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| author | Christophe Leroy | 2019-01-31 11:08:50 +0100 |
|---|---|---|
| committer | Michael Ellerman | 2019-02-23 12:31:39 +0100 |
| commit | 054860897cd35a4e9cec953ae955b429e31e74f7 (patch) | |
| tree | 53935bbb2c2dcd7116f24746fc303c3bff695481 /arch/powerpc/kernel | |
| parent | powerpc: Avoid circular header inclusion in mmu-hash.h (diff) | |
| download | kernel-qcow2-linux-054860897cd35a4e9cec953ae955b429e31e74f7.tar.gz kernel-qcow2-linux-054860897cd35a4e9cec953ae955b429e31e74f7.tar.xz kernel-qcow2-linux-054860897cd35a4e9cec953ae955b429e31e74f7.zip | |
powerpc: Only use task_struct 'cpu' field on SMP
When moving to CONFIG_THREAD_INFO_IN_TASK, the thread_info 'cpu' field
gets moved into task_struct and only defined when CONFIG_SMP is set.
This patch ensures that TI_CPU is only used when CONFIG_SMP is set and
that task_struct 'cpu' field is not used directly out of SMP code.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/head_fsl_booke.S | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/misc_32.S | 4 |
2 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S index 2386ce2a9c6e..2c21e8642a00 100644 --- a/arch/powerpc/kernel/head_fsl_booke.S +++ b/arch/powerpc/kernel/head_fsl_booke.S @@ -243,8 +243,10 @@ set_ivor: li r0,0 stwu r0,THREAD_SIZE-STACK_FRAME_OVERHEAD(r1) +#ifdef CONFIG_SMP CURRENT_THREAD_INFO(r22, r1) stw r24, TI_CPU(r22) +#endif bl early_init diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index 57d2ffb2d45c..02b8cdd73792 100644 --- a/arch/powerpc/kernel/misc_32.S +++ b/arch/powerpc/kernel/misc_32.S @@ -183,10 +183,14 @@ _GLOBAL(low_choose_750fx_pll) or r4,r4,r5 mtspr SPRN_HID1,r4 +#ifdef CONFIG_SMP /* Store new HID1 image */ CURRENT_THREAD_INFO(r6, r1) lwz r6,TI_CPU(r6) slwi r6,r6,2 +#else + li r6, 0 +#endif addis r6,r6,nap_save_hid1@ha stw r4,nap_save_hid1@l(r6) |