paging.hpp

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// SPDX-License-Identifier: GPL-3.0-or-later
 
#pragma once
 
#include "mos/mm/mm.hpp"
 
#include <mos/lib/structures/bitmap.hpp>
#include <mos/lib/sync/spinlock.hpp>
#include <mos/platform/platform.hpp>

 
typedef enum
{
    VALLOC_DEFAULT = 0,        
    VALLOC_EXACT = MMAP_EXACT, 
} valloc_flags;

 
PtrResult<vmap_t> mm_get_free_vaddr_locked(MMContext *mmctx, size_t n_pages, ptr_t base_vaddr, valloc_flags flags);

void mm_map_kernel_pages(MMContext *mmctx, ptr_t vaddr, pfn_t pfn, size_t npages, vm_flags flags);
PtrResult<vmap_t> mm_map_user_pages(MMContext *mmctx, ptr_t vaddr, pfn_t pfn, size_t npages, vm_flags flags, valloc_flags vaflags, vmap_type_t type,
                                    vmap_content_t content);

void mm_replace_page_locked(MMContext *mmctx, ptr_t vaddr, pfn_t pfn, vm_flags flags);

PtrResult<vmap_t> mm_clone_vmap_locked(vmap_t *src_vmap, MMContext *dst_ctx);

bool mm_get_is_mapped_locked(MMContext *mmctx, ptr_t vaddr);

void mm_flag_pages_locked(MMContext *mmctx, ptr_t vaddr, size_t npages, vm_flags flags);
 
ptr_t mm_get_phys_addr(MMContext *ctx, ptr_t vaddr);