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#include "memory.h"
#include "zone.h"
#include "lib/jove.h"
void
mem_phys_reserve(physptr_t start, physptr_t end)
{
size_t zone = mem_zone_for(start);
size_t limit = mem_zone_bound_upper(zone);
if(end > limit) {
mem_phys_reserve(limit, end);
end = limit;
}
mem_zone_resv(MEM_ZONE_STANDARD, start, end);
}
void
mem_phys_release(physptr_t start, physptr_t end)
{
size_t zone = mem_zone_for(start);
size_t limit = mem_zone_bound_upper(zone);
if(end > limit) {
mem_phys_release(limit, end);
end = limit;
}
mem_zone_free(MEM_ZONE_STANDARD, start, end);
}
physptr_t
mem_phys_alloc(size_t pages)
{
if(mem_zone_pages_free(MEM_ZONE_HIGHER) >= pages)
return mem_zone_alloc(MEM_ZONE_HIGHER, pages);
if(mem_zone_pages_free(MEM_ZONE_STANDARD) >= pages)
return mem_zone_alloc(MEM_ZONE_STANDARD, pages);
kpanic("Kernel ran out of physical memory!\n");
}
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