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authorDavid S. Miller <davem@davemloft.net>2016-09-13 00:52:44 +0200
committerDavid S. Miller <davem@davemloft.net>2016-09-13 00:52:44 +0200
commitb20b378d49926b82c0a131492fa8842156e0e8a9 (patch)
tree7196847eea049a46442b05f99aee1dc571019381 /arch/arm64/mm/proc.S
parentnet: dsa: bcm_sf2: Get VLAN_PORT_MASK from b53_device (diff)
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff)
downloadlinux-b20b378d49926b82c0a131492fa8842156e0e8a9.tar.xz
linux-b20b378d49926b82c0a131492fa8842156e0e8a9.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/ethernet/mediatek/mtk_eth_soc.c drivers/net/ethernet/qlogic/qed/qed_dcbx.c drivers/net/phy/Kconfig All conflicts were cases of overlapping commits. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/arm64/mm/proc.S')
-rw-r--r--arch/arm64/mm/proc.S9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S
index 5bb61de23201..9d37e967fa19 100644
--- a/arch/arm64/mm/proc.S
+++ b/arch/arm64/mm/proc.S
@@ -100,7 +100,16 @@ ENTRY(cpu_do_resume)
msr tcr_el1, x8
msr vbar_el1, x9
+
+ /*
+ * __cpu_setup() cleared MDSCR_EL1.MDE and friends, before unmasking
+ * debug exceptions. By restoring MDSCR_EL1 here, we may take a debug
+ * exception. Mask them until local_dbg_restore() in cpu_suspend()
+ * resets them.
+ */
+ disable_dbg
msr mdscr_el1, x10
+
msr sctlr_el1, x12
/*
* Restore oslsr_el1 by writing oslar_el1