openwrt/target/linux/bcm27xx/patches-5.10/950-0068-cache-export-clean-and-invalidate.patch

From c9cb22efe558ee7fb1f30deb19dfe7b7bfe1f369 Mon Sep 17 00:00:00 2001
From: popcornmix <popcornmix@gmail.com>
Date: Fri, 25 Aug 2017 19:18:13 +0100
Subject: [PATCH] cache: export clean and invalidate

hack: cache: Fix linker error
---
 arch/arm/mm/cache-v6.S | 4 ++--
 arch/arm/mm/cache-v7.S | 6 ++++--
 2 files changed, 6 insertions(+), 4 deletions(-)

--- a/arch/arm/mm/cache-v6.S
+++ b/arch/arm/mm/cache-v6.S
@@ -198,7 +198,7 @@ ENTRY(v6_flush_kern_dcache_area)
  *	- start   - virtual start address of region
  *	- end     - virtual end address of region
  */
-v6_dma_inv_range:
+ENTRY(v6_dma_inv_range)
 #ifdef CONFIG_DMA_CACHE_RWFO
 	ldrb	r2, [r0]			@ read for ownership
 	strb	r2, [r0]			@ write for ownership
@@ -243,7 +243,7 @@ v6_dma_inv_range:
  *	- start   - virtual start address of region
  *	- end     - virtual end address of region
  */
-v6_dma_clean_range:
+ENTRY(v6_dma_clean_range)
 	bic	r0, r0, #D_CACHE_LINE_SIZE - 1
 1:
 #ifdef CONFIG_DMA_CACHE_RWFO
--- a/arch/arm/mm/cache-v7.S
+++ b/arch/arm/mm/cache-v7.S
@@ -363,7 +363,8 @@ ENDPROC(v7_flush_kern_dcache_area)
  *	- start   - virtual start address of region
  *	- end     - virtual end address of region
  */
-v7_dma_inv_range:
+ENTRY(b15_dma_inv_range)
+ENTRY(v7_dma_inv_range)
 	dcache_line_size r2, r3
 	sub	r3, r2, #1
 	tst	r0, r3
@@ -393,7 +394,8 @@ ENDPROC(v7_dma_inv_range)
  *	- start   - virtual start address of region
  *	- end     - virtual end address of region
  */
-v7_dma_clean_range:
+ENTRY(b15_dma_clean_range)
+ENTRY(v7_dma_clean_range)
 	dcache_line_size r2, r3
 	sub	r3, r2, #1
 	bic	r0, r0, r3