aboutsummaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2013-05-30 13:39:01 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2013-05-30 13:39:01 +0900
commitdcdbe33add56cb659ebf21fb9b6577507e21d952 (patch)
tree928b048cc5a189803a7735e95ce6b449c6c39924 /arch
parent7b55eab81ecbbd44e76ac14c67479b82807c261b (diff)
parent1aeeac7ad484e1bea6fe602880893b3074adb40a (diff)
downloadlinux-dcdbe33add56cb659ebf21fb9b6577507e21d952.tar.gz
Merge branch 'mn10300' (mn10300 fixes from David Howells)
Merge mn10300 fixes from David Howells. * emailed patches from David Howells <dhowells@redhat.com>: MN10300: Need pci_iomap() and __pci_ioport_map() defining MN10300: ASB2305's PCI code needs the definition of XIRQ1 MN10300: Enable IRQs more in system call exit work path MN10300: Fix ret_from_kernel_thread
Diffstat (limited to 'arch')
-rw-r--r--arch/mn10300/include/asm/pci.h2
-rw-r--r--arch/mn10300/kernel/entry.S19
-rw-r--r--arch/mn10300/unit-asb2305/pci.c1
3 files changed, 9 insertions, 13 deletions
diff --git a/arch/mn10300/include/asm/pci.h b/arch/mn10300/include/asm/pci.h
index 8137c25c4e1..6f31cc0f1a8 100644
--- a/arch/mn10300/include/asm/pci.h
+++ b/arch/mn10300/include/asm/pci.h
@@ -103,4 +103,6 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
return channel ? 15 : 14;
}
+#include <asm-generic/pci_iomap.h>
+
#endif /* _ASM_PCI_H */
diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S
index 68fcab8f8f6..222152a3f75 100644
--- a/arch/mn10300/kernel/entry.S
+++ b/arch/mn10300/kernel/entry.S
@@ -60,6 +60,7 @@ ENTRY(ret_from_kernel_thread)
mov (REG_D0,fp),d0
mov (REG_A0,fp),a0
calls (a0)
+ GET_THREAD_INFO a2 # A2 must be set on return from sys_exit()
clr d0
mov d0,(REG_D0,fp)
jmp syscall_exit
@@ -107,10 +108,10 @@ syscall_exit_work:
and EPSW_nSL,d0
beq resume_kernel # returning to supervisor mode
- btst _TIF_SYSCALL_TRACE,d2
- beq work_pending
LOCAL_IRQ_ENABLE # could let syscall_trace_exit() call
# schedule() instead
+ btst _TIF_SYSCALL_TRACE,d2
+ beq work_pending
mov fp,d0
call syscall_trace_exit[],0 # do_syscall_trace(regs)
jmp resume_userspace
@@ -123,6 +124,7 @@ work_pending:
work_resched:
call schedule[],0
+resume_userspace:
# make sure we don't miss an interrupt setting need_resched or
# sigpending between sampling and the rti
LOCAL_IRQ_DISABLE
@@ -131,6 +133,8 @@ work_resched:
mov (TI_flags,a2),d2
btst _TIF_WORK_MASK,d2
beq restore_all
+
+ LOCAL_IRQ_ENABLE
btst _TIF_NEED_RESCHED,d2
bne work_resched
@@ -169,17 +173,6 @@ ret_from_intr:
and EPSW_nSL,d0
beq resume_kernel # returning to supervisor mode
-ENTRY(resume_userspace)
- # make sure we don't miss an interrupt setting need_resched or
- # sigpending between sampling and the rti
- LOCAL_IRQ_DISABLE
-
- # is there any work to be done on int/exception return?
- mov (TI_flags,a2),d2
- btst _TIF_WORK_MASK,d2
- bne work_pending
- jmp restore_all
-
#ifdef CONFIG_PREEMPT
ENTRY(resume_kernel)
LOCAL_IRQ_DISABLE
diff --git a/arch/mn10300/unit-asb2305/pci.c b/arch/mn10300/unit-asb2305/pci.c
index 1adcf024bb9..e37fac0461f 100644
--- a/arch/mn10300/unit-asb2305/pci.c
+++ b/arch/mn10300/unit-asb2305/pci.c
@@ -19,6 +19,7 @@
#include <linux/delay.h>
#include <linux/irq.h>
#include <asm/io.h>
+#include <asm/irq.h>
#include "pci-asb2305.h"
unsigned int pci_probe = 1;