From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bob Picco Date: Thu, 22 Sep 2005 16:14:39 +0000 Subject: [PATCH 3/4] V4 ia64 SPARSEMEM - conditional changes for SPARSEMEM Message-Id: <20050922161439.GZ16066@localhost.localdomain> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org This patch introduces the conditional changes required for the three memory models. With [patch 1/4] there are three memory models; FLATMEM, DISCONTIG and SPARSEMEM. Also a new arch include file sparemem.h is introduced for defining SPARSEMEM parameters. Signed-off-by: Bob Picco include/asm-ia64/meminit.h | 2 +- include/asm-ia64/mmzone.h | 10 +++++++--- include/asm-ia64/nodedata.h | 4 ++-- include/asm-ia64/page.h | 6 +++--- include/asm-ia64/sparsemem.h | 21 +++++++++++++++++++++ 5 files changed, 34 insertions(+), 9 deletions(-) Index: linux-2.6.14-rc2/include/asm-ia64/meminit.h =================================--- linux-2.6.14-rc2.orig/include/asm-ia64/meminit.h 2005-09-21 12:28:50.000000000 -0400 +++ linux-2.6.14-rc2/include/asm-ia64/meminit.h 2005-09-21 12:29:01.000000000 -0400 @@ -41,7 +41,7 @@ extern int filter_rsvd_memory (unsigned #define GRANULEROUNDUP(n) (((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1)) #define ORDERROUNDDOWN(n) ((n) & ~((PAGE_SIZE< #include -#ifdef CONFIG_DISCONTIGMEM +#ifdef CONFIG_NUMA static inline int pfn_to_nid(unsigned long pfn) { @@ -31,6 +31,10 @@ static inline int pfn_to_nid(unsigned lo #endif } +#ifdef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID +extern int early_pfn_to_nid(unsigned long pfn); +#endif + #ifdef CONFIG_IA64_DIG /* DIG systems are small */ # define MAX_PHYSNODE_ID 8 # define NR_NODE_MEMBLKS (MAX_NUMNODES * 8) @@ -39,8 +43,8 @@ static inline int pfn_to_nid(unsigned lo # define NR_NODE_MEMBLKS (MAX_NUMNODES * 4) #endif -#else /* CONFIG_DISCONTIGMEM */ +#else /* CONFIG_NUMA */ # define NR_NODE_MEMBLKS (MAX_NUMNODES * 4) -#endif /* CONFIG_DISCONTIGMEM */ +#endif /* CONFIG_NUMA */ #endif /* _ASM_IA64_MMZONE_H */ Index: linux-2.6.14-rc2/include/asm-ia64/nodedata.h =================================--- linux-2.6.14-rc2.orig/include/asm-ia64/nodedata.h 2005-09-21 12:28:50.000000000 -0400 +++ linux-2.6.14-rc2/include/asm-ia64/nodedata.h 2005-09-21 12:29:01.000000000 -0400 @@ -17,7 +17,7 @@ #include #include -#ifdef CONFIG_DISCONTIGMEM +#ifdef CONFIG_NUMA /* * Node Data. One of these structures is located on each node of a NUMA system. @@ -47,6 +47,6 @@ struct ia64_node_data { */ #define NODE_DATA(nid) (local_node_data->pg_data_ptrs[nid]) -#endif /* CONFIG_DISCONTIGMEM */ +#endif /* CONFIG_NUMA */ #endif /* _ASM_IA64_NODEDATA_H */ Index: linux-2.6.14-rc2/include/asm-ia64/page.h =================================--- linux-2.6.14-rc2.orig/include/asm-ia64/page.h 2005-09-21 12:28:50.000000000 -0400 +++ linux-2.6.14-rc2/include/asm-ia64/page.h 2005-09-21 12:29:01.000000000 -0400 @@ -102,15 +102,15 @@ do { \ #ifdef CONFIG_VIRTUAL_MEM_MAP extern int ia64_pfn_valid (unsigned long pfn); -#else +#elif defined(CONFIG_FLATMEM) # define ia64_pfn_valid(pfn) 1 #endif -#ifndef CONFIG_DISCONTIGMEM +#ifdef CONFIG_FLATMEM # define pfn_valid(pfn) (((pfn) < max_mapnr) && ia64_pfn_valid(pfn)) # define page_to_pfn(page) ((unsigned long) (page - mem_map)) # define pfn_to_page(pfn) (mem_map + (pfn)) -#else +#elif defined(CONFIG_DISCONTIGMEM) extern struct page *vmem_map; extern unsigned long max_low_pfn; # define pfn_valid(pfn) (((pfn) < max_low_pfn) && ia64_pfn_valid(pfn)) Index: linux-2.6.14-rc2/include/asm-ia64/sparsemem.h =================================--- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux-2.6.14-rc2/include/asm-ia64/sparsemem.h 2005-09-21 12:29:01.000000000 -0400 @@ -0,0 +1,21 @@ +#ifndef _ASM_IA64_SPARSEMEM_H +#define _ASM_IA64_SPARSEMEM_H + +#ifdef CONFIG_SPARSEMEM + /* + * SECTION_SIZE_BITS 2^N: how big each section will be + * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space + */ + +#define SECTION_SIZE_BITS (30) +#define MAX_PHYSMEM_BITS (50) +#ifdef CONFIG_FORCE_MAX_ZONEORDER +#if ((CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT) > SECTION_SIZE_BITS) +#undef SECTION_SIZE_BITS +#define SECTION_SIZE_BITS (CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT) +#endif +#endif + +#endif /* CONFIG_SPARSEMEM */ + +#endif /* _ASM_IA64_SPARSEMEM_H */