/*
* Copyright 2007-2009 Analog Devices Inc.
* Philippe Gerum <[email protected]>
*
* Licensed under the GPL-2 or later.
*/

#ifndef _ASM_BLACKFIN_PDA_H
#define _ASM_BLACKFIN_PDA_H

#include <mach/anomaly.h>

#ifndef __ASSEMBLY__

struct blackfin_pda { /* Per-processor Data Area */
#ifdef CONFIG_SMP
struct blackfin_pda *next;
#endif

unsigned long syscfg;
#ifdef CONFIG_SMP
unsigned long imask; /* Current IMASK value */
#endif

unsigned long *ipdt; /* Start of switchable I-CPLB table */
unsigned long *ipdt_swapcount; /* Number of swaps in ipdt */
unsigned long *dpdt; /* Start of switchable D-CPLB table */
unsigned long *dpdt_swapcount; /* Number of swaps in dpdt */

/*
* Single instructions can have multiple faults, which
* need to be handled by traps.c, in irq5. We store
* the exception cause to ensure we don't miss a
* double fault condition
*/
unsigned long ex_iptr;
unsigned long ex_optr;
unsigned long ex_buf[4];
unsigned long ex_imask; /* Saved imask from exception */
unsigned long ex_ipend; /* Saved IPEND from exception */
unsigned long *ex_stack; /* Exception stack space */

#ifdef ANOMALY_05000261
unsigned long last_cplb_fault_retx;
#endif
unsigned long dcplb_fault_addr;
unsigned long icplb_fault_addr;
unsigned long retx;
unsigned long seqstat;
unsigned int __nmi_count; /* number of times NMI asserted on this CPU */
#ifdef CONFIG_DEBUG_DOUBLEFAULT
unsigned long dcplb_doublefault_addr;
unsigned long icplb_doublefault_addr;
unsigned long retx_doublefault;
unsigned long seqstat_doublefault;
#endif
};

struct blackfin_initial_pda {
void *retx;
#ifdef CONFIG_DEBUG_DOUBLEFAULT
void *dcplb_doublefault_addr;
void *icplb_doublefault_addr;
void *retx_doublefault;
unsigned seqstat_doublefault;
#endif
};

extern struct blackfin_pda cpu_pda[];

#endif /* __ASSEMBLY__ */

#endif /* _ASM_BLACKFIN_PDA_H */