Also mark writecombine as enabled when PAT is used to enable

it rather than MTRRs.
This commit is contained in:
Andrew Gallatin 2007-06-17 00:09:51 +00:00
parent 1dfe405372
commit 4d69a9d061

View File

@ -154,6 +154,7 @@ mxge_enable_wc(mxge_softc_t *sc)
vm_offset_t len;
int err, action;
sc->wc = 1;
len = rman_get_size(sc->mem_res);
#if defined(__i386) || defined(__amd64)
err = pmap_change_attr((vm_offset_t) sc->sram,
@ -172,11 +173,10 @@ mxge_enable_wc(mxge_softc_t *sc)
strcpy((char *)&mrdesc.mr_owner, "mxge");
err = mem_range_attr_set(&mrdesc, &action);
if (err != 0) {
sc->wc = 0;
device_printf(sc->dev,
"w/c failed for pa 0x%lx, len 0x%lx, err = %d\n",
(unsigned long)pa, (unsigned long)len, err);
} else {
sc->wc = 1;
}
}