `framebuffer_alloc' Tighten the dependency so it is only allowed in the case that DRM can link against FB. Fixes: f611b1e7624c ("drm: Avoid circular dependencies for CONFIG_FB") Link: https://lore.kernel.org/all/20210721152211.2706171-1-arnd@kernel.org/ Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210927142816.2069269-1-arnd@kernel.org
2021-09-14Merge drm/drm-next into drm-misc-nextMaxime Ripard
Kickstart new drm-misc-next cycle. Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2021-08-26drm: zte: remove obsolete DRM Support for ZTE SoCsLukas Bulwahn
Commit 89d4f98ae90d ("ARM: remove zte zx platform") removes the config ARCH_ZX. So, since then, the DRM Support for ZTE SoCs (config DRM_ZTE) depends on this removed config ARCH_ZX and cannot be selected. Fortunately, ./scripts/checkkconfigsymbols.py detects this and warns: ARCH_ZX Referencing files: drivers/gpu/drm/zte/Kconfig So, remove this obsolete DRM support. Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210819112253.16484-5-lukas.bulwahn@gmail.com
2021-08-18drm: amdgpu: remove obsolete reference to config CHASHLukas Bulwahn
Commit 04ed8459f334 ("drm/amdgpu: remove chash") removes the chash architecture and its corresponding config CHASH. There is still a reference to CHASH in the config DRM_AMDGPU in ./drivers/gpu/drm/Kconfig. Remove this obsolete reference to config CHASH. Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-08-12drm/vgem: use shmem helpersDaniel Vetter
Aside from deleting lots of code the real motivation here is to switch the mmap over to VM_PFNMAP, to be more consistent with what real gpu drivers do. They're all VM_PFNMAP, which means get_user_pages doesn't work, and even if you try and there's a struct page behind that, touching it and mucking around with its refcount can upset drivers real bad. v2: Review from Thomas: - sort #include - drop more dead code that I didn't spot somehow v3: select DRM_GEM_SHMEM_HELPER to make it build (intel-gfx-ci) v4: I got tricked by 0cf2ef46c6c0 ("drm/shmem-helper: Use cached mappings by default"), and we need WC in vgem because vgem doesn't have explicit begin/end cpu access ioctls. Also add a comment why exactly vgem has to use wc. v5: Don't set obj->base.funcs, it will default to drm_gem_shmem_funcs (Thomas) v6: vgem also needs an MMU for remapping v7: I absolutely butchered the rebases over the vgem mmap change and revert and broke the patch. Actually go back to v6 from before the vgem mmap changes. Cc: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: John Stultz <john.stultz@linaro.org> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: "Christian König" <christian.koenig@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Melissa Wen <melissa.srw@gmail.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20210812131412.2487363-4-daniel.vetter@ffwll.ch
2021-08-12drm/shmem-helper: Switch to vmf_insert_pfnDaniel Vetter
We want to stop gup, which isn't the case if we use vmf_insert_page and VM_MIXEDMAP, because that does not set pte_special. The motivation here is to stop get_user_pages from working on buffer object mmaps in general. Quoting some discussion with Thomas: On Thu, Jul 22, 2021 at 08:22:43PM +0200, Thomas Zimmermann wrote: > Am 13.07.21 um 22:51 schrieb Daniel Vetter: > > We want to stop gup, which isn't the case if we use vmf_insert_page > > What is gup? get_user_pages. It pins memory wherever it is, which badly wreaks at least ttm and could also cause trouble with cma allocations. In both cases becaue we can't move/reuse these pages anymore. Now get_user_pages fails when the memory isn't considered "normal", like with VM_PFNMAP and using vm_insert_pfn. For consistency across all dma-buf I'm trying (together with Christian König) to roll this out everywhere, for fewer surprises. E.g. for 5.14 iirc we merged a patch to do the same for ttm, where it closes an actual bug (ttm gets really badly confused when there's suddenly pinned pages where it thought it can move them). cma allcoations already use VM_PFNMAP (because that's what dma_mmap is using underneath), as is anything that's using remap_pfn_range. Worst case we have to revert this patch for shmem helpers if it breaks something, but I hope that's not the case. On the ttm side we've also had some fallout that we needed to paper over with clever tricks. v2: With this shmem gem helpers now definitely need CONFIG_MMU (0day) v3: add more depends on MMU. For usb drivers this is a bit awkward, but really it's correct: To be able to provide a contig mapping of buffers to userspace on !MMU platforms we'd need to use the cma helpers for these drivers on those platforms. As-is this wont work. Also not exactly sure why vm_insert_page doesn't go boom, because that definitely wont fly in practice since the pages are non-contig to begin with. v4: Explain the entire motivation a lot more (Thomas) Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210812131412.2487363-2-daniel.vetter@ffwll.ch
2021-07-05drm/bochs: Move to tiny/Thomas Zimmermann
The bochs driver is only ~600 lines of code. Putting it into tiny/ cleans up the DRM directory slightly. Some style problems were fixed and unneeded include statements were removed. No functional changes. v2: * make bochs_mode_funcs static (Daniel, kernel test robot) * rebase onto aperture API changes Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210702075434.27677-2-tzimmermann@suse.de
2021-06-11drm: Introduce the DP AUX busDouglas Anderson
Historically "simple" eDP panels have been handled by panel-simple which is a basic platform_device. In the device tree, the panel node was at the top level and not connected to anything else. Let's change it so that, instead, panels can be represented as being children of the "DP AUX bus". Essentially we're saying that the hierarchy that we're going to represent is the "control" connections between devices. The DP AUX bus is a control bus provided by an eDP controller (the parent) and consumed by a device like a panel (the child). The primary incentive here is to cleanly provide the panel driver the ability to communicate over the AUX bus while handling lifetime issues properly. The panel driver may want the AUX bus for controlling the backlight or querying the panel's EDID. The idea for this bus's design was hashed out over IRC [1]. [1] https://people.freedesktop.org/~cbrill/dri-log/?channel=dri-devel&date=2021-05-11 Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Lyude Paul <lyude@redhat.com> Cc: Rajeev Nandan <rajeevny@codeaurora.org> Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Douglas Anderson <dianders@chromium.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210611101711.v10.4.I787c9ba09ed5ce12500326ded73a4f7c9265b1b3@changeid
2021-06-07drm/hyperv: Add DRM driver for hyperv synthetic video deviceDeepak Rawat
DRM driver for hyperv synthetic video device, based on hyperv_fb framebuffer driver. Also added config option "DRM_HYPERV" to enabled this driver. v2: - Add support for gen2 VM - Fixed review comments v3: - Split into multiple files as suggested by Thomas Zimmermann - Fixed hibernation issue as suggested by Dexuan Cui - Use ioremap_cache as suggested by Dexuan Cui - Incorporated other review comments v4: - Fix bitrotted code - Review comments - Updated the copyright and license to match hyperv_fb v5: - Address review comments and rebased with drm-misc-next v6: - Minor code/comment improvement as suggested by Dexuan Cui Signed-off-by: Deepak Rawat <drawat.floss@gmail.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20210527112230.1274-1-drawat.floss@gmail.com
2021-06-03drm: Avoid circular dependencies for CONFIG_FBKees Cook
When cleaning up other drm config dependencies, it is too easy to create larger problems. Instead, mark CONFIG_FB as a "depends": drivers/gpu/drm/Kconfig:74:error: recursive dependency detected! Suggested-by: Arnd Bergmann <arnd@kernel.org> Link: https://lore.kernel.org/lkml/CAK8P3a3jUQs6c5tESSNMbqfuymewj9FhqRizyHcfOXf8Rgy-nA@mail.gmail.com/ Signed-off-by: Kees Cook <keescook@chromium.org> [danvet: Rebase, the symbol has changed.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210602215252.695994-2-keescook@chromium.org
2021-05-26drm/kconfig: Remove unused select of DRM_KMS_FB_HELPERThomas Zimmermann
The option DRM_KMS_FB_HELPER has been removed. Also remove the last remaining select statement for it. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Fixes: 91185d55b32e ("drm: Remove DRM_KMS_FB_HELPER Kconfig option") Acked-by: Maxime Ripard <maxime@cerno.tech> Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Link: https://patchwork.freedesktop.org/patch/msgid/20210526100825.29450-1-tzimmermann@suse.de
2021-04-26drm: Remove DRM_KMS_FB_HELPER Kconfig optionThomas Zimmermann
It's only used by DRM_FBDEV_EMULATION, so inline it there. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210415110040.23525-5-tzimmermann@suse.de
2021-03-16drm: Add GUD USB Display driverNoralf Trønnes
This adds a USB display driver with the intention that it can be used with future USB interfaced low end displays/adapters. The Linux gadget device driver will serve as the canonical device implementation. The following DRM properties are supported: - Plane rotation - Connector TV properties There is also support for backlight brightness exposed as a backlight device. Display modes can be made available to the host driver either as DRM display modes or through EDID. If both are present, EDID is just passed on to userspace. Performance is preferred over color depth, so if the device supports RGB565, DRM_CAP_DUMB_PREFERRED_DEPTH will return 16. If the device transfer buffer can't fit an uncompressed framebuffer update, the update is split up into parts that do fit. Optimal user experience is achieved by providing damage reports either by setting FB_DAMAGE_CLIPS on pageflips or calling DRM_IOCTL_MODE_DIRTYFB. LZ4 compression is used if the device supports it. The driver supports a one bit monochrome transfer format: R1. This is not implemented in the gadget driver. It is added in preparation for future monochrome e-ink displays. The driver is MIT licensed to smooth the path for any BSD port of the driver. v2: - Use devm_drm_dev_alloc() and drmm_mode_config_init() - drm_fbdev_generic_setup: Use preferred_bpp=0, 16 was a copy paste error - The drm_backlight_helper is dropped, copy in the code - Support protocol version backwards compatibility for device v3: - Use donated Openmoko USB pid - Use direct compression from framebuffer when pitch matches, not only on full frames, so split updates can benefit - Use __le16 in struct gud_drm_req_get_connector_status - Set edid property when the device only provides edid - Clear compression fields in struct gud_drm_req_set_buffer - Fix protocol version negotiation - Remove mode->vrefresh, it's calculated v4: - Drop the status req polling which was a workaround for something that turned out to be a dwc2 udc driver problem - Add a flag for the Linux gadget to require a status request on SET operations. Other devices will only get status req on STALL errors - Use protocol specific error codes (Peter) - Add a flag for devices that want to receive the entire framebuffer on each flush (Lubomir) - Retry a failed framebuffer flush - If mode has changed wait for worker and clear pending damage before queuing up new damage, fb width/height might have changed - Increase error counter on bulk transfer failures - Use DRM_MODE_CONNECTOR_USB - Handle R1 kmalloc error (Peter) - Don't try and replicate the USB get descriptor request standard for the display descriptor (Peter) - Make max_buffer_size optional (Peter), drop the pow2 requirement since it's not necessary anymore. - Don't pre-alloc a control request buffer, it was only 4k - Let gud.h describe the whole protocol explicitly and don't let DRM leak into it (Peter) - Drop display mode .hskew and .vscan from the protocol - Shorten names: s/GUD_DRM_/GUD_/ s/gud_drm_/gud_/ (Peter) - Fix gud_pipe_check() connector picking when switching connector - Drop gud_drm_driver_gem_create_object() cached is default now - Retrieve USB device from struct drm_device.dev instead of keeping a pointer - Honour fb->offsets[0] - Fix mode fetching when connector status is forced - Check EDID length reported by the device - Use drm_do_get_edid() so userspace can overrride EDID - Set epoch counter to signal connector status change - gud_drm_driver can be const now v5: - GUD_DRM_FORMAT_R1: Use non-human ascii values (Daniel) - Change name to: GUD USB Display (Thomas, Simon) - Change one __u32 -> __le32 in protocol header - Always log fb flush errors, unless the previous one failed - Run backlight update in a worker to avoid upsetting lockdep (Daniel) - Drop backlight_ops.get_brightness, there's no readback from the device so it doesn't really add anything. - Set dma mask, needed by dma-buf importers v6: - Use obj-y in Makefile (Peter) - Fix missing le32_to_cpu() when using GUD_DISPLAY_MAGIC (Peter) - Set initial brightness on backlight device v7: - LZ4_compress_default() can return zero, check for that - Fix memory leak in gud_pipe_check() error path (Peter) - Improve debug and error messages (Peter) - Don't pass length in protocol structs (Peter) - Pass USB interface to gud_usb_control_msg() et al. (Peter) - Improve gud_connector_fill_properties() (Peter) - Add GUD_PIXEL_FORMAT_RGB111 (Peter) - Remove GUD_REQ_SET_VERSION (Peter) - Fix DRM_IOCTL_MODE_OBJ_SETPROPERTY and the rotation property - Fix dma-buf import (Thomas) v8: - Forgot to filter RGB111 from reaching userspace - Handle a device that only returns unknown device properties (Peter) - s/GUD_PIXEL_FORMAT_RGB111/GUD_PIXEL_FORMAT_XRGB1111/ (Peter) - Fix R1 and XRGB1111 format conversion - Add FIXME about Big Endian being broken (Peter, Ilia) Cc: Lubomir Rintel <lkundrak@v3.sk> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Peter Stuge <peter@stuge.se> Tested-by: Peter Stuge <peter@stuge.se> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210313112545.37527-4-noralf@tronnes.org
2021-03-16Merge tag 'drm-misc-next-2021-03-03' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for 5.13: UAPI Changes: Cross-subsystem Changes: Core Changes: - %p4cc printk format modifier - atomic: introduce drm_crtc_commit_wait, rework atomic plane state helpers to take the drm_commit_state structure - dma-buf: heaps rework to return a struct dma_buf - simple-kms: Add plate state helpers - ttm: debugfs support, removal of sysfs Driver Changes: - Convert drivers to shadow plane helpers - arc: Move to drm/tiny - ast: cursor plane reworks - gma500: Remove TTM and medfield support - mxsfb: imx8mm support - panfrost: MMU IRQ handling rework - qxl: rework to better handle resources deallocation, locking - sun4i: Add alpha properties for UI and VI layers - vc4: RPi4 CEC support - vmwgfx: doc cleanup Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20210303100600.dgnkadonzuvfnu22@gilmour
2021-03-12Merge tag 'amd-drm-fixes-5.12-2021-03-10' of ↵Dave Airlie
https://gitlab.freedesktop.org/agd5f/linux into drm-fixes amd-drm-fixes-5.12-2021-03-10: amdgpu: - Fix aux backlight control - Add a backlight override parameter - Various display fixes - PCIe DPM fix for vega - Polaris watermark fixes - Additional S0ix fix radeon: - Fix GEM regression - Fix AGP dependency handling Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210310221141.3974-1-alexander.deucher@amd.com
2021-03-10drm/radeon: fix AGP dependencyChristian König
When AGP is compiled as module radeon must be compiled as module as well. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-02-25drm/arc: Move to drm/tinyDaniel Vetter
Because it is. v2: Delete now unused crtc funcs (0day) Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Alexey Brodkin <abrodkin@synopsys.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210112084358.2771527-15-daniel.vetter@ffwll.ch
2021-02-22Merge tag 'topic/kcmp-kconfig-2021-02-22' of ↵Linus Torvalds
git://anongit.freedesktop.org/drm/drm Pull kcmp kconfig update from Daniel Vetter: "Make the kcmp syscall available independently of checkpoint/restore. drm userspaces uses this, systemd uses this, so makes sense to pull it out from the checkpoint-restore bundle. Kees reviewed this from security pov and is happy with the final version" Link: https://lwn.net/Articles/845448/ * tag 'topic/kcmp-kconfig-2021-02-22' of git://anongit.freedesktop.org/drm/drm: kcmp: Support selection of SYS_kcmp without CHECKPOINT_RESTORE
2021-02-16kcmp: Support selection of SYS_kcmp without CHECKPOINT_RESTOREChris Wilson
Userspace has discovered the functionality offered by SYS_kcmp and has started to depend upon it. In particular, Mesa uses SYS_kcmp for os_same_file_description() in order to identify when two fd (e.g. device or dmabuf) point to the same struct file. Since they depend on it for core functionality, lift SYS_kcmp out of the non-default CONFIG_CHECKPOINT_RESTORE into the selectable syscall category. Rasmus Villemoes also pointed out that systemd uses SYS_kcmp to deduplicate the per-service file descriptor store. Note that some distributions such as Ubuntu are already enabling CHECKPOINT_RESTORE in their configs and so, by extension, SYS_kcmp. References: https://gitlab.freedesktop.org/drm/intel/-/issues/3046 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Kees Cook <keescook@chromium.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Will Drewry <wad@chromium.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Dave Airlie <airlied@gmail.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Cyrill Gorcunov <gorcunov@gmail.com> Cc: stable@vger.kernel.org Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> # DRM depends on kcmp Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> # systemd uses kcmp Reviewed-by: Cyrill Gorcunov <gorcunov@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210205220012.1983-1-chris@chris-wilson.co.uk
2021-01-13drm: Merge CONFIG_DRM_VM into CONFIG_DRM_LEGACYThomas Zimmermann
CONFIG_DRM_VM gets selected by CONFIG_DRM_LEGACY, but nothing else. So remove it and build drm_vm.o as part of CONFIG_DRM_LEGACY. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210112081035.6882-5-tzimmermann@suse.de
2020-11-09drm/gem: Use struct dma_buf_map in GEM vmap ops and convert GEM backendsThomas Zimmermann
This patch replaces the vmap/vunmap's use of raw pointers in GEM object functions with instances of struct dma_buf_map. GEM backends are converted as well. For most of them, this simply changes the returned type. TTM-based drivers now return information about the location of the memory, either system or I/O memory. GEM VRAM helpers and qxl now use ttm_bo_vmap() et al. Amdgpu, nouveau and radeon use drm_gem_ttm_vmap() et al instead of implementing their own vmap callbacks. v7: * init QXL cursor to mapped BO buffer (kernel test robot) v5: * update vkms after switch to shmem v4: * use ttm_bo_vmap(), drm_gem_ttm_vmap(), et al. (Daniel, Christian) * fix a trailing { in drm_gem_vmap() * remove several empty functions instead of converting them (Daniel) * comment uses of raw pointers with a TODO (Daniel) * TODO list: convert more helpers to use struct dma_buf_map Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Christian König <christian.koenig@amd.com> Tested-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20201103093015.1063-7-tzimmermann@suse.de
2020-11-05drm/kmb: Build files for KeemBay Display driverAnitha Chrisanthus
v2: Added Maintainer entry v3: Added one more Maintainer entry v3: drop videomode_helpers Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/1604538931-26726-8-git-send-email-anitha.chrisanthus@intel.com
2020-10-29drm/ttm: nuke old page allocatorChristian König
Not used any more. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Dave Airlie <airlied@redhat.com> Reviewed-by: Madhav Chauhan <madhav.chauhan@amd.com> Tested-by: Huang Rui <ray.huang@amd.com> Link: https://patchwork.freedesktop.org/patch/397087/?series=83051&rev=1
2020-10-15drm/vkms: Switch to shmem helpersDaniel Vetter
Inspired by a patch by Chris Wilson for vgem. Plus this gives us vmap at the gem bo level, which we need for generic fbdev emulation. Luckily shmem also tracks ->vaddr, so we just need to adjust the code all over a bit to make this fit. Also wire up handle_to_fd, dunno why that was missing. v2: - Drop now unused container_of #define (Melissa) - Make sure we keep creating cached objects, this is for testing (Thomas) Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> Cc: Melissa Wen <melissa.srw@gmail.com> Cc: Haneen Mohammed <hamohammed.sa@gmail.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Melissa Wen <melissa.srw@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201013111027.375999-1-daniel.vetter@ffwll.ch
2020-07-18drm: xlnx: DRM/KMS driver for Xilinx ZynqMP DisplayPort SubsystemHyun Kwon
The Xilinx ZynqMP SoC has a hardened display pipeline named DisplayPort Subsystem. It includes a buffer manager, a video pipeline renderer (blender), an audio mixer and a DisplayPort source controller (transmitter). The DMA engine the provide data to the buffer manager, as well as the DisplayPort PHYs that drive the lanes, are external to the subsystem and interfaced using the DMA engine and PHY APIs respectively. This driver supports the DisplayPort Subsystem and implements - Two planes, for graphics and video - One CRTC that supports alpha blending - One encoder for the DisplayPort transmitter - One connector for an external monitor It currently doesn't support - Color keying - Test pattern generation - Audio - Live input from the Programmable Logic (FPGA) - Output to the Programmable Logic (FPGA) Signed-off-by: Hyun Kwon <hyun.kwon@xilinx.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-06-02Merge tag 'drm-next-2020-06-02' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm updates from Dave Airlie: "Highlights: - Core DRM had a lot of refactoring around managed drm resources to make drivers simpler. - Intel Tigerlake support is on by default - amdgpu now support p2p PCI buffer sharing and encrypted GPU memory Details: core: - uapi: error out EBUSY when existing master - uapi: rework SET/DROP MASTER permission handling - remove drm_pci.h - drm_pci* are now legacy - introduced managed DRM resources - subclassing support for drm_framebuffer - simple encoder helper - edid improvements - vblank + writeback documentation improved - drm/mm - optimise tree searches - port drivers to use devm_drm_dev_alloc dma-buf: - add flag for p2p buffer support mst: - ACT timeout improvements - remove drm_dp_mst_has_audio - don't use 2nd TX slot - spec recommends against it bridge: - dw-hdmi various improvements - chrontel ch7033 support - fix stack issues with old gcc hdmi: - add unpack function for drm infoframe fbdev: - misc fbdev driver fixes i915: - uapi: global sseu pinning - uapi: OA buffer polling - uapi: remove generated perf code - uapi: per-engine default property values in sysfs - Tigerlake GEN12 enabled. - Lots of gem refactoring - Tigerlake enablement patches - move to drm_device logging - Icelake gamma HW readout - push MST link retrain to hotplug work - bandwidth atomic helpers - ICL fixes - RPS/GT refactoring - Cherryview full-ppgtt support - i915 locking guidelines documented - require linear fb stride to be 512 multiple on gen9 - Tigerlake SAGV support amdgpu: - uapi: encrypted GPU memory handling - uapi: add MEM_SYNC IB flag - p2p dma-buf support - export VRAM dma-bufs - FRU chip access support - RAS/SR-IOV updates - Powerplay locking fixes - VCN DPG (powergating) enablement - GFX10 clockgating fixes - DC fixes - GPU reset fixes - navi SDMA fix - expose FP16 for modesetting - DP 1.4 compliance fixes - gfx10 soft recovery - Improved Critical Thermal Faults handling - resizable BAR on gmc10 amdkfd: - uapi: GWS resource management - track GPU memory per process - report PCI domain in topology radeon: - safe reg list generator fixes nouveau: - HD audio fixes on recent systems - vGPU detection (fail probe if we're on one, for now) - Interlaced mode fixes (mostly avoidance on Turing, which doesn't support it) - SVM improvements/fixes - NVIDIA format modifier support - Misc other fixes. adv7511: - HDMI SPDIF support ast: - allocate crtc state size - fix double assignment - fix suspend bochs: - drop connector register cirrus: - move to tiny drivers. exynos: - fix imported dma-buf mapping - enable runtime PM - fixes and cleanups mediatek: - DPI pin mode swap - config mipi_tx current/impedance lima: - devfreq + cooling device support - task handling improvements - runtime PM support pl111: - vexpress init improvements - fix module auto-load rcar-du: - DT bindings conversion to YAML - Planes zpos sanity check and fix - MAINTAINERS entry for LVDS panel driver mcde: - fix return value mgag200: - use managed config init stm: - read endpoints from DT vboxvideo: - use PCI managed functions - drop WC mtrr vkms: - enable cursor by default rockchip: - afbc support virtio: - various cleanups qxl: - fix cursor notify port hisilicon: - 128-byte stride alignment fix sun4i: - improved format handling" * tag 'drm-next-2020-06-02' of git://anongit.freedesktop.org/drm/drm: (1401 commits) drm/amd/display: Fix potential integer wraparound resulting in a hang drm/amd/display: drop cursor position check in atomic test drm/amdgpu: fix device attribute node create failed with multi gpu drm/nouveau: use correct conflicting framebuffer API drm/vblank: Fix -Wformat compile warnings on some arches drm/amdgpu: Sync with VM root BO when switching VM to CPU update mode drm/amd/display: Handle GPU reset for DC block drm/amdgpu: add apu flags (v2) drm/amd/powerpay: Disable gfxoff when setting manual mode on picasso and raven drm/amdgpu: fix pm sysfs node handling (v2) drm/amdgpu: move gpu_info parsing after common early init drm/amdgpu: move discovery gfx config fetching drm/nouveau/dispnv50: fix runtime pm imbalance on error drm/nouveau: fix runtime pm imbalance on error drm/nouveau: fix runtime pm imbalance on error drm/nouveau/debugfs: fix runtime pm imbalance on error drm/nouveau/nouveau/hmm: fix migrate zero page to GPU drm/nouveau/nouveau/hmm: fix nouveau_dmem_chunk allocations drm/nouveau/kms/nv50-: Share DP SST mode_valid() handling with MST drm/nouveau/kms/nv50-: Move 8BPC limit for MST into nv50_mstc_get_modes() ...
2020-04-28drm/cirrus: Move to drm/tinyDaniel Vetter
Because it is. Huge congrats to everyone who made this kind of refactoring happen! Acked-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Dave Airlie <airlied@redhat.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: virtualization@lists.linux-foundation.org Link: https://patchwork.freedesktop.org/patch/msgid/20200415074034.175360-38-daniel.vetter@ffwll.ch
2020-04-20docs: fix broken references to text filesMauro Carvalho Chehab
Several references got broken due to txt to ReST conversion. Several of them can be automatically fixed with: scripts/documentation-file-ref-check --fix Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> # hwtracing/coresight/Kconfig Reviewed-by: Paul E. McKenney <paulmck@kernel.org> # memory-barrier.txt Acked-by: Alex Shi <alex.shi@linux.alibaba.com> # translations/zh_CN Acked-by: Federico Vaga <federico.vaga@vaga.pv.it> # translations/it_IT Acked-by: Marc Zyngier <maz@kernel.org> # kvm/arm64 Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/6f919ddb83a33b5f2a63b6b5f0575737bb2b36aa.1586881715.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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