Hi All,
AGP mode/support is deactivated on PowerPC and it doesn't work reliable
And what does these lines mean:
PowerMac G5 Dual:
OpenGL vendor string: DRI R300 Project
OpenGL renderer string: Mesa DRI R300 (RV350 4152) 20090101 AGP 8x
PowerPC 64/Altivec TCL
OpenGL version string: 1.5 Me
On Wed, 13 May 2020 at 14:44, Christian Zigotzky wrote:
>
> OpenGL version string: 1.5 Mesa 7.6
> OpenGL version string: 1.3 Mesa 7.2
>
> Screenshots:
>
> - http://www.supertuxkart.de/stk07ubuntu910ppc.png
> - http://www.supertuxkart.de/opensuse111-stk073.jpg
Those are *extremely old* (and I mean
On Wed, 13 May 2020 at 11:58, Michel Dänzer wrote:
>
> How do you know you're hitting that particular issue?
Sorry, somehow I misread that. I was still thinking of the AGP hangs.
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On Wed, 13 May 2020 at 08:19, Daniel Vetter wrote:
>
> i915 is even worse, we manually mess around with clflush. In
> userspace. So really there's 2 axis for dma memory: coherent vs.
> non-coherent (which is something the dma-api somewhat exposed), i.e.
> do you need to clflush or not, and cached
On Wed, 13 May 2020 at 11:27, Michel Dänzer wrote:
>
> The only theoretical problem there was that the kernel still had a
> cacheable mapping of the same memory, and any access via that (e.g.
> prefetch due to access to a neighbouring page) could trigger a machine
> check. But I don't remember eve
Hello Christian!
On 5/13/20 3:44 PM, Christian Zigotzky wrote:
> AGP mode/support is deactivated on PowerPC and it doesn't work reliable
>
> And what does these lines mean:
AGP mode is actually disabled in the Radeon driver for PowerPC as Alex has
pointed
out earlier in this thread [1]. You
On 2020-05-13 12:39 p.m., Rui Salvaterra wrote:
> On Wed, 13 May 2020 at 11:27, Michel Dänzer wrote:
>>
>> The only theoretical problem there was that the kernel still had a
>> cacheable mapping of the same memory, and any access via that (e.g.
>> prefetch due to access to a neighbouring page) cou
On 2020-05-13 12:29 p.m., Daniel Vetter wrote:
> On Wed, May 13, 2020 at 12:26 PM Michel Dänzer wrote:
>>
>> On 2020-05-13 11:28 a.m., Rui Salvaterra wrote:
>>> On Wed, 13 May 2020 at 08:19, Daniel Vetter wrote:
i915 is even worse, we manually mess around with clflush. In
userspace
On Wed, May 13, 2020 at 12:26 PM Michel Dänzer wrote:
>
> On 2020-05-13 11:28 a.m., Rui Salvaterra wrote:
> > On Wed, 13 May 2020 at 08:19, Daniel Vetter wrote:
> >>
> >> i915 is even worse, we manually mess around with clflush. In
> >> userspace. So really there's 2 axis for dma memory: coherent
On 2020-05-13 11:28 a.m., Rui Salvaterra wrote:
> On Wed, 13 May 2020 at 08:19, Daniel Vetter wrote:
>>
>> i915 is even worse, we manually mess around with clflush. In
>> userspace. So really there's 2 axis for dma memory: coherent vs.
>> non-coherent (which is something the dma-api somewhat expos
On Wed, May 13, 2020 at 9:55 AM Christian König
wrote:
>
> Am 13.05.20 um 09:19 schrieb Daniel Vetter:
> > On Tue, May 12, 2020 at 8:22 PM Alex Deucher wrote:
> >> On Tue, May 12, 2020 at 12:38 PM Daniel Vetter wrote:
> >>> On Tue, May 12, 2020 at 3:22 PM Alex Deucher
> >>> wrote:
> On Tu
Hi,
On Tue, 12 May 2020, Rui Salvaterra wrote:
> > FWIW, on my last-generation PowerBook with RV350 (IIRC), there was a
> > big performance difference between AGP and PCI GART. The latter was
> > sort of usable for normal desktop operation, but not so much for
> > OpenGL apps (which were usable w
On Tue, 12 May 2020 at 08:58, Michel Dänzer wrote:
>
> FWIW, on my last-generation PowerBook with RV350 (IIRC), there was a big
> performance difference between AGP and PCI GART. The latter was sort of
> usable for normal desktop operation, but not so much for OpenGL apps
> (which were usable with
On Tue, 12 May 2020 at 17:38, Daniel Vetter wrote:
>
> Otherwise all agree, agp is a mighty mess and essentially just
> crapshot outside of x86. It kinda worked for the much more static
> allocations for dri1, but with in-kernel memory managers all the cache
> flushing issues showed up big time an
Am 13.05.20 um 09:19 schrieb Daniel Vetter:
On Tue, May 12, 2020 at 8:22 PM Alex Deucher wrote:
On Tue, May 12, 2020 at 12:38 PM Daniel Vetter wrote:
On Tue, May 12, 2020 at 3:22 PM Alex Deucher wrote:
On Tue, May 12, 2020 at 5:40 AM Karoly Balogh (Charlie/SGR)
wrote:
Hi,
On Tue, 12 May
Am 12.05.20 um 22:12 schrieb Dave Airlie:
On Wed, 13 May 2020 at 04:21, Alex Deucher wrote:
On Tue, May 12, 2020 at 1:02 PM Rui Salvaterra wrote:
On Tue, 12 May 2020 at 17:38, Daniel Vetter wrote:
Otherwise all agree, agp is a mighty mess and essentially just
crapshot outside of x86. It kin
On Tue, May 12, 2020 at 8:22 PM Alex Deucher wrote:
>
> On Tue, May 12, 2020 at 12:38 PM Daniel Vetter wrote:
> >
> > On Tue, May 12, 2020 at 3:22 PM Alex Deucher wrote:
> > >
> > > On Tue, May 12, 2020 at 5:40 AM Karoly Balogh (Charlie/SGR)
> > > wrote:
> > > >
> > > > Hi,
> > > >
> > > > On T
On Wed, 13 May 2020 at 04:21, Alex Deucher wrote:
>
> On Tue, May 12, 2020 at 1:02 PM Rui Salvaterra wrote:
> >
> > On Tue, 12 May 2020 at 17:38, Daniel Vetter wrote:
> > >
> > > Otherwise all agree, agp is a mighty mess and essentially just
> > > crapshot outside of x86. It kinda worked for the
On Tue, May 12, 2020 at 12:38 PM Daniel Vetter wrote:
>
> On Tue, May 12, 2020 at 3:22 PM Alex Deucher wrote:
> >
> > On Tue, May 12, 2020 at 5:40 AM Karoly Balogh (Charlie/SGR)
> > wrote:
> > >
> > > Hi,
> > >
> > > On Tue, 12 May 2020, Rui Salvaterra wrote:
> > >
> > > > > FWIW, on my last-gen
On Tue, May 12, 2020 at 1:02 PM Rui Salvaterra wrote:
>
> On Tue, 12 May 2020 at 17:38, Daniel Vetter wrote:
> >
> > Otherwise all agree, agp is a mighty mess and essentially just
> > crapshot outside of x86. It kinda worked for the much more static
> > allocations for dri1, but with in-kernel me
On Tue, May 12, 2020 at 3:22 PM Alex Deucher wrote:
>
> On Tue, May 12, 2020 at 5:40 AM Karoly Balogh (Charlie/SGR)
> wrote:
> >
> > Hi,
> >
> > On Tue, 12 May 2020, Rui Salvaterra wrote:
> >
> > > > FWIW, on my last-generation PowerBook with RV350 (IIRC), there was a
> > > > big performance diff
On Tue, May 12, 2020 at 5:40 AM Karoly Balogh (Charlie/SGR)
wrote:
>
> Hi,
>
> On Tue, 12 May 2020, Rui Salvaterra wrote:
>
> > > FWIW, on my last-generation PowerBook with RV350 (IIRC), there was a
> > > big performance difference between AGP and PCI GART. The latter was
> > > sort of usable for
Hi David!
On 5/12/20 7:04 AM, David VANTYGHEM wrote:
> Im happy now that after your work, Debian and GRUB install fine on my
> iMac G3. But Xserver doesn't start, I've got an AMD Rage 128 Pro AGP 4x
> (see joined screenshot).
This is an unrelated problem as the reason why you don't have a working
Am 11.05.20 um 22:56 schrieb Al Dunsmuir:
Hello Dave,
On Monday, May 11, 2020, 4:43:01 PM, Dave Airlie wrote:
On Tue, 12 May 2020 at 06:28, Alex Deucher wrote:
[SNIP]
Maybe we can find some way to compartmentalise AGP further?
Dave.
Significantly reduced caching on memory accesses defin
On 2020-05-11 10:51 p.m., Alex Deucher wrote:
> On Mon, May 11, 2020 at 4:25 PM Rui Salvaterra wrote:
>> A segunda, 11/05/2020, 21:21, Alex Deucher escreveu:
>>>
>>> Note there is no loss of functionality here, at least on radeon
>>> hardware. It just comes down to which MMU gets used for access
Am 11.05.20 um 22:46 schrieb Alex Deucher:
On Mon, May 11, 2020 at 4:41 PM John Paul Adrian Glaubitz
wrote:
On 5/11/20 10:05 PM, Alex Deucher wrote:
For Nouveau I'm not 100% sure, but from the code it of hand looks like we can
do it similar to Radeon.
Please comment what you think about this
Am 11.05.20 um 22:24 schrieb John Paul Adrian Glaubitz:
> On 5/11/20 10:12 PM, Christian König wrote:
>> I unfortunately only have an x86 Mac to test this on, but as far as I know
>> the Radeon
>> AGP support for PowerPC is disabled for years already because it didn't
>> worked reliable.
>
> I ha
A segunda, 11/05/2020, 21:21, Alex Deucher escreveu:
>
>
> Note there is no loss of functionality here, at least on radeon
> hardware. It just comes down to which MMU gets used for access to
> system memory, the AGP MMU on the chipset or the MMU built into the
> GPU. On powerpc hardware, AGP ha
Hi Alex!
On 5/11/20 10:46 PM, Alex Deucher wrote:
>>> Note there is no loss of functionality here, at least on radeon
>>> hardware. It just comes down to which MMU gets used for access to
>>> system memory, the AGP MMU on the chipset or the MMU built into the
>>> GPU. On powerpc hardware, AGP ha
On Mon, 11 May 2020 at 21:43, Dave Airlie wrote:
>
> On Tue, 12 May 2020 at 06:28, Alex Deucher wrote:
> >
> > On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir
> > wrote:
> > >
> > > On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
> > > > Hi guys,
> > >
> > > > Well let's face it AGP i
Hello Dave,
On Monday, May 11, 2020, 4:43:01 PM, Dave Airlie wrote:
> On Tue, 12 May 2020 at 06:28, Alex Deucher wrote:
>>
>> On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir wrote:
>> Note there is no loss of functionality here, at least on radeon
>> hardware. It just comes down to which MMU gets u
On Mon, May 11, 2020 at 4:25 PM Rui Salvaterra wrote:
>
>
>
> A segunda, 11/05/2020, 21:21, Alex Deucher escreveu:
>>
>>
>>
>> Note there is no loss of functionality here, at least on radeon
>> hardware. It just comes down to which MMU gets used for access to
>> system memory, the AGP MMU on the
On Monday, May 11, 2020, 4:27:55 PM, Alex Deucher wrote:
> On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir wrote:
>>
>> On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
>> > Hi guys,
>>
>> > Well let's face it AGP is a total headache to maintain and dead for at
>> > least 10+ years.
>>
>
On Mon, May 11, 2020 at 4:41 PM John Paul Adrian Glaubitz
wrote:
>
> On 5/11/20 10:05 PM, Alex Deucher wrote:
> >>> For Nouveau I'm not 100% sure, but from the code it of hand looks like we
> >>> can do it similar to Radeon.
> >>>
> >>> Please comment what you think about this.
> >>
> >> I would
On Tue, 12 May 2020 at 06:28, Alex Deucher wrote:
>
> On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir wrote:
> >
> > On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
> > > Hi guys,
> >
> > > Well let's face it AGP is a total headache to maintain and dead for at
> > > least 10+ years.
>
On 5/11/20 10:05 PM, Alex Deucher wrote:
>>> For Nouveau I'm not 100% sure, but from the code it of hand looks like we
>>> can do it similar to Radeon.
>>>
>>> Please comment what you think about this.
>>
>> I would be against such a move as AGP graphics is still used by people
>> running the pow
On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir wrote:
>
> On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
> > Hi guys,
>
> > Well let's face it AGP is a total headache to maintain and dead for at
> > least 10+ years.
>
> > We have a lot of x86 specific stuff in the architecture indepen
On 5/11/20 10:12 PM, Christian König wrote:
> I unfortunately only have an x86 Mac to test this on, but as far as I know
> the Radeon
> AGP support for PowerPC is disabled for years already because it didn't
> worked reliable.
I have a current Debian unstable running on an iBook G4 with Radeon g
On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
> Hi guys,
> Well let's face it AGP is a total headache to maintain and dead for at least
> 10+ years.
> We have a lot of x86 specific stuff in the architecture independent
> graphics memory management to get the caching right, abusin
Am 11.05.20 um 21:55 schrieb John Paul Adrian Glaubitz:
Hi Christian!
Well let's face it AGP is a total headache to maintain and dead for at least
10+ years.
We have a lot of x86 specific stuff in the architecture independent graphics
memory management
to get the caching right, abusing the D
On Mon, May 11, 2020 at 4:02 PM John Paul Adrian Glaubitz
wrote:
>
> Hi Christian!
>
> > Well let's face it AGP is a total headache to maintain and dead for at
> > least 10+ years.
> >
> > We have a lot of x86 specific stuff in the architecture independent
> > graphics memory management
> > to g
Hi Christian!
> Well let's face it AGP is a total headache to maintain and dead for at least
> 10+ years.
>
> We have a lot of x86 specific stuff in the architecture independent graphics
> memory management
> to get the caching right, abusing the DMA API on multiple occasions, need to
> distinc
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