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authorDave Airlie <airlied@redhat.com>2012-02-29 17:40:04 +0400
committerDave Airlie <airlied@redhat.com>2012-05-17 13:53:37 +0400
commit312fec1405dd546ddb3fa6387d54e78f604dd8f8 (patch)
tree83bbeed68d15aba65a326fff1846472a045ae76e /drivers/gpu/drm/ast/Kconfig
parentdb2e034d2c55e1f273ed820cc3edcdbc73d0292c (diff)
downloadlinux-312fec1405dd546ddb3fa6387d54e78f604dd8f8.tar.xz
drm: Initial KMS driver for AST (ASpeed Technologies) 2000 series (v2)
This is the initial driver for the Aspeed Technologies chips found in servers. This driver supports the AST 2000, 2100, 2200, 2150 and 2300. It doesn't support the AST11xx due to lack of hw to test it on, and them requiring different codepaths. This driver is intended to be used with xf86-video-modesetting in userspace. This driver has a slightly different design than other KMS drivers, but future server chips will probably share similiar setup. As these GPUs commonly have low video RAM, it doesn't make sense to put the kms console in VRAM always. This driver places the kms console into system RAM, and does dirty updates to a copy in video RAM. When userspace sets a new scanout buffer, it forcefully evicts the video RAM console, and X can create a framebuffer that can use all of of video RAM. This driver uses TTM but in a very simple fashion to control the eviction to system RAM of the console, and multiple servers. v2: add s/r support, fix Kconfig. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/ast/Kconfig')
-rw-r--r--drivers/gpu/drm/ast/Kconfig15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ast/Kconfig b/drivers/gpu/drm/ast/Kconfig
new file mode 100644
index 000000000000..e43ff8dc0320
--- /dev/null
+++ b/drivers/gpu/drm/ast/Kconfig
@@ -0,0 +1,15 @@
+config DRM_AST
+ tristate "AST server chips"
+ depends on DRM && PCI && EXPERIMENTAL
+ select DRM_TTM
+ select FB_SYS_COPYAREA
+ select FB_SYS_FILLRECT
+ select FB_SYS_IMAGEBLIT
+ select DRM_KMS_HELPER
+ help
+ Say yes for experimental AST GPU driver. Do not enable
+ this driver without having a working -modesetting,
+ and a version of AST that knows to fail if KMS
+ is bound to the driver. These GPUs are commonly found
+ in server chipsets.
+