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module: freebsd: fix aarch64 fpu handling

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Just like x86, aarch64 needs to use the fpu_kern(9) API around FPU
usage, otherwise we panic promptly at boot as soon as ZFS attempts to
do checksum benchmarking.

Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de>
Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Closes #14715
This commit is contained in:
Kyle Evans 2023-04-07 00:40:34 +00:00 committed by Brian Behlendorf
parent dee77f45d0
commit d0cbd9feaf
1 changed files with 12 additions and 2 deletions
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14
include/os/freebsd/spl/sys/simd_aarch64.h
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@ -44,13 +44,23 @@
#define _FREEBSD_SIMD_AARCH64_H
#include <sys/types.h>
#include <sys/ucontext.h>
#include <machine/elf.h>
#include <machine/fpu.h>
#include <machine/md_var.h>
#include <machine/pcb.h>
#define kfpu_allowed() 1
#define kfpu_initialize(tsk) do {} while (0)
#define kfpu_begin() do {} while (0)
#define kfpu_end() do {} while (0)
#define kfpu_begin() do { \
if (__predict_false(!is_fpu_kern_thread(0))) \
fpu_kern_enter(curthread, NULL, FPU_KERN_NOCTX); \
} while (0)
#define kfpu_end() do { \
if (__predict_false(curthread->td_pcb->pcb_fpflags & PCB_FP_NOSAVE)) \
fpu_kern_leave(curthread, NULL); \
} while (0)
#define kfpu_init() (0)
#define kfpu_fini() do {} while (0)