soc/intel/common/block: Common ACPI

This patch adds the common acpi code.ACPI code is very similar
accross different intel chipsets.This patch is an effort to
move those code in common place so that it can be shared accross
different intel platforms instead of duplicating for each platform.
We are removing the common acpi files in src/soc/intel/common.
This removes the acpi.c file which was previously in
src/soc/common/acpi. The config for common acpi is
SOC_INTEL_COMMON_BLOCK_ACPI which can be defined in SOC's
Kconfig file in order to use the common ACPI code. This patch also
includes the changes in APL platform to use the common ACPI block.

TEST= Tested the patch as below:
1.Builds and system boots up with the patch.
2.Check all the ACPI tables are present in
  /sys/firmware/acpi/tables
3.Check SCI's are properly working as we are
  modifying the function to override madt.
4.Extract acpi tables like DSDT,APIC, FACP, FACS
  and decompile the by iasl and compare with good
  known tables.
5.Execute the extracted tables in aciexec to check
  acpi methods are working properly.

Change-Id: Ib6eb6fd5366e6e28fd81bc22d050b0efa05a2e5d
Signed-off-by: Shaunak Saha <shaunak.saha@intel.com>
Reviewed-on: https://review.coreboot.org/20630
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>

1 files changed, 0 insertions, 243 deletions

diff --git a/src/soc/intel/common/acpi/acpi.c b/src/soc/intel/common/acpi/acpi.c
deleted file mode 100644
index 0934dbd2ae..0000000000
--- a/src/soc/intel/common/acpi/acpi.c
+++ /dev/null
@@ -1,243 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2016 Intel Corporation.
- *
- * 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; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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.
- */
-#include <arch/acpi.h>
-#include <arch/acpigen.h>
-#include <arch/cpu.h>
-#include <cpu/intel/turbo.h>
-#include <cpu/x86/msr.h>
-#include <intelblocks/cpulib.h>
-#include <soc/intel/common/acpi.h>
-#include <soc/pm.h>
-
-#define MSR_PLATFORM_INFO		0xce
-#define MSR_TURBO_RATIO_LIMIT		0x1ad
-#define MSR_CONFIG_TDP_NOMINAL		0x648
-#define MSR_RAPL_POWER_UNIT		0x606
-#define MSR_PKG_POWER_INFO		0x614
-
-/* P-state configuration */
-#define PSS_MAX_ENTRIES			8
-#define PSS_RATIO_STEP			2
-#define PSS_LATENCY_TRANSITION		10
-#define PSS_LATENCY_BUSMASTER		10
-
-
-__attribute__((weak)) acpi_cstate_t *soc_get_cstate_map(int *entries)
-{
-	*entries = 0;
-	return NULL;
-}
-
-__attribute__((weak)) acpi_tstate_t *soc_get_tss_table(int *entries)
-{
-	*entries = 0;
-	return NULL;
-}
-
-__attribute__((weak)) uint16_t soc_get_acpi_base_address(void)
-{
-#define ACPI_BASE_ADDR 0x400
-	return ACPI_BASE_ADDR;
-}
-
-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 power;
-}
-
-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_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;
-
-	coord_type = cpu_get_coord_type();
-	ratio_min = cpu_get_min_ratio();
-	ratio_max = cpu_get_max_ratio();
-	clock_max = (ratio_max * cpu_get_bus_clock()) / KHz;
-
-	/* Calculate CPU TDP in mW */
-	power_max = cpu_get_power_max();
-
-	/* 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, 1, 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) + 1;
-	if (num_entries > PSS_MAX_ENTRIES) {
-		ratio_step += 1;
-		num_entries = ((ratio_max - ratio_min) / ratio_step) + 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);
-		ratio_turbo = cpu_get_max_turbo_ratio();
-
-		/* 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 * cpu_get_bus_clock()) / KHz;
-
-		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();
-}
-
-static void generate_c_state_entries(void)
-{
-	acpi_cstate_t *c_state_map;
-	int entries;
-
-	c_state_map = soc_get_cstate_map(&entries);
-
-	/* Generate C-state tables */
-	acpigen_write_CST_package(c_state_map, entries);
-}
-
-static void generate_t_state_entries(int core, int cores_per_package)
-{
-	acpi_tstate_t *soc_tss_table;
-	int entries;
-
-	soc_tss_table = soc_get_tss_table(&entries);
-	if (entries == 0)
-		return;
-
-	/* 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 NVS controlled T-state limit */
-	acpigen_write_TPC("\\TLVL");
-
-	/* Write TSS table for MSR access */
-	acpigen_write_TSS_package(entries, soc_tss_table);
-}
-
-void generate_cpu_entries(device_t device)
-{
-	int core_id, cpu_id, pcontrol_blk = soc_get_acpi_base_address();
-	int 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 (cpu_id = 0; cpu_id < numcpus; cpu_id++) {
-		for (core_id = 0; core_id < cores_per_package; core_id++) {
-			if (core_id > 0) {
-				pcontrol_blk = 0;
-				plen = 0;
-			}
-
-			/* Generate processor \_PR.CPUx */
-			acpigen_write_processor(
-				(cpu_id)*cores_per_package + core_id,
-				pcontrol_blk, plen);
-
-			/* Generate P-state tables */
-			generate_p_state_entries(
-				core_id, cores_per_package);
-
-			/* Generate C-state tables */
-			generate_c_state_entries();
-
-			/* Generate T-state tables */
-			generate_t_state_entries(
-				core_id, cores_per_package);
-
-			acpigen_pop_len();
-		}
-	}
-}