reactos/ntoskrnl/mm/ARM3/largepag.c
Victor Perevertkin 5c7ce4475e
[REACTOS] Cleanup INIT and some PAGE section allocations
- Change INIT_FUNCTION and INIT_SECTION to CODE_SEG("INIT") and DATA_SEG("INIT") respectively
- Remove INIT_FUNCTION from function prototypes
- Remove alloc_text pragma calls as they are not needed anymore
2020-11-02 21:45:31 +03:00

105 lines
2.6 KiB
C

/*
* PROJECT: ReactOS Kernel
* LICENSE: BSD - See COPYING.ARM in the top level directory
* FILE: ntoskrnl/mm/ARM3/largepag.c
* PURPOSE: ARM Memory Manager Large Page Support
* PROGRAMMERS: ReactOS Portable Systems Group
*/
/* INCLUDES *******************************************************************/
#include <ntoskrnl.h>
#define NDEBUG
#include <debug.h>
#define MODULE_INVOLVED_IN_ARM3
#include <mm/ARM3/miarm.h>
/* GLOBALS ********************************************************************/
LIST_ENTRY MmProcessList;
PMMPTE MiLargePageHyperPte;
ULONG MiLargePageRangeIndex;
MI_LARGE_PAGE_RANGES MiLargePageRanges[64];
WCHAR MmLargePageDriverBuffer[512] = {0};
ULONG MmLargePageDriverBufferLength = -1;
LIST_ENTRY MiLargePageDriverList;
BOOLEAN MiLargePageAllDrivers;
/* FUNCTIONS ******************************************************************/
CODE_SEG("INIT")
VOID
NTAPI
MiInitializeLargePageSupport(VOID)
{
#if _MI_PAGING_LEVELS > 2
DPRINT1("MiInitializeLargePageSupport: PAE/x64 Not Implemented\n");
//ASSERT(FALSE);
#else
/* Initialize the large-page hyperspace PTE used for initial mapping */
MiLargePageHyperPte = MiReserveSystemPtes(1, SystemPteSpace);
ASSERT(MiLargePageHyperPte);
MiLargePageHyperPte->u.Long = 0;
/* Initialize the process tracking list, and insert the system process */
InitializeListHead(&MmProcessList);
InsertTailList(&MmProcessList, &PsGetCurrentProcess()->MmProcessLinks);
#endif
}
CODE_SEG("INIT")
VOID
NTAPI
MiSyncCachedRanges(VOID)
{
ULONG i;
/* Scan every range */
for (i = 0; i < MiLargePageRangeIndex; i++)
{
UNIMPLEMENTED_DBGBREAK("No support for large pages\n");
}
}
CODE_SEG("INIT")
VOID
NTAPI
MiInitializeDriverLargePageList(VOID)
{
PWCHAR p, pp;
/* Initialize the list */
InitializeListHead(&MiLargePageDriverList);
/* Bail out if there's nothing */
if (MmLargePageDriverBufferLength == 0xFFFFFFFF) return;
/* Loop from start to finish */
p = MmLargePageDriverBuffer;
pp = MmLargePageDriverBuffer + (MmLargePageDriverBufferLength / sizeof(WCHAR));
while (p < pp)
{
/* Skip whitespaces */
if ((*p == L' ') || (*p == L'\n') || (*p == L'\r') || (*p == L'\t'))
{
/* Skip the character */
p++;
continue;
}
/* A star means everything */
if (*p == L'*')
{
/* No need to keep going */
MiLargePageAllDrivers = TRUE;
break;
}
DPRINT1("Large page drivers not supported\n");
ASSERT(FALSE);
}
}
/* EOF */