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Diffstat (limited to 'arch/sparc/include/asm/obio.h')
| -rw-r--r-- | arch/sparc/include/asm/obio.h | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/obio.h b/arch/sparc/include/asm/obio.h new file mode 100644 index 000000000000..1a7544ceb574 --- /dev/null +++ b/arch/sparc/include/asm/obio.h @@ -0,0 +1,249 @@ +/* + * obio.h: Some useful locations in 0xFXXXXXXXX PA obio space on sun4d. + * + * Copyright (C) 1997 Jakub Jelinek <jj@sunsite.mff.cuni.cz> + */ + +#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) */ |