module: freebsd: fix aarch64 fpu handling
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
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@ -44,13 +44,23 @@
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#define _FREEBSD_SIMD_AARCH64_H
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#include <sys/types.h>
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#include <sys/ucontext.h>
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#include <machine/elf.h>
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#include <machine/fpu.h>
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#include <machine/md_var.h>
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#include <machine/pcb.h>
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#define kfpu_allowed() 1
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#define kfpu_initialize(tsk) do {} while (0)
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#define kfpu_begin() do {} while (0)
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#define kfpu_end() do {} while (0)
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#define kfpu_begin() do { \
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if (__predict_false(!is_fpu_kern_thread(0))) \
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fpu_kern_enter(curthread, NULL, FPU_KERN_NOCTX); \
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} while (0)
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#define kfpu_end() do { \
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if (__predict_false(curthread->td_pcb->pcb_fpflags & PCB_FP_NOSAVE)) \
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fpu_kern_leave(curthread, NULL); \
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} while (0)
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#define kfpu_init() (0)
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#define kfpu_fini() do {} while (0)
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