From f27bb139c3876806a2c82e979d2dbbece44c66df Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Mon, 5 Mar 2012 11:49:33 +0000 Subject: arm64: Miscellaneous library functions This patch adds udelay, memory and bit operations together with the ksyms exports. Signed-off-by: Marc Zyngier Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas Acked-by: Tony Lindgren Acked-by: Nicolas Pitre Acked-by: Olof Johansson Acked-by: Santosh Shilimkar --- arch/arm64/lib/bitops.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 arch/arm64/lib/bitops.c (limited to 'arch/arm64/lib/bitops.c') diff --git a/arch/arm64/lib/bitops.c b/arch/arm64/lib/bitops.c new file mode 100644 index 000000000000..aa4965e60acc --- /dev/null +++ b/arch/arm64/lib/bitops.c @@ -0,0 +1,25 @@ +/* + * Copyright (C) 2012 ARM Limited + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include + +#ifdef CONFIG_SMP +arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned = { + [0 ... (ATOMIC_HASH_SIZE-1)] = __ARCH_SPIN_LOCK_UNLOCKED +}; +#endif -- cgit v1.2.3