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| author | Andre Przywara <andre.przywara@amd.com> | 2012-09-04 08:28:04 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2012-09-09 22:04:41 +0200 |
| commit | 034be8fd645bb77ca623036dc24c790b6cc803e2 (patch) | |
| tree | 5be915aefef78aef8a13645f6358592cdb88484b /drivers/cpufreq | |
| parent | acd316248205d553594296f1895ba5196b89ffcc (diff) | |
| download | linux-stable-034be8fd645bb77ca623036dc24c790b6cc803e2.tar.gz linux-stable-034be8fd645bb77ca623036dc24c790b6cc803e2.tar.bz2 linux-stable-034be8fd645bb77ca623036dc24c790b6cc803e2.zip | |
cpufreq: Add warning message to powernow-k8
cpufreq modules are often loaded from init scripts that assume that
all recent AMD systems will use powernow-k8.
To inform the user of the change of support and ease the transition
to acpi-cpufreq, emit a warning message.
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/Kconfig.x86 | 3 | ||||
| -rw-r--r-- | drivers/cpufreq/powernow-k8.c | 3 |
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86 index 8d12e378a7ef..b36ca1f68bff 100644 --- a/drivers/cpufreq/Kconfig.x86 +++ b/drivers/cpufreq/Kconfig.x86 @@ -96,7 +96,8 @@ config X86_POWERNOW_K8 select CPU_FREQ_TABLE depends on ACPI && ACPI_PROCESSOR help - This adds the CPUFreq driver for K8/K10 Opteron/Athlon64 processors. + This adds the CPUFreq driver for K8/early Opteron/Athlon64 processors. + Support for K10 and newer processors is now in acpi-cpufreq. To compile this driver as a module, choose M here: the module will be called powernow-k8. diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c index 33f17c4a1342..e2defb822bb1 100644 --- a/drivers/cpufreq/powernow-k8.c +++ b/drivers/cpufreq/powernow-k8.c @@ -1563,6 +1563,9 @@ static int __cpuinit powernowk8_init(void) if (!x86_match_cpu(powernow_k8_ids)) return -ENODEV; + if (static_cpu_has(X86_FEATURE_HW_PSTATE)) + pr_warn(PFX "support for this CPU is deprecated, use acpi-cpufreq instead.\n"); + for_each_online_cpu(i) { int rc; smp_call_function_single(i, check_supported_cpu, &rc, 1); |