Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 198 insertions, 0 deletions

diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
new file mode 100644
index 0000000000..c31c633419
--- /dev/null
+++ b/arch/x86/include/asm/smp.h
@@ -0,0 +1,198 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_SMP_H
+#define _ASM_X86_SMP_H
+#ifndef __ASSEMBLY__
+#include <linux/cpumask.h>
+
+#include <asm/cpumask.h>
+#include <asm/current.h>
+#include <asm/thread_info.h>
+
+extern int smp_num_siblings;
+extern unsigned int num_processors;
+
+DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_sibling_map);
+DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_core_map);
+DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_die_map);
+/* cpus sharing the last level cache: */
+DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_llc_shared_map);
+DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_l2c_shared_map);
+DECLARE_PER_CPU_READ_MOSTLY(u16, cpu_llc_id);
+DECLARE_PER_CPU_READ_MOSTLY(u16, cpu_l2c_id);
+
+DECLARE_EARLY_PER_CPU_READ_MOSTLY(u16, x86_cpu_to_apicid);
+DECLARE_EARLY_PER_CPU_READ_MOSTLY(u32, x86_cpu_to_acpiid);
+
+struct task_struct;
+
+struct smp_ops {
+	void (*smp_prepare_boot_cpu)(void);
+	void (*smp_prepare_cpus)(unsigned max_cpus);
+	void (*smp_cpus_done)(unsigned max_cpus);
+
+	void (*stop_other_cpus)(int wait);
+	void (*crash_stop_other_cpus)(void);
+	void (*smp_send_reschedule)(int cpu);
+
+	void (*cleanup_dead_cpu)(unsigned cpu);
+	void (*poll_sync_state)(void);
+	int (*kick_ap_alive)(unsigned cpu, struct task_struct *tidle);
+	int (*cpu_disable)(void);
+	void (*cpu_die)(unsigned int cpu);
+	void (*play_dead)(void);
+
+	void (*send_call_func_ipi)(const struct cpumask *mask);
+	void (*send_call_func_single_ipi)(int cpu);
+};
+
+/* Globals due to paravirt */
+extern void set_cpu_sibling_map(int cpu);
+
+#ifdef CONFIG_SMP
+extern struct smp_ops smp_ops;
+
+static inline void smp_send_stop(void)
+{
+	smp_ops.stop_other_cpus(0);
+}
+
+static inline void stop_other_cpus(void)
+{
+	smp_ops.stop_other_cpus(1);
+}
+
+static inline void smp_prepare_boot_cpu(void)
+{
+	smp_ops.smp_prepare_boot_cpu();
+}
+
+static inline void smp_prepare_cpus(unsigned int max_cpus)
+{
+	smp_ops.smp_prepare_cpus(max_cpus);
+}
+
+static inline void smp_cpus_done(unsigned int max_cpus)
+{
+	smp_ops.smp_cpus_done(max_cpus);
+}
+
+static inline int __cpu_disable(void)
+{
+	return smp_ops.cpu_disable();
+}
+
+static inline void __cpu_die(unsigned int cpu)
+{
+	if (smp_ops.cpu_die)
+		smp_ops.cpu_die(cpu);
+}
+
+static inline void __noreturn play_dead(void)
+{
+	smp_ops.play_dead();
+	BUG();
+}
+
+static inline void arch_smp_send_reschedule(int cpu)
+{
+	smp_ops.smp_send_reschedule(cpu);
+}
+
+static inline void arch_send_call_function_single_ipi(int cpu)
+{
+	smp_ops.send_call_func_single_ipi(cpu);
+}
+
+static inline void arch_send_call_function_ipi_mask(const struct cpumask *mask)
+{
+	smp_ops.send_call_func_ipi(mask);
+}
+
+void cpu_disable_common(void);
+void native_smp_prepare_boot_cpu(void);
+void smp_prepare_cpus_common(void);
+void native_smp_prepare_cpus(unsigned int max_cpus);
+void calculate_max_logical_packages(void);
+void native_smp_cpus_done(unsigned int max_cpus);
+int common_cpu_up(unsigned int cpunum, struct task_struct *tidle);
+int native_kick_ap(unsigned int cpu, struct task_struct *tidle);
+int native_cpu_disable(void);
+void __noreturn hlt_play_dead(void);
+void native_play_dead(void);
+void play_dead_common(void);
+void wbinvd_on_cpu(int cpu);
+int wbinvd_on_all_cpus(void);
+
+void smp_kick_mwait_play_dead(void);
+
+void native_smp_send_reschedule(int cpu);
+void native_send_call_func_ipi(const struct cpumask *mask);
+void native_send_call_func_single_ipi(int cpu);
+
+void smp_store_cpu_info(int id);
+
+asmlinkage __visible void smp_reboot_interrupt(void);
+__visible void smp_reschedule_interrupt(struct pt_regs *regs);
+__visible void smp_call_function_interrupt(struct pt_regs *regs);
+__visible void smp_call_function_single_interrupt(struct pt_regs *r);
+
+#define cpu_physical_id(cpu)	per_cpu(x86_cpu_to_apicid, cpu)
+#define cpu_acpi_id(cpu)	per_cpu(x86_cpu_to_acpiid, cpu)
+
+/*
+ * This function is needed by all SMP systems. It must _always_ be valid
+ * from the initial startup.
+ */
+#define raw_smp_processor_id()  this_cpu_read(pcpu_hot.cpu_number)
+#define __smp_processor_id() __this_cpu_read(pcpu_hot.cpu_number)
+
+#ifdef CONFIG_X86_32
+extern int safe_smp_processor_id(void);
+#else
+# define safe_smp_processor_id()	smp_processor_id()
+#endif
+
+static inline struct cpumask *cpu_llc_shared_mask(int cpu)
+{
+	return per_cpu(cpu_llc_shared_map, cpu);
+}
+
+static inline struct cpumask *cpu_l2c_shared_mask(int cpu)
+{
+	return per_cpu(cpu_l2c_shared_map, cpu);
+}
+
+#else /* !CONFIG_SMP */
+#define wbinvd_on_cpu(cpu)     wbinvd()
+static inline int wbinvd_on_all_cpus(void)
+{
+	wbinvd();
+	return 0;
+}
+
+static inline struct cpumask *cpu_llc_shared_mask(int cpu)
+{
+	return (struct cpumask *)cpumask_of(0);
+}
+#endif /* CONFIG_SMP */
+
+extern unsigned disabled_cpus;
+
+#ifdef CONFIG_DEBUG_NMI_SELFTEST
+extern void nmi_selftest(void);
+#else
+#define nmi_selftest() do { } while (0)
+#endif
+
+extern unsigned int smpboot_control;
+extern unsigned long apic_mmio_base;
+
+#endif /* !__ASSEMBLY__ */
+
+/* Control bits for startup_64 */
+#define STARTUP_READ_APICID	0x80000000
+
+/* Top 8 bits are reserved for control */
+#define STARTUP_PARALLEL_MASK	0xFF000000
+
+#endif /* _ASM_X86_SMP_H */