From: Hyok S. Choi <hyok.choi@samsung.com>
Date: Fri, 13 Jan 2006 21:04:17 +0000 (+0000)
Subject: [ARM] start_thread fixup for nommu mode
X-Git-Tag: upstream/snapshot3+hdmi~43531^2~16
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e72b04756f16e40dfd6dab3da81e03fe6dfe16e6;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

[ARM] start_thread fixup for nommu mode

This patch supports start_thread in nommu mode which requires the
base index register.

Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/include/asm-arm/processor.h b/include/asm-arm/processor.h
index 3129069..04f4d34 100644
--- a/include/asm-arm/processor.h
+++ b/include/asm-arm/processor.h
@@ -49,6 +49,12 @@ struct thread_struct {
 
 #define INIT_THREAD  {	}
 
+#ifdef CONFIG_MMU
+#define nommu_start_thread(regs) do { } while (0)
+#else
+#define nommu_start_thread(regs) regs->ARM_r10 = current->mm->start_data
+#endif
+
 #define start_thread(regs,pc,sp)					\
 ({									\
 	unsigned long *stack = (unsigned long *)sp;			\
@@ -65,6 +71,7 @@ struct thread_struct {
 	regs->ARM_r2 = stack[2];	/* r2 (envp) */			\
 	regs->ARM_r1 = stack[1];	/* r1 (argv) */			\
 	regs->ARM_r0 = stack[0];	/* r0 (argc) */			\
+	nommu_start_thread(regs);					\
 })
 
 /* Forward declaration, a strange C thing */