/* SPDX-License-Identifier: GPL-2.0 */ /* * SMP Support * * Copyright (C) 1999 VA Linux Systems * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> * (c) Copyright 2001-2003, 2005 Hewlett-Packard Development Company, L.P. * David Mosberger-Tang <davidm@hpl.hp.com> * Bjorn Helgaas <bjorn.helgaas@hp.com> */ #ifndef _ASM_IA64_SMP_H #define _ASM_IA64_SMP_H #include <linux/init.h> #include <linux/threads.h> #include <linux/kernel.h> #include <linux/cpumask.h> #include <linux/bitops.h> #include <linux/irqreturn.h> #include <asm/io.h> #include <asm/param.h> #include <asm/processor.h> #include <asm/ptrace.h> static inline unsigned int ia64_get_lid (void) { union { struct { unsigned long reserved : 16; unsigned long eid : 8; unsigned long id : 8; unsigned long ignored : 32; } f; unsigned long bits; } lid; lid.bits = ia64_getreg(_IA64_REG_CR_LID); return lid.f.id << 8 | lid.f.eid; } #define hard_smp_processor_id() ia64_get_lid() #ifdef CONFIG_SMP #define XTP_OFFSET 0x1e0008 #define SMP_IRQ_REDIRECTION (1 << 0) #define SMP_IPI_REDIRECTION (1 << 1) #define raw_smp_processor_id() (current_thread_info()->cpu) extern struct smp_boot_data { int cpu_count; int cpu_phys_id[NR_CPUS]; } smp_boot_data __initdata; extern char no_int_routing; extern cpumask_t cpu_core_map[NR_CPUS]; DECLARE_PER_CPU_SHARED_ALIGNED(cpumask_t, cpu_sibling_map); extern int smp_num_siblings; extern void __iomem *ipi_base_addr; extern unsigned char smp_int_redirect; extern volatile int ia64_cpu_to_sapicid[]; #define cpu_physical_id(i) ia64_cpu_to_sapicid[i] extern unsigned long ap_wakeup_vector; /* * Function to map hard smp processor id to logical id. Slow, so don't use this in * performance-critical code. */ static inline int cpu_logical_id (int cpuid) { int i; for (i = 0; i < NR_CPUS; ++i) if (cpu_physical_id(i) == cpuid) break; return i; } /* * XTP control functions: * min_xtp : route all interrupts to this CPU * normal_xtp: nominal XTP value * max_xtp : never deliver interrupts to this CPU. */ static inline void min_xtp (void) { if (smp_int_redirect & SMP_IRQ_REDIRECTION) writeb(0x00, ipi_base_addr + XTP_OFFSET); /* XTP to min */ } static inline void normal_xtp (void) { if (smp_int_redirect & SMP_IRQ_REDIRECTION) writeb(0x08, ipi_base_addr + XTP_OFFSET); /* XTP normal */ } static inline void max_xtp (void) { if (smp_int_redirect & SMP_IRQ_REDIRECTION) writeb(0x0f, ipi_base_addr + XTP_OFFSET); /* Set XTP to max */ } /* Upping and downing of CPUs */ extern int __cpu_disable (void); extern void __cpu_die (unsigned int cpu); extern void cpu_die (void) __attribute__ ((noreturn)); extern void __init smp_build_cpu_map(void); extern void __init init_smp_config (void); extern void smp_do_timer (struct pt_regs *regs); extern irqreturn_t handle_IPI(int irq, void *dev_id); extern void smp_send_reschedule (int cpu); extern void identify_siblings (struct cpuinfo_ia64 *); extern int is_multithreading_enabled(void); extern void arch_send_call_function_single_ipi(int cpu); extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); #else /* CONFIG_SMP */ #define cpu_logical_id(i) 0 #define cpu_physical_id(i) ia64_get_lid() #endif /* CONFIG_SMP */ #endif /* _ASM_IA64_SMP_H */
Name | Type | Size | Permission | Actions |
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native | Folder | 0755 |
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sn | Folder | 0755 |
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uv | Folder | 0755 |
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Kbuild | File | 224 B | 0644 |
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acenv.h | File | 1.27 KB | 0644 |
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acpi-ext.h | File | 590 B | 0644 |
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acpi.h | File | 4.1 KB | 0644 |
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agp.h | File | 857 B | 0644 |
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asm-offsets.h | File | 35 B | 0644 |
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asm-prototypes.h | File | 890 B | 0644 |
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asmmacro.h | File | 3.29 KB | 0644 |
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atomic.h | File | 9.47 KB | 0644 |
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barrier.h | File | 2.36 KB | 0644 |
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bitops.h | File | 10.84 KB | 0644 |
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bug.h | File | 404 B | 0644 |
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bugs.h | File | 436 B | 0644 |
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cache.h | File | 771 B | 0644 |
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cacheflush.h | File | 1.71 KB | 0644 |
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checksum.h | File | 2.1 KB | 0644 |
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clocksource.h | File | 276 B | 0644 |
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cpu.h | File | 456 B | 0644 |
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cputime.h | File | 855 B | 0644 |
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current.h | File | 418 B | 0644 |
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cyclone.h | File | 442 B | 0644 |
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delay.h | File | 1.7 KB | 0644 |
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device.h | File | 323 B | 0644 |
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div64.h | File | 31 B | 0644 |
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dma-mapping.h | File | 1.17 KB | 0644 |
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dma.h | File | 466 B | 0644 |
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dmi.h | File | 343 B | 0644 |
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early_ioremap.h | File | 428 B | 0644 |
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elf.h | File | 9.83 KB | 0644 |
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emergency-restart.h | File | 149 B | 0644 |
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esi.h | File | 887 B | 0644 |
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exception.h | File | 1.13 KB | 0644 |
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export.h | File | 115 B | 0644 |
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extable.h | File | 330 B | 0644 |
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fb.h | File | 569 B | 0644 |
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fpswa.h | File | 1.88 KB | 0644 |
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ftrace.h | File | 748 B | 0644 |
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futex.h | File | 2.56 KB | 0644 |
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gcc_intrin.h | File | 368 B | 0644 |
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hardirq.h | File | 564 B | 0644 |
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hpsim.h | File | 364 B | 0644 |
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hugetlb.h | File | 1.67 KB | 0644 |
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hw_irq.h | File | 6.33 KB | 0644 |
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idle.h | File | 200 B | 0644 |
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intrinsics.h | File | 306 B | 0644 |
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io.h | File | 11.77 KB | 0644 |
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iommu.h | File | 555 B | 0644 |
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iommu_table.h | File | 175 B | 0644 |
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iosapic.h | File | 3.16 KB | 0644 |
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irq.h | File | 1.02 KB | 0644 |
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irq_regs.h | File | 34 B | 0644 |
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irq_remapping.h | File | 142 B | 0644 |
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irqflags.h | File | 2.11 KB | 0644 |
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kdebug.h | File | 1.64 KB | 0644 |
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kexec.h | File | 1.57 KB | 0644 |
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kmap_types.h | File | 260 B | 0644 |
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kprobes.h | File | 3.82 KB | 0644 |
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kregs.h | File | 6.73 KB | 0644 |
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libata-portmap.h | File | 225 B | 0644 |
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linkage.h | File | 398 B | 0644 |
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local.h | File | 31 B | 0644 |
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local64.h | File | 33 B | 0644 |
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machvec.h | File | 12.1 KB | 0644 |
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machvec_dig.h | File | 449 B | 0644 |
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machvec_dig_vtd.h | File | 558 B | 0644 |
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machvec_hpsim.h | File | 544 B | 0644 |
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machvec_hpzx1.h | File | 544 B | 0644 |
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machvec_hpzx1_swiotlb.h | File | 632 B | 0644 |
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machvec_init.h | File | 1.33 KB | 0644 |
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machvec_sn2.h | File | 4.71 KB | 0644 |
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machvec_uv.h | File | 684 B | 0644 |
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mca.h | File | 5.91 KB | 0644 |
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mca_asm.h | File | 7.18 KB | 0644 |
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meminit.h | File | 2.24 KB | 0644 |
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mman.h | File | 432 B | 0644 |
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mmu.h | File | 374 B | 0644 |
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mmu_context.h | File | 5.29 KB | 0644 |
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mmzone.h | File | 1.1 KB | 0644 |
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module.h | File | 1.1 KB | 0644 |
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msidef.h | File | 1.4 KB | 0644 |
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nodedata.h | File | 1.85 KB | 0644 |
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numa.h | File | 2.18 KB | 0644 |
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page.h | File | 6.49 KB | 0644 |
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pal.h | File | 53.39 KB | 0644 |
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param.h | File | 439 B | 0644 |
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parport.h | File | 534 B | 0644 |
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patch.h | File | 1.19 KB | 0644 |
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pci.h | File | 2.83 KB | 0644 |
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percpu.h | File | 1.32 KB | 0644 |
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perfmon.h | File | 4.33 KB | 0644 |
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pgalloc.h | File | 2.84 KB | 0644 |
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pgtable.h | File | 20.92 KB | 0644 |
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processor.h | File | 17.98 KB | 0644 |
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ptrace.h | File | 5.2 KB | 0644 |
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rwsem.h | File | 3.82 KB | 0644 |
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sal.h | File | 26.51 KB | 0644 |
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sections.h | File | 1.35 KB | 0644 |
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segment.h | File | 162 B | 0644 |
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serial.h | File | 446 B | 0644 |
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shmparam.h | File | 445 B | 0644 |
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signal.h | File | 749 B | 0644 |
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smp.h | File | 3.21 KB | 0644 |
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sparsemem.h | File | 621 B | 0644 |
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spinlock.h | File | 6.92 KB | 0644 |
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spinlock_types.h | File | 475 B | 0644 |
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string.h | File | 659 B | 0644 |
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swiotlb.h | File | 344 B | 0644 |
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switch_to.h | File | 2.89 KB | 0644 |
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syscall.h | File | 2.06 KB | 0644 |
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termios.h | File | 1.88 KB | 0644 |
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thread_info.h | File | 4.66 KB | 0644 |
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timex.h | File | 1.47 KB | 0644 |
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tlb.h | File | 8.42 KB | 0644 |
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tlbflush.h | File | 2.33 KB | 0644 |
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topology.h | File | 1.58 KB | 0644 |
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types.h | File | 828 B | 0644 |
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uaccess.h | File | 9.86 KB | 0644 |
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unaligned.h | File | 337 B | 0644 |
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uncached.h | File | 463 B | 0644 |
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unistd.h | File | 1.45 KB | 0644 |
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unwind.h | File | 5.74 KB | 0644 |
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user.h | File | 2.25 KB | 0644 |
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ustack.h | File | 403 B | 0644 |
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vga.h | File | 657 B | 0644 |
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xor.h | File | 1.12 KB | 0644 |
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