1 files changed, 96 insertions, 0 deletions
diff --git a/arch/sparc/kernel/irq.h b/arch/sparc/kernel/irq.h
new file mode 100644
index 00000000..5a021dd2
--- /dev/null
+++ b/arch/sparc/kernel/irq.h
@@ -0,0 +1,96 @@
+#include <linux/platform_device.h>
+
+#include <asm/btfixup.h>
+#include <asm/cpu_type.h>
+
+struct irq_bucket {
+        struct irq_bucket *next;
+        unsigned int real_irq;
+        unsigned int irq;
+        unsigned int pil;
+};
+
+#define SUN4D_MAX_BOARD 10
+#define SUN4D_MAX_IRQ ((SUN4D_MAX_BOARD + 2) << 5)
+
+/* Map between the irq identifier used in hw to the
+ * irq_bucket. The map is sufficient large to hold
+ * the sun4d hw identifiers.
+ */
+extern struct irq_bucket *irq_map[SUN4D_MAX_IRQ];
+
+
+/* sun4m specific type definitions */
+
+/* This maps direct to CPU specific interrupt registers */
+struct sun4m_irq_percpu {
+	u32	pending;
+	u32	clear;
+	u32	set;
+};
+
+/* This maps direct to global interrupt registers */
+struct sun4m_irq_global {
+	u32	pending;
+	u32	mask;
+	u32	mask_clear;
+	u32	mask_set;
+	u32	interrupt_target;
+};
+
+extern struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS];
+extern struct sun4m_irq_global __iomem *sun4m_irq_global;
+
+/*
+ * Platform specific irq configuration
+ * The individual platforms assign their platform
+ * specifics in their init functions.
+ */
+struct sparc_irq_config {
+	void (*init_timers)(irq_handler_t);
+	unsigned int (*build_device_irq)(struct platform_device *op,
+	                                 unsigned int real_irq);
+};
+extern struct sparc_irq_config sparc_irq_config;
+
+unsigned int irq_alloc(unsigned int real_irq, unsigned int pil);
+void irq_link(unsigned int irq);
+void irq_unlink(unsigned int irq);
+void handler_irq(unsigned int pil, struct pt_regs *regs);
+
+/* Dave Redman (djhr@tadpole.co.uk)
+ * changed these to function pointers.. it saves cycles and will allow
+ * the irq dependencies to be split into different files at a later date
+ * sun4c_irq.c, sun4m_irq.c etc so we could reduce the kernel size.
+ * Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ * Changed these to btfixup entities... It saves cycles :)
+ */
+
+BTFIXUPDEF_CALL(void, clear_clock_irq, void)
+BTFIXUPDEF_CALL(void, load_profile_irq, int, unsigned int)
+
+static inline void clear_clock_irq(void)
+{
+	BTFIXUP_CALL(clear_clock_irq)();
+}
+
+static inline void load_profile_irq(int cpu, int limit)
+{
+	BTFIXUP_CALL(load_profile_irq)(cpu, limit);
+}
+
+#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)
+
+/* All SUN4D IPIs are sent on this IRQ, may be shared with hard IRQs */
+#define SUN4D_IPI_IRQ 13
+
+extern void sun4d_ipi_interrupt(void);
+
+#endif