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// SPDX-License-Identifier: GPL-2.0-only
// Copyright 2024 Google LLC
// Author: Ard Biesheuvel <ardb@google.com>
#include <linux/types.h>
#include <asm/tlbflush.h>
#ifdef CONFIG_CPU_TLB_V4WT
void v4_flush_user_tlb_range(unsigned long, unsigned long, struct vm_area_struct *);
void v4_flush_kern_tlb_range(unsigned long, unsigned long);
struct cpu_tlb_fns v4_tlb_fns __initconst = {
.flush_user_range = v4_flush_user_tlb_range,
.flush_kern_range = v4_flush_kern_tlb_range,
.tlb_flags = v4_tlb_flags,
};
#endif
#ifdef CONFIG_CPU_TLB_V4WB
void v4wb_flush_user_tlb_range(unsigned long, unsigned long, struct vm_area_struct *);
void v4wb_flush_kern_tlb_range(unsigned long, unsigned long);
struct cpu_tlb_fns v4wb_tlb_fns __initconst = {
.flush_user_range = v4wb_flush_user_tlb_range,
.flush_kern_range = v4wb_flush_kern_tlb_range,
.tlb_flags = v4wb_tlb_flags,
};
#endif
#if defined(CONFIG_CPU_TLB_V4WBI) || defined(CONFIG_CPU_TLB_FEROCEON)
void v4wbi_flush_user_tlb_range(unsigned long, unsigned long, struct vm_area_struct *);
void v4wbi_flush_kern_tlb_range(unsigned long, unsigned long);
struct cpu_tlb_fns v4wbi_tlb_fns __initconst = {
.flush_user_range = v4wbi_flush_user_tlb_range,
.flush_kern_range = v4wbi_flush_kern_tlb_range,
.tlb_flags = v4wbi_tlb_flags,
};
#endif
#ifdef CONFIG_CPU_TLB_V6
void v6wbi_flush_user_tlb_range(unsigned long, unsigned long, struct vm_area_struct *);
void v6wbi_flush_kern_tlb_range(unsigned long, unsigned long);
struct cpu_tlb_fns v6wbi_tlb_fns __initconst = {
.flush_user_range = v6wbi_flush_user_tlb_range,
.flush_kern_range = v6wbi_flush_kern_tlb_range,
.tlb_flags = v6wbi_tlb_flags,
};
#endif
#ifdef CONFIG_CPU_TLB_V7
void v7wbi_flush_user_tlb_range(unsigned long, unsigned long, struct vm_area_struct *);
void v7wbi_flush_kern_tlb_range(unsigned long, unsigned long);
struct cpu_tlb_fns v7wbi_tlb_fns __initconst = {
.flush_user_range = v7wbi_flush_user_tlb_range,
.flush_kern_range = v7wbi_flush_kern_tlb_range,
.tlb_flags = IS_ENABLED(CONFIG_SMP) ? v7wbi_tlb_flags_smp
: v7wbi_tlb_flags_up,
};
#ifdef CONFIG_SMP_ON_UP
/* This will be run-time patched so the offset better be right */
static_assert(offsetof(struct cpu_tlb_fns, tlb_flags) == 8);
asm(" .pushsection \".alt.smp.init\", \"a\" \n" \
" .align 2 \n" \
" .long v7wbi_tlb_fns + 8 - . \n" \
" .long " __stringify(v7wbi_tlb_flags_up) " \n" \
" .popsection \n");
#endif
#endif
#ifdef CONFIG_CPU_TLB_FA
void fa_flush_user_tlb_range(unsigned long, unsigned long, struct vm_area_struct *);
void fa_flush_kern_tlb_range(unsigned long, unsigned long);
struct cpu_tlb_fns fa_tlb_fns __initconst = {
.flush_user_range = fa_flush_user_tlb_range,
.flush_kern_range = fa_flush_kern_tlb_range,
.tlb_flags = fa_tlb_flags,
};
#endif
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