hwmon: (k10temp) Do not blacklist known working CPU models
When detecting AM2+ or AM3 socket with DDR2, only blacklist cores which are known to exist in AM2+ format. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Clemens Ladisch <clemens@ladisch.de> Cc: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: stable@kernel.org
This commit is contained in:
parent
7e27d6e778
commit
eefc2d9e3d
|
@ -112,11 +112,21 @@ static bool __devinit has_erratum_319(struct pci_dev *pdev)
|
||||||
if (pkg_type != CPUID_PKGTYPE_AM2R2_AM3)
|
if (pkg_type != CPUID_PKGTYPE_AM2R2_AM3)
|
||||||
return false;
|
return false;
|
||||||
|
|
||||||
/* Differentiate between AM2+ (bad) and AM3 (good) */
|
/* DDR3 memory implies socket AM3, which is good */
|
||||||
pci_bus_read_config_dword(pdev->bus,
|
pci_bus_read_config_dword(pdev->bus,
|
||||||
PCI_DEVFN(PCI_SLOT(pdev->devfn), 2),
|
PCI_DEVFN(PCI_SLOT(pdev->devfn), 2),
|
||||||
REG_DCT0_CONFIG_HIGH, ®_dram_cfg);
|
REG_DCT0_CONFIG_HIGH, ®_dram_cfg);
|
||||||
return !(reg_dram_cfg & DDR3_MODE);
|
if (reg_dram_cfg & DDR3_MODE)
|
||||||
|
return false;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Unfortunately it is possible to run a socket AM3 CPU with DDR2
|
||||||
|
* memory. We blacklist all the cores which do exist in socket AM2+
|
||||||
|
* format. It still isn't perfect, as RB-C2 cores exist in both AM2+
|
||||||
|
* and AM3 formats, but that's the best we can do.
|
||||||
|
*/
|
||||||
|
return boot_cpu_data.x86_model < 4 ||
|
||||||
|
(boot_cpu_data.x86_model == 4 && boot_cpu_data.x86_mask <= 2);
|
||||||
}
|
}
|
||||||
|
|
||||||
static int __devinit k10temp_probe(struct pci_dev *pdev,
|
static int __devinit k10temp_probe(struct pci_dev *pdev,
|
||||||
|
|
Loading…
Reference in New Issue