diff options
Diffstat (limited to 'arch/blackfin/kernel/setup.c')
| -rw-r--r-- | arch/blackfin/kernel/setup.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c index 76bf2ce..534227f 100644 --- a/arch/blackfin/kernel/setup.c +++ b/arch/blackfin/kernel/setup.c @@ -42,6 +42,7 @@ #include <asm/cacheflush.h> #include <asm/blackfin.h> #include <asm/cplbinit.h> +#include <asm/fixed_code.h> u16 _bfin_swrst; @@ -404,6 +405,27 @@ void __init setup_arch(char **cmdline_p) printk(KERN_INFO "Hardware Trace Enabled\n"); bfin_write_TBUFCTL(0x03); + + /* Copy atomic sequences to their fixed location, and sanity check that + these locations are the ones that we advertise to userspace. */ + memcpy((void *)FIXED_CODE_START, &fixed_code_start, + FIXED_CODE_END - FIXED_CODE_START); + BUG_ON((char *)&sigreturn_stub - (char *)&fixed_code_start + != SIGRETURN_STUB - FIXED_CODE_START); + BUG_ON((char *)&atomic_xchg32 - (char *)&fixed_code_start + != ATOMIC_XCHG32 - FIXED_CODE_START); + BUG_ON((char *)&atomic_cas32 - (char *)&fixed_code_start + != ATOMIC_CAS32 - FIXED_CODE_START); + BUG_ON((char *)&atomic_add32 - (char *)&fixed_code_start + != ATOMIC_ADD32 - FIXED_CODE_START); + BUG_ON((char *)&atomic_sub32 - (char *)&fixed_code_start + != ATOMIC_SUB32 - FIXED_CODE_START); + BUG_ON((char *)&atomic_ior32 - (char *)&fixed_code_start + != ATOMIC_IOR32 - FIXED_CODE_START); + BUG_ON((char *)&atomic_and32 - (char *)&fixed_code_start + != ATOMIC_AND32 - FIXED_CODE_START); + BUG_ON((char *)&atomic_xor32 - (char *)&fixed_code_start + != ATOMIC_XOR32 - FIXED_CODE_START); } static int __init topology_init(void) |