Radeon r6/7xx support merged to -STABLE

[Kostik Belousov]

On Sun, Mar 15, 2009 at 01:49:12PM -0500, Robert Noland wrote:
> I went ahead and merged the Radeon R6/7xx code to -STABLE a while ago.
> 
> The current xorg drivers will not enable it by default on R600+ chips.
> You will need to be using xf86-video-ati-6.12.0,
> xf86-video-radeonhd-devel or possibly even better git master of either.
> 
> You will need to add the following to the Device section of your
> xorg.conf to enable it.  If you are experiencing issues, commenting
> these two options out, will prevent Xorg from auto-loading the kernel
> module.
> 
> Options "DRI"
> Options "AccelMethod" "EXA"

With this code and ati 6.12.0, I get the awful performance.
Kernel says
drm0: <ATI Radeon HD 2600 XT> on vgapci0
vgapci0: Reserved 0x10000 bytes for rid 0x18 type 3 at 0xd0020000
vgapci0: child drm0 requested pci_enable_busmaster
info: [drm] Initialized radeon 1.29.0 20080528
vgapci0: Reserved 0x10000000 bytes for rid 0x10 type 3 at 0xc0000000
info: [drm] Setting GART location based on new memory map
error: [drm:pid1494:r600_do_init_cp] *ERROR* Need gart offset from userspace

Then, the Xorg.0.log
...
(II) RADEON(0): [drm] register handle = 0xd0020000
(II) RADEON(0): [dri] Visual configs initialized
(II) RADEON(0): RADEONRestoreMemMapRegisters() :
(II) RADEON(0):   MC_FB_LOCATION   : 0x00df00c0 0x00df00c0
(II) RADEON(0):   MC_AGP_LOCATION  : 0x003f0000
(==) RADEON(0): Backing store disabled
(II) RADEON(0): [DRI] installation complete
(II) RADEON(0): [drm] removed 1 reserved context for kernel
(II) RADEON(0): [drm] unmapping 8192 bytes of SAREA 0xc731d000 at 0x286fd000
(II) RADEON(0): [drm] Closed DRM master.
(WW) RADEON(0): Direct rendering disabled
(EE) RADEON(0): Acceleration initialization failed
...
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