processor.h File Reference

#include <variant/core.h>
#include <platform/hardware.h>
#include <linux/compiler.h>
#include <asm/ptrace.h>
#include <asm/types.h>
#include <asm/regs.h>

Go to the source code of this file.

Data Structures
struct	mm_segment_t
struct	thread_struct

Macros
#define	ARCH_SLAB_MINALIGN   XCHAL_DATA_WIDTH
#define	TASK_SIZE   (PLATFORM_DEFAULT_MEM_START + PLATFORM_DEFAULT_MEM_SIZE)
#define	STACK_TOP   TASK_SIZE
#define	STACK_TOP_MAX   STACK_TOP
#define	EXCCAUSE_MAPPED_DEBUG   63
#define	VALID_DOUBLE_EXCEPTION_ADDRESS   64
#define	LOCKLEVEL   1
#define	WSBITS   (XCHAL_NUM_AREGS / 4) /* width of WINDOWSTART in bits */
#define	WBBITS   (XCHAL_NUM_AREGS_LOG2 - 2) /* width of WINDOWBASE in bits */
#define	MAKE_RA_FOR_CALL(ra, ws)   (((ra) & 0x3fffffff) | (ws) << 30)
#define	MAKE_PC_FROM_RA(ra, sp)   (((ra) & 0x3fffffff) | ((sp) & 0xc0000000))
#define	current_text_addr()   ({ __label__ _l; _l: &&_l;})
#define	TASK_UNMAPPED_BASE   (TASK_SIZE / 2)
#define	INIT_THREAD
#define	USER_PS_VALUE
#define	start_thread(regs, new_pc, new_sp)
#define	release_thread(thread)   do { } while(0)
#define	copy_segments(p, mm)   do { } while(0)
#define	release_segments(mm)   do { } while(0)
#define	forget_segments()   do { } while (0)
#define	thread_saved_pc(tsk)   (task_pt_regs(tsk)->pc)
#define	KSTK_EIP(tsk)   (task_pt_regs(tsk)->pc)
#define	KSTK_ESP(tsk)   (task_pt_regs(tsk)->areg[1])
#define	cpu_relax()   barrier()
#define	WSR(v, sr)   __asm__ __volatile__ ("wsr %0,"__stringify(sr) :: "a"(v));
#define	RSR(v, sr)   __asm__ __volatile__ ("rsr %0,"__stringify(sr) : "=a"(v));
#define	set_sr(x, sr)   ({unsigned int v=(unsigned int)x; WSR(v,sr);})
#define	get_sr(sr)   ({unsigned int v; RSR(v,sr); v; })

Functions
unsigned long	get_wchan (struct task_struct *p)

Macro Definition Documentation

#define ARCH_SLAB_MINALIGN   XCHAL_DATA_WIDTH

Definition at line 28 of file processor.h.

#define copy_segments	(		p,
			mm
	)		do { } while(0)

Definition at line 173 of file processor.h.

#define cpu_relax

(

void

)

barrier()

Definition at line 184 of file processor.h.

#define current_text_addr

(

void

)

({ __label__ _l; _l: &&_l;})

Definition at line 122 of file processor.h.

#define EXCCAUSE_MAPPED_DEBUG   63

Definition at line 56 of file processor.h.

#define forget_segments

(

)

do { } while (0)

Definition at line 175 of file processor.h.

#define get_sr

(

sr

)

({unsigned int v; RSR(v,sr); v; })

Definition at line 192 of file processor.h.

#define INIT_THREAD

Value:

{                                   \
    ra:     0,                      \
    sp:     sizeof(init_stack) + (long) &init_stack,    \
    current_ds: {0},                        \
    /*info:     {0}, */                     \
    bad_vaddr:  0,                      \
    bad_uaddr:  0,                      \
    error_code: 0,                      \
}

Definition at line 130 of file processor.h.

#define KSTK_EIP

(

tsk

)

(task_pt_regs(tsk)->pc)

Definition at line 181 of file processor.h.

#define KSTK_ESP

(

tsk

)

(task_pt_regs(tsk)->areg[1])

Definition at line 182 of file processor.h.

#define LOCKLEVEL   1

Definition at line 71 of file processor.h.

#define MAKE_PC_FROM_RA	(		ra,
			sp
	)		(((ra) & 0x3fffffff) | ((sp) & 0xc0000000))

Definition at line 89 of file processor.h.

#define MAKE_RA_FOR_CALL	(		ra,
			ws
	)		(((ra) & 0x3fffffff) | (ws) << 30)

Definition at line 84 of file processor.h.

#define release_segments

(

mm

)

do { } while(0)

Definition at line 174 of file processor.h.

#define release_thread

(

thread

)

do { } while(0)

Definition at line 170 of file processor.h.

#define RSR	(		v,
			sr
	)		__asm__ __volatile__ ("rsr %0,"__stringify(sr) : "=a"(v));

Definition at line 189 of file processor.h.

#define set_sr	(		x,
			sr
	)		({unsigned int v=(unsigned int)x; WSR(v,sr);})

Definition at line 191 of file processor.h.

#define STACK_TOP   TASK_SIZE

Definition at line 44 of file processor.h.

#define STACK_TOP_MAX   STACK_TOP

Definition at line 45 of file processor.h.

#define start_thread	(		regs,
			new_pc,
			new_sp
	)

Value:

memset(regs, 0, sizeof(*regs)); \
	regs->pc = new_pc; \
	regs->ps = USER_PS_VALUE; \
	regs->areg[1] = new_sp; \
	regs->areg[0] = 0; \
	regs->wmask = 1; \
	regs->depc = 0; \
	regs->windowbase = 0; \
	regs->windowstart = 1;

Definition at line 154 of file processor.h.

#define TASK_SIZE   (PLATFORM_DEFAULT_MEM_START + PLATFORM_DEFAULT_MEM_SIZE)

Definition at line 41 of file processor.h.

#define TASK_UNMAPPED_BASE   (TASK_SIZE / 2)

Definition at line 128 of file processor.h.

#define thread_saved_pc

(

tsk

)

(task_pt_regs(tsk)->pc)

Definition at line 177 of file processor.h.

#define USER_PS_VALUE

Value:

((1 << PS_WOE_BIT) |                \
                       (1 << PS_CALLINC_SHIFT) |            \
                       (USER_RING << PS_RING_SHIFT) |           \
                       (1 << PS_UM_BIT) |               \
                       (1 << PS_EXCM_BIT))

Definition at line 147 of file processor.h.

#define VALID_DOUBLE_EXCEPTION_ADDRESS   64

Definition at line 66 of file processor.h.

#define WBBITS   (XCHAL_NUM_AREGS_LOG2 - 2) /* width of WINDOWBASE in bits */

Definition at line 77 of file processor.h.

#define WSBITS   (XCHAL_NUM_AREGS / 4) /* width of WINDOWSTART in bits */

Definition at line 76 of file processor.h.

#define WSR	(		v,
			sr
	)		__asm__ __volatile__ ("wsr %0,"__stringify(sr) :: "a"(v));

Definition at line 188 of file processor.h.

Function Documentation

unsigned long get_wchan

(

struct task_struct *

p

)

Definition at line 419 of file process.c.