Manpages - radeon.4

radeon - ATI/AMD RADEON video driver

  Section Device
   Identifier devname
   Driver radeon
    ...
  EndSection

radeon is an Xorg driver for ATI/AMD RADEON-based video cards with the following features:

·

Full support for 8-, 15-, 16- and 24-bit pixel depths, and for 30-bit depth on Linux 3.16 and later;

·

RandR 1.2 and RandR 1.3 support;

·

Full EXA 2D acceleration;

·

Textured XVideo acceleration including anti-tearing support (Bicubic filtering only available on R/RV3xx, R/RV/RS4xx, R/RV5xx, and RS6xx/RS740);

·

3D acceleration;

The radeon driver supports PCI, AGP, and PCIe video cards based on the following ATI/AMD chips (note: list is non-exhaustive):

R100

Radeon 7200

RV100

Radeon 7000(VE), M6, RN50/ES1000

RS100

Radeon IGP320(M)

RV200

Radeon 7500, M7, FireGL 7800

RS200

Radeon IGP330(M)/IGP340(M)

RS250

Radeon Mobility 7000 IGP

R200

Radeon 8500, 9100, FireGL 8800/8700

RV250

Radeon 9000PRO/9000, M9

RV280

Radeon 9200PRO/9200/9200SE/9250, M9+

RS300

Radeon 9100 IGP

RS350

Radeon 9200 IGP

RS400/RS480

Radeon XPRESS 200(M)/1100 IGP

R300

Radeon 9700PRO/9700/9500PRO/9500/9600TX, FireGL X1/Z1

R350

Radeon 9800PRO/9800SE/9800, FireGL X2

R360

Radeon 9800XT

RV350

Radeon 9600PRO/9600SE/9600/9550, M10/M11, FireGL T2

RV360

Radeon 9600XT

RV370

Radeon X300, M22

RV380

Radeon X600, M24

RV410

Radeon X700, M26 PCIe

R420

Radeon X800 AGP

R423/R430

Radeon X800, M28 PCIe

R480/R481

Radeon X850 PCIe/AGP

RV505/RV515/RV516/RV550

Radeon X1300/X1400/X1500/X1550/X2300

R520

Radeon X1800

RV530/RV560

Radeon X1600/X1650/X1700

RV570/R580

Radeon X1900/X1950

RS600/RS690/RS740

Radeon X1200/X1250/X2100

R600

Radeon HD 2900

RV610/RV630

Radeon HD 2400/2600/2700/4200/4225/4250

RV620/RV635

Radeon HD 3410/3430/3450/3470/3650/3670

RV670

Radeon HD 3690/3850/3870

RS780/RS880

Radeon HD 3100/3200/3300/4100/4200/4250/4290

RV710/RV730

Radeon HD 4330/4350/4550/4650/4670/5145/5165/530v/545v/560v/565v

RV740/RV770/RV790

Radeon HD 4770/4730/4830/4850/4860/4870/4890

CEDAR

Radeon HD 5430/5450/6330/6350/6370

REDWOOD

Radeon HD 5550/5570/5650/5670/5730/5750/5770/6530/6550/6570

JUNIPER

Radeon HD 5750/5770/5830/5850/5870/6750/6770/6830/6850/6870

CYPRESS

Radeon HD 5830/5850/5870

HEMLOCK

Radeon HD 5970

PALM

Radeon HD 6310/6250

SUMO/SUMO2

Radeon HD 6370/6380/6410/6480/6520/6530/6550/6620

BARTS

Radeon HD 6790/6850/6870/6950/6970/6990

TURKS

Radeon HD 6570/6630/6650/6670/6730/6750/6770

CAICOS

Radeon HD 6430/6450/6470/6490

CAYMAN

Radeon HD 6950/6970/6990

ARUBA

Radeon HD 7000 series

TAHITI

Radeon HD 7900 series

PITCAIRN

Radeon HD 7800 series

VERDE

Radeon HD 7700 series

OLAND

Radeon HD 8000 series

HAINAN

Radeon HD 8000 series

BONAIRE

Radeon HD 7790 series

KAVERI

KAVERI APUs

KABINI

KABINI APUs

HAWAII

Radeon R9 series

MULLINS

MULLINS APUs

Please refer to xorg.conf(5) for general configuration details. This section only covers configuration details specific to this driver.

The following driver Options are supported:

Option SWcursor boolean

Selects software cursor. The default is off.

Option Accel boolean

Enables or disables all hardware acceleration.
The default is on.

Option ZaphodHeads string

Specify the RandR output(s) to use with zaphod mode for a particular driver instance. If you use this option you must use this option for all instances of the driver.
For example: Option ZaphodHeads LVDS,VGA-0 will assign xrandr outputs LVDS and VGA-0 to this instance of the driver.

Option ColorTiling boolean

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. On R600+ this enables 1D tiling mode.
The default value is on for R/RV3XX, R/RV4XX, R/RV5XX, RS6XX, RS740, R/RV6XX, R/RV7XX, RS780, RS880, EVERGREEN, CAYMAN, ARUBA, Southern Islands, and Sea Islands and off for R/RV/RS1XX, R/RV/RS2XX, RS3XX, and RS690/RS780/RS880 when fast fb feature is enabled.

Option ColorTiling2D boolean

The framebuffer can be addressed either in linear, 1D, or 2D tiled modes. 2D tiled mode can provide significant performance benefits over 1D tiling 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 ColorTiling2D is only supported on R600 and newer chips and requires Mesa 9.0 or newer for R6xx-ARUBA, Mesa 9.2 or newer for Southern Islands, and Mesa 10.1 or newer for Sea Islands.
The default value is on for R/RV6XX, R/RV7XX, RS780, RS880, EVERGREEN, CAYMAN, ARUBA, Southern Islands, and Sea Islands.

Option DRI integer

Define the maximum level of DRI to enable. Valid values are 2 for DRI2 or 3 for DRI3. The default is 3 for DRI3 if the Xorg version is >= 1.18.3 and glamor is enabled, otherwise 2 for DRI2. Note: DRI3 may not work correctly in all cases with EXA, enable at your own risk.

Option EnablePageFlip boolean

Enable DRI2 page flipping. The default is on. Pageflipping is supported on all radeon hardware.

Option TearFree boolean

Set the default value of the per-output ’TearFree’ property, which controls tearing prevention using the hardware page flipping mechanism. TearFree is on for any CRTC associated with one or more outputs with TearFree on. Two separate scanout buffers need to be allocated for each CRTC with TearFree on. If this option is set, the default value of the property is ’on’ or ’off’ accordingly. If this option isn’t set, the default value of the property is auto, which means that TearFree is on for rotated outputs, outputs with RandR transforms applied and for RandR 1.4 secondary outputs, otherwise off.

Option AccelMethod string

Chooses between available acceleration architectures. Valid values are EXA (for pre-TAHITI GPUs) and glamor (for R300 or higher). The default is glamor with R600 or newer (with Xorg >= 1.18.3, otherwise with TAHITI or newer), otherwise EXA.

The following driver Options are supported for glamor :

Option ShadowPrimary boolean

This option enables a so-called “shadow primary” buffer for fast CPU access to pixel data, and separate scanout buffers for each display controller (CRTC). This may improve performance for some 2D workloads, potentially at the expense of other (e.g. 3D, video) workloads. Note in particular that enabling this option currently disables page flipping. The default is off.

The following driver Options are supported for EXA :

Option EXAVSync boolean

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 off.

Option EXAPixmaps boolean

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 on with > 32MB VRAM, off with < 32MB or when fast fb feature is enabled for RS690/RS780/RS880.

Option SwapbuffersWait boolean

This option controls the behavior of glXSwapBuffers and glXCopySubBufferMESA calls by GL applications. If enabled, the calls will avoid tearing by making sure the display scanline is outside of the area to be copied before the copy occurs. If disabled, no scanline synchronization is performed, meaning tearing will likely occur. Note that when enabled, this option can adversely affect the framerate of applications that render frames at less than refresh rate.

The default value is on.

The driver supports the following X11 Xv attributes for Textured Video. You can use the “xvattr” tool to query/set those attributes at runtime.

XV_VSYNC

XV_VSYNC is used to control whether textured adapter synchronizes the screen update to the monitor vertical refresh to eliminate tearing. It has two values: ’off’(0) and ’on’(1). The default is ’on’(1).

XV_CRTC

XV_CRTC is used to control which display controller (crtc) the textured adapter synchronizes the screen update with when XV_VSYNC is enabled. The default, ’auto’(-1), will sync to the display controller that more of the video is on; when this is ambiguous, the display controller associated with the RandR primary output is preferred. This attribute is useful for things like clone mode where the user can best decide which display should be synced. The default is ’auto’(-1).

XV_BICUBIC

XV_BICUBIC is used to control whether textured adapter should apply a bicubic filter to smooth the output. It has three values: ’off’(0), ’on’(1) and ’auto’(2). ’off’ means never apply the filter, ’on’ means always apply the filter and ’auto’ means apply the filter only if the X and Y sizes are scaled to more than double to avoid blurred output. Bicubic filtering is not currently compatible with other Xv attributes like hue, contrast, and brightness, and must be disabled to use those attributes. The default is ’off’(0).

Xorg(1), xorg.conf(5), Xserver(1), X(7)

1.

Wiki page:

https://www.x.org/wiki/radeon

2.

Overview about radeon development code:

https://cgit.freedesktop.org/xorg/driver/xf86-video-ati/

3.

Mailing list:

https://lists.freedesktop.org/mailman/listinfo/amd-gfx

4.

IRC channel:

#radeon on irc.freenode.net

5.

Query the bugtracker for radeon bugs:

https://bugs.freedesktop.org/query.cgi?product=xorg&component=Driver/Radeon

6.

Submit bugs & patches:

https://bugs.freedesktop.org/enter_bug.cgi?product=xorg&component=Driver/Radeon

  Authors include:
  Rickard E. (Rik) Faith   faith@precisioninsight.com
  Kevin E. Martin          kem@freedesktop.org
  Alan Hourihane           alanh@fairlite.demon.co.uk
  Marc Aurele La France    tsi@xfree86.org
  Benjamin Herrenschmidt   benh@kernel.crashing.org
  Michel Dänzer            michel@daenzer.net
  Alex Deucher             alexdeucher@gmail.com
  Bogdan D.                bogdand@users.sourceforge.net
  Eric Anholt              eric@anholt.net