glue.c

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/*
# _____     ___ ____     ___ ____
#  ____|   |    ____|   |        | |____|
# |     ___|   |____ ___|    ____| |    \    PS2DEV Open Source Project.
#-----------------------------------------------------------------------
# (c) 2003 Marcus R. Brown (mrbrown@0xd6.org)
# Licenced under Academic Free License version 2.0
# Review ps2sdk README & LICENSE files for further details.
*/

 
#include "kernel.h"
#include <mipscopaccess.h>
 
int DIntr()
{
    int eie, res;
 
    eie = get_mips_cop_reg(0, COP0_REG_Status);
    eie &= 0x10000;
    res = eie != 0;
 
    if (!eie)
        return 0;
 
    __asm__ (".p2align 3");
    do {
        __asm__ __volatile__("di");
        EE_SYNCP();
        eie = get_mips_cop_reg(0, COP0_REG_Status);
        eie &= 0x10000;
    } while (eie);
 
    return res;
}
 
int EIntr()
{
    int eie;
 
    eie = get_mips_cop_reg(0, COP0_REG_Status);
    eie &= 0x10000;
    __asm__ __volatile__("ei");
 
    return eie != 0;
}
 
int EnableIntc(int intc)
{
    int eie, res;
 
    eie = get_mips_cop_reg(0, COP0_REG_Status);
    eie &= 0x10000;
 
    if (eie)
        DI();
 
    res = _EnableIntc(intc);
    EE_SYNC();
 
    if (eie)
        EI();
 
    return res;
}
 
int DisableIntc(int intc)
{
    int eie, res;
 
    eie = get_mips_cop_reg(0, COP0_REG_Status);
    eie &= 0x10000;
 
    if (eie)
        DI();
 
    res = _DisableIntc(intc);
    EE_SYNC();
 
    if (eie)
        EI();
 
    return res;
}
 
int EnableDmac(int dmac)
{
    int eie, res;
 
    eie = get_mips_cop_reg(0, COP0_REG_Status);
    eie &= 0x10000;
 
    if (eie)
        DI();
 
    res = _EnableDmac(dmac);
    EE_SYNC();
 
    if (eie)
        EI();
 
    return res;
}
 
int DisableDmac(int dmac)
{
    int eie, res;
 
    eie = get_mips_cop_reg(0, COP0_REG_Status);
    eie &= 0x10000;
 
    if (eie)
        DI();
 
    res = _DisableDmac(dmac);
    EE_SYNC();
 
    if (eie)
        EI();
 
    return res;
}
 
int iEnableIntc(int intc)
{
    int res = _iEnableIntc(intc);
    EE_SYNC();
 
    return res;
}
 
int iDisableIntc(int intc)
{
    int res = _iDisableIntc(intc);
    EE_SYNC();
 
    return res;
}
 
int iEnableDmac(int dmac)
{
    int res = _iEnableDmac(dmac);
    EE_SYNC();
 
    return res;
}
 
int iDisableDmac(int dmac)
{
    int res = _iDisableDmac(dmac);
    EE_SYNC();
 
    return res;
}
 
void SyncDCache(void *start, void *end)
{
    int eie;
 
    eie = get_mips_cop_reg(0, COP0_REG_Status);
    eie &= 0x10000;
 
    if (eie)
        DI();
 
    _SyncDCache((void *)((u32)start & 0xffffffc0), (void *)((u32)end & 0xffffffc0));
 
    if (eie)
        EI();
}
 
void iSyncDCache(void *start, void *end)
{
    _SyncDCache((void *)((u32)start & 0xffffffc0), (void *)((u32)end & 0xffffffc0));
}
 
void InvalidDCache(void *start, void *end)
{
    int eie;
 
    eie = get_mips_cop_reg(0, COP0_REG_Status);
    eie &= 0x10000;
 
    if (eie)
        DI();
 
    _InvalidDCache((void *)((u32)start & 0xffffffc0), (void *)((u32)end & 0xffffffc0));
 
    if (eie)
        EI();
}
 
void iInvalidDCache(void *start, void *end)
{
    _InvalidDCache((void *)((u32)start & 0xffffffc0), (void *)((u32)end & 0xffffffc0));
}