Vineet Gupta 3daa48d1d9 ARC: [ASID] get_new_mmu_context() to conditionally allocate new ASID ... ASID allocation changes/1 This patch does 2 things: (1) get_new_mmu_context() NOW moves mm->ASID to a new value ONLY if it was from a prev allocation cycle/generation OR if mm had no ASID allocated (vs. before would unconditionally moving to a new ASID) Callers desiring unconditional update of ASID, e.g.local_flush_tlb_mm() (for parent's address space invalidation at fork) need to first force the parent to an unallocated ASID. (2) get_new_mmu_context() always sets the MMU PID reg with unchanged/new ASID value. The gains are: - consolidation of all asid alloc logic into get_new_mmu_context() - avoiding code duplication in switch_mm() for PID reg setting - Enables future change to fold activate_mm() into switch_mm() Signed-off-by: Vineet Gupta <vgupta@synopsys.com>		2013-08-30 21:42:18 +05:30
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asm	ARC: [ASID] get_new_mmu_context() to conditionally allocate new ASID	2013-08-30 21:42:18 +05:30
uapi/asm	ARC: stop using pt_regs->orig_r8	2013-06-22 19:23:26 +05:30