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5f15257689
This patch add a config to support to create multi buffer for cma fbdev.
Such as double buffer and triple buffer.
Cma fbdev is convient to add a legency fbdev. And still many Android
devices use fbdev now and at least double buffer is needed for these
Android devices, so that a buffer flip can be operated. It will need
some time for Android device vendors to abondon legency fbdev. So multi
buffer for fbdev is needed.
Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
[s.christ@phytec.de: Picking patch from
https://lkml.org/lkml/2015/9/14/188]
Signed-off-by: Stefan Christ <s.christ@phytec.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/075ffb50cc16ab055b5d47b30163401bb356ab51.1487175046.git-series.maxime.ripard@free-electrons.com
359 lines
9.3 KiB
Plaintext
359 lines
9.3 KiB
Plaintext
#
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# Drm device configuration
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#
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# 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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#
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menuconfig DRM
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tristate "Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)"
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depends on (AGP || AGP=n) && !EMULATED_CMPXCHG && HAS_DMA
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select HDMI
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select FB_CMDLINE
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select I2C
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select I2C_ALGOBIT
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select DMA_SHARED_BUFFER
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select SYNC_FILE
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help
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Kernel-level support for the Direct Rendering Infrastructure (DRI)
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introduced in XFree86 4.0. If you say Y here, you need to select
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the module that's right for your graphics card from the list below.
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These modules provide support for synchronization, security, and
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DMA transfers. Please see <http://dri.sourceforge.net/> for more
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details. You should also select and configure AGP
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(/dev/agpgart) support if it is available for your platform.
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config DRM_MIPI_DSI
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bool
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depends on DRM
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config DRM_DP_AUX_CHARDEV
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bool "DRM DP AUX Interface"
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depends on DRM
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help
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Choose this option to enable a /dev/drm_dp_auxN node that allows to
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read and write values to arbitrary DPCD registers on the DP aux
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channel.
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config DRM_DEBUG_MM
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bool "Insert extra checks and debug info into the DRM range managers"
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default n
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depends on DRM=y
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depends on STACKTRACE_SUPPORT
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select STACKDEPOT
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help
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Enable allocation tracking of memory manager and leak detection on
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shutdown.
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Recommended for driver developers only.
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If in doubt, say "N".
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config DRM_DEBUG_MM_SELFTEST
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tristate "kselftests for DRM range manager (struct drm_mm)"
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depends on DRM
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depends on DEBUG_KERNEL
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select PRIME_NUMBERS
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select DRM_LIB_RANDOM
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default n
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help
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This option provides a kernel module that can be used to test
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the DRM range manager (drm_mm) and its API. This option is not
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useful for distributions or general kernels, but only for kernel
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developers working on DRM and associated drivers.
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If in doubt, say "N".
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config DRM_KMS_HELPER
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tristate
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depends on DRM
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help
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CRTC helpers for KMS drivers.
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config DRM_KMS_FB_HELPER
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bool
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depends on DRM_KMS_HELPER
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select FB
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select FRAMEBUFFER_CONSOLE if !EXPERT
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select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE
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select FB_SYS_FOPS
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select FB_SYS_FILLRECT
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select FB_SYS_COPYAREA
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select FB_SYS_IMAGEBLIT
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select FB_CFB_FILLRECT
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select FB_CFB_COPYAREA
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select FB_CFB_IMAGEBLIT
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select FB_DEFERRED_IO
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help
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FBDEV helpers for KMS drivers.
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config DRM_FBDEV_EMULATION
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bool "Enable legacy fbdev support for your modesetting driver"
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depends on DRM
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select DRM_KMS_HELPER
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select DRM_KMS_FB_HELPER
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default y
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help
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Choose this option if you have a need for the legacy fbdev
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support. Note that this support also provides the linux console
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support on top of your modesetting driver.
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If in doubt, say "Y".
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config DRM_FBDEV_OVERALLOC
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int "Overallocation of the fbdev buffer"
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depends on DRM_FBDEV_EMULATION
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default 100
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help
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Defines the fbdev buffer overallocation in percent. Default
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is 100. Typical values for double buffering will be 200,
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triple buffering 300.
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config DRM_LOAD_EDID_FIRMWARE
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bool "Allow to specify an EDID data set instead of probing for it"
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depends on DRM_KMS_HELPER
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help
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Say Y here, if you want to use EDID data to be loaded from the
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/lib/firmware directory or one of the provided built-in
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data sets. This may be necessary, if the graphics adapter or
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monitor are unable to provide appropriate EDID data. Since this
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feature is provided as a workaround for broken hardware, the
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default case is N. Details and instructions how to build your own
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EDID data are given in Documentation/EDID/HOWTO.txt.
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config DRM_TTM
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tristate
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depends on DRM && MMU
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help
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GPU memory management subsystem for devices with multiple
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GPU memory types. Will be enabled automatically if a device driver
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uses it.
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config DRM_GEM_CMA_HELPER
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bool
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depends on DRM
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help
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Choose this if you need the GEM CMA helper functions
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config DRM_KMS_CMA_HELPER
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bool
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depends on DRM
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select DRM_GEM_CMA_HELPER
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select DRM_KMS_FB_HELPER
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select FB_SYS_FILLRECT
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select FB_SYS_COPYAREA
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select FB_SYS_IMAGEBLIT
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help
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Choose this if you need the KMS CMA helper functions
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config DRM_VM
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bool
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depends on DRM && MMU
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source "drivers/gpu/drm/i2c/Kconfig"
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source "drivers/gpu/drm/arm/Kconfig"
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config DRM_RADEON
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tristate "ATI Radeon"
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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 POWER_SUPPLY
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select HWMON
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select BACKLIGHT_CLASS_DEVICE
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select BACKLIGHT_LCD_SUPPORT
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select INTERVAL_TREE
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help
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Choose this option if you have an ATI Radeon graphics card. There
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are both PCI and AGP versions. You don't need to choose this to
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run the Radeon in plain VGA mode.
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If M is selected, the module will be called radeon.
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source "drivers/gpu/drm/radeon/Kconfig"
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config DRM_AMDGPU
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tristate "AMD GPU"
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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 POWER_SUPPLY
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select HWMON
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select BACKLIGHT_CLASS_DEVICE
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select BACKLIGHT_LCD_SUPPORT
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select INTERVAL_TREE
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help
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Choose this option if you have a recent AMD Radeon graphics card.
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If M is selected, the module will be called amdgpu.
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source "drivers/gpu/drm/amd/amdgpu/Kconfig"
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source "drivers/gpu/drm/nouveau/Kconfig"
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source "drivers/gpu/drm/i915/Kconfig"
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config DRM_VGEM
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tristate "Virtual GEM provider"
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depends on DRM
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help
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Choose this option to get a virtual graphics memory manager,
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as used by Mesa's software renderer for enhanced performance.
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If M is selected the module will be called vgem.
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source "drivers/gpu/drm/exynos/Kconfig"
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source "drivers/gpu/drm/rockchip/Kconfig"
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source "drivers/gpu/drm/vmwgfx/Kconfig"
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source "drivers/gpu/drm/gma500/Kconfig"
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source "drivers/gpu/drm/udl/Kconfig"
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source "drivers/gpu/drm/ast/Kconfig"
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source "drivers/gpu/drm/mgag200/Kconfig"
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source "drivers/gpu/drm/cirrus/Kconfig"
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source "drivers/gpu/drm/armada/Kconfig"
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source "drivers/gpu/drm/atmel-hlcdc/Kconfig"
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source "drivers/gpu/drm/rcar-du/Kconfig"
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source "drivers/gpu/drm/shmobile/Kconfig"
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source "drivers/gpu/drm/sun4i/Kconfig"
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source "drivers/gpu/drm/omapdrm/Kconfig"
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source "drivers/gpu/drm/tilcdc/Kconfig"
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source "drivers/gpu/drm/qxl/Kconfig"
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source "drivers/gpu/drm/bochs/Kconfig"
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source "drivers/gpu/drm/virtio/Kconfig"
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source "drivers/gpu/drm/msm/Kconfig"
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source "drivers/gpu/drm/fsl-dcu/Kconfig"
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source "drivers/gpu/drm/tegra/Kconfig"
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source "drivers/gpu/drm/panel/Kconfig"
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source "drivers/gpu/drm/bridge/Kconfig"
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source "drivers/gpu/drm/sti/Kconfig"
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source "drivers/gpu/drm/amd/amdkfd/Kconfig"
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source "drivers/gpu/drm/imx/Kconfig"
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source "drivers/gpu/drm/vc4/Kconfig"
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source "drivers/gpu/drm/etnaviv/Kconfig"
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source "drivers/gpu/drm/arc/Kconfig"
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source "drivers/gpu/drm/hisilicon/Kconfig"
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source "drivers/gpu/drm/mediatek/Kconfig"
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source "drivers/gpu/drm/zte/Kconfig"
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source "drivers/gpu/drm/mxsfb/Kconfig"
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source "drivers/gpu/drm/meson/Kconfig"
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source "drivers/gpu/drm/tinydrm/Kconfig"
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# Keep legacy drivers last
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menuconfig DRM_LEGACY
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bool "Enable legacy drivers (DANGEROUS)"
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depends on DRM && MMU
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select DRM_VM
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help
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Enable legacy DRI1 drivers. Those drivers expose unsafe and dangerous
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APIs to user-space, which can be used to circumvent access
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restrictions and other security measures. For backwards compatibility
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those drivers are still available, but their use is highly
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inadvisable and might harm your system.
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You are recommended to use the safe modeset-only drivers instead, and
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perform 3D emulation in user-space.
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Unless you have strong reasons to go rogue, say "N".
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if DRM_LEGACY
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config DRM_TDFX
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tristate "3dfx Banshee/Voodoo3+"
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depends on DRM && PCI
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help
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Choose this option if you have a 3dfx Banshee or Voodoo3 (or later),
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graphics card. If M is selected, the module will be called tdfx.
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config DRM_R128
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tristate "ATI Rage 128"
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depends on DRM && PCI
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select FW_LOADER
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help
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Choose this option if you have an ATI Rage 128 graphics card. If M
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is selected, the module will be called r128. AGP support for
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this card is strongly suggested (unless you have a PCI version).
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config DRM_I810
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tristate "Intel I810"
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# !PREEMPT because of missing ioctl locking
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depends on DRM && AGP && AGP_INTEL && (!PREEMPT || BROKEN)
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help
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Choose this option if you have an Intel I810 graphics card. If M is
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selected, the module will be called i810. AGP support is required
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for this driver to work.
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config DRM_MGA
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tristate "Matrox g200/g400"
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depends on DRM && PCI
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select FW_LOADER
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help
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Choose this option if you have a Matrox G200, G400 or G450 graphics
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card. If M is selected, the module will be called mga. AGP
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support is required for this driver to work.
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config DRM_SIS
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tristate "SiS video cards"
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depends on DRM && AGP
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depends on FB_SIS || FB_SIS=n
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help
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Choose this option if you have a SiS 630 or compatible video
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chipset. If M is selected the module will be called sis. AGP
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support is required for this driver to work.
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config DRM_VIA
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tristate "Via unichrome video cards"
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depends on DRM && PCI
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help
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Choose this option if you have a Via unichrome or compatible video
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chipset. If M is selected the module will be called via.
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config DRM_SAVAGE
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tristate "Savage video cards"
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depends on DRM && PCI
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help
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Choose this option if you have a Savage3D/4/SuperSavage/Pro/Twister
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chipset. If M is selected the module will be called savage.
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endif # DRM_LEGACY
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config DRM_LIB_RANDOM
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bool
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default n
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