diff options
| author | Ard Biesheuvel <[email protected]> | 2023-03-20 00:07:20 +0100 |
|---|---|---|
| committer | Ard Biesheuvel <[email protected]> | 2023-05-17 15:08:22 +0200 |
| commit | 303d6da167dcbc3dd89adf3ca4e36c369950ed01 (patch) | |
| tree | 6041481a3b42a3ec4c2940e02201128396b47e2f /arch/arm/kernel/xscale-cp0.c | |
| parent | 8bcba70cb5c2204a011e06278a1fbfb1213e1df1 (diff) | |
ARM: iwmmxt: Use undef hook to enable coprocessor for task
Define a undef hook to deal with undef exceptions triggered by iwmmxt
instructions that were issued with the coprocessor disabled. This
removes the dependency on the coprocessor dispatch code in entry-armv.S,
which will be made NWFPE-only in a subsequent patch.
Reviewed-by: Linus Walleij <[email protected]>
Signed-off-by: Ard Biesheuvel <[email protected]>
Diffstat (limited to 'arch/arm/kernel/xscale-cp0.c')
| -rw-r--r-- | arch/arm/kernel/xscale-cp0.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/kernel/xscale-cp0.c b/arch/arm/kernel/xscale-cp0.c index ed4f6e77616d..00d00d3aae97 100644 --- a/arch/arm/kernel/xscale-cp0.c +++ b/arch/arm/kernel/xscale-cp0.c @@ -166,6 +166,7 @@ static int __init xscale_cp0_init(void) pr_info("XScale iWMMXt coprocessor detected.\n"); elf_hwcap |= HWCAP_IWMMXT; thread_register_notifier(&iwmmxt_notifier_block); + register_iwmmxt_undef_handler(); #endif } else { pr_info("XScale DSP coprocessor detected.\n"); |