[linux.git] / include / asm-sparc / obio.h

/* $Id: obio.h,v 1.4 1998/03/09 14:04:55 jj Exp $
 * obio.h:  Some useful locations in 0xFXXXXXXXX PA obio space on sun4d.
 *
 * Copyright (C) 1997 Jakub Jelinek <[email protected]>
 */

#ifndef _SPARC_OBIO_H
#define _SPARC_OBIO_H

#include <asm/asi.h>

/* This weird monster likes to use the very upper parts of
   36bit PA for these things :) */
   
/* CSR space (for each XDBUS)
 *  ------------------------------------------------------------------------
 *  |   0xFE  |   DEVID    |                | XDBUS ID |                   |
 *  ------------------------------------------------------------------------
 *  35      28 27        20 19            10 9        8 7                 0
 */
   
#define CSR_BASE_ADDR		0xe0000000
#define CSR_CPU_SHIFT		(32 - 4 - 5)
#define CSR_XDBUS_SHIFT		8

#define CSR_BASE(cpu) (((CSR_BASE_ADDR >> CSR_CPU_SHIFT) + cpu) << CSR_CPU_SHIFT)

/* ECSR space (not for each XDBUS)
 *  ------------------------------------------------------------------------
 *  |   0xF  | DEVID[7:1] |                			           |
 *  ------------------------------------------------------------------------
 *  35     32 31        25 24                 				  0
 */
   
#define ECSR_BASE_ADDR		0x00000000
#define ECSR_CPU_SHIFT		(32 - 5)
#define ECSR_DEV_SHIFT		(32 - 8)

#define ECSR_BASE(cpu) ((cpu) << ECSR_CPU_SHIFT)
#define ECSR_DEV_BASE(devid) ((devid) << ECSR_DEV_SHIFT) 

/* Bus Watcher */
#define BW_LOCAL_BASE		0xfff00000

#define BW_CID			0x00000000
#define BW_DBUS_CTRL		0x00000008
#define BW_DBUS_DATA		0x00000010
#define BW_CTRL			0x00001000
#define BW_INTR_TABLE		0x00001040
#define BW_INTR_TABLE_CLEAR	0x00001080
#define BW_PRESCALER		0x000010c0
#define BW_PTIMER_LIMIT		0x00002000
#define BW_PTIMER_COUNTER2	0x00002004
#define BW_PTIMER_NDLIMIT	0x00002008
#define BW_PTIMER_CTRL		0x0000200c
#define BW_PTIMER_COUNTER	0x00002010
#define BW_TIMER_LIMIT		0x00003000
#define BW_TIMER_COUNTER2	0x00003004
#define BW_TIMER_NDLIMIT	0x00003008
#define BW_TIMER_CTRL		0x0000300c
#define BW_TIMER_COUNTER	0x00003010

/* BW Control */
#define BW_CTRL_USER_TIMER	0x00000004	/* Is User Timer Free run enabled */

/* Boot Bus */
#define BB_LOCAL_BASE		0xf0000000

#define BB_STAT1		0x00100000
#define BB_STAT2		0x00120000
#define BB_STAT3		0x00140000
#define BB_LEDS			0x002e0000

/* Bits in BB_STAT2 */
#define BB_STAT2_AC_INTR	0x04	/* Aiee! 5ms and power is gone... */
#define BB_STAT2_TMP_INTR	0x10	/* My Penguins are burning. Are you able to smell it? */
#define BB_STAT2_FAN_INTR	0x20	/* My fan refuses to work */
#define BB_STAT2_PWR_INTR	0x40	/* On SC2000, one of the two ACs died. Ok, we go on... */
#define BB_STAT2_MASK		(BB_STAT2_AC_INTR|BB_STAT2_TMP_INTR|BB_STAT2_FAN_INTR|BB_STAT2_PWR_INTR)

/* Cache Controller */
#define CC_BASE		0x1F00000
#define CC_DATSTREAM	0x1F00000  /* Data stream register */
#define CC_DATSIZE	0x1F0003F  /* Size */
#define CC_SRCSTREAM	0x1F00100  /* Source stream register */
#define CC_DESSTREAM	0x1F00200  /* Destination stream register */
#define CC_RMCOUNT	0x1F00300  /* Count of references and misses */
#define CC_IPEN		0x1F00406  /* Pending Interrupts */
#define CC_IMSK		0x1F00506  /* Interrupt Mask */
#define CC_ICLR		0x1F00606  /* Clear pending Interrupts */
#define CC_IGEN		0x1F00704  /* Generate Interrupt register */
#define CC_STEST	0x1F00804  /* Internal self-test */
#define CC_CREG		0x1F00A04  /* Control register */
#define CC_SREG		0x1F00B00  /* Status register */
#define CC_RREG		0x1F00C04  /* Reset register */
#define CC_EREG		0x1F00E00  /* Error code register */
#define CC_CID		0x1F00F04  /* Component ID */

#ifndef __ASSEMBLY__

static inline int bw_get_intr_mask(int sbus_level)
{
	int mask;
	
	__asm__ __volatile__ ("lduha [%1] %2, %0" :
			      "=r" (mask) :
			      "r" (BW_LOCAL_BASE + BW_INTR_TABLE + (sbus_level << 3)),
			      "i" (ASI_M_CTL));
	return mask;
}

static inline void bw_clear_intr_mask(int sbus_level, int mask)
{
	__asm__ __volatile__ ("stha %0, [%1] %2" : :
			      "r" (mask),
			      "r" (BW_LOCAL_BASE + BW_INTR_TABLE_CLEAR + (sbus_level << 3)),
			      "i" (ASI_M_CTL));
}

static inline unsigned bw_get_prof_limit(int cpu)
{
	unsigned limit;
	
	__asm__ __volatile__ ("lda [%1] %2, %0" :
			      "=r" (limit) :
			      "r" (CSR_BASE(cpu) + BW_PTIMER_LIMIT),
			      "i" (ASI_M_CTL));
	return limit;
}

static inline void bw_set_prof_limit(int cpu, unsigned limit)
{
	__asm__ __volatile__ ("sta %0, [%1] %2" : :
			      "r" (limit),
			      "r" (CSR_BASE(cpu) + BW_PTIMER_LIMIT),
			      "i" (ASI_M_CTL));
}

static inline unsigned bw_get_ctrl(int cpu)
{
	unsigned ctrl;
	
	__asm__ __volatile__ ("lda [%1] %2, %0" :
			      "=r" (ctrl) :
			      "r" (CSR_BASE(cpu) + BW_CTRL),
			      "i" (ASI_M_CTL));
	return ctrl;
}

static inline void bw_set_ctrl(int cpu, unsigned ctrl)
{
	__asm__ __volatile__ ("sta %0, [%1] %2" : :
			      "r" (ctrl),
			      "r" (CSR_BASE(cpu) + BW_CTRL),
			      "i" (ASI_M_CTL));
}

extern unsigned char cpu_leds[32];

static inline void show_leds(int cpuid)
{
	cpuid &= 0x1e;
	__asm__ __volatile__ ("stba %0, [%1] %2" : :
			      "r" ((cpu_leds[cpuid] << 4) | cpu_leds[cpuid+1]),
			      "r" (ECSR_BASE(cpuid) | BB_LEDS),
			      "i" (ASI_M_CTL));
}

static inline unsigned cc_get_ipen(void)
{
	unsigned pending;
	
	__asm__ __volatile__ ("lduha [%1] %2, %0" :
			      "=r" (pending) :
			      "r" (CC_IPEN),
			      "i" (ASI_M_MXCC));
	return pending;
}

static inline void cc_set_iclr(unsigned clear)
{
	__asm__ __volatile__ ("stha %0, [%1] %2" : :
			      "r" (clear),
			      "r" (CC_ICLR),
			      "i" (ASI_M_MXCC));
}

static inline unsigned cc_get_imsk(void)
{
	unsigned mask;
	
	__asm__ __volatile__ ("lduha [%1] %2, %0" :
			      "=r" (mask) :
			      "r" (CC_IMSK),
			      "i" (ASI_M_MXCC));
	return mask;
}

static inline void cc_set_imsk(unsigned mask)
{
	__asm__ __volatile__ ("stha %0, [%1] %2" : :
			      "r" (mask),
			      "r" (CC_IMSK),
			      "i" (ASI_M_MXCC));
}

static inline unsigned cc_get_imsk_other(int cpuid)
{
	unsigned mask;
	
	__asm__ __volatile__ ("lduha [%1] %2, %0" :
			      "=r" (mask) :
			      "r" (ECSR_BASE(cpuid) | CC_IMSK),
			      "i" (ASI_M_CTL));
	return mask;
}

static inline void cc_set_imsk_other(int cpuid, unsigned mask)
{
	__asm__ __volatile__ ("stha %0, [%1] %2" : :
			      "r" (mask),
			      "r" (ECSR_BASE(cpuid) | CC_IMSK),
			      "i" (ASI_M_CTL));
}

static inline void cc_set_igen(unsigned gen)
{
	__asm__ __volatile__ ("sta %0, [%1] %2" : :
			      "r" (gen),
			      "r" (CC_IGEN),
			      "i" (ASI_M_MXCC));
}

/* +-------+-------------+-----------+------------------------------------+
 * | bcast |  devid      |   sid     |              levels mask           |
 * +-------+-------------+-----------+------------------------------------+
 *  31      30         23 22       15 14                                 0
 */
#define IGEN_MESSAGE(bcast, devid, sid, levels) \
	(((bcast) << 31) | ((devid) << 23) | ((sid) << 15) | (levels))
            
static inline void sun4d_send_ipi(int cpu, int level)
{
	cc_set_igen(IGEN_MESSAGE(0, cpu << 3, 6 + ((level >> 1) & 7), 1 << (level - 1)));
}

#endif /* !__ASSEMBLY__ */

#endif /* !(_SPARC_OBIO_H) */
Commit	Line	Data
1da177e4 LT	1	/* $Id: obio.h,v 1.4 1998/03/09 14:04:55 jj Exp $
	2	* obio.h: Some useful locations in 0xFXXXXXXXX PA obio space on sun4d.
	3	*
	4	* Copyright (C) 1997 Jakub Jelinek <[email protected]>
	5	*/
	6
	7	#ifndef _SPARC_OBIO_H
	8	#define _SPARC_OBIO_H
	9
	10	#include <asm/asi.h>
	11
	12	/* This weird monster likes to use the very upper parts of
	13	36bit PA for these things :) */
	14
	15	/* CSR space (for each XDBUS)
	16	* ------------------------------------------------------------------------
	17	* \| 0xFE \| DEVID \| \| XDBUS ID \| \|
	18	* ------------------------------------------------------------------------
	19	* 35 28 27 20 19 10 9 8 7 0
	20	*/
	21
	22	#define CSR_BASE_ADDR 0xe0000000
	23	#define CSR_CPU_SHIFT (32 - 4 - 5)
	24	#define CSR_XDBUS_SHIFT 8
	25
	26	#define CSR_BASE(cpu) (((CSR_BASE_ADDR >> CSR_CPU_SHIFT) + cpu) << CSR_CPU_SHIFT)
	27
	28	/* ECSR space (not for each XDBUS)
	29	* ------------------------------------------------------------------------
	30	* \| 0xF \| DEVID[7:1] \| \|
	31	* ------------------------------------------------------------------------
	32	* 35 32 31 25 24 0
	33	*/
	34
	35	#define ECSR_BASE_ADDR 0x00000000
	36	#define ECSR_CPU_SHIFT (32 - 5)
	37	#define ECSR_DEV_SHIFT (32 - 8)
	38
	39	#define ECSR_BASE(cpu) ((cpu) << ECSR_CPU_SHIFT)
	40	#define ECSR_DEV_BASE(devid) ((devid) << ECSR_DEV_SHIFT)
	41
	42	/* Bus Watcher */
	43	#define BW_LOCAL_BASE 0xfff00000
	44
	45	#define BW_CID 0x00000000
	46	#define BW_DBUS_CTRL 0x00000008
	47	#define BW_DBUS_DATA 0x00000010
	48	#define BW_CTRL 0x00001000
	49	#define BW_INTR_TABLE 0x00001040
	50	#define BW_INTR_TABLE_CLEAR 0x00001080
	51	#define BW_PRESCALER 0x000010c0
	52	#define BW_PTIMER_LIMIT 0x00002000
	53	#define BW_PTIMER_COUNTER2 0x00002004
	54	#define BW_PTIMER_NDLIMIT 0x00002008
	55	#define BW_PTIMER_CTRL 0x0000200c
	56	#define BW_PTIMER_COUNTER 0x00002010
	57	#define BW_TIMER_LIMIT 0x00003000
	58	#define BW_TIMER_COUNTER2 0x00003004
	59	#define BW_TIMER_NDLIMIT 0x00003008
	60	#define BW_TIMER_CTRL 0x0000300c
	61	#define BW_TIMER_COUNTER 0x00003010
	62
	63	/* BW Control */
	64	#define BW_CTRL_USER_TIMER 0x00000004 /* Is User Timer Free run enabled */
65
66	/* Boot Bus */
67	#define BB_LOCAL_BASE 0xf0000000
68
69	#define BB_STAT1 0x00100000
70	#define BB_STAT2 0x00120000
71	#define BB_STAT3 0x00140000
72	#define BB_LEDS 0x002e0000
73
74	/* Bits in BB_STAT2 */
75	#define BB_STAT2_AC_INTR 0x04 /* Aiee! 5ms and power is gone... */
76	#define BB_STAT2_TMP_INTR 0x10 /* My Penguins are burning. Are you able to smell it? */
77	#define BB_STAT2_FAN_INTR 0x20 /* My fan refuses to work */
78	#define BB_STAT2_PWR_INTR 0x40 /* On SC2000, one of the two ACs died. Ok, we go on... */
79	#define BB_STAT2_MASK (BB_STAT2_AC_INTR\|BB_STAT2_TMP_INTR\|BB_STAT2_FAN_INTR\|BB_STAT2_PWR_INTR)
80
81	/* Cache Controller */
82	#define CC_BASE 0x1F00000
83	#define CC_DATSTREAM 0x1F00000 /* Data stream register */
84	#define CC_DATSIZE 0x1F0003F /* Size */
85	#define CC_SRCSTREAM 0x1F00100 /* Source stream register */
86	#define CC_DESSTREAM 0x1F00200 /* Destination stream register */
87	#define CC_RMCOUNT 0x1F00300 /* Count of references and misses */
88	#define CC_IPEN 0x1F00406 /* Pending Interrupts */
89	#define CC_IMSK 0x1F00506 /* Interrupt Mask */
90	#define CC_ICLR 0x1F00606 /* Clear pending Interrupts */
91	#define CC_IGEN 0x1F00704 /* Generate Interrupt register */
92	#define CC_STEST 0x1F00804 /* Internal self-test */
93	#define CC_CREG 0x1F00A04 /* Control register */
94	#define CC_SREG 0x1F00B00 /* Status register */
95	#define CC_RREG 0x1F00C04 /* Reset register */
96	#define CC_EREG 0x1F00E00 /* Error code register */
97	#define CC_CID 0x1F00F04 /* Component ID */
98
99	#ifndef __ASSEMBLY__
100
3115624e	101	static inline int bw_get_intr_mask(int sbus_level)
1da177e4 LT	102	{
	103	int mask;
	104
	105	__asm__ __volatile__ ("lduha [%1] %2, %0" :
	106	"=r" (mask) :
	107	"r" (BW_LOCAL_BASE + BW_INTR_TABLE + (sbus_level << 3)),
	108	"i" (ASI_M_CTL));
	109	return mask;
	110	}
	111
3115624e	112	static inline void bw_clear_intr_mask(int sbus_level, int mask)
1da177e4 LT	113	{
	114	__asm__ __volatile__ ("stha %0, [%1] %2" : :
	115	"r" (mask),
	116	"r" (BW_LOCAL_BASE + BW_INTR_TABLE_CLEAR + (sbus_level << 3)),
	117	"i" (ASI_M_CTL));
	118	}
	119
3115624e	120	static inline unsigned bw_get_prof_limit(int cpu)
1da177e4 LT	121	{
	122	unsigned limit;
	123
	124	__asm__ __volatile__ ("lda [%1] %2, %0" :
	125	"=r" (limit) :
	126	"r" (CSR_BASE(cpu) + BW_PTIMER_LIMIT),
	127	"i" (ASI_M_CTL));
	128	return limit;
	129	}
	130
3115624e	131	static inline void bw_set_prof_limit(int cpu, unsigned limit)
1da177e4 LT	132	{
	133	__asm__ __volatile__ ("sta %0, [%1] %2" : :
	134	"r" (limit),
	135	"r" (CSR_BASE(cpu) + BW_PTIMER_LIMIT),
	136	"i" (ASI_M_CTL));
	137	}
	138
3115624e	139	static inline unsigned bw_get_ctrl(int cpu)
1da177e4 LT	140	{
	141	unsigned ctrl;
	142
	143	__asm__ __volatile__ ("lda [%1] %2, %0" :
	144	"=r" (ctrl) :
	145	"r" (CSR_BASE(cpu) + BW_CTRL),
	146	"i" (ASI_M_CTL));
	147	return ctrl;
	148	}
	149
3115624e	150	static inline void bw_set_ctrl(int cpu, unsigned ctrl)
1da177e4 LT	151	{
	152	__asm__ __volatile__ ("sta %0, [%1] %2" : :
	153	"r" (ctrl),
	154	"r" (CSR_BASE(cpu) + BW_CTRL),
	155	"i" (ASI_M_CTL));
	156	}
	157
	158	extern unsigned char cpu_leds[32];
	159
3115624e	160	static inline void show_leds(int cpuid)
1da177e4 LT	161	{
	162	cpuid &= 0x1e;
	163	__asm__ __volatile__ ("stba %0, [%1] %2" : :
	164	"r" ((cpu_leds[cpuid] << 4) \| cpu_leds[cpuid+1]),
	165	"r" (ECSR_BASE(cpuid) \| BB_LEDS),
	166	"i" (ASI_M_CTL));
	167	}
	168
3115624e	169	static inline unsigned cc_get_ipen(void)
1da177e4 LT	170	{
	171	unsigned pending;
	172
	173	__asm__ __volatile__ ("lduha [%1] %2, %0" :
	174	"=r" (pending) :
	175	"r" (CC_IPEN),
	176	"i" (ASI_M_MXCC));
	177	return pending;
	178	}
	179
3115624e	180	static inline void cc_set_iclr(unsigned clear)
1da177e4 LT	181	{
	182	__asm__ __volatile__ ("stha %0, [%1] %2" : :
	183	"r" (clear),
	184	"r" (CC_ICLR),
	185	"i" (ASI_M_MXCC));
	186	}
	187
3115624e	188	static inline unsigned cc_get_imsk(void)
1da177e4 LT	189	{
	190	unsigned mask;
	191
	192	__asm__ __volatile__ ("lduha [%1] %2, %0" :
	193	"=r" (mask) :
	194	"r" (CC_IMSK),
	195	"i" (ASI_M_MXCC));
	196	return mask;
	197	}
	198
3115624e	199	static inline void cc_set_imsk(unsigned mask)
1da177e4 LT	200	{
	201	__asm__ __volatile__ ("stha %0, [%1] %2" : :
	202	"r" (mask),
	203	"r" (CC_IMSK),
	204	"i" (ASI_M_MXCC));
	205	}
	206
3115624e	207	static inline unsigned cc_get_imsk_other(int cpuid)
1da177e4 LT	208	{
	209	unsigned mask;
	210
	211	__asm__ __volatile__ ("lduha [%1] %2, %0" :
	212	"=r" (mask) :
	213	"r" (ECSR_BASE(cpuid) \| CC_IMSK),
	214	"i" (ASI_M_CTL));
	215	return mask;
	216	}
	217
3115624e	218	static inline void cc_set_imsk_other(int cpuid, unsigned mask)
1da177e4 LT	219	{
	220	__asm__ __volatile__ ("stha %0, [%1] %2" : :
	221	"r" (mask),
	222	"r" (ECSR_BASE(cpuid) \| CC_IMSK),
	223	"i" (ASI_M_CTL));
	224	}
	225
3115624e	226	static inline void cc_set_igen(unsigned gen)
1da177e4 LT	227	{
	228	__asm__ __volatile__ ("sta %0, [%1] %2" : :
	229	"r" (gen),
	230	"r" (CC_IGEN),
	231	"i" (ASI_M_MXCC));
	232	}
	233
	234	/* +-------+-------------+-----------+------------------------------------+
	235	* \| bcast \| devid \| sid \| levels mask \|
	236	* +-------+-------------+-----------+------------------------------------+
	237	* 31 30 23 22 15 14 0
	238	*/
	239	#define IGEN_MESSAGE(bcast, devid, sid, levels) \
	240	(((bcast) << 31) \| ((devid) << 23) \| ((sid) << 15) \| (levels))
	241
3115624e	242	static inline void sun4d_send_ipi(int cpu, int level)
1da177e4 LT	243	{
	244	cc_set_igen(IGEN_MESSAGE(0, cpu << 3, 6 + ((level >> 1) & 7), 1 << (level - 1)));
	245	}
	246
	247	#endif /* !__ASSEMBLY__ */
	248
	249	#endif /* !(_SPARC_OBIO_H) */