[PATCH v4 0/4] Introduce atomic MMIO modify

This patchset introduces an atomic MMIO modify API. The motivation for adding this is to allow cheap, infrastructure-less, thread-safe access to an MMIO region, even in very early scenarios. The chosen mask/set semantic (proposed by Russell King) is clean and flexible enough and matches the

[PATCH v4 0/4] Introduce atomic MMIO modify

This patchset introduces an atomic MMIO modify API. The motivation for adding this is to allow cheap, infrastructure-less, thread-safe access to an MMIO region, even in very early scenarios. The chosen mask/set semantic (proposed by Russell King) is clean and flexible enough and matches the