| .. | .. |
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| 18 | 18 | #include <linux/bitops.h> |
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| 19 | 19 | #include <linux/irqreturn.h> |
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| 20 | 20 | |
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| 21 | | -#include <asm/io.h> |
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| 22 | 21 | #include <asm/param.h> |
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| 23 | 22 | #include <asm/processor.h> |
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| 24 | 23 | #include <asm/ptrace.h> |
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| .. | .. |
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| 44 | 43 | |
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| 45 | 44 | #ifdef CONFIG_SMP |
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| 46 | 45 | |
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| 47 | | -#define XTP_OFFSET 0x1e0008 |
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| 48 | | - |
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| 49 | | -#define SMP_IRQ_REDIRECTION (1 << 0) |
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| 50 | | -#define SMP_IPI_REDIRECTION (1 << 1) |
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| 51 | | - |
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| 52 | 46 | #define raw_smp_processor_id() (current_thread_info()->cpu) |
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| 53 | 47 | |
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| 54 | 48 | extern struct smp_boot_data { |
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| .. | .. |
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| 62 | 56 | DECLARE_PER_CPU_SHARED_ALIGNED(cpumask_t, cpu_sibling_map); |
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| 63 | 57 | extern int smp_num_siblings; |
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| 64 | 58 | extern void __iomem *ipi_base_addr; |
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| 65 | | -extern unsigned char smp_int_redirect; |
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| 66 | 59 | |
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| 67 | 60 | extern volatile int ia64_cpu_to_sapicid[]; |
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| 68 | 61 | #define cpu_physical_id(i) ia64_cpu_to_sapicid[i] |
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| .. | .. |
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| 82 | 75 | if (cpu_physical_id(i) == cpuid) |
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| 83 | 76 | break; |
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| 84 | 77 | return i; |
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| 85 | | -} |
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| 86 | | - |
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| 87 | | -/* |
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| 88 | | - * XTP control functions: |
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| 89 | | - * min_xtp : route all interrupts to this CPU |
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| 90 | | - * normal_xtp: nominal XTP value |
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| 91 | | - * max_xtp : never deliver interrupts to this CPU. |
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| 92 | | - */ |
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| 93 | | - |
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| 94 | | -static inline void |
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| 95 | | -min_xtp (void) |
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| 96 | | -{ |
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| 97 | | - if (smp_int_redirect & SMP_IRQ_REDIRECTION) |
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| 98 | | - writeb(0x00, ipi_base_addr + XTP_OFFSET); /* XTP to min */ |
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| 99 | | -} |
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| 100 | | - |
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| 101 | | -static inline void |
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| 102 | | -normal_xtp (void) |
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| 103 | | -{ |
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| 104 | | - if (smp_int_redirect & SMP_IRQ_REDIRECTION) |
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| 105 | | - writeb(0x08, ipi_base_addr + XTP_OFFSET); /* XTP normal */ |
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| 106 | | -} |
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| 107 | | - |
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| 108 | | -static inline void |
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| 109 | | -max_xtp (void) |
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| 110 | | -{ |
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| 111 | | - if (smp_int_redirect & SMP_IRQ_REDIRECTION) |
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| 112 | | - writeb(0x0f, ipi_base_addr + XTP_OFFSET); /* Set XTP to max */ |
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| 113 | 78 | } |
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| 114 | 79 | |
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| 115 | 80 | /* Upping and downing of CPUs */ |
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