/* * Copyright 2010 Tilera Corporation. All Rights Reserved. * * 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. * * 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, GOOD TITLE or * NON INFRINGEMENT. See the GNU General Public License for * more details. */ #ifndef _ASM_TILE_SMP_H #define _ASM_TILE_SMP_H #ifdef CONFIG_SMP #include <asm/processor.h> #include <linux/cpumask.h> #include <linux/irqreturn.h> #include <hv/hypervisor.h> /* Set up this tile to support receiving hypervisor messages */ void init_messaging(void); /* Set up this tile to support receiving device interrupts and IPIs. */ void init_per_tile_IRQs(void); /* Send a message to processors specified in mask */ void send_IPI_many(const struct cpumask *mask, int tag); /* Send a message to all but the sending processor */ void send_IPI_allbutself(int tag); /* Send a message to a specific processor */ void send_IPI_single(int dest, int tag); /* Process an IPI message */ void evaluate_message(int tag); /* Boot a secondary cpu */ void online_secondary(void); /* Topology of the supervisor tile grid, and coordinates of boot processor */ extern HV_Topology smp_topology; /* Accessors for grid size */ #define smp_height (smp_topology.height) #define smp_width (smp_topology.width) /* Convenience functions for converting cpu <-> coords. */ static inline int cpu_x(int cpu) { return cpu % smp_width; } static inline int cpu_y(int cpu) { return cpu / smp_width; } static inline int xy_to_cpu(int x, int y) { return y * smp_width + x; } /* Hypervisor message tags sent via the tile send_IPI*() routines. */ #define MSG_TAG_START_CPU 1 #define MSG_TAG_STOP_CPU 2 #define MSG_TAG_CALL_FUNCTION_MANY 3 #define MSG_TAG_CALL_FUNCTION_SINGLE 4 #define MSG_TAG_IRQ_WORK 5 /* Hook for the generic smp_call_function_many() routine. */ static inline void arch_send_call_function_ipi_mask(struct cpumask *mask) { send_IPI_many(mask, MSG_TAG_CALL_FUNCTION_MANY); } /* Hook for the generic smp_call_function_single() routine. */ static inline void arch_send_call_function_single_ipi(int cpu) { send_IPI_single(cpu, MSG_TAG_CALL_FUNCTION_SINGLE); } /* Print out the boot string describing which cpus were disabled. */ void print_disabled_cpus(void); #else /* !CONFIG_SMP */ #define smp_master_cpu 0 #define smp_height 1 #define smp_width 1 #define cpu_x(cpu) 0 #define cpu_y(cpu) 0 #define xy_to_cpu(x, y) 0 #endif /* !CONFIG_SMP */ /* Which cpus may be used as the lotar in a page table entry. */ extern struct cpumask cpu_lotar_map; #define cpu_is_valid_lotar(cpu) cpumask_test_cpu((cpu), &cpu_lotar_map) /* Which processors are used for hash-for-home mapping */ extern struct cpumask hash_for_home_map; /* Which cpus can have their cache flushed by hv_flush_remote(). */ extern struct cpumask cpu_cacheable_map; #define cpu_cacheable(cpu) cpumask_test_cpu((cpu), &cpu_cacheable_map) /* Convert an HV_LOTAR value into a cpu. */ static inline int hv_lotar_to_cpu(HV_LOTAR lotar) { return HV_LOTAR_X(lotar) + (HV_LOTAR_Y(lotar) * smp_width); } /* * Extension of <linux/cpumask.h> functionality when you just want * to express a mask or suppression or inclusion region without * being too concerned about exactly which cpus are valid in that region. */ int bitmap_parselist_crop(const char *bp, unsigned long *maskp, int nmaskbits); #define cpulist_parse_crop(buf, dst) \ __cpulist_parse_crop((buf), (dst), NR_CPUS) static inline int __cpulist_parse_crop(const char *buf, struct cpumask *dstp, int nbits) { return bitmap_parselist_crop(buf, cpumask_bits(dstp), nbits); } /* Initialize the IPI subsystem. */ void ipi_init(void); /* Function for start-cpu message to cause us to jump to. */ extern unsigned long start_cpu_function_addr; #endif /* _ASM_TILE_SMP_H */
Name | Type | Size | Permission | Actions |
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Kbuild | File | 439 B | 0644 |
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asm-offsets.h | File | 35 B | 0644 |
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atomic.h | File | 5.14 KB | 0644 |
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atomic_32.h | File | 8.91 KB | 0644 |
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atomic_64.h | File | 5.51 KB | 0644 |
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backtrace.h | File | 3.98 KB | 0644 |
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barrier.h | File | 2.89 KB | 0644 |
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bitops.h | File | 2.37 KB | 0644 |
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bitops_32.h | File | 4.01 KB | 0644 |
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bitops_64.h | File | 2.67 KB | 0644 |
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cache.h | File | 2.6 KB | 0644 |
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cacheflush.h | File | 4.94 KB | 0644 |
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checksum.h | File | 1.23 KB | 0644 |
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cmpxchg.h | File | 3.47 KB | 0644 |
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compat.h | File | 7.38 KB | 0644 |
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current.h | File | 947 B | 0644 |
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delay.h | File | 1.1 KB | 0644 |
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device.h | File | 978 B | 0644 |
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div64.h | File | 319 B | 0644 |
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dma-mapping.h | File | 1.82 KB | 0644 |
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dma.h | File | 762 B | 0644 |
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elf.h | File | 5.42 KB | 0644 |
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fixmap.h | File | 2.73 KB | 0644 |
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ftrace.h | File | 1.08 KB | 0644 |
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futex.h | File | 4.23 KB | 0644 |
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hardirq.h | File | 1.28 KB | 0644 |
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hardwall.h | File | 1.08 KB | 0644 |
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highmem.h | File | 2.08 KB | 0644 |
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homecache.h | File | 4.21 KB | 0644 |
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hugetlb.h | File | 3.04 KB | 0644 |
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hv_driver.h | File | 1.92 KB | 0644 |
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ide.h | File | 758 B | 0644 |
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insn.h | File | 1.79 KB | 0644 |
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io.h | File | 12.43 KB | 0644 |
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irq.h | File | 3.11 KB | 0644 |
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irq_work.h | File | 283 B | 0644 |
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irqflags.h | File | 10.55 KB | 0644 |
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jump_label.h | File | 1.47 KB | 0644 |
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kdebug.h | File | 769 B | 0644 |
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kexec.h | File | 2.23 KB | 0644 |
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kgdb.h | File | 1.99 KB | 0644 |
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kmap_types.h | File | 1.02 KB | 0644 |
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kprobes.h | File | 2.19 KB | 0644 |
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linkage.h | File | 1.46 KB | 0644 |
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mmu.h | File | 965 B | 0644 |
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mmu_context.h | File | 4.5 KB | 0644 |
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mmzone.h | File | 2.07 KB | 0644 |
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module.h | File | 1.12 KB | 0644 |
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page.h | File | 10.32 KB | 0644 |
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pci.h | File | 6.58 KB | 0644 |
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percpu.h | File | 1.79 KB | 0644 |
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perf_event.h | File | 766 B | 0644 |
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pgalloc.h | File | 4.76 KB | 0644 |
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pgtable.h | File | 15.66 KB | 0644 |
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pgtable_32.h | File | 4.08 KB | 0644 |
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pgtable_64.h | File | 5.11 KB | 0644 |
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pmc.h | File | 2.15 KB | 0644 |
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processor.h | File | 10.62 KB | 0644 |
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ptrace.h | File | 2.96 KB | 0644 |
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sections.h | File | 1.37 KB | 0644 |
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setup.h | File | 1.63 KB | 0644 |
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sigframe.h | File | 956 B | 0644 |
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signal.h | File | 1.07 KB | 0644 |
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smp.h | File | 3.98 KB | 0644 |
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spinlock.h | File | 741 B | 0644 |
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spinlock_32.h | File | 2.9 KB | 0644 |
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spinlock_64.h | File | 3.88 KB | 0644 |
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spinlock_types.h | File | 1.58 KB | 0644 |
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stack.h | File | 2.59 KB | 0644 |
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string.h | File | 1.19 KB | 0644 |
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switch_to.h | File | 2.75 KB | 0644 |
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syscall.h | File | 2.88 KB | 0644 |
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syscalls.h | File | 2.35 KB | 0644 |
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thread_info.h | File | 5.54 KB | 0644 |
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tile-desc.h | File | 650 B | 0644 |
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tile-desc_32.h | File | 12.54 KB | 0644 |
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tile-desc_64.h | File | 10.83 KB | 0644 |
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timex.h | File | 1.71 KB | 0644 |
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tlb.h | File | 878 B | 0644 |
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tlbflush.h | File | 3.99 KB | 0644 |
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topology.h | File | 1.52 KB | 0644 |
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traps.h | File | 2.44 KB | 0644 |
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uaccess.h | File | 12.77 KB | 0644 |
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unaligned.h | File | 1.56 KB | 0644 |
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unistd.h | File | 777 B | 0644 |
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user.h | File | 717 B | 0644 |
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vdso.h | File | 1.84 KB | 0644 |
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vga.h | File | 1.05 KB | 0644 |
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word-at-a-time.h | File | 1.07 KB | 0644 |
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