Just add some minor changes into buddy allocator initialization.
After all the alterations it shall work just fine from now.
Signed-off-by: Serge Semin <fancer.lan...@gmail.com>
---
arch/mips/mm/init.c | 23 +++++++++++++++++++----
1 file changed, 19 insertions(+), 4 deletions(-)
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 98680fb..13a032f 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -7,6 +7,7 @@
* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
* Kevin D. Kissell, kev...@mips.com and Carsten Langgaard, carst...@mips.com
* Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
+ * Copyright (C) 2016 T-Platforms. All Rights Reserved.
*/
#include <linux/bug.h>
#include <linux/init.h>
@@ -462,22 +463,36 @@ static inline void mem_init_free_highmem(void)
#endif
}
+/*
+ * Let buddy allocator run
+ */
void __init mem_init(void)
{
+ /* Setup maximum number of pages of memory map array */
#ifdef CONFIG_HIGHMEM
#ifdef CONFIG_DISCONTIGMEM
#error "CONFIG_HIGHMEM and CONFIG_DISCONTIGMEM dont work together yet"
#endif
- max_mapnr = highend_pfn ? highend_pfn : max_low_pfn;
+ set_max_mapnr(highend_pfn);
#else
- max_mapnr = max_low_pfn;
+ set_max_mapnr(max_low_pfn);
#endif
- high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
+ /* Highmem starts right after lowmem */
+ high_memory = __va(PFN_PHYS(max_low_pfn));
+ /* Initialize speculative access registers - MAAR */
maar_init();
+
+ /* Free low memory registered within memblock allocator */
free_all_bootmem();
- setup_zero_pages(); /* Setup zeroed pages. */
+
+ /* Allocate zeroed pages */
+ setup_zero_pages();
+
+ /* Free highmemory registered in memblocks */
mem_init_free_highmem();
+
+ /* Print out memory areas statistics */
mem_init_print_info(NULL);
#ifdef CONFIG_64BIT
--
2.6.6
