Fix build for Linux/powerpc without CONFIG_ALTIVEC or CONFIG_VSX
This fixes building ZFS for Linux 4.7+ powerpc* architecture, where Linux was configured without CONFIG_ALTIVEC or CONFIG_VSX. Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: WHR <msl0000023508@gmail.com> Closes #14591
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@ -66,32 +66,46 @@
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#define kfpu_allowed() 1
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 5, 0)
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#ifdef CONFIG_ALTIVEC
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#define ENABLE_KERNEL_ALTIVEC enable_kernel_altivec()
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#define DISABLE_KERNEL_ALTIVEC disable_kernel_altivec()
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#else
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#define ENABLE_KERNEL_ALTIVEC
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#define DISABLE_KERNEL_ALTIVEC
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#endif
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#ifdef CONFIG_VSX
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#define ENABLE_KERNEL_VSX enable_kernel_vsx()
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#define DISABLE_KERNEL_VSX disable_kernel_vsx()
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#else
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#define ENABLE_KERNEL_VSX
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#define DISABLE_KERNEL_VSX
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#endif
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#ifdef CONFIG_SPE
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#define kfpu_begin() \
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{ \
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preempt_disable(); \
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enable_kernel_altivec(); \
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enable_kernel_vsx(); \
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ENABLE_KERNEL_ALTIVEC \
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ENABLE_KERNEL_VSX \
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enable_kernel_spe(); \
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}
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#define kfpu_end() \
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{ \
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disable_kernel_spe(); \
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disable_kernel_vsx(); \
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disable_kernel_altivec(); \
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DISABLE_KERNEL_VSX \
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DISABLE_KERNEL_ALTIVEC \
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preempt_enable(); \
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}
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#else /* CONFIG_SPE */
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#define kfpu_begin() \
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{ \
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preempt_disable(); \
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enable_kernel_altivec(); \
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enable_kernel_vsx(); \
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ENABLE_KERNEL_ALTIVEC \
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ENABLE_KERNEL_VSX \
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}
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#define kfpu_end() \
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{ \
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disable_kernel_vsx(); \
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disable_kernel_altivec(); \
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DISABLE_KERNEL_VSX \
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DISABLE_KERNEL_ALTIVEC \
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preempt_enable(); \
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}
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#endif
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