diff options
| -rw-r--r-- | arch/arm64/include/asm/fixmap.h | 7 | ||||
| -rw-r--r-- | arch/arm64/include/asm/smp.h | 7 | ||||
| -rw-r--r-- | arch/arm64/kernel/setup.c | 8 | ||||
| -rw-r--r-- | arch/arm64/kernel/smp.c | 6 |
4 files changed, 19 insertions, 9 deletions
diff --git a/arch/arm64/include/asm/fixmap.h b/arch/arm64/include/asm/fixmap.h index f987b8a8f325..4335800201c9 100644 --- a/arch/arm64/include/asm/fixmap.h +++ b/arch/arm64/include/asm/fixmap.h @@ -28,10 +28,9 @@ * compile time, but to set the physical address only * in the boot process. * - * These 'compile-time allocated' memory buffers are - * page-sized. Use set_fixmap(idx,phys) to associate - * physical memory with fixmap indices. - * + * Each enum increment in these 'compile-time allocated' + * memory buffers is page-sized. Use set_fixmap(idx,phys) + * to associate physical memory with a fixmap index. */ enum fixed_addresses { FIX_HOLE, diff --git a/arch/arm64/include/asm/smp.h b/arch/arm64/include/asm/smp.h index a0c8a0b65259..0eadbf933e35 100644 --- a/arch/arm64/include/asm/smp.h +++ b/arch/arm64/include/asm/smp.h @@ -46,7 +46,12 @@ DECLARE_PER_CPU_READ_MOSTLY(int, cpu_number); * Logical CPU mapping. */ extern u64 __cpu_logical_map[NR_CPUS]; -#define cpu_logical_map(cpu) __cpu_logical_map[cpu] +extern u64 cpu_logical_map(int cpu); + +static inline void set_cpu_logical_map(int cpu, u64 hwid) +{ + __cpu_logical_map[cpu] = hwid; +} struct seq_file; diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 87e81d29e6fb..77c4c9bad1b8 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -85,7 +85,7 @@ u64 __cacheline_aligned boot_args[4]; void __init smp_setup_processor_id(void) { u64 mpidr = read_cpuid_mpidr() & MPIDR_HWID_BITMASK; - cpu_logical_map(0) = mpidr; + set_cpu_logical_map(0, mpidr); /* * clear __my_cpu_offset on boot CPU to avoid hang caused by @@ -276,6 +276,12 @@ arch_initcall(reserve_memblock_reserved_regions); u64 __cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID }; +u64 cpu_logical_map(int cpu) +{ + return __cpu_logical_map[cpu]; +} +EXPORT_SYMBOL_GPL(cpu_logical_map); + void __init __no_sanitize_address setup_arch(char **cmdline_p) { init_mm.start_code = (unsigned long) _text; diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 8059d50bc8cb..03957a1ae6c0 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -566,7 +566,7 @@ acpi_map_gic_cpu_interface(struct acpi_madt_generic_interrupt *processor) return; /* map the logical cpu id to cpu MPIDR */ - cpu_logical_map(cpu_count) = hwid; + set_cpu_logical_map(cpu_count, hwid); cpu_madt_gicc[cpu_count] = *processor; @@ -680,7 +680,7 @@ static void __init of_parse_and_init_cpus(void) goto next; pr_debug("cpu logical map 0x%llx\n", hwid); - cpu_logical_map(cpu_count) = hwid; + set_cpu_logical_map(cpu_count, hwid); early_map_cpu_to_node(cpu_count, of_node_to_nid(dn)); next: @@ -721,7 +721,7 @@ void __init smp_init_cpus(void) for (i = 1; i < nr_cpu_ids; i++) { if (cpu_logical_map(i) != INVALID_HWID) { if (smp_cpu_setup(i)) - cpu_logical_map(i) = INVALID_HWID; + set_cpu_logical_map(i, INVALID_HWID); } } } |