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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-07-29 09:57:07 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-07-29 09:57:07 -0700 |
| commit | 9d928d9b78beec5d4b8afde9c144919b979685f2 (patch) | |
| tree | fcb32435cea66dd52b48c6ba3169c57897df781a | |
| parent | 6e2c0490769ef8a95b61304389116ccc85c53e12 (diff) | |
| parent | c653c591789b3acfa4bf6ae45d5af4f330e50a91 (diff) | |
| download | lwn-9d928d9b78beec5d4b8afde9c144919b979685f2.tar.gz lwn-9d928d9b78beec5d4b8afde9c144919b979685f2.zip | |
Merge tag 'powerpc-5.19-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Re-enable the new amdgpu display engine for powerpc, as long as the
compiler is correctly configured.
- Disable stack variable initialisation in prom_init to fix GCC 12
allmodconfig.
Thanks to Dan Horák and Sudip Mukherjee.
* tag 'powerpc-5.19-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
drm/amdgpu: Re-enable DCN for 64-bit powerpc
powerpc/64s: Disable stack variable initialisation for prom_init
| -rw-r--r-- | arch/powerpc/Kconfig | 4 | ||||
| -rw-r--r-- | arch/powerpc/kernel/Makefile | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/Kconfig | 2 |
3 files changed, 6 insertions, 1 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index c235648fae23..4d8f26c1399b 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -282,6 +282,10 @@ config PPC # Please keep this list sorted alphabetically. # +config PPC_LONG_DOUBLE_128 + depends on PPC64 + def_bool $(success,test "$(shell,echo __LONG_DOUBLE_128__ | $(CC) -E -P -)" = 1) + config PPC_BARRIER_NOSPEC bool default y diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index f91f0f29a566..c8cf924bf9c0 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -20,6 +20,7 @@ CFLAGS_prom.o += $(DISABLE_LATENT_ENTROPY_PLUGIN) CFLAGS_prom_init.o += -fno-stack-protector CFLAGS_prom_init.o += -DDISABLE_BRANCH_PROFILING CFLAGS_prom_init.o += -ffreestanding +CFLAGS_prom_init.o += $(call cc-option, -ftrivial-auto-var-init=uninitialized) ifdef CONFIG_FUNCTION_TRACER # Do not trace early boot code diff --git a/drivers/gpu/drm/amd/display/Kconfig b/drivers/gpu/drm/amd/display/Kconfig index 0ba0598eba20..ec6771e87e73 100644 --- a/drivers/gpu/drm/amd/display/Kconfig +++ b/drivers/gpu/drm/amd/display/Kconfig @@ -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 || PPC_LONG_DOUBLE_128) && !(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 |