m68k: merge mmu and non-mmu include/asm/entry.h files
The changes in the mmu version of entry.h (entry_mm.h) and the non-mmu
version (entry_no.h) are not about the presence or use of an MMU at all.
The main changes are to support the ColdFire processors. The code for
trap entry and exit for all types of 68k processor outside coldfire is
the same.
So merge the files back to a single entry.h and share the common 68k
entry/exit code. Some changes are required for the non-mmu entry
handlers to adopt the differing macros for system call and interrupt
entry, but this is quite strait forward. The changes for the ColdFire
remove a couple of instructions for the separate a7 register case, and
are no worse for the older single a7 register case.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
diff --git a/arch/m68k/platform/68328/entry.S b/arch/m68k/platform/68328/entry.S
index 293e1eb..5c39b80 100644
--- a/arch/m68k/platform/68328/entry.S
+++ b/arch/m68k/platform/68328/entry.S
@@ -67,7 +67,7 @@
jra ret_from_exception
ENTRY(system_call)
- SAVE_ALL
+ SAVE_ALL_SYS
/* save top of frame*/
pea %sp@
@@ -129,7 +129,7 @@
* This is the main interrupt handler, responsible for calling process_int()
*/
inthandler1:
- SAVE_ALL
+ SAVE_ALL_INT
movew %sp@(PT_OFF_FORMATVEC), %d0
and #0x3ff, %d0
@@ -140,7 +140,7 @@
bra ret_from_interrupt
inthandler2:
- SAVE_ALL
+ SAVE_ALL_INT
movew %sp@(PT_OFF_FORMATVEC), %d0
and #0x3ff, %d0
@@ -151,7 +151,7 @@
bra ret_from_interrupt
inthandler3:
- SAVE_ALL
+ SAVE_ALL_INT
movew %sp@(PT_OFF_FORMATVEC), %d0
and #0x3ff, %d0
@@ -162,7 +162,7 @@
bra ret_from_interrupt
inthandler4:
- SAVE_ALL
+ SAVE_ALL_INT
movew %sp@(PT_OFF_FORMATVEC), %d0
and #0x3ff, %d0
@@ -173,7 +173,7 @@
bra ret_from_interrupt
inthandler5:
- SAVE_ALL
+ SAVE_ALL_INT
movew %sp@(PT_OFF_FORMATVEC), %d0
and #0x3ff, %d0
@@ -184,7 +184,7 @@
bra ret_from_interrupt
inthandler6:
- SAVE_ALL
+ SAVE_ALL_INT
movew %sp@(PT_OFF_FORMATVEC), %d0
and #0x3ff, %d0
@@ -195,7 +195,7 @@
bra ret_from_interrupt
inthandler7:
- SAVE_ALL
+ SAVE_ALL_INT
movew %sp@(PT_OFF_FORMATVEC), %d0
and #0x3ff, %d0
@@ -206,7 +206,7 @@
bra ret_from_interrupt
inthandler:
- SAVE_ALL
+ SAVE_ALL_INT
movew %sp@(PT_OFF_FORMATVEC), %d0
and #0x3ff, %d0
diff --git a/arch/m68k/platform/68360/entry.S b/arch/m68k/platform/68360/entry.S
index abbb896..aa47d1d 100644
--- a/arch/m68k/platform/68360/entry.S
+++ b/arch/m68k/platform/68360/entry.S
@@ -63,7 +63,7 @@
jra ret_from_exception
ENTRY(system_call)
- SAVE_ALL
+ SAVE_ALL_SYS
/* save top of frame*/
pea %sp@
@@ -125,7 +125,7 @@
* This is the main interrupt handler, responsible for calling do_IRQ()
*/
inthandler:
- SAVE_ALL
+ SAVE_ALL_INT
movew %sp@(PT_OFF_FORMATVEC), %d0
and.l #0x3ff, %d0
lsr.l #0x02, %d0
diff --git a/arch/m68k/platform/coldfire/entry.S b/arch/m68k/platform/coldfire/entry.S
index bd27242..3157461 100644
--- a/arch/m68k/platform/coldfire/entry.S
+++ b/arch/m68k/platform/coldfire/entry.S
@@ -61,7 +61,7 @@
bra 1f
ENTRY(system_call)
- SAVE_ALL
+ SAVE_ALL_SYS
move #0x2000,%sr /* enable intrs again */
cmpl #NR_syscalls,%d0
@@ -165,9 +165,7 @@
* sources). Calls up to high level code to do all the work.
*/
ENTRY(inthandler)
- SAVE_ALL
- moveq #-1,%d0
- movel %d0,%sp@(PT_OFF_ORIG_D0)
+ SAVE_ALL_INT
movew %sp@(PT_OFF_FORMATVEC),%d0 /* put exception # in d0 */
andl #0x03fc,%d0 /* mask out vector only */