[LinuxBIOS] DK8-HTX Early Hang with HTX Card Intsalled
mcqmcqmcq at fastmail.fm
mcqmcqmcq at fastmail.fm
Wed Dec 13 00:29:36 CET 2006
> With that patch, you can use 4G RAM or more.
I have 4GB installed. I added printks to your patch thusly:
/* Write the range mtrrs */
if (state->range_sizek != 0) {
#if CONFIG_VAR_MTRR_HOLE
printk_debug("write range mtrr w/_HOLE set\n");
if (state->hole_sizek == 0) {
/* We need to put that on to hole */
unsigned long endk = basek + sizek;
state->hole_startk = state->range_startk +
state->range_sizek;
state->hole_sizek = basek - state->hole_startk;
state->range_sizek = endk - state->range_startk;
return;
}
#endif
state->reg = range_to_mtrr(state->reg,
state->range_startk,
state->range_sizek, basek, MTRR_TYPE_WRBACK,
state->address_bits);
#if CONFIG_VAR_MTRR_HOLE
printk_debug("write range mtrr 2 w/_HOLE set\n");
state->reg = range_to_mtrr(state->reg,
state->hole_startk,
state->hole_sizek, basek,
MTRR_TYPE_UNCACHEABLE, state->address_bits);
#endif
state->range_startk = 0;
state->range_sizek = 0;
#if CONFIG_VAR_MTRR_HOLE
printk_debug("write range mtrr 3 w/_HOLE set\n");
state->hole_startk = 0;
state->hole_sizek = 0;
#endif
}
/* Allocate an msr */
And booted, seeing:
DONE fixed MTRRs
DONE fixed MTRRs
write range mtrr w/_HOLE set
write range mtrr w/_HOLE set
Setting variable MTRR 0, base: 0MB, range: 4096MB, type WB
Setting variable MTRR 0, base: 0MB, range: 4096MB, type WB
Setting variable MTRR 1, base: 4096MB, range: 512MB, type WB
Setting variable MTRR 1, base: 4096MB, range: 512MB, type WB
Setting variable MTRR 2, base: 3584MB, range: 512MB, type UC
Setting variable MTRR 2, base: 3584MB, range: 512MB, type UC
DONE variable MTRRs
which means that the if(sizek!=0) branch...return; is always the
path taken. When linux comes up:
sh-3.1# modprobe ib_ipath
PCI: No IRQ known for interrupt pin C of device 0000:40:01.0. Probably
buggy MP.mtrr: type mismatch for fd500000,100000 old: write-back new:
write-combining
ib_ipath 0000:40:01.0: mtrr_add() WC for PIO bufs failed (-22)
ib_ipath 0000:40:01.0: infinipath0: Write combining not enabled (err
22): perfor
And /proc/mtrr:
reg00: base=0x00000000 ( 0MB), size=4096MB: write-back, count=1
reg01: base=0x100000000 (4096MB), size= 512MB: write-back, count=1
reg02: base=0xe0000000 (3584MB), size= 512MB: uncachable, count=1
-mcq
--
mcqmcqmcq at fastmail.fm
--
http://www.fastmail.fm - Access all of your messages and folders
wherever you are
More information about the coreboot
mailing list