Re: [PATCH] Revert "drm/amd/display: add -msse2 to prevent Clang from emitting libcalls to undefined SW FP routines"

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Am 29.01.19 um 19:28 schrieb Wentland, Harry:
On 2019-01-29 11:57 a.m., Alex Deucher wrote:
This reverts commit 10117450735c7a7c0858095fb46a860e7037cb9a.

Causes a crash.

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=109487
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # 4.19
Thanks for finding and reverting.

Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>

Reviewed-by: Christian König <christian.koenig@xxxxxxx>

I find it really troubling that we run into so many issues with that.

Christian.


Harry

---
  drivers/gpu/drm/amd/display/dc/calcs/Makefile | 2 +-
  drivers/gpu/drm/amd/display/dc/dml/Makefile   | 2 +-
  2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/calcs/Makefile b/drivers/gpu/drm/amd/display/dc/calcs/Makefile
index dc85a3c088af..95f332ee3e7e 100644
--- a/drivers/gpu/drm/amd/display/dc/calcs/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/calcs/Makefile
@@ -30,7 +30,7 @@ else ifneq ($(call cc-option, -mstack-alignment=16),)
  	cc_stack_align := -mstack-alignment=16
  endif
-calcs_ccflags := -mhard-float -msse -msse2 $(cc_stack_align)
+calcs_ccflags := -mhard-float -msse $(cc_stack_align)
CFLAGS_dcn_calcs.o := $(calcs_ccflags)
  CFLAGS_dcn_calc_auto.o := $(calcs_ccflags)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/Makefile b/drivers/gpu/drm/amd/display/dc/dml/Makefile
index 33c7d7588712..d97ca6528f9d 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile
@@ -30,7 +30,7 @@ else ifneq ($(call cc-option, -mstack-alignment=16),)
  	cc_stack_align := -mstack-alignment=16
  endif
-dml_ccflags := -mhard-float -msse -msse2 $(cc_stack_align)
+dml_ccflags := -mhard-float -msse $(cc_stack_align)
CFLAGS_display_mode_lib.o := $(dml_ccflags)
  CFLAGS_display_pipe_clocks.o := $(dml_ccflags)

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