Hi Krunal, On Sat, 4 Jun 2011 13:08:18 +0200, Jean Delvare wrote: > Brilly, Kary, can you help us here, please? Where can we get the VID pin > codes -> Vcore voltage conversion table for VIA CPU family 6, model 13? > This is needed to update drivers/hwmon/hwmon-vid.c. I received information from VIA and was able to update hwmon-vid to support your CPU. Patch below. I couldn't test it as I don't have the hardware. I've also made the modified hwmon-vid driver available as a standalone driver at: http://khali.linux-fr.org/devel/misc/hwmon-vid/ with instructions at: http://khali.linux-fr.org/devel/misc/INSTALL Please test if you can, and report. From: Jean Delvare <khali@xxxxxxxxxxxx> Subject: hwmon-vid: Add support for VIA C7-D The VIA C7-D CPU (Eden 90 nm) can use two different VID tables, we have to check the value of a MSR to decide which one to use. Signed-off-by: Jean Delvare <khali@xxxxxxxxxxxx> --- drivers/hwmon/hwmon-vid.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) --- linux-3.0-rc3.orig/drivers/hwmon/hwmon-vid.c 2011-06-20 13:43:24.000000000 +0200 +++ linux-3.0-rc3/drivers/hwmon/hwmon-vid.c 2011-06-20 17:58:18.000000000 +0200 @@ -206,10 +206,30 @@ static struct vrm_model vrm_models[] = { {X86_VENDOR_CENTAUR, 0x6, 0x9, ANY, 17}, /* C3-M, Eden-N */ {X86_VENDOR_CENTAUR, 0x6, 0xA, 0x7, 0}, /* No information */ {X86_VENDOR_CENTAUR, 0x6, 0xA, ANY, 13}, /* C7, Esther */ + {X86_VENDOR_CENTAUR, 0x6, 0xD, ANY, 134}, /* C7-D, Eden (90 nm) */ {X86_VENDOR_UNKNOWN, ANY, ANY, ANY, 0} /* stop here */ }; +/* + * Special case for VIA C7-D: there are two different possible + * VID tables, so we have to figure out first, which one must + * be used. + */ +static u8 get_via_c7d_vrm(void) +{ + unsigned int eax, edx; + + rdmsr(0x198, eax, edx); + if ((edx & 0xff) > 0x3f) { + pr_info("Using %d-bit VID table for VIA C7-D CPU\n", 7); + return 14; + } else { + pr_info("Using %d-bit VID table for VIA C7-D CPU\n", 6); + return 13; + } +} + static u8 find_vrm(u8 eff_family, u8 eff_model, u8 eff_stepping, u8 vendor) { int i = 0; @@ -249,6 +269,9 @@ u8 vid_which_vrm(void) vrm_ret = find_vrm(eff_family, eff_model, eff_stepping, c->x86_vendor); if (vrm_ret == 0) pr_info("Unknown VRM version of your x86 CPU\n"); + if (vrm_ret == 134) + vrm_ret = get_via_c7d_vrm(); + return vrm_ret; } -- Jean Delvare http://khali.linux-fr.org/wishlist.html _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
