blob: 6dedc08e62c874f26d5e57917b79d9bc5f507dae [file] [log] [blame]
* ICSWX and ACOP Management
* Copyright (C) 2011 Anton Blanchard, IBM Corp. <>
* 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; either version
* 2 of the License, or (at your option) any later version.
#include <asm/mmu_context.h>
/* also used to denote that PIDs are not used */
#define COP_PID_NONE 0
static inline void sync_cop(void *arg)
struct mm_struct *mm = arg;
if (mm == current->active_mm)
extern int get_cop_pid(struct mm_struct *mm);
extern int disable_cop_pid(struct mm_struct *mm);
extern void free_cop_pid(int free_pid);
#define get_cop_pid(m) (COP_PID_NONE)
#define disable_cop_pid(m) (COP_PID_NONE)
#define free_cop_pid(p)
* These are implementation bits for architected registers. If this
* ever becomes architecture the should be moved to reg.h et. al.
/* UCT is the same bit for Server and Embedded */
#define ICSWX_DSI_UCT 0x00004000 /* Unavailable Coprocessor Type */
/* Embedded implementation gives us no hints as to what the CT is */
#define ICSWX_GET_CT_HINT(x) (-1)
/* Server implementation contains the CT value in the DSISR */
#define ICSWX_DSISR_CTMASK 0x00003f00
#define ICSWX_GET_CT_HINT(x) (((x) & ICSWX_DSISR_CTMASK) >> 8)
#define ICSWX_RC_STARTED 0x8 /* The request has been started */
#define ICSWX_RC_NOT_IDLE 0x4 /* No coprocessor found idle */
#define ICSWX_RC_NOT_FOUND 0x2 /* No coprocessor found */
#define ICSWX_RC_UNDEFINED 0x1 /* Reserved */
extern int acop_handle_fault(struct pt_regs *regs, unsigned long address,
unsigned long error_code);
static inline u64 acop_copro_type_bit(unsigned int type)
return 1ULL << (63 - type);
#endif /* !_ARCH_POWERPC_MM_ICSWX_H_ */