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Subject[PATCH 2/3] powerpc/8xx: Define a MODULE area below kernel text
Date
On the 8xx, TASK_SIZE is 0x80000000. The space between TASK_SIZE
and PAGE_OFFSET is not used.

In order to benefit from the powerpc specific module_alloc()
function which allocate modules with 32 Mbytes from
end of kernel text, define MODULES_VADDR and MODULES_END.

Set a 256Mb area just below PAGE_OFFSET, like book3s/32.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
arch/powerpc/include/asm/nohash/32/mmu-8xx.h | 3 +++
1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/include/asm/nohash/32/mmu-8xx.h b/arch/powerpc/include/asm/nohash/32/mmu-8xx.h
index 478249959baa..6e4faa0a9b35 100644
--- a/arch/powerpc/include/asm/nohash/32/mmu-8xx.h
+++ b/arch/powerpc/include/asm/nohash/32/mmu-8xx.h
@@ -172,6 +172,9 @@

#define mmu_linear_psize MMU_PAGE_8M

+#define MODULES_VADDR (PAGE_OFFSET - SZ_256M)
+#define MODULES_END PAGE_OFFSET
+
#ifndef __ASSEMBLY__

#include <linux/mmdebug.h>
--
2.25.0
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