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#include <apos/uapi.h>
#include <apos/utils.h>
#include <apos/vmem.h>
#include <apos/dmem.h>
SYSCALL_DEFINE2(req_mem)(vm_t size, vm_t flags)
{
/* proc_tcb should give the tcb of the TID currently running */
struct tcb *r = cur_tcb();
return alloc_uvmem(r, size, flags);
}
SYSCALL_DEFINE3(req_fixmem)(vm_t start, vm_t size, vm_t flags)
{
struct tcb *r = cur_tcb();
return alloc_fixed_uvmem(r, start, size, flags);
}
SYSCALL_DEFINE1(free_mem)(vm_t start)
{
struct tcb *r = cur_tcb();
if (start > __pre_top && start < __post_base)
free_uvmem(r, start);
else
free_devmem(r, start);
return 0;
}
SYSCALL_DEFINE3(req_pmem)(vm_t paddr, vm_t size, vm_t flags)
{
/* this will require some pondering, but essentially this syscall should
* only be used for device access, so any addresses requested should be
* outside the RAM area, and I'll probably have to implement some method
* that keeps track of used regions outside of RAM. We'll see.
*/
struct tcb *r = cur_tcb();
return alloc_devmem(r, paddr, size, flags);
}
SYSCALL_DEFINE4(req_sharedmem)(vm_t pid, vm_t start, vm_t size, vm_t flags)
{
/* take memory in PID's vaddr and map it somewhere in our own memory
* region.
*/
return 0;
}
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