arch/sh/include/asm/processor.h

Source file repositories/reference/linux-study-clean/arch/sh/include/asm/processor.h

File Facts

System
Linux kernel
Corpus path
arch/sh/include/asm/processor.h
Extension
.h
Size
4319 bytes
Lines
176
Domain
Architecture Layer
Bucket
arch/sh
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

struct tlb_info {
	unsigned long long next;
	unsigned long long first;
	unsigned long long last;

	unsigned int entries;
	unsigned int step;

	unsigned long flags;
};

struct sh_cpuinfo {
	unsigned int type, family;
	int cut_major, cut_minor;
	unsigned long loops_per_jiffy;
	unsigned long asid_cache;

	struct cache_info icache;	/* Primary I-cache */
	struct cache_info dcache;	/* Primary D-cache */
	struct cache_info scache;	/* Secondary cache */

	/* TLB info */
	struct tlb_info itlb;
	struct tlb_info dtlb;

	unsigned int phys_bits;
	unsigned long flags;
} __attribute__ ((aligned(L1_CACHE_BYTES)));

extern struct sh_cpuinfo cpu_data[];
#define boot_cpu_data cpu_data[0]
#define current_cpu_data cpu_data[smp_processor_id()]
#define raw_current_cpu_data cpu_data[raw_smp_processor_id()]

#define cpu_sleep()	__asm__ __volatile__ ("sleep" : : : "memory")
#define cpu_relax()	barrier()

void default_idle(void);
void stop_this_cpu(void *);

/* Forward decl */
struct seq_operations;
struct task_struct;

extern struct pt_regs fake_swapper_regs;

extern void cpu_init(void);
extern void cpu_probe(void);

/* arch/sh/kernel/process.c */
extern unsigned int xstate_size;
extern void free_thread_xstate(struct task_struct *);
extern struct kmem_cache *task_xstate_cachep;

/* arch/sh/mm/alignment.c */
extern int get_unalign_ctl(struct task_struct *, unsigned long addr);
extern int set_unalign_ctl(struct task_struct *, unsigned int val);

#define GET_UNALIGN_CTL(tsk, addr)	get_unalign_ctl((tsk), (addr))
#define SET_UNALIGN_CTL(tsk, val)	set_unalign_ctl((tsk), (val))

/* arch/sh/mm/init.c */
extern unsigned int mem_init_done;

/* arch/sh/kernel/setup.c */
const char *get_cpu_subtype(struct sh_cpuinfo *c);
extern const struct seq_operations cpuinfo_op;

/* thread_struct flags */
#define SH_THREAD_UAC_NOPRINT	(1 << 0)
#define SH_THREAD_UAC_SIGBUS	(1 << 1)
#define SH_THREAD_UAC_MASK	(SH_THREAD_UAC_NOPRINT | SH_THREAD_UAC_SIGBUS)

/* processor boot mode configuration */
#define MODE_PIN0 (1 << 0)
#define MODE_PIN1 (1 << 1)
#define MODE_PIN2 (1 << 2)
#define MODE_PIN3 (1 << 3)
#define MODE_PIN4 (1 << 4)
#define MODE_PIN5 (1 << 5)
#define MODE_PIN6 (1 << 6)
#define MODE_PIN7 (1 << 7)
#define MODE_PIN8 (1 << 8)
#define MODE_PIN9 (1 << 9)
#define MODE_PIN10 (1 << 10)
#define MODE_PIN11 (1 << 11)
#define MODE_PIN12 (1 << 12)
#define MODE_PIN13 (1 << 13)
#define MODE_PIN14 (1 << 14)
#define MODE_PIN15 (1 << 15)

Annotation

Implementation Notes