diff options
Diffstat (limited to 'arch/arm64/mm/proc.S')
| -rw-r--r-- | arch/arm64/mm/proc.S | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S index 7103027b4e64..1b871f141eb4 100644 --- a/arch/arm64/mm/proc.S +++ b/arch/arm64/mm/proc.S @@ -143,34 +143,6 @@ SYM_FUNC_END(cpu_do_resume) .popsection #endif -/* - * cpu_do_switch_mm(pgd_phys, tsk) - * - * Set the translation table base pointer to be pgd_phys. - * - * - pgd_phys - physical address of new TTB - */ -SYM_FUNC_START(cpu_do_switch_mm) - mrs x2, ttbr1_el1 - mmid x1, x1 // get mm->context.id - phys_to_ttbr x3, x0 - -alternative_if ARM64_HAS_CNP - cbz x1, 1f // skip CNP for reserved ASID - orr x3, x3, #TTBR_CNP_BIT -1: -alternative_else_nop_endif -#ifdef CONFIG_ARM64_SW_TTBR0_PAN - bfi x3, x1, #48, #16 // set the ASID field in TTBR0 -#endif - bfi x2, x1, #48, #16 // set the ASID - msr ttbr1_el1, x2 // in TTBR1 (since TCR.A1 is set) - isb - msr ttbr0_el1, x3 // now update TTBR0 - isb - b post_ttbr_update_workaround // Back to C code... -SYM_FUNC_END(cpu_do_switch_mm) - .pushsection ".idmap.text", "awx" .macro __idmap_cpu_set_reserved_ttbr1, tmp1, tmp2 |