[PATCH] Reserve stack/heap area for RP program

[Tiejun Chen <tiejun.chen@windriver.com>]

When you want to run a program on RP it's necessary to reserve corresponding stack/heap
area of that program.

Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
---
 arch/mips/mti-malta/malta-memory.c |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/arch/mips/mti-malta/malta-memory.c b/arch/mips/mti-malta/malta-memory.c
index 61888ff..d8c0834 100644
--- a/arch/mips/mti-malta/malta-memory.c
+++ b/arch/mips/mti-malta/malta-memory.c
@@ -87,6 +87,19 @@ static struct prom_pmemblock * __init prom_getmdesc(void)
 	else
 		memsize = physical_memsize;
 
+#ifdef CONFIG_MIPS_VPE_LOADER
+	/*
+         * The default DFLT_STACK_SIZE and DFLT_HEAP_SIZE will be known 
+         * from sde-kit. Actually it should define according to the different RP
+         * application. In the future we might want to improve it.
+         */
+#define DFLT_STACK_SIZE (65536)
+#define DFLT_HEAP_SIZE  (1048576) 
+        /* Reserve area used by building stack and heap for running RP. 
+         */
+        memsize -= (DFLT_HEAP_SIZE + DFLT_STACK_SIZE + PAGE_SIZE);
+#endif
+
 	memset(mdesc, 0, sizeof(mdesc));
 
 	mdesc[0].type = yamon_dontuse;
-- 
1.5.5.1