| // SPDX-License-Identifier: GPL-2.0 |
| // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd. |
| #include <linux/bitops.h> |
| #include <asm/mmu_context.h> |
| #include <asm/tlbflush.h> |
| static DEFINE_PER_CPU(atomic64_t, active_asids); |
| static DEFINE_PER_CPU(u64, reserved_asids); |
| struct asid_info asid_info; |
| void check_and_switch_context(struct mm_struct *mm, unsigned int cpu) |
| asid_check_context(&asid_info, &mm->context.asid, cpu, mm); |
| static void asid_flush_cpu_ctxt(void) |
| static int asids_init(void) |
| BUG_ON(((1 << CONFIG_CPU_ASID_BITS) - 1) <= num_possible_cpus()); |
| if (asid_allocator_init(&asid_info, CONFIG_CPU_ASID_BITS, 1, |
| panic("Unable to initialize ASID allocator for %lu ASIDs\n", |
| asid_info.active = &active_asids; |
| asid_info.reserved = &reserved_asids; |
| pr_info("ASID allocator initialised with %lu entries\n", |
| NUM_CTXT_ASIDS(&asid_info)); |
| early_initcall(asids_init); |