[PATCH] sh: Drop hp690 discontig support
There was only one board using this (hp690 specifically), and it just so
happens that it's only physically discontiguous at the "normal" P1 offset. If
we bump up the P1 offset, it's possible to hit a shadowed region of memory
where we suddenly become magically contiguous.
As people have been using this shadowed region workaround for quite some time
(and without any adverse effects), it's time to drop the left over discontig
bits that no longer have any practical use (it was always very much
hp690-centric to begin with).
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 4e9c854..e342565 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -51,11 +51,6 @@
#define MAX_LOW_PFN (NODE_DATA(0)->bdata->node_low_pfn)
#endif
-#ifdef CONFIG_DISCONTIGMEM
-pg_data_t discontig_page_data[MAX_NUMNODES];
-bootmem_data_t discontig_node_bdata[MAX_NUMNODES];
-#endif
-
void (*copy_page)(void *from, void *to);
void (*clear_page)(void *to);
@@ -216,15 +211,6 @@
#endif
NODE_DATA(0)->node_mem_map = NULL;
free_area_init_node(0, NODE_DATA(0), zones_size, __MEMORY_START >> PAGE_SHIFT, 0);
-
-#ifdef CONFIG_DISCONTIGMEM
- /*
- * And for discontig, do some more fixups on the zone sizes..
- */
- zones_size[ZONE_DMA] = __MEMORY_SIZE_2ND >> PAGE_SHIFT;
- zones_size[ZONE_NORMAL] = 0;
- free_area_init_node(1, NODE_DATA(1), zones_size, __MEMORY_START_2ND >> PAGE_SHIFT, 0);
-#endif
}
void __init mem_init(void)
@@ -248,7 +234,7 @@
memset(empty_zero_page, 0, PAGE_SIZE);
__flush_wback_region(empty_zero_page, PAGE_SIZE);
- /*
+ /*
* Setup wrappers for copy/clear_page(), these will get overridden
* later in the boot process if a better method is available.
*/
@@ -257,9 +243,6 @@
/* this will put all low memory onto the freelists */
totalram_pages += free_all_bootmem_node(NODE_DATA(0));
-#ifdef CONFIG_DISCONTIGMEM
- totalram_pages += free_all_bootmem_node(NODE_DATA(1));
-#endif
reservedpages = 0;
for (tmp = 0; tmp < num_physpages; tmp++)
/*
@@ -286,7 +269,7 @@
void free_initmem(void)
{
unsigned long addr;
-
+
addr = (unsigned long)(&__init_begin);
for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
ClearPageReserved(virt_to_page(addr));