Files
LithosAnanke/kernel/include/starkernel/pmm.h
T
Claude 16b9747d33 chore(license): the source headers name the Starship License 1.0 (SL-1.0), as LICENSE does [skip ci]
347 headers said "Licensed under the StarForth License, Version 1.0" -- a
shortening (Captain Bob, 2026-11-08: "License file SL I think I shortened
accidently"); LICENSE is, and has been since the first commit, the
Starship License 1.0 (SL-1.0, SPDX LicenseRef-Starship-1.0). 349 files,
566 occurrences, now "Starship License, Version 1.0 (SL-1.0)".

Left as they are, pending a ruling: docs/patent/ (the patent figures),
docs/formal/ (the citable volumes) and the generated reports under
docs/working/experiments/ (32 files). Comments and license text only:
the amd64 kernel builds, every changed script parses.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GE3SDvQn5EoxdGufk84zz2
2026-11-08 17:54:24 +00:00

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/*
StarForth — Steady-State Virtual Machine Runtime
Copyright (c) 2023–2025 Robert A. James
All rights reserved.
This file is part of the StarForth project.
Licensed under the Starship License, Version 1.0 (SL-1.0) (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at:
https://github.com/star.4th@proton.me/StarForth/LICENSE.txt
This software is provided "AS IS", WITHOUT WARRANTY OF ANY KIND,
express or implied, including but not limited to the warranties of
merchantability, fitness for a particular purpose, and noninfringement.
See the License for the specific language governing permissions and
limitations under the License.
StarForth — Steady-State Virtual Machine Runtime
Copyright (c) 2023–2025 Robert A. James
All rights reserved.
This file is part of the StarForth project.
Licensed under the Starship License, Version 1.0 (SL-1.0) (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at:
https://github.com/star.4th@proton.me/StarForth/LICENSE.txt
This software is provided "AS IS", WITHOUT WARRANTY OF ANY KIND,
express or implied, including but not limited to the warranties of
merchantability, fitness for a particular purpose, and noninfringement.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* pmm.h - Physical Memory Manager interface for StarKernel
*
* Bitmap-based allocator for 4KB physical pages. Initialization parses the
* UEFI memory map provided in BootInfo and exposes simple allocation and
* statistics helpers for early kernel bring-up.
*/
#ifndef STARKERNEL_PMM_H
#define STARKERNEL_PMM_H
#include <stdint.h>
#include <stddef.h>
#include "uefi.h"
#define PMM_PAGE_SIZE 4096u
typedef struct {
uint64_t total_pages;
uint64_t used_pages;
uint64_t free_pages;
uint64_t total_bytes;
uint64_t used_bytes;
uint64_t free_bytes;
} pmm_stats_t;
int pmm_init(BootInfo *boot_info);
int pmm_is_initialized(void);
uint64_t pmm_alloc_page(void);
uint64_t pmm_alloc_contiguous(uint64_t num_pages);
void pmm_free_page(uint64_t paddr);
void pmm_free_contiguous(uint64_t paddr, uint64_t num_pages);
pmm_stats_t pmm_get_stats(void);
#endif /* STARKERNEL_PMM_H */