ppc/hash64: Rework R and C bit updates
With MT-TCG, we are now running translation in a racy way, thus we need to mimic hardware when it comes to updating the R and C bits, by doing byte stores. The current "store_hpte" abstraction is ill suited for this, we replace it with two separate callbacks for setting R and C. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NCédric Le Goater <clg@kaod.org> Message-Id: <20190411080004.8690-4-clg@kaod.org> Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
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