From 2f7c68cb55ecb7331f2381deb497c27155f32faf Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 03 Jan 2024 09:43:39 +0000
Subject: [PATCH] update kernel to 5.10.198
---
kernel/arch/mips/bmips/dma.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/kernel/arch/mips/bmips/dma.c b/kernel/arch/mips/bmips/dma.c
index 49061b8..daef44f 100644
--- a/kernel/arch/mips/bmips/dma.c
+++ b/kernel/arch/mips/bmips/dma.c
@@ -64,6 +64,8 @@
return dma_addr;
}
+bool bmips_rac_flush_disable;
+
void arch_sync_dma_for_cpu_all(void)
{
void __iomem *cbr = BMIPS_GET_CBR();
@@ -74,6 +76,9 @@
boot_cpu_type() != CPU_BMIPS4380)
return;
+ if (unlikely(bmips_rac_flush_disable))
+ return;
+
/* Flush stale data out of the readahead cache */
cfg = __raw_readl(cbr + BMIPS_RAC_CONFIG);
__raw_writel(cfg | 0x100, cbr + BMIPS_RAC_CONFIG);
--
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