David Howells 00460f41ff FRV: Implement atomic64_t ... Implement atomic64_t and its ops for FRV. Tested with the following patch: diff --git a/arch/frv/kernel/setup.c b/arch/frv/kernel/setup.c index 55e4fab..086d50d 100644 --- a/arch/frv/kernel/setup.c +++ b/arch/frv/kernel/setup.c @@ -746,6 +746,52 @@ static void __init parse_cmdline_early(char *cmdline) } /* end parse_cmdline_early() */ +static atomic64_t xxx; + +static void test_atomic64(void) +{ + atomic64_set(&xxx, 0x12300000023LL); + + mb(); + BUG_ON(atomic64_read(&xxx) != 0x12300000023LL); + mb(); + if (atomic64_inc_return(&xxx) != 0x12300000024LL) + BUG(); + mb(); + BUG_ON(atomic64_read(&xxx) != 0x12300000024LL); + mb(); + if (atomic64_sub_return(0x36900000050LL, &xxx) != -0x2460000002cLL) + BUG(); + mb(); + BUG_ON(atomic64_read(&xxx) != -0x2460000002cLL); + mb(); + if (atomic64_dec_return(&xxx) != -0x2460000002dLL) + BUG(); + mb(); + BUG_ON(atomic64_read(&xxx) != -0x2460000002dLL); + mb(); + if (atomic64_add_return(0x36800000001LL, &xxx) != 0x121ffffffd4LL) + BUG(); + mb(); + BUG_ON(atomic64_read(&xxx) != 0x121ffffffd4LL); + mb(); + if (atomic64_cmpxchg(&xxx, 0x123456789abcdefLL, 0x121ffffffd4LL) != 0x121ffffffd4LL) + BUG(); + mb(); + BUG_ON(atomic64_read(&xxx) != 0x121ffffffd4LL); + mb(); + if (atomic64_cmpxchg(&xxx, 0x121ffffffd4LL, 0x123456789abcdefLL) != 0x121ffffffd4LL) + BUG(); + mb(); + BUG_ON(atomic64_read(&xxx) != 0x123456789abcdefLL); + mb(); + if (atomic64_xchg(&xxx, 0xabcdef123456789LL) != 0x123456789abcdefLL) + BUG(); + mb(); + BUG_ON(atomic64_read(&xxx) != 0xabcdef123456789LL); + mb(); +} + /*****************************************************************************/ /* * @@ -845,6 +891,8 @@ void __init setup_arch(char **cmdline_p) // asm volatile("movgs %0,timerd" :: "r"(10000000)); // __set_HSR(0, __get_HSR(0) | HSR0_ETMD); + test_atomic64(); + } /* end setup_arch() */ #if 0 Note that this doesn't cover all the trivial wrappers, but does cover all the substantial implementations. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-07-01 19:38:09 -07:00
..
boot	FRV: Drop 'TOPDIR' from Makefiles	2008-01-28 23:14:37 +01:00
include/asm	FRV: Implement atomic64_t	2009-07-01 19:38:09 -07:00
kernel	FRV: Implement atomic64_t	2009-07-01 19:38:09 -07:00
lib	FRV: Implement atomic64_t	2009-07-01 19:38:09 -07:00
mb93090-mb00	FRV: BUG to BUG_ON changes	2009-06-11 09:01:26 -07:00
mm	Move FAULT_FLAG_xyz into handle_mm_fault() callers	2009-06-21 13:08:22 -07:00
defconfig	[PATCH] FRV: Add defconfig	2005-07-07 18:23:42 -07:00
Kconfig	FRV: Implement new-style ptrace	2009-06-11 09:01:26 -07:00
Kconfig.debug	[PATCH] frv: drop unsupported debugging features	2006-01-08 20:13:36 -08:00
Makefile	kbuild: enable 'make AFLAGS=...' to add additional options to AS	2007-10-15 21:59:31 +02:00