--- zzzz-none-000/linux-3.10.107/arch/arm/mm/proc-macros.S	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/arm/mm/proc-macros.S	2021-02-04 17:41:59.000000000 +0000
@@ -32,6 +32,9 @@
 	.macro	act_mm, rd
 	bic	\rd, sp, #8128
 	bic	\rd, \rd, #63
+#ifdef CONFIG_KASAN
+	bic	\rd, \rd, #8192
+#endif
 	ldr	\rd, [\rd, #TI_TASK]
 	ldr	\rd, [\rd, #TSK_ACTIVE_MM]
 	.endm
@@ -98,7 +101,7 @@
 #endif
 #if !defined (CONFIG_ARM_LPAE) && \
 	(L_PTE_XN+L_PTE_USER+L_PTE_RDONLY+L_PTE_DIRTY+L_PTE_YOUNG+\
-	 L_PTE_FILE+L_PTE_PRESENT) > L_PTE_SHARED
+	 L_PTE_PRESENT) > L_PTE_SHARED
 #error Invalid Linux PTE bit settings
 #endif
 #endif	/* CONFIG_MMU */
@@ -279,7 +282,7 @@
 
 	.if \suspend
 	.word	cpu_\name\()_suspend_size
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_ARM_CPU_SUSPEND
 	.word	cpu_\name\()_do_suspend
 	.word	cpu_\name\()_do_resume
 #else
@@ -309,6 +312,8 @@
 	.long	\name\()_flush_kern_dcache_area
 	.long	\name\()_dma_map_area
 	.long	\name\()_dma_unmap_area
+	.long   \name\()_dma_inv_range
+	.long   \name\()_dma_clean_range
 	.long	\name\()_dma_flush_range
 	.size	\name\()_cache_fns, . - \name\()_cache_fns
 .endm
@@ -331,3 +336,31 @@
 	.globl	\x
 	.equ	\x, \y
 .endm
+
+.macro	initfn, func, base
+	.long	\func - \base
+.endm
+
+	/*
+	 * Macro to calculate the log2 size for the protection region
+	 * registers. This calculates rd = log2(size) - 1.  tmp must
+	 * not be the same register as rd.
+	 */
+.macro	pr_sz, rd, size, tmp
+	mov	\tmp, \size, lsr #12
+	mov	\rd, #11
+1:	movs	\tmp, \tmp, lsr #1
+	addne	\rd, \rd, #1
+	bne	1b
+.endm
+
+	/*
+	 * Macro to generate a protection region register value
+	 * given a pre-masked address, size, and enable bit.
+	 * Corrupts size.
+	 */
+.macro	pr_val, dest, addr, size, enable
+	pr_sz	\dest, \size, \size		@ calculate log2(size) - 1
+	orr	\dest, \addr, \dest, lsl #1	@ mask in the region size
+	orr	\dest, \dest, \enable
+.endm