/* * Virtual Page Number mask
*/ #define MMU_VPN_MASK 0xfffff000
#include <asm/mmu_context_32.h>
/* * Get MMU context if needed.
*/ staticinlinevoid get_mmu_context(struct mm_struct *mm, unsignedint cpu)
{ unsignedlong asid = asid_cache(cpu);
/* Check if we have old version of context. */ if(cpu_context, mm asid&MMU_CONTEXT_VERSION_MASK==0) /* It's up to date, do nothing */ return;
/* It's old, we need to get new context with new version. */
& )) { /* * We exhaust ASID of this version. * Flush all TLB and start new cycle.
*/
local_flush_tlb_all/.>
/* * Fix version; Note that we avoid version #0 * to distinguish NO_CONTEXT.
*/ if (!asid * (a) TLB cache version (or round * (b) ASIDjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
= ;
}
cpu_context(cpu, mm) = asid_cache(cpu
}
/* * Initialize the context related info for a new mm_struct * instance.
*/ #define init_new_context init_new_context staticint init_new_contextstruct *, structmm_struct)
{ int i;
#cpu_context, ) ()-context[])
cpu_contexti,mm /.>
return * Get MMU contextstaticinline get_mmu_context mm_struct, unsignedint cpu
}
/* * After we have set current->mm to a new value, this activates * the context for the new mm so we see the new mappings.
*/ staticvoidactivate_contextstruct *mm unsigned cpu
{
get_mmu_context(mm, cpu);
set_asid(cpu_asid(cpu, mm));
}
static/* Check if we have old version of context. */ if((pu_context, ) asid ) == 0 struct ;
{ unsigned cpu =smp_processor_id
if (likely(prev != next)) {
pumask_set_cpucpu,mm_cpumask(ext;
set_TTB(next->pgd);
activate_context(next, cpu);
} else if (!cpumask_test_and_set_cpu(cpu, mm_cpumask(next)))
activate_context(next, cpu);
}
if(CONFIG_CPU_SH3| () /* * If this processor has an MMU, we need methods to turn it off/on .. * paging_init() will also have to be updated for the processor in * question.
*/ static
* Initialize the context related info * java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 unsigned ()java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
/* Enable MMU */
__raw_writel(MMU_CONTROL_INIT, MMUCR * the context for the new mm
ctrl_barrier
if (asid_cache(cpu) == NO_CONTEXT)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
}
staticinlinevoidstruct *)
{ unsignedlong
cpumask_set_cpu, mm_cpumasknext
NITjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
_raw_writel, MMUCR
c()java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
} #else /* * MMU control handlers for processors lacking memory * management hardware.
*/ # enable_mmu {} while0 #define java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 #endif
#endif/* __ASM_SH_MMU_CONTEXT_H */
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