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Diffstat (limited to 'src/soc/intel/common/block/cpu/cpulib.c')
-rw-r--r--src/soc/intel/common/block/cpu/cpulib.c58
1 files changed, 57 insertions, 1 deletions
diff --git a/src/soc/intel/common/block/cpu/cpulib.c b/src/soc/intel/common/block/cpu/cpulib.c
index 5920512cd4..2272e69edb 100644
--- a/src/soc/intel/common/block/cpu/cpulib.c
+++ b/src/soc/intel/common/block/cpu/cpulib.c
@@ -14,6 +14,7 @@
* GNU General Public License for more details.
*/
+#include <arch/acpigen.h>
#include <arch/io.h>
#include <console/console.h>
#include <cpu/intel/turbo.h>
@@ -238,5 +239,60 @@ int cpu_read_topology(unsigned int *num_phys, unsigned int *num_virt)
msr = rdmsr(MSR_CORE_THREAD_COUNT);
*num_virt = (msr.lo >> 0) & 0xffff;
*num_phys = (msr.lo >> 16) & 0xffff;
- return (*num_virt == *num_phys);
+ return (*num_virt == *num_phys);
+}
+
+int cpu_get_coord_type(void)
+{
+ return HW_ALL;
+}
+
+uint32_t cpu_get_min_ratio(void)
+{
+ msr_t msr;
+ /* Get bus ratio limits and calculate clock speeds */
+ msr = rdmsr(MSR_PLATFORM_INFO);
+ return ((msr.hi >> 8) & 0xff); /* Max Efficiency Ratio */
+}
+
+uint32_t cpu_get_max_ratio(void)
+{
+ msr_t msr;
+ uint32_t ratio_max;
+ if (cpu_config_tdp_levels()) {
+ /* Set max ratio to nominal TDP ratio */
+ msr = rdmsr(MSR_CONFIG_TDP_NOMINAL);
+ ratio_max = msr.lo & 0xff;
+ } else {
+ msr = rdmsr(MSR_PLATFORM_INFO);
+ /* Max Non-Turbo Ratio */
+ ratio_max = (msr.lo >> 8) & 0xff;
+ }
+ return ratio_max;
+}
+
+uint32_t cpu_get_bus_clock(void)
+{
+ /* CPU bus clock is set by default here to 100MHz.
+ * This function returns the bus clock in KHz.
+ */
+ return CONFIG_CPU_BCLK_MHZ * KHz;
+}
+
+uint32_t cpu_get_power_max(void)
+{
+ msr_t msr;
+ int power_unit;
+
+ msr = rdmsr(MSR_PKG_POWER_SKU_UNIT);
+ power_unit = 2 << ((msr.lo & 0xf) - 1);
+ msr = rdmsr(MSR_PKG_POWER_SKU);
+ return ((msr.lo & 0x7fff) / power_unit) * 1000;
+}
+
+uint32_t cpu_get_max_turbo_ratio(void)
+{
+ msr_t msr;
+ msr = rdmsr(MSR_TURBO_RATIO_LIMIT);
+ return msr.lo & 0xff;
}