[PATCH] drm/amd/display: Increase frame-larger-than warning limit
Palmer Dabbelt
palmer at rivosinc.com
Tue Jun 4 16:04:23 UTC 2024
On Mon, 03 Jun 2024 15:29:48 PDT (-0700), nathan at kernel.org wrote:
> Hi Palmer,
>
> On Thu, May 30, 2024 at 07:57:42AM -0700, Palmer Dabbelt wrote:
>> From: Palmer Dabbelt <palmer at rivosinc.com>
>>
>> I get a handful of build errors along the lines of
>>
>> linux/drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_32.c:58:13: error: stack frame size (2352) exceeds limit (2048) in 'DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerformanceCalculation' [-Werror,-Wframe-larger-than]
>> static void DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerformanceCalculation(
>> ^
>> linux/drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_32.c:1724:6: error: stack frame size (2096) exceeds limit (2048) in 'dml32_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than]
>> void dml32_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib)
>> ^
>
> Judging from the message, this is clang/LLVM? What version?
Yes, LLVM. Looks like I'm on 16.0.6. Probably time for an update, so
I'll give it a shot.
> I assume
> this showed up in 6.10-rc1 because of commit 77acc6b55ae4 ("riscv: add
> support for kernel-mode FPU"), which allows this driver to be built for
> RISC-V.
Seems reasonable. This didn't show up until post-merge, not 100% sure
why. I didn't really dig any farther.
> Is this allmodconfig or some other configuration?
IIRC both "allmodconfig" and "allyesconfig" show it, but I don't have a
build tree sitting around to be 100% sure.
>> as of 6.10-rc1.
>>
>> Signed-off-by: Palmer Dabbelt <palmer at rivosinc.com>
>> ---
>> drivers/gpu/drm/amd/display/dc/dml/Makefile | 4 ++--
>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/amd/display/dc/dml/Makefile b/drivers/gpu/drm/amd/display/dc/dml/Makefile
>> index c4a5efd2dda5..b2bd72e63734 100644
>> --- a/drivers/gpu/drm/amd/display/dc/dml/Makefile
>> +++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile
>> @@ -62,9 +62,9 @@ endif
>>
>> ifneq ($(CONFIG_FRAME_WARN),0)
>> ifeq ($(filter y,$(CONFIG_KASAN)$(CONFIG_KCSAN)),y)
>> -frame_warn_flag := -Wframe-larger-than=3072
>> +frame_warn_flag := -Wframe-larger-than=4096
>> else
>> -frame_warn_flag := -Wframe-larger-than=2048
>> +frame_warn_flag := -Wframe-larger-than=3072
>> endif
>> endif
>>
>> --
>> 2.45.1
>>
More information about the amd-gfx
mailing list