xs/vendor/blitter.com/go/kyber/hwaccel.go

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// hwaccel.go - Hardware acceleration hooks.
//
// To the extent possible under law, Yawning Angel has waived all copyright
// and related or neighboring rights to the software, using the Creative
// Commons "CC0" public domain dedication. See LICENSE or
// <http://creativecommons.org/publicdomain/zero/1.0/> for full details.
package kyber
var (
isHardwareAccelerated = false
hardwareAccelImpl = implReference
implReference = &hwaccelImpl{
name: "Reference",
nttFn: nttRef,
invnttFn: invnttRef,
pointwiseAccFn: pointwiseAccRef,
cbdFn: cbdRef,
}
)
type hwaccelImpl struct {
name string
nttFn func(*[kyberN]uint16)
invnttFn func(*[kyberN]uint16)
pointwiseAccFn func(*poly, *polyVec, *polyVec)
cbdFn func(*poly, []byte, int)
}
func forceDisableHardwareAcceleration() {
// This is for the benefit of testing, so that it's possible to test
// all versions that are supported by the host.
isHardwareAccelerated = false
hardwareAccelImpl = implReference
}
// IsHardwareAccelerated returns true iff the Kyber implementation will use
// hardware acceleration (eg: AVX2).
func IsHardwareAccelerated() bool {
return isHardwareAccelerated
}
func init() {
initHardwareAcceleration()
}