diff options
| -rw-r--r-- | arch/arm/mm/proc-v7-2level.S | 4 | ||||
| -rw-r--r-- | arch/arm/mm/proc-v7-3level.S | 6 | ||||
| -rw-r--r-- | arch/arm/mm/proc-v7.S | 30 |
3 files changed, 23 insertions, 17 deletions
diff --git a/arch/arm/mm/proc-v7-2level.S b/arch/arm/mm/proc-v7-2level.S index c6141a5435c3..0422e58b74e8 100644 --- a/arch/arm/mm/proc-v7-2level.S +++ b/arch/arm/mm/proc-v7-2level.S @@ -41,7 +41,7 @@ * even on Cortex-A8 revisions not affected by 430973. * If IBE is not set, the flush BTAC/BTB won't do anything. */ -ENTRY(cpu_ca8_switch_mm) +ENTRY(cpu_v7_btbinv_switch_mm) #ifdef CONFIG_MMU mov r2, #0 mcr p15, 0, r2, c7, c5, 6 @ flush BTAC/BTB @@ -66,7 +66,7 @@ ENTRY(cpu_v7_switch_mm) #endif bx lr ENDPROC(cpu_v7_switch_mm) -ENDPROC(cpu_ca8_switch_mm) +ENDPROC(cpu_v7_btbinv_switch_mm) /* * cpu_v7_set_pte_ext(ptep, pte) diff --git a/arch/arm/mm/proc-v7-3level.S b/arch/arm/mm/proc-v7-3level.S index 5e5720e8bc5f..1537c6d83b2a 100644 --- a/arch/arm/mm/proc-v7-3level.S +++ b/arch/arm/mm/proc-v7-3level.S @@ -54,6 +54,11 @@ * Set the translation table base pointer to be pgd_phys (physical address of * the new TTB). */ +ENTRY(cpu_v7_btbinv_switch_mm) +#ifdef CONFIG_MMU + mov r2, #0 + mcr p15, 0, r2, c7, c5, 6 @ flush BTAC/BTB +#endif ENTRY(cpu_v7_switch_mm) #ifdef CONFIG_MMU mmid r2, r2 @@ -64,6 +69,7 @@ ENTRY(cpu_v7_switch_mm) #endif ret lr ENDPROC(cpu_v7_switch_mm) +ENDPROC(cpu_v7_btbinv_switch_mm) #ifdef __ARMEB__ #define rl r3 diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index d00d52c9de3e..379d1781448f 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -154,18 +154,18 @@ ENDPROC(cpu_v7_do_resume) #endif /* - * Cortex-A8 + * Cortex-A8/A12/A17 that require a BTB invalidation on switch_mm */ - globl_equ cpu_ca8_proc_init, cpu_v7_proc_init - globl_equ cpu_ca8_proc_fin, cpu_v7_proc_fin - globl_equ cpu_ca8_reset, cpu_v7_reset - globl_equ cpu_ca8_do_idle, cpu_v7_do_idle - globl_equ cpu_ca8_dcache_clean_area, cpu_v7_dcache_clean_area - globl_equ cpu_ca8_set_pte_ext, cpu_v7_set_pte_ext - globl_equ cpu_ca8_suspend_size, cpu_v7_suspend_size + globl_equ cpu_v7_btbinv_proc_init, cpu_v7_proc_init + globl_equ cpu_v7_btbinv_proc_fin, cpu_v7_proc_fin + globl_equ cpu_v7_btbinv_reset, cpu_v7_reset + globl_equ cpu_v7_btbinv_do_idle, cpu_v7_do_idle + globl_equ cpu_v7_btbinv_dcache_clean_area, cpu_v7_dcache_clean_area + globl_equ cpu_v7_btbinv_set_pte_ext, cpu_v7_set_pte_ext + globl_equ cpu_v7_btbinv_suspend_size, cpu_v7_suspend_size #ifdef CONFIG_ARM_CPU_SUSPEND - globl_equ cpu_ca8_do_suspend, cpu_v7_do_suspend - globl_equ cpu_ca8_do_resume, cpu_v7_do_resume + globl_equ cpu_v7_btbinv_do_suspend, cpu_v7_do_suspend + globl_equ cpu_v7_btbinv_do_resume, cpu_v7_do_resume #endif /* @@ -176,7 +176,7 @@ ENDPROC(cpu_v7_do_resume) globl_equ cpu_ca9mp_reset, cpu_v7_reset globl_equ cpu_ca9mp_do_idle, cpu_v7_do_idle globl_equ cpu_ca9mp_dcache_clean_area, cpu_v7_dcache_clean_area - globl_equ cpu_ca9mp_switch_mm, cpu_v7_switch_mm + globl_equ cpu_ca9mp_switch_mm, cpu_v7_btbinv_switch_mm globl_equ cpu_ca9mp_set_pte_ext, cpu_v7_set_pte_ext .globl cpu_ca9mp_suspend_size .equ cpu_ca9mp_suspend_size, cpu_v7_suspend_size + 4 * 2 @@ -543,8 +543,8 @@ __v7_setup_stack: @ define struct processor (see <asm/proc-fns.h> and proc-macros.S) define_processor_functions v7, dabort=v7_early_abort, pabort=v7_pabort, suspend=1 + define_processor_functions v7_btbinv, dabort=v7_early_abort, pabort=v7_pabort, suspend=1 #ifndef CONFIG_ARM_LPAE - define_processor_functions ca8, dabort=v7_early_abort, pabort=v7_pabort, suspend=1 define_processor_functions ca9mp, dabort=v7_early_abort, pabort=v7_pabort, suspend=1 #endif #ifdef CONFIG_CPU_PJ4B @@ -609,7 +609,7 @@ __v7_ca9mp_proc_info: __v7_ca8_proc_info: .long 0x410fc080 .long 0xff0ffff0 - __v7_proc __v7_ca8_proc_info, __v7_setup, proc_fns = ca8_processor_functions + __v7_proc __v7_ca8_proc_info, __v7_setup, proc_fns = v7_btbinv_processor_functions .size __v7_ca8_proc_info, . - __v7_ca8_proc_info #endif /* CONFIG_ARM_LPAE */ @@ -653,7 +653,7 @@ __v7_ca7mp_proc_info: __v7_ca12mp_proc_info: .long 0x410fc0d0 .long 0xff0ffff0 - __v7_proc __v7_ca12mp_proc_info, __v7_ca12mp_setup + __v7_proc __v7_ca12mp_proc_info, __v7_ca12mp_setup, proc_fns = v7_btbinv_processor_functions .size __v7_ca12mp_proc_info, . - __v7_ca12mp_proc_info /* @@ -683,7 +683,7 @@ __v7_b15mp_proc_info: __v7_ca17mp_proc_info: .long 0x410fc0e0 .long 0xff0ffff0 - __v7_proc __v7_ca17mp_proc_info, __v7_ca17mp_setup + __v7_proc __v7_ca17mp_proc_info, __v7_ca17mp_setup, proc_fns = v7_btbinv_processor_functions .size __v7_ca17mp_proc_info, . - __v7_ca17mp_proc_info /* |