1 // SPDX-License-Identifier: GPL-2.0-or-later
33 #include <asm/r4k-timer.h>
34 #include <asm/mips-cps.h>
46 /* Number of TCs (or siblings in Intel speak) per CPU core */
50 /* representing the TCs (or siblings in Intel speak) of each logical CPU */
54 /* representing the core map of multi-core chips of each logical CPU */
139 	/* Re-calculate the mask */  in calculate_cpu_foreign_map()
360 	mp_ops->init_secondary();  in start_secondary()
395 	 * irq will be enabled in ->smp_finish(), enabling it too early  in start_secondary()
399 	mp_ops->smp_finish();  in start_secondary()
429 	current_thread_info()->cpu = 0;  in smp_prepare_cpus()
430 	mp_ops->prepare_cpus(max_cpus);  in smp_prepare_cpus()
443 	if (mp_ops->prepare_boot_cpu)  in smp_prepare_boot_cpu()
444 		mp_ops->prepare_boot_cpu();  in smp_prepare_boot_cpu()
453 	err = mp_ops->boot_secondary(cpu, tidle);  in __cpu_up()
457 	/* Wait for CPU to start and be ready to sync counters */  in __cpu_up()
461 		return -EIO;  in __cpu_up()
466 	/* Wait for CPU to finish startup & mark itself online before return */  in __cpu_up()
530  * multithreaded address spaces, inter-CPU interrupts have to be sent.
531  * Another case where inter-CPU interrupts are required is when the target
542 	if (atomic_read(&mm->mm_users) == 0)  in flush_tlb_mm()
549 		 * No need to worry about other CPUs - the ginvt in  in flush_tlb_mm()
552 	} else if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {  in flush_tlb_mm()
577 	local_flush_tlb_range(fd->vma, fd->addr1, fd->addr2);  in flush_tlb_range_ipi()
582 	struct mm_struct *mm = vma->vm_mm;  in flush_tlb_range()
602 	} else if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {  in flush_tlb_range()
613 		int exec = vma->vm_flags & VM_EXEC;  in flush_tlb_range()
634 	local_flush_tlb_kernel_range(fd->addr1, fd->addr2);  in flush_tlb_kernel_range_ipi()
651 	local_flush_tlb_page(fd->vma, fd->addr1);  in flush_tlb_page_ipi()
662 		write_c0_memorymapid(cpu_asid(0, vma->vm_mm));  in flush_tlb_page()
669 	} else if ((atomic_read(&vma->vm_mm->mm_users) != 1) ||  in flush_tlb_page()
670 		   (current->mm != vma->vm_mm)) {  in flush_tlb_page()
688 			if (cpu != smp_processor_id() && cpu_context(cpu, vma->vm_mm))  in flush_tlb_page()
689 				set_cpu_context(cpu, vma->vm_mm, 1);  in flush_tlb_page()
714 	if (mp_ops->cleanup_dead_cpu)  in arch_cpuhp_cleanup_dead_cpu()
715 		mp_ops->cleanup_dead_cpu(cpu);  in arch_cpuhp_cleanup_dead_cpu()