forked from Minki/linux
b30a43ac71
There was a nouveau DDX that relied on legacy context ioctls to work, but we fixed it years ago, give distros that have a modern DDX the option to break the uAPI and close the mess of holes that legacy context support is. Full context of the story: commit0e975980d4Author: Peter Antoine <peter.antoine@intel.com> Date: Tue Jun 23 08:18:49 2015 +0100 drm: Turn off Legacy Context Functions The context functions are not used by the i915 driver and should not be used by modeset drivers. These driver functions contain several bugs and security holes. This change makes these functions optional can be turned on by a setting, they are turned off by default for modeset driver with the exception of the nouvea driver that may require them with an old version of libdrm. The previous attempt was commit7c510133d9Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Thu Aug 8 15:41:21 2013 +0200 drm: mark context support as a legacy subsystem but this had to be reverted commitc21eb21cb5Author: Dave Airlie <airlied@redhat.com> Date: Fri Sep 20 08:32:59 2013 +1000 Revert "drm: mark context support as a legacy subsystem" v2: remove returns from void function, and formatting (Daniel Vetter) v3: - s/Nova/nouveau/ in the commit message, and add references to the previous attempts - drop the part touching the drm hw lock, that should be a separate patch. Signed-off-by: Peter Antoine <peter.antoine@intel.com> (v2) Cc: Peter Antoine <peter.antoine@intel.com> (v2) Reviewed-by: Peter Antoine <peter.antoine@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> v2: move DRM_VM dependency into legacy config. v3: fix missing dep (kbuild robot) Cc: stable@vger.kernel.org Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
97 lines
2.6 KiB
Plaintext
97 lines
2.6 KiB
Plaintext
config DRM_NOUVEAU
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tristate "Nouveau (NVIDIA) cards"
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depends on DRM && PCI && MMU
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select FW_LOADER
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select DRM_KMS_HELPER
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select DRM_TTM
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select BACKLIGHT_CLASS_DEVICE if DRM_NOUVEAU_BACKLIGHT
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select BACKLIGHT_LCD_SUPPORT if DRM_NOUVEAU_BACKLIGHT
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select ACPI_VIDEO if ACPI && X86 && BACKLIGHT_CLASS_DEVICE && INPUT
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select X86_PLATFORM_DEVICES if ACPI && X86
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select ACPI_WMI if ACPI && X86
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select MXM_WMI if ACPI && X86
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select POWER_SUPPLY
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# Similar to i915, we need to select ACPI_VIDEO and it's dependencies
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select BACKLIGHT_LCD_SUPPORT if ACPI && X86
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select BACKLIGHT_CLASS_DEVICE if ACPI && X86
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select INPUT if ACPI && X86
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select THERMAL if ACPI && X86
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select ACPI_VIDEO if ACPI && X86
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help
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Choose this option for open-source NVIDIA support.
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config NOUVEAU_LEGACY_CTX_SUPPORT
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bool "Nouveau legacy context support"
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depends on DRM_NOUVEAU
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select DRM_VM
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default y
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help
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There was a version of the nouveau DDX that relied on legacy
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ctx ioctls not erroring out. But that was back in time a long
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ways, so offer a way to disable it now. For uapi compat with
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old nouveau ddx this should be on by default, but modern distros
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should consider turning it off.
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config NOUVEAU_PLATFORM_DRIVER
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bool "Nouveau (NVIDIA) SoC GPUs"
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depends on DRM_NOUVEAU && ARCH_TEGRA
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default y
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help
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Support for Nouveau platform driver, used for SoC GPUs as found
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on NVIDIA Tegra K1.
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config NOUVEAU_DEBUG
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int "Maximum debug level"
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depends on DRM_NOUVEAU
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range 0 7
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default 5
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help
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Selects the maximum debug level to compile support for.
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0 - fatal
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1 - error
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2 - warning
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3 - info
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4 - debug
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5 - trace (recommended)
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6 - paranoia
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7 - spam
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The paranoia and spam levels will add a lot of extra checks which
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may potentially slow down driver operation.
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config NOUVEAU_DEBUG_DEFAULT
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int "Default debug level"
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depends on DRM_NOUVEAU
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range 0 7
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default 3
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help
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Selects the default debug level
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config NOUVEAU_DEBUG_MMU
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bool "Enable additional MMU debugging"
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depends on DRM_NOUVEAU
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default n
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help
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Say Y here if you want to enable verbose MMU debug output.
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config DRM_NOUVEAU_BACKLIGHT
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bool "Support for backlight control"
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depends on DRM_NOUVEAU
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default y
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help
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Say Y here if you want to control the backlight of your display
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(e.g. a laptop panel).
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config DRM_NOUVEAU_SVM
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bool "(EXPERIMENTAL) Enable SVM (Shared Virtual Memory) support"
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depends on ARCH_HAS_HMM
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depends on DRM_NOUVEAU
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depends on STAGING
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select HMM_MIRROR
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select DEVICE_PRIVATE
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default n
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help
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Say Y here if you want to enable experimental support for
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Shared Virtual Memory (SVM).
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