diff options
Diffstat (limited to 'arch/arm/include/asm')
| -rw-r--r-- | arch/arm/include/asm/cputype.h | 6 | ||||
| -rw-r--r-- | arch/arm/include/asm/dma-mapping.h | 7 | ||||
| -rw-r--r-- | arch/arm/include/asm/entry-macro-multi.S | 7 | ||||
| -rw-r--r-- | arch/arm/include/asm/exception.h | 19 | ||||
| -rw-r--r-- | arch/arm/include/asm/hardirq.h | 3 | ||||
| -rw-r--r-- | arch/arm/include/asm/hardware/entry-macro-gic.S | 19 | ||||
| -rw-r--r-- | arch/arm/include/asm/hardware/gic.h | 9 | ||||
| -rw-r--r-- | arch/arm/include/asm/hw_breakpoint.h | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/localtimer.h | 19 | ||||
| -rw-r--r-- | arch/arm/include/asm/mach/arch.h | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/mach/map.h | 1 | ||||
| -rw-r--r-- | arch/arm/include/asm/memory.h | 25 | ||||
| -rw-r--r-- | arch/arm/include/asm/module.h | 4 | ||||
| -rw-r--r-- | arch/arm/include/asm/pgtable.h | 3 | ||||
| -rw-r--r-- | arch/arm/include/asm/pmu.h | 93 | ||||
| -rw-r--r-- | arch/arm/include/asm/proc-fns.h | 8 | ||||
| -rw-r--r-- | arch/arm/include/asm/smp.h | 16 | ||||
| -rw-r--r-- | arch/arm/include/asm/smp_twd.h | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/suspend.h | 17 | ||||
| -rw-r--r-- | arch/arm/include/asm/system.h | 7 | ||||
| -rw-r--r-- | arch/arm/include/asm/topology.h | 33 |
21 files changed, 194 insertions, 108 deletions
diff --git a/arch/arm/include/asm/cputype.h b/arch/arm/include/asm/cputype.h index cd4458f..cb47d28 100644 --- a/arch/arm/include/asm/cputype.h +++ b/arch/arm/include/asm/cputype.h @@ -8,6 +8,7 @@ #define CPUID_CACHETYPE 1 #define CPUID_TCM 2 #define CPUID_TLBTYPE 3 +#define CPUID_MPIDR 5 #define CPUID_EXT_PFR0 "c1, 0" #define CPUID_EXT_PFR1 "c1, 1" @@ -70,6 +71,11 @@ static inline unsigned int __attribute_const__ read_cpuid_tcmstatus(void) return read_cpuid(CPUID_TCM); } +static inline unsigned int __attribute_const__ read_cpuid_mpidr(void) +{ + return read_cpuid(CPUID_MPIDR); +} + /* * Intel's XScale3 core supports some v6 features (supersections, L2) * but advertises itself as v5 as it does not support the v6 ISA. For diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 7a21d0b..7f27fab 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -205,6 +205,13 @@ extern void *dma_alloc_writecombine(struct device *, size_t, dma_addr_t *, int dma_mmap_writecombine(struct device *, struct vm_area_struct *, void *, dma_addr_t, size_t); +/* + * This can be called during boot to increase the size of the consistent + * DMA region above it's default value of 2MB. It must be called before the + * memory allocator is initialised, i.e. before any core_initcall. + */ +extern void __init init_consistent_dma_size(unsigned long size); + #ifdef CONFIG_DMABOUNCE /* diff --git a/arch/arm/include/asm/entry-macro-multi.S b/arch/arm/include/asm/entry-macro-multi.S index 2f1e209..88d6181 100644 --- a/arch/arm/include/asm/entry-macro-multi.S +++ b/arch/arm/include/asm/entry-macro-multi.S @@ -25,13 +25,6 @@ movne r1, sp adrne lr, BSYM(1b) bne do_IPI - -#ifdef CONFIG_LOCAL_TIMERS - test_for_ltirq r0, r2, r6, lr - movne r0, sp - adrne lr, BSYM(1b) - bne do_local_timer -#endif #endif 9997: .endm diff --git a/arch/arm/include/asm/exception.h b/arch/arm/include/asm/exception.h new file mode 100644 index 0000000..5abaf5b --- /dev/null +++ b/arch/arm/include/asm/exception.h @@ -0,0 +1,19 @@ +/* + * Annotations for marking C functions as exception handlers. + * + * These should only be used for C functions that are called from the low + * level exception entry code and not any intervening C code. + */ +#ifndef __ASM_ARM_EXCEPTION_H +#define __ASM_ARM_EXCEPTION_H + +#include <linux/ftrace.h> + +#define __exception __attribute__((section(".exception.text"))) +#ifdef CONFIG_FUNCTION_GRAPH_TRACER +#define __exception_irq_entry __irq_entry +#else +#define __exception_irq_entry __exception +#endif + +#endif /* __ASM_ARM_EXCEPTION_H */ diff --git a/arch/arm/include/asm/hardirq.h b/arch/arm/include/asm/hardirq.h index 89ad180..ddf07a9 100644 --- a/arch/arm/include/asm/hardirq.h +++ b/arch/arm/include/asm/hardirq.h @@ -9,9 +9,6 @@ typedef struct { unsigned int __softirq_pending; -#ifdef CONFIG_LOCAL_TIMERS - unsigned int local_timer_irqs; -#endif #ifdef CONFIG_SMP unsigned int ipi_irqs[NR_IPI]; #endif diff --git a/arch/arm/include/asm/hardware/entry-macro-gic.S b/arch/arm/include/asm/hardware/entry-macro-gic.S index c115b82..74ebc80 100644 --- a/arch/arm/include/asm/hardware/entry-macro-gic.S +++ b/arch/arm/include/asm/hardware/entry-macro-gic.S @@ -22,15 +22,11 @@ * interrupt controller spec. To wit: * * Interrupts 0-15 are IPI - * 16-28 are reserved - * 29-31 are local. We allow 30 to be used for the watchdog. + * 16-31 are local. We allow 30 to be used for the watchdog. * 32-1020 are global * 1021-1022 are reserved * 1023 is "spurious" (no interrupt) * - * For now, we ignore all local interrupts so only return an interrupt if it's - * between 30 and 1020. The test_for_ipi routine below will pick up on IPIs. - * * A simple read from the controller will tell us the number of the highest * priority enabled interrupt. We then just need to check whether it is in the * valid range for an IRQ (30-1020 inclusive). @@ -43,7 +39,7 @@ ldr \tmp, =1021 bic \irqnr, \irqstat, #0x1c00 - cmp \irqnr, #29 + cmp \irqnr, #15 cmpcc \irqnr, \irqnr cmpne \irqnr, \tmp cmpcs \irqnr, \irqnr @@ -62,14 +58,3 @@ strcc \irqstat, [\base, #GIC_CPU_EOI] cmpcs \irqnr, \irqnr .endm - -/* As above, this assumes that irqstat and base are preserved.. */ - - .macro test_for_ltirq, irqnr, irqstat, base, tmp - bic \irqnr, \irqstat, #0x1c00 - mov \tmp, #0 - cmp \irqnr, #29 - moveq \tmp, #1 - streq \irqstat, [\base, #GIC_CPU_EOI] - cmp \tmp, #0 - .endm diff --git a/arch/arm/include/asm/hardware/gic.h b/arch/arm/include/asm/hardware/gic.h index 435d3f8..14867e1 100644 --- a/arch/arm/include/asm/hardware/gic.h +++ b/arch/arm/include/asm/hardware/gic.h @@ -40,12 +40,19 @@ void gic_init(unsigned int, unsigned int, void __iomem *, void __iomem *); void gic_secondary_init(unsigned int); void gic_cascade_irq(unsigned int gic_nr, unsigned int irq); void gic_raise_softirq(const struct cpumask *mask, unsigned int irq); -void gic_enable_ppi(unsigned int); struct gic_chip_data { unsigned int irq_offset; void __iomem *dist_base; void __iomem *cpu_base; +#ifdef CONFIG_CPU_PM + u32 saved_spi_enable[DIV_ROUND_UP(1020, 32)]; + u32 saved_spi_conf[DIV_ROUND_UP(1020, 16)]; + u32 saved_spi_target[DIV_ROUND_UP(1020, 4)]; + u32 __percpu *saved_ppi_enable; + u32 __percpu *saved_ppi_conf; +#endif + unsigned int gic_irqs; }; #endif diff --git a/arch/arm/include/asm/hw_breakpoint.h b/arch/arm/include/asm/hw_breakpoint.h index f389b27..c190bc9 100644 --- a/arch/arm/include/asm/hw_breakpoint.h +++ b/arch/arm/include/asm/hw_breakpoint.h @@ -50,6 +50,7 @@ static inline void decode_ctrl_reg(u32 reg, #define ARM_DEBUG_ARCH_V6_1 2 #define ARM_DEBUG_ARCH_V7_ECP14 3 #define ARM_DEBUG_ARCH_V7_MM 4 +#define ARM_DEBUG_ARCH_V7_1 5 /* Breakpoint */ #define ARM_BREAKPOINT_EXECUTE 0 @@ -57,6 +58,7 @@ static inline void decode_ctrl_reg(u32 reg, /* Watchpoints */ #define ARM_BREAKPOINT_LOAD 1 #define ARM_BREAKPOINT_STORE 2 +#define ARM_FSR_ACCESS_MASK (1 << 11) /* Privilege Levels */ #define ARM_BREAKPOINT_PRIV 1 diff --git a/arch/arm/include/asm/localtimer.h b/arch/arm/include/asm/localtimer.h index 080d74f..f5e1cec 100644 --- a/arch/arm/include/asm/localtimer.h +++ b/arch/arm/include/asm/localtimer.h @@ -10,6 +10,8 @@ #ifndef __ASM_ARM_LOCALTIMER_H #define __ASM_ARM_LOCALTIMER_H +#include <linux/interrupt.h> + struct clock_event_device; /* @@ -17,27 +19,20 @@ struct clock_event_device; */ void percpu_timer_setup(void); -/* - * Called from assembly, this is the local timer IRQ handler - */ -asmlinkage void do_local_timer(struct pt_regs *); - - #ifdef CONFIG_LOCAL_TIMERS #ifdef CONFIG_HAVE_ARM_TWD #include "smp_twd.h" -#define local_timer_ack() twd_timer_ack() +#define local_timer_stop(c) twd_timer_stop((c)) #else /* - * Platform provides this to acknowledge a local timer IRQ. - * Returns true if the local timer IRQ is to be processed. + * Stop the local timer */ -int local_timer_ack(void); +void local_timer_stop(struct clock_event_device *); #endif @@ -52,6 +47,10 @@ static inline int local_timer_setup(struct clock_event_device *evt) { return -ENXIO; } + +static inline void local_timer_stop(struct clock_event_device *evt) +{ +} #endif #endif diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h index 217aa191..727da11 100644 --- a/arch/arm/include/asm/mach/arch.h +++ b/arch/arm/include/asm/mach/arch.h @@ -17,7 +17,7 @@ struct sys_timer; struct machine_desc { unsigned int nr; /* architecture number */ const char *name; /* architecture name */ - unsigned long boot_params; /* tagged list */ + unsigned long atag_offset; /* tagged list (relative) */ const char **dt_compat; /* array of device tree * 'compatible' strings */ diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h index d2fedb5..b36f365 100644 --- a/arch/arm/include/asm/mach/map.h +++ b/arch/arm/include/asm/mach/map.h @@ -29,6 +29,7 @@ struct map_desc { #define MT_MEMORY_NONCACHED 11 #define MT_MEMORY_DTCM 12 #define MT_MEMORY_ITCM 13 +#define MT_MEMORY_SO 14 #ifdef CONFIG_MMU extern void iotable_init(struct map_desc *, int); diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index b8de516..a8997d7 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -16,9 +16,12 @@ #include <linux/compiler.h> #include <linux/const.h> #include <linux/types.h> -#include <mach/memory.h> #include <asm/sizes.h> +#ifdef CONFIG_NEED_MACH_MEMORY_H +#include <mach/memory.h> +#endif + /* * Allow for constants defined here to be used from assembly code * by prepending the UL suffix only with actual C code compilation. @@ -77,16 +80,7 @@ */ #define IOREMAP_MAX_ORDER 24 -/* - * Size of DMA-consistent memory region. Must be multiple of 2M, - * between 2MB and 14MB inclusive. - */ -#ifndef CONSISTENT_DMA_SIZE -#define CONSISTENT_DMA_SIZE SZ_2M -#endif - #define CONSISTENT_END (0xffe00000UL) -#define CONSISTENT_BASE (CONSISTENT_END - CONSISTENT_DMA_SIZE) #else /* CONFIG_MMU */ @@ -160,7 +154,6 @@ * so that all we need to do is modify the 8-bit constant field. */ #define __PV_BITS_31_24 0x81000000 -#define __PV_BITS_23_16 0x00810000 extern unsigned long __pv_phys_offset; #define PHYS_OFFSET __pv_phys_offset @@ -178,9 +171,6 @@ static inline unsigned long __virt_to_phys(unsigned long x) { unsigned long t; __pv_stub(x, t, "add", __PV_BITS_31_24); -#ifdef CONFIG_ARM_PATCH_PHYS_VIRT_16BIT - __pv_stub(t, t, "add", __PV_BITS_23_16); -#endif return t; } @@ -188,9 +178,6 @@ static inline unsigned long __phys_to_virt(unsigned long x) { unsigned long t; __pv_stub(x, t, "sub", __PV_BITS_31_24); -#ifdef CONFIG_ARM_PATCH_PHYS_VIRT_16BIT - __pv_stub(t, t, "sub", __PV_BITS_23_16); -#endif return t; } #else @@ -200,7 +187,11 @@ static inline unsigned long __phys_to_virt(unsigned long x) #endif #ifndef PHYS_OFFSET +#ifdef PLAT_PHYS_OFFSET #define PHYS_OFFSET PLAT_PHYS_OFFSET +#else +#define PHYS_OFFSET UL(CONFIG_PHYS_OFFSET) +#endif #endif /* diff --git a/arch/arm/include/asm/module.h b/arch/arm/include/asm/module.h index 543b449..6c6809f 100644 --- a/arch/arm/include/asm/module.h +++ b/arch/arm/include/asm/module.h @@ -31,11 +31,7 @@ struct mod_arch_specific { /* Add __virt_to_phys patching state as well */ #ifdef CONFIG_ARM_PATCH_PHYS_VIRT -#ifdef CONFIG_ARM_PATCH_PHYS_VIRT_16BIT -#define MODULE_ARCH_VERMAGIC_P2V "p2v16 " -#else #define MODULE_ARCH_VERMAGIC_P2V "p2v8 " -#endif #else #define MODULE_ARCH_VERMAGIC_P2V "" #endif diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h index 5750704..f1956b2 100644 --- a/arch/arm/include/asm/pgtable.h +++ b/arch/arm/include/asm/pgtable.h @@ -232,6 +232,9 @@ extern pgprot_t pgprot_kernel; #define pgprot_writecombine(prot) \ __pgprot_modify(prot, L_PTE_MT_MASK, L_PTE_MT_BUFFERABLE) +#define pgprot_stronglyordered(prot) \ + __pgprot_modify(prot, L_PTE_MT_MASK, L_PTE_MT_UNCACHED) + #ifdef CONFIG_ARM_DMA_MEM_BUFFERABLE #define pgprot_dmacoherent(prot) \ __pgprot_modify(prot, L_PTE_MT_MASK, L_PTE_MT_BUFFERABLE | L_PTE_XN) diff --git a/arch/arm/include/asm/pmu.h b/arch/arm/include/asm/pmu.h index b7e82c4..71d99b8 100644 --- a/arch/arm/include/asm/pmu.h +++ b/arch/arm/include/asm/pmu.h @@ -13,7 +13,12 @@ #define __ARM_PMU_H__ #include <linux/interrupt.h> +#include <linux/perf_event.h> +/* + * Types of PMUs that can be accessed directly and require mutual + * exclusion between profiling tools. + */ enum arm_pmu_type { ARM_PMU_DEVICE_CPU = 0, ARM_NUM_PMU_DEVICES, @@ -37,21 +42,17 @@ struct arm_pmu_platdata { * reserve_pmu() - reserve the hardware performance counters * * Reserve the hardware performance counters in the system for exclusive use. - * The platform_device for the system is returned on success, ERR_PTR() - * encoded error on failure. + * Returns 0 on success or -EBUSY if the lock is already held. */ -extern struct platform_device * +extern int reserve_pmu(enum arm_pmu_type type); /** * release_pmu() - Relinquish control of the performance counters * * Release the performance counters and allow someone else to use them. - * Callers must have disabled the counters and released IRQs before calling - * this. The platform_device returned from reserve_pmu() must be passed as - * a cookie. */ -extern int +extern void release_pmu(enum arm_pmu_type type); /** @@ -68,24 +69,78 @@ init_pmu(enum arm_pmu_type type); #include <linux/err.h> -static inline struct platform_device * -reserve_pmu(enum arm_pmu_type type) -{ - return ERR_PTR(-ENODEV); -} - static inline int -release_pmu(enum arm_pmu_type type) +reserve_pmu(enum arm_pmu_type type) { return -ENODEV; } -static inline int -init_pmu(enum arm_pmu_type type) -{ - return -ENODEV; -} +static inline void +release_pmu(enum arm_pmu_type type) { } #endif /* CONFIG_CPU_HAS_PMU */ +#ifdef CONFIG_HW_PERF_EVENTS + +/* The events for a given PMU register set. */ +struct pmu_hw_events { + /* + * The events that are active on the PMU for the given index. + */ + struct perf_event **events; + + /* + * A 1 bit for an index indicates that the counter is being used for + * an event. A 0 means that the counter can be used. + */ + unsigned long *used_mask; + + /* + * Hardware lock to serialize accesses to PMU registers. Needed for the + * read/modify/write sequences. + */ + raw_spinlock_t pmu_lock; +}; + +struct arm_pmu { + struct pmu pmu; + enum arm_perf_pmu_ids id; + enum arm_pmu_type type; + cpumask_t active_irqs; + const char *name; + irqreturn_t (*handle_irq)(int irq_num, void *dev); + void (*enable)(struct hw_perf_event *evt, int idx); + void (*disable)(struct hw_perf_event *evt, int idx); + int (*get_event_idx)(struct pmu_hw_events *hw_events, + struct hw_perf_event *hwc); + int (*set_event_filter)(struct hw_perf_event *evt, + struct perf_event_attr *attr); + u32 (*read_counter)(int idx); + void (*write_counter)(int idx, u32 val); + void (*start)(void); + void (*stop)(void); + void (*reset)(void *); + int (*map_event)(struct perf_event *event); + int num_events; + atomic_t active_events; + struct mutex reserve_mutex; + u64 max_period; + struct platform_device *plat_device; + struct pmu_hw_events *(*get_hw_events)(void); +}; + +#define to_arm_pmu(p) (container_of(p, struct arm_pmu, pmu)) + +int __init armpmu_register(struct arm_pmu *armpmu, char *name, int type); + +u64 armpmu_event_update(struct perf_event *event, + struct hw_perf_event *hwc, + int idx, int overflow); + +int armpmu_event_set_period(struct perf_event *event, + struct hw_perf_event *hwc, + int idx); + +#endif /* CONFIG_HW_PERF_EVENTS */ + #endif /* __ARM_PMU_H__ */ diff --git a/arch/arm/include/asm/proc-fns.h b/arch/arm/include/asm/proc-fns.h index 633d1cb..9e92cb2 100644 --- a/arch/arm/include/asm/proc-fns.h +++ b/arch/arm/include/asm/proc-fns.h @@ -81,6 +81,10 @@ extern void cpu_dcache_clean_area(void *, int); extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm); extern void cpu_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); extern void cpu_reset(unsigned long addr) __attribute__((noreturn)); + +/* These three are private to arch/arm/kernel/suspend.c */ +extern void cpu_do_suspend(void *); +extern void cpu_do_resume(void *); #else #define cpu_proc_init processor._proc_init #define cpu_proc_fin processor._proc_fin @@ -89,6 +93,10 @@ extern void cpu_reset(unsigned long addr) __attribute__((noreturn)); #define cpu_dcache_clean_area processor.dcache_clean_area #define cpu_set_pte_ext processor.set_pte_ext #define cpu_do_switch_mm processor.switch_mm + +/* These three are private to arch/arm/kernel/suspend.c */ +#define cpu_do_suspend processor.do_suspend +#define cpu_do_resume processor.do_resume #endif extern void cpu_resume(void); diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h index e42d96a..1e5717a 100644 --- a/arch/arm/include/asm/smp.h +++ b/arch/arm/include/asm/smp.h @@ -33,6 +33,11 @@ extern void show_ipi_list(struct seq_file *, int); asmlinkage void do_IPI(int ipinr, struct pt_regs *regs); /* + * Called from C code, this handles an IPI. + */ +void handle_IPI(int ipinr, struct pt_regs *regs); + +/* * Setup the set of possible CPUs (via set_cpu_possible) */ extern void smp_init_cpus(void); @@ -66,6 +71,12 @@ extern void platform_secondary_init(unsigned int cpu); extern void platform_smp_prepare_cpus(unsigned int); /* + * Logical CPU mapping. + */ +extern int __cpu_logical_map[NR_CPUS]; +#define cpu_logical_map(cpu) __cpu_logical_map[cpu] + +/* * Initial data for bringing up a secondary CPU. */ struct secondary_data { @@ -88,9 +99,4 @@ extern void platform_cpu_enable(unsigned int cpu); extern void arch_send_call_function_single_ipi(int cpu); extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); -/* - * show local interrupt info - */ -extern void show_local_irqs(struct seq_file *, int); - #endif /* ifndef __ASM_ARM_SMP_H */ diff --git a/arch/arm/include/asm/smp_twd.h b/arch/arm/include/asm/smp_twd.h index fed9981..ef9ffba9 100644 --- a/arch/arm/include/asm/smp_twd.h +++ b/arch/arm/include/asm/smp_twd.h @@ -22,7 +22,7 @@ struct clock_event_device; extern void __iomem *twd_base; -int twd_timer_ack(void); void twd_timer_setup(struct clock_event_device *); +void twd_timer_stop(struct clock_event_device *); #endif diff --git a/arch/arm/include/asm/suspend.h b/arch/arm/include/asm/suspend.h index b0e4e1a..1c0a551 100644 --- a/arch/arm/include/asm/suspend.h +++ b/arch/arm/include/asm/suspend.h @@ -1,22 +1,7 @@ #ifndef __ASM_ARM_SUSPEND_H #define __ASM_ARM_SUSPEND_H -#include <asm/memory.h> -#include <asm/tlbflush.h> - extern void cpu_resume(void); - -/* - * Hide the first two arguments to __cpu_suspend - these are an implementation - * detail which platform code shouldn't have to know about. - */ -static inline int cpu_suspend(unsigned long arg, int (*fn)(unsigned long)) -{ - extern int __cpu_suspend(int, long, unsigned long, - int (*)(unsigned long)); - int ret = __cpu_suspend(0, PHYS_OFFSET - PAGE_OFFSET, arg, fn); - flush_tlb_all(); - return ret; -} +extern int cpu_suspend(unsigned long, int (*)(unsigned long)); #endif diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index 832888d..ed6b049 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -62,13 +62,6 @@ #include <asm/outercache.h> -#define __exception __attribute__((section(".exception.text"))) -#ifdef CONFIG_FUNCTION_GRAPH_TRACER -#define __exception_irq_entry __irq_entry -#else -#define __exception_irq_entry __exception -#endif - struct thread_info; struct task_struct; diff --git a/arch/arm/include/asm/topology.h b/arch/arm/include/asm/topology.h index accbd7c..a7e457e 100644 --- a/arch/arm/include/asm/topology.h +++ b/arch/arm/include/asm/topology.h @@ -1,6 +1,39 @@ #ifndef _ASM_ARM_TOPOLOGY_H #define _ASM_ARM_TOPOLOGY_H +#ifdef CONFIG_ARM_CPU_TOPOLOGY + +#include <linux/cpumask.h> + +struct cputopo_arm { + int thread_id; + int core_id; + int socket_id; + cpumask_t thread_sibling; + cpumask_t core_sibling; +}; + +extern struct cputopo_arm cpu_topology[NR_CPUS]; + +#define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id) +#define topology_core_id(cpu) (cpu_topology[cpu].core_id) +#define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling) +#define topology_thread_cpumask(cpu) (&cpu_topology[cpu].thread_sibling) + +#define mc_capable() (cpu_topology[0].socket_id != -1) +#define smt_capable() (cpu_topology[0].thread_id != -1) + +void init_cpu_topology(void); +void store_cpu_topology(unsigned int cpuid); +const struct cpumask *cpu_coregroup_mask(unsigned int cpu); + +#else + +static inline void init_cpu_topology(void) { } +static inline void store_cpu_topology(unsigned int cpuid) { } + +#endif + #include <asm-generic/topology.h> #endif /* _ASM_ARM_TOPOLOGY_H */ |