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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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6915190a50
Move the sysrq functionality from DRM fbdev helpers to the DRM device and in-kernel clients, so that it becomes available on all clients. DRM fbdev helpers support emergency restoration of the console output via a special key combination. Press SysRq+v to replace the current compositor with the kernel's output on the framebuffer console. This allows users to see the log messages during system emergencies. By moving the functionality from fbdev helpers to the DRM device, any in-kernel client can serve as emergency output. This can be used to bring up drm_log, for example. Each DRM device registers itself to the list of possible sysrq handlers. On receiving SysRq+v, the DRM core goes over all registered devices and restores an in-kernel DRM client for each of them. See Documentation/admin-guide/sysrq.rst on how to invoke SysRq. Switch VTs to bring back the user-space compositor. v2: - declare placeholders as 'static inline' (kernel test robot) - fix grammar in commit description Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patch.msgid.link/20251110154616.539328-3-tzimmermann@suse.de
255 lines
7.4 KiB
Makefile
255 lines
7.4 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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# Makefile for the drm device driver. This driver provides support for the
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# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
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CFLAGS-$(CONFIG_DRM_USE_DYNAMIC_DEBUG) += -DDYNAMIC_DEBUG_MODULE
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# Unconditionally enable W=1 warnings locally
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# --- begin copy-paste W=1 warnings from scripts/Makefile.extrawarn
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subdir-ccflags-y += -Wextra -Wunused -Wno-unused-parameter
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subdir-ccflags-y += $(call cc-option, -Wrestrict)
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subdir-ccflags-y += -Wmissing-format-attribute
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subdir-ccflags-y += -Wold-style-definition
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subdir-ccflags-y += -Wmissing-include-dirs
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subdir-ccflags-y += $(call cc-option, -Wunused-but-set-variable)
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subdir-ccflags-y += $(call cc-option, -Wunused-const-variable)
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subdir-ccflags-y += $(call cc-option, -Wpacked-not-aligned)
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subdir-ccflags-y += $(call cc-option, -Wformat-overflow)
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# FIXME: fix -Wformat-truncation warnings and uncomment
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#subdir-ccflags-y += $(call cc-option, -Wformat-truncation)
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subdir-ccflags-y += $(call cc-option, -Wstringop-truncation)
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# The following turn off the warnings enabled by -Wextra
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ifeq ($(findstring 2, $(KBUILD_EXTRA_WARN)),)
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subdir-ccflags-y += -Wno-missing-field-initializers
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subdir-ccflags-y += -Wno-type-limits
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subdir-ccflags-y += -Wno-shift-negative-value
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endif
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ifeq ($(findstring 3, $(KBUILD_EXTRA_WARN)),)
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subdir-ccflags-y += -Wno-sign-compare
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endif
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# --- end copy-paste
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# Enable -Werror in CI and development
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subdir-ccflags-$(CONFIG_DRM_WERROR) += -Werror
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drm-y := \
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drm_atomic.o \
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drm_atomic_uapi.o \
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drm_auth.o \
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drm_blend.o \
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drm_bridge.o \
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drm_cache.o \
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drm_color_mgmt.o \
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drm_connector.o \
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drm_crtc.o \
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drm_displayid.o \
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drm_drv.o \
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drm_dumb_buffers.o \
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drm_edid.o \
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drm_eld.o \
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drm_encoder.o \
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drm_file.o \
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drm_fourcc.o \
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drm_framebuffer.o \
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drm_gem.o \
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drm_ioctl.o \
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drm_lease.o \
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drm_managed.o \
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drm_mm.o \
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drm_mode_config.o \
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drm_mode_object.o \
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drm_modes.o \
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drm_modeset_lock.o \
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drm_plane.o \
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drm_prime.o \
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drm_print.o \
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drm_property.o \
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drm_rect.o \
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drm_syncobj.o \
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drm_sysfs.o \
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drm_trace_points.o \
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drm_vblank.o \
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drm_vblank_work.o \
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drm_vma_manager.o \
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drm_writeback.o
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drm-$(CONFIG_DRM_CLIENT) += \
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drm_client.o \
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drm_client_event.o \
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drm_client_modeset.o \
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drm_client_sysrq.o
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drm-$(CONFIG_DRM_LIB_RANDOM) += lib/drm_random.o
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drm-$(CONFIG_COMPAT) += drm_ioc32.o
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drm-$(CONFIG_DRM_PANEL) += drm_panel.o
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drm-$(CONFIG_OF) += drm_of.o
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drm-$(CONFIG_PCI) += drm_pci.o
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drm-$(CONFIG_DEBUG_FS) += \
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drm_debugfs.o \
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drm_debugfs_crc.o
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drm-$(CONFIG_DRM_LOAD_EDID_FIRMWARE) += drm_edid_load.o
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drm-$(CONFIG_DRM_PRIVACY_SCREEN) += \
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drm_privacy_screen.o \
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drm_privacy_screen_x86.o
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drm-$(CONFIG_DRM_ACCEL) += ../../accel/drm_accel.o
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drm-$(CONFIG_DRM_PANIC) += drm_panic.o
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drm-$(CONFIG_DRM_DRAW) += drm_draw.o
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drm-$(CONFIG_DRM_PANIC_SCREEN_QR_CODE) += drm_panic_qr.o
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obj-$(CONFIG_DRM) += drm.o
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obj-$(CONFIG_DRM_PANEL_ORIENTATION_QUIRKS) += drm_panel_orientation_quirks.o
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obj-$(CONFIG_DRM_PANEL_BACKLIGHT_QUIRKS) += drm_panel_backlight_quirks.o
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#
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# Memory-management helpers
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#
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#
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obj-$(CONFIG_DRM_EXEC) += drm_exec.o
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obj-$(CONFIG_DRM_GPUVM) += drm_gpuvm.o
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drm_gpusvm_helper-y := \
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drm_gpusvm.o\
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drm_pagemap.o
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obj-$(CONFIG_DRM_GPUSVM) += drm_gpusvm_helper.o
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obj-$(CONFIG_DRM_BUDDY) += drm_buddy.o
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drm_dma_helper-y := drm_gem_dma_helper.o
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drm_dma_helper-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fbdev_dma.o
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drm_dma_helper-$(CONFIG_DRM_KMS_HELPER) += drm_fb_dma_helper.o
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obj-$(CONFIG_DRM_GEM_DMA_HELPER) += drm_dma_helper.o
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drm_shmem_helper-y := drm_gem_shmem_helper.o
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drm_shmem_helper-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fbdev_shmem.o
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obj-$(CONFIG_DRM_GEM_SHMEM_HELPER) += drm_shmem_helper.o
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drm_suballoc_helper-y := drm_suballoc.o
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obj-$(CONFIG_DRM_SUBALLOC_HELPER) += drm_suballoc_helper.o
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drm_vram_helper-y := drm_gem_vram_helper.o
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obj-$(CONFIG_DRM_VRAM_HELPER) += drm_vram_helper.o
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drm_ttm_helper-y := drm_gem_ttm_helper.o
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drm_ttm_helper-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fbdev_ttm.o
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obj-$(CONFIG_DRM_TTM_HELPER) += drm_ttm_helper.o
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#
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# Modesetting helpers
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#
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drm_kms_helper-y := \
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drm_atomic_helper.o \
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drm_atomic_state_helper.o \
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drm_bridge_helper.o \
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drm_crtc_helper.o \
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drm_damage_helper.o \
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drm_flip_work.o \
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drm_format_helper.o \
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drm_gem_atomic_helper.o \
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drm_gem_framebuffer_helper.o \
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drm_kms_helper_common.o \
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drm_modeset_helper.o \
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drm_plane_helper.o \
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drm_probe_helper.o \
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drm_self_refresh_helper.o \
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drm_simple_kms_helper.o \
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drm_vblank_helper.o
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drm_kms_helper-$(CONFIG_DRM_PANEL_BRIDGE) += bridge/panel.o
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drm_kms_helper-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fb_helper.o
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obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o
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#
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# Drivers and the rest
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#
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obj-y += tests/
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obj-$(CONFIG_DRM_MIPI_DBI) += drm_mipi_dbi.o
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obj-$(CONFIG_DRM_MIPI_DSI) += drm_mipi_dsi.o
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obj-y += arm/
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obj-y += clients/
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obj-y += display/
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obj-$(CONFIG_DRM_TTM) += ttm/
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obj-$(CONFIG_DRM_SCHED) += scheduler/
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obj-$(CONFIG_DRM_RADEON)+= radeon/
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obj-$(CONFIG_DRM_AMDGPU)+= amd/amdgpu/
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obj-$(CONFIG_DRM_AMDGPU)+= amd/amdxcp/
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obj-$(CONFIG_DRM_I915) += i915/
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obj-$(CONFIG_DRM_XE) += xe/
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obj-$(CONFIG_DRM_KMB_DISPLAY) += kmb/
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obj-$(CONFIG_DRM_MGAG200) += mgag200/
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obj-$(CONFIG_DRM_V3D) += v3d/
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obj-$(CONFIG_DRM_VC4) += vc4/
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obj-$(CONFIG_DRM_VMWGFX)+= vmwgfx/
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obj-$(CONFIG_DRM_VGEM) += vgem/
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obj-$(CONFIG_DRM_VKMS) += vkms/
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obj-$(CONFIG_DRM_NOUVEAU) +=nouveau/
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obj-$(CONFIG_DRM_NOVA) += nova/
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obj-$(CONFIG_DRM_EXYNOS) +=exynos/
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obj-$(CONFIG_DRM_ROCKCHIP) +=rockchip/
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obj-$(CONFIG_DRM_GMA500) += gma500/
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obj-$(CONFIG_DRM_UDL) += udl/
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obj-$(CONFIG_DRM_AST) += ast/
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obj-$(CONFIG_DRM_ARMADA) += armada/
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obj-$(CONFIG_DRM_ATMEL_HLCDC) += atmel-hlcdc/
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obj-y += renesas/
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obj-y += omapdrm/
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obj-$(CONFIG_DRM_SUN4I) += sun4i/
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obj-y += tilcdc/
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obj-$(CONFIG_DRM_QXL) += qxl/
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obj-$(CONFIG_DRM_VIRTIO_GPU) += virtio/
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obj-$(CONFIG_DRM_MSM) += msm/
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obj-$(CONFIG_DRM_TEGRA) += tegra/
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obj-$(CONFIG_DRM_STM) += stm/
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obj-$(CONFIG_DRM_STI) += sti/
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obj-y += imx/
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obj-$(CONFIG_DRM_INGENIC) += ingenic/
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obj-$(CONFIG_DRM_LOGICVC) += logicvc/
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obj-$(CONFIG_DRM_MEDIATEK) += mediatek/
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obj-$(CONFIG_DRM_MESON) += meson/
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obj-y += panel/
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obj-y += bridge/
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obj-$(CONFIG_DRM_FSL_DCU) += fsl-dcu/
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obj-$(CONFIG_DRM_ETNAVIV) += etnaviv/
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obj-y += hisilicon/
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obj-y += mxsfb/
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obj-y += sysfb/
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obj-y += tiny/
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obj-$(CONFIG_DRM_PL111) += pl111/
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obj-$(CONFIG_DRM_TVE200) += tve200/
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obj-$(CONFIG_DRM_ADP) += adp/
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obj-$(CONFIG_DRM_XEN) += xen/
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obj-$(CONFIG_DRM_VBOXVIDEO) += vboxvideo/
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obj-$(CONFIG_DRM_LIMA) += lima/
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obj-$(CONFIG_DRM_PANFROST) += panfrost/
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obj-$(CONFIG_DRM_PANTHOR) += panthor/
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obj-$(CONFIG_DRM_TYR) += tyr/
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obj-$(CONFIG_DRM_ASPEED_GFX) += aspeed/
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obj-$(CONFIG_DRM_MCDE) += mcde/
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obj-$(CONFIG_DRM_TIDSS) += tidss/
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obj-y += xlnx/
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obj-y += gud/
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obj-$(CONFIG_DRM_HYPERV) += hyperv/
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obj-y += sitronix/
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obj-y += solomon/
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obj-$(CONFIG_DRM_SPRD) += sprd/
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obj-$(CONFIG_DRM_LOONGSON) += loongson/
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obj-$(CONFIG_DRM_POWERVR) += imagination/
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# Ensure drm headers are self-contained and pass kernel-doc
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hdrtest-files := \
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$(shell cd $(src) && find . -maxdepth 1 -name 'drm_*.h') \
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$(shell cd $(src) && find display lib -name '*.h')
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always-$(CONFIG_DRM_HEADER_TEST) += \
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$(patsubst %.h,%.hdrtest, $(hdrtest-files))
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# Include the header twice to detect missing include guard.
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quiet_cmd_hdrtest = HDRTEST $(patsubst %.hdrtest,%.h,$@)
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cmd_hdrtest = \
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$(CC) $(c_flags) -fsyntax-only -x c /dev/null -include $< -include $<; \
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PYTHONDONTWRITEBYTECODE=1 $(KERNELDOC) -none $(if $(CONFIG_WERROR)$(CONFIG_DRM_WERROR),-Werror) $<; \
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touch $@
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$(obj)/%.hdrtest: $(src)/%.h FORCE
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$(call if_changed_dep,hdrtest)
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