[Nouveau] pstate for NVS140

2015-09-18 Thread Dylan Taft
I'm trying out the 4.3 RC kernel, major improvements with Nouveau on
my old T61 laptop with an NVS140 GPU.  Stability and performance both
seem massively increased.  There are still some stability issues with
3D games and switching resolutions on the fly.  2D performance kicks
the pants off the binary driver, 3D performance seems to be catching
up.

I noticed a module setting for pstate for clocking up and down the
GPU, but it's "unimplemented".

Dug into the kernel source and saw that my GPU is considered g86 from
what I can tell.  It calls the g84_clk_new function, which calls the
the nv50_clk_new_ code.  It looks very much implemented.

There's a check in g84_clk_new, checks if the GPU chipset is 0xa0.

Anyway, if I just pass in true for the allow_reclock param, it does
work, it looks like a lot of chipsets just share the NV50 base code?
The clock rates and such appear to be pulled from GPU registers or
something.

cat pstate
20: core 169 MHz shader 338 MHz memory 100 MHz
21: core 275 MHz shader 550 MHz memory 301 MHz
22: core 400 MHz shader 800 MHz memory 600 MHz AC DC *
AC: core 400 MHz shader 800 MHz memory 302 MHz

It nets an extra 60-70fps in glxgears, and a handful of FPS in games.
Stability wise it works best making adjustments from a virtual console
while no graphically intense apps are running in X, ideally even
before X starts, it can get unstable during change.

I guess long story short, is there anything I can do in regards to
testing to help get it enabled upstream for NVS140?

Cool stuff.  Thanks for all the work on the Nouveau driver.  The 4.3
driver is pretty great!
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[Nouveau] External monitor remains black - nouveau reports "link training failed"

2015-09-18 Thread Fredy Neeser

Hi list,

I had a working dual-monitor setup with KDE Plasma 5 on a Lenovo W530
"Optimus" laptop (hybrid graphics, nouveau + i915 drivers), but it seems to
fall apart with recent kernels.

My setup works fine with kernels up to and including 4.1.3-201.fc22.x86_64,
but  with kernel  4.1.6-200.fc22  (as well as another update on top of
4.1.6), the external monitor remains black, and the journal shows several
lines

kernel: nouveau E[   PDISP][:01:00.0][0x0006] 06:0006:0f48:
link training failed

not present with previous kernels -- see also

  https://bugzilla.redhat.com/show_bug.cgi?id=1260053
  Bug 1260053 - External monitor remains black with kernel
4.1.6-200.fc22.x86_64 - nouveau reports "link training failed"


Any ideas for debugging / narrowing down the issue are much appreciated.

Fredy Neeser
IBM Zurich Research Laboratory
Switzerland

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Re: [Nouveau] pstate for NVS140

2015-09-18 Thread Ilia Mirkin
On Tue, Sep 15, 2015 at 1:39 AM, Dylan Taft  wrote:
> I'm trying out the 4.3 RC kernel, major improvements with Nouveau on
> my old T61 laptop with an NVS140 GPU.  Stability and performance both
> seem massively increased.  There are still some stability issues with
> 3D games and switching resolutions on the fly.  2D performance kicks
> the pants off the binary driver, 3D performance seems to be catching
> up.
>
> I noticed a module setting for pstate for clocking up and down the
> GPU, but it's "unimplemented".
>
> Dug into the kernel source and saw that my GPU is considered g86 from
> what I can tell.  It calls the g84_clk_new function, which calls the
> the nv50_clk_new_ code.  It looks very much implemented.
>
> There's a check in g84_clk_new, checks if the GPU chipset is 0xa0.
>
> Anyway, if I just pass in true for the allow_reclock param, it does
> work, it looks like a lot of chipsets just share the NV50 base code?
> The clock rates and such appear to be pulled from GPU registers or
> something.
>
> cat pstate
> 20: core 169 MHz shader 338 MHz memory 100 MHz
> 21: core 275 MHz shader 550 MHz memory 301 MHz
> 22: core 400 MHz shader 800 MHz memory 600 MHz AC DC *
> AC: core 400 MHz shader 800 MHz memory 302 MHz

Note that the memory clock stayed at 300mhz, which isn't great.

>
> It nets an extra 60-70fps in glxgears, and a handful of FPS in games.
> Stability wise it works best making adjustments from a virtual console
> while no graphically intense apps are running in X, ideally even
> before X starts, it can get unstable during change.
>
> I guess long story short, is there anything I can do in regards to
> testing to help get it enabled upstream for NVS140?

Roy, what do you need?

At a very minimum, please supply your VBIOS
(/sys/kernel/debug/dri/0/vbios.rom), hopefully that'll give some hints
as to why memory didn't reclock. A full mmiotrace of the blob driver
starting up would be good too, that should include a reclock sequence
up to the highest level. (See https://wiki.ubuntu.com/X/MMIOTracing)

  -ilia
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Re: [Nouveau] nvs280 / nv34 card only does 1680x1050, not 1920x1080 ?

2015-09-18 Thread poma
On 04.09.2015 19:40, poma wrote:
> On 04.09.2015 16:56, Ilia Mirkin wrote:
>> Tmds is limited to 135mhz on nv3x. If you use analog, you can get full
>> resolution.
>> On Sep 4, 2015 9:00 AM, "Hans de Goede"  wrote:
>>
>>> Hi All,
>>>
>>> I've recently acquired a nvs280 card, which is a nv34
>>> gpu based card with a pci-e bridge on the card, this
>>> way I can test nv3x problems without needing an agp
>>> motherboard.
>>>
>>> One thing which stands out with this card is that
>>> it drivers my dvi lcd monitor at 1680x1050 instead of its
>>> native 1920x1080.
>>>
>>> Is this due to a known limitation on the display pipeline
>>> of these cards / nv34 gpu-s. Or is this more likely a bug
>>> somewhere ?
>>>
>>> Regards,
>>>
>>> Hans
>>>
> 
> man 1 cvt
> "Create a mode with reduced blanking. ..."
> 
> Enough to fit,
> GeForce FX 5200 −DVI− LCD FullHD
> 
> xrandr --newmode "1920x1080R" 138.50 1920 1968 2000 2080 1080 1083 1088  
> +hsync -vsync
> xrandr --addmode  1920x1080R
> xrandr --output  --mode 1920x1080R
> 
> 
> 

Via xorg conf:

/etc/X11/xorg.conf.d/00-FullHD.conf
Section "Monitor"
Identifier  "LCD FullHD"
Modeline"1920x1080R" 138.50 1920 1968 2000 2080 1080 1083 1088  
+HSync -VSync
#   Modeline...
Option  "PreferredMode" "1920x1080R"
EndSection

Section "Device"
Identifier  "Chipset NV34"
Option  "Monitor-" "LCD FullHD"
EndSection


man 5 xorg.conf


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[Nouveau] [Bug 90871] NV30: Xfwm4 use_compositing - garbled display

2015-09-18 Thread bugzilla-daemon
https://bugs.freedesktop.org/show_bug.cgi?id=90871

--- Comment #37 from poma  ---

dmesg - S4 RESUME(THAW) - Xfwm4 "xpresent" - when compositing turned on:

nouveau E[  PGRAPH][:01:00.0]  (unknown bits 0x0080) nsource: nstatus:
nouveau E[  PGRAPH][:01:00.0] ch 1 [Xorg[493]] subc 0 class 0x0039 mthd
0x0100 data 0x

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[Nouveau] [Bug 92032] NV30: WARNING: CPU: 0 PID: 290 at lib/dma-debug.c:1205 check_sync+0x169/0x6e0()

2015-09-18 Thread bugzilla-daemon
https://bugs.freedesktop.org/show_bug.cgi?id=92032

--- Comment #3 from poma  ---

BTW it is the same device:
"NV30: Xfwm4 use_compositing - garbled display"
https://bugs.freedesktop.org/show_bug.cgi?id=90871

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Re: [Nouveau] [PATCH] display: allow up to 16k width/height for fermi+

2015-09-18 Thread Ben Skeggs
On 18 September 2015 at 12:31, Ilia Mirkin  wrote:
> Signed-off-by: Ilia Mirkin 
> ---
>
> mrnuke on IRC reported that 3x 4K monitors (11520 width total) got
> rejected for some reason. I'm guessing it's this since a single giant
> FB has to be used.
>
> Not sure if the hardware will actually support it, but... who knows.
After looking at the EVO headers, I believe this should be fine.  Did
the patch get tested to confirm?

I'd also make the subject "kms" rather than "display".

Ben.

>
>  drm/nouveau/nouveau_display.c | 6 +-
>  1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drm/nouveau/nouveau_display.c b/drm/nouveau/nouveau_display.c
> index 8d0e60d..d3d6438 100644
> --- a/drm/nouveau/nouveau_display.c
> +++ b/drm/nouveau/nouveau_display.c
> @@ -469,9 +469,13 @@ nouveau_display_create(struct drm_device *dev)
> if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
> dev->mode_config.max_width = 4096;
> dev->mode_config.max_height = 4096;
> -   } else {
> +   } else
> +   if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI) {
> dev->mode_config.max_width = 8192;
> dev->mode_config.max_height = 8192;
> +   } else {
> +   dev->mode_config.max_width = 16384;
> +   dev->mode_config.max_height = 16384;
> }
>
> dev->mode_config.preferred_depth = 24;
> --
> 2.4.6
>
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Re: [Nouveau] [PATCH 1/2] nouveau: arm: Add MODULE_FIRMWARE for gk20a

2015-09-18 Thread Alexandre Courbot
On Wed, Sep 9, 2015 at 11:04 PM, Nicolas Chauvet  wrote:
> This patch is needed by initramfs tools to detect
> the required firmware files for the module.
>
> This patch tests for NOUVEAU_PLATFORM_DRIVER and either
> TEGRA_124_SOC or TEGRA_132_SOC for the firmwares related to
> the Tegra K1 generation.

I think you should send this to the Nouveau tree, especially since the
kernel tree probably predates the big refactoring that Nouveau has
undergone.

I also wonder whether these MODULE_FIRMWARE() statements could not be
placed in a more appropriate place, like nouveau_platform.c? This
would allow you to get rid of the test for
CONFIG_NOUVEAU_PLATFORM_DRIVER.

>
> Signed-off-by: Nicolas Chauvet 
> ---
>  drivers/gpu/drm/nouveau/nouveau_drm.c | 11 +++
>  1 file changed, 11 insertions(+)
>
> diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c 
> b/drivers/gpu/drm/nouveau/nouveau_drm.c
> index ccefb64..862c225 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_drm.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
> @@ -,3 +,14 @@ MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
>  MODULE_AUTHOR(DRIVER_AUTHOR);
>  MODULE_DESCRIPTION(DRIVER_DESC);
>  MODULE_LICENSE("GPL and additional rights");
> +#if defined(CONFIG_NOUVEAU_PLATFORM_DRIVER) && \
> +  (IS_ENABLED(CONFIG_ARCH_TEGRA_124_SOC) || 
> IS_ENABLED(CONFIG_ARCH_TEGRA_132_SOC))
> +MODULE_FIRMWARE("nvidia/gk20a/fecs_data.bin");
> +MODULE_FIRMWARE("nvidia/gk20a/fecs_inst.bin");
> +MODULE_FIRMWARE("nvidia/gk20a/gpccs_data.bin");
> +MODULE_FIRMWARE("nvidia/gk20a/gpccs_inst.bin");
> +MODULE_FIRMWARE("nvidia/gk20a/sw_bundle_init.bin");
> +MODULE_FIRMWARE("nvidia/gk20a/sw_ctx.bin");
> +MODULE_FIRMWARE("nvidia/gk20a/sw_method_init.bin");
> +MODULE_FIRMWARE("nvidia/gk20a/sw_nonctx.bin");
> +#endif
> --
> 2.4.3
>
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Re: [Nouveau] [PATCH] display: allow up to 16k width/height for fermi+

2015-09-18 Thread Ilia Mirkin
On Fri, Sep 18, 2015 at 9:41 AM, Ben Skeggs  wrote:
> On 18 September 2015 at 12:31, Ilia Mirkin  wrote:
>> Signed-off-by: Ilia Mirkin 
>> ---
>>
>> mrnuke on IRC reported that 3x 4K monitors (11520 width total) got
>> rejected for some reason. I'm guessing it's this since a single giant
>> FB has to be used.
>>
>> Not sure if the hardware will actually support it, but... who knows.
> After looking at the EVO headers, I believe this should be fine.  Did
> the patch get tested to confirm?

Not yet. Although in the meanwhile I realized that I don't actually
need 3x 4K monitors... I can just run this patch and do something like
xrandr --fb 16384x16384. But unfortunately there's no monitor
connected in my setup where I can reload nouveau easily, and I reboot
rarely where I do have monitors connected.

>
> I'd also make the subject "kms" rather than "display".
>
> Ben.
>
>>
>>  drm/nouveau/nouveau_display.c | 6 +-
>>  1 file changed, 5 insertions(+), 1 deletion(-)
>>
>> diff --git a/drm/nouveau/nouveau_display.c b/drm/nouveau/nouveau_display.c
>> index 8d0e60d..d3d6438 100644
>> --- a/drm/nouveau/nouveau_display.c
>> +++ b/drm/nouveau/nouveau_display.c
>> @@ -469,9 +469,13 @@ nouveau_display_create(struct drm_device *dev)
>> if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
>> dev->mode_config.max_width = 4096;
>> dev->mode_config.max_height = 4096;
>> -   } else {
>> +   } else
>> +   if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI) {
>> dev->mode_config.max_width = 8192;
>> dev->mode_config.max_height = 8192;
>> +   } else {
>> +   dev->mode_config.max_width = 16384;
>> +   dev->mode_config.max_height = 16384;
>> }
>>
>> dev->mode_config.preferred_depth = 24;
>> --
>> 2.4.6
>>
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Re: [Nouveau] [PATCH] display: allow up to 16k width/height for fermi+

2015-09-18 Thread Ben Skeggs
On 19 September 2015 at 03:24, Ilia Mirkin  wrote:
> On Fri, Sep 18, 2015 at 9:41 AM, Ben Skeggs  wrote:
>> On 18 September 2015 at 12:31, Ilia Mirkin  wrote:
>>> Signed-off-by: Ilia Mirkin 
>>> ---
>>>
>>> mrnuke on IRC reported that 3x 4K monitors (11520 width total) got
>>> rejected for some reason. I'm guessing it's this since a single giant
>>> FB has to be used.
>>>
>>> Not sure if the hardware will actually support it, but... who knows.
>> After looking at the EVO headers, I believe this should be fine.  Did
>> the patch get tested to confirm?
>
> Not yet. Although in the meanwhile I realized that I don't actually
> need 3x 4K monitors... I can just run this patch and do something like
> xrandr --fb 16384x16384. But unfortunately there's no monitor
> connected in my setup where I can reload nouveau easily, and I reboot
> rarely where I do have monitors connected.
Doh!  True :)

>
>>
>> I'd also make the subject "kms" rather than "display".
>>
>> Ben.
>>
>>>
>>>  drm/nouveau/nouveau_display.c | 6 +-
>>>  1 file changed, 5 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/drm/nouveau/nouveau_display.c b/drm/nouveau/nouveau_display.c
>>> index 8d0e60d..d3d6438 100644
>>> --- a/drm/nouveau/nouveau_display.c
>>> +++ b/drm/nouveau/nouveau_display.c
>>> @@ -469,9 +469,13 @@ nouveau_display_create(struct drm_device *dev)
>>> if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
>>> dev->mode_config.max_width = 4096;
>>> dev->mode_config.max_height = 4096;
>>> -   } else {
>>> +   } else
>>> +   if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI) {
>>> dev->mode_config.max_width = 8192;
>>> dev->mode_config.max_height = 8192;
>>> +   } else {
>>> +   dev->mode_config.max_width = 16384;
>>> +   dev->mode_config.max_height = 16384;
>>> }
>>>
>>> dev->mode_config.preferred_depth = 24;
>>> --
>>> 2.4.6
>>>
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Re: [Nouveau] [PATCH 1/2] nouveau: arm: Add MODULE_FIRMWARE for gk20a

2015-09-18 Thread Ben Skeggs
On 19 September 2015 at 01:52, Alexandre Courbot  wrote:
> On Wed, Sep 9, 2015 at 11:04 PM, Nicolas Chauvet  wrote:
>> This patch is needed by initramfs tools to detect
>> the required firmware files for the module.
>>
>> This patch tests for NOUVEAU_PLATFORM_DRIVER and either
>> TEGRA_124_SOC or TEGRA_132_SOC for the firmwares related to
>> the Tegra K1 generation.
>
> I think you should send this to the Nouveau tree, especially since the
> kernel tree probably predates the big refactoring that Nouveau has
> undergone.
>
> I also wonder whether these MODULE_FIRMWARE() statements could not be
> placed in a more appropriate place, like nouveau_platform.c? This
> would allow you to get rid of the test for
> CONFIG_NOUVEAU_PLATFORM_DRIVER.
Is there any need to be conditional at all?  For dGPUs we're going to
have to have them all unconditional anyway, as we have know way of
knowing which GPU it's going to be used with.

Ben.

>
>>
>> Signed-off-by: Nicolas Chauvet 
>> ---
>>  drivers/gpu/drm/nouveau/nouveau_drm.c | 11 +++
>>  1 file changed, 11 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c 
>> b/drivers/gpu/drm/nouveau/nouveau_drm.c
>> index ccefb64..862c225 100644
>> --- a/drivers/gpu/drm/nouveau/nouveau_drm.c
>> +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
>> @@ -,3 +,14 @@ MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
>>  MODULE_AUTHOR(DRIVER_AUTHOR);
>>  MODULE_DESCRIPTION(DRIVER_DESC);
>>  MODULE_LICENSE("GPL and additional rights");
>> +#if defined(CONFIG_NOUVEAU_PLATFORM_DRIVER) && \
>> +  (IS_ENABLED(CONFIG_ARCH_TEGRA_124_SOC) || 
>> IS_ENABLED(CONFIG_ARCH_TEGRA_132_SOC))
>> +MODULE_FIRMWARE("nvidia/gk20a/fecs_data.bin");
>> +MODULE_FIRMWARE("nvidia/gk20a/fecs_inst.bin");
>> +MODULE_FIRMWARE("nvidia/gk20a/gpccs_data.bin");
>> +MODULE_FIRMWARE("nvidia/gk20a/gpccs_inst.bin");
>> +MODULE_FIRMWARE("nvidia/gk20a/sw_bundle_init.bin");
>> +MODULE_FIRMWARE("nvidia/gk20a/sw_ctx.bin");
>> +MODULE_FIRMWARE("nvidia/gk20a/sw_method_init.bin");
>> +MODULE_FIRMWARE("nvidia/gk20a/sw_nonctx.bin");
>> +#endif
>> --
>> 2.4.3
>>
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Re: [Nouveau] [PATCH 1/2] nouveau: arm: Add MODULE_FIRMWARE for gk20a

2015-09-18 Thread Alexandre Courbot
On Sat, Sep 19, 2015 at 3:17 AM, Ben Skeggs  wrote:
> On 19 September 2015 at 01:52, Alexandre Courbot  wrote:
>> On Wed, Sep 9, 2015 at 11:04 PM, Nicolas Chauvet  wrote:
>>> This patch is needed by initramfs tools to detect
>>> the required firmware files for the module.
>>>
>>> This patch tests for NOUVEAU_PLATFORM_DRIVER and either
>>> TEGRA_124_SOC or TEGRA_132_SOC for the firmwares related to
>>> the Tegra K1 generation.
>>
>> I think you should send this to the Nouveau tree, especially since the
>> kernel tree probably predates the big refactoring that Nouveau has
>> undergone.
>>
>> I also wonder whether these MODULE_FIRMWARE() statements could not be
>> placed in a more appropriate place, like nouveau_platform.c? This
>> would allow you to get rid of the test for
>> CONFIG_NOUVEAU_PLATFORM_DRIVER.
> Is there any need to be conditional at all?  For dGPUs we're going to
> have to have them all unconditional anyway, as we have know way of
> knowing which GPU it's going to be used with.

For dGPU there is indeed probably no use to make it conditional. But
do we really want to include the Tegra-specific firmwares on x86
initramsfs?
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[Nouveau] PWM-based voltage management input clock

2015-09-18 Thread Martin Peres

Hello,

We recently reverse engineered PWM-based voltage management but found an 
odity in the input clock frequency for the PWM controller. It seems like 
RM is assuming an input clock of 27.648 MHz instead of the actual 27MHz 
crystal found on the board.


I thus have the following questions:
 - Is it a fixed value hardcoded in RM? (Current way it is done in Nouveau)
 - Should we use crystal_MHz * 1.024?

I could spend some time hooking up my osciloscope to the VR to check if 
it is a bringup issue but it would not help Nouveau much as we need to 
reproduce the behaviour of RM anyway since this is the only validated 
configuration.


Thanks in advance,
Martin

PS: The registers for this PWM controller are 0x20340 and 0x20344.
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Re: [Nouveau] PWM-based voltage management input clock

2015-09-18 Thread Andy Ritger
Thanks, Martin.  I'll try to follow up on this next week and get you an answer. 
 What GPUs have you observed this on?


On Fri, Sep 18, 2015 at 11:13:53PM +0300, Martin Peres wrote:
> Hello,
> 
> We recently reverse engineered PWM-based voltage management but found an
> odity in the input clock frequency for the PWM controller. It seems like RM
> is assuming an input clock of 27.648 MHz instead of the actual 27MHz crystal
> found on the board.
> 
> I thus have the following questions:
>  - Is it a fixed value hardcoded in RM? (Current way it is done in Nouveau)
>  - Should we use crystal_MHz * 1.024?
> 
> I could spend some time hooking up my osciloscope to the VR to check if it
> is a bringup issue but it would not help Nouveau much as we need to
> reproduce the behaviour of RM anyway since this is the only validated
> configuration.
> 
> Thanks in advance,
> Martin
> 
> PS: The registers for this PWM controller are 0x20340 and 0x20344.
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[Nouveau] [Bug 91738] [NV117] NULL deref in nvkm_i2c_try_acquire_pad, kernel 4.1

2015-09-18 Thread bugzilla-daemon
https://bugs.freedesktop.org/show_bug.cgi?id=91738

--- Comment #16 from ryanpcmcquen  ---
Ilia, should I change the status of this bug?

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