X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=arch%2Farm%2Fcpu%2Farmv8%2Fcache.S;h=ea845d1809e0944d30620756d792a8c73ed3a014;hb=819163c44e51e604d43ea7e0474b5e106c7ac088;hp=1c71a2f616da815e3e27021ff233d01b36580926;hpb=25828588412c1f951d72e1eda9e4320d422b7be5;p=oweals%2Fu-boot.git

diff --git a/arch/arm/cpu/armv8/cache.S b/arch/arm/cpu/armv8/cache.S
index 1c71a2f616..ea845d1809 100644
--- a/arch/arm/cpu/armv8/cache.S
+++ b/arch/arm/cpu/armv8/cache.S
@@ -14,15 +14,16 @@
 #include <linux/linkage.h>
 
 /*
- * void __asm_flush_dcache_level(level)
+ * void __asm_dcache_level(level)
  *
- * clean and invalidate one level cache.
+ * flush or invalidate one level cache.
  *
  * x0: cache level
- * x1: 0 flush & invalidate, 1 invalidate only
+ * x1: 0 clean & invalidate, 1 invalidate only
  * x2~x9: clobbered
  */
-ENTRY(__asm_flush_dcache_level)
+.pushsection .text.__asm_dcache_level, "ax"
+ENTRY(__asm_dcache_level)
 	lsl	x12, x0, #1
 	msr	csselr_el1, x12		/* select cache level */
 	isb				/* sync change of cssidr_el1 */
@@ -57,15 +58,17 @@ loop_way:
 	b.ge	loop_set
 
 	ret
-ENDPROC(__asm_flush_dcache_level)
+ENDPROC(__asm_dcache_level)
+.popsection
 
 /*
  * void __asm_flush_dcache_all(int invalidate_only)
  *
- * x0: 0 flush & invalidate, 1 invalidate only
+ * x0: 0 clean & invalidate, 1 invalidate only
  *
- * clean and invalidate all data cache by SET/WAY.
+ * flush or invalidate all data cache by SET/WAY.
  */
+.pushsection .text.__asm_dcache_all, "ax"
 ENTRY(__asm_dcache_all)
 	mov	x1, x0
 	dsb	sy
@@ -87,7 +90,7 @@ loop_level:
 	and	x12, x12, #7		/* x12 <- cache type */
 	cmp	x12, #2
 	b.lt	skip			/* skip if no cache or icache */
-	bl	__asm_flush_dcache_level	/* x1 = 0 flush, 1 invalidate */
+	bl	__asm_dcache_level	/* x1 = 0 flush, 1 invalidate */
 skip:
 	add	x0, x0, #1		/* increment cache level */
 	cmp	x11, x0
@@ -102,16 +105,21 @@ skip:
 finished:
 	ret
 ENDPROC(__asm_dcache_all)
+.popsection
 
+.pushsection .text.__asm_flush_dcache_all, "ax"
 ENTRY(__asm_flush_dcache_all)
 	mov	x0, #0
 	b	__asm_dcache_all
 ENDPROC(__asm_flush_dcache_all)
+.popsection
 
+.pushsection .text.__asm_invalidate_dcache_all, "ax"
 ENTRY(__asm_invalidate_dcache_all)
 	mov	x0, #0x1
 	b	__asm_dcache_all
 ENDPROC(__asm_invalidate_dcache_all)
+.popsection
 
 /*
  * void __asm_flush_dcache_range(start, end)
@@ -121,6 +129,7 @@ ENDPROC(__asm_invalidate_dcache_all)
  * x0: start address
  * x1: end address
  */
+.pushsection .text.__asm_flush_dcache_range, "ax"
 ENTRY(__asm_flush_dcache_range)
 	mrs	x3, ctr_el0
 	lsr	x3, x3, #16
@@ -138,29 +147,77 @@ ENTRY(__asm_flush_dcache_range)
 	dsb	sy
 	ret
 ENDPROC(__asm_flush_dcache_range)
+.popsection
+/*
+ * void __asm_invalidate_dcache_range(start, end)
+ *
+ * invalidate data cache in the range
+ *
+ * x0: start address
+ * x1: end address
+ */
+.pushsection .text.__asm_invalidate_dcache_range, "ax"
+ENTRY(__asm_invalidate_dcache_range)
+	mrs	x3, ctr_el0
+	ubfm	x3, x3, #16, #19
+	mov	x2, #4
+	lsl	x2, x2, x3		/* cache line size */
+
+	/* x2 <- minimal cache line size in cache system */
+	sub	x3, x2, #1
+	bic	x0, x0, x3
+1:	dc	ivac, x0	/* invalidate data or unified cache */
+	add	x0, x0, x2
+	cmp	x0, x1
+	b.lo	1b
+	dsb	sy
+	ret
+ENDPROC(__asm_invalidate_dcache_range)
+.popsection
 
 /*
  * void __asm_invalidate_icache_all(void)
  *
  * invalidate all tlb entries.
  */
+.pushsection .text.__asm_invalidate_icache_all, "ax"
 ENTRY(__asm_invalidate_icache_all)
 	ic	ialluis
 	isb	sy
 	ret
 ENDPROC(__asm_invalidate_icache_all)
+.popsection
+
+.pushsection .text.__asm_invalidate_l3_dcache, "ax"
+ENTRY(__asm_invalidate_l3_dcache)
+	mov	x0, #0			/* return status as success */
+	ret
+ENDPROC(__asm_invalidate_l3_dcache)
+	.weak	__asm_invalidate_l3_dcache
+.popsection
+
+.pushsection .text.__asm_flush_l3_dcache, "ax"
+ENTRY(__asm_flush_l3_dcache)
+	mov	x0, #0			/* return status as success */
+	ret
+ENDPROC(__asm_flush_l3_dcache)
+	.weak	__asm_flush_l3_dcache
+.popsection
 
-ENTRY(__asm_flush_l3_cache)
+.pushsection .text.__asm_invalidate_l3_icache, "ax"
+ENTRY(__asm_invalidate_l3_icache)
 	mov	x0, #0			/* return status as success */
 	ret
-ENDPROC(__asm_flush_l3_cache)
-	.weak	__asm_flush_l3_cache
+ENDPROC(__asm_invalidate_l3_icache)
+	.weak	__asm_invalidate_l3_icache
+.popsection
 
 /*
  * void __asm_switch_ttbr(ulong new_ttbr)
  *
  * Safely switches to a new page table.
  */
+.pushsection .text.__asm_switch_ttbr, "ax"
 ENTRY(__asm_switch_ttbr)
 	/* x2 = SCTLR (alive throghout the function) */
 	switch_el x4, 3f, 2f, 1f
@@ -208,3 +265,4 @@ ENTRY(__asm_switch_ttbr)
 
 	ret	x3
 ENDPROC(__asm_switch_ttbr)
+.popsection