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99 lines
3.0 KiB
99 lines
3.0 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* irq.h: IRQ registers on the 64-bit Sparc. |
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* |
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* Copyright (C) 1996 David S. Miller ([email protected]) |
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* Copyright (C) 1998 Jakub Jelinek ([email protected]) |
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*/ |
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#ifndef _SPARC64_IRQ_H |
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#define _SPARC64_IRQ_H |
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#include <linux/linkage.h> |
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#include <linux/kernel.h> |
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#include <linux/errno.h> |
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#include <linux/interrupt.h> |
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#include <asm/pil.h> |
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#include <asm/ptrace.h> |
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/* IMAP/ICLR register defines */ |
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#define IMAP_VALID 0x80000000UL /* IRQ Enabled */ |
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#define IMAP_TID_UPA 0x7c000000UL /* UPA TargetID */ |
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#define IMAP_TID_JBUS 0x7c000000UL /* JBUS TargetID */ |
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#define IMAP_TID_SHIFT 26 |
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#define IMAP_AID_SAFARI 0x7c000000UL /* Safari AgentID */ |
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#define IMAP_AID_SHIFT 26 |
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#define IMAP_NID_SAFARI 0x03e00000UL /* Safari NodeID */ |
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#define IMAP_NID_SHIFT 21 |
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#define IMAP_IGN 0x000007c0UL /* IRQ Group Number */ |
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#define IMAP_INO 0x0000003fUL /* IRQ Number */ |
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#define IMAP_INR 0x000007ffUL /* Full interrupt number*/ |
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#define ICLR_IDLE 0x00000000UL /* Idle state */ |
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#define ICLR_TRANSMIT 0x00000001UL /* Transmit state */ |
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#define ICLR_PENDING 0x00000003UL /* Pending state */ |
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/* The largest number of unique interrupt sources we support. |
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* If this needs to ever be larger than 255, you need to change |
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* the type of ino_bucket->irq as appropriate. |
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* |
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* ino_bucket->irq allocation is made during {sun4v_,}build_irq(). |
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*/ |
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#define NR_IRQS (2048) |
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void irq_install_pre_handler(int irq, |
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void (*func)(unsigned int, void *, void *), |
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void *arg1, void *arg2); |
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#define irq_canonicalize(irq) (irq) |
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unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap); |
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unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino); |
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unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino); |
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unsigned int sun4v_build_msi(u32 devhandle, unsigned int *irq_p, |
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unsigned int msi_devino_start, |
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unsigned int msi_devino_end); |
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void sun4v_destroy_msi(unsigned int irq); |
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unsigned int sun4u_build_msi(u32 portid, unsigned int *irq_p, |
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unsigned int msi_devino_start, |
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unsigned int msi_devino_end, |
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unsigned long imap_base, |
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unsigned long iclr_base); |
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void sun4u_destroy_msi(unsigned int irq); |
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unsigned int irq_alloc(unsigned int dev_handle, unsigned int dev_ino); |
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void irq_free(unsigned int irq); |
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void __init init_IRQ(void); |
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void fixup_irqs(void); |
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static inline void set_softint(unsigned long bits) |
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{ |
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__asm__ __volatile__("wr %0, 0x0, %%set_softint" |
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: /* No outputs */ |
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: "r" (bits)); |
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} |
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static inline void clear_softint(unsigned long bits) |
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{ |
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__asm__ __volatile__("wr %0, 0x0, %%clear_softint" |
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: /* No outputs */ |
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: "r" (bits)); |
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} |
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static inline unsigned long get_softint(void) |
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{ |
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unsigned long retval; |
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__asm__ __volatile__("rd %%softint, %0" |
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: "=r" (retval)); |
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return retval; |
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} |
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void arch_trigger_cpumask_backtrace(const struct cpumask *mask, |
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bool exclude_self); |
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#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace |
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extern void *hardirq_stack[NR_CPUS]; |
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extern void *softirq_stack[NR_CPUS]; |
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#define NO_IRQ 0xffffffff |
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#endif
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