From Ard: "Simply disabling -mgeneral-regs-only left and right is risky, given that the standard AArch64 ABI permits the use of FP/SIMD registers anywhere, and GCC is known to use SIMD registers for spilling, and may invent other uses of the FP/SIMD register file that have nothing to do with the floating point code in question. Note that putting kernel_neon_begin() and kernel_neon_end() around the code that does use FP is not sufficient here, the problem is in all the other code that may be emitted with references to SIMD registers in it. So the only way to do this properly is to put all floating point code in a separate compilation unit, and only compile that unit with -mgeneral-regs-only." Disable support until the code can be properly refactored to support this properly on aarch64. Acked-by: Will Deacon <will@kernel.org> Reported-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
41 lines
1.1 KiB
Text
41 lines
1.1 KiB
Text
# SPDX-License-Identifier: MIT
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menu "Display Engine Configuration"
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depends on DRM && DRM_AMDGPU
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config DRM_AMD_DC
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bool "AMD DC - Enable new display engine"
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default y
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select SND_HDA_COMPONENT if SND_HDA_CORE
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select DRM_AMD_DC_DCN if (X86 || PPC64) && !(KCOV_INSTRUMENT_ALL && KCOV_ENABLE_COMPARISONS)
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help
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Choose this option if you want to use the new display engine
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support for AMDGPU. This adds required support for Vega and
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Raven ASICs.
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config DRM_AMD_DC_DCN
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def_bool n
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help
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Raven, Navi, and newer family support for display engine
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config DRM_AMD_DC_HDCP
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bool "Enable HDCP support in DC"
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depends on DRM_AMD_DC
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help
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Choose this option if you want to support HDCP authentication.
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config DRM_AMD_DC_SI
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bool "AMD DC support for Southern Islands ASICs"
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default n
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help
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Choose this option to enable new AMD DC support for SI asics
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by default. This includes Tahiti, Pitcairn, Cape Verde, Oland.
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Hainan is not supported by AMD DC and it has no physical DCE6.
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config DEBUG_KERNEL_DC
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bool "Enable kgdb break in DC"
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depends on DRM_AMD_DC
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depends on KGDB
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help
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Choose this option if you want to hit kdgb_break in assert.
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endmenu
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