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Physical memory manager

include/mem/pmm.h View source View on GitHub

Functions

Section titled “Functions”

pmm_alloc_page_full

Section titled “pmm_alloc_page_full”
paddr_t pmm_alloc_page_full(enum alloc_flags flags)
source

pmm_alloc_pages_full

Section titled “pmm_alloc_pages_full”
paddr_t pmm_alloc_pages_full(size_t count, enum alloc_flags flags)
source

pmm_free_pages

Section titled “pmm_free_pages”
void pmm_free_pages(paddr_t addr, uint64_t count)
source

pmm_free_page

Section titled “pmm_free_page”
void pmm_free_page(paddr_t addr)
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pmm_early_init

Section titled “pmm_early_init”
void pmm_early_init(struct limine_memmap_request m)
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pmm_mid_init

Section titled “pmm_mid_init”
void pmm_mid_init(void)
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pmm_late_init

Section titled “pmm_late_init”
void pmm_late_init(void)
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pmm_get_usable_ram

Section titled “pmm_get_usable_ram”
uint64_t pmm_get_usable_ram(void)
source

Variables

Section titled “Variables”

memmap

Section titled “memmap”
extern struct limine_memmap_response *memmap
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Macros

Section titled “Macros”

pmm_alloc_pages_1

Section titled “pmm_alloc_pages_1”
#define pmm_alloc_pages_1(count)
source

The reason we use an inline function here is to allow a check of count to make sure it somehow has not ended up equaling ALLOC_PARAMS_DEFAULT and warning once if this has ended up being the case

Expansion
#define pmm_alloc_pages_1(count) \
    ({ \
        if ((enum alloc_flags) count == ALLOC_FLAGS_DEFAULT) \
            log_msg_once(LOG_WARN, \
                         "Input to alloc_pages matches ALLOC_FLAGS_DEFAULT, " \
                         "possible mistake"); \
 \
        pmm_alloc_pages_2(count, ALLOC_FLAGS_DEFAULT); \
    })

pmm_alloc_pages_2

Section titled “pmm_alloc_pages_2”
#define pmm_alloc_pages_2(count, f)
source
Expansion
#define pmm_alloc_pages_2(count, f) pmm_alloc_pages_full((count), (f))

pmm_alloc_pages

Section titled “pmm_alloc_pages”
#define pmm_alloc_pages(...)
source
Expansion
#define pmm_alloc_pages(...) PP_CALL(pmm_alloc_pages, __VA_ARGS__)

pmm_alloc_page_0

Section titled “pmm_alloc_page_0”
#define pmm_alloc_page_0()
source
Expansion
#define pmm_alloc_page_0() pmm_alloc_page_1(ALLOC_FLAGS_DEFAULT)

pmm_alloc_page_1

Section titled “pmm_alloc_page_1”
#define pmm_alloc_page_1(f)
source
Expansion
#define pmm_alloc_page_1(f) pmm_alloc_page_full((f))

pmm_alloc_page

Section titled “pmm_alloc_page”
#define pmm_alloc_page(...)
source
Expansion
#define pmm_alloc_page(...) PP_CALL(pmm_alloc_page, __VA_ARGS__)