Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / blackfin / include / asm / pda.h

diff --git a/kernel/arch/blackfin/include/asm/pda.h b/kernel/arch/blackfin/include/asm/pda.h
new file mode 100644 (file)
index 0000000..68d6f66
--- /dev/null
+++ b/kernel/arch/blackfin/include/asm/pda.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2007-2009 Analog Devices Inc.
+ *                         Philippe Gerum <rpm@xenomai.org>
+ *
+ * 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 */