openwrt/target/linux/bcm27xx/patches-5.10/950-0068-cache-export-clean-and-invalidate.patch
Álvaro Fernández Rojas 8299d1f057 bcm27xx: add kernel 5.10 support
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted
patches, wireless patches and defconfig patches.

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 4B v1.1 4G
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2021-08-21 19:07:07 +02:00

54 lines
1.6 KiB
Diff

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