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powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly

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Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Stuart Yoder
2012-07-05 04:41:35 +00:00
committed by Benjamin Herrenschmidt
parent db9112173b
commit 9778b696a0
16 changed files with 65 additions and 41 deletions
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24
arch/powerpc/kernel/entry_32.S
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@@ -92,7 +92,7 @@ crit_transfer_to_handler:
mfspr r8,SPRN_SPRG_THREAD
lwz r0,KSP_LIMIT(r8)
stw r0,SAVED_KSP_LIMIT(r11)
rlwimi r0,r1,0,0,(31-THREAD_SHIFT)
CURRENT_THREAD_INFO(r0, r1)
stw r0,KSP_LIMIT(r8)
/* fall through */
#endif
@@ -112,7 +112,7 @@ crit_transfer_to_handler:
mfspr r8,SPRN_SPRG_THREAD
lwz r0,KSP_LIMIT(r8)
stw r0,saved_ksp_limit@l(0)
rlwimi r0,r1,0,0,(31-THREAD_SHIFT)
CURRENT_THREAD_INFO(r0, r1)
stw r0,KSP_LIMIT(r8)
/* fall through */
#endif
@@ -158,7 +158,7 @@ transfer_to_handler:
tophys(r11,r11)
addi r11,r11,global_dbcr0@l
#ifdef CONFIG_SMP
rlwinm r9,r1,0,0,(31-THREAD_SHIFT)
CURRENT_THREAD_INFO(r9, r1)
lwz r9,TI_CPU(r9)
slwi r9,r9,3
add r11,r11,r9
@@ -179,7 +179,7 @@ transfer_to_handler:
ble- stack_ovf /* then the kernel stack overflowed */
5:
#if defined(CONFIG_6xx) || defined(CONFIG_E500)
rlwinm r9,r1,0,0,31-THREAD_SHIFT
CURRENT_THREAD_INFO(r9, r1)
tophys(r9,r9) /* check local flags */
lwz r12,TI_LOCAL_FLAGS(r9)
mtcrf 0x01,r12
@@ -333,7 +333,7 @@ _GLOBAL(DoSyscall)
mtmsr r11
1:
#endif /* CONFIG_TRACE_IRQFLAGS */
rlwinm r10,r1,0,0,(31-THREAD_SHIFT) /* current_thread_info() */
CURRENT_THREAD_INFO(r10, r1)
lwz r11,TI_FLAGS(r10)
andi. r11,r11,_TIF_SYSCALL_T_OR_A
bne- syscall_dotrace
@@ -354,7 +354,7 @@ ret_from_syscall:
bl do_show_syscall_exit
#endif
mr r6,r3
rlwinm r12,r1,0,0,(31-THREAD_SHIFT) /* current_thread_info() */
CURRENT_THREAD_INFO(r12, r1)
/* disable interrupts so current_thread_info()->flags can't change */
LOAD_MSR_KERNEL(r10,MSR_KERNEL) /* doesn't include MSR_EE */
/* Note: We don't bother telling lockdep about it */
@@ -815,7 +815,7 @@ ret_from_except:
user_exc_return: /* r10 contains MSR_KERNEL here */
/* Check current_thread_info()->flags */
rlwinm r9,r1,0,0,(31-THREAD_SHIFT)
CURRENT_THREAD_INFO(r9, r1)
lwz r9,TI_FLAGS(r9)
andi. r0,r9,_TIF_USER_WORK_MASK
bne do_work
@@ -835,7 +835,7 @@ restore_user:
/* N.B. the only way to get here is from the beq following ret_from_except. */
resume_kernel:
/* check current_thread_info->preempt_count */
rlwinm r9,r1,0,0,(31-THREAD_SHIFT)
CURRENT_THREAD_INFO(r9, r1)
lwz r0,TI_PREEMPT(r9)
cmpwi 0,r0,0 /* if non-zero, just restore regs and return */
bne restore
@@ -852,7 +852,7 @@ resume_kernel:
bl trace_hardirqs_off
#endif
1: bl preempt_schedule_irq
rlwinm r9,r1,0,0,(31-THREAD_SHIFT)
CURRENT_THREAD_INFO(r9, r1)
lwz r3,TI_FLAGS(r9)
andi. r0,r3,_TIF_NEED_RESCHED
bne- 1b
@@ -1122,7 +1122,7 @@ ret_from_debug_exc:
lwz r10,SAVED_KSP_LIMIT(r1)
stw r10,KSP_LIMIT(r9)
lwz r9,THREAD_INFO-THREAD(r9)
rlwinm r10,r1,0,0,(31-THREAD_SHIFT)
CURRENT_THREAD_INFO(r10, r1)
lwz r10,TI_PREEMPT(r10)
stw r10,TI_PREEMPT(r9)
RESTORE_xSRR(SRR0,SRR1);
@@ -1156,7 +1156,7 @@ load_dbcr0:
lis r11,global_dbcr0@ha
addi r11,r11,global_dbcr0@l
#ifdef CONFIG_SMP
rlwinm r9,r1,0,0,(31-THREAD_SHIFT)
CURRENT_THREAD_INFO(r9, r1)
lwz r9,TI_CPU(r9)
slwi r9,r9,3
add r11,r11,r9
@@ -1197,7 +1197,7 @@ recheck:
LOAD_MSR_KERNEL(r10,MSR_KERNEL)
SYNC
MTMSRD(r10) /* disable interrupts */
rlwinm r9,r1,0,0,(31-THREAD_SHIFT)
CURRENT_THREAD_INFO(r9, r1)
lwz r9,TI_FLAGS(r9)
andi. r0,r9,_TIF_NEED_RESCHED
bne- do_resched