From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 1 Aug 2007 07:55:07 +0000 (+0900)
Subject: sh: Fix SH-X3 FPU exception handling.
X-Git-Tag: v2.6.23-rc2~5^2~4
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e0a3647fd7729bee1ed9667ce5d8eb88f0604138;p=linux-2.6

sh: Fix SH-X3 FPU exception handling.

SH-X3 has the FPU exceptions on different vectors completely,
patch in do_fpu_state_restore() to the proper vectors.

Results in a much happier userspace.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---

diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index 502d43e478..67015044d7 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -854,9 +854,14 @@ void __init trap_init(void)
 	set_exception_table_evt(0x800, do_reserved_inst);
 	set_exception_table_evt(0x820, do_illegal_slot_inst);
 #elif defined(CONFIG_SH_FPU)
+#ifdef CONFIG_CPU_SUBTYPE_SHX3
+	set_exception_table_evt(0xd80, do_fpu_state_restore);
+	set_exception_table_evt(0xda0, do_fpu_state_restore);
+#else
 	set_exception_table_evt(0x800, do_fpu_state_restore);
 	set_exception_table_evt(0x820, do_fpu_state_restore);
 #endif
+#endif
 
 #ifdef CONFIG_CPU_SH2
 	set_exception_table_vec(TRAP_ADDRESS_ERROR, address_error_handler);