diff options
| author | Matthias Kaehlcke <mka@chromium.org> | 2018-02-08 12:53:15 -0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-02-19 14:19:51 -0500 |
| commit | 4769278e5c7fd2be445e4a34f834d40475fcb0ce (patch) | |
| tree | 6f29c2bf236b60d2adef53b9bcea91494ba3507b /drivers/gpu/drm/amd/display/dc/dml | |
| parent | 37172013fa2e527735ec9eda51a11cfea3af0ff1 (diff) | |
amdgpu/dc/dml: Support clang option for stack alignment
DML 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.
Reported-by: Guenter Roeck <groeck@chromium.org>
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/dml')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/Makefile | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/Makefile b/drivers/gpu/drm/amd/display/dc/dml/Makefile index dca6ea7fc02b..0271043cf6a2 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/Makefile +++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile @@ -24,7 +24,13 @@ # It provides the general basic services required by other DAL # subcomponents. -dml_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 + +dml_ccflags := -mhard-float -msse $(cc_stack_align) CFLAGS_display_mode_vba.o := $(dml_ccflags) CFLAGS_display_mode_lib.o := $(dml_ccflags) |