commit 02416dcf5a94af34bcd28b4baf25bbbf399d8136
author Ralf Baechle <ralf@linux-mips.org> Wed Jun 15 13:00:12 2005 +0000
committer Ralf Baechle <ralf@linux-mips.org> Sat Oct 29 19:31:23 2005 +0100
tree 1906c4266d4e28ef0b13d0579a145603dcbcff1b
parent aac8aa7717a23a9bf8740dbfb59755b1d62f04bf

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

diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index 8639e24..806ed07 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 @@
 
 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)