summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/amd/display/dc/calcs/Makefile
diff options
context:
space:
mode:
authorMatthias Kaehlcke <mka@chromium.org>2018-02-08 12:53:16 -0800
committerAlex Deucher <alexander.deucher@amd.com>2018-02-19 14:19:51 -0500
commitcc32ad8f559c36ca2433d282aff690a6842a3a27 (patch)
tree27c5aa1a70799c5f731f33893163e8bfb94b4df1 /drivers/gpu/drm/amd/display/dc/calcs/Makefile
parent4769278e5c7fd2be445e4a34f834d40475fcb0ce (diff)
downloadlinux-cc32ad8f559c36ca2433d282aff690a6842a3a27.tar.gz
amdgpu/dc/calcs: Support clang option for stack alignment
calcs uses the compiler option -mpreferred-stack-boundary=4 to configure a stack alignment of 16 bytes. Clang uses the option -mstack-alignment instead, which expects as parameter the alignment in bytes, and not a power of two like -mpreferred-stack-boundary. Probe for both compiler options and use the correct one, similar to what is done in arch/x86/Makefile. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/calcs/Makefile')
-rw-r--r--drivers/gpu/drm/amd/display/dc/calcs/Makefile8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/calcs/Makefile b/drivers/gpu/drm/amd/display/dc/calcs/Makefile
index af0f452f3c9f..95f332ee3e7e 100644
--- a/drivers/gpu/drm/amd/display/dc/calcs/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/calcs/Makefile
@@ -24,7 +24,13 @@
# It calculates Bandwidth and Watermarks values for HW programming
#
-calcs_ccflags := -mhard-float -msse -mpreferred-stack-boundary=4
+ifneq ($(call cc-option, -mpreferred-stack-boundary=4),)
+ cc_stack_align := -mpreferred-stack-boundary=4
+else ifneq ($(call cc-option, -mstack-alignment=16),)
+ cc_stack_align := -mstack-alignment=16
+endif
+
+calcs_ccflags := -mhard-float -msse $(cc_stack_align)
CFLAGS_dcn_calcs.o := $(calcs_ccflags)
CFLAGS_dcn_calc_auto.o := $(calcs_ccflags)