MN10300: And Panasonic AM34 subarch and implement SMP

Implement the Panasonic MN10300 AM34 CPU subarch and implement SMP support for
MN10300.  Also implement support for the MN2WS0060 processor and the ASB2364
evaluation board which are AM34 based.

Signed-off-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com>
Signed-off-by: Kiyoshi Owada <owada.kiyoshi@jp.panasonic.com>
Signed-off-by: David Howells <dhowells@redhat.com>

1 files changed, 6 insertions, 11 deletions

diff --git a/arch/mn10300/kernel/gdb-stub.c b/arch/mn10300/kernel/gdb-stub.c
index 41b11706c8ed..a5fc3f05309b 100644
--- a/arch/mn10300/kernel/gdb-stub.c
+++ b/arch/mn10300/kernel/gdb-stub.c
@@ -440,15 +440,11 @@ static const unsigned char gdbstub_insn_sizes[256] =
 
 static int __gdbstub_mark_bp(u8 *addr, int ix)
 {
-        if (addr < (u8 *) 0x70000000UL)
-                return 0;
-        /* 70000000-7fffffff: vmalloc area */
-        if (addr < (u8 *) 0x80000000UL)
+        /* vmalloc area */
+        if (((u8 *) VMALLOC_START <= addr) && (addr < (u8 *) VMALLOC_END))
                 goto okay;
-        if (addr < (u8 *) 0x8c000000UL)
-                return 0;
-        /* 8c000000-93ffffff: SRAM, SDRAM */
-        if (addr < (u8 *) 0x94000000UL)
+        /* SRAM, SDRAM */
+        if (((u8 *) 0x80000000UL <= addr) && (addr < (u8 *) 0xa0000000UL))
                 goto okay;
         return 0;
 
@@ -1197,9 +1193,8 @@ static int gdbstub(struct pt_regs *regs, enum exception_code excep)
         mn10300_set_gdbleds(1);
 
         asm volatile("mov mdr,%0" : "=d"(mdr));
-        asm volatile("mov epsw,%0" : "=d"(epsw));
-        asm volatile("mov %0,epsw"
-                     :: "d"((epsw & ~EPSW_IM) | EPSW_IE | EPSW_IM_1));
+        local_save_flags(epsw);
+        local_change_intr_mask_level(NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL + 1));
 
         gdbstub_store_fpu();