include/asm-sparc64/spitfire.h - kernel/msm-4.9 - Gitiles

 /* $Id: spitfire.h,v 1.18 2001/11/29 16:42:10 kanoj Exp $
  * spitfire.h: SpitFire/BlackBird/Cheetah inline MMU operations.
  *
  * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
  */

 #ifndef _SPARC64_SPITFIRE_H
 #define _SPARC64_SPITFIRE_H

 #include <asm/asi.h>

 /* The following register addresses are accessible via ASI_DMMU
  * and ASI_IMMU, that is there is a distinct and unique copy of
  * each these registers for each TLB.
  */
 #define TSB_TAG_TARGET		0x0000000000000000 /* All chips				*/
 #define TLB_SFSR		0x0000000000000018 /* All chips				*/
 #define TSB_REG			0x0000000000000028 /* All chips				*/
 #define TLB_TAG_ACCESS		0x0000000000000030 /* All chips				*/
 #define VIRT_WATCHPOINT		0x0000000000000038 /* All chips				*/
 #define PHYS_WATCHPOINT		0x0000000000000040 /* All chips				*/
 #define TSB_EXTENSION_P		0x0000000000000048 /* Ultra-III and later		*/
 #define TSB_EXTENSION_S		0x0000000000000050 /* Ultra-III and later, D-TLB only	*/
 #define TSB_EXTENSION_N		0x0000000000000058 /* Ultra-III and later		*/
 #define TLB_TAG_ACCESS_EXT	0x0000000000000060 /* Ultra-III+ and later		*/

 /* These registers only exist as one entity, and are accessed
  * via ASI_DMMU only.
  */
 #define PRIMARY_CONTEXT		0x0000000000000008
 #define SECONDARY_CONTEXT	0x0000000000000010
 #define DMMU_SFAR		0x0000000000000020
 #define VIRT_WATCHPOINT		0x0000000000000038
 #define PHYS_WATCHPOINT		0x0000000000000040

 #define SPITFIRE_HIGHEST_LOCKED_TLBENT	(64 - 1)
 #define CHEETAH_HIGHEST_LOCKED_TLBENT	(16 - 1)

 #define L1DCACHE_SIZE		0x4000

 #ifndef __ASSEMBLY__

 enum ultra_tlb_layout {
 	spitfire = 0,
 	cheetah = 1,
 	cheetah_plus = 2,
 };

 extern enum ultra_tlb_layout tlb_type;

 #define sparc64_highest_locked_tlbent()	\
 	(tlb_type == spitfire ? \
 	 SPITFIRE_HIGHEST_LOCKED_TLBENT : \
 	 CHEETAH_HIGHEST_LOCKED_TLBENT)

 static __inline__ unsigned long spitfire_get_isfsr(void)
 {
 	unsigned long ret;

 	__asm__ __volatile__("ldxa	[%1] %2, %0"
 			     : "=r" (ret)
 			     : "r" (TLB_SFSR), "i" (ASI_IMMU));
 	return ret;
 }

 static __inline__ unsigned long spitfire_get_dsfsr(void)
 {
 	unsigned long ret;

 	__asm__ __volatile__("ldxa	[%1] %2, %0"
 			     : "=r" (ret)
 			     : "r" (TLB_SFSR), "i" (ASI_DMMU));
 	return ret;
 }

 static __inline__ unsigned long spitfire_get_sfar(void)
 {
 	unsigned long ret;

 	__asm__ __volatile__("ldxa	[%1] %2, %0"
 			     : "=r" (ret)
 			     : "r" (DMMU_SFAR), "i" (ASI_DMMU));
 	return ret;
 }

 static __inline__ void spitfire_put_isfsr(unsigned long sfsr)
 {
 	__asm__ __volatile__("stxa	%0, [%1] %2\n\t"
 			     "membar	#Sync"
 			     : /* no outputs */
 			     : "r" (sfsr), "r" (TLB_SFSR), "i" (ASI_IMMU));
 }

 static __inline__ void spitfire_put_dsfsr(unsigned long sfsr)
 {
 	__asm__ __volatile__("stxa	%0, [%1] %2\n\t"
 			     "membar	#Sync"
 			     : /* no outputs */
 			     : "r" (sfsr), "r" (TLB_SFSR), "i" (ASI_DMMU));
 }

 /* The data cache is write through, so this just invalidates the
  * specified line.
  */
 static __inline__ void spitfire_put_dcache_tag(unsigned long addr, unsigned long tag)
 {
 	__asm__ __volatile__("stxa	%0, [%1] %2\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (tag), "r" (addr), "i" (ASI_DCACHE_TAG));
 	__asm__ __volatile__ ("membar #Sync" : : : "memory");
 }

 /* The instruction cache lines are flushed with this, but note that
  * this does not flush the pipeline.  It is possible for a line to
  * get flushed but stale instructions to still be in the pipeline,
  * a flush instruction (to any address) is sufficient to handle
  * this issue after the line is invalidated.
  */
 static __inline__ void spitfire_put_icache_tag(unsigned long addr, unsigned long tag)
 {
 	__asm__ __volatile__("stxa	%0, [%1] %2\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (tag), "r" (addr), "i" (ASI_IC_TAG));
 }

 static __inline__ unsigned long spitfire_get_dtlb_data(int entry)
 {
 	unsigned long data;

 	__asm__ __volatile__("ldxa	[%1] %2, %0"
 			     : "=r" (data)
 			     : "r" (entry << 3), "i" (ASI_DTLB_DATA_ACCESS));

 	/* Clear TTE diag bits. */
 	data &= ~0x0003fe0000000000UL;

 	return data;
 }

 static __inline__ unsigned long spitfire_get_dtlb_tag(int entry)
 {
 	unsigned long tag;

 	__asm__ __volatile__("ldxa	[%1] %2, %0"
 			     : "=r" (tag)
 			     : "r" (entry << 3), "i" (ASI_DTLB_TAG_READ));
 	return tag;
 }

 static __inline__ void spitfire_put_dtlb_data(int entry, unsigned long data)
 {
 	__asm__ __volatile__("stxa	%0, [%1] %2\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (data), "r" (entry << 3),
 			       "i" (ASI_DTLB_DATA_ACCESS));
 }

 static __inline__ unsigned long spitfire_get_itlb_data(int entry)
 {
 	unsigned long data;

 	__asm__ __volatile__("ldxa	[%1] %2, %0"
 			     : "=r" (data)
 			     : "r" (entry << 3), "i" (ASI_ITLB_DATA_ACCESS));

 	/* Clear TTE diag bits. */
 	data &= ~0x0003fe0000000000UL;

 	return data;
 }

 static __inline__ unsigned long spitfire_get_itlb_tag(int entry)
 {
 	unsigned long tag;

 	__asm__ __volatile__("ldxa	[%1] %2, %0"
 			     : "=r" (tag)
 			     : "r" (entry << 3), "i" (ASI_ITLB_TAG_READ));
 	return tag;
 }

 static __inline__ void spitfire_put_itlb_data(int entry, unsigned long data)
 {
 	__asm__ __volatile__("stxa	%0, [%1] %2\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (data), "r" (entry << 3),
 			       "i" (ASI_ITLB_DATA_ACCESS));
 }

 /* Spitfire hardware assisted TLB flushes. */

 /* Context level flushes. */
 static __inline__ void spitfire_flush_dtlb_primary_context(void)
 {
 	__asm__ __volatile__("stxa	%%g0, [%0] %1\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (0x40), "i" (ASI_DMMU_DEMAP));
 }

 static __inline__ void spitfire_flush_itlb_primary_context(void)
 {
 	__asm__ __volatile__("stxa	%%g0, [%0] %1\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (0x40), "i" (ASI_IMMU_DEMAP));
 }

 static __inline__ void spitfire_flush_dtlb_secondary_context(void)
 {
 	__asm__ __volatile__("stxa	%%g0, [%0] %1\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (0x50), "i" (ASI_DMMU_DEMAP));
 }

 static __inline__ void spitfire_flush_itlb_secondary_context(void)
 {
 	__asm__ __volatile__("stxa	%%g0, [%0] %1\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (0x50), "i" (ASI_IMMU_DEMAP));
 }

 static __inline__ void spitfire_flush_dtlb_nucleus_context(void)
 {
 	__asm__ __volatile__("stxa	%%g0, [%0] %1\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (0x60), "i" (ASI_DMMU_DEMAP));
 }

 static __inline__ void spitfire_flush_itlb_nucleus_context(void)
 {
 	__asm__ __volatile__("stxa	%%g0, [%0] %1\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (0x60), "i" (ASI_IMMU_DEMAP));
 }

 /* Page level flushes. */
 static __inline__ void spitfire_flush_dtlb_primary_page(unsigned long page)
 {
 	__asm__ __volatile__("stxa	%%g0, [%0] %1\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (page), "i" (ASI_DMMU_DEMAP));
 }

 static __inline__ void spitfire_flush_itlb_primary_page(unsigned long page)
 {
 	__asm__ __volatile__("stxa	%%g0, [%0] %1\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (page), "i" (ASI_IMMU_DEMAP));
 }

 static __inline__ void spitfire_flush_dtlb_secondary_page(unsigned long page)
 {
 	__asm__ __volatile__("stxa	%%g0, [%0] %1\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (page | 0x10), "i" (ASI_DMMU_DEMAP));
 }

 static __inline__ void spitfire_flush_itlb_secondary_page(unsigned long page)
 {
 	__asm__ __volatile__("stxa	%%g0, [%0] %1\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (page | 0x10), "i" (ASI_IMMU_DEMAP));
 }

 static __inline__ void spitfire_flush_dtlb_nucleus_page(unsigned long page)
 {
 	__asm__ __volatile__("stxa	%%g0, [%0] %1\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (page | 0x20), "i" (ASI_DMMU_DEMAP));
 }

 static __inline__ void spitfire_flush_itlb_nucleus_page(unsigned long page)
 {
 	__asm__ __volatile__("stxa	%%g0, [%0] %1\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (page | 0x20), "i" (ASI_IMMU_DEMAP));
 }

 /* Cheetah has "all non-locked" tlb flushes. */
 static __inline__ void cheetah_flush_dtlb_all(void)
 {
 	__asm__ __volatile__("stxa	%%g0, [%0] %1\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (0x80), "i" (ASI_DMMU_DEMAP));
 }

 static __inline__ void cheetah_flush_itlb_all(void)
 {
 	__asm__ __volatile__("stxa	%%g0, [%0] %1\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (0x80), "i" (ASI_IMMU_DEMAP));
 }

 /* Cheetah has a 4-tlb layout so direct access is a bit different.
  * The first two TLBs are fully assosciative, hold 16 entries, and are
  * used only for locked and >8K sized translations.  One exists for
  * data accesses and one for instruction accesses.
  *
  * The third TLB is for data accesses to 8K non-locked translations, is
  * 2 way assosciative, and holds 512 entries.  The fourth TLB is for
  * instruction accesses to 8K non-locked translations, is 2 way
  * assosciative, and holds 128 entries.
  *
  * Cheetah has some bug where bogus data can be returned from
  * ASI_{D,I}TLB_DATA_ACCESS loads, doing the load twice fixes
  * the problem for me. -DaveM
  */
 static __inline__ unsigned long cheetah_get_ldtlb_data(int entry)
 {
 	unsigned long data;

 	__asm__ __volatile__("ldxa	[%1] %2, %%g0\n\t"
 			     "ldxa	[%1] %2, %0"
 			     : "=r" (data)
 			     : "r" ((0 << 16) | (entry << 3)),
 			     "i" (ASI_DTLB_DATA_ACCESS));

 	return data;
 }

 static __inline__ unsigned long cheetah_get_litlb_data(int entry)
 {
 	unsigned long data;

 	__asm__ __volatile__("ldxa	[%1] %2, %%g0\n\t"
 			     "ldxa	[%1] %2, %0"
 			     : "=r" (data)
 			     : "r" ((0 << 16) | (entry << 3)),
 			     "i" (ASI_ITLB_DATA_ACCESS));

 	return data;
 }

 static __inline__ unsigned long cheetah_get_ldtlb_tag(int entry)
 {
 	unsigned long tag;

 	__asm__ __volatile__("ldxa	[%1] %2, %0"
 			     : "=r" (tag)
 			     : "r" ((0 << 16) | (entry << 3)),
 			     "i" (ASI_DTLB_TAG_READ));

 	return tag;
 }

 static __inline__ unsigned long cheetah_get_litlb_tag(int entry)
 {
 	unsigned long tag;

 	__asm__ __volatile__("ldxa	[%1] %2, %0"
 			     : "=r" (tag)
 			     : "r" ((0 << 16) | (entry << 3)),
 			     "i" (ASI_ITLB_TAG_READ));

 	return tag;
 }

 static __inline__ void cheetah_put_ldtlb_data(int entry, unsigned long data)
 {
 	__asm__ __volatile__("stxa	%0, [%1] %2\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (data),
 			       "r" ((0 << 16) | (entry << 3)),
 			       "i" (ASI_DTLB_DATA_ACCESS));
 }

 static __inline__ void cheetah_put_litlb_data(int entry, unsigned long data)
 {
 	__asm__ __volatile__("stxa	%0, [%1] %2\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (data),
 			       "r" ((0 << 16) | (entry << 3)),
 			       "i" (ASI_ITLB_DATA_ACCESS));
 }

 static __inline__ unsigned long cheetah_get_dtlb_data(int entry, int tlb)
 {
 	unsigned long data;

 	__asm__ __volatile__("ldxa	[%1] %2, %%g0\n\t"
 			     "ldxa	[%1] %2, %0"
 			     : "=r" (data)
 			     : "r" ((tlb << 16) | (entry << 3)), "i" (ASI_DTLB_DATA_ACCESS));

 	return data;
 }

 static __inline__ unsigned long cheetah_get_dtlb_tag(int entry, int tlb)
 {
 	unsigned long tag;

 	__asm__ __volatile__("ldxa	[%1] %2, %0"
 			     : "=r" (tag)
 			     : "r" ((tlb << 16) | (entry << 3)), "i" (ASI_DTLB_TAG_READ));
 	return tag;
 }

 static __inline__ void cheetah_put_dtlb_data(int entry, unsigned long data, int tlb)
 {
 	__asm__ __volatile__("stxa	%0, [%1] %2\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (data),
 			       "r" ((tlb << 16) | (entry << 3)),
 			       "i" (ASI_DTLB_DATA_ACCESS));
 }

 static __inline__ unsigned long cheetah_get_itlb_data(int entry)
 {
 	unsigned long data;

 	__asm__ __volatile__("ldxa	[%1] %2, %%g0\n\t"
 			     "ldxa	[%1] %2, %0"
 			     : "=r" (data)
 			     : "r" ((2 << 16) | (entry << 3)),
                                "i" (ASI_ITLB_DATA_ACCESS));

 	return data;
 }

 static __inline__ unsigned long cheetah_get_itlb_tag(int entry)
 {
 	unsigned long tag;

 	__asm__ __volatile__("ldxa	[%1] %2, %0"
 			     : "=r" (tag)
 			     : "r" ((2 << 16) | (entry << 3)), "i" (ASI_ITLB_TAG_READ));
 	return tag;
 }

 static __inline__ void cheetah_put_itlb_data(int entry, unsigned long data)
 {
 	__asm__ __volatile__("stxa	%0, [%1] %2\n\t"
 			     "membar	#Sync"
 			     : /* No outputs */
 			     : "r" (data), "r" ((2 << 16) | (entry << 3)),
 			       "i" (ASI_ITLB_DATA_ACCESS));
 }

 #endif /* !(__ASSEMBLY__) */

 #endif /* !(_SPARC64_SPITFIRE_H) */
	/* $Id: spitfire.h,v 1.18 2001/11/29 16:42:10 kanoj Exp $
	* spitfire.h: SpitFire/BlackBird/Cheetah inline MMU operations.
	*
	* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
	*/

	#ifndef _SPARC64_SPITFIRE_H
	#define _SPARC64_SPITFIRE_H

	#include <asm/asi.h>

	/* The following register addresses are accessible via ASI_DMMU
	* and ASI_IMMU, that is there is a distinct and unique copy of
	* each these registers for each TLB.
	*/
	#define TSB_TAG_TARGET 0x0000000000000000 /* All chips */
	#define TLB_SFSR 0x0000000000000018 /* All chips */
	#define TSB_REG 0x0000000000000028 /* All chips */
	#define TLB_TAG_ACCESS 0x0000000000000030 /* All chips */
	#define VIRT_WATCHPOINT 0x0000000000000038 /* All chips */
	#define PHYS_WATCHPOINT 0x0000000000000040 /* All chips */
	#define TSB_EXTENSION_P 0x0000000000000048 /* Ultra-III and later */
	#define TSB_EXTENSION_S 0x0000000000000050 /* Ultra-III and later, D-TLB only */
	#define TSB_EXTENSION_N 0x0000000000000058 /* Ultra-III and later */
	#define TLB_TAG_ACCESS_EXT 0x0000000000000060 /* Ultra-III+ and later */

	/* These registers only exist as one entity, and are accessed
	* via ASI_DMMU only.
	*/
	#define PRIMARY_CONTEXT 0x0000000000000008
	#define SECONDARY_CONTEXT 0x0000000000000010
	#define DMMU_SFAR 0x0000000000000020
	#define VIRT_WATCHPOINT 0x0000000000000038
	#define PHYS_WATCHPOINT 0x0000000000000040

	#define SPITFIRE_HIGHEST_LOCKED_TLBENT (64 - 1)
	#define CHEETAH_HIGHEST_LOCKED_TLBENT (16 - 1)

	#define L1DCACHE_SIZE 0x4000

	#ifndef __ASSEMBLY__

	enum ultra_tlb_layout {
	spitfire = 0,
	cheetah = 1,
	cheetah_plus = 2,
	};

	extern enum ultra_tlb_layout tlb_type;

	#define sparc64_highest_locked_tlbent() \
	(tlb_type == spitfire ? \
	SPITFIRE_HIGHEST_LOCKED_TLBENT : \
	CHEETAH_HIGHEST_LOCKED_TLBENT)

	static __inline__ unsigned long spitfire_get_isfsr(void)
	{
	unsigned long ret;

	__asm__ __volatile__("ldxa [%1] %2, %0"
	: "=r" (ret)
	: "r" (TLB_SFSR), "i" (ASI_IMMU));
	return ret;
	}

	static __inline__ unsigned long spitfire_get_dsfsr(void)
	{
	unsigned long ret;

	__asm__ __volatile__("ldxa [%1] %2, %0"
	: "=r" (ret)
	: "r" (TLB_SFSR), "i" (ASI_DMMU));
	return ret;
	}

	static __inline__ unsigned long spitfire_get_sfar(void)
	{
	unsigned long ret;

	__asm__ __volatile__("ldxa [%1] %2, %0"
	: "=r" (ret)
	: "r" (DMMU_SFAR), "i" (ASI_DMMU));
	return ret;
	}

	static __inline__ void spitfire_put_isfsr(unsigned long sfsr)
	{
	__asm__ __volatile__("stxa %0, [%1] %2\n\t"
	"membar #Sync"
	: /* no outputs */
	: "r" (sfsr), "r" (TLB_SFSR), "i" (ASI_IMMU));
	}

	static __inline__ void spitfire_put_dsfsr(unsigned long sfsr)
	{
	__asm__ __volatile__("stxa %0, [%1] %2\n\t"
	"membar #Sync"
	: /* no outputs */
	: "r" (sfsr), "r" (TLB_SFSR), "i" (ASI_DMMU));
	}

	/* The data cache is write through, so this just invalidates the
	* specified line.
	*/
	static __inline__ void spitfire_put_dcache_tag(unsigned long addr, unsigned long tag)
	{
	__asm__ __volatile__("stxa %0, [%1] %2\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (tag), "r" (addr), "i" (ASI_DCACHE_TAG));
	__asm__ __volatile__ ("membar #Sync" : : : "memory");
	}

	/* The instruction cache lines are flushed with this, but note that
	* this does not flush the pipeline. It is possible for a line to
	* get flushed but stale instructions to still be in the pipeline,
	* a flush instruction (to any address) is sufficient to handle
	* this issue after the line is invalidated.
	*/
	static __inline__ void spitfire_put_icache_tag(unsigned long addr, unsigned long tag)
	{
	__asm__ __volatile__("stxa %0, [%1] %2\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (tag), "r" (addr), "i" (ASI_IC_TAG));
	}

	static __inline__ unsigned long spitfire_get_dtlb_data(int entry)
	{
	unsigned long data;

	__asm__ __volatile__("ldxa [%1] %2, %0"
	: "=r" (data)
	: "r" (entry << 3), "i" (ASI_DTLB_DATA_ACCESS));

	/* Clear TTE diag bits. */
	data &= ~0x0003fe0000000000UL;

	return data;
	}

	static __inline__ unsigned long spitfire_get_dtlb_tag(int entry)
	{
	unsigned long tag;

	__asm__ __volatile__("ldxa [%1] %2, %0"
	: "=r" (tag)
	: "r" (entry << 3), "i" (ASI_DTLB_TAG_READ));
	return tag;
	}

	static __inline__ void spitfire_put_dtlb_data(int entry, unsigned long data)
	{
	__asm__ __volatile__("stxa %0, [%1] %2\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (data), "r" (entry << 3),
	"i" (ASI_DTLB_DATA_ACCESS));
	}

	static __inline__ unsigned long spitfire_get_itlb_data(int entry)
	{
	unsigned long data;

	__asm__ __volatile__("ldxa [%1] %2, %0"
	: "=r" (data)
	: "r" (entry << 3), "i" (ASI_ITLB_DATA_ACCESS));

	/* Clear TTE diag bits. */
	data &= ~0x0003fe0000000000UL;

	return data;
	}

	static __inline__ unsigned long spitfire_get_itlb_tag(int entry)
	{
	unsigned long tag;

	__asm__ __volatile__("ldxa [%1] %2, %0"
	: "=r" (tag)
	: "r" (entry << 3), "i" (ASI_ITLB_TAG_READ));
	return tag;
	}

	static __inline__ void spitfire_put_itlb_data(int entry, unsigned long data)
	{
	__asm__ __volatile__("stxa %0, [%1] %2\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (data), "r" (entry << 3),
	"i" (ASI_ITLB_DATA_ACCESS));
	}

	/* Spitfire hardware assisted TLB flushes. */

	/* Context level flushes. */
	static __inline__ void spitfire_flush_dtlb_primary_context(void)
	{
	__asm__ __volatile__("stxa %%g0, [%0] %1\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (0x40), "i" (ASI_DMMU_DEMAP));
	}

	static __inline__ void spitfire_flush_itlb_primary_context(void)
	{
	__asm__ __volatile__("stxa %%g0, [%0] %1\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (0x40), "i" (ASI_IMMU_DEMAP));
	}

	static __inline__ void spitfire_flush_dtlb_secondary_context(void)
	{
	__asm__ __volatile__("stxa %%g0, [%0] %1\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (0x50), "i" (ASI_DMMU_DEMAP));
	}

	static __inline__ void spitfire_flush_itlb_secondary_context(void)
	{
	__asm__ __volatile__("stxa %%g0, [%0] %1\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (0x50), "i" (ASI_IMMU_DEMAP));
	}

	static __inline__ void spitfire_flush_dtlb_nucleus_context(void)
	{
	__asm__ __volatile__("stxa %%g0, [%0] %1\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (0x60), "i" (ASI_DMMU_DEMAP));
	}

	static __inline__ void spitfire_flush_itlb_nucleus_context(void)
	{
	__asm__ __volatile__("stxa %%g0, [%0] %1\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (0x60), "i" (ASI_IMMU_DEMAP));
	}

	/* Page level flushes. */
	static __inline__ void spitfire_flush_dtlb_primary_page(unsigned long page)
	{
	__asm__ __volatile__("stxa %%g0, [%0] %1\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (page), "i" (ASI_DMMU_DEMAP));
	}

	static __inline__ void spitfire_flush_itlb_primary_page(unsigned long page)
	{
	__asm__ __volatile__("stxa %%g0, [%0] %1\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (page), "i" (ASI_IMMU_DEMAP));
	}

	static __inline__ void spitfire_flush_dtlb_secondary_page(unsigned long page)
	{
	__asm__ __volatile__("stxa %%g0, [%0] %1\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (page \| 0x10), "i" (ASI_DMMU_DEMAP));
	}

	static __inline__ void spitfire_flush_itlb_secondary_page(unsigned long page)
	{
	__asm__ __volatile__("stxa %%g0, [%0] %1\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (page \| 0x10), "i" (ASI_IMMU_DEMAP));
	}

	static __inline__ void spitfire_flush_dtlb_nucleus_page(unsigned long page)
	{
	__asm__ __volatile__("stxa %%g0, [%0] %1\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (page \| 0x20), "i" (ASI_DMMU_DEMAP));
	}

	static __inline__ void spitfire_flush_itlb_nucleus_page(unsigned long page)
	{
	__asm__ __volatile__("stxa %%g0, [%0] %1\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (page \| 0x20), "i" (ASI_IMMU_DEMAP));
	}

	/* Cheetah has "all non-locked" tlb flushes. */
	static __inline__ void cheetah_flush_dtlb_all(void)
	{
	__asm__ __volatile__("stxa %%g0, [%0] %1\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (0x80), "i" (ASI_DMMU_DEMAP));
	}

	static __inline__ void cheetah_flush_itlb_all(void)
	{
	__asm__ __volatile__("stxa %%g0, [%0] %1\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (0x80), "i" (ASI_IMMU_DEMAP));
	}

	/* Cheetah has a 4-tlb layout so direct access is a bit different.
	* The first two TLBs are fully assosciative, hold 16 entries, and are
	* used only for locked and >8K sized translations. One exists for
	* data accesses and one for instruction accesses.
	*
	* The third TLB is for data accesses to 8K non-locked translations, is
	* 2 way assosciative, and holds 512 entries. The fourth TLB is for
	* instruction accesses to 8K non-locked translations, is 2 way
	* assosciative, and holds 128 entries.
	*
	* Cheetah has some bug where bogus data can be returned from
	* ASI_{D,I}TLB_DATA_ACCESS loads, doing the load twice fixes
	* the problem for me. -DaveM
	*/
	static __inline__ unsigned long cheetah_get_ldtlb_data(int entry)
	{
	unsigned long data;

	__asm__ __volatile__("ldxa [%1] %2, %%g0\n\t"
	"ldxa [%1] %2, %0"
	: "=r" (data)
	: "r" ((0 << 16) \| (entry << 3)),
	"i" (ASI_DTLB_DATA_ACCESS));

	return data;
	}

	static __inline__ unsigned long cheetah_get_litlb_data(int entry)
	{
	unsigned long data;

	__asm__ __volatile__("ldxa [%1] %2, %%g0\n\t"
	"ldxa [%1] %2, %0"
	: "=r" (data)
	: "r" ((0 << 16) \| (entry << 3)),
	"i" (ASI_ITLB_DATA_ACCESS));

	return data;
	}

	static __inline__ unsigned long cheetah_get_ldtlb_tag(int entry)
	{
	unsigned long tag;

	__asm__ __volatile__("ldxa [%1] %2, %0"
	: "=r" (tag)
	: "r" ((0 << 16) \| (entry << 3)),
	"i" (ASI_DTLB_TAG_READ));

	return tag;
	}

	static __inline__ unsigned long cheetah_get_litlb_tag(int entry)
	{
	unsigned long tag;

	__asm__ __volatile__("ldxa [%1] %2, %0"
	: "=r" (tag)
	: "r" ((0 << 16) \| (entry << 3)),
	"i" (ASI_ITLB_TAG_READ));

	return tag;
	}

	static __inline__ void cheetah_put_ldtlb_data(int entry, unsigned long data)
	{
	__asm__ __volatile__("stxa %0, [%1] %2\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (data),
	"r" ((0 << 16) \| (entry << 3)),
	"i" (ASI_DTLB_DATA_ACCESS));
	}

	static __inline__ void cheetah_put_litlb_data(int entry, unsigned long data)
	{
	__asm__ __volatile__("stxa %0, [%1] %2\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (data),
	"r" ((0 << 16) \| (entry << 3)),
	"i" (ASI_ITLB_DATA_ACCESS));
	}

	static __inline__ unsigned long cheetah_get_dtlb_data(int entry, int tlb)
	{
	unsigned long data;

	__asm__ __volatile__("ldxa [%1] %2, %%g0\n\t"
	"ldxa [%1] %2, %0"
	: "=r" (data)
	: "r" ((tlb << 16) \| (entry << 3)), "i" (ASI_DTLB_DATA_ACCESS));

	return data;
	}

	static __inline__ unsigned long cheetah_get_dtlb_tag(int entry, int tlb)
	{
	unsigned long tag;

	__asm__ __volatile__("ldxa [%1] %2, %0"
	: "=r" (tag)
	: "r" ((tlb << 16) \| (entry << 3)), "i" (ASI_DTLB_TAG_READ));
	return tag;
	}

	static __inline__ void cheetah_put_dtlb_data(int entry, unsigned long data, int tlb)
	{
	__asm__ __volatile__("stxa %0, [%1] %2\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (data),
	"r" ((tlb << 16) \| (entry << 3)),
	"i" (ASI_DTLB_DATA_ACCESS));
	}

	static __inline__ unsigned long cheetah_get_itlb_data(int entry)
	{
	unsigned long data;

	__asm__ __volatile__("ldxa [%1] %2, %%g0\n\t"
	"ldxa [%1] %2, %0"
	: "=r" (data)
	: "r" ((2 << 16) \| (entry << 3)),
	"i" (ASI_ITLB_DATA_ACCESS));

	return data;
	}

	static __inline__ unsigned long cheetah_get_itlb_tag(int entry)
	{
	unsigned long tag;

	__asm__ __volatile__("ldxa [%1] %2, %0"
	: "=r" (tag)
	: "r" ((2 << 16) \| (entry << 3)), "i" (ASI_ITLB_TAG_READ));
	return tag;
	}

	static __inline__ void cheetah_put_itlb_data(int entry, unsigned long data)
	{
	__asm__ __volatile__("stxa %0, [%1] %2\n\t"
	"membar #Sync"
	: /* No outputs */
	: "r" (data), "r" ((2 << 16) \| (entry << 3)),
	"i" (ASI_ITLB_DATA_ACCESS));
	}

	#endif /* !(__ASSEMBLY__) */

	#endif /* !(_SPARC64_SPITFIRE_H) */