Does drm/dri currently work on PPC?
chmeeedalf at gmail.com
Fri Oct 26 01:30:22 UTC 2012
On Thu, 25 Oct 2012 17:53:59 -0700
matt <sendtomatt at gmail.com> wrote:
> On 10/25/12 13:53, Albert Vest wrote:
> > I also use Radeon r200, but on an i386 machine. Same symptom
> > happens to me if I don't force BusType to PCI in my xorg.conf:
> > ...
> > Option "BusType" "PCI" # Force IGP to PCI
> > ...
> > hope that helps,
> > Albert.
> So far it doesn't look like that helps. It took a bit longer to crash,
> and the screen flashed a pleasing pinkish-maroon before the system
> locked up. I'm going to keep trying to fiddle driver section values,
> but I think there's something architecturally wrong/missing.
> Here's what I've noticed:
> In /usr/src/sys/dev/drmP.h,
> we have htole16 and htole32 wrapped around drm read and write
> functions, which neither netbsd nor openbsd have (perhaps they wrap
> it elsewhere). drm_read8 and drm_write8 on freebsd are not wrapped,
> which seems odd to me? I can understand all or none, but "some" seems
> like 8-bit reads and writes are either going to be the only ones that
> work or the only ones that don't.
> When I try to start X, I am also seeing this mess (X -configure as
> well) with WITH_NEW_XORG. I have hw.ofwfb.relax_mmap=1.
> [ 251.670] (WW) xf86EnableIO -1
> [ 251.671] (II) xf86EnableIO: ffffffff
> [ 251.671] (WW) Can't map IO space!
> [ 251.671] (--) PCI: (0:0:16:0) 1002:4966:1002:4966 rev 1, Mem @
> 0x98000000/134217728, 0x90000000/65536, I/O @ 0x00000400/256, BIOS @
> [ 251.719] List of video drivers:
> [ 251.719] ati
> [ 251.719] radeon
> [ 251.720] (II) LoadModule: "ati"
> [ 251.791] (II)
> Loading /usr/local/lib/xorg/modules/drivers/ati_drv.so [ 251.803]
> (II) Module ati: vendor="X.Org Foundation" [ 251.803] compiled
> for 1.10.6, module version = 6.14.6 [ 251.803] Module class:
> X.Org Video Driver [ 251.803] ABI class: X.Org Video Driver,
> version 10.0 [ 251.803] (II) LoadModule: "radeon"
> [ 251.805] (II)
> Loading /usr/local/lib/xorg/modules/drivers/radeon_drv.so
> [ 251.895] (II) Module radeon: vendor="X.Org
> Foundation" [ 251.895] compiled for 1.10.6, module version =
> 6.14.6 [ 251.895] Module class: X.Org Video Driver
> [ 251.895] ABI class: X.Org Video Driver, version 10.0
> [ 251.895] (WW) xf86EnableIO -1 [ 251.895] (II) xf86EnableIO:
> ffffffff [ 251.895] (WW) Can't map IO space!
> [ 251.895] No devices to configure. Configuration failed.
Can't help you with the X error issue you're seeing (does it work if
you don't load the radeon module? That'd be the first thing to get
working, then worry about drm), but you may be on to something with the
DRM endian you found. NetBSD's drmP.h writes bus-order (little endian)
only in register space, not in framebuffer space. Although I think this
would only mess up the colors, but I may be wrong.
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