[deliverable/linux.git] / arch / sparc / include / asm / leon.h

/*
 * Copyright (C) 2004 Konrad Eisele (eiselekd@web.de,konrad@gaisler.com) Gaisler Research
 * Copyright (C) 2004 Stefan Holst (mail@s-holst.de) Uni-Stuttgart
 * Copyright (C) 2009 Daniel Hellstrom (daniel@gaisler.com) Aeroflex Gaisler AB
 * Copyright (C) 2009 Konrad Eisele (konrad@gaisler.com) Aeroflex Gaisler AB
 */

#ifndef LEON_H_INCLUDE
#define LEON_H_INCLUDE

#ifdef CONFIG_SPARC_LEON

#define ASI_LEON_NOCACHE	0x01

#define ASI_LEON_DCACHE_MISS	0x1

#define ASI_LEON_CACHEREGS	0x02
#define ASI_LEON_IFLUSH		0x10
#define ASI_LEON_DFLUSH		0x11

#define ASI_LEON_MMUFLUSH	0x18
#define ASI_LEON_MMUREGS	0x19
#define ASI_LEON_BYPASS		0x1c
#define ASI_LEON_FLUSH_PAGE	0x10

/* mmu register access, ASI_LEON_MMUREGS */
#define LEON_CNR_CTRL		0x000
#define LEON_CNR_CTXP		0x100
#define LEON_CNR_CTX		0x200
#define LEON_CNR_F		0x300
#define LEON_CNR_FADDR		0x400

#define LEON_CNR_CTX_NCTX	256	/*number of MMU ctx */

#define LEON_CNR_CTRL_TLBDIS	0x80000000

#define LEON_MMUTLB_ENT_MAX	64

/*
 * diagnostic access from mmutlb.vhd:
 * 0: pte address
 * 4: pte
 * 8: additional flags
 */
#define LEON_DIAGF_LVL		0x3
#define LEON_DIAGF_WR		0x8
#define LEON_DIAGF_WR_SHIFT	3
#define LEON_DIAGF_HIT		0x10
#define LEON_DIAGF_HIT_SHIFT	4
#define LEON_DIAGF_CTX		0x1fe0
#define LEON_DIAGF_CTX_SHIFT	5
#define LEON_DIAGF_VALID	0x2000
#define LEON_DIAGF_VALID_SHIFT	13

/* irq masks */
#define LEON_HARD_INT(x)	(1 << (x))	/* irq 0-15 */
#define LEON_IRQMASK_R		0x0000fffe	/* bit 15- 1 of lregs.irqmask */
#define LEON_IRQPRIO_R		0xfffe0000	/* bit 31-17 of lregs.irqmask */

/* leon uart register definitions */
#define LEON_OFF_UDATA	0x0
#define LEON_OFF_USTAT	0x4
#define LEON_OFF_UCTRL	0x8
#define LEON_OFF_USCAL	0xc

#define LEON_UCTRL_RE	0x01
#define LEON_UCTRL_TE	0x02
#define LEON_UCTRL_RI	0x04
#define LEON_UCTRL_TI	0x08
#define LEON_UCTRL_PS	0x10
#define LEON_UCTRL_PE	0x20
#define LEON_UCTRL_FL	0x40
#define LEON_UCTRL_LB	0x80

#define LEON_USTAT_DR	0x01
#define LEON_USTAT_TS	0x02
#define LEON_USTAT_TH	0x04
#define LEON_USTAT_BR	0x08
#define LEON_USTAT_OV	0x10
#define LEON_USTAT_PE	0x20
#define LEON_USTAT_FE	0x40

#define LEON_MCFG2_SRAMDIS		0x00002000
#define LEON_MCFG2_SDRAMEN		0x00004000
#define LEON_MCFG2_SRAMBANKSZ		0x00001e00	/* [12-9] */
#define LEON_MCFG2_SRAMBANKSZ_SHIFT	9
#define LEON_MCFG2_SDRAMBANKSZ		0x03800000	/* [25-23] */
#define LEON_MCFG2_SDRAMBANKSZ_SHIFT	23

#define LEON_TCNT0_MASK	0x7fffff

#define LEON_USTAT_ERROR (LEON_USTAT_OV | LEON_USTAT_PE | LEON_USTAT_FE)
/* no break yet */

#define ASI_LEON3_SYSCTRL		0x02
#define ASI_LEON3_SYSCTRL_ICFG		0x08
#define ASI_LEON3_SYSCTRL_DCFG		0x0c
#define ASI_LEON3_SYSCTRL_CFG_SNOOPING (1 << 27)
#define ASI_LEON3_SYSCTRL_CFG_SSIZE(c) (1 << ((c >> 20) & 0xf))

#ifndef __ASSEMBLY__

/* do a virtual address read without cache */
static inline unsigned long leon_readnobuffer_reg(unsigned long paddr)
{
	unsigned long retval;
	__asm__ __volatile__("lda [%1] %2, %0\n\t" :
			     "=r"(retval) : "r"(paddr), "i"(ASI_LEON_NOCACHE));
	return retval;
}

/* do a physical address bypass write, i.e. for 0x80000000 */
static inline void leon_store_reg(unsigned long paddr, unsigned long value)
{
	__asm__ __volatile__("sta %0, [%1] %2\n\t" : : "r"(value), "r"(paddr),
			     "i"(ASI_LEON_BYPASS) : "memory");
}

/* do a physical address bypass load, i.e. for 0x80000000 */
static inline unsigned long leon_load_reg(unsigned long paddr)
{
	unsigned long retval;
	__asm__ __volatile__("lda [%1] %2, %0\n\t" :
			     "=r"(retval) : "r"(paddr), "i"(ASI_LEON_BYPASS));
	return retval;
}

static inline void leon_srmmu_disabletlb(void)
{
	unsigned int retval;
	__asm__ __volatile__("lda [%%g0] %2, %0\n\t" : "=r"(retval) : "r"(0),
			     "i"(ASI_LEON_MMUREGS));
	retval |= LEON_CNR_CTRL_TLBDIS;
	__asm__ __volatile__("sta %0, [%%g0] %2\n\t" : : "r"(retval), "r"(0),
			     "i"(ASI_LEON_MMUREGS) : "memory");
}

static inline void leon_srmmu_enabletlb(void)
{
	unsigned int retval;
	__asm__ __volatile__("lda [%%g0] %2, %0\n\t" : "=r"(retval) : "r"(0),
			     "i"(ASI_LEON_MMUREGS));
	retval = retval & ~LEON_CNR_CTRL_TLBDIS;
	__asm__ __volatile__("sta %0, [%%g0] %2\n\t" : : "r"(retval), "r"(0),
			     "i"(ASI_LEON_MMUREGS) : "memory");
}

/* macro access for leon_load_reg() and leon_store_reg() */
#define LEON3_BYPASS_LOAD_PA(x)	    (leon_load_reg((unsigned long)(x)))
#define LEON3_BYPASS_STORE_PA(x, v) (leon_store_reg((unsigned long)(x), (unsigned long)(v)))
#define LEON3_BYPASS_ANDIN_PA(x, v) LEON3_BYPASS_STORE_PA(x, LEON3_BYPASS_LOAD_PA(x) & v)
#define LEON3_BYPASS_ORIN_PA(x, v)  LEON3_BYPASS_STORE_PA(x, LEON3_BYPASS_LOAD_PA(x) | v)
#define LEON_BYPASS_LOAD_PA(x)      leon_load_reg((unsigned long)(x))
#define LEON_BYPASS_STORE_PA(x, v)  leon_store_reg((unsigned long)(x), (unsigned long)(v))
#define LEON_REGLOAD_PA(x)          leon_load_reg((unsigned long)(x)+LEON_PREGS)
#define LEON_REGSTORE_PA(x, v)      leon_store_reg((unsigned long)(x)+LEON_PREGS, (unsigned long)(v))
#define LEON_REGSTORE_OR_PA(x, v)   LEON_REGSTORE_PA(x, LEON_REGLOAD_PA(x) | (unsigned long)(v))
#define LEON_REGSTORE_AND_PA(x, v)  LEON_REGSTORE_PA(x, LEON_REGLOAD_PA(x) & (unsigned long)(v))

/* macro access for leon_readnobuffer_reg() */
#define LEON_BYPASSCACHE_LOAD_VA(x) leon_readnobuffer_reg((unsigned long)(x))

extern void leon_init(void);
extern void leon_switch_mm(void);
extern void leon_init_IRQ(void);

extern unsigned long last_valid_pfn;

static inline unsigned long sparc_leon3_get_dcachecfg(void)
{
	unsigned int retval;
	__asm__ __volatile__("lda [%1] %2, %0\n\t" :
			     "=r"(retval) :
			     "r"(ASI_LEON3_SYSCTRL_DCFG),
			     "i"(ASI_LEON3_SYSCTRL));
	return retval;
}

/* enable snooping */
static inline void sparc_leon3_enable_snooping(void)
{
	__asm__ __volatile__ ("lda [%%g0] 2, %%l1\n\t"
			  "set 0x800000, %%l2\n\t"
			  "or  %%l2, %%l1, %%l2\n\t"
			  "sta %%l2, [%%g0] 2\n\t" : : : "l1", "l2");
};

static inline int sparc_leon3_snooping_enabled(void)
{
	u32 cctrl;
	__asm__ __volatile__("lda [%%g0] 2, %0\n\t" : "=r"(cctrl));
        return (cctrl >> 23) & 1;
};

static inline void sparc_leon3_disable_cache(void)
{
	__asm__ __volatile__ ("lda [%%g0] 2, %%l1\n\t"
			  "set 0x00000f, %%l2\n\t"
			  "andn  %%l2, %%l1, %%l2\n\t"
			  "sta %%l2, [%%g0] 2\n\t" : : : "l1", "l2");
};

static inline unsigned long sparc_leon3_asr17(void)
{
	u32 asr17;
	__asm__ __volatile__ ("rd %%asr17, %0\n\t" : "=r"(asr17));
	return asr17;
};

static inline int sparc_leon3_cpuid(void)
{
	return sparc_leon3_asr17() >> 28;
}

#endif /*!__ASSEMBLY__*/

#ifdef CONFIG_SMP
# define LEON3_IRQ_IPI_DEFAULT		13
# define LEON3_IRQ_TICKER		(leon3_ticker_irq)
# define LEON3_IRQ_CROSS_CALL		15
#endif

#if defined(PAGE_SIZE_LEON_8K)
#define LEON_PAGE_SIZE_LEON 1
#elif defined(PAGE_SIZE_LEON_16K)
#define LEON_PAGE_SIZE_LEON 2)
#else
#define LEON_PAGE_SIZE_LEON 0
#endif

#if LEON_PAGE_SIZE_LEON == 0
/* [ 8, 6, 6 ] + 12 */
#define LEON_PGD_SH    24
#define LEON_PGD_M     0xff
#define LEON_PMD_SH    18
#define LEON_PMD_SH_V  (LEON_PGD_SH-2)
#define LEON_PMD_M     0x3f
#define LEON_PTE_SH    12
#define LEON_PTE_M     0x3f
#elif LEON_PAGE_SIZE_LEON == 1
/* [ 7, 6, 6 ] + 13 */
#define LEON_PGD_SH    25
#define LEON_PGD_M     0x7f
#define LEON_PMD_SH    19
#define LEON_PMD_SH_V  (LEON_PGD_SH-1)
#define LEON_PMD_M     0x3f
#define LEON_PTE_SH    13
#define LEON_PTE_M     0x3f
#elif LEON_PAGE_SIZE_LEON == 2
/* [ 6, 6, 6 ] + 14 */
#define LEON_PGD_SH    26
#define LEON_PGD_M     0x3f
#define LEON_PMD_SH    20
#define LEON_PMD_SH_V  (LEON_PGD_SH-0)
#define LEON_PMD_M     0x3f
#define LEON_PTE_SH    14
#define LEON_PTE_M     0x3f
#elif LEON_PAGE_SIZE_LEON == 3
/* [ 4, 7, 6 ] + 15 */
#define LEON_PGD_SH    28
#define LEON_PGD_M     0x0f
#define LEON_PMD_SH    21
#define LEON_PMD_SH_V  (LEON_PGD_SH-0)
#define LEON_PMD_M     0x7f
#define LEON_PTE_SH    15
#define LEON_PTE_M     0x3f
#else
#error cannot determine LEON_PAGE_SIZE_LEON
#endif

#define PAGE_MIN_SHIFT   (12)
#define PAGE_MIN_SIZE    (1UL << PAGE_MIN_SHIFT)

#define LEON3_XCCR_SETS_MASK  0x07000000UL
#define LEON3_XCCR_SSIZE_MASK 0x00f00000UL

#define LEON2_CCR_DSETS_MASK 0x03000000UL
#define LEON2_CFG_SSIZE_MASK 0x00007000UL

#ifndef __ASSEMBLY__
extern unsigned long srmmu_swprobe(unsigned long vaddr, unsigned long *paddr);
extern void leon_flush_icache_all(void);
extern void leon_flush_dcache_all(void);
extern void leon_flush_cache_all(void);
extern void leon_flush_tlb_all(void);
extern int leon_flush_during_switch;
extern int leon_flush_needed(void);

struct vm_area_struct;
extern void leon_flush_icache_all(void);
extern void leon_flush_dcache_all(void);
extern void leon_flush_pcache_all(struct vm_area_struct *vma, unsigned long page);
extern void leon_flush_cache_all(void);
extern void leon_flush_tlb_all(void);
extern int leon_flush_during_switch;
extern int leon_flush_needed(void);
extern void leon_flush_pcache_all(struct vm_area_struct *vma, unsigned long page);

/* struct that hold LEON3 cache configuration registers */
struct leon3_cacheregs {
	unsigned long ccr;	/* 0x00 - Cache Control Register  */
	unsigned long iccr;     /* 0x08 - Instruction Cache Configuration Register */
	unsigned long dccr;	/* 0x0c - Data Cache Configuration Register */
};

/* struct that hold LEON2 cache configuration register
 * & configuration register
 */
struct leon2_cacheregs {
	unsigned long ccr, cfg;
};

#ifdef __KERNEL__

#include <linux/interrupt.h>

struct device_node;
struct task_struct;
extern unsigned int leon_build_device_irq(unsigned int real_irq,
					   irq_flow_handler_t flow_handler,
					   const char *name, int do_ack);
extern void leon_update_virq_handling(unsigned int virq,
			      irq_flow_handler_t flow_handler,
			      const char *name, int do_ack);
extern void leon_clear_clock_irq(void);
extern void leon_load_profile_irq(int cpu, unsigned int limit);
extern void leon_init_timers(irq_handler_t counter_fn);
extern void leon_clear_clock_irq(void);
extern void leon_load_profile_irq(int cpu, unsigned int limit);
extern void leon_trans_init(struct device_node *dp);
extern void leon_node_init(struct device_node *dp, struct device_node ***nextp);
extern void leon_init_IRQ(void);
extern void leon_init(void);
extern unsigned long srmmu_swprobe(unsigned long vaddr, unsigned long *paddr);
extern void init_leon(void);
extern void poke_leonsparc(void);
extern void leon3_getCacheRegs(struct leon3_cacheregs *regs);
extern int leon_flush_needed(void);
extern void leon_switch_mm(void);
extern int srmmu_swprobe_trace;
extern int leon3_ticker_irq;

#ifdef CONFIG_SMP
extern int leon_smp_nrcpus(void);
extern void leon_clear_profile_irq(int cpu);
extern void leon_smp_done(void);
extern void leon_boot_cpus(void);
extern int leon_boot_one_cpu(int i, struct task_struct *);
void leon_init_smp(void);
extern void cpu_idle(void);
extern void init_IRQ(void);
extern void cpu_panic(void);
extern int __leon_processor_id(void);
void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu);
extern irqreturn_t leon_percpu_timer_interrupt(int irq, void *unused);

extern unsigned int real_irq_entry[];
extern unsigned int smpleon_ipi[];
extern unsigned int patchme_maybe_smp_msg[];
extern unsigned int t_nmi[], linux_trap_ipi15_leon[];
extern unsigned int linux_trap_ipi15_sun4m[];
extern int leon_ipi_irq;

#endif /* CONFIG_SMP */

#endif /* __KERNEL__ */

#endif /* __ASSEMBLY__ */

/* macros used in leon_mm.c */
#define PFN(x)           ((x) >> PAGE_SHIFT)
#define _pfn_valid(pfn)	 ((pfn < last_valid_pfn) && (pfn >= PFN(phys_base)))
#define _SRMMU_PTE_PMASK_LEON 0xffffffff

#else /* defined(CONFIG_SPARC_LEON) */

/* nop definitions for !LEON case */
#define leon_init() do {} while (0)
#define leon_switch_mm() do {} while (0)
#define leon_init_IRQ() do {} while (0)
#define init_leon() do {} while (0)
#define leon_smp_done() do {} while (0)
#define leon_boot_cpus() do {} while (0)
#define leon_boot_one_cpu(i, t) 1
#define leon_init_smp() do {} while (0)

#endif /* !defined(CONFIG_SPARC_LEON) */

#endif
Commit	Line	Data
5213a780 KE	1	/*
	2	* Copyright (C) 2004 Konrad Eisele (eiselekd@web.de,konrad@gaisler.com) Gaisler Research
	3	* Copyright (C) 2004 Stefan Holst (mail@s-holst.de) Uni-Stuttgart
	4	* Copyright (C) 2009 Daniel Hellstrom (daniel@gaisler.com) Aeroflex Gaisler AB
	5	* Copyright (C) 2009 Konrad Eisele (konrad@gaisler.com) Aeroflex Gaisler AB
	6	*/
	7
	8	#ifndef LEON_H_INCLUDE
	9	#define LEON_H_INCLUDE
	10
	11	#ifdef CONFIG_SPARC_LEON
	12
	13	#define ASI_LEON_NOCACHE 0x01
	14
	15	#define ASI_LEON_DCACHE_MISS 0x1
	16
	17	#define ASI_LEON_CACHEREGS 0x02
	18	#define ASI_LEON_IFLUSH 0x10
	19	#define ASI_LEON_DFLUSH 0x11
	20
	21	#define ASI_LEON_MMUFLUSH 0x18
	22	#define ASI_LEON_MMUREGS 0x19
	23	#define ASI_LEON_BYPASS 0x1c
	24	#define ASI_LEON_FLUSH_PAGE 0x10
	25
	26	/* mmu register access, ASI_LEON_MMUREGS */
	27	#define LEON_CNR_CTRL 0x000
	28	#define LEON_CNR_CTXP 0x100
	29	#define LEON_CNR_CTX 0x200
	30	#define LEON_CNR_F 0x300
	31	#define LEON_CNR_FADDR 0x400
	32
	33	#define LEON_CNR_CTX_NCTX 256 /number of MMU ctx /
	34
	35	#define LEON_CNR_CTRL_TLBDIS 0x80000000
	36
	37	#define LEON_MMUTLB_ENT_MAX 64
	38
	39	/*
	40	* diagnostic access from mmutlb.vhd:
	41	* 0: pte address
	42	* 4: pte
	43	* 8: additional flags
	44	*/
	45	#define LEON_DIAGF_LVL 0x3
	46	#define LEON_DIAGF_WR 0x8
	47	#define LEON_DIAGF_WR_SHIFT 3
	48	#define LEON_DIAGF_HIT 0x10
	49	#define LEON_DIAGF_HIT_SHIFT 4
	50	#define LEON_DIAGF_CTX 0x1fe0
	51	#define LEON_DIAGF_CTX_SHIFT 5
	52	#define LEON_DIAGF_VALID 0x2000
	53	#define LEON_DIAGF_VALID_SHIFT 13
	54
5213a780 KE	55	/* irq masks */
	56	#define LEON_HARD_INT(x) (1 << (x)) /* irq 0-15 */
	57	#define LEON_IRQMASK_R 0x0000fffe /* bit 15- 1 of lregs.irqmask */
	58	#define LEON_IRQPRIO_R 0xfffe0000 /* bit 31-17 of lregs.irqmask */
	59
	60	/* leon uart register definitions */
	61	#define LEON_OFF_UDATA 0x0
	62	#define LEON_OFF_USTAT 0x4
	63	#define LEON_OFF_UCTRL 0x8
	64	#define LEON_OFF_USCAL 0xc
	65
	66	#define LEON_UCTRL_RE 0x01
	67	#define LEON_UCTRL_TE 0x02
	68	#define LEON_UCTRL_RI 0x04
	69	#define LEON_UCTRL_TI 0x08
	70	#define LEON_UCTRL_PS 0x10
	71	#define LEON_UCTRL_PE 0x20
	72	#define LEON_UCTRL_FL 0x40
	73	#define LEON_UCTRL_LB 0x80
	74
	75	#define LEON_USTAT_DR 0x01
	76	#define LEON_USTAT_TS 0x02
	77	#define LEON_USTAT_TH 0x04
	78	#define LEON_USTAT_BR 0x08
	79	#define LEON_USTAT_OV 0x10
	80	#define LEON_USTAT_PE 0x20
	81	#define LEON_USTAT_FE 0x40
	82
	83	#define LEON_MCFG2_SRAMDIS 0x00002000
	84	#define LEON_MCFG2_SDRAMEN 0x00004000
	85	#define LEON_MCFG2_SRAMBANKSZ 0x00001e00 /* [12-9] */
	86	#define LEON_MCFG2_SRAMBANKSZ_SHIFT 9
	87	#define LEON_MCFG2_SDRAMBANKSZ 0x03800000 /* [25-23] */
	88	#define LEON_MCFG2_SDRAMBANKSZ_SHIFT 23
	89
	90	#define LEON_TCNT0_MASK 0x7fffff
	91
	92	#define LEON_USTAT_ERROR (LEON_USTAT_OV \| LEON_USTAT_PE \| LEON_USTAT_FE)
	93	/* no break yet */
	94
	95	#define ASI_LEON3_SYSCTRL 0x02
	96	#define ASI_LEON3_SYSCTRL_ICFG 0x08
	97	#define ASI_LEON3_SYSCTRL_DCFG 0x0c
	98	#define ASI_LEON3_SYSCTRL_CFG_SNOOPING (1 << 27)
	99	#define ASI_LEON3_SYSCTRL_CFG_SSIZE(c) (1 << ((c >> 20) & 0xf))
	100
	101	#ifndef __ASSEMBLY__
	102
	103	/* do a virtual address read without cache */
	104	static inline unsigned long leon_readnobuffer_reg(unsigned long paddr)
	105	{
	106	unsigned long retval;
	107	__asm__ __volatile__("lda [%1] %2, %0\n\t" :
	108	"=r"(retval) : "r"(paddr), "i"(ASI_LEON_NOCACHE));
	109	return retval;
	110	}
	111
	112	/* do a physical address bypass write, i.e. for 0x80000000 */
	113	static inline void leon_store_reg(unsigned long paddr, unsigned long value)
	114	{
	115	__asm__ __volatile__("sta %0, [%1] %2\n\t" : : "r"(value), "r"(paddr),
	116	"i"(ASI_LEON_BYPASS) : "memory");
	117	}
	118
119	/* do a physical address bypass load, i.e. for 0x80000000 */
120	static inline unsigned long leon_load_reg(unsigned long paddr)
121	{
122	unsigned long retval;
123	__asm__ __volatile__("lda [%1] %2, %0\n\t" :
124	"=r"(retval) : "r"(paddr), "i"(ASI_LEON_BYPASS));
125	return retval;
126	}
127
4309e568	128	static inline void leon_srmmu_disabletlb(void)
5213a780 KE	129	{
	130	unsigned int retval;
	131	__asm__ __volatile__("lda [%%g0] %2, %0\n\t" : "=r"(retval) : "r"(0),
	132	"i"(ASI_LEON_MMUREGS));
	133	retval \|= LEON_CNR_CTRL_TLBDIS;
	134	__asm__ __volatile__("sta %0, [%%g0] %2\n\t" : : "r"(retval), "r"(0),
	135	"i"(ASI_LEON_MMUREGS) : "memory");
	136	}
	137
4309e568	138	static inline void leon_srmmu_enabletlb(void)
5213a780 KE	139	{
	140	unsigned int retval;
	141	__asm__ __volatile__("lda [%%g0] %2, %0\n\t" : "=r"(retval) : "r"(0),
	142	"i"(ASI_LEON_MMUREGS));
	143	retval = retval & ~LEON_CNR_CTRL_TLBDIS;
	144	__asm__ __volatile__("sta %0, [%%g0] %2\n\t" : : "r"(retval), "r"(0),
	145	"i"(ASI_LEON_MMUREGS) : "memory");
	146	}
	147
	148	/* macro access for leon_load_reg() and leon_store_reg() */
	149	#define LEON3_BYPASS_LOAD_PA(x) (leon_load_reg((unsigned long)(x)))
	150	#define LEON3_BYPASS_STORE_PA(x, v) (leon_store_reg((unsigned long)(x), (unsigned long)(v)))
	151	#define LEON3_BYPASS_ANDIN_PA(x, v) LEON3_BYPASS_STORE_PA(x, LEON3_BYPASS_LOAD_PA(x) & v)
	152	#define LEON3_BYPASS_ORIN_PA(x, v) LEON3_BYPASS_STORE_PA(x, LEON3_BYPASS_LOAD_PA(x) \| v)
	153	#define LEON_BYPASS_LOAD_PA(x) leon_load_reg((unsigned long)(x))
	154	#define LEON_BYPASS_STORE_PA(x, v) leon_store_reg((unsigned long)(x), (unsigned long)(v))
	155	#define LEON_REGLOAD_PA(x) leon_load_reg((unsigned long)(x)+LEON_PREGS)
	156	#define LEON_REGSTORE_PA(x, v) leon_store_reg((unsigned long)(x)+LEON_PREGS, (unsigned long)(v))
	157	#define LEON_REGSTORE_OR_PA(x, v) LEON_REGSTORE_PA(x, LEON_REGLOAD_PA(x) \| (unsigned long)(v))
	158	#define LEON_REGSTORE_AND_PA(x, v) LEON_REGSTORE_PA(x, LEON_REGLOAD_PA(x) & (unsigned long)(v))
	159
	160	/* macro access for leon_readnobuffer_reg() */
	161	#define LEON_BYPASSCACHE_LOAD_VA(x) leon_readnobuffer_reg((unsigned long)(x))
	162
5213a780 KE	163	extern void leon_init(void);
	164	extern void leon_switch_mm(void);
	165	extern void leon_init_IRQ(void);
	166
	167	extern unsigned long last_valid_pfn;
	168
4309e568	169	static inline unsigned long sparc_leon3_get_dcachecfg(void)
5213a780 KE	170	{
	171	unsigned int retval;
	172	__asm__ __volatile__("lda [%1] %2, %0\n\t" :
	173	"=r"(retval) :
	174	"r"(ASI_LEON3_SYSCTRL_DCFG),
	175	"i"(ASI_LEON3_SYSCTRL));
	176	return retval;
	177	}
	178
	179	/* enable snooping */
4309e568	180	static inline void sparc_leon3_enable_snooping(void)
5213a780 KE	181	{
	182	__asm__ __volatile__ ("lda [%%g0] 2, %%l1\n\t"
	183	"set 0x800000, %%l2\n\t"
	184	"or %%l2, %%l1, %%l2\n\t"
	185	"sta %%l2, [%%g0] 2\n\t" : : : "l1", "l2");
	186	};
	187
4309e568 KG	188	static inline int sparc_leon3_snooping_enabled(void)
	189	{
	190	u32 cctrl;
	191	__asm__ __volatile__("lda [%%g0] 2, %0\n\t" : "=r"(cctrl));
	192	return (cctrl >> 23) & 1;
	193	};
	194
	195	static inline void sparc_leon3_disable_cache(void)
5213a780 KE	196	{
	197	__asm__ __volatile__ ("lda [%%g0] 2, %%l1\n\t"
	198	"set 0x00000f, %%l2\n\t"
	199	"andn %%l2, %%l1, %%l2\n\t"
	200	"sta %%l2, [%%g0] 2\n\t" : : : "l1", "l2");
	201	};
	202
e2305e37 DH	203	static inline unsigned long sparc_leon3_asr17(void)
	204	{
	205	u32 asr17;
	206	__asm__ __volatile__ ("rd %%asr17, %0\n\t" : "=r"(asr17));
	207	return asr17;
	208	};
	209
	210	static inline int sparc_leon3_cpuid(void)
	211	{
	212	return sparc_leon3_asr17() >> 28;
	213	}
	214
5213a780 KE	215	#endif /!__ASSEMBLY__/
	216
	217	#ifdef CONFIG_SMP
1ca0c808	218	# define LEON3_IRQ_IPI_DEFAULT 13
2cf95304	219	# define LEON3_IRQ_TICKER (leon3_ticker_irq)
5213a780 KE	220	# define LEON3_IRQ_CROSS_CALL 15
	221	#endif
	222
	223	#if defined(PAGE_SIZE_LEON_8K)
	224	#define LEON_PAGE_SIZE_LEON 1
	225	#elif defined(PAGE_SIZE_LEON_16K)
	226	#define LEON_PAGE_SIZE_LEON 2)
	227	#else
	228	#define LEON_PAGE_SIZE_LEON 0
	229	#endif
	230
	231	#if LEON_PAGE_SIZE_LEON == 0
	232	/* [ 8, 6, 6 ] + 12 */
	233	#define LEON_PGD_SH 24
	234	#define LEON_PGD_M 0xff
	235	#define LEON_PMD_SH 18
	236	#define LEON_PMD_SH_V (LEON_PGD_SH-2)
	237	#define LEON_PMD_M 0x3f
	238	#define LEON_PTE_SH 12
	239	#define LEON_PTE_M 0x3f
	240	#elif LEON_PAGE_SIZE_LEON == 1
	241	/* [ 7, 6, 6 ] + 13 */
	242	#define LEON_PGD_SH 25
	243	#define LEON_PGD_M 0x7f
	244	#define LEON_PMD_SH 19
	245	#define LEON_PMD_SH_V (LEON_PGD_SH-1)
	246	#define LEON_PMD_M 0x3f
	247	#define LEON_PTE_SH 13
	248	#define LEON_PTE_M 0x3f
	249	#elif LEON_PAGE_SIZE_LEON == 2
	250	/* [ 6, 6, 6 ] + 14 */
	251	#define LEON_PGD_SH 26
	252	#define LEON_PGD_M 0x3f
	253	#define LEON_PMD_SH 20
	254	#define LEON_PMD_SH_V (LEON_PGD_SH-0)
	255	#define LEON_PMD_M 0x3f
	256	#define LEON_PTE_SH 14
	257	#define LEON_PTE_M 0x3f
	258	#elif LEON_PAGE_SIZE_LEON == 3
	259	/* [ 4, 7, 6 ] + 15 */
	260	#define LEON_PGD_SH 28
	261	#define LEON_PGD_M 0x0f
	262	#define LEON_PMD_SH 21
	263	#define LEON_PMD_SH_V (LEON_PGD_SH-0)
	264	#define LEON_PMD_M 0x7f
	265	#define LEON_PTE_SH 15
	266	#define LEON_PTE_M 0x3f
	267	#else
	268	#error cannot determine LEON_PAGE_SIZE_LEON
	269	#endif
	270
	271	#define PAGE_MIN_SHIFT (12)
	272	#define PAGE_MIN_SIZE (1UL << PAGE_MIN_SHIFT)
	273
	274	#define LEON3_XCCR_SETS_MASK 0x07000000UL
	275	#define LEON3_XCCR_SSIZE_MASK 0x00f00000UL
	276
	277	#define LEON2_CCR_DSETS_MASK 0x03000000UL
	278	#define LEON2_CFG_SSIZE_MASK 0x00007000UL
	279
	280	#ifndef __ASSEMBLY__
	281	extern unsigned long srmmu_swprobe(unsigned long vaddr, unsigned long *paddr);
	282	extern void leon_flush_icache_all(void);
	283	extern void leon_flush_dcache_all(void);
284	extern void leon_flush_cache_all(void);
285	extern void leon_flush_tlb_all(void);
286	extern int leon_flush_during_switch;
287	extern int leon_flush_needed(void);
288
289	struct vm_area_struct;
290	extern void leon_flush_icache_all(void);
291	extern void leon_flush_dcache_all(void);
292	extern void leon_flush_pcache_all(struct vm_area_struct *vma, unsigned long page);
293	extern void leon_flush_cache_all(void);
294	extern void leon_flush_tlb_all(void);
295	extern int leon_flush_during_switch;
296	extern int leon_flush_needed(void);
297	extern void leon_flush_pcache_all(struct vm_area_struct *vma, unsigned long page);
298
299	/* struct that hold LEON3 cache configuration registers */
300	struct leon3_cacheregs {
301	unsigned long ccr; /* 0x00 - Cache Control Register */
302	unsigned long iccr; /* 0x08 - Instruction Cache Configuration Register */
303	unsigned long dccr; /* 0x0c - Data Cache Configuration Register */
304	};
305
306	/* struct that hold LEON2 cache configuration register
307	* & configuration register
308	*/
309	struct leon2_cacheregs {
310	unsigned long ccr, cfg;
311	};
312
313	#ifdef __KERNEL__
314
315	#include <linux/interrupt.h>
316
317	struct device_node;
f0a2bc7e	318	struct task_struct;
4c6773c3 DH	319	extern unsigned int leon_build_device_irq(unsigned int real_irq,
	320	irq_flow_handler_t flow_handler,
	321	const char *name, int do_ack);
5d07b786 DH	322	extern void leon_update_virq_handling(unsigned int virq,
	323	irq_flow_handler_t flow_handler,
	324	const char *name, int do_ack);
5213a780 KE	325	extern void leon_clear_clock_irq(void);
	326	extern void leon_load_profile_irq(int cpu, unsigned int limit);
	327	extern void leon_init_timers(irq_handler_t counter_fn);
	328	extern void leon_clear_clock_irq(void);
	329	extern void leon_load_profile_irq(int cpu, unsigned int limit);
	330	extern void leon_trans_init(struct device_node *dp);
	331	extern void leon_node_init(struct device_node dp, struct device_node **nextp);
	332	extern void leon_init_IRQ(void);
	333	extern void leon_init(void);
	334	extern unsigned long srmmu_swprobe(unsigned long vaddr, unsigned long *paddr);
	335	extern void init_leon(void);
	336	extern void poke_leonsparc(void);
	337	extern void leon3_getCacheRegs(struct leon3_cacheregs *regs);
	338	extern int leon_flush_needed(void);
	339	extern void leon_switch_mm(void);
	340	extern int srmmu_swprobe_trace;
2cf95304	341	extern int leon3_ticker_irq;
5213a780	342
8401707f KE	343	#ifdef CONFIG_SMP
	344	extern int leon_smp_nrcpus(void);
	345	extern void leon_clear_profile_irq(int cpu);
	346	extern void leon_smp_done(void);
	347	extern void leon_boot_cpus(void);
f0a2bc7e	348	extern int leon_boot_one_cpu(int i, struct task_struct *);
8401707f	349	void leon_init_smp(void);
8401707f KE	350	extern void cpu_idle(void);
	351	extern void init_IRQ(void);
	352	extern void cpu_panic(void);
	353	extern int __leon_processor_id(void);
	354	void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu);
2cf95304	355	extern irqreturn_t leon_percpu_timer_interrupt(int irq, void *unused);
8401707f	356
2cf95304	357	extern unsigned int real_irq_entry[];
1ca0c808	358	extern unsigned int smpleon_ipi[];
8401707f	359	extern unsigned int patchme_maybe_smp_msg[];
8401707f KE	360	extern unsigned int t_nmi[], linux_trap_ipi15_leon[];
8401707f KE	361	extern unsigned int linux_trap_ipi15_sun4m[];
1ca0c808	362	extern int leon_ipi_irq;
8401707f KE	363
	364	#endif /* CONFIG_SMP */
	365
5213a780 KE	366	#endif /* __KERNEL__ */
	367
	368	#endif /* __ASSEMBLY__ */
	369
	370	/* macros used in leon_mm.c */
	371	#define PFN(x) ((x) >> PAGE_SHIFT)
	372	#define _pfn_valid(pfn) ((pfn < last_valid_pfn) && (pfn >= PFN(phys_base)))
	373	#define _SRMMU_PTE_PMASK_LEON 0xffffffff
	374
	375	#else /* defined(CONFIG_SPARC_LEON) */
	376
	377	/* nop definitions for !LEON case */
	378	#define leon_init() do {} while (0)
	379	#define leon_switch_mm() do {} while (0)
	380	#define leon_init_IRQ() do {} while (0)
	381	#define init_leon() do {} while (0)
8401707f KE	382	#define leon_smp_done() do {} while (0)
8401707f KE	383	#define leon_boot_cpus() do {} while (0)
f0a2bc7e	384	#define leon_boot_one_cpu(i, t) 1
8401707f	385	#define leon_init_smp() do {} while (0)
5213a780 KE	386
	387	#endif /* !defined(CONFIG_SPARC_LEON) */
	388
	389	#endif