--- zzzz-none-000/linux-4.4.271/arch/arm/mm/proc-v7.S	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/arch/arm/mm/proc-v7.S	2023-04-19 10:22:27.000000000 +0000
@@ -536,6 +536,22 @@
 #endif
 	define_processor_functions ca8, dabort=v7_early_abort, pabort=v7_pabort, suspend=1, bugs=cpu_v7_ca8_ibe
 
+/*
+ * Qualcomm Technologies Inc. Krait processors. - need to invalidate Branch prediction
+ * on switch_mm
+ */
+	globl_equ	cpu_krait_proc_init,	cpu_v7_proc_init
+	globl_equ	cpu_krait_proc_fin,	cpu_v7_proc_fin
+	globl_equ	cpu_krait_reset,		cpu_v7_reset
+	globl_equ	cpu_krait_do_idle,	cpu_v7_do_idle
+	globl_equ	cpu_krait_dcache_clean_area, cpu_v7_dcache_clean_area
+	globl_equ	cpu_krait_set_pte_ext,	cpu_v7_set_pte_ext
+	globl_equ	cpu_krait_suspend_size,	cpu_v7_suspend_size
+#ifdef CONFIG_ARM_CPU_SUSPEND
+	globl_equ	cpu_krait_do_suspend,	cpu_v7_do_suspend
+	globl_equ	cpu_krait_do_resume,	cpu_v7_do_resume
+#endif
+
 	@ Cortex-A9 - needs more registers preserved across suspend/resume
 	@ and bpiall switch_mm for hardening
 	globl_equ	cpu_ca9mp_proc_init,	cpu_v7_proc_init
@@ -571,6 +587,7 @@
 #ifdef CONFIG_CPU_PJ4B
 	define_processor_functions pj4b, dabort=v7_early_abort, pabort=v7_pabort, suspend=1
 #endif
+	define_processor_functions krait, dabort=v7_early_abort, pabort=v7_pabort, suspend=1
 
 	.section ".rodata"
 
@@ -736,7 +753,7 @@
 	 * do support them. They also don't indicate support for fused multiply
 	 * instructions even though they actually do support them.
 	 */
-	__v7_proc __krait_proc_info, __v7_setup, hwcaps = HWCAP_IDIV | HWCAP_VFPv4
+	__v7_proc __krait_proc_info, __v7_setup, hwcaps = HWCAP_IDIV | HWCAP_VFPv4, proc_fns = krait_processor_functions
 	.size	__krait_proc_info, . - __krait_proc_info
 
 	/*