Commit 6f7cd037 authored by Samuel Holland's avatar Samuel Holland Committed by Alex Deucher
Browse files

drm/amd/display: Allow building DC with clang on RISC-V 



clang on RISC-V appears to be unaffected by the bug causing excessive
stack usage in calculate_bandwidth(). clang 16 with -fstack-usage
reports a 304 byte stack frame size with CONFIG_ARCH_RV32I, and 512
bytes with CONFIG_ARCH_RV64I.

Reviewed-by: default avatarNathan Chancellor <nathan@kernel.org>
Tested-by: default avatarNathan Chancellor <nathan@kernel.org>
Signed-off-by: default avatarSamuel Holland <samuel.holland@sifive.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent a6a69a12

drivers/gpu/drm/amd/display/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -5,7 +5,7 @@ menu "Display Engine Configuration" 
config DRM_AMD_DC

	bool "AMD DC - Enable new display engine"

	default y

	depends on BROKEN || !CC_IS_CLANG || X86_64 || SPARC64 || ARM64

	depends on BROKEN || !CC_IS_CLANG || ARM64 || RISCV || SPARC64 || X86_64

	select SND_HDA_COMPONENT if SND_HDA_CORE

	# !CC_IS_CLANG: https://github.com/ClangBuiltLinux/linux/issues/1752

	select DRM_AMD_DC_FP if (X86 || LOONGARCH || (PPC64 && ALTIVEC) || (ARM64 && KERNEL_MODE_NEON && !CC_IS_CLANG))