From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Thu, 20 May 2010 07:33:38 +0000 (+0100)
Subject: ARM: 6139/1: ARMv7: Use the Inner Shareable I-cache on MP
X-Git-Tag: firefly_0821_release~9833^2~1878^2^2~13
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a901ff715d53c109821cbbd9d7ea1f2a311646a9;p=firefly-linux-kernel-4.4.55.git

ARM: 6139/1: ARMv7: Use the Inner Shareable I-cache on MP

This patch fixes the flush_cache_all for ARMv7 SMP.It was
missing from commit b8349b569aae661dea9d59d7d2ee587ccea3336c

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: <stable@kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S
index 06a90dcfc60a..37c8157e116e 100644
--- a/arch/arm/mm/cache-v7.S
+++ b/arch/arm/mm/cache-v7.S
@@ -91,7 +91,11 @@ ENTRY(v7_flush_kern_cache_all)
  THUMB(	stmfd	sp!, {r4-r7, r9-r11, lr}	)
 	bl	v7_flush_dcache_all
 	mov	r0, #0
+#ifdef CONFIG_SMP
+	mcr	p15, 0, r0, c7, c1, 0		@ invalidate I-cache inner shareable
+#else
 	mcr	p15, 0, r0, c7, c5, 0		@ I+BTB cache invalidate
+#endif
  ARM(	ldmfd	sp!, {r4-r5, r7, r9-r11, lr}	)
  THUMB(	ldmfd	sp!, {r4-r7, r9-r11, lr}	)
 	mov	pc, lr