Changes in Makefile

99624bdf - drm/gpusvm: Add support for GPU Shared Virtual Memory

Thu, 06 Mar 2025 01:26:31 +0000

drm/gpusvm: Add support for GPU Shared Virtual MemoryThis patch introduces support for GPU Shared Virtual Memory (SVM) in theDirect Rendering Manager (DRM) subsystem. SVM allows for seamlesssharing of memory between the CPU and GPU, enhancing performance andflexibility in GPU computing tasks.The patch adds the necessary infrastructure for SVM, including datastructures and functions for managing SVM ranges and notifiers. It alsoprovides mechanisms for allocating, deallocating, and migrating memoryregions between system RAM and GPU VRAM.This is largely inspired by GPUVM.v2: - Take order into account in check pages - Clear range->pages in get pages error - Drop setting dirty or accessed bit in get pages (Vetter) - Remove mmap assert for cpu faults - Drop mmap write lock abuse (Vetter, Christian) - Decouple zdd from range (Vetter, Oak) - Add drm_gpusvm_range_evict, make it work with coherent pages - Export drm_gpusvm_evict_to_sram, only use in BO evict path (Vetter) - mmget/put in drm_gpusvm_evict_to_sram - Drop range->vram_alloation variable - Don't return in drm_gpusvm_evict_to_sram until all pages detached - Don't warn on mixing sram and device pages - Update kernel doc - Add coherent page support to get pages - Use DMA_FROM_DEVICE rather than DMA_BIDIRECTIONAL - Add struct drm_gpusvm_vram and ops (Thomas) - Update the range's seqno if the range is valid (Thomas) - Remove the is_unmapped check before hmm_range_fault (Thomas) - Use drm_pagemap (Thomas) - Drop kfree_mapping (Thomas) - dma mapp pages under notifier lock (Thomas) - Remove ctx.prefault - Remove ctx.mmap_locked - Add ctx.check_pages - s/vram/devmem (Thomas)v3: - Fix memory leak drm_gpusvm_range_get_pages - Only migrate pages with same zdd on CPU fault - Loop over al VMAs in drm_gpusvm_range_evict - Make GPUSVM a drm level module - GPL or MIT license - Update main kernel doc (Thomas) - Prefer foo() vs foo for functions in kernel doc (Thomas) - Prefer functions over macros (Thomas) - Use unsigned long vs u64 for addresses (Thomas) - Use standard interval_tree (Thomas) - s/drm_gpusvm_migration_put_page/drm_gpusvm_migration_unlock_put_page (Thomas) - Drop err_out label in drm_gpusvm_range_find_or_insert (Thomas) - Fix kernel doc in drm_gpusvm_range_free_pages (Thomas) - Newlines between functions defs in header file (Thomas) - Drop shall language in driver vfunc kernel doc (Thomas) - Move some static inlines from head to C file (Thomas) - Don't allocate pages under page lock in drm_gpusvm_migrate_populate_ram_pfn (Thomas) - Change check_pages to a thresholdv4: - Fix NULL ptr deref in drm_gpusvm_migrate_populate_ram_pfn (Thomas, Himal) - Fix check pages threshold - Check for range being unmapped under notifier lock in get pages (Testing) - Fix characters per line - Drop WRITE_ONCE for zdd->devmem_allocation assignment (Thomas) - Use completion for devmem_allocation->detached (Thomas) - Make GPU SVM depend on ZONE_DEVICE (CI) - Use hmm_range_fault for eviction (Thomas) - Drop zdd worker (Thomas)v5: - Select Kconfig deps (CI) - Set device to NULL in __drm_gpusvm_migrate_to_ram (Matt Auld, G.G.) - Drop Thomas's SoB (Thomas) - Add drm_gpusvm_range_start/end/size helpers (Thomas) - Add drm_gpusvm_notifier_start/end/size helpers (Thomas) - Absorb drm_pagemap name changes (Thomas) - Fix driver lockdep assert (Thomas) - Move driver lockdep assert to static function (Thomas) - Assert mmap lock held in drm_gpusvm_migrate_to_devmem (Thomas) - Do not retry forever on eviction (Thomas)v6: - Fix drm_gpusvm_get_devmem_page alignment (Checkpatch) - Modify Kconfig (CI) - Compile out lockdep asserts (CI)v7: - Add kernel doc for flags fields (CI, Auld)Cc: Simona Vetter Cc: Dave Airlie Cc: Christian König Cc: Thomas Hellström Cc: Signed-off-by: Matthew Brost Reviewed-by: Thomas Hellström Link: https://patchwork.freedesktop.org/patch/msgid/20250306012657.3505757-7-matthew.brost@intel.com List of files: /linux-6.15/drivers/gpu/drm/Makefile

332122eb - drm: adp: Add Apple Display Pipe driver

Mon, 24 Feb 2025 11:02:17 +0000

drm: adp: Add Apple Display Pipe driverThis display controller is present on M-series chips and is usedto drive the touchbar display.Co-developed-by: Janne Grunau Signed-off-by: Janne Grunau Reviewed-by: Dmitry Baryshkov Reviewed-by: Neal Gompa Signed-off-by: Sasha Finkelstein Link: https://patchwork.freedesktop.org/patch/msgid/20250224-adpdrm-v8-2-cccf96710f0f@gmail.comSigned-off-by: Alyssa Rosenzweig List of files: /linux-6.15/drivers/gpu/drm/Makefile

efc84f66 - drm: drop i2c subdir from Makefile

Thu, 13 Feb 2025 00:49:41 +0000

drm: drop i2c subdir from MakefileThe commit 325ba852d148 ("drm/i2c: move TDA998x driver underdrivers/gpu/drm/bridge") deleted the drivers/gpu/drm/i2c/ subdir, butdidn't update upper level Makefile. Drop corresponding line to fix buildissues.Fixes: 325ba852d148 ("drm/i2c: move TDA998x driver under drivers/gpu/drm/bridge")Reported-by: Stephen Rothwell Closes: https://lore.kernel.org/dri-devel/20250213113841.7645b74c@canb.auug.org.auReviewed-by: Matthew Brost Link: https://patchwork.freedesktop.org/patch/msgid/20250213-fix-tda-v1-1-d3d34b2dc907@linaro.orgSigned-off-by: Dmitry Baryshkov List of files: /linux-6.15/drivers/gpu/drm/Makefile

62ae4568 - drm: ensure drm headers are self-contained and pass kernel-doc

Wed, 22 Jan 2025 14:41:34 +0000

drm: ensure drm headers are self-contained and pass kernel-docEnsure drm headers build, are self-contained, have header guards, andhave no kernel-doc warnings, when CONFIG_DRM_HEADER_TEST=y.The mechanism follows similar patters used in i915, xe, and usr/include.To cover include/drm, we need to recurse there using the top levelKbuild and the new include/Kbuild files.v4: check for CONFIG_WERROR in addition to CONFIG_DRM_WERRORv3: adapt to upstream build changesv2: make DRM_HEADER_TEST depend on DRMSuggested-by: Daniel Vetter Cc: David Airlie Cc: Daniel Vetter Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: Thomas Zimmermann Cc: Masahiro Yamada Acked-by: Thomas Zimmermann Acked-by: Simona Vetter Link: https://patchwork.freedesktop.org/patch/msgid/d8ad1c6d707f38a55987f616cb9650aef30b84e1.1737556766.git.jani.nikula@intel.comSigned-off-by: Jani Nikula List of files: /linux-6.15/drivers/gpu/drm/Makefile

a7358310 - drm/nouveau: vendor in drm_encoder_slave API

Sun, 05 Jan 2025 23:00:14 +0000

drm/nouveau: vendor in drm_encoder_slave APINouveau driver is the only user of the drm_encoder_slave API. Reworknecessary bits of drm_encoder_slave into the nouveau_i2c_encoder API anddrop drm_encoder_slave.c from the DRM KMS helper.Suggested-by: Laurent Pinchart Signed-off-by: Dmitry Baryshkov Signed-off-by: Danilo Krummrich Link: https://patchwork.freedesktop.org/patch/msgid/20250106-nouveau-encoder-slave-v3-2-1d37d2f2c67f@linaro.org List of files: /linux-6.15/drivers/gpu/drm/Makefile

31fa2c1c - drm/panic: Move drawing functions to drm_draw

Wed, 04 Dec 2024 15:45:00 +0000

drm/panic: Move drawing functions to drm_drawMove the color conversions, blit and fill functions to drm_draw.c,so that they can be re-used by drm_log.drm_draw is internal to the drm subsystem, and shouldn't be used bygpu drivers.Signed-off-by: Jocelyn Falempe Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20241204160014.1171469-2-jfalempe@redhat.com List of files: /linux-6.15/drivers/gpu/drm/Makefile

22e5c7ae - drm: Add panel backlight quirks

Mon, 11 Nov 2024 18:09:35 +0000

drm: Add panel backlight quirksPanels using a PWM-controlled backlight source do not have a standardway to communicate their valid PWM ranges.On x86 the ranges are read from ACPI through driver-specific tables.The built-in ranges are not necessarily correct, or may grow stale if anolder device can be retrofitted with newer panels.Add a quirk infrastructure with which the minimum valid backlight valuecan be maintained as part of the kernel.Signed-off-by: Thomas Weißschuh Tested-by: Dustin L. Howett Reviewed-by: Mario Limonciello Reviewed-by: Harry Wentland Signed-off-by: Mario Limonciello Link: https://patchwork.freedesktop.org/patch/msgid/20241111-amdgpu-min-backlight-quirk-v7-1-f662851fda69@weissschuh.net List of files: /linux-6.15/drivers/gpu/drm/Makefile

a49e7e81 - drm: Move client code to clients/ subdirectory

Fri, 08 Nov 2024 15:42:37 +0000

drm: Move client code to clients/ subdirectoryJust move some files around to keep source code well organized. Plusfix a type in the help text of CONFIG_DRM_FBDEV_LEAK_PHYS_SMEM. Nofunctional changes.Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe Link: https://patchwork.freedesktop.org/patch/msgid/20241108154600.126162-2-tzimmermann@suse.de List of files: /linux-6.15/drivers/gpu/drm/Makefile

dadd28d4 - drm/client: Add client-lib module

Mon, 14 Oct 2024 08:55:26 +0000

drm/client: Add client-lib moduleAdd drm_client_lib.ko to contain DRM's built-in client. Move theexisting client for fbdev emulation into the new module. Protect thenew module behind CONFIG_DRM_CLIENT_LIB.The Kconfig rules separate the DRM drivers from the DRM clients. Adriver can opt into the default clients, but the user configureseach client individually. To do so, DRM drivers still selectDRM_CLIENT_SELECTION. The option is now a tristate that furtherselects all dependencies of the enabled DRM clients. There'sa menu option for each client. Enabling at least one client alsoselects DRM_CLIENT_SETUP, so that drivers call drm_client_setup().New DRM clients should depend on DRM_CLIENT_SELECTION.There are existing kernel options in drm_fb_helper.o, so leave thisfile in the KMS-helper module for now.v5:- leave fbdev helpers in drm_kms_helper.ko for nowv3:- fix commit changelogv2:- keep client code in core- protect lib with DRM_CLIENT_LIB- remove duplicate line from Makefile (Jocelyn)Signed-off-by: Thomas Zimmermann Reviewed-by: Jonathan Cavitt Link: https://patchwork.freedesktop.org/patch/msgid/20241014085740.582287-13-tzimmermann@suse.de List of files: /linux-6.15/drivers/gpu/drm/Makefile

1f828b4d - drm/client: Make client support optional

Mon, 14 Oct 2024 08:55:25 +0000

drm/client: Make client support optionalOnly build client code if DRM_CLIENT has been selected. Automatiallydo so if one of the default clients has been enabled. If client supporthas been disabled, the helpers for client-related events are empty andthe regular client functions are not present.Amdgpu has an internal DRM client, so it has to select DRM_CLIENT byitself unconditionally.v3:- provide empty drm_client_debugfs_init() if DRM_CLIENT=n (kernel test robot)Signed-off-by: Thomas Zimmermann Cc: Alex Deucher Cc: "Christian König" Cc: Xinhui Pan Reviewed-by: Jonathan Cavitt Link: https://patchwork.freedesktop.org/patch/msgid/20241014085740.582287-12-tzimmermann@suse.de List of files: /linux-6.15/drivers/gpu/drm/Makefile

df7e8b52 - drm/client: Move client event handlers to drm_client_event.c

Mon, 14 Oct 2024 08:55:20 +0000

drm/client: Move client event handlers to drm_client_event.cA number of DRM-client functions serve as entry points from deviceoperations to client code. Moving them info a separate file will laterallow for a more fine-grained kernel configuration. For most of theusers it is sufficient to include instead ofthe full driver-side interface in v2:- rename new files to drm_client_event.{c,h}Signed-off-by: Thomas Zimmermann Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Joonas Lahtinen Cc: Tvrtko Ursulin Cc: Karol Herbst Cc: Lyude Paul Cc: Danilo Krummrich Reviewed-by: Jonathan Cavitt Link: https://patchwork.freedesktop.org/patch/msgid/20241014085740.582287-7-tzimmermann@suse.de List of files: /linux-6.15/drivers/gpu/drm/Makefile

689274a5 - drm: Remove DRM aperture helpers

Mon, 30 Sep 2024 13:03:26 +0000

drm: Remove DRM aperture helpersThe DRM aperture helpers are wrappers around video helpers from. There are no callers of these functions. Removethem entirely.Signed-off-by: Thomas Zimmermann Cc: Jonathan Corbet Acked-by: Javier Martinez Canillas Acked-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20240930130921.689876-29-tzimmermann@suse.de List of files: /linux-6.15/drivers/gpu/drm/Makefile

d07fdf92 - drm: Add client-agnostic setup helper

Tue, 24 Sep 2024 07:12:02 +0000

drm: Add client-agnostic setup helperDRM may support multiple in-kernel clients that run as soon as a DRMdriver has been registered. To select the client(s) in a single place,introduce drm_client_setup().Drivers that call the new helper automatically instantiate the kernel'sconfigured default clients. Only fbdev emulation is currently supported.Later versions can add support for DRM-based logging, a boot logo or evena console.Some drivers handle the color mode for clients internally. Provide thehelper drm_client_setup_with_color_mode() for them.Using the new interface requires the driver to selectDRM_CLIENT_SELECTION in its Kconfig. For now this only enables theclient-setup helpers if the fbdev client has been configured by theuser. A future patchset will further modularize client support andrework DRM_CLIENT_SELECTION to select the correct dependencies forall its clients.v5:- add CONFIG_DRM_CLIENT_SELECTION und DRM_CLIENT_SETUPv4:- fix docs for drm_client_setup_with_fourcc() (Geert)v3:- fix build errorv2:- add drm_client_setup_with_fourcc() (Laurent)- push default-format handling into actual clientsSigned-off-by: Thomas Zimmermann Reviewed-by: Laurent Pinchart Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-5-tzimmermann@suse.de List of files: /linux-6.15/drivers/gpu/drm/Makefile

5d08c44e - drm/fbdev: Add memory-agnostic fbdev client

Tue, 24 Sep 2024 07:12:01 +0000

drm/fbdev: Add memory-agnostic fbdev clientAdd an fbdev client that can work with any memory manager. Theclient implementation is the same as existing code in fbdev-dma orfbdev-shmem.Provide struct drm_driver.fbdev_probe for the new client to allocatethe surface GEM buffer. The new callback replaces fb_probe of structdrm_fb_helper_funcs, which does the same.To use the new client, DRM drivers set fbdev_probe in their structdrm_driver instance and call drm_fbdev_client_setup(). Probing andcreating the fbdev surface buffer is now independent from the otheroperations in struct drm_fb_helper. For the pixel format, the fbdevclient either uses a specified format, the value in preferred_depthor 32-bit RGB.v2:- test for struct drm_fb_helper.funcs for NULL (Sui)- respect struct drm_mode_config.preferred_depth for default formatSigned-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-4-tzimmermann@suse.de List of files: /linux-6.15/drivers/gpu/drm/Makefile

e0a8f8c6 - drm: Link drm_rect.o into DRM core module

Thu, 19 Sep 2024 18:53:43 +0000

drm: Link drm_rect.o into DRM core moduleSeveral places in drm.ko use struct drm_rect and its helpers. Thisonly works as the called interfaces are declared as static inline inthe header file. Fix the issue by linking drm_rect.o into drm.ko.Signed-off-by: Thomas Zimmermann Suggested-by: Ville Syrjälä Reviewed-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20240919185436.86790-1-tzimmermann@suse.de List of files: /linux-6.15/drivers/gpu/drm/Makefile

9da7ec9b - drm/bridge-connector: move to DRM_DISPLAY_HELPER module

Tue, 03 Sep 2024 02:01:57 +0000

drm/bridge-connector: move to DRM_DISPLAY_HELPER moduledrm_bridge_connector is a "leaf" driver, belonging to the displayhelper, rather than the "CRTC" drm_kms_helper module. Move the driverto the drm/display and add necessary Kconfig selection clauses.Suggested-by: Maxime Ripard Acked-by: Maxime Ripard Signed-off-by: Dmitry Baryshkov Link: https://patchwork.freedesktop.org/patch/msgid/20240903-drm-bridge-connector-fix-hdmi-reset-v5-2-daebde6d9857@linaro.orgSigned-off-by: Maxime Ripard List of files: /linux-6.15/drivers/gpu/drm/Makefile

cb5164ac - drm/panic: Add a QR code panic screen

Thu, 22 Aug 2024 07:33:57 +0000

drm/panic: Add a QR code panic screenThis patch adds a new panic screen, with a QR code and the kmsg dataembedded.If DRM_PANIC_SCREEN_QR_CODE_URL is set, then the kmsg data will becompressed with zlib and encoded as a numerical segment, and appendedto the URL as a URL parameter. This allows to save space, and putabout ~7500 bytes of kmsg data, in a V40 QR code.Linux distributions can customize the URL, and put a web frontend todirectly open a bug report with the kmsg data.Otherwise the kmsg data will be encoded as a binary segment (ie rawascii) and only a maximum of 2953 bytes of kmsg data will beavailable in the QR code.You can also limit the QR code size with DRM_PANIC_SCREEN_QR_VERSION.Signed-off-by: Jocelyn Falempe Reviewed-by: Alice Ryhl Link: https://patchwork.freedesktop.org/patch/msgid/20240822073852.562286-5-jfalempe@redhat.com List of files: /linux-6.15/drivers/gpu/drm/Makefile

aae4682e - drm/fbdev-generic: Convert to fbdev-ttm

Fri, 19 Apr 2024 08:29:35 +0000

drm/fbdev-generic: Convert to fbdev-ttmOnly TTM-based drivers use fbdev-generic. Rename it to fbdev-ttm andchange the symbol infix from _generic_ to _ttm_. Link the source fileinto TTM helpers, so that it is only build if TTM-based drivers havebeen selected. Select DRM_TTM_HELPER for loongson.Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-43-tzimmermann@suse.de List of files: /linux-6.15/drivers/gpu/drm/Makefile

150f431a - drm/fbdev: Add fbdev-shmem

Fri, 19 Apr 2024 08:29:01 +0000

drm/fbdev: Add fbdev-shmemAdd an fbdev emulation for SHMEM-based memory managers. The code issimilar to fbdev-generic, but does not require an additional shadowbuffer for mmap(). Fbdev-shmem operates directly on the buffer object'sSHMEM pages. Fbdev's deferred-I/O mechanism updates the hardware stateon write operations.The memory pages of GEM SHMEM cannot be detected by fbdefio. Thereforefbdev-shmem implements the .get_page() hook in struct fb_deferred_io.The fbdefio helpers call this hook to retrieve the page directly fromfbdev-shmem instead of trying to detect it internally.v3:- clarify on get_page mechanism in commit description (Javier)v2:- use drm_driver_legacy_fb_format() (Geert)Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-9-tzimmermann@suse.de List of files: /linux-6.15/drivers/gpu/drm/Makefile

bf9fb17c - drm/panic: Add a drm panic handler

Tue, 09 Apr 2024 16:30:41 +0000

drm/panic: Add a drm panic handlerThis module displays a user friendly message when a kernel panicoccurs. It currently doesn't contain any debug information,but that can be added later.v2 * Use get_scanout_buffer() instead of the drm client API. (Thomas Zimmermann) * Add the panic reason to the panic message (Nerdopolis) * Add an exclamation mark (Nerdopolis)v3 * Rework the drawing functions, to write the pixels line by line and to use the drm conversion helper to support other formats. (Thomas Zimmermann)v4 * Use drm_fb_r1_to_32bit for fonts (Thomas Zimmermann) * Remove the default y to DRM_PANIC config option (Thomas Zimmermann) * Add foreground/background color config option * Fix the bottom lines not painted if the framebuffer height is not a multiple of the font height. * Automatically register the device to drm_panic, if the function get_scanout_buffer exists. (Thomas Zimmermann)v5 * Change the drawing API, use drm_fb_blit_from_r1() to draw the font. * Also add drm_fb_fill() to fill area with background color. * Add draw_pixel_xy() API for drivers that can't provide a linear buffer. * Add a flush() callback for drivers that needs to synchronize the buffer. * Add a void *private field, so drivers can pass private data to draw_pixel_xy() and flush().v6 * Fix sparse warning for panic_msg and logo.v7 * Add select DRM_KMS_HELPER for the color conversion functions.v8 * Register directly each plane to the panic notifier (Sima) * Add raw_spinlock to properly handle concurrency (Sima) * Register plane instead of device, to avoid looping through plane list, and simplify code. * Replace get_scanout_buffer() logic with drm_panic_set_buffer() (Thomas Zimmermann) * Removed the draw_pixel_xy() API, will see later if it can be added back.v9 * Revert to using get_scanout_buffer() (Sima) * Move get_scanout_buffer() and panic_flush() to the plane helper functions (Thomas Zimmermann) * Register all planes with get_scanout_buffer() to the panic notifier * Use drm_panic_lock() to protect against race (Sima)v10 * Move blit and fill functions back in drm_panic (Thomas Zimmermann). * Simplify the text drawing functions. * Use kmsg_dumper instead of panic_notifier (Sima).v12 * Use array for map and pitch in struct drm_scanout_buffer to support multi-planar format later. (Thomas Zimmermann) * Better indent struct drm_scanout_buffer declaration. (Thomas Zimmermann)Signed-off-by: Jocelyn Falempe Link: https://patchwork.freedesktop.org/patch/msgid/20240409163432.352518-3-jfalempe@redhat.comAcked-by: Daniel Vetter List of files: /linux-6.15/drivers/gpu/drm/Makefile