5  * Based on earlier code written by:
29 #include <asm/code-patching.h>
66 	WRITE_ONCE(p->save_area[index].esid, 0);  in slb_shadow_update()
67 	WRITE_ONCE(p->save_area[index].vsid, cpu_to_be64(mk_vsid_data(ea, ssize, flags)));  in slb_shadow_update()
68 	WRITE_ONCE(p->save_area[index].esid, cpu_to_be64(mk_esid_data(ea, ssize, index)));  in slb_shadow_update()
73 	WRITE_ONCE(get_slb_shadow()->save_area[index].esid, cpu_to_be64(index));  in slb_shadow_clear()
105 		     : "r" (be64_to_cpu(p->save_area[index].vsid)),  in __slb_restore_bolted_realmode()
106 		       "r" (be64_to_cpu(p->save_area[index].esid)));  in __slb_restore_bolted_realmode()
118 	get_paca()->slb_cache_ptr = 0;  in slb_restore_bolted_realmode()
144 	ksp_esid_data = mk_esid_data(get_paca()->kstack, mmu_kernel_ssize, KSTACK_INDEX);  in __slb_flush_and_rebolt()
151 		slb_shadow_update(get_paca()->kstack, mmu_kernel_ssize, lflags, KSTACK_INDEX);  in __slb_flush_and_rebolt()
153 			be64_to_cpu(get_slb_shadow()->save_area[KSTACK_INDEX].vsid);  in __slb_flush_and_rebolt()
160 		     /* Slot 1 - first VMALLOC segment */  in __slb_flush_and_rebolt()
162 		     /* Slot 2 - kernel stack */  in __slb_flush_and_rebolt()
184 	get_paca()->slb_cache_ptr = 0;  in slb_flush_and_rebolt()
235 	 * We need interrupts hard-disabled here, not just soft-disabled,  in switch_slb()
241 	offset = get_paca()->slb_cache_ptr;  in switch_slb()
247 			slbie_data = (unsigned long)get_paca()->slb_cache[i]  in switch_slb()
263 	get_paca()->slb_cache_ptr = 0;  in switch_slb()
294 	 * (which is actually addi) and cmpldi both take a 16-bit immediate  in patch_slb_encoding()
296 	 * ie. bits 16-31 (Big endian bit order) or the lower 16 bits.  in patch_slb_encoding()
331 	/* Prepare our SLB miss handler based on our page size */  in slb_initialize()
335 	get_paca()->vmalloc_sllp = SLB_VSID_KERNEL | vmalloc_llp;  in slb_initialize()
348 		pr_devel("SLB: linear  LLP = %04lx\n", linear_llp);  in slb_initialize()
349 		pr_devel("SLB: io      LLP = %04lx\n", io_llp);  in slb_initialize()
354 		pr_devel("SLB: vmemmap LLP = %04lx\n", vmemmap_llp);  in slb_initialize()
358 	get_paca()->stab_rr = SLB_NUM_BOLTED - 1;  in slb_initialize()
372 	 * get_paca()->kstack hasn't been initialized yet.  in slb_initialize()
377 	    (get_paca()->kstack & slb_esid_mask(mmu_kernel_ssize)) > PAGE_OFFSET)  in slb_initialize()
378 		create_shadowed_slbe(get_paca()->kstack,  in slb_initialize()
402 	index = get_paca()->stab_rr;  in insert_slb_entry()
405 	 * simple round-robin replacement of slb starting at SLB_NUM_BOLTED.  in insert_slb_entry()
407 	if (index < (mmu_slb_size - 1))  in insert_slb_entry()
412 	get_paca()->stab_rr = index;  in insert_slb_entry()
430 	slb_cache_index = get_paca()->slb_cache_ptr;  in insert_slb_entry()
436 		get_paca()->slb_cache[slb_cache_index++] = esid_data >> 28;  in insert_slb_entry()
437 		get_paca()->slb_cache_ptr++;  in insert_slb_entry()
444 		get_paca()->slb_cache_ptr = SLB_CACHE_ENTRIES + 1;  in insert_slb_entry()
450 	struct mm_struct *mm = current->mm;  in handle_multi_context_slb_miss()
465 	unsigned long ea = regs->dar;  in slb_miss_large_addr()
485 	if (ea >= current->mm->context.slb_addr_limit)  in slb_miss_large_addr()
488 	context = get_ea_context(&current->mm->context, ea);  in slb_miss_large_addr()