summaryrefslogtreecommitdiff
path: root/arch/sparc64/math-emu
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sparc64/math-emu')
-rw-r--r--arch/sparc64/math-emu/math.c25
1 files changed, 23 insertions, 2 deletions
diff --git a/arch/sparc64/math-emu/math.c b/arch/sparc64/math-emu/math.c
index 2ae05cd7b773..a93a3664c854 100644
--- a/arch/sparc64/math-emu/math.c
+++ b/arch/sparc64/math-emu/math.c
@@ -206,9 +206,30 @@ int do_mathemu(struct pt_regs *regs, struct fpustate *f)
case FSTOQ: TYPE(3,3,1,1,1,0,0); break;
case FDTOQ: TYPE(3,3,1,2,1,0,0); break;
case FQTOI: TYPE(3,1,0,3,1,0,0); break;
+
+ /* We can get either unimplemented or unfinished
+ * for these cases. Pre-Niagara systems generate
+ * unfinished fpop for SUBNORMAL cases, and Niagara
+ * always gives unimplemented fpop for fsqrt{s,d}.
+ */
+ case FSQRTS: {
+ unsigned long x = current_thread_info()->xfsr[0];
+
+ x = (x >> 14) & 0xf;
+ TYPE(x,1,1,1,1,0,0);
+ printk("math-emu: type is %08x\n", type);
+ break;
+ }
+
+ case FSQRTD: {
+ unsigned long x = current_thread_info()->xfsr[0];
+
+ x = (x >> 14) & 0xf;
+ TYPE(x,2,1,2,1,0,0);
+ break;
+ }
+
/* SUBNORMAL - ftt == 2 */
- case FSQRTS: TYPE(2,1,1,1,1,0,0); break;
- case FSQRTD: TYPE(2,2,1,2,1,0,0); break;
case FADDD:
case FSUBD:
case FMULD: