mirror of
https://github.com/reactos/reactos.git
synced 2024-11-19 05:22:59 +00:00
141 lines
2.7 KiB
C
141 lines
2.7 KiB
C
/*
|
|
* PROJECT: ReactOS HAL
|
|
* LICENSE: BSD - See COPYING.ARM in the top level directory
|
|
* FILE: hal/halarm/generic/processor.c
|
|
* PURPOSE: HAL Processor Routines
|
|
* PROGRAMMERS: ReactOS Portable Systems Group
|
|
*/
|
|
|
|
/* INCLUDES *******************************************************************/
|
|
|
|
#include <hal.h>
|
|
#define NDEBUG
|
|
#include <debug.h>
|
|
|
|
/* GLOBALS ********************************************************************/
|
|
|
|
KAFFINITY HalpActiveProcessors;
|
|
KAFFINITY HalpDefaultInterruptAffinity;
|
|
BOOLEAN HalpProcessorIdentified;
|
|
BOOLEAN HalpTestCleanSupported;
|
|
|
|
/* PRIVATE FUNCTIONS **********************************************************/
|
|
|
|
VOID
|
|
HalpIdentifyProcessor(VOID)
|
|
{
|
|
ARM_ID_CODE_REGISTER IdRegister;
|
|
|
|
/* Don't do it again */
|
|
HalpProcessorIdentified = TRUE;
|
|
|
|
// fixfix: Use Pcr->ProcessorId
|
|
|
|
/* Read the ID Code */
|
|
IdRegister = KeArmIdCodeRegisterGet();
|
|
|
|
/* Architecture "6" CPUs support test-and-clean (926EJ-S and 1026EJ-S) */
|
|
HalpTestCleanSupported = (IdRegister.Architecture == 6);
|
|
}
|
|
|
|
/* FUNCTIONS ******************************************************************/
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
VOID
|
|
NTAPI
|
|
HalInitializeProcessor(IN ULONG ProcessorNumber,
|
|
IN PLOADER_PARAMETER_BLOCK LoaderBlock)
|
|
{
|
|
/* Do nothing */
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
BOOLEAN
|
|
NTAPI
|
|
HalAllProcessorsStarted(VOID)
|
|
{
|
|
/* Do nothing */
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
BOOLEAN
|
|
NTAPI
|
|
HalStartNextProcessor(IN PLOADER_PARAMETER_BLOCK LoaderBlock,
|
|
IN PKPROCESSOR_STATE ProcessorState)
|
|
{
|
|
/* Ready to start */
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
VOID
|
|
NTAPI
|
|
HalProcessorIdle(VOID)
|
|
{
|
|
/* Enable interrupts and halt the processor */
|
|
_enable();
|
|
UNIMPLEMENTED;
|
|
while (TRUE);
|
|
}
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
VOID
|
|
NTAPI
|
|
HalRequestIpi(KAFFINITY TargetProcessors)
|
|
{
|
|
/* Not implemented on UP */
|
|
UNIMPLEMENTED;
|
|
while (TRUE);
|
|
}
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
VOID
|
|
HalSweepDcache(VOID)
|
|
{
|
|
/*
|
|
* We get called very early on, before HalInitSystem or any of the Hal*
|
|
* processor routines, so we need to figure out what CPU we're on.
|
|
*/
|
|
if (!HalpProcessorIdentified) HalpIdentifyProcessor();
|
|
|
|
/*
|
|
* Check if we can do it the ARMv5TE-J way
|
|
*/
|
|
if (HalpTestCleanSupported)
|
|
{
|
|
/* Test, clean, flush D-Cache */
|
|
__asm__ __volatile__ ("1: mrc p15, 0, pc, c7, c14, 3; bne 1b");
|
|
}
|
|
else
|
|
{
|
|
/* We need to do it it by set/way. For now always call ARMv7 function */
|
|
//extern VOID v7_flush_dcache_all(VOID);
|
|
//v7_flush_dcache_all();
|
|
}
|
|
}
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
VOID
|
|
HalSweepIcache(VOID)
|
|
{
|
|
/* All ARM cores support the same Icache flush command */
|
|
KeArmFlushIcache();
|
|
}
|
|
|
|
/* EOF */
|