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106 lines
2.7 KiB
106 lines
2.7 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __ASM_IA64_IOSAPIC_H |
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#define __ASM_IA64_IOSAPIC_H |
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#define IOSAPIC_REG_SELECT 0x0 |
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#define IOSAPIC_WINDOW 0x10 |
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#define IOSAPIC_EOI 0x40 |
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#define IOSAPIC_VERSION 0x1 |
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/* |
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* Redirection table entry |
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*/ |
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#define IOSAPIC_RTE_LOW(i) (0x10+i*2) |
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#define IOSAPIC_RTE_HIGH(i) (0x11+i*2) |
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#define IOSAPIC_DEST_SHIFT 16 |
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/* |
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* Delivery mode |
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*/ |
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#define IOSAPIC_DELIVERY_SHIFT 8 |
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#define IOSAPIC_FIXED 0x0 |
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#define IOSAPIC_LOWEST_PRIORITY 0x1 |
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#define IOSAPIC_PMI 0x2 |
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#define IOSAPIC_NMI 0x4 |
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#define IOSAPIC_INIT 0x5 |
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#define IOSAPIC_EXTINT 0x7 |
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/* |
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* Interrupt polarity |
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*/ |
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#define IOSAPIC_POLARITY_SHIFT 13 |
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#define IOSAPIC_POL_HIGH 0 |
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#define IOSAPIC_POL_LOW 1 |
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/* |
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* Trigger mode |
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*/ |
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#define IOSAPIC_TRIGGER_SHIFT 15 |
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#define IOSAPIC_EDGE 0 |
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#define IOSAPIC_LEVEL 1 |
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/* |
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* Mask bit |
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*/ |
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#define IOSAPIC_MASK_SHIFT 16 |
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#define IOSAPIC_MASK (1<<IOSAPIC_MASK_SHIFT) |
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#define IOSAPIC_VECTOR_MASK 0xffffff00 |
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#ifndef __ASSEMBLY__ |
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#define NR_IOSAPICS 256 |
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#define iosapic_pcat_compat_init ia64_native_iosapic_pcat_compat_init |
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#define __iosapic_read __ia64_native_iosapic_read |
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#define __iosapic_write __ia64_native_iosapic_write |
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#define iosapic_get_irq_chip ia64_native_iosapic_get_irq_chip |
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extern void __init ia64_native_iosapic_pcat_compat_init(void); |
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extern struct irq_chip *ia64_native_iosapic_get_irq_chip(unsigned long trigger); |
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static inline unsigned int |
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__ia64_native_iosapic_read(char __iomem *iosapic, unsigned int reg) |
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{ |
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writel(reg, iosapic + IOSAPIC_REG_SELECT); |
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return readl(iosapic + IOSAPIC_WINDOW); |
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} |
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static inline void |
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__ia64_native_iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val) |
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{ |
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writel(reg, iosapic + IOSAPIC_REG_SELECT); |
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writel(val, iosapic + IOSAPIC_WINDOW); |
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} |
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static inline void iosapic_eoi(char __iomem *iosapic, u32 vector) |
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{ |
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writel(vector, iosapic + IOSAPIC_EOI); |
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} |
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extern void __init iosapic_system_init (int pcat_compat); |
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extern int iosapic_init (unsigned long address, unsigned int gsi_base); |
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extern int iosapic_remove (unsigned int gsi_base); |
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extern int gsi_to_irq (unsigned int gsi); |
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extern int iosapic_register_intr (unsigned int gsi, unsigned long polarity, |
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unsigned long trigger); |
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extern void iosapic_unregister_intr (unsigned int irq); |
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extern void iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi, |
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unsigned long polarity, |
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unsigned long trigger); |
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extern int __init iosapic_register_platform_intr (u32 int_type, |
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unsigned int gsi, |
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int pmi_vector, |
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u16 eid, u16 id, |
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unsigned long polarity, |
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unsigned long trigger); |
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#ifdef CONFIG_NUMA |
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extern void map_iosapic_to_node (unsigned int, int); |
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#endif |
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# endif /* !__ASSEMBLY__ */ |
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#endif /* __ASM_IA64_IOSAPIC_H */
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