diff options
Diffstat (limited to 'arch/arm/kernel/entry-armv.S')
| -rw-r--r-- | arch/arm/kernel/entry-armv.S | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index 3d727a8a23bc..0a2ba51cf35d 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -272,7 +272,15 @@ __und_svc: @ @ r0 - instruction @ +#ifndef CONFIG_THUMB2_KERNEL ldr r0, [r2, #-4] +#else + ldrh r0, [r2, #-2] @ Thumb instruction at LR - 2 + and r9, r0, #0xf800 + cmp r9, #0xe800 @ 32-bit instruction if xx >= 0 + ldrhhs r9, [r2] @ bottom 16 bits + orrhs r0, r9, r0, lsl #16 +#endif adr r9, BSYM(1f) bl call_fpe @@ -678,7 +686,9 @@ ENTRY(fp_enter) .word no_fp .previous -no_fp: mov pc, lr +ENTRY(no_fp) + mov pc, lr +ENDPROC(no_fp) __und_usr_unknown: enable_irq @@ -734,13 +744,6 @@ ENTRY(__switch_to) #ifdef CONFIG_MMU ldr r6, [r2, #TI_CPU_DOMAIN] #endif -#if __LINUX_ARM_ARCH__ >= 6 -#ifdef CONFIG_CPU_32v6K - clrex -#else - strex r5, r4, [ip] @ Clear exclusive monitor -#endif -#endif #if defined(CONFIG_HAS_TLS_REG) mcr p15, 0, r3, c13, c0, 3 @ set TLS register #elif !defined(CONFIG_TLS_REG_EMUL) |