ARM: tlbflush.h: introduce TLB_BTB flag

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>

diff --git a/arch/arm/include/asm/tlbflush.h b/arch/arm/include/asm/tlbflush.h
index b543a05..ffedd24 100644 (file)
--- a/arch/arm/include/asm/tlbflush.h
+++ b/arch/arm/include/asm/tlbflush.h
@@ -39,6 +39,7 @@
 #define TLB_V6_D_ASID  (1 << 17)
 #define TLB_V6_I_ASID  (1 << 18)
 
+#define TLB_BTB                (1 << 28)
 #define TLB_L2CLEAN_FR (1 << 29)               /* Feroceon */
 #define TLB_DCLEAN     (1 << 30)
 #define TLB_WB         (1 << 31)
@@ -140,7 +141,7 @@
 # define v4wb_always_flags     (-1UL)
 #endif
 
-#define v6wbi_tlb_flags (TLB_WB | TLB_DCLEAN | \
+#define v6wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_BTB | \
                         TLB_V6_I_FULL | TLB_V6_D_FULL | \
                         TLB_V6_I_PAGE | TLB_V6_D_PAGE | \
                         TLB_V6_I_ASID | TLB_V6_D_ASID)
@@ -297,9 +298,7 @@ static inline void local_flush_tlb_all(void)
        if (tlb_flag(TLB_V4_I_FULL | TLB_V6_I_FULL))
                asm("mcr p15, 0, %0, c8, c5, 0" : : "r" (zero) : "cc");
 
-       if (tlb_flag(TLB_V6_I_FULL | TLB_V6_D_FULL |
-                    TLB_V6_I_PAGE | TLB_V6_D_PAGE |
-                    TLB_V6_I_ASID | TLB_V6_D_ASID)) {
+       if (tlb_flag(TLB_BTB)) {
                /* flush the branch target cache */
                asm("mcr p15, 0, %0, c7, c5, 6" : : "r" (zero) : "cc");
                dsb();
@@ -334,9 +333,7 @@ static inline void local_flush_tlb_mm(struct mm_struct *mm)
        if (tlb_flag(TLB_V6_I_ASID))
                asm("mcr p15, 0, %0, c8, c5, 2" : : "r" (asid) : "cc");
 
-       if (tlb_flag(TLB_V6_I_FULL | TLB_V6_D_FULL |
-                    TLB_V6_I_PAGE | TLB_V6_D_PAGE |
-                    TLB_V6_I_ASID | TLB_V6_D_ASID)) {
+       if (tlb_flag(TLB_BTB)) {
                /* flush the branch target cache */
                asm("mcr p15, 0, %0, c7, c5, 6" : : "r" (zero) : "cc");
                dsb();
@@ -374,9 +371,7 @@ local_flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
        if (tlb_flag(TLB_V6_I_PAGE))
                asm("mcr p15, 0, %0, c8, c5, 1" : : "r" (uaddr) : "cc");
 
-       if (tlb_flag(TLB_V6_I_FULL | TLB_V6_D_FULL |
-                    TLB_V6_I_PAGE | TLB_V6_D_PAGE |
-                    TLB_V6_I_ASID | TLB_V6_D_ASID)) {
+       if (tlb_flag(TLB_BTB)) {
                /* flush the branch target cache */
                asm("mcr p15, 0, %0, c7, c5, 6" : : "r" (zero) : "cc");
                dsb();
@@ -411,9 +406,7 @@ static inline void local_flush_tlb_kernel_page(unsigned long kaddr)
        if (tlb_flag(TLB_V6_I_PAGE))
                asm("mcr p15, 0, %0, c8, c5, 1" : : "r" (kaddr) : "cc");
 
-       if (tlb_flag(TLB_V6_I_FULL | TLB_V6_D_FULL |
-                    TLB_V6_I_PAGE | TLB_V6_D_PAGE |
-                    TLB_V6_I_ASID | TLB_V6_D_ASID)) {
+       if (tlb_flag(TLB_BTB)) {
                /* flush the branch target cache */
                asm("mcr p15, 0, %0, c7, c5, 6" : : "r" (zero) : "cc");
                dsb();