Re: [PATCH V3] arm64/mm: Define PTDESC_ORDER

[Catalin Marinas]

On Tue, 11 Mar 2025 10:27:10 +0530, Anshuman Khandual wrote:
> Address bytes shifted with a single 64 bit page table entry (any page table
> level) has been always hard coded as 3 (aka 2^3 = 8). Although intuitive it
> is not very readable or easy to reason about. Besides it is going to change
> with D128, where each 128 bit page table entry will shift address bytes by
> 4 (aka 2^4 = 16) instead.
> 
> Let's just formalise this address bytes shift value into a new macro called
> PTDESC_ORDER establishing a logical abstraction, thus improving readability
> as well. While here re-organize EARLY_LEVEL macro along with its dependents
> for better clarity. This does not cause any functional change. Also replace
> all (PAGE_SHIFT - PTDESC_ORDER) instances with PTDESC_TABLE_SHIFT.
> 
> [...]

Applied to arm64 (for-next/pgtable-cleanups), thanks!

[1/1] arm64/mm: Define PTDESC_ORDER
      https://git.kernel.org/arm64/c/51ecb29f7a65

-- 
Catalin