diff options
Diffstat (limited to 'include/asm-ia64')
| -rw-r--r-- | include/asm-ia64/machvec.h | 13 | ||||
| -rw-r--r-- | include/asm-ia64/machvec_sn2.h | 4 | ||||
| -rw-r--r-- | include/asm-ia64/processor.h | 3 | ||||
| -rw-r--r-- | include/asm-ia64/system.h | 7 | ||||
| -rw-r--r-- | include/asm-ia64/thread_info.h | 1 |
5 files changed, 26 insertions, 2 deletions
diff --git a/include/asm-ia64/machvec.h b/include/asm-ia64/machvec.h index ca5ea994d688..c3e4ed8a3e17 100644 --- a/include/asm-ia64/machvec.h +++ b/include/asm-ia64/machvec.h @@ -20,6 +20,7 @@ struct scatterlist; struct page; struct mm_struct; struct pci_bus; +struct task_struct; typedef void ia64_mv_setup_t (char **); typedef void ia64_mv_cpu_init_t (void); @@ -34,6 +35,7 @@ typedef int ia64_mv_pci_legacy_read_t (struct pci_bus *, u16 port, u32 *val, u8 size); typedef int ia64_mv_pci_legacy_write_t (struct pci_bus *, u16 port, u32 val, u8 size); +typedef void ia64_mv_migrate_t(struct task_struct * task); /* DMA-mapping interface: */ typedef void ia64_mv_dma_init (void); @@ -85,6 +87,11 @@ machvec_noop_mm (struct mm_struct *mm) { } +static inline void +machvec_noop_task (struct task_struct *task) +{ +} + extern void machvec_setup (char **); extern void machvec_timer_interrupt (int, void *, struct pt_regs *); extern void machvec_dma_sync_single (struct device *, dma_addr_t, size_t, int); @@ -146,6 +153,7 @@ extern void machvec_tlb_migrate_finish (struct mm_struct *); # define platform_readw_relaxed ia64_mv.readw_relaxed # define platform_readl_relaxed ia64_mv.readl_relaxed # define platform_readq_relaxed ia64_mv.readq_relaxed +# define platform_migrate ia64_mv.migrate # endif /* __attribute__((__aligned__(16))) is required to make size of the @@ -194,6 +202,7 @@ struct ia64_machine_vector { ia64_mv_readw_relaxed_t *readw_relaxed; ia64_mv_readl_relaxed_t *readl_relaxed; ia64_mv_readq_relaxed_t *readq_relaxed; + ia64_mv_migrate_t *migrate; } __attribute__((__aligned__(16))); /* align attrib? see above comment */ #define MACHVEC_INIT(name) \ @@ -238,6 +247,7 @@ struct ia64_machine_vector { platform_readw_relaxed, \ platform_readl_relaxed, \ platform_readq_relaxed, \ + platform_migrate, \ } extern struct ia64_machine_vector ia64_mv; @@ -386,5 +396,8 @@ extern ia64_mv_dma_supported swiotlb_dma_supported; #ifndef platform_readq_relaxed # define platform_readq_relaxed __ia64_readq_relaxed #endif +#ifndef platform_migrate +# define platform_migrate machvec_noop_task +#endif #endif /* _ASM_IA64_MACHVEC_H */ diff --git a/include/asm-ia64/machvec_sn2.h b/include/asm-ia64/machvec_sn2.h index e1b6cd63f49e..6f0021bb3874 100644 --- a/include/asm-ia64/machvec_sn2.h +++ b/include/asm-ia64/machvec_sn2.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2002-2003 Silicon Graphics, Inc. All Rights Reserved. + * Copyright (c) 2002-2003,2006 Silicon Graphics, Inc. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License @@ -71,6 +71,7 @@ extern ia64_mv_dma_sync_single_for_device sn_dma_sync_single_for_device; extern ia64_mv_dma_sync_sg_for_device sn_dma_sync_sg_for_device; extern ia64_mv_dma_mapping_error sn_dma_mapping_error; extern ia64_mv_dma_supported sn_dma_supported; +extern ia64_mv_migrate_t sn_migrate; /* * This stuff has dual use! @@ -120,6 +121,7 @@ extern ia64_mv_dma_supported sn_dma_supported; #define platform_dma_sync_sg_for_device sn_dma_sync_sg_for_device #define platform_dma_mapping_error sn_dma_mapping_error #define platform_dma_supported sn_dma_supported +#define platform_migrate sn_migrate #include <asm/sn/io.h> diff --git a/include/asm-ia64/processor.h b/include/asm-ia64/processor.h index 09b99029ac1a..29d5574d4375 100644 --- a/include/asm-ia64/processor.h +++ b/include/asm-ia64/processor.h @@ -50,7 +50,8 @@ #define IA64_THREAD_PM_VALID (__IA64_UL(1) << 2) /* performance registers valid? */ #define IA64_THREAD_UAC_NOPRINT (__IA64_UL(1) << 3) /* don't log unaligned accesses */ #define IA64_THREAD_UAC_SIGBUS (__IA64_UL(1) << 4) /* generate SIGBUS on unaligned acc. */ - /* bit 5 is currently unused */ +#define IA64_THREAD_MIGRATION (__IA64_UL(1) << 5) /* require migration + sync at ctx sw */ #define IA64_THREAD_FPEMU_NOPRINT (__IA64_UL(1) << 6) /* don't log any fpswa faults */ #define IA64_THREAD_FPEMU_SIGFPE (__IA64_UL(1) << 7) /* send a SIGFPE for fpswa faults */ diff --git a/include/asm-ia64/system.h b/include/asm-ia64/system.h index 80c5a234e259..99b6f307e94b 100644 --- a/include/asm-ia64/system.h +++ b/include/asm-ia64/system.h @@ -244,6 +244,13 @@ extern void ia64_load_extra (struct task_struct *task); __ia64_save_fpu((prev)->thread.fph); \ } \ __switch_to(prev, next, last); \ + /* "next" in old context is "current" in new context */ \ + if (unlikely((current->thread.flags & IA64_THREAD_MIGRATION) && \ + (task_cpu(current) != \ + task_thread_info(current)->last_cpu))) { \ + platform_migrate(current); \ + task_thread_info(current)->last_cpu = task_cpu(current); \ + } \ } while (0) #else # define switch_to(prev,next,last) __switch_to(prev, next, last) diff --git a/include/asm-ia64/thread_info.h b/include/asm-ia64/thread_info.h index 1d6518fe1f02..81641a6905d1 100644 --- a/include/asm-ia64/thread_info.h +++ b/include/asm-ia64/thread_info.h @@ -26,6 +26,7 @@ struct thread_info { struct exec_domain *exec_domain;/* execution domain */ __u32 flags; /* thread_info flags (see TIF_*) */ __u32 cpu; /* current CPU */ + __u32 last_cpu; /* Last CPU thread ran on */ mm_segment_t addr_limit; /* user-level address space limit */ int preempt_count; /* 0=premptable, <0=BUG; will also serve as bh-counter */ struct restart_block restart_block; |