msm: kgsl: Add postmortem dump for 2D (z180) cores

Add ringbuffer and register dump as part of postmortem dump for z180
cores. Also, add kgsl_postmortem_dump as a preparatory general function
for postmortem dump for both types of kgsl devices, adreno and z180.

Change-Id: I8b538771bfa8f6bfdfe0b1b993afa3c53f8eb8cf
Signed-off-by: Harsh Vardhan Dwivedi <hdwivedi@codeaurora.org>
diff --git a/drivers/gpu/msm/z180.h b/drivers/gpu/msm/z180.h
index e5c5ef3..6e81a9d 100644
--- a/drivers/gpu/msm/z180.h
+++ b/drivers/gpu/msm/z180.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2008-2011, Code Aurora Forum. All rights reserved.
+/* Copyright (c) 2008-2012, Code Aurora Forum. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
@@ -19,6 +19,13 @@
 #define DEVICE_2D0_NAME "kgsl-2d0"
 #define DEVICE_2D1_NAME "kgsl-2d1"
 
+#define Z180_PACKET_SIZE 15
+#define Z180_PACKET_COUNT 8
+#define Z180_RB_SIZE (Z180_PACKET_SIZE*Z180_PACKET_COUNT \
+			  *sizeof(uint32_t))
+#define Z180_DEVICE(device) \
+		KGSL_CONTAINER_OF(device, struct z180_device, dev)
+
 #define Z180_DEFAULT_PWRSCALE_POLICY  NULL
 
 struct z180_ringbuffer {
@@ -34,4 +41,6 @@
 	spinlock_t cmdwin_lock;
 };
 
+int z180_dump(struct kgsl_device *, int);
+
 #endif /* __Z180_H */