diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-12-24 09:02:24 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-12-24 09:02:24 -0800 |
| commit | b927dfc67d05a72167ab980c375ed98b2ee9c2c6 (patch) | |
| tree | 62e34f269051652b4125b466a54763ac47874b81 | |
| parent | c8831184c56d60669fb4925c1ec721dcda2e2c6a (diff) | |
| parent | 8536a5ef886005bc443c2da9b842d69fd3d7647f (diff) | |
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
- fix nommu after getting rid of mini-stack for ARMv7
- fix Thumb2 bug in iWMMXt exception handling
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 9169/1: entry: fix Thumb2 bug in iWMMXt exception handling
ARM: 9160/1: NOMMU: Reload __secondary_data after PROCINFO_INITFUNC
| -rw-r--r-- | arch/arm/kernel/entry-armv.S | 8 | ||||
| -rw-r--r-- | arch/arm/kernel/head-nommu.S | 1 |
2 files changed, 4 insertions, 5 deletions
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index deff286eb5ea..5cd057859fe9 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -596,11 +596,9 @@ call_fpe: tstne r0, #0x04000000 @ bit 26 set on both ARM and Thumb-2 reteq lr and r8, r0, #0x00000f00 @ mask out CP number - THUMB( lsr r8, r8, #8 ) mov r7, #1 - add r6, r10, #TI_USED_CP - ARM( strb r7, [r6, r8, lsr #8] ) @ set appropriate used_cp[] - THUMB( strb r7, [r6, r8] ) @ set appropriate used_cp[] + add r6, r10, r8, lsr #8 @ add used_cp[] array offset first + strb r7, [r6, #TI_USED_CP] @ set appropriate used_cp[] #ifdef CONFIG_IWMMXT @ Test if we need to give access to iWMMXt coprocessors ldr r5, [r10, #TI_FLAGS] @@ -609,7 +607,7 @@ call_fpe: bcs iwmmxt_task_enable #endif ARM( add pc, pc, r8, lsr #6 ) - THUMB( lsl r8, r8, #2 ) + THUMB( lsr r8, r8, #6 ) THUMB( add pc, r8 ) nop diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S index fadfee9e2b45..950bef83339f 100644 --- a/arch/arm/kernel/head-nommu.S +++ b/arch/arm/kernel/head-nommu.S @@ -114,6 +114,7 @@ ENTRY(secondary_startup) add r12, r12, r10 ret r12 1: bl __after_proc_init + ldr r7, __secondary_data @ reload r7 ldr sp, [r7, #12] @ set up the stack pointer ldr r0, [r7, #16] @ set up task pointer mov fp, #0 |