Stop trying to do anything funny with the interrupt resource range. The
AT PIC will consume IRQ 2 correctly in the !APIC_IO case.
This commit is contained in:
Mike Smith
parent
1a432a2f54
commit
93e5f19e07
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=61992
@ -134,31 +134,22 @@ nexus_probe(device_t dev)
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* multi-ISA-bus systems. PCI interrupts are routed to the ISA
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* component, so in a way, PCI can be a partial child of an ISA bus(!).
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* APIC interrupts are global though.
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* In the non-APIC case, disallow the use of IRQ 2.
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*
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* XXX We depend on the AT PIC driver correctly claiming IRQ 2
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* to prevent its reuse elsewhere in the !APIC_IO case.
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*/
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irq_rman.rm_start = 0;
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irq_rman.rm_type = RMAN_ARRAY;
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irq_rman.rm_descr = "Interrupt request lines";
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#ifdef APIC_IO
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irq_rman.rm_end = APIC_INTMAPSIZE - 1;
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if (rman_init(&irq_rman)
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|| rman_manage_region(&irq_rman,
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irq_rman.rm_start, irq_rman.rm_end))
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panic("nexus_probe irq_rman");
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#else
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irq_rman.rm_end = 15;
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#ifdef PC98
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#endif
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if (rman_init(&irq_rman)
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|| rman_manage_region(&irq_rman,
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irq_rman.rm_start, irq_rman.rm_end))
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panic("nexus_probe irq_rman");
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#else
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if (rman_init(&irq_rman)
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|| rman_manage_region(&irq_rman, irq_rman.rm_start, 1)
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|| rman_manage_region(&irq_rman, 3, irq_rman.rm_end))
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panic("nexus_probe irq_rman");
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#endif /* PC98 */
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#endif
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/*
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* ISA DMA on PCI systems is implemented in the ISA part of each
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@ -134,31 +134,22 @@ nexus_probe(device_t dev)
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* multi-ISA-bus systems. PCI interrupts are routed to the ISA
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* component, so in a way, PCI can be a partial child of an ISA bus(!).
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* APIC interrupts are global though.
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* In the non-APIC case, disallow the use of IRQ 2.
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*
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* XXX We depend on the AT PIC driver correctly claiming IRQ 2
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* to prevent its reuse elsewhere in the !APIC_IO case.
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*/
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irq_rman.rm_start = 0;
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irq_rman.rm_type = RMAN_ARRAY;
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irq_rman.rm_descr = "Interrupt request lines";
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#ifdef APIC_IO
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irq_rman.rm_end = APIC_INTMAPSIZE - 1;
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if (rman_init(&irq_rman)
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|| rman_manage_region(&irq_rman,
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irq_rman.rm_start, irq_rman.rm_end))
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panic("nexus_probe irq_rman");
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#else
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irq_rman.rm_end = 15;
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#ifdef PC98
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#endif
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if (rman_init(&irq_rman)
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|| rman_manage_region(&irq_rman,
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irq_rman.rm_start, irq_rman.rm_end))
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panic("nexus_probe irq_rman");
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#else
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if (rman_init(&irq_rman)
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|| rman_manage_region(&irq_rman, irq_rman.rm_start, 1)
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|| rman_manage_region(&irq_rman, 3, irq_rman.rm_end))
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panic("nexus_probe irq_rman");
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#endif /* PC98 */
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#endif
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/*
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* ISA DMA on PCI systems is implemented in the ISA part of each
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@ -134,31 +134,22 @@ nexus_probe(device_t dev)
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* multi-ISA-bus systems. PCI interrupts are routed to the ISA
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* component, so in a way, PCI can be a partial child of an ISA bus(!).
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* APIC interrupts are global though.
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* In the non-APIC case, disallow the use of IRQ 2.
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*
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* XXX We depend on the AT PIC driver correctly claiming IRQ 2
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* to prevent its reuse elsewhere in the !APIC_IO case.
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*/
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irq_rman.rm_start = 0;
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irq_rman.rm_type = RMAN_ARRAY;
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irq_rman.rm_descr = "Interrupt request lines";
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#ifdef APIC_IO
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irq_rman.rm_end = APIC_INTMAPSIZE - 1;
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if (rman_init(&irq_rman)
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|| rman_manage_region(&irq_rman,
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irq_rman.rm_start, irq_rman.rm_end))
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panic("nexus_probe irq_rman");
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#else
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irq_rman.rm_end = 15;
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#ifdef PC98
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#endif
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if (rman_init(&irq_rman)
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|| rman_manage_region(&irq_rman,
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irq_rman.rm_start, irq_rman.rm_end))
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panic("nexus_probe irq_rman");
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#else
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if (rman_init(&irq_rman)
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|| rman_manage_region(&irq_rman, irq_rman.rm_start, 1)
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|| rman_manage_region(&irq_rman, 3, irq_rman.rm_end))
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panic("nexus_probe irq_rman");
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#endif /* PC98 */
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#endif
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/*
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* ISA DMA on PCI systems is implemented in the ISA part of each
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@ -134,31 +134,22 @@ nexus_probe(device_t dev)
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* multi-ISA-bus systems. PCI interrupts are routed to the ISA
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* component, so in a way, PCI can be a partial child of an ISA bus(!).
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* APIC interrupts are global though.
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* In the non-APIC case, disallow the use of IRQ 2.
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*
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* XXX We depend on the AT PIC driver correctly claiming IRQ 2
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* to prevent its reuse elsewhere in the !APIC_IO case.
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*/
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irq_rman.rm_start = 0;
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irq_rman.rm_type = RMAN_ARRAY;
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irq_rman.rm_descr = "Interrupt request lines";
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#ifdef APIC_IO
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irq_rman.rm_end = APIC_INTMAPSIZE - 1;
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if (rman_init(&irq_rman)
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|| rman_manage_region(&irq_rman,
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irq_rman.rm_start, irq_rman.rm_end))
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panic("nexus_probe irq_rman");
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#else
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irq_rman.rm_end = 15;
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#ifdef PC98
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#endif
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if (rman_init(&irq_rman)
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|| rman_manage_region(&irq_rman,
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irq_rman.rm_start, irq_rman.rm_end))
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panic("nexus_probe irq_rman");
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#else
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if (rman_init(&irq_rman)
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|| rman_manage_region(&irq_rman, irq_rman.rm_start, 1)
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|| rman_manage_region(&irq_rman, 3, irq_rman.rm_end))
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panic("nexus_probe irq_rman");
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#endif /* PC98 */
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#endif
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/*
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* ISA DMA on PCI systems is implemented in the ISA part of each
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