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| author | Jiri Kosina <jkosina@suse.cz> | 2010-08-04 15:14:38 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2010-08-04 15:14:38 +0200 |
| commit | d790d4d583aeaed9fc6f8a9f4d9f8ce6b1c15c7f (patch) | |
| tree | 854ab394486288d40fa8179cbfaf66e8bdc44b0f /drivers/hwmon/k10temp.c | |
| parent | 73b2c7165b76b20eb1290e7efebc33cfd21db1ca (diff) | |
| parent | 3a09b1be53d23df780a0cd0e4087a05e2ca4a00c (diff) | |
| download | op-kernel-dev-d790d4d583aeaed9fc6f8a9f4d9f8ce6b1c15c7f.zip op-kernel-dev-d790d4d583aeaed9fc6f8a9f4d9f8ce6b1c15c7f.tar.gz | |
Merge branch 'master' into for-next
Diffstat (limited to 'drivers/hwmon/k10temp.c')
| -rw-r--r-- | drivers/hwmon/k10temp.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c index 099a213..da5a240 100644 --- a/drivers/hwmon/k10temp.c +++ b/drivers/hwmon/k10temp.c @@ -112,11 +112,21 @@ static bool __devinit has_erratum_319(struct pci_dev *pdev) if (pkg_type != CPUID_PKGTYPE_AM2R2_AM3) 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_DEVFN(PCI_SLOT(pdev->devfn), 2), 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, |
