File-copy from v4.4.100
This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Please refer to that tree for all history prior to this point.
Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/arch/sparc/include/asm/irq_64.h b/arch/sparc/include/asm/irq_64.h
new file mode 100644
index 0000000..3f70f90
--- /dev/null
+++ b/arch/sparc/include/asm/irq_64.h
@@ -0,0 +1,98 @@
+/* irq.h: IRQ registers on the 64-bit Sparc.
+ *
+ * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz)
+ */
+
+#ifndef _SPARC64_IRQ_H
+#define _SPARC64_IRQ_H
+
+#include <linux/linkage.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <asm/pil.h>
+#include <asm/ptrace.h>
+
+/* IMAP/ICLR register defines */
+#define IMAP_VALID 0x80000000UL /* IRQ Enabled */
+#define IMAP_TID_UPA 0x7c000000UL /* UPA TargetID */
+#define IMAP_TID_JBUS 0x7c000000UL /* JBUS TargetID */
+#define IMAP_TID_SHIFT 26
+#define IMAP_AID_SAFARI 0x7c000000UL /* Safari AgentID */
+#define IMAP_AID_SHIFT 26
+#define IMAP_NID_SAFARI 0x03e00000UL /* Safari NodeID */
+#define IMAP_NID_SHIFT 21
+#define IMAP_IGN 0x000007c0UL /* IRQ Group Number */
+#define IMAP_INO 0x0000003fUL /* IRQ Number */
+#define IMAP_INR 0x000007ffUL /* Full interrupt number*/
+
+#define ICLR_IDLE 0x00000000UL /* Idle state */
+#define ICLR_TRANSMIT 0x00000001UL /* Transmit state */
+#define ICLR_PENDING 0x00000003UL /* Pending state */
+
+/* The largest number of unique interrupt sources we support.
+ * If this needs to ever be larger than 255, you need to change
+ * the type of ino_bucket->irq as appropriate.
+ *
+ * ino_bucket->irq allocation is made during {sun4v_,}build_irq().
+ */
+#define NR_IRQS (2048)
+
+void irq_install_pre_handler(int irq,
+ void (*func)(unsigned int, void *, void *),
+ void *arg1, void *arg2);
+#define irq_canonicalize(irq) (irq)
+unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap);
+unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino);
+unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino);
+unsigned int sun4v_build_msi(u32 devhandle, unsigned int *irq_p,
+ unsigned int msi_devino_start,
+ unsigned int msi_devino_end);
+void sun4v_destroy_msi(unsigned int irq);
+unsigned int sun4u_build_msi(u32 portid, unsigned int *irq_p,
+ unsigned int msi_devino_start,
+ unsigned int msi_devino_end,
+ unsigned long imap_base,
+ unsigned long iclr_base);
+void sun4u_destroy_msi(unsigned int irq);
+
+unsigned int irq_alloc(unsigned int dev_handle, unsigned int dev_ino);
+void irq_free(unsigned int irq);
+
+void __init init_IRQ(void);
+void fixup_irqs(void);
+
+static inline void set_softint(unsigned long bits)
+{
+ __asm__ __volatile__("wr %0, 0x0, %%set_softint"
+ : /* No outputs */
+ : "r" (bits));
+}
+
+static inline void clear_softint(unsigned long bits)
+{
+ __asm__ __volatile__("wr %0, 0x0, %%clear_softint"
+ : /* No outputs */
+ : "r" (bits));
+}
+
+static inline unsigned long get_softint(void)
+{
+ unsigned long retval;
+
+ __asm__ __volatile__("rd %%softint, %0"
+ : "=r" (retval));
+ return retval;
+}
+
+void arch_trigger_all_cpu_backtrace(bool);
+#define arch_trigger_all_cpu_backtrace arch_trigger_all_cpu_backtrace
+
+extern void *hardirq_stack[NR_CPUS];
+extern void *softirq_stack[NR_CPUS];
+#define __ARCH_HAS_DO_SOFTIRQ
+
+#define NO_IRQ 0xffffffff
+
+#endif