1 // SPDX-License-Identifier: GPL-2.0-or-later
34 #include <asm/r4k-timer.h>
35 #include <asm/mips-cps.h>
47 /* Number of TCs (or siblings in Intel speak) per CPU core */
51 /* representing the TCs (or siblings in Intel speak) of each logical CPU */
55 /* representing the core map of multi-core chips of each logical CPU */
140 	/* Re-calculate the mask */  in calculate_cpu_foreign_map()
361 	mp_ops->init_secondary();  in start_secondary()
396 	 * irq will be enabled in ->smp_finish(), enabling it too early  in start_secondary()
400 	mp_ops->smp_finish();  in start_secondary()
430 	current_thread_info()->cpu = 0;  in smp_prepare_cpus()
431 	mp_ops->prepare_cpus(max_cpus);  in smp_prepare_cpus()
444 	if (mp_ops->prepare_boot_cpu)  in smp_prepare_boot_cpu()
445 		mp_ops->prepare_boot_cpu();  in smp_prepare_boot_cpu()
454 	err = mp_ops->boot_secondary(cpu, tidle);  in __cpu_up()
458 	/* Wait for CPU to start and be ready to sync counters */  in __cpu_up()
462 		return -EIO;  in __cpu_up()
465 	/* Wait for CPU to finish startup & mark itself online before return */  in __cpu_up()
531  * multithreaded address spaces, inter-CPU interrupts have to be sent.
532  * Another case where inter-CPU interrupts are required is when the target
543 	if (atomic_read(&mm->mm_users) == 0)  in flush_tlb_mm()
550 		 * No need to worry about other CPUs - the ginvt in  in flush_tlb_mm()
553 	} else if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {  in flush_tlb_mm()
578 	local_flush_tlb_range(fd->vma, fd->addr1, fd->addr2);  in flush_tlb_range_ipi()
583 	struct mm_struct *mm = vma->vm_mm;  in flush_tlb_range()
603 	} else if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {  in flush_tlb_range()
614 		int exec = vma->vm_flags & VM_EXEC;  in flush_tlb_range()
635 	local_flush_tlb_kernel_range(fd->addr1, fd->addr2);  in flush_tlb_kernel_range_ipi()
652 	local_flush_tlb_page(fd->vma, fd->addr1);  in flush_tlb_page_ipi()
663 		write_c0_memorymapid(cpu_asid(0, vma->vm_mm));  in flush_tlb_page()
670 	} else if ((atomic_read(&vma->vm_mm->mm_users) != 1) ||  in flush_tlb_page()
671 		   (current->mm != vma->vm_mm)) {  in flush_tlb_page()
689 			if (cpu != smp_processor_id() && cpu_context(cpu, vma->vm_mm))  in flush_tlb_page()
690 				set_cpu_context(cpu, vma->vm_mm, 1);  in flush_tlb_page()
715 	if (mp_ops->cleanup_dead_cpu)  in arch_cpuhp_cleanup_dead_cpu()
716 		mp_ops->cleanup_dead_cpu(cpu);  in arch_cpuhp_cleanup_dead_cpu()