Skip to content

Commit

Permalink
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Browse files Browse the repository at this point in the history
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
  • Loading branch information
Linus Torvalds committed Dec 24, 2021
2 parents c883118 + 8536a5e commit b927dfc
Show file tree
Hide file tree
Showing 2 changed files with 4 additions and 5 deletions.
8 changes: 3 additions & 5 deletions arch/arm/kernel/entry-armv.S
Original file line number Diff line number Diff line change
Expand Up @@ -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]
Expand All @@ -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

Expand Down
1 change: 1 addition & 0 deletions arch/arm/kernel/head-nommu.S
Original file line number Diff line number Diff line change
Expand Up @@ -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
Expand Down

0 comments on commit b927dfc

Please sign in to comment.