diff options
| author | David S. Miller <davem@sunset.davemloft.net> | 2006-02-07 21:51:08 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 01:11:55 -0800 |
| commit | 481295f982b21b1dbe71cbf41d3a93028fee30d1 (patch) | |
| tree | 5b1af84a7f83021698bcf138c8875d7290e65282 | |
| parent | 89a5264f065672a882f555228000614a6b2182b7 (diff) | |
[SPARC64]: Register per-cpu fault status area with sun4v hypervisor.
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | arch/sparc64/kernel/smp.c | 3 | ||||
| -rw-r--r-- | arch/sparc64/mm/init.c | 29 | ||||
| -rw-r--r-- | include/asm-sparc64/pgtable.h | 1 |
3 files changed, 29 insertions, 4 deletions
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c index aba0f886b05b..223cc6bd369a 100644 --- a/arch/sparc64/kernel/smp.c +++ b/arch/sparc64/kernel/smp.c @@ -122,6 +122,9 @@ void __init smp_callin(void) __local_per_cpu_offset = __per_cpu_offset(cpuid); + if (tlb_type == hypervisor) + sun4v_register_fault_status(); + __flush_tlb_all(); smp_setup_percpu_timer(); diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index e9aac424877f..4c95cf34075b 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -40,6 +40,7 @@ #include <asm/spitfire.h> #include <asm/sections.h> #include <asm/tsb.h> +#include <asm/hypervisor.h> extern void device_scan(void); @@ -1083,6 +1084,24 @@ static void __init tsb_phys_patch(void) } } +/* Register this cpu's fault status area with the hypervisor. */ +void __cpuinit sun4v_register_fault_status(void) +{ + register unsigned long arg0 asm("%o0"); + register unsigned long arg1 asm("%o1"); + int cpu = hard_smp_processor_id(); + struct trap_per_cpu *tb = &trap_block[cpu]; + unsigned long pa; + + pa = kern_base + ((unsigned long) tb - KERNBASE); + arg0 = HV_FAST_MMU_FAULT_AREA_CONF; + arg1 = pa; + __asm__ __volatile__("ta %4" + : "=&r" (arg0), "=&r" (arg1) + : "0" (arg0), "1" (arg1), + "i" (HV_FAST_TRAP)); +} + /* paging_init() sets up the page tables */ extern void cheetah_ecache_flush_init(void); @@ -1096,12 +1115,17 @@ void __init paging_init(void) unsigned long end_pfn, pages_avail, shift; unsigned long real_end, i; + kern_base = (prom_boot_mapping_phys_low >> 22UL) << 22UL; + kern_size = (unsigned long)&_end - (unsigned long)KERNBASE; + if (tlb_type == cheetah_plus || tlb_type == hypervisor) tsb_phys_patch(); - if (tlb_type == hypervisor) + if (tlb_type == hypervisor) { sun4v_patch_tlb_handlers(); + sun4v_register_fault_status(); + } /* Find available physical memory... */ read_obp_memory("available", &pavail[0], &pavail_ents); @@ -1112,9 +1136,6 @@ void __init paging_init(void) pfn_base = phys_base >> PAGE_SHIFT; - kern_base = (prom_boot_mapping_phys_low >> 22UL) << 22UL; - kern_size = (unsigned long)&_end - (unsigned long)KERNBASE; - set_bit(0, mmu_context_bmap); shift = kern_base + PAGE_OFFSET - ((unsigned long)KERNBASE); diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h index 2b2ecd6104d2..c42c06a37d18 100644 --- a/include/asm-sparc64/pgtable.h +++ b/include/asm-sparc64/pgtable.h @@ -437,6 +437,7 @@ extern unsigned long get_fb_unmapped_area(struct file *filp, unsigned long, #define HAVE_ARCH_FB_UNMAPPED_AREA extern void pgtable_cache_init(void); +extern void sun4v_register_fault_status(void); #endif /* !(__ASSEMBLY__) */ |