diff options
author | Linus Torvalds | 2024-05-22 18:59:29 -0700 |
---|---|---|
committer | Linus Torvalds | 2024-05-22 18:59:29 -0700 |
commit | c760b3725e52403dc1b28644fb09c47a83cacea6 (patch) | |
tree | 652d83ee1ccf1ea723ba68dde69c03d64bd49fa3 /arch/loongarch | |
parent | 5c6f4d68e2aca67e425b7227369ec9fde8adfb6d (diff) | |
parent | db3e24a02e29b507c24c0adb4d22914c65dab763 (diff) |
Merge tag 'mm-nonmm-stable-2024-05-22-17-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull more non-mm updates from Andrew Morton:
- A series ("kbuild: enable more warnings by default") from Arnd
Bergmann which enables a number of additional build-time warnings. We
fixed all the fallout which we could find, there may still be a few
stragglers.
- Samuel Holland has developed the series "Unified cross-architecture
kernel-mode FPU API". This does a lot of consolidation of
per-architecture kernel-mode FPU usage and enables the use of newer
AMD GPUs on RISC-V.
- Tao Su has fixed some selftests build warnings in the series
"Selftests: Fix compilation warnings due to missing _GNU_SOURCE
definition".
- This pull also includes a nilfs2 fixup from Ryusuke Konishi.
* tag 'mm-nonmm-stable-2024-05-22-17-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (23 commits)
nilfs2: make block erasure safe in nilfs_finish_roll_forward()
selftests/harness: use 1024 in place of LINE_MAX
Revert "selftests/harness: remove use of LINE_MAX"
selftests/fpu: allow building on other architectures
selftests/fpu: move FP code to a separate translation unit
drm/amd/display: use ARCH_HAS_KERNEL_FPU_SUPPORT
drm/amd/display: only use hard-float, not altivec on powerpc
riscv: add support for kernel-mode FPU
x86: implement ARCH_HAS_KERNEL_FPU_SUPPORT
powerpc: implement ARCH_HAS_KERNEL_FPU_SUPPORT
LoongArch: implement ARCH_HAS_KERNEL_FPU_SUPPORT
lib/raid6: use CC_FLAGS_FPU for NEON CFLAGS
arm64: crypto: use CC_FLAGS_FPU for NEON CFLAGS
arm64: implement ARCH_HAS_KERNEL_FPU_SUPPORT
ARM: crypto: use CC_FLAGS_FPU for NEON CFLAGS
ARM: implement ARCH_HAS_KERNEL_FPU_SUPPORT
arch: add ARCH_HAS_KERNEL_FPU_SUPPORT
x86/fpu: fix asm/fpu/types.h include guard
kbuild: enable -Wcast-function-type-strict unconditionally
kbuild: enable -Wformat-truncation on clang
...
Diffstat (limited to 'arch/loongarch')
-rw-r--r-- | arch/loongarch/Kconfig | 1 | ||||
-rw-r--r-- | arch/loongarch/Makefile | 5 | ||||
-rw-r--r-- | arch/loongarch/include/asm/fpu.h | 1 |
3 files changed, 6 insertions, 1 deletions
diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig index a2774ad5e916..e38139c576ee 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -19,6 +19,7 @@ config LOONGARCH select ARCH_HAS_FAST_MULTIPLIER select ARCH_HAS_FORTIFY_SOURCE select ARCH_HAS_KCOV + select ARCH_HAS_KERNEL_FPU_SUPPORT if CPU_HAS_FPU select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE select ARCH_HAS_PTE_SPECIAL diff --git a/arch/loongarch/Makefile b/arch/loongarch/Makefile index 4347915721bd..8674e7e24c4a 100644 --- a/arch/loongarch/Makefile +++ b/arch/loongarch/Makefile @@ -26,6 +26,9 @@ endif 32bit-emul = elf32loongarch 64bit-emul = elf64loongarch +CC_FLAGS_FPU := -mfpu=64 +CC_FLAGS_NO_FPU := -msoft-float + ifdef CONFIG_UNWINDER_ORC orc_hash_h := arch/$(SRCARCH)/include/generated/asm/orc_hash.h orc_hash_sh := $(srctree)/scripts/orc_hash.sh @@ -59,7 +62,7 @@ ld-emul = $(64bit-emul) cflags-y += -mabi=lp64s endif -cflags-y += -pipe -msoft-float +cflags-y += -pipe $(CC_FLAGS_NO_FPU) LDFLAGS_vmlinux += -static -n -nostdlib # When the assembler supports explicit relocation hint, we must use it. diff --git a/arch/loongarch/include/asm/fpu.h b/arch/loongarch/include/asm/fpu.h index c2d8962fda00..3177674228f8 100644 --- a/arch/loongarch/include/asm/fpu.h +++ b/arch/loongarch/include/asm/fpu.h @@ -21,6 +21,7 @@ struct sigcontext; +#define kernel_fpu_available() cpu_has_fpu extern void kernel_fpu_begin(void); extern void kernel_fpu_end(void); |