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authorTom Rini <trini@konsulko.com>2020-09-25 09:04:01 -0400
committerTom Rini <trini@konsulko.com>2020-09-25 09:04:01 -0400
commit0ac83d080a0044cd0d8f782ba12f02cf969d3004 (patch)
treeca5c2351113ba9b56d59e241a8857c7e6e8f5604 /arch/x86/cpu/intel_common/cpu.c
parent67ece26d8b5d4bfa4fda8c456261c465d0815d7d (diff)
parent8c180d669a0f4a8eb70bde8c74c73cef45993f67 (diff)
Merge branch 'next' of https://gitlab.denx.de/u-boot/custodians/u-boot-x86 into next
- Enhance the 'zboot' command to be more like 'bootm' with sub-commands - The last series of ACPI core changes for programmatic generation of ACPI tables - Add all required ACPI tables for ApolloLake and enable ACPIGEN on Chromebook Coral - A feature minor enhancements to the 'hob' command - Intel edison: Support for writing an xFSTK image via binman
Diffstat (limited to 'arch/x86/cpu/intel_common/cpu.c')
-rw-r--r--arch/x86/cpu/intel_common/cpu.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/x86/cpu/intel_common/cpu.c b/arch/x86/cpu/intel_common/cpu.c
index 509730aea96..39aa0f63c65 100644
--- a/arch/x86/cpu/intel_common/cpu.c
+++ b/arch/x86/cpu/intel_common/cpu.c
@@ -12,6 +12,7 @@
#include <dm.h>
#include <errno.h>
#include <log.h>
+#include <acpi/acpigen.h>
#include <asm/cpu.h>
#include <asm/cpu_common.h>
#include <asm/intel_regs.h>
@@ -126,6 +127,7 @@ int cpu_intel_get_info(struct cpu_info *info, int bclk)
info->cpu_freq = ((msr.lo >> 8) & 0xff) * bclk * 1000000;
info->features = 1 << CPU_FEAT_L1_CACHE | 1 << CPU_FEAT_MMU |
1 << CPU_FEAT_UCODE | 1 << CPU_FEAT_DEVICE_ID;
+ info->address_width = cpu_phys_address_size();
return 0;
}
@@ -227,3 +229,80 @@ void cpu_set_eist(bool eist_status)
msr.lo &= ~MISC_ENABLE_ENHANCED_SPEEDSTEP;
msr_write(MSR_IA32_MISC_ENABLE, msr);
}
+
+int cpu_get_coord_type(void)
+{
+ return HW_ALL;
+}
+
+int cpu_get_min_ratio(void)
+{
+ msr_t msr;
+
+ /* Get bus ratio limits and calculate clock speeds */
+ msr = msr_read(MSR_PLATFORM_INFO);
+
+ return (msr.hi >> 8) & 0xff; /* Max Efficiency Ratio */
+}
+
+int cpu_get_max_ratio(void)
+{
+ u32 ratio_max;
+ msr_t msr;
+
+ if (cpu_config_tdp_levels()) {
+ /* Set max ratio to nominal TDP ratio */
+ msr = msr_read(MSR_CONFIG_TDP_NOMINAL);
+ ratio_max = msr.lo & 0xff;
+ } else {
+ msr = msr_read(MSR_PLATFORM_INFO);
+ /* Max Non-Turbo Ratio */
+ ratio_max = (msr.lo >> 8) & 0xff;
+ }
+
+ return ratio_max;
+}
+
+int cpu_get_bus_clock_khz(void)
+{
+ /*
+ * CPU bus clock is set by default here to 100MHz. This function returns
+ * the bus clock in KHz.
+ */
+ return INTEL_BCLK_MHZ * 1000;
+}
+
+int cpu_get_power_max(void)
+{
+ int power_unit;
+ msr_t msr;
+
+ msr = msr_read(MSR_PKG_POWER_SKU_UNIT);
+ power_unit = 2 << ((msr.lo & 0xf) - 1);
+ msr = msr_read(MSR_PKG_POWER_SKU);
+
+ return (msr.lo & 0x7fff) * 1000 / power_unit;
+}
+
+int cpu_get_max_turbo_ratio(void)
+{
+ msr_t msr;
+
+ msr = msr_read(MSR_TURBO_RATIO_LIMIT);
+
+ return msr.lo & 0xff;
+}
+
+int cpu_get_cores_per_package(void)
+{
+ struct cpuid_result result;
+ int cores = 1;
+
+ if (gd->arch.x86_vendor != X86_VENDOR_INTEL)
+ return 1;
+
+ result = cpuid_ext(0xb, 1);
+ cores = result.ebx & 0xff;
+
+ return cores;
+}