fb1d9be596
This moves the double fault data used at boot time into a single struct which can then easily be addressed with indexed loads rather than having to explicitly load multiple addresses. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
/*
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* Copyright 2007-2009 Analog Devices Inc.
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* Philippe Gerum <rpm@xenomai.org>
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*
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* Licensed under the GPL-2 or later.
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*/
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#ifndef _ASM_BLACKFIN_PDA_H
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#define _ASM_BLACKFIN_PDA_H
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#include <mach/anomaly.h>
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#ifndef __ASSEMBLY__
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struct blackfin_pda { /* Per-processor Data Area */
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struct blackfin_pda *next;
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unsigned long syscfg;
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#ifdef CONFIG_SMP
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unsigned long imask; /* Current IMASK value */
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#endif
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unsigned long *ipdt; /* Start of switchable I-CPLB table */
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unsigned long *ipdt_swapcount; /* Number of swaps in ipdt */
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unsigned long *dpdt; /* Start of switchable D-CPLB table */
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unsigned long *dpdt_swapcount; /* Number of swaps in dpdt */
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/*
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* Single instructions can have multiple faults, which
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* need to be handled by traps.c, in irq5. We store
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* the exception cause to ensure we don't miss a
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* double fault condition
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*/
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unsigned long ex_iptr;
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unsigned long ex_optr;
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unsigned long ex_buf[4];
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unsigned long ex_imask; /* Saved imask from exception */
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unsigned long ex_ipend; /* Saved IPEND from exception */
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unsigned long *ex_stack; /* Exception stack space */
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#ifdef ANOMALY_05000261
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unsigned long last_cplb_fault_retx;
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#endif
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unsigned long dcplb_fault_addr;
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unsigned long icplb_fault_addr;
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unsigned long retx;
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unsigned long seqstat;
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unsigned int __nmi_count; /* number of times NMI asserted on this CPU */
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#ifdef CONFIG_DEBUG_DOUBLEFAULT
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unsigned long dcplb_doublefault_addr;
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unsigned long icplb_doublefault_addr;
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unsigned long retx_doublefault;
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unsigned long seqstat_doublefault;
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#endif
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};
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struct blackfin_initial_pda {
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void *retx;
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#ifdef CONFIG_DEBUG_DOUBLEFAULT
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void *dcplb_doublefault_addr;
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void *icplb_doublefault_addr;
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void *retx_doublefault;
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unsigned seqstat_doublefault;
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#endif
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};
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extern struct blackfin_pda cpu_pda[];
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#endif /* __ASSEMBLY__ */
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#endif /* _ASM_BLACKFIN_PDA_H */
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