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Add simd_config.h and HAVE_SIMD() selector

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We need to select which SIMD variable to check based on the compilation
target: HAVE_KERNEL_xxx for the Linux kernel, HAVE_TOOLCHAIN_xxx for
other platforms.

This adds a HAVE_SIMD() macro returns the right result depending on the
definedness or value of the variable for this target.

The macro is in simd_config.h, which is forcibly included in every
compiler call (like zfs_config.h), to ensure that it can be used
directly without further includes.

Sponsored-by: TrueNAS
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <rob.norris@truenas.com>
Closes #18285
This commit is contained in:
Rob Norris
2026-03-05 10:23:30 +11:00
committed by Brian Behlendorf
parent 35f74f84e6
commit c329530e6b
5 changed files with 111 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/Kbuild.in
+2
View File
@@ -11,6 +11,7 @@ zfs_include = @abs_top_srcdir@/include
icp_include = @abs_srcdir@/icp/include
zstd_include = @abs_srcdir@/zstd/include
ZFS_MODULE_CFLAGS += -include @abs_top_builddir@/zfs_config.h
ZFS_MODULE_CFLAGS += -include $(zfs_include)/sys/simd_config.h
ZFS_MODULE_CFLAGS += -I@abs_top_builddir@/include
src = @abs_srcdir@
obj = @abs_builddir@
@@ -19,6 +20,7 @@ zfs_include = $(srctree)/include/zfs
icp_include = $(src)/icp/include
zstd_include = $(src)/zstd/include
ZFS_MODULE_CFLAGS += -include $(zfs_include)/zfs_config.h
ZFS_MODULE_CFLAGS += -include $(zfs_include)/sys/simd_config.h
endif
ZFS_MODULE_CFLAGS += -I$(zfs_include)/os/linux/kernel
module/Makefile.bsd
+5 -2
View File
@@ -38,6 +38,7 @@ CFLAGS+= -I${INCDIR}/os/freebsd
CFLAGS+= -I${INCDIR}/os/freebsd/spl
CFLAGS+= -I${INCDIR}/os/freebsd/zfs
CFLAGS+= -I${SRCDIR}/zstd/include
CFLAGS+= -include ${INCDIR}/sys/simd_config.h
CFLAGS+= -include ${INCDIR}/os/freebsd/spl/sys/ccompile.h
CFLAGS+= -I${.CURDIR}
@@ -46,8 +47,10 @@ CFLAGS+= -D__KERNEL__ -DFREEBSD_NAMECACHE -DBUILDING_ZFS -D__BSD_VISIBLE=1 \
-D_SYS_VMEM_H_ -DKDTRACE_HOOKS -DCOMPAT_FREEBSD11
.if ${MACHINE_ARCH} == "amd64"
CFLAGS+= -D__x86_64 -DHAVE_SSE2 -DHAVE_SSSE3 -DHAVE_SSE4_1 \
-DHAVE_AVX -DHAVE_AVX2 -DHAVE_AVX512F -DHAVE_AVX512VL -DHAVE_AVX512BW
CFLAGS+= -D__x86_64 -DHAVE_TOOLCHAIN_SSE2 -DHAVE_TOOLCHAIN_SSSE3 \
-DHAVE_TOOLCHAIN_SSE4_1 -DHAVE_TOOLCHAIN_AVX -DHAVE_TOOLCHAIN_AVX2 \
-DHAVE_TOOLCHAIN_AVX512F -DHAVE_TOOLCHAIN_AVX512VL \
-DHAVE_TOOLCHAIN_AVX512BW
.endif
.if defined(WITH_DEBUG) && ${WITH_DEBUG} == "true"