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drm/amd/display: Don't build DCN1 when kcov is enabled

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DCN1 contains code that utilizes fp math. When
CONFIG_KCOV_INSTRUMENT_ALL and CONFIG_KCOV_ENABLE_COMPARISONS are
enabled, build errors are found. See this earlier patch for details:

https://lists.freedesktop.org/archives/dri-devel/2018-August/186131.html

As a short term solution, disable CONFIG_DRM_AMD_DC_DCN1_0 when
KCOV_INSTRUMENT_ALL and KCOV_ENABLE_COMPARISONS are enabled. In
addition, make it a fully derived config, taking into account
CONFIG_X86.

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Leo (Sunpeng) Li 2018-08-16 15:44:39 -04:00 committed by Alex Deucher
parent dc37a9a08d
commit 9d1d02ff36
1 changed files with 3 additions and 5 deletions
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8
drivers/gpu/drm/amd/display/Kconfig
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@ -4,18 +4,16 @@ menu "Display Engine Configuration"
config DRM_AMD_DC config DRM_AMD_DC
bool "AMD DC - Enable new display engine" bool "AMD DC - Enable new display engine"
default y default y
select DRM_AMD_DC_DCN1_0 if X86 && !(KCOV_INSTRUMENT_ALL && KCOV_ENABLE_COMPARISONS)
help help
Choose this option if you want to use the new display engine Choose this option if you want to use the new display engine
support for AMDGPU. This adds required support for Vega and support for AMDGPU. This adds required support for Vega and
Raven ASICs. Raven ASICs.
config DRM_AMD_DC_DCN1_0 config DRM_AMD_DC_DCN1_0
bool "DCN 1.0 Raven family" def_bool n
depends on DRM_AMD_DC && X86
default y
help help
Choose this option if you want to have RV family support for display engine
RV family for display engine
config DEBUG_KERNEL_DC config DEBUG_KERNEL_DC
bool "Enable kgdb break in DC" bool "Enable kgdb break in DC"