linux-kernel - [PATCH] drm/amdgpu/dc: Really fix DCN3.1 Makefile for PPC64

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Date:   Wed, 23 Jun 2021 12:30:39 +0200
From:   Michal Suchanek <msuchanek@...e.de>
To:     Nicholas Kazlauskas <nicholas.kazlauskas@....com>,
        Alex Deucher <alexander.deucher@....com>
Cc:     Michal Suchanek <msuchanek@...e.de>,
        Harry Wentland <harry.wentland@....com>,
        Leo Li <sunpeng.li@....com>,
        Christian König <christian.koenig@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, Arnd Bergmann <arnd@...db.de>,
        Bhawanpreet Lakha <Bhawanpreet.Lakha@....com>,
        Will Deacon <will@...nel.org>, Huang Rui <ray.huang@....com>,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] drm/amdgpu/dc: Really fix DCN3.1 Makefile for PPC64

Also copy over the part that makes old gcc handling cross-platform.

Fixes: df7a1658f257 ("drm/amdgpu/dc: fix DCN3.1 Makefile for PPC64")
Fixes: 926d6972efb6 ("drm/amd/display: Add DCN3.1 blocks to the DC Makefile")
Signed-off-by: Michal Suchanek <msuchanek@...e.de>
---
The fact that the old gcc handling triggers on gcc 10 and 11 is another
story I don't want to delve into.
---
 drivers/gpu/drm/amd/display/dc/dcn31/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/Makefile b/drivers/gpu/drm/amd/display/dc/dcn31/Makefile
index 5dcdc5a858fe..4bab97acb155 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/Makefile
@@ -28,6 +28,7 @@ endif
 CFLAGS_$(AMDDALPATH)/dc/dcn31/dcn31_resource.o += -mhard-float
 endif
 
+ifdef CONFIG_X86
 ifdef IS_OLD_GCC
 # Stack alignment mismatch, proceed with caution.
 # GCC < 7.1 cannot compile code using `double` and -mpreferred-stack-boundary=3
@@ -36,6 +37,7 @@ CFLAGS_$(AMDDALPATH)/dc/dcn31/dcn31_resource.o += -mpreferred-stack-boundary=4
 else
 CFLAGS_$(AMDDALPATH)/dc/dcn31/dcn31_resource.o += -msse2
 endif
+endif
 
 AMD_DAL_DCN31 = $(addprefix $(AMDDALPATH)/dc/dcn31/,$(DCN31))
 
-- 
2.26.2