Am 01.06.2017 um 06:15 schrieb zhoucm1:
On 2017年05月31日 23:52, Harry Wentland wrote:
DCN bw calcs currently rely on the following gcc options:
-mhard-float -msse -mpreferred-stack-boundary=4
We probably shouldn't really try building this on architectures
other than x86.
Does it mean our card including DCN cannot run on other platform like
ARM?
Yeah, which is a bit problematic cause we need to support both ARM and
PowerPC with the driver as well.
Regards,
Christian.
Regards,
David Zhou
Change-Id: I63d214b2f6fe9b3fc0d59bd00563e0543f0baa8c
CC: Alex Deucher <[email protected]>
CC: Christian König <[email protected]>
CC: Michel Dänzer <[email protected]>
CC: Tony Cheng <[email protected]>
CC: Dmytro Laktyushkin <[email protected]>
Signed-off-by: Harry Wentland <[email protected]>
Reviewed-by: Tony Cheng <[email protected]>
Acked-by: Harry Wentland <[email protected]>
---
drivers/gpu/drm/amd/display/Kconfig | 2 +-
drivers/gpu/drm/amd/display/dc/calcs/Makefile | 2 ++
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/Kconfig
b/drivers/gpu/drm/amd/display/Kconfig
index 2b8d77cebe03..62ea9f600374 100644
--- a/drivers/gpu/drm/amd/display/Kconfig
+++ b/drivers/gpu/drm/amd/display/Kconfig
@@ -11,7 +11,7 @@ config DRM_AMD_DC
config DRM_AMD_DC_DCN1_0
bool "DCN 1.0 Raven family"
- depends on DRM_AMD_DC
+ depends on DRM_AMD_DC && X86
help
Choose this option if you want to have
RV family for display engine
diff --git a/drivers/gpu/drm/amd/display/dc/calcs/Makefile
b/drivers/gpu/drm/amd/display/dc/calcs/Makefile
index a095472bf4b5..2e4ce0918c02 100644
--- a/drivers/gpu/drm/amd/display/dc/calcs/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/calcs/Makefile
@@ -3,9 +3,11 @@
# It calculates Bandwidth and Watermarks values for HW programming
#
+ifeq ($(ARCH),x86)
CFLAGS_dcn_calcs.o := -mhard-float -msse -mpreferred-stack-boundary=4
CFLAGS_dcn_calc_auto.o := -mhard-float -msse
-mpreferred-stack-boundary=4
CFLAGS_dcn_calc_math.o := -mhard-float -msse
-mpreferred-stack-boundary=4
+endif
BW_CALCS = dce_calcs.o bw_fixed.o custom_float.o
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