This is a note to let you know that I've just added the patch titled
crypto: caam - fix pointer size for AArch64 boot loader, AArch32 kernel
to the 4.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
crypto-caam-fix-pointer-size-for-aarch64-boot-loader-aarch32-kernel.patch
and it can be found in the queue-4.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 39eaf759466f4e3fbeaa39075512f4f345dffdc8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Horia=20Geant=C4=83?= <horia.geanta@xxxxxxx>
Date: Mon, 5 Dec 2016 11:06:58 +0200
Subject: crypto: caam - fix pointer size for AArch64 boot loader, AArch32 kernel
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From: Horia Geantă <horia.geanta@xxxxxxx>
commit 39eaf759466f4e3fbeaa39075512f4f345dffdc8 upstream.
Start with a clean slate before dealing with bit 16 (pointer size)
of Master Configuration Register.
This fixes the case of AArch64 boot loader + AArch32 kernel, when
the boot loader might set MCFGR[PS] and kernel would fail to clear it.
Reported-by: Alison Wang <alison.wang@xxxxxxx>
Signed-off-by: Horia Geantă <horia.geanta@xxxxxxx>
Reviewed-By: Alison Wang <Alison.wang@xxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/crypto/caam/ctrl.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -557,8 +557,9 @@ static int caam_probe(struct platform_de
* Enable DECO watchdogs and, if this is a PHYS_ADDR_T_64BIT kernel,
* long pointers in master configuration register
*/
- clrsetbits_32(&ctrl->mcr, MCFGR_AWCACHE_MASK, MCFGR_AWCACHE_CACH |
- MCFGR_AWCACHE_BUFF | MCFGR_WDENABLE | MCFGR_LARGE_BURST |
+ clrsetbits_32(&ctrl->mcr, MCFGR_AWCACHE_MASK | MCFGR_LONG_PTR,
+ MCFGR_AWCACHE_CACH | MCFGR_AWCACHE_BUFF |
+ MCFGR_WDENABLE | MCFGR_LARGE_BURST |
(sizeof(dma_addr_t) == sizeof(u64) ? MCFGR_LONG_PTR : 0));
/*
Patches currently in stable-queue which might be from horia.geanta@xxxxxxx are
queue-4.8/crypto-caam-fix-pointer-size-for-aarch64-boot-loader-aarch32-kernel.patch
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