cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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acpi.h (2772B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/*
      3 *  Copyright (C) 1999 VA Linux Systems
      4 *  Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
      5 *  Copyright (C) 2000,2001 J.I. Lee <jung-ik.lee@intel.com>
      6 *  Copyright (C) 2001,2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
      7 */
      8
      9#ifndef _ASM_ACPI_H
     10#define _ASM_ACPI_H
     11
     12#ifdef __KERNEL__
     13
     14#include <acpi/pdc_intel.h>
     15
     16#include <linux/init.h>
     17#include <linux/numa.h>
     18#include <asm/numa.h>
     19
     20
     21extern int acpi_lapic;
     22#define acpi_disabled 0	/* ACPI always enabled on IA64 */
     23#define acpi_noirq 0	/* ACPI always enabled on IA64 */
     24#define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
     25#define acpi_strict 1	/* no ACPI spec workarounds on IA64 */
     26
     27static inline bool acpi_has_cpu_in_madt(void)
     28{
     29	return !!acpi_lapic;
     30}
     31
     32#define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
     33static inline void disable_acpi(void) { }
     34
     35int acpi_request_vector (u32 int_type);
     36int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
     37
     38/* Low-level suspend routine. */
     39extern int acpi_suspend_lowlevel(void);
     40
     41static inline unsigned long acpi_get_wakeup_address(void)
     42{
     43	return 0;
     44}
     45
     46/*
     47 * Record the cpei override flag and current logical cpu. This is
     48 * useful for CPU removal.
     49 */
     50extern unsigned int can_cpei_retarget(void);
     51extern unsigned int is_cpu_cpei_target(unsigned int cpu);
     52extern void set_cpei_target_cpu(unsigned int cpu);
     53extern unsigned int get_cpei_target_cpu(void);
     54extern void prefill_possible_map(void);
     55#ifdef CONFIG_ACPI_HOTPLUG_CPU
     56extern int additional_cpus;
     57#else
     58#define additional_cpus 0
     59#endif
     60
     61#ifdef CONFIG_ACPI_NUMA
     62#if MAX_NUMNODES > 256
     63#define MAX_PXM_DOMAINS MAX_NUMNODES
     64#else
     65#define MAX_PXM_DOMAINS (256)
     66#endif
     67extern int pxm_to_nid_map[MAX_PXM_DOMAINS];
     68extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
     69#endif
     70
     71static inline bool arch_has_acpi_pdc(void) { return true; }
     72static inline void arch_acpi_set_pdc_bits(u32 *buf)
     73{
     74	buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP;
     75}
     76
     77#ifdef CONFIG_ACPI_NUMA
     78extern cpumask_t early_cpu_possible_map;
     79#define for_each_possible_early_cpu(cpu)  \
     80	for_each_cpu((cpu), &early_cpu_possible_map)
     81
     82static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus)
     83{
     84	int low_cpu, high_cpu;
     85	int cpu;
     86	int next_nid = 0;
     87
     88	low_cpu = cpumask_weight(&early_cpu_possible_map);
     89
     90	high_cpu = max(low_cpu, min_cpus);
     91	high_cpu = min(high_cpu + reserve_cpus, NR_CPUS);
     92
     93	for (cpu = low_cpu; cpu < high_cpu; cpu++) {
     94		cpumask_set_cpu(cpu, &early_cpu_possible_map);
     95		if (node_cpuid[cpu].nid == NUMA_NO_NODE) {
     96			node_cpuid[cpu].nid = next_nid;
     97			next_nid++;
     98			if (next_nid >= num_online_nodes())
     99				next_nid = 0;
    100		}
    101	}
    102}
    103
    104extern void acpi_numa_fixup(void);
    105
    106#endif /* CONFIG_ACPI_NUMA */
    107
    108#endif /*__KERNEL__*/
    109
    110#endif /*_ASM_ACPI_H*/