Blackfin: show the whole accumulator in the pseudo DBG insn

Rather than print just part of the accumulator register, show the whole
40 bits.  This matches the simulator behavior better.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 19 insertions, 6 deletions

diff --git a/arch/blackfin/kernel/pseudodbg.c b/arch/blackfin/kernel/pseudodbg.c
index e57ce2f64bfe..db85bc94334e 100644
--- a/arch/blackfin/kernel/pseudodbg.c
+++ b/arch/blackfin/kernel/pseudodbg.c
@@ -158,7 +158,7 @@ bool execute_pseudodbg_assert(struct pt_regs *fp, unsigned int opcode)
 bool execute_pseudodbg(struct pt_regs *fp, unsigned int opcode)
 {
         int grp, fn, reg;
-        long value;
+        long value, value1;
 
         if ((opcode & 0xFF000000) != PseudoDbg_opcode)
                 return false;
@@ -168,11 +168,24 @@ bool execute_pseudodbg(struct pt_regs *fp, unsigned int opcode)
         fn  = ((opcode >> PseudoDbg_fn_bits)  & PseudoDbg_fn_mask);
         reg = ((opcode >> PseudoDbg_reg_bits) & PseudoDbg_reg_mask);
 
-        if (!fix_up_reg(fp, &value, grp, reg))
-                return false;
+        if (fn == 3 && (reg == 0 || reg == 1)) {
+                if (!fix_up_reg(fp, &value, 4, 2 * reg))
+                        return false;
+                if (!fix_up_reg(fp, &value1, 4, 2 * reg + 1))
+                        return false;
 
-        pr_notice("DBG %s = %08lx\n", get_allreg_name(grp, reg), value);
+                pr_notice("DBG A%i = %02lx%08lx\n", reg, value & 0xFF, value1);
+                fp->pc += 2;
+                return true;
 
-        fp->pc += 2;
-        return true;
+        } else if (fn == 0) {
+                if (!fix_up_reg(fp, &value, grp, reg))
+                        return false;
+
+                pr_notice("DBG %s = %08lx\n", get_allreg_name(grp, reg), value);
+                fp->pc += 2;
+                return true;
+        }
+
+        return false;
 }