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cpu/intel/model_2065x: Drop configurable TDP copy-pasta 

Configurable TDP is only supported by Ivy Bridge onwards.

Change-Id: I8a742ab6d9d22b325ed725df4f749955efb3028f
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49807
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This commit is contained in:
Angel Pons 2021-01-21 22:17:23 +01:00
parent 00d66603db
commit 9f0093d208
3 changed files with 7 additions and 41 deletions
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8
src/cpu/intel/model_2065x/acpi.c
View File

@ -124,15 +124,9 @@ static void generate_P_state_entries(int core, int cores_per_package)
msr = rdmsr(MSR_PLATFORM_INFO);
ratio_min = (msr.hi >> (40-32)) & 0xff; /* Max Efficiency Ratio */
/* Determine if this CPU has configurable TDP */
if (cpu_config_tdp_levels()) {
/* Set max ratio to nominal TDP ratio */
msr = rdmsr(MSR_CONFIG_TDP_NOMINAL);
ratio_max = msr.lo & 0xff;
} else {
/* Max Non-Turbo Ratio */
ratio_max = (msr.lo >> 8) & 0xff;
}
clock_max = ratio_max * IRONLAKE_BCLK + ratio_max / 3;
/* Calculate CPU TDP in mW */

8
src/cpu/intel/model_2065x/model_2065x.h
View File

@ -43,13 +43,6 @@
#define PKG_POWER_LIMIT_TIME_SHIFT 17
#define PKG_POWER_LIMIT_TIME_MASK 0x7f
#define IVB_CONFIG_TDP_MIN_CPUID 0x306a2
#define MSR_CONFIG_TDP_NOMINAL 0x648
#define MSR_CONFIG_TDP_LEVEL1 0x649
#define MSR_CONFIG_TDP_LEVEL2 0x64a
#define MSR_CONFIG_TDP_CONTROL 0x64b
#define MSR_TURBO_ACTIVATION_RATIO 0x64c
/* P-state configuration */
#define PSS_MAX_ENTRIES 16
#define PSS_RATIO_STEP 1
@ -61,7 +54,6 @@ void intel_model_2065x_finalize_smm(void);
/* Configure power limits for turbo mode */
void set_power_limits(u8 power_limit_1_time);
int cpu_config_tdp_levels(void);
/* Sanity check config options. */
#if (CONFIG_SMM_TSEG_SIZE <= CONFIG_SMM_RESERVED_SIZE)

22
src/cpu/intel/model_2065x/model_2065x_init.c
View File

@ -20,19 +20,6 @@
#include <cpu/intel/common/common.h>
#include <smp/node.h>
int cpu_config_tdp_levels(void)
{
msr_t platform_info;
/* Minimum CPU revision */
if (cpuid_eax(1) < IVB_CONFIG_TDP_MIN_CPUID)
return 0;
/* Bits 34:33 indicate how many levels supported */
platform_info = rdmsr(MSR_PLATFORM_INFO);
return (platform_info.hi >> 1) & 3;
}
static void configure_thermal_target(void)
{
struct cpu_intel_model_2065x_config *conf;
@ -77,19 +64,12 @@ static void set_max_ratio(void)
perf_ctl.hi = 0;
/* Check for configurable TDP option */
if (cpu_config_tdp_levels()) {
/* Set to nominal TDP ratio */
msr = rdmsr(MSR_CONFIG_TDP_NOMINAL);
perf_ctl.lo = (msr.lo & 0xff) << 8;
} else {
/* Platform Info bits 15:8 give max ratio */
msr = rdmsr(MSR_PLATFORM_INFO);
perf_ctl.lo = msr.lo & 0xff00;
}
wrmsr(IA32_PERF_CTL, perf_ctl);
printk(BIOS_DEBUG, "model_x06ax: frequency set to %d\n",
printk(BIOS_DEBUG, "model_x065x: frequency set to %d\n",
((perf_ctl.lo >> 8) & 0xff) * IRONLAKE_BCLK);
}