1 files changed, 26 insertions, 16 deletions

diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index 4709ead2db52..f6b32d112357 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -649,6 +649,20 @@ static void print_basics(struct powernow_k8_data *data)
                                 data->batps);
 }
 
+static u32 freq_from_fid_did(u32 fid, u32 did)
+{
+        u32 mhz = 0;
+
+        if (boot_cpu_data.x86 == 0x10)
+                mhz = (100 * (fid + 0x10)) >> did;
+        else if (boot_cpu_data.x86 == 0x11)
+                mhz = (100 * (fid + 8)) >> did;
+        else
+                BUG();
+
+        return mhz * 1000;
+}
+
 static int fill_powernow_table(struct powernow_k8_data *data,
                 struct pst_s *pst, u8 maxvid)
 {
@@ -923,8 +937,13 @@ static int fill_powernow_table_pstate(struct powernow_k8_data *data,
 
                 powernow_table[i].index = index;
 
-                powernow_table[i].frequency =
-                        data->acpi_data.states[i].core_frequency * 1000;
+                /* Frequency may be rounded for these */
+                if (boot_cpu_data.x86 == 0x10 || boot_cpu_data.x86 == 0x11) {
+                        powernow_table[i].frequency =
+                                freq_from_fid_did(lo & 0x3f, (lo >> 6) & 7);
+                } else
+                        powernow_table[i].frequency =
+                                data->acpi_data.states[i].core_frequency * 1000;
         }
         return 0;
 }
@@ -1215,13 +1234,16 @@ static int powernowk8_verify(struct cpufreq_policy *pol)
         return cpufreq_frequency_table_verify(pol, data->powernow_table);
 }
 
+static const char ACPI_PSS_BIOS_BUG_MSG[] =
+        KERN_ERR FW_BUG PFX "No compatible ACPI _PSS objects found.\n"
+        KERN_ERR FW_BUG PFX "Try again with latest BIOS.\n";
+
 /* per CPU init entry point to the driver */
 static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
 {
         struct powernow_k8_data *data;
         cpumask_t oldmask;
         int rc;
-        static int print_once;
 
         if (!cpu_online(pol->cpu))
                 return -ENODEV;
@@ -1244,19 +1266,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
                  * an UP version, and is deprecated by AMD.
                  */
                 if (num_online_cpus() != 1) {
-                        /*
-                         * Replace this one with print_once as soon as such a
-                         * thing gets introduced
-                         */
-                        if (!print_once) {
-                                WARN_ONCE(1, KERN_ERR FW_BUG PFX "Your BIOS "
-                                        "does not provide ACPI _PSS objects "
-                                        "in a way that Linux understands. "
-                                        "Please report this to the Linux ACPI"
-                                        " maintainers and complain to your "
-                                        "BIOS vendor.\n");
-                                print_once++;
-                        }
+                        printk_once(ACPI_PSS_BIOS_BUG_MSG);
                         goto err_out;
                 }
                 if (pol->cpu != 0) {