This is a note to let you know that I've just added the patch titled
drm/amd/display: Increase frame size limit for display_mode_vba_util_32.o
to the 6.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amd-display-increase-frame-size-limit-for-displa.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 9f89e36c886224b49c9336de375ac07940178a37
Author: Guenter Roeck <linux@xxxxxxxxxxxx>
Date: Thu Oct 13 11:25:23 2022 -0700
drm/amd/display: Increase frame size limit for display_mode_vba_util_32.o
[ Upstream commit 8a70b2d89ea3f2dc1449f0634ca6befb41472f24 ]
Building 32-bit images may fail with the following error.
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_util_32.c:
In function ‘dml32_UseMinimumDCFCLK’:
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_util_32.c:3142:1:
error: the frame size of 1096 bytes is larger than 1024 bytes
This is seen when building i386:allmodconfig with any of the following
compilers.
gcc (Debian 12.2.0-3) 12.2.0
gcc (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0
The problem is not seen if the compiler supports GCC_PLUGIN_LATENT_ENTROPY
because in that case CONFIG_FRAME_WARN is already set to 2048 even for
32-bit builds.
dml32_UseMinimumDCFCLK() was introduced with commit dda4fb85e433
("drm/amd/display: DML changes for DCN32/321"). It declares a large
number of local variables. Increase the frame size for the affected
file to 2048, similar to other files in the same directory, to enable
32-bit build tests with affected compilers.
Fixes: dda4fb85e433 ("drm/amd/display: DML changes for DCN32/321")
Cc: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
Reported-by: Łukasz Bartosik <ukaszb@xxxxxxxxxx>
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/display/dc/dml/Makefile b/drivers/gpu/drm/amd/display/dc/dml/Makefile
index cb81ed2fbd53..d0c6cf61c676 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile
@@ -77,7 +77,7 @@ CFLAGS_$(AMDDALPATH)/dc/dml/dcn30/dcn30_fpu.o := $(dml_ccflags)
CFLAGS_$(AMDDALPATH)/dc/dml/dcn32/dcn32_fpu.o := $(dml_ccflags)
CFLAGS_$(AMDDALPATH)/dc/dml/dcn32/display_mode_vba_32.o := $(dml_ccflags) $(frame_warn_flag)
CFLAGS_$(AMDDALPATH)/dc/dml/dcn32/display_rq_dlg_calc_32.o := $(dml_ccflags)
-CFLAGS_$(AMDDALPATH)/dc/dml/dcn32/display_mode_vba_util_32.o := $(dml_ccflags)
+CFLAGS_$(AMDDALPATH)/dc/dml/dcn32/display_mode_vba_util_32.o := $(dml_ccflags) $(frame_warn_flag)
CFLAGS_$(AMDDALPATH)/dc/dml/dcn321/dcn321_fpu.o := $(dml_ccflags)
CFLAGS_$(AMDDALPATH)/dc/dml/dcn31/dcn31_fpu.o := $(dml_ccflags)
CFLAGS_$(AMDDALPATH)/dc/dml/dcn301/dcn301_fpu.o := $(dml_ccflags)
