---

yaml
---
r: 140349
b: refs/heads/master
c: c947a58
h: refs/heads/master
i:
  140347: 47ebeff
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 264da9f708b130122d881fa4570d1cd618440a73
+refs/heads/master: c947a585ab13f310c9223284dfd502790abd05f9

trunk/arch/xtensa/include/asm/page.h

@@ -14,6 +14,7 @@
 #include <asm/processor.h>
 #include <asm/types.h>
 #include <asm/cache.h>
+#include <platform/hardware.h>
 
 /*
  * Fixed TLB translations in the processor.
@@ -150,9 +151,11 @@ extern void copy_user_page(void*, void*, unsigned long, struct page*);
  * addresses.
  */
 
+#define ARCH_PFN_OFFSET		(PLATFORM_DEFAULT_MEM_START >> PAGE_SHIFT)
+
 #define __pa(x)			((unsigned long) (x) - PAGE_OFFSET)
 #define __va(x)			((void *)((unsigned long) (x) + PAGE_OFFSET))
-#define pfn_valid(pfn)		((unsigned long)pfn < max_mapnr)
+#define pfn_valid(pfn)		((pfn) >= ARCH_PFN_OFFSET && ((pfn) - ARCH_PFN_OFFSET) < max_mapnr)
 #ifdef CONFIG_DISCONTIGMEM
 # error CONFIG_DISCONTIGMEM not supported
 #endif

trunk/arch/xtensa/mm/init.c

@@ -167,7 +167,7 @@ void __init paging_init(void)
 
 	/* All pages are DMA-able, so we put them all in the DMA zone. */
 
-	zones_size[ZONE_DMA] = max_low_pfn;
+	zones_size[ZONE_DMA] = max_low_pfn - ARCH_PFN_OFFSET;
 	for (i = 1; i < MAX_NR_ZONES; i++)
 		zones_size[i] = 0;
 
@@ -179,7 +179,7 @@ void __init paging_init(void)
 
 	memset(swapper_pg_dir, 0, PAGE_SIZE);
 
-	free_area_init(zones_size);
+	free_area_init_node(0, zones_size, ARCH_PFN_OFFSET, NULL);
 }
 
 /*
@@ -220,8 +220,8 @@ void __init mem_init(void)
 	unsigned long codesize, reservedpages, datasize, initsize;
 	unsigned long highmemsize, tmp, ram;
 
-	max_mapnr = num_physpages = max_low_pfn;
-	high_memory = (void *) __va(max_mapnr << PAGE_SHIFT);
+	max_mapnr = num_physpages = max_low_pfn - ARCH_PFN_OFFSET;
+	high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
 	highmemsize = 0;
 
 #ifdef CONFIG_HIGHMEM
@@ -231,7 +231,7 @@ void __init mem_init(void)
 	totalram_pages += free_all_bootmem();
 
 	reservedpages = ram = 0;
-	for (tmp = 0; tmp < max_low_pfn; tmp++) {
+	for (tmp = 0; tmp < max_mapnr; tmp++) {
 		ram++;
 		if (PageReserved(mem_map+tmp))
 			reservedpages++;