11 files changed, 151 insertions, 0 deletions

diff --git a/arch/sparc/kernel/irq.c b/arch/sparc/kernel/irq.c
index f257a67bcf93..5e9af3073acf 100644
--- a/arch/sparc/kernel/irq.c
+++ b/arch/sparc/kernel/irq.c
@@ -47,6 +47,8 @@
 #include <asm/cacheflush.h>
 #include <asm/irq_regs.h>
 
+#include "irq.h"
+
 #ifdef CONFIG_SMP
 #define SMP_NOP2 "nop; nop;\n\t"
 #define SMP_NOP3 "nop; nop; nop;\n\t"
diff --git a/arch/sparc/kernel/irq.h b/arch/sparc/kernel/irq.h
new file mode 100644
index 000000000000..8254a86d97d0
--- /dev/null
+++ b/arch/sparc/kernel/irq.h
@@ -0,0 +1,48 @@
+#include <asm/btfixup.h>
+
+BTFIXUPDEF_CALL(void, disable_pil_irq, unsigned int)
+BTFIXUPDEF_CALL(void, enable_pil_irq, unsigned int)
+BTFIXUPDEF_CALL(void, clear_clock_irq, void)
+BTFIXUPDEF_CALL(void, clear_profile_irq, int)
+BTFIXUPDEF_CALL(void, load_profile_irq, int, unsigned int)
+
+static inline void disable_pil_irq(unsigned int irq)
+{
+        BTFIXUP_CALL(disable_pil_irq)(irq);
+}
+
+static inline void enable_pil_irq(unsigned int irq)
+{
+        BTFIXUP_CALL(enable_pil_irq)(irq);
+}
+
+static inline void clear_clock_irq(void)
+{
+        BTFIXUP_CALL(clear_clock_irq)();
+}
+
+static inline void clear_profile_irq(int irq)
+{
+        BTFIXUP_CALL(clear_profile_irq)(irq);
+}
+
+static inline void load_profile_irq(int cpu, int limit)
+{
+        BTFIXUP_CALL(load_profile_irq)(cpu, limit);
+}
+
+extern void (*sparc_init_timers)(irq_handler_t lvl10_irq);
+
+extern void claim_ticker14(irq_handler_t irq_handler,
+                           int irq,
+                           unsigned int timeout);
+
+#ifdef CONFIG_SMP
+BTFIXUPDEF_CALL(void, set_cpu_int, int, int)
+BTFIXUPDEF_CALL(void, clear_cpu_int, int, int)
+BTFIXUPDEF_CALL(void, set_irq_udt, int)
+
+#define set_cpu_int(cpu,level) BTFIXUP_CALL(set_cpu_int)(cpu,level)
+#define clear_cpu_int(cpu,level) BTFIXUP_CALL(clear_cpu_int)(cpu,level)
+#define set_irq_udt(cpu) BTFIXUP_CALL(set_irq_udt)(cpu)
+#endif
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index 791771196905..f2eae457fc9a 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -36,6 +36,7 @@
 #include <asm/uaccess.h>
 #include <asm/irq_regs.h>
 
+#include "irq.h"
 
 /*
  * I studied different documents and many live PROMs both from 2.30
diff --git a/arch/sparc/kernel/smp.c b/arch/sparc/kernel/smp.c
index 4fea3ac7bff0..6724ab90f82b 100644
--- a/arch/sparc/kernel/smp.c
+++ b/arch/sparc/kernel/smp.c
@@ -33,6 +33,8 @@
 #include <asm/tlbflush.h>
 #include <asm/cpudata.h>
 
+#include "irq.h"
+
 int smp_num_cpus = 1;
 volatile unsigned long cpu_callin_map[NR_CPUS] __initdata = {0,};
 unsigned char boot_cpu_id = 0;
diff --git a/arch/sparc/kernel/sun4c_irq.c b/arch/sparc/kernel/sun4c_irq.c
index 009e891a4329..c6ac9fc52563 100644
--- a/arch/sparc/kernel/sun4c_irq.c
+++ b/arch/sparc/kernel/sun4c_irq.c
@@ -18,6 +18,7 @@
 #include <linux/interrupt.h>
 #include <linux/slab.h>
 #include <linux/init.h>
+#include "irq.h"
 
 #include <asm/ptrace.h>
 #include <asm/processor.h>
@@ -40,6 +41,20 @@ static struct resource sun4c_timer_eb = { "sun4c_timer" };
 static struct resource sun4c_intr_eb = { "sun4c_intr" };
 #endif
 
+/*
+ * Bit field defines for the interrupt registers on various
+ * Sparc machines.
+ */
+
+/* The sun4c interrupt register. */
+#define SUN4C_INT_ENABLE  0x01     /* Allow interrupts. */
+#define SUN4C_INT_E14     0x80     /* Enable level 14 IRQ. */
+#define SUN4C_INT_E10     0x20     /* Enable level 10 IRQ. */
+#define SUN4C_INT_E8      0x10     /* Enable level 8 IRQ. */
+#define SUN4C_INT_E6      0x08     /* Enable level 6 IRQ. */
+#define SUN4C_INT_E4      0x04     /* Enable level 4 IRQ. */
+#define SUN4C_INT_E1      0x02     /* Enable level 1 IRQ. */
+
 /* Pointer to the interrupt enable byte
  *
  * Dave Redman (djhr@tadpole.co.uk)
diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c
index 396797e20c39..7a09186a432e 100644
--- a/arch/sparc/kernel/sun4d_irq.c
+++ b/arch/sparc/kernel/sun4d_irq.c
@@ -39,6 +39,8 @@
 #include <asm/cacheflush.h>
 #include <asm/irq_regs.h>
 
+#include "irq.h"
+
 /* If you trust current SCSI layer to handle different SCSI IRQs, enable this. I don't trust it... -jj */
 /* #define DISTRIBUTE_IRQS */
 
diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index 098c94f1a322..89a6de95070c 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -36,6 +36,7 @@
 #include <asm/cacheflush.h>
 #include <asm/cpudata.h>
 
+#include "irq.h"
 #define IRQ_CROSS_CALL          15
 
 extern ctxd_t *srmmu_ctx_table_phys;
diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c
index 91a803ea88be..b92d6d2d5b04 100644
--- a/arch/sparc/kernel/sun4m_irq.c
+++ b/arch/sparc/kernel/sun4m_irq.c
@@ -38,11 +38,85 @@
 #include <asm/sbus.h>
 #include <asm/cacheflush.h>
 
+#include "irq.h"
+
+/* On the sun4m, just like the timers, we have both per-cpu and master
+ * interrupt registers.
+ */
+
+/* These registers are used for sending/receiving irqs from/to
+ * different cpu's.
+ */
+struct sun4m_intreg_percpu {
+        unsigned int tbt;        /* Interrupts still pending for this cpu. */
+
+        /* These next two registers are WRITE-ONLY and are only
+         * "on bit" sensitive, "off bits" written have NO affect.
+         */
+        unsigned int clear;  /* Clear this cpus irqs here. */
+        unsigned int set;    /* Set this cpus irqs here. */
+        unsigned char space[PAGE_SIZE - 12];
+};
+
+/*
+ * djhr
+ * Actually the clear and set fields in this struct are misleading..
+ * according to the SLAVIO manual (and the same applies for the SEC)
+ * the clear field clears bits in the mask which will ENABLE that IRQ
+ * the set field sets bits in the mask to DISABLE the IRQ.
+ *
+ * Also the undirected_xx address in the SLAVIO is defined as
+ * RESERVED and write only..
+ *
+ * DAVEM_NOTE: The SLAVIO only specifies behavior on uniprocessor
+ *             sun4m machines, for MP the layout makes more sense.
+ */
+struct sun4m_intregs {
+        struct sun4m_intreg_percpu cpu_intregs[SUN4M_NCPUS];
+        unsigned int tbt;                /* IRQ's that are still pending. */
+        unsigned int irqs;               /* Master IRQ bits. */
+
+        /* Again, like the above, two these registers are WRITE-ONLY. */
+        unsigned int clear;              /* Clear master IRQ's by setting bits here. */
+        unsigned int set;                /* Set master IRQ's by setting bits here. */
+
+        /* This register is both READ and WRITE. */
+        unsigned int undirected_target;  /* Which cpu gets undirected irqs. */
+};
+
 static unsigned long dummy;
 
 struct sun4m_intregs *sun4m_interrupts;
 unsigned long *irq_rcvreg = &dummy;
 
+/* Dave Redman (djhr@tadpole.co.uk)
+ * The sun4m interrupt registers.
+ */
+#define SUN4M_INT_ENABLE        0x80000000
+#define SUN4M_INT_E14           0x00000080
+#define SUN4M_INT_E10           0x00080000
+
+#define SUN4M_HARD_INT(x)       (0x000000001 << (x))
+#define SUN4M_SOFT_INT(x)       (0x000010000 << (x))
+
+#define SUN4M_INT_MASKALL       0x80000000        /* mask all interrupts */
+#define SUN4M_INT_MODULE_ERR    0x40000000        /* module error */
+#define SUN4M_INT_M2S_WRITE     0x20000000        /* write buffer error */
+#define SUN4M_INT_ECC           0x10000000        /* ecc memory error */
+#define SUN4M_INT_FLOPPY        0x00400000        /* floppy disk */
+#define SUN4M_INT_MODULE        0x00200000        /* module interrupt */
+#define SUN4M_INT_VIDEO         0x00100000        /* onboard video */
+#define SUN4M_INT_REALTIME      0x00080000        /* system timer */
+#define SUN4M_INT_SCSI          0x00040000        /* onboard scsi */
+#define SUN4M_INT_AUDIO         0x00020000        /* audio/isdn */
+#define SUN4M_INT_ETHERNET      0x00010000        /* onboard ethernet */
+#define SUN4M_INT_SERIAL        0x00008000        /* serial ports */
+#define SUN4M_INT_KBDMS         0x00004000        /* keyboard/mouse */
+#define SUN4M_INT_SBUSBITS      0x00003F80        /* sbus int bits */
+
+#define SUN4M_INT_SBUS(x)       (1 << (x+7))
+#define SUN4M_INT_VME(x)        (1 << (x))
+
 /* These tables only apply for interrupts greater than 15..
  * 
  * any intr value below 0x10 is considered to be a soft-int
diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index 63ed19bfd028..730eb5796f8e 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -31,6 +31,8 @@
 #include <asm/oplib.h>
 #include <asm/cpudata.h>
 
+#include "irq.h"
+
 #define IRQ_RESCHEDULE          13
 #define IRQ_STOP_CPU            14
 #define IRQ_CROSS_CALL          15
diff --git a/arch/sparc/kernel/tick14.c b/arch/sparc/kernel/tick14.c
index f1a7bd19e04f..a55f0463b929 100644
--- a/arch/sparc/kernel/tick14.c
+++ b/arch/sparc/kernel/tick14.c
@@ -25,6 +25,8 @@
 #include <asm/irq.h>
 #include <asm/io.h>
 
+#include "irq.h"
+
 extern unsigned long lvl14_save[5];
 static unsigned long *linux_lvl14 = NULL;
 static unsigned long obp_lvl14[4];
diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c
index f2fdbb3664d3..6a2513321620 100644
--- a/arch/sparc/kernel/time.c
+++ b/arch/sparc/kernel/time.c
@@ -44,6 +44,8 @@
 #include <asm/of_device.h>
 #include <asm/irq_regs.h>
 
+#include "irq.h"
+
 DEFINE_SPINLOCK(rtc_lock);
 enum sparc_clock_type sp_clock_typ;
 DEFINE_SPINLOCK(mostek_lock);