From 02416dcf5a94af34bcd28b4baf25bbbf399d8136 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Wed, 15 Jun 2005 13:00:12 +0000
Subject: Redo RM9000 workaround which along with other DSP ASE changes was
 causing some headache for debuggers knowing about signal frames.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/signal32.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'arch/mips/kernel/signal32.c')

diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index 8639e24732a..806ed073e54 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -7,6 +7,7 @@
  * Copyright (C) 1994 - 2000  Ralf Baechle
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  */
+#include <linux/cache.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
@@ -30,6 +31,7 @@
 #include <asm/ucontext.h>
 #include <asm/system.h>
 #include <asm/fpu.h>
+#include <asm/war.h>
 
 #define SI_PAD_SIZE32   ((SI_MAX_SIZE/sizeof(int)) - 3)
 
@@ -392,16 +394,30 @@ static int restore_sigcontext32(struct pt_regs *regs, struct sigcontext32 *sc)
 
 struct sigframe {
 	u32 sf_ass[4];			/* argument save space for o32 */
+#if ICACHE_REFILLS_WORKAROUND_WAR
+	u32 sf_pad[2];
+#else
 	u32 sf_code[2];			/* signal trampoline */
+#endif
 	struct sigcontext32 sf_sc;
 	sigset_t sf_mask;
+#if ICACHE_REFILLS_WORKAROUND_WAR
+	u32 sf_code[8] ____cacheline_aligned;	/* signal trampoline */
+#endif
 };
 
 struct rt_sigframe32 {
 	u32 rs_ass[4];			/* argument save space for o32 */
+#if ICACHE_REFILLS_WORKAROUND_WAR
+	u32 rs_pad[2];
+#else
 	u32 rs_code[2];			/* signal trampoline */
+#endif
 	compat_siginfo_t rs_info;
 	struct ucontext32 rs_uc;
+#if ICACHE_REFILLS_WORKAROUND_WAR
+	u32 rs_code[8] __attribute__((aligned(32)));	/* signal trampoline */
+#endif
 };
 
 int copy_siginfo_to_user32(compat_siginfo_t *to, siginfo_t *from)
-- 
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