powerpc: Move include files to arch/powerpc/include/asm

from include/asm-powerpc.  This is the result of a

mkdir arch/powerpc/include/asm
git mv include/asm-powerpc/* arch/powerpc/include/asm

Followed by a few documentation/comment fixups and a couple of places
where <asm-powepc/...> was being used explicitly.  Of the latter only
one was outside the arch code and it is a driver only built for powerpc.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 112 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
new file mode 100644
index 00000000000..6493a395508
--- /dev/null
+++ b/arch/powerpc/include/asm/paca.h
@@ -0,0 +1,112 @@
+/*
+ * This control block defines the PACA which defines the processor
+ * specific data for each logical processor on the system.
+ * There are some pointers defined that are utilized by PLIC.
+ *
+ * C 2001 PPC 64 Team, 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.
+ */
+#ifndef _ASM_POWERPC_PACA_H
+#define _ASM_POWERPC_PACA_H
+#ifdef __KERNEL__
+
+#include	<asm/types.h>
+#include	<asm/lppaca.h>
+#include	<asm/mmu.h>
+
+register struct paca_struct *local_paca asm("r13");
+
+#if defined(CONFIG_DEBUG_PREEMPT) && defined(CONFIG_SMP)
+extern unsigned int debug_smp_processor_id(void); /* from linux/smp.h */
+/*
+ * Add standard checks that preemption cannot occur when using get_paca():
+ * otherwise the paca_struct it points to may be the wrong one just after.
+ */
+#define get_paca()	((void) debug_smp_processor_id(), local_paca)
+#else
+#define get_paca()	local_paca
+#endif
+
+#define get_lppaca()	(get_paca()->lppaca_ptr)
+#define get_slb_shadow()	(get_paca()->slb_shadow_ptr)
+
+struct task_struct;
+
+/*
+ * Defines the layout of the paca.
+ *
+ * This structure is not directly accessed by firmware or the service
+ * processor.
+ */
+struct paca_struct {
+	/*
+	 * Because hw_cpu_id, unlike other paca fields, is accessed
+	 * routinely from other CPUs (from the IRQ code), we stick to
+	 * read-only (after boot) fields in the first cacheline to
+	 * avoid cacheline bouncing.
+	 */
+
+	struct lppaca *lppaca_ptr;	/* Pointer to LpPaca for PLIC */
+
+	/*
+	 * MAGIC: the spinlock functions in arch/powerpc/lib/locks.c 
+	 * load lock_token and paca_index with a single lwz
+	 * instruction.  They must travel together and be properly
+	 * aligned.
+	 */
+	u16 lock_token;			/* Constant 0x8000, used in locks */
+	u16 paca_index;			/* Logical processor number */
+
+	u64 kernel_toc;			/* Kernel TOC address */
+	u64 stab_real;			/* Absolute address of segment table */
+	u64 stab_addr;			/* Virtual address of segment table */
+	void *emergency_sp;		/* pointer to emergency stack */
+	u64 data_offset;		/* per cpu data offset */
+	s16 hw_cpu_id;			/* Physical processor number */
+	u8 cpu_start;			/* At startup, processor spins until */
+					/* this becomes non-zero. */
+	struct slb_shadow *slb_shadow_ptr;
+
+	/*
+	 * Now, starting in cacheline 2, the exception save areas
+	 */
+	/* used for most interrupts/exceptions */
+	u64 exgen[10] __attribute__((aligned(0x80)));
+	u64 exmc[10];		/* used for machine checks */
+	u64 exslb[10];		/* used for SLB/segment table misses
+ 				 * on the linear mapping */
+
+	mm_context_t context;
+	u16 vmalloc_sllp;
+	u16 slb_cache_ptr;
+	u16 slb_cache[SLB_CACHE_ENTRIES];
+
+	/*
+	 * then miscellaneous read-write fields
+	 */
+	struct task_struct *__current;	/* Pointer to current */
+	u64 kstack;			/* Saved Kernel stack addr */
+	u64 stab_rr;			/* stab/slb round-robin counter */
+	u64 saved_r1;			/* r1 save for RTAS calls */
+	u64 saved_msr;			/* MSR saved here by enter_rtas */
+	u16 trap_save;			/* Used when bad stack is encountered */
+	u8 soft_enabled;		/* irq soft-enable flag */
+	u8 hard_enabled;		/* set if irqs are enabled in MSR */
+	u8 io_sync;			/* writel() needs spin_unlock sync */
+
+	/* Stuff for accurate time accounting */
+	u64 user_time;			/* accumulated usermode TB ticks */
+	u64 system_time;		/* accumulated system TB ticks */
+	u64 startpurr;			/* PURR/TB value snapshot */
+	u64 startspurr;			/* SPURR value snapshot */
+};
+
+extern struct paca_struct paca[];
+extern void initialise_pacas(void);
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_PACA_H */