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authorDave Airlie <airlied@redhat.com>2019-11-14 05:53:10 +1000
committerDave Airlie <airlied@redhat.com>2019-11-14 05:53:10 +1000
commit77e0723bd27f830d0903225372aa778fe2975648 (patch)
tree4c035783e014b3a0ac9174390f88dc75150533e4 /drivers/gpu/drm/amd/display/dc/dml/Makefile
parentMerge tag 'drm-misc-next-fixes-2019-11-06' of git://anongit.freedesktop.org/drm/drm-misc into drm-next (diff)
parentLinux 5.4-rc7 (diff)
downloadlinux-dev-77e0723bd27f830d0903225372aa778fe2975648.tar.xz
linux-dev-77e0723bd27f830d0903225372aa778fe2975648.zip
Merge v5.4-rc7 into drm-next
We have the i915 security fixes to backmerge, but first let's clear the decks for other drivers to avoid a bigger mess. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dml/Makefile')
-rw-r--r--drivers/gpu/drm/amd/display/dc/dml/Makefile19
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/Makefile b/drivers/gpu/drm/amd/display/dc/dml/Makefile
index 5b2a65b42403..8df251626e22 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile
@@ -24,15 +24,20 @@
# It provides the general basic services required by other DAL
# subcomponents.
-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
-dml_ccflags := -mhard-float -msse $(cc_stack_align)
+ifdef CONFIG_CC_IS_GCC
+ifeq ($(call cc-ifversion, -lt, 0701, y), y)
+IS_OLD_GCC = 1
+endif
+endif
-ifdef CONFIG_CC_IS_CLANG
+ifdef IS_OLD_GCC
+# Stack alignment mismatch, proceed with caution.
+# GCC < 7.1 cannot compile code using `double` and -mpreferred-stack-boundary=3
+# (8B stack alignment).
+dml_ccflags += -mpreferred-stack-boundary=4
+else
dml_ccflags += -msse2
endif