925a0eb480
In preparation for enabling LPA2 support, introduce the mask values for converting between physical addresses and their representations in a page table descriptor. While at it, move the pte_to_phys asm macro into its only user, so that we can freely modify it to use its input value register as a temp register. For LPA2, the PTE_ADDR_MASK contains two non-adjacent sequences of zero bits, which means it no longer fits into the immediate field of an ordinary ALU instruction. So let's redefine it to include the bits in between as well, and only use it when converting from physical address to PTE representation, where the distinction does not matter. Also update the name accordingly to emphasize this. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lore.kernel.org/r/20240214122845.2033971-75-ardb+git@google.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
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