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authorAndre Przywara <andre.przywara@amd.com>2012-09-04 08:28:04 +0000
committerRafael J. Wysocki <rjw@sisk.pl>2012-09-09 22:04:41 +0200
commit034be8fd645bb77ca623036dc24c790b6cc803e2 (patch)
tree5be915aefef78aef8a13645f6358592cdb88484b /drivers/cpufreq/powernow-k8.c
parentacd316248205d553594296f1895ba5196b89ffcc (diff)
downloadleg-kernel-034be8fd645bb77ca623036dc24c790b6cc803e2.tar.gz
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/powernow-k8.c')
-rw-r--r--drivers/cpufreq/powernow-k8.c3
1 files changed, 3 insertions, 0 deletions
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);