diff options
| author |   José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
|---|---|---|
| committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
| commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
| tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/arch/s390/include/asm/cmpxchg.h | |
| parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) | |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/arch/s390/include/asm/cmpxchg.h')
| -rw-r--r-- | kernel/arch/s390/include/asm/cmpxchg.h | 32 |
1 files changed, 3 insertions, 29 deletions
diff --git a/kernel/arch/s390/include/asm/cmpxchg.h b/kernel/arch/s390/include/asm/cmpxchg.h index 4eadec466..24ea6948e 100644 --- a/kernel/arch/s390/include/asm/cmpxchg.h +++ b/kernel/arch/s390/include/asm/cmpxchg.h @@ -32,9 +32,7 @@ __old; \ }) -#define __HAVE_ARCH_CMPXCHG - -#define __cmpxchg_double_op(p1, p2, o1, o2, n1, n2, insn) \ +#define __cmpxchg_double(p1, p2, o1, o2, n1, n2) \ ({ \ register __typeof__(*(p1)) __old1 asm("2") = (o1); \ register __typeof__(*(p2)) __old2 asm("3") = (o2); \ @@ -42,7 +40,7 @@ register __typeof__(*(p2)) __new2 asm("5") = (n2); \ int cc; \ asm volatile( \ - insn " %[old],%[new],%[ptr]\n" \ + " cdsg %[old],%[new],%[ptr]\n" \ " ipm %[cc]\n" \ " srl %[cc],28" \ : [cc] "=d" (cc), [old] "+d" (__old1), "+d" (__old2) \ @@ -52,30 +50,6 @@ !cc; \ }) -#define __cmpxchg_double_4(p1, p2, o1, o2, n1, n2) \ - __cmpxchg_double_op(p1, p2, o1, o2, n1, n2, "cds") - -#define __cmpxchg_double_8(p1, p2, o1, o2, n1, n2) \ - __cmpxchg_double_op(p1, p2, o1, o2, n1, n2, "cdsg") - -extern void __cmpxchg_double_called_with_bad_pointer(void); - -#define __cmpxchg_double(p1, p2, o1, o2, n1, n2) \ -({ \ - int __ret; \ - switch (sizeof(*(p1))) { \ - case 4: \ - __ret = __cmpxchg_double_4(p1, p2, o1, o2, n1, n2); \ - break; \ - case 8: \ - __ret = __cmpxchg_double_8(p1, p2, o1, o2, n1, n2); \ - break; \ - default: \ - __cmpxchg_double_called_with_bad_pointer(); \ - } \ - __ret; \ -}) - #define cmpxchg_double(p1, p2, o1, o2, n1, n2) \ ({ \ __typeof__(p1) __p1 = (p1); \ @@ -83,7 +57,7 @@ extern void __cmpxchg_double_called_with_bad_pointer(void); BUILD_BUG_ON(sizeof(*(p1)) != sizeof(long)); \ BUILD_BUG_ON(sizeof(*(p2)) != sizeof(long)); \ VM_BUG_ON((unsigned long)((__p1) + 1) != (unsigned long)(__p2));\ - __cmpxchg_double_8(__p1, __p2, o1, o2, n1, n2); \ + __cmpxchg_double(__p1, __p2, o1, o2, n1, n2); \ }) #define system_has_cmpxchg_double() 1 |