zxfoundation::memory::pmm::detail::buddy_zone Struct Reference

Per-zone buddy allocator state. More...

Public Member Functions
auto	pop (u32 ord) noexcept -> u64
	Pop head block from order-ord free list.
auto	push (u32 ord, u64 phys) noexcept -> void
	Push block to the head of order-ord free list.
auto	remove (u32 ord, u64 phys) noexcept -> void
	Remove a specific block from the order-ord free list (O(1)).

Data Fields
u64	counts [MAX_ORDER+1] {}
	Count of free blocks at each order.
u64	heads [MAX_ORDER+1] {}
	Head physical address of each order's free list.

Static Public Attributes
static constexpr u64	EMPTY = 0

Detailed Description

Per-zone buddy allocator state.

Member Function Documentation

pop()

auto zxfoundation::memory::pmm::detail::buddy_zone::pop ( u32 ord ) ->u64

inlinenoexcept

Pop head block from order-ord free list.

Returns

Physical base address, or 0 if empty.

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The documentation for this struct was generated from the following file:

• zxfoundation/memory/pmm.zcomponent/core.cxx