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authorAlexandru Gagniuc <mr.nuke.me@gmail.com>2015-10-03 13:49:23 -0700
committerAlexandru Gagniuc <mr.nuke.me@gmail.com>2015-10-03 22:23:54 +0000
commit959478a763c16688d43752adbae2c76e7764da45 (patch)
tree2341da5033876b7358df78c9d570015794e9296f /src/cpu/intel/fsp_model_406dx/acpi.c
parentfb50124d22014742b6990a95df87a7a828e891b6 (diff)
Remove FSP Rangeley SOC and mohonpeak board support
mohonpeak is the reference board for Rangeley. I doubt anyone uses it or cares about it. We jokingly refer to it as "Moron Peak". It's code with no known users, so we shouldn't be hauling it around for the eventuality that someone might use it in the future. Change-Id: Id3c9fc39e1b98707d96a95f2a914de6bbb31c615 Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-on: http://review.coreboot.org/11790 Tested-by: build bot (Jenkins) Reviewed-by: Philipp Deppenwiese <zaolin@das-labor.org>
Diffstat (limited to 'src/cpu/intel/fsp_model_406dx/acpi.c')
-rw-r--r--src/cpu/intel/fsp_model_406dx/acpi.c306
1 files changed, 0 insertions, 306 deletions
diff --git a/src/cpu/intel/fsp_model_406dx/acpi.c b/src/cpu/intel/fsp_model_406dx/acpi.c
deleted file mode 100644
index abc35ad92a..0000000000
--- a/src/cpu/intel/fsp_model_406dx/acpi.c
+++ /dev/null
@@ -1,306 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2009 coresystems GmbH
- * Copyright (C) 2011 The Chromium OS Authors. All rights reserved.
- * Copyright (C) 2013 Sage Electronic Engineering, LLC.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc.
- */
-
-#include <types.h>
-#include <console/console.h>
-#include <arch/acpi.h>
-#include <arch/acpigen.h>
-#include <arch/cpu.h>
-#include <cpu/x86/msr.h>
-#include <cpu/intel/speedstep.h>
-#include <cpu/intel/turbo.h>
-#include <device/device.h>
-#include <device/pci.h>
-#include "model_406dx.h"
-#include "chip.h"
-
-static int get_cores_per_package(void)
-{
- struct cpuinfo_x86 c;
- struct cpuid_result result;
- int cores = 1;
-
- get_fms(&c, cpuid_eax(1));
- if (c.x86 != 6)
- return 1;
-
- result = cpuid_ext(0xb, 1);
- cores = result.ebx & 0xff;
-
- return cores;
-}
-
-static void generate_C_state_entries(void)
-{
- struct cpu_info *info;
- struct cpu_driver *cpu;
- struct device *lapic;
- struct cpu_intel_model_406dx_config *conf = NULL;
-
- /* Find the SpeedStep CPU in the device tree using magic APIC ID */
- lapic = dev_find_lapic(SPEEDSTEP_APIC_MAGIC);
- if (!lapic)
- return;
- conf = lapic->chip_info;
- if (!conf)
- return;
-
- /* Find CPU map of supported C-states */
- info = cpu_info();
- if (!info)
- return;
- cpu = find_cpu_driver(info->cpu);
- if (!cpu || !cpu->cstates)
- return;
-
- acpigen_emit_byte(0x14); /* MethodOp */
- acpigen_write_len_f(); /* PkgLength */
- acpigen_emit_namestring("_CST");
- acpigen_emit_byte(0x00); /* No Arguments */
-
- /* If running on AC power */
- acpigen_emit_byte(0xa0); /* IfOp */
- acpigen_write_len_f(); /* PkgLength */
- acpigen_emit_namestring("PWRS");
- acpigen_emit_byte(0xa4); /* ReturnOp */
- acpigen_pop_len();
-
- /* Else on battery power */
- acpigen_emit_byte(0xa4); /* ReturnOp */
- acpigen_pop_len();
-}
-
-static acpi_tstate_t tss_table_fine[] = {
- { 100, 1000, 0, 0x00, 0 },
- { 94, 940, 0, 0x1f, 0 },
- { 88, 880, 0, 0x1e, 0 },
- { 82, 820, 0, 0x1d, 0 },
- { 75, 760, 0, 0x1c, 0 },
- { 69, 700, 0, 0x1b, 0 },
- { 63, 640, 0, 0x1a, 0 },
- { 57, 580, 0, 0x19, 0 },
- { 50, 520, 0, 0x18, 0 },
- { 44, 460, 0, 0x17, 0 },
- { 38, 400, 0, 0x16, 0 },
- { 32, 340, 0, 0x15, 0 },
- { 25, 280, 0, 0x14, 0 },
- { 19, 220, 0, 0x13, 0 },
- { 13, 160, 0, 0x12, 0 },
-};
-
-static acpi_tstate_t tss_table_coarse[] = {
- { 100, 1000, 0, 0x00, 0 },
- { 88, 875, 0, 0x1f, 0 },
- { 75, 750, 0, 0x1e, 0 },
- { 63, 625, 0, 0x1d, 0 },
- { 50, 500, 0, 0x1c, 0 },
- { 38, 375, 0, 0x1b, 0 },
- { 25, 250, 0, 0x1a, 0 },
- { 13, 125, 0, 0x19, 0 },
-};
-
-static void generate_T_state_entries(int core, int cores_per_package)
-{
- /* Indicate SW_ALL coordination for T-states */
- acpigen_write_TSD_package(core, cores_per_package, SW_ALL);
-
- /* Indicate FFixedHW so OS will use MSR */
- acpigen_write_empty_PTC();
-
- /* Set a T-state limit that can be modified in NVS */
- acpigen_write_TPC("\\TLVL");
-
- /*
- * CPUID.(EAX=6):EAX[5] indicates support
- * for extended throttle levels.
- */
- if (cpuid_eax(6) & (1 << 5))
- acpigen_write_TSS_package(
- ARRAY_SIZE(tss_table_fine), tss_table_fine);
- else
- acpigen_write_TSS_package(
- ARRAY_SIZE(tss_table_coarse), tss_table_coarse);
-}
-
-static int calculate_power(int tdp, int p1_ratio, int ratio)
-{
- u32 m;
- u32 power;
-
- /*
- * M = ((1.1 - ((p1_ratio - ratio) * 0.00625)) / 1.1) ^ 2
- *
- * Power = (ratio / p1_ratio) * m * tdp
- */
-
- m = (110000 - ((p1_ratio - ratio) * 625)) / 11;
- m = (m * m) / 1000;
-
- power = ((ratio * 100000 / p1_ratio) / 100);
- power *= (m / 100) * (tdp / 1000);
- power /= 1000;
-
- return (int)power;
-}
-
-static void generate_P_state_entries(int core, int cores_per_package)
-{
- int ratio_min, ratio_max, ratio_turbo, ratio_step;
- int coord_type, power_max, num_entries;
- int ratio, power, clock, clock_max;
- msr_t msr;
-
- /* Rangeley uses hardware only control */
- coord_type = HW_ALL;
-
- /* Get bus ratio limits and calculate clock speeds */
- 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 * RANGELEY_BCLK;
-
- /* Calculate CPU TDP in mW */
- msr = rdmsr(MSR_PKG_POWER_SKU_UNIT);
- power_max = 2 << ((msr.lo & 0xf) - 1);
-
-
- /* Write _PCT indicating use of FFixedHW */
- acpigen_write_empty_PCT();
-
- /* Write _PPC with no limit on supported P-state */
- acpigen_write_PPC_NVS();
-
- /* Write PSD indicating configured coordination type */
- acpigen_write_PSD_package(core, cores_per_package, coord_type);
-
- /* Add P-state entries in _PSS table */
- acpigen_write_name("_PSS");
-
- /* Determine ratio points */
- ratio_step = PSS_RATIO_STEP;
- num_entries = (ratio_max - ratio_min) / ratio_step;
- while (num_entries > PSS_MAX_ENTRIES-1) {
- ratio_step <<= 1;
- num_entries >>= 1;
- }
-
- /* P[T] is Turbo state if enabled */
- if (get_turbo_state() == TURBO_ENABLED) {
- /* _PSS package count including Turbo */
- acpigen_write_package(num_entries + 2);
-
- msr = rdmsr(MSR_TURBO_RATIO_LIMIT);
- ratio_turbo = msr.lo & 0xff;
-
- /* Add entry for Turbo ratio */
- acpigen_write_PSS_package(
- clock_max + 1, /*MHz*/
- power_max, /*mW*/
- PSS_LATENCY_TRANSITION, /*lat1*/
- PSS_LATENCY_BUSMASTER, /*lat2*/
- ratio_turbo << 8, /*control*/
- ratio_turbo << 8); /*status*/
- } else {
- /* _PSS package count without Turbo */
- acpigen_write_package(num_entries + 1);
- }
-
- /* First regular entry is max non-turbo ratio */
- acpigen_write_PSS_package(
- clock_max, /*MHz*/
- power_max, /*mW*/
- PSS_LATENCY_TRANSITION, /*lat1*/
- PSS_LATENCY_BUSMASTER, /*lat2*/
- ratio_max << 8, /*control*/
- ratio_max << 8); /*status*/
-
- /* Generate the remaining entries */
- for (ratio = ratio_min + ((num_entries - 1) * ratio_step);
- ratio >= ratio_min; ratio -= ratio_step) {
-
- /* Calculate power at this ratio */
- power = calculate_power(power_max, ratio_max, ratio);
- clock = ratio * RANGELEY_BCLK;
-
- acpigen_write_PSS_package(
- clock, /*MHz*/
- power, /*mW*/
- PSS_LATENCY_TRANSITION, /*lat1*/
- PSS_LATENCY_BUSMASTER, /*lat2*/
- ratio << 8, /*control*/
- ratio << 8); /*status*/
- }
-
- /* Fix package length */
- acpigen_pop_len();
-}
-
-void generate_cpu_entries(device_t device)
-{
- int coreID, cpuID, pcontrol_blk = PMB0_BASE, plen = 6;
- int totalcores = dev_count_cpu();
- int cores_per_package = get_cores_per_package();
- int numcpus = totalcores/cores_per_package;
-
- printk(BIOS_DEBUG, "Found %d CPU(s) with %d core(s) each.\n",
- numcpus, cores_per_package);
-
- for (cpuID = 1; cpuID <= numcpus; cpuID++) {
- for (coreID=1; coreID<=cores_per_package; coreID++) {
- if (coreID>1) {
- pcontrol_blk = 0;
- plen = 0;
- }
-
- /* Generate processor \_PR.CPUx */
- acpigen_write_processor(
- (cpuID-1)*cores_per_package+coreID-1,
- pcontrol_blk, plen);
-
- /* Generate P-state tables */
- generate_P_state_entries(
- cpuID-1, cores_per_package);
-
- /* Generate C-state tables */
- generate_C_state_entries();
-
- /* Generate T-state tables */
- generate_T_state_entries(
- cpuID-1, cores_per_package);
-
- acpigen_pop_len();
- }
- }
-}
-
-struct chip_operations cpu_intel_model_406dx_ops = {
- CHIP_NAME("Intel Rangeley CPU")
-};