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> I suspect the best thing at this point is to move the sync in writeX() > before the store, as you suggest, and add an "eieio" before the load > in readX(). That does mean that we are then relying on driver writers > putting in the mmiowb() between a writeX() and a spin_unlock, but at > least that is documented. Well, why keep the sync in writel then ? Isn't it agreed that the driver should use an explicit barrier ? Or did I misunderstand Linus ? Ben. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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