Messages in this thread Patch in this message | | | Date | Sun, 13 Oct 2002 13:42:07 -0700 | From | "Martin J. Bligh" <> | Subject | [PATCH] Summit support for 2.5 [3/4] |
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Patch originally by James Cleverdon
This patch turns TARGET_CPUS into a simple function target_cpus() that returns the approprate value for the appropriate apic addressing mode being used. Will optimise away on non-summit boxes.
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diff -urpN -X /home/fletch/.diff.exclude summit-2/arch/i386/kernel/io_apic.c summit-3/arch/i386/kernel/io_apic.c --- summit-2/arch/i386/kernel/io_apic.c Fri Oct 11 22:06:05 2002 +++ summit-3/arch/i386/kernel/io_apic.c Sat Oct 12 10:04:08 2002 @@ -692,6 +692,20 @@ next: return current_vector; } +static inline int target_cpus(void) +{ + switch (clustered_apic_mode) { + case CLUSTERED_APIC_NUMAQ: + /* broadcast to local quad */ + return APIC_BROADCAST_ID; + case CLUSTERED_APIC_XAPIC: + /* any CPU on cluster 0 */ + return XAPIC_DEST_CPUS_MASK; + default: + return cpu_online_map; + } +} + static struct hw_interrupt_type ioapic_level_irq_type; static struct hw_interrupt_type ioapic_edge_irq_type; @@ -714,7 +728,7 @@ void __init setup_IO_APIC_irqs(void) entry.delivery_mode = dest_LowestPrio; entry.dest_mode = INT_DELIVERY_MODE; entry.mask = 0; /* enable IRQ */ - entry.dest.logical.logical_dest = TARGET_CPUS; + entry.dest.logical.logical_dest = target_cpus(); idx = find_irq_entry(apic,pin,mp_INT); if (idx == -1) { @@ -732,7 +746,6 @@ void __init setup_IO_APIC_irqs(void) if (irq_trigger(idx)) { entry.trigger = 1; entry.mask = 1; - entry.dest.logical.logical_dest = TARGET_CPUS; } irq = pin_2_irq(idx, apic, pin); @@ -794,7 +807,7 @@ void __init setup_ExtINT_IRQ0_pin(unsign */ entry.dest_mode = INT_DELIVERY_MODE; entry.mask = 0; /* unmask IRQ now */ - entry.dest.logical.logical_dest = TARGET_CPUS; + entry.dest.logical.logical_dest = target_cpus(); entry.delivery_mode = dest_LowestPrio; entry.polarity = 0; entry.trigger = 0; @@ -1868,7 +1881,7 @@ int io_apic_set_pci_routing (int ioapic, entry.delivery_mode = dest_LowestPrio; entry.dest_mode = INT_DELIVERY_MODE; - entry.dest.logical.logical_dest = TARGET_CPUS; + entry.dest.logical.logical_dest = target_cpus(); entry.mask = 1; /* Disabled (masked) */ entry.trigger = 1; /* Level sensitive */ entry.polarity = 1; /* Low active */ diff -urpN -X /home/fletch/.diff.exclude summit-2/include/asm-i386/smp.h summit-3/include/asm-i386/smp.h --- summit-2/include/asm-i386/smp.h Sat Oct 12 08:54:08 2002 +++ summit-3/include/asm-i386/smp.h Sat Oct 12 10:01:36 2002 @@ -21,17 +21,10 @@ #endif #endif -#ifdef CONFIG_SMP -# ifdef CONFIG_CLUSTERED_APIC -# define TARGET_CPUS 0xf /* all CPUs in *THIS* quad */ -# define INT_DELIVERY_MODE 0 /* physical delivery on LOCAL quad */ -# else -# define TARGET_CPUS cpu_online_map -# define INT_DELIVERY_MODE 1 /* logical delivery broadcast to all procs */ -# endif +#ifdef CONFIG_X86_NUMAQ + #define INT_DELIVERY_MODE 0 /* physical delivery on LOCAL quad */ #else -# define INT_DELIVERY_MODE 1 /* logical delivery */ -# define TARGET_CPUS 0x01 + #define INT_DELIVERY_MODE 1 /* logical delivery broadcast to all procs */ #endif #define CLUSTERED_APIC_NONE 0x00 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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