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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-03-25 17:41:20 +0200
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-03-25 17:41:20 +0200
commit7bf7e370d5919112c223a269462cd0b546903829 (patch)
tree03ccc715239df14ae168277dbccc9d9cf4d8a2c8 /arch/mn10300/kernel/entry.S
parent68b1a1e786f29c900fa1c516a402e24f0ece622a (diff)
parentd39dd11c3e6a7af5c20bfac40594db36cf270f42 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus-1
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6: (9356 commits) [media] rc: update for bitop name changes fs: simplify iget & friends fs: pull inode->i_lock up out of writeback_single_inode fs: rename inode_lock to inode_hash_lock fs: move i_wb_list out from under inode_lock fs: move i_sb_list out from under inode_lock fs: remove inode_lock from iput_final and prune_icache fs: Lock the inode LRU list separately fs: factor inode disposal fs: protect inode->i_state with inode->i_lock lib, arch: add filter argument to show_mem and fix private implementations SLUB: Write to per cpu data when allocating it slub: Fix debugobjects with lockless fastpath autofs4: Do not potentially dereference NULL pointer returned by fget() in autofs_dev_ioctl_setpipefd() autofs4 - remove autofs4_lock autofs4 - fix d_manage() return on rcu-walk autofs4 - fix autofs4_expire_indirect() traversal autofs4 - fix dentry leak in autofs4_expire_direct() autofs4 - reinstate last used update on access vfs - check non-mountpoint dentry might block in __follow_mount_rcu() ... NOTE! This merge commit was created to fix compilation error. The block tree was merged upstream and removed the 'elv_queue_empty()' function which the new 'mtdswap' driver is using. So a simple merge of the mtd tree with upstream does not compile. And the mtd tree has already be published, so re-basing it is not an option. To fix this unfortunate situation, I had to merge upstream into the mtd-2.6.git tree without committing, put the fixup patch on top of this, and then commit this. The result is that we do not have commits which do not compile. In other words, this merge commit "merges" 3 things: the MTD tree, the upstream tree, and the fixup patch.
Diffstat (limited to 'arch/mn10300/kernel/entry.S')
-rw-r--r--arch/mn10300/kernel/entry.S67
1 files changed, 25 insertions, 42 deletions
diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S
index f00b9bafcd3e..fb93ad720b82 100644
--- a/arch/mn10300/kernel/entry.S
+++ b/arch/mn10300/kernel/entry.S
@@ -266,7 +266,11 @@ ENTRY(raw_bus_error)
###############################################################################
#
-# Miscellaneous exception entry points
+# NMI exception entry points
+#
+# This is used by ordinary interrupt channels that have the GxICR_NMI bit set
+# in addition to the main NMI and Watchdog channels. SMP NMI IPIs use this
+# facility.
#
###############################################################################
ENTRY(nmi_handler)
@@ -281,7 +285,7 @@ ENTRY(nmi_handler)
and NMIAGR_GN,d0
lsr 0x2,d0
cmp CALL_FUNCTION_NMI_IPI,d0
- bne 5f # if not call function, jump
+ bne nmi_not_smp_callfunc # if not call function, jump
# function call nmi ipi
add 4,sp # no need to store TBR
@@ -295,59 +299,38 @@ ENTRY(nmi_handler)
call smp_nmi_call_function_interrupt[],0
RESTORE_ALL
-5:
-#ifdef CONFIG_GDBSTUB
- cmp GDB_NMI_IPI,d0
- bne 3f # if not gdb nmi ipi, jump
+nmi_not_smp_callfunc:
+#ifdef CONFIG_KERNEL_DEBUGGER
+ cmp DEBUGGER_NMI_IPI,d0
+ bne nmi_not_debugger # if not kernel debugger NMI IPI, jump
- # gdb nmi ipi
+ # kernel debugger NMI IPI
add 4,sp # no need to store TBR
mov GxICR_DETECT,d0 # clear NMI
- movbu d0,(GxICR(GDB_NMI_IPI))
- movhu (GxICR(GDB_NMI_IPI)),d0
+ movbu d0,(GxICR(DEBUGGER_NMI_IPI))
+ movhu (GxICR(DEBUGGER_NMI_IPI)),d0
and ~EPSW_NMID,epsw # enable NMI
-#ifdef CONFIG_MN10300_CACHE_ENABLED
- mov (gdbstub_nmi_opr_type),d0
- cmp GDBSTUB_NMI_CACHE_PURGE,d0
- bne 4f # if not gdb cache purge, jump
-
- # gdb cache purge nmi ipi
- add -20,sp
- mov d1,(4,sp)
- mov a0,(8,sp)
- mov a1,(12,sp)
- mov mdr,d0
- mov d0,(16,sp)
- call gdbstub_local_purge_cache[],0
- mov 0x1,d0
- mov (CPUID),d1
- asl d1,d0
- mov gdbstub_nmi_cpumask,a0
- bclr d0,(a0)
- mov (4,sp),d1
- mov (8,sp),a0
- mov (12,sp),a1
- mov (16,sp),d0
- mov d0,mdr
- add 20,sp
- mov (sp),d0
- add 4,sp
- rti
-4:
-#endif /* CONFIG_MN10300_CACHE_ENABLED */
- # gdb wait nmi ipi
+
mov (sp),d0
SAVE_ALL
- call gdbstub_nmi_wait[],0
+ mov fp,d0 # arg 0: stacked register file
+ mov a2,d1 # arg 1: exception number
+ call debugger_nmi_interrupt[],0
RESTORE_ALL
-3:
-#endif /* CONFIG_GDBSTUB */
+
+nmi_not_debugger:
+#endif /* CONFIG_KERNEL_DEBUGGER */
mov (sp),d0 # restore TBR to d0
add 4,sp
#endif /* CONFIG_SMP */
bra __common_exception_nonmi
+###############################################################################
+#
+# General exception entry point
+#
+###############################################################################
ENTRY(__common_exception)
add -4,sp
mov d0,(sp)