msm: memory: Store TTBR0 for post-mortem debugging.
It is useful to know where the most-recently-running
process's page tables are located in memory in the event
that a crash occurs and memory dumps are available.
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
diff --git a/arch/arm/mach-msm/include/mach/memory.h b/arch/arm/mach-msm/include/mach/memory.h
index 0018934..e1f100b 100644
--- a/arch/arm/mach-msm/include/mach/memory.h
+++ b/arch/arm/mach-msm/include/mach/memory.h
@@ -79,6 +79,11 @@
#define finish_arch_switch(prev) do { l2x0_cache_sync(); } while (0)
#endif
+#if defined(CONFIG_ARCH_MSM8X60) || defined(CONFIG_ARCH_MSM8960)
+extern void store_ttbr0(void);
+#define finish_arch_switch(prev) do { store_ttbr0(); } while (0)
+#endif
+
#endif
#if defined CONFIG_ARCH_MSM_SCORPION || defined CONFIG_ARCH_MSM_KRAIT