Date: Thu, 2 Mar 2017 12:34:37 -0800 From: Mark Millard <markmi@dsl-only.net> To: Justin Hibbits <jrh29@alumni.cwru.edu> Cc: hiroo.ono+freebsd@gmail.com, freebsd-x11@freebsd.org, FreeBSD Current <freebsd-current@freebsd.org>, FreeBSD PowerPC ML <freebsd-ppc@freebsd.org> Subject: Re: PowerMac G5 and KMS Message-ID: <4EA794E6-D435-4958-853C-5421E03F3B46@dsl-only.net> In-Reply-To: <CAHSQbTDL6_DG3H9%2BAeOaw4qK_5vWRwwNPAk7nJvOESUU0NyN8g@mail.gmail.com> References: <CANtk6Sjtox1L32bUs_g5sOXfVSWkHF%2BhbB=CcO6wVxFtXJYsuw@mail.gmail.com> <CAHSQbTDL6_DG3H9%2BAeOaw4qK_5vWRwwNPAk7nJvOESUU0NyN8g@mail.gmail.com>
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On 2017-Mar-2, at 9:37 AM, Justin Hibbits <jrh29 at alumni.cwru.edu> = wrote: > On Thu, Mar 2, 2017 at 5:42 AM, Hiroo Ono (=E5=B0=8F=E9=87=8E=E5=AF=9B=E7= =94=9F) > <hiroo.ono+freebsd@gmail.com> wrote: >> I recently installed 12-current powerpc64 r313561 to a PowerMac G5 >> (it is dual processor, but I do not know its detail). >>=20 >> 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. >>=20 >> Is it possible to use KMS on FreeBSD/powerpc64? >>=20 >> The log in /var/log/messages is >>=20 >> after "kldload drm2", >>=20 >> kernel: info: [drm] Initialized drm 1.1.0 20060810 >>=20 >> and then, after "kldload radeonkms", >>=20 >> 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: =3D=3D=3D> 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: =3D=3D=3D> 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: =3D=3D=3D> Try = disabled BIOS >> (legacy)... >> kernel: info: [drm] radeon_read_bios: =3D=3D=3D> Try PCI Expansion = ROM... >> kernel: info: [drm] radeon_read_bios: Map address: 0xc000000061412000 >> (131072 bytes) >>=20 >> As the system locks up here, I have to power it off forcibly. >=20 > Congratulations (?) you are quite possibly the first person to report > even attempting to use radeonkms on powerpc64. Frankly, I'm not > surprised that it doesn't work for you. Unfortunately, I don't have a > solution, or even a means to track it down. Looking at the log > snippet, my first guess is there may need to be a provision added to > the driver for non-x86. Do you know what card this is? >=20 > Adding a couple other lists with people who might have more insight. >=20 > If it can be made to work, I'd definitely want to get a Radeon card = for my G5(s) >=20 > - Justin Back on 2014-Nov-21 I wrote the following in one of my messages on the lists on that day: > FYI: I've been building and trying Jean-S=C3=A9bastien P=C3=A9dron's = kms-drm-update-38 branch when Jean requested (sometimes with patches = that Jean provided). This was to give Jean some (indirect) access to a = powerpc64 (PowerMac G5) Radeon context for some radeonkms development. = (Jean had been hoping to get my card going in that context.) We got to = the point that a kldload for radeonkms did not complain/refuse but the = display was then munged up and the driver could not find the Video BIOS. = The fact that it is a Radeon X1950 for the video hardware may make it = odder than usual for PowerMac G5 Radeons. But it is the only Radeon that = I have access to for G5's. (The card works in Mac OS X 10.5.)=20 (As I remember this was a PowerMac G5 so-called "Quad Core" as the G5 context. I do not currently have access to the X1950 card.) I'm not sure from what I read if things are about the same vs. if things are worse now. I do not remember the details from back then, such as console vs. X11 that I was not explicit about in the quoted material. I eventually gave up on using X11 "for a time" --and have not tried = again so far. I've no clue about the current status for X11 on PowerMacs of any kind --or what I'd need to do to try it for the Radeon X1950 or any NVIDIA cards. (Currently an NVIDIA card is installed.) I will eventually have access to the X1950 again, but not soon. =3D=3D=3D Mark Millard markmi at dsl-only.net
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