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amdgpu: Enable initial DCN support on POWER

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DCN requires floating point support to operate.  Add the appropriate
x86/ppc64 guards and FPU / AltiVec / VSX context switches to DCN.

Note that the current DC20 code doesn't contain all required FPU
wrappers on x86 or POWER, so this patch is insufficient to fully
enable DC20 on POWER.

v2: s/X86_64/X86/g to retain previous behavior.

Signed-off-by: Timothy Pearson <tpearson@raptorengineering.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Timothy Pearson
2019-12-07 16:47:46 -06:00
committed by Alex Deucher
parent 6ca3928da6
commit 16a9dea110
8 changed files with 73 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/Kconfig
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@@ -6,7 +6,7 @@ config DRM_AMD_DC
bool "AMD DC - Enable new display engine"
default y
select SND_HDA_COMPONENT if SND_HDA_CORE
select DRM_AMD_DC_DCN if X86 && !(KCOV_INSTRUMENT_ALL && KCOV_ENABLE_COMPARISONS)
select DRM_AMD_DC_DCN if (X86 || PPC64) && !(KCOV_INSTRUMENT_ALL && KCOV_ENABLE_COMPARISONS)
help
Choose this option if you want to use the new display engine
support for AMDGPU. This adds required support for Vega and