kernel/linux.git/drivers/gpu/drm/Kconfig, branch v6.12.80

drm/panic: Move drawing functions to drm_draw

2025-08-28T14:31:11+00:00

[ Upstream commit 31fa2c1ca0b239f64eaf682f1685bbbd74fc0181 ] Move 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 by gpu drivers. Signed-off-by: Jocelyn Falempe Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20241204160014.1171469-2-jfalempe@redhat.com Stable-dep-of: 05663d88fd0b ("drm/tests: Fix drm_test_fb_xrgb8888_to_xrgb2101010() on big-endian") Signed-off-by: Sasha Levin

drm: Select DRM_KMS_HELPER from DRM_DEBUG_DP_MST_TOPOLOGY_REFS

2025-05-09T07:50:33+00:00

commit 32dce6b1949a696dc7abddc04de8cbe35c260217 upstream. Using "depends on" and "select" for the same Kconfig symbol is known to cause circular dependencies (cmp. "Kconfig recursive dependency limitations" in Documentation/kbuild/kconfig-language.rst. DRM drivers are selecting drm helpers so do the same for DRM_DEBUG_DP_MST_TOPOLOGY_REFS. Fixes following circular dependency reported on x86 for the downstream Asahi Linux tree: error: recursive dependency detected! symbol DRM_KMS_HELPER is selected by DRM_GEM_SHMEM_HELPER symbol DRM_GEM_SHMEM_HELPER is selected by RUST_DRM_GEM_SHMEM_HELPER symbol RUST_DRM_GEM_SHMEM_HELPER is selected by DRM_ASAHI symbol DRM_ASAHI depends on RUST symbol RUST depends on CALL_PADDING symbol CALL_PADDING depends on OBJTOOL symbol OBJTOOL is selected by STACK_VALIDATION symbol STACK_VALIDATION depends on UNWINDER_FRAME_POINTER symbol UNWINDER_FRAME_POINTER is part of choice block at arch/x86/Kconfig.debug:224 symbol unknown is visible depending on UNWINDER_GUESS symbol UNWINDER_GUESS prompt is visible depending on STACKDEPOT symbol STACKDEPOT is selected by DRM_DEBUG_DP_MST_TOPOLOGY_REFS symbol DRM_DEBUG_DP_MST_TOPOLOGY_REFS depends on DRM_KMS_HELPER Fixes: 12a280c72868 ("drm/dp_mst: Add topology ref history tracking for debugging") Cc: stable@vger.kernel.org Signed-off-by: Janne Grunau Acked-by: Thomas Zimmermann Link: https://lore.kernel.org/r/20250304-drm_debug_dp_mst_topo_kconfig-v1-1-e16fd152f258@jannau.net Signed-off-by: Alyssa Rosenzweig Signed-off-by: Greg Kroah-Hartman

drm: Add client-agnostic setup helper

2025-03-13T12:02:02+00:00

[ Upstream commit d07fdf9225922d3e36ebd13ccab3df62b1ccdab3 ] DRM may support multiple in-kernel clients that run as soon as a DRM driver 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's configured default clients. Only fbdev emulation is currently supported. Later versions can add support for DRM-based logging, a boot logo or even a console. Some drivers handle the color mode for clients internally. Provide the helper drm_client_setup_with_color_mode() for them. Using the new interface requires the driver to select DRM_CLIENT_SELECTION in its Kconfig. For now this only enables the client-setup helpers if the fbdev client has been configured by the user. A future patchset will further modularize client support and rework DRM_CLIENT_SELECTION to select the correct dependencies for all its clients. v5: - add CONFIG_DRM_CLIENT_SELECTION und DRM_CLIENT_SETUP v4: - fix docs for drm_client_setup_with_fourcc() (Geert) v3: - fix build error v2: - add drm_client_setup_with_fourcc() (Laurent) - push default-format handling into actual clients Signed-off-by: Thomas Zimmermann Reviewed-by: Laurent Pinchart Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-5-tzimmermann@suse.de Stable-dep-of: 6b481ab0e685 ("drm/nouveau: select FW caching") Signed-off-by: Sasha Levin

drm: Add panel backlight quirks

2025-02-17T09:04:45+00:00

[ Upstream commit 22e5c7ae12145af13785e3ff138395d5b1a22116 ] Panels using a PWM-controlled backlight source do not have a standard way 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 an older device can be retrofitted with newer panels. Add a quirk infrastructure with which the minimum valid backlight value can 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 Signed-off-by: Sasha Levin

drm/fbdev-dma: Select FB_DEFERRED_IO

2024-12-09T09:41:12+00:00

commit 67c40c9b2ec5f375bf78274d4e9ef0e3b8315bea upstream. Commit 808a40b69468 ("drm/fbdev-dma: Implement damage handling and deferred I/O") added deferred I/O for fbdev-dma. Also select the Kconfig symbol FB_DEFERRED_IO (via FB_DMAMEM_HELPERS_DEFERRED). Fixes build errors about missing fbdefio, such as drivers/gpu/drm/drm_fbdev_dma.c:218:26: error: 'struct drm_fb_helper' has no member named 'fbdefio' 218 | fb_helper->fbdefio.delay = HZ / 20; | ^~ drivers/gpu/drm/drm_fbdev_dma.c:219:26: error: 'struct drm_fb_helper' has no member named 'fbdefio' 219 | fb_helper->fbdefio.deferred_io = drm_fb_helper_deferred_io; | ^~ drivers/gpu/drm/drm_fbdev_dma.c:221:21: error: 'struct fb_info' has no member named 'fbdefio' 221 | info->fbdefio = &fb_helper->fbdefio; | ^~ drivers/gpu/drm/drm_fbdev_dma.c:221:43: error: 'struct drm_fb_helper' has no member named 'fbdefio' 221 | info->fbdefio = &fb_helper->fbdefio; | ^~ Signed-off-by: Thomas Zimmermann Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202410050241.Mox9QRjP-lkp@intel.com/ Fixes: 808a40b69468 ("drm/fbdev-dma: Implement damage handling and deferred I/O") Cc: Thomas Zimmermann Cc: Javier Martinez Canillas Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: # v6.11+ Reviewed-by: Jonathan Cavitt Link: https://patchwork.freedesktop.org/patch/msgid/20241014085740.582287-4-tzimmermann@suse.de Signed-off-by: Greg Kroah-Hartman

drm/panic: Select ZLIB_DEFLATE for DRM_PANIC_SCREEN_QR_CODE

2024-12-05T13:01:45+00:00

[ Upstream commit 2ad84af4cff9121827d3dd35e293478bdb0b58bb ] Under `CONFIG_DRM_PANIC_SCREEN_QR_CODE=y`, zlib is used: ld.lld: error: undefined symbol: zlib_deflate_workspacesize >>> referenced by drm_panic.c >>> drivers/gpu/drm/drm_panic.o:(drm_panic_qr_init) in archive vmlinux.a Thus select `CONFIG_ZLIB_DEFLATE`. Fixes: cb5164ac43d0 ("drm/panic: Add a QR code panic screen") Signed-off-by: Miguel Ojeda Reviewed-by: Jocelyn Falempe Signed-off-by: Jocelyn Falempe Link: https://patchwork.freedesktop.org/patch/msgid/20241003230734.653717-1-ojeda@kernel.org Signed-off-by: Sasha Levin

drm/panic: Add a QR code panic screen

2024-08-23T14:55:35+00:00

This patch adds a new panic screen, with a QR code and the kmsg data embedded. If DRM_PANIC_SCREEN_QR_CODE_URL is set, then the kmsg data will be compressed with zlib and encoded as a numerical segment, and appended to the URL as a URL parameter. This allows to save space, and put about ~7500 bytes of kmsg data, in a V40 QR code. Linux distributions can customize the URL, and put a web frontend to directly open a bug report with the kmsg data. Otherwise the kmsg data will be encoded as a binary segment (ie raw ascii) and only a maximum of 2953 bytes of kmsg data will be available 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

Merge tag 'drm-misc-next-2024-08-01' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

2024-08-08T16:58:46+00:00

drm-misc-next for v6.12: UAPI Changes: virtio: - Define DRM capset Cross-subsystem Changes: dma-buf: - heaps: Clean up documentation printk: - Pass description to kmsg_dump() Core Changes: CI: - Update IGT tests - Point upstream repo to GitLab instance modesetting: - Introduce Power Saving Policy property for connectors - Add might_fault() to drm_modeset_lock priming - Add dynamic per-crtc vblank configuration support panic: - Avoid build-time interference with framebuffer console docs: - Document Colorspace property scheduler: - Remove full_recover from drm_sched_start TTM: - Make LRU walk restartable after dropping locks - Allow direct reclaim to allocate local memory Driver Changes: amdgpu: - Support Power Saving Policy connector property ast: - astdp: Support AST2600 with VGA; Clean up HPD bridge: - Silence error message on -EPROBE_DEFER - analogix: Clean aup - bridge-connector: Fix double free - lt6505: Disable interrupt when powered off - tc358767: Make default DP port preemphasis configurable gma500: - Update i2c terminology ivpu: - Add MODULE_FIRMWARE() lcdif: - Fix pixel clock loongson: - Use GEM refcount over TTM's mgag200: - Improve BMC handling - Support VBLANK intterupts nouveau: - Refactor and clean up internals - Use GEM refcount over TTM's panel: - Shutdown fixes plus documentation - Refactor several drivers for better code sharing - boe-th101mb31ig002: Support for starry-er88577 MIPI-DSI panel plus DT; Fix porch parameter - edp: Support AOU B116XTN02.3, AUO B116XAN06.1, AOU B116XAT04.1, BOE NV140WUM-N41, BOE NV133WUM-N63, BOE NV116WHM-A4D, CMN N116BCA-EA2, CMN N116BCP-EA2, CSW MNB601LS1-4 - himax-hx8394: Support Microchip AC40T08A MIPI Display panel plus DT - ilitek-ili9806e: Support Densitron DMT028VGHMCMI-1D TFT plus DT - jd9365da: Support Melfas lmfbx101117480 MIPI-DSI panel plus DT; Refactor for code sharing sti: - Fix module owner stm: - Avoid UAF wih managed plane and CRTC helpers - Fix module owner - Fix error handling in probe - Depend on COMMON_CLK - ltdc: Fix transparency after disabling plane; Remove unused interrupt tegra: - Call drm_atomic_helper_shutdown() v3d: - Clean up perfmon vkms: - Clean up Signed-off-by: Daniel Vetter From: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20240801121406.GA102996@linux.fritz.box

Merge drm/drm-fixes into drm-misc-fixes

2024-07-30T07:09:23+00:00

Let's start the new drm-misc-fixes cycle by bringing in 6.11-rc1. Signed-off-by: Maxime Ripard

Merge drm/drm-next into drm-misc-next

2024-07-29T07:35:54+00:00

Backmerging to get a late RC of v6.10 before moving into v6.11. Signed-off-by: Thomas Zimmermann