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) */