DRM on less ancient radeons

[Michael <macallan1888%gmail.com@localhost>]

Hello,

I finally got around to try a DRM kernel on the 11,2:
[     1.000000] radeon0 at pci0 dev 0 function 0: ATI Technologies Radeon X1950 XTX (rev. 0x00)
...
[    63.889995] kern.module.path=/stand/macppc/9.99.99/modules
[    64.269994] [drm] initializing kernel modesetting (R580 0x1002:0x7240 0x1002:0x7240 0x00).
[    64.269994] [drm] register mmio base: 0x90000000
[    64.269994] [drm] register mmio size: 65536
[    64.269994] {drm:netbsd:radeon_get_bios+0xabc} *ERROR* Unable to locate a BIOS ROM
[    64.269994] radeon0: autoconfiguration error: error: Fatal error during GPU init
[    64.269994] radeon0: autoconfiguration error: unable to register drm: 22
[    64.999995] WARNING: system needs entropy for security; see entropy(7)
[    65.519995] panic: cnopen: no console device

No surprise there, all radeon drivers I've seen so far use x86 BIOS
calls for CRTC programming on r5xx devices, and this card doesn't have
an x86 BIOS.
On radeonfb we cheat - it skips CRTC programing on these devices and
uses whatever video mode the firmware hands us.

have fun
Michael