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-rw-r--r--arch/arm/kernel/calls.S4
-rw-r--r--arch/arm/kernel/entry-armv.S24
-rw-r--r--arch/arm/kernel/head-common.S7
3 files changed, 14 insertions, 21 deletions
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index 283e14fff993..95f1c121cb30 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -359,9 +359,11 @@
CALL(sys_kexec_load)
CALL(sys_utimensat)
CALL(sys_signalfd)
-/* 350 */ CALL(sys_ni_syscall)
+/* 350 */ CALL(sys_timerfd_create)
CALL(sys_eventfd)
CALL(sys_fallocate)
+ CALL(sys_timerfd_settime)
+ CALL(sys_timerfd_gettime)
#ifndef syscalls_counted
.equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
#define syscalls_counted
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 6fd1460111ec..7dca225752c1 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -209,14 +209,12 @@ __irq_svc:
irq_handler
#ifdef CONFIG_PREEMPT
+ str r8, [tsk, #TI_PREEMPT] @ restore preempt count
ldr r0, [tsk, #TI_FLAGS] @ get flags
+ teq r8, #0 @ if preempt count != 0
+ movne r0, #0 @ force flags to 0
tst r0, #_TIF_NEED_RESCHED
blne svc_preempt
-preempt_return:
- ldr r0, [tsk, #TI_PREEMPT] @ read preempt value
- str r8, [tsk, #TI_PREEMPT] @ restore preempt count
- teq r0, r7
- strne r0, [r0, -r0] @ bug()
#endif
ldr r0, [sp, #S_PSR] @ irqs are already disabled
msr spsr_cxsf, r0
@@ -230,19 +228,11 @@ preempt_return:
#ifdef CONFIG_PREEMPT
svc_preempt:
- teq r8, #0 @ was preempt count = 0
- ldreq r6, .LCirq_stat
- movne pc, lr @ no
- ldr r0, [r6, #4] @ local_irq_count
- ldr r1, [r6, #8] @ local_bh_count
- adds r0, r0, r1
- movne pc, lr
- mov r7, #0 @ preempt_schedule_irq
- str r7, [tsk, #TI_PREEMPT] @ expects preempt_count == 0
+ mov r8, lr
1: bl preempt_schedule_irq @ irq en/disable is done inside
ldr r0, [tsk, #TI_FLAGS] @ get new tasks TI_FLAGS
tst r0, #_TIF_NEED_RESCHED
- beq preempt_return @ go again
+ moveq pc, r8 @ go again
b 1b
#endif
@@ -333,10 +323,6 @@ __pabt_svc:
#endif
.LCfp:
.word fp_enter
-#ifdef CONFIG_PREEMPT
-.LCirq_stat:
- .word irq_stat
-#endif
/*
* User mode handlers
diff --git a/arch/arm/kernel/head-common.S b/arch/arm/kernel/head-common.S
index 50f667febe29..7e9c00a8a412 100644
--- a/arch/arm/kernel/head-common.S
+++ b/arch/arm/kernel/head-common.S
@@ -75,8 +75,13 @@ __error_p:
#ifdef CONFIG_DEBUG_LL
adr r0, str_p1
bl printascii
+ mov r0, r9
+ bl printhex8
+ adr r0, str_p2
+ bl printascii
b __error
-str_p1: .asciz "\nError: unrecognized/unsupported processor variant.\n"
+str_p1: .asciz "\nError: unrecognized/unsupported processor variant (0x"
+str_p2: .asciz ").\n"
.align
#endif