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EISA/ISA memory space is any pa < 8MB.

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This commit is contained in:
Matt Jacob 2000-05-07 05:31:39 +00:00
parent 72cc7e2dce
commit d55ab6af0d
1 changed files with 24 additions and 2 deletions
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26
sys/alpha/mcbus/mcpcia.c
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@ -247,6 +247,12 @@ static u_int8_t
mcpcia_readb(u_int32_t pa)
{
struct mcpcia_softc *sc = MCPCIA_SOFTC(MCPCIA_INST(pa));
if (pa < (8 << 20)) {
if (mcpcia_eisa == NULL) {
return (0xff);
}
return SPARSE_READ_BYTE(mcpcia_eisa->smem_base, pa);
}
return SPARSE_READ_BYTE(sc->smem_base, MCPCIA_ADDR(pa));
}
@ -254,6 +260,12 @@ static u_int16_t
mcpcia_readw(u_int32_t pa)
{
struct mcpcia_softc *sc = MCPCIA_SOFTC(MCPCIA_INST(pa));
if (pa < (8 << 20)) {
if (mcpcia_eisa == NULL) {
return (0xffff);
}
return SPARSE_READ_WORD(mcpcia_eisa->smem_base, pa);
}
return SPARSE_READ_WORD(sc->smem_base, MCPCIA_ADDR(pa));
}
@ -268,7 +280,12 @@ static void
mcpcia_writeb(u_int32_t pa, u_int8_t data)
{
struct mcpcia_softc *sc = MCPCIA_SOFTC(MCPCIA_INST(pa));
SPARSE_WRITE_BYTE(sc->smem_base, MCPCIA_ADDR(pa), data);
if (pa < (8 << 20)) {
if (mcpcia_eisa)
SPARSE_WRITE_BYTE(mcpcia_eisa->smem_base, pa, data);
} else {
SPARSE_WRITE_BYTE(sc->smem_base, MCPCIA_ADDR(pa), data);
}
alpha_mb();
}
@ -276,7 +293,12 @@ static void
mcpcia_writew(u_int32_t pa, u_int16_t data)
{
struct mcpcia_softc *sc = MCPCIA_SOFTC(MCPCIA_INST(pa));
SPARSE_WRITE_WORD(sc->smem_base, MCPCIA_ADDR(pa), data);
if (pa < (8 << 20)) {
if (mcpcia_eisa)
SPARSE_WRITE_WORD(mcpcia_eisa->smem_base, pa, data);
} else {
SPARSE_WRITE_WORD(sc->smem_base, MCPCIA_ADDR(pa), data);
}
alpha_mb();
}