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Date:      Thu, 2 Mar 2017 20:42:05 +0900
From:      =?UTF-8?B?SGlyb28gT25vICjlsI/ph47lr5vnlJ8p?= <hiroo.ono+freebsd@gmail.com>
To:        freebsd-ppc@freebsd.org
Subject:   PowerMac G5 and KMS
Message-ID:  <CANtk6Sjtox1L32bUs_g5sOXfVSWkHF%2BhbB=CcO6wVxFtXJYsuw@mail.gmail.com>

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I recently installed 12-current powerpc64 r313561 to a PowerMac G5
 (it is dual processor, but I do not know its detail).

When I try to load drm2.ko and radeonkms.ko,
the screen turns into black and recovers, then the system locks.
kldload command does not return, no response to keyboard input, etc.

Is it possible to use KMS on FreeBSD/powerpc64?

The log in /var/log/messages is

after "kldload drm2",

kernel: info: [drm] Initialized drm 1.1.0 20060810

and then, after "kldload radeonkms",

kernel: iic0: <I2C generic I/O> on iicbus0
kernel: iic1: <I2C generic I/O> on iicbus1
kernel: drmn0: <ATI Radeon AP 9600> on vgapci0
kernel: info: [drm] RADEON_IS_AGP
kernel: info: [drm] initializing kernel modesetting (RV350 0x1002:0x4150
0x1002:0x4150).
kernel: info: [drm] register mmio base: 0x90000000
kernel: info: [drm] register mmio size: 65536
kernel: info: [drm] igp_read_bios_from_vram: ===> Try IGP's VRAM...
kernel: info: [drm] igp_read_bios_from_vram: VRAM base address: 0x98000000
kernel: info: [drm] igp_read_bios_from_vram: Map address:
0xc000000061412000 (262144 bytes)
kernel: info: [drm] igp_read_bios_from_vram: Incorrect BIOS signature:
0x0000
kernel: info: [drm] radeon_read_bios: ===> Try PCI Expansion ROM...
kernel: info: [drm] radeon_read_bios: Map address: 0xc000000061412000
(131072 bytes)
kernel: info: [drm] radeon_read_bios: Incorrect BIOS signature: 0x2AFF
kernel: info: [drm] legacy_read_disabled_bios: ===> Try disabled BIOS
(legacy)...
kernel: info: [drm] radeon_read_bios: ===> Try PCI Expansion ROM...
kernel: info: [drm] radeon_read_bios: Map address: 0xc000000061412000
(131072 bytes)

As the system locks up here, I have to power it off forcibly.



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