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Page allocator functionnal #67

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This commit is contained in:
Adrien Bourmault 2020-01-14 16:58:38 +01:00
parent 2df15a1488
commit 2bec082b2d
2 changed files with 16 additions and 14 deletions
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4
include/mm/palloc.h
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@ -39,7 +39,9 @@ typedef struct AllocatedPage_t{
//----------------------------------------------------------------------------//
error_t MmGetFreePageFrame(void **framePtr, size_t *pageNumber, size_t size);
ulong MmAllocPageFrame(void **frameListPtr, size_t *pageNumber, size_t size, bool contiguous);
void MmFreePageFrame(ulong id);
error_t MmTestBusyPage(void);
//----------------------------------------------------------------------------//

26
kaleid/kernel/mm/palloc.c
View File

@ -100,9 +100,9 @@ static void removePageFromBusyList(void *phyPageAddr)
}
//
// Returns an id to identify a page frame allocated
// Returns an id to identify a page frame allocated (kernel)
//
ulong MmAllocKernelPageFrame(void **frameListPtr, size_t *pageNumber, size_t size, bool contiguous)
ulong MmAllocPageFrame(void **frameListPtr, size_t *pageNumber, size_t size, bool contiguous)
{
static ulong id = 0;
*pageNumber = (((ulong)size - 1) / KPAGESIZE) + 1;
@ -143,7 +143,7 @@ ulong MmAllocKernelPageFrame(void **frameListPtr, size_t *pageNumber, size_t siz
return id;
}
void MmFreeKernelPageFrame(ulong id)
void MmFreePageFrame(ulong id)
{
AllocatedPage_t *busyPage = &busyPagesList;
@ -164,50 +164,50 @@ error_t MmTestBusyPage(void)
DebugLog("\nAlloc 6677 bytes\n");
void **ptr = NULL;
size_t n = 0;
ulong id1 = MmAllocKernelPageFrame (ptr, &n, 6677, false);
ulong id1 = MmAllocPageFrame (ptr, &n, 6677, false);
DebugLog("\nAlloc 9045 bytes\n");
void **ptr2 = NULL;
size_t n2 = 0;
ulong id2 = MmAllocKernelPageFrame (ptr2, &n2, 9045, false);
ulong id2 = MmAllocPageFrame (ptr2, &n2, 9045, false);
DebugLog("\nAlloc 1200 bytes\n");
void **ptr3 = NULL;
size_t n3 = 0;
ulong id3 = MmAllocKernelPageFrame (ptr3, &n3, 1200, false);
ulong id3 = MmAllocPageFrame (ptr3, &n3, 1200, false);
DebugLog("\nAlloc 4096 bytes\n");
void **ptr4 = NULL;
size_t n4 = 0;
ulong id4 = MmAllocKernelPageFrame (ptr3, &n3, 4096, false);
ulong id4 = MmAllocPageFrame (ptr3, &n3, 4096, false);
DebugLog("\nAlloc 4097 bytes\n");
void **ptr5 = NULL;
size_t n5 = 0;
ulong id5 = MmAllocKernelPageFrame (ptr3, &n3, 4097, false);
ulong id5 = MmAllocPageFrame (ptr3, &n3, 4097, false);
printBusyPages();
DebugLog("\nFree 6677 and 1200 bytes\n");
MmFreeKernelPageFrame(id1);
MmFreeKernelPageFrame(id3);
MmFreePageFrame(id1);
MmFreePageFrame(id3);
DebugLog("\nAlloc 10000 bytes\n");
void **ptr6 = NULL;
size_t n6 = 0;
ulong id6 = MmAllocKernelPageFrame (ptr3, &n3, 10000, false);
ulong id6 = MmAllocPageFrame (ptr3, &n3, 10000, false);
printBusyPages();
DebugLog("\nFree 10000 bytes\n");
MmFreeKernelPageFrame(id6);
MmFreePageFrame(id6);
printBusyPages();
DebugLog("\nAlloc 10000 bytes contiguous\n");
void **ptr7 = NULL;
size_t n7 = 0;
ulong id7 = MmAllocKernelPageFrame (ptr3, &n3, 10000, true);
ulong id7 = MmAllocPageFrame (ptr3, &n3, 10000, true);
printBusyPages();