5 * Definitions for SMTC multitasking on MIPS MT cores
8 #include <asm/mips_mt.h>
11 * System-wide SMTC status information
14 extern unsigned int smtc_status;
16 #define SMTC_TLB_SHARED 0x00000001
17 #define SMTC_MTC_ACTIVE 0x00000002
20 * TLB/ASID Management information
23 #define MAX_SMTC_TLBS 2
24 #define MAX_SMTC_ASIDS 256
29 typedef short asiduse;
35 extern asiduse smtc_live_asid[MAX_SMTC_TLBS][MAX_SMTC_ASIDS];
37 void smtc_get_new_mmu_context(struct mm_struct *mm, unsigned long cpu);
39 void smtc_flush_tlb_asid(unsigned long asid);
40 extern int mipsmt_build_cpu_map(int startslot);
41 extern void mipsmt_prepare_cpus(void);
42 extern void smtc_smp_finish(void);
43 extern void smtc_boot_secondary(int cpu, struct task_struct *t);
46 * Sharing the TLB between multiple VPEs means that the
47 * "random" index selection function is not allowed to
48 * select the current value of the Index register. To
49 * avoid additional TLB pressure, the Index registers
50 * are "parked" with an non-Valid value.
53 #define PARKED_INDEX ((unsigned int)0x80000000)
55 #endif /* _ASM_SMTC_MT_H */