| Message ID | 1345715809-12312-1-git-send-email-will.deacon@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/arm/mm/context.c b/arch/arm/mm/context.c index 119bc52..4e07eec 100644 --- a/arch/arm/mm/context.c +++ b/arch/arm/mm/context.c @@ -63,10 +63,11 @@ static int contextidr_notifier(struct notifier_block *unused, unsigned long cmd, pid = task_pid_nr(thread->task) << ASID_BITS; asm volatile( " mrc p15, 0, %0, c13, c0, 1\n" - " bfi %1, %0, #0, %2\n" - " mcr p15, 0, %1, c13, c0, 1\n" + " and %0, %0, %2\n" + " orr %0, %0, %1\n" + " mcr p15, 0, %0, c13, c0, 1\n" : "=r" (contextidr), "+r" (pid) - : "I" (ASID_BITS)); + : "I" (~ASID_MASK)); isb(); return NOTIFY_OK;
The bfi instruction is not available on ARMv6, so instead use an and/orr sequence in the contextidr_notifier. This gets rid of the assembler error: Assembler messages: Error: selected processor does not support ARM mode `bfi r3,r2,#0,#8' Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Will Deacon <will.deacon@arm.com> --- Tested on my Integrator/CP w/ an 1136 tile. arch/arm/mm/context.c | 7 ++++--- 1 files changed, 4 insertions(+), 3 deletions(-)