On Fri, Aug 26, 2022 at 10:31:34AM -0400, Alex Deucher wrote:
> On Thu, Aug 25, 2022 at 6:34 PM Nathan Chancellor wrote:
> >
> > Hi AMD folks,
> >
> > Top posting because it might not have been obvious but I was looking for
> > your feedback on this message (which can be viewed on lore.kernel.org
On Thu, Aug 25, 2022 at 6:34 PM Nathan Chancellor wrote:
>
> Hi AMD folks,
>
> Top posting because it might not have been obvious but I was looking for
> your feedback on this message (which can be viewed on lore.kernel.org if
> you do not have the original [1]) so that we can try to get this fixe
Hi AMD folks,
Top posting because it might not have been obvious but I was looking for
your feedback on this message (which can be viewed on lore.kernel.org if
you do not have the original [1]) so that we can try to get this fixed
in some way for 6.0/6.1. If my approach is not welcome, please cons
Hi Arnd,
Doubling back around to this now since I think this is the only thing
breaking x86_64 allmodconfig with clang 11 through 15.
On Fri, Aug 05, 2022 at 09:32:13PM +0200, Arnd Bergmann wrote:
> On Fri, Aug 5, 2022 at 8:02 PM Nathan Chancellor wrote:
> > On Fri, Aug 05, 2022 at 06:16:45PM +0
On Sun, Aug 7, 2022 at 10:36 AM David Laight wrote:
>
> Or just shoot the software engineer who thinks 100 arguments
> is sane. :-)
I suspect the issue is that it's not primarily a software engineer who
wrote that code.
Hardware people writing code are about as scary as software engineers
with a
From: Arnd Bergmann
> Sent: 05 August 2022 20:32
...
> One thing to try would be to condense a function call like
>
> dml32_CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport(
>
...
> /* more arguments */);
>
> into calling conventions that take a po
On Fri, Aug 5, 2022 at 8:02 PM Nathan Chancellor wrote:
> On Fri, Aug 05, 2022 at 06:16:45PM +0200, Arnd Bergmann wrote:
> > On Fri, Aug 5, 2022 at 5:32 PM Harry Wentland
> > wrote:
> > While splitting out sub-functions can help reduce the maximum stack
> > usage, it seems that in this case it m
On Fri, Aug 05, 2022 at 06:16:45PM +0200, Arnd Bergmann wrote:
> On Fri, Aug 5, 2022 at 5:32 PM Harry Wentland wrote:
> > > I do notice that these files build with a non-configurable
> > > -Wframe-large-than value:
> > >
> > > $ rg frame_warn_flag drivers/gpu/drm/amd/display/dc/dml/Makefile
> > >
On Fri, Aug 5, 2022 at 5:32 PM Harry Wentland wrote:
> > I do notice that these files build with a non-configurable
> > -Wframe-large-than value:
> >
> > $ rg frame_warn_flag drivers/gpu/drm/amd/display/dc/dml/Makefile
> > 54:frame_warn_flag := -Wframe-larger-than=2048
>
> Tbh, I was looking at th
On 2022-08-04 16:43, Nathan Chancellor wrote:
> On Thu, Aug 04, 2022 at 09:24:41PM +0200, Arnd Bergmann wrote:
>> On Thu, Aug 4, 2022 at 8:52 PM Linus Torvalds
>> wrote:
>>>
>>> On Thu, Aug 4, 2022 at 11:37 AM Sudip Mukherjee (Codethink)
>>> wrote:cov_trace_cmp
git bisect points to 3
...
> * NOTE:
> * This file is gcc-parsable HW gospel, coming straight from HW engineers.
I never trust hardware engineers to write code :-)
(Although at the moment they trust me to write VHDL...)
David
-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT,
On Thu, Aug 04, 2022 at 02:59:01PM -0700, Linus Torvalds wrote:
> On Thu, Aug 4, 2022 at 1:43 PM Nathan Chancellor wrote:
> >
> > I do note that commit 1b54a0121dba ("drm/amd/display: Reduce stack size
> > in the mode support function") did have a workaround for GCC. It appears
> > clang will stil
On Thu, Aug 4, 2022 at 1:43 PM Nathan Chancellor wrote:
>
> I do note that commit 1b54a0121dba ("drm/amd/display: Reduce stack size
> in the mode support function") did have a workaround for GCC. It appears
> clang will still inline mode_support_configuration(). If I mark it as
> 'noinline', the w
On Thu, Aug 04, 2022 at 09:24:41PM +0200, Arnd Bergmann wrote:
> On Thu, Aug 4, 2022 at 8:52 PM Linus Torvalds
> wrote:
> >
> > On Thu, Aug 4, 2022 at 11:37 AM Sudip Mukherjee (Codethink)
> > wrote:cov_trace_cmp
> > >
> > > git bisect points to 3876a8b5e241 ("drm/amd/display: Enable building new
On Thu, Aug 4, 2022 at 8:52 PM Linus Torvalds
wrote:
>
> On Thu, Aug 4, 2022 at 11:37 AM Sudip Mukherjee (Codethink)
> wrote:cov_trace_cmp
> >
> > git bisect points to 3876a8b5e241 ("drm/amd/display: Enable building new
> > display engine with KCOV enabled").
>
> Ahh. So that was presumably why
On Thu, Aug 4, 2022 at 11:37 AM Sudip Mukherjee (Codethink)
wrote:
>
> git bisect points to 3876a8b5e241 ("drm/amd/display: Enable building new
> display engine with KCOV enabled").
Ahh. So that was presumably why it was disabled before - because it
presumably does disgusting things that make KC
Hi All,
The latest mainline kernel branch fails to build for x86_64 allmodconfig
with clang. The errors are:
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn30/display_mode_vba_30.c:3596:6:
error: stack frame size (2216) exceeds limit (2048) in
'dml30_ModeSupportAndSystemConfigurationFull' [-We
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