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radeon/man: divide driver options into UMS and KMS

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Alex Deucher
2010-11-23 01:46:15 -05:00
parent 4cbb7100df
commit dc470b5382
1 changed files with 53 additions and 27 deletions
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man/radeon.man
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@@ -189,7 +189,7 @@ driver.
.PP
The driver auto\-detects all device information necessary to initialize
the card. However, if you have problems with auto\-detection, you can
specify:
specify for UMS (Userspace Modesetting):
.PP
.RS 4
VideoRam \- in kilobytes
@@ -203,7 +203,7 @@ ChipID \- PCI DEVICE ID
.PP
In addition, the following driver
.B Options
are supported:
are supported for both UMS (Userspace Modesetting) and KMS (Kernel Modesetting):
.TP
.BI "Option \*qSWcursor\*q \*q" boolean \*q
Selects software cursor. The default is
@@ -216,6 +216,57 @@ The default is to
.B enable
hardware acceleration.
.TP
.BI "Option \*qZaphodHeads\*q \*q" string \*q
Specify the RandR output(s) to use with zaphod mode for a particular driver
instance. If you use this option you most use this option for all instances
of the driver.
.br
For example:
.B
Option \*qZaphodHeads\*q \*qLVDS,VGA-0\*q
will assign xrandr outputs LVDS and VGA-0 to this instance of the driver.
.TP
.BI "Option \*qEXAVSync\*q \*q" boolean \*q
This option attempts to avoid tearing by stalling the engine until the display
controller has passed the destination region. It reduces tearing at the cost
of performance and has been known to cause instability on some chips.
The default is
.B off.
.PP
The following driver
.B Options
are supported for
.B KMS
(Kernel Modesetting):
.TP
.BI "Option \*qColorTiling\*q \*q" "boolean" \*q
The framebuffer can be addressed either in linear or tiled mode. Tiled mode can provide
significant performance benefits with 3D applications. Tiling will be disabled if the drm
module is too old or if the current display configuration does not support it. KMS
ColorTiling is not currently supported on R/RV/RS1XX, R/RV/RS2XX, and RS3XX.
.br
The default value is
.B on
for R/RV3XX, R/RV4XX, R/RV5XX, RS6XX, RS740 and
.B off
for R/RV6XX, R/RV7XX, RS780, RS880, and EVERGREEN.
.TP
.BI "Option \*qEXAPixmaps\*q \*q" boolean \*q
Under KMS, to avoid thrashing pixmaps in/out of VRAM on low memory cards,
we use a heuristic based on VRAM amount to determine whether to allow EXA
to use VRAM for non-essential pixmaps. This option allows us to override the
heuristic. The default is
.B on
with > 32MB VRAM, off with < 32MB.
.PP
The following driver
.B Options
are supported for
.B UMS
(Userspace Modesetting):
.TP
.BI "Option \*qDac6Bit\*q \*q" boolean \*q
Enables or disables the use of 6 bits per color component when in 8 bpp
mode (emulates VGA mode). By default, all 8 bits per color component
@@ -607,13 +658,6 @@ False if you are experiencing a hang when initializing a secondary card.
The default is
.B on.
.TP
.BI "Option \*qEXAVSync\*q \*q" boolean \*q
This option attempts to avoid tearing by stalling the engine until the display
controller has passed the destination region. It reduces tearing at the cost
of performance and has been known to cause instability on some chips.
The default is
.B off.
.TP
.BI "Option \*qATOMTvOut\*q \*q" boolean \*q
This option enables experimental TV-out support for R/RV5xx, R/RV6xx, and R/RV7xx
AtomBIOS chips. TV-out is experimental and may not function on these chips as
@@ -625,24 +669,6 @@ The default is
This option enables modesetting on R/RV4xx chips using AtomBIOS.
The default is
.B off.
.TP
.BI "Option \*qEXAPixmaps\*q \*q" boolean \*q
(KMS Only) Under kernel modesetting, to avoid thrashing pixmaps in/out
of VRAM on low memory cards, we use a heuristic based on VRAM amount
to determine whether to allow EXA to use VRAM for non-essential pixmaps.
This option allows us to override the heuristic.
The default is
.B on with > 32MB VRAM, off with < 32MB.
.TP
.BI "Option \*qZaphodHeads\*q \*q" string \*q
Specify the RandR output(s) to use with zaphod mode for a particular driver
instance. If you use this option you most use this option for all instances
of the driver.
.br
For example:
.B
Option \*qZaphodHeads\*q \*qLVDS,VGA-0\*q
will assign xrandr outputs LVDS and VGA-0 to this instance of the driver.
.SH TEXTURED VIDEO ATTRIBUTES
The driver supports the following X11 Xv attributes for Textured Video.