aboutsummaryrefslogtreecommitdiff
path: root/arch/powerpc/include/asm/kgdb.h
diff options
context:
space:
mode:
authorStephen Rothwell <sfr@canb.auug.org.au>2008-08-01 15:20:30 +1000
committerPaul Mackerras <paulus@samba.org>2008-08-04 12:02:00 +1000
commitb8b572e1015f81b4e748417be2629dfe51ab99f9 (patch)
tree7df58667d5ed71d6c8f8f4ce40ca16b6fb776d0b /arch/powerpc/include/asm/kgdb.h
parent2b12a4c524812fb3f6ee590a02e65b95c8c32229 (diff)
powerpc: Move include files to arch/powerpc/include/asm
from include/asm-powerpc. This is the result of a mkdir arch/powerpc/include/asm git mv include/asm-powerpc/* arch/powerpc/include/asm Followed by a few documentation/comment fixups and a couple of places where <asm-powepc/...> was being used explicitly. Of the latter only one was outside the arch code and it is a driver only built for powerpc. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/include/asm/kgdb.h')
-rw-r--r--arch/powerpc/include/asm/kgdb.h63
1 files changed, 63 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kgdb.h b/arch/powerpc/include/asm/kgdb.h
new file mode 100644
index 00000000000..edd217006d2
--- /dev/null
+++ b/arch/powerpc/include/asm/kgdb.h
@@ -0,0 +1,63 @@
+/*
+ * The PowerPC (32/64) specific defines / externs for KGDB. Based on
+ * the previous 32bit and 64bit specific files, which had the following
+ * copyrights:
+ *
+ * PPC64 Mods (C) 2005 Frank Rowand (frowand@mvista.com)
+ * PPC Mods (C) 2004 Tom Rini (trini@mvista.com)
+ * PPC Mods (C) 2003 John Whitney (john.whitney@timesys.com)
+ * PPC Mods (C) 1998 Michael Tesch (tesch@cs.wisc.edu)
+ *
+ *
+ * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ * Author: Tom Rini <trini@kernel.crashing.org>
+ *
+ * 2006 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+#ifdef __KERNEL__
+#ifndef __POWERPC_KGDB_H__
+#define __POWERPC_KGDB_H__
+
+#ifndef __ASSEMBLY__
+
+#define BREAK_INSTR_SIZE 4
+#define BUFMAX ((NUMREGBYTES * 2) + 512)
+#define OUTBUFMAX ((NUMREGBYTES * 2) + 512)
+static inline void arch_kgdb_breakpoint(void)
+{
+ asm(".long 0x7d821008"); /* twge r2, r2 */
+}
+#define CACHE_FLUSH_IS_SAFE 1
+
+/* The number bytes of registers we have to save depends on a few
+ * things. For 64bit we default to not including vector registers and
+ * vector state registers. */
+#ifdef CONFIG_PPC64
+/*
+ * 64 bit (8 byte) registers:
+ * 32 gpr, 32 fpr, nip, msr, link, ctr
+ * 32 bit (4 byte) registers:
+ * ccr, xer, fpscr
+ */
+#define NUMREGBYTES ((68 * 8) + (3 * 4))
+#define NUMCRITREGBYTES 184
+#else /* CONFIG_PPC32 */
+/* On non-E500 family PPC32 we determine the size by picking the last
+ * register we need, but on E500 we skip sections so we list what we
+ * need to store, and add it up. */
+#ifndef CONFIG_E500
+#define MAXREG (PT_FPSCR+1)
+#else
+/* 32 GPRs (8 bytes), nip, msr, ccr, link, ctr, xer, acc (8 bytes), spefscr*/
+#define MAXREG ((32*2)+6+2+1)
+#endif
+#define NUMREGBYTES (MAXREG * sizeof(int))
+/* CR/LR, R1, R2, R13-R31 inclusive. */
+#define NUMCRITREGBYTES (23 * sizeof(int))
+#endif /* 32/64 */
+#endif /* !(__ASSEMBLY__) */
+#endif /* !__POWERPC_KGDB_H__ */
+#endif /* __KERNEL__ */