patch-2.4.22 linux-2.4.22/arch/ia64/sn/fakeprom/fpmem.c

• Lines: 159
• Date: 2003-08-25 04:44:39.000000000 -0700
• Orig file: linux-2.4.21/arch/ia64/sn/fakeprom/fpmem.c
• Orig date: 2003-06-13 07:51:30.000000000 -0700

diff -urN linux-2.4.21/arch/ia64/sn/fakeprom/fpmem.c linux-2.4.22/arch/ia64/sn/fakeprom/fpmem.c
@@ -4,7 +4,7 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 2000-2002 Silicon Graphics, Inc.  All rights reserved.
+ * Copyright (C) 2000-2003 Silicon Graphics, Inc.  All rights reserved.
  */
 
 
@@ -13,7 +13,7 @@
  * FPROM EFI memory descriptor build routines
  *
  * 	- Routines to build the EFI memory descriptor map
- * 	- Should also be usable by the SGI SN1 prom to convert
+ * 	- Should also be usable by the SGI prom to convert
  * 	  klconfig to efi_memmap
  */
 
@@ -53,10 +53,7 @@
 #define KERNEL_SIZE		(4*MB)
 #define PROMRESERVED_SIZE	(1*MB)
 
-#ifdef CONFIG_IA64_SGI_SN1
-#define PHYS_ADDRESS(_n, _x)		(((long)_n<<33) | (long)_x)
-#define MD_BANK_SHFT 30
-#else
+#ifdef SGI_SN2
 #define PHYS_ADDRESS(_n, _x)		(((long)_n<<38) | (long)_x | 0x3000000000UL)
 #define MD_BANK_SHFT 34
 #endif
@@ -77,7 +74,7 @@
 	return sn_config->cpus;
 }
 
-/* For SN1, get the index th nasid */
+/* For SN, get the index th nasid */
 
 int
 GetNasid(int index)
@@ -104,40 +101,7 @@
  * actually disabled etc.
  */
 
-#ifdef CONFIG_IA64_SGI_SN1
-int
-IsBankPresent(int index, node_memmap_t nmemmap)
-{
-	switch (index) {
-		case 0:return nmemmap.b0;
-		case 1:return nmemmap.b1;
-		case 2:return nmemmap.b2;
-		case 3:return nmemmap.b3;
-		case 4:return nmemmap.b4;
-		case 5:return nmemmap.b5;
-		case 6:return nmemmap.b6;
-		case 7:return nmemmap.b7;
-		default:return -1 ;
-	}
-}
-
-int
-GetBankSize(int index, node_memmap_t nmemmap)
-{
-        switch (index) {
-                case 0:
-                case 1:return nmemmap.b01size;
-                case 2:
-                case 3:return nmemmap.b23size;
-                case 4:
-                case 5:return nmemmap.b45size;
-                case 6:
-                case 7:return nmemmap.b67size;
-                default:return -1 ;
-        }
-}
-
-#else
+#ifdef SGI_SN2
 int
 IsBankPresent(int index, node_memmap_t nmemmap)
 {
@@ -168,13 +132,13 @@
 #endif
 
 void
-build_mem_desc(efi_memory_desc_t *md, int type, long paddr, long numbytes)
+build_mem_desc(efi_memory_desc_t *md, int type, long paddr, long numbytes, long attr)
 {
         md->type = type;
         md->phys_addr = paddr;
         md->virt_addr = 0;
         md->num_pages = numbytes >> 12;
-        md->attribute = EFI_MEMORY_WB;
+        md->attribute = attr;
 }
 
 int
@@ -192,12 +156,12 @@
 	for (cnode=0;cnode<numnodes;cnode++) {
 		nasid = GetNasid(cnode) ;
 		membank_info = GetMemBankInfo(cnode) ;
-		for (bank=0;bank<PLAT_CLUMPS_PER_NODE;bank++) {
+		for (bank=0;bank<MD_BANKS_PER_NODE;bank++) {
 			if (IsBankPresent(bank, membank_info)) {
 				bsize = GetBankSize(bank, membank_info) ;
                                 paddr = PHYS_ADDRESS(nasid, (long)bank<<MD_BANK_SHFT);
                                 numbytes = BankSizeBytes(bsize);
-#ifdef CONFIG_IA64_SGI_SN2
+#ifdef SGI_SN2
 				/* 
 				 * Ignore directory.
 				 * Shorten memory chunk by 1 page - makes a better
@@ -236,28 +200,40 @@
                                  */
                                 if (bank == 0) {
 					if (cnode == 0) {
+						hole = 2*1024*1024;
+						build_mem_desc(md, EFI_PAL_CODE, paddr, hole, EFI_MEMORY_WB|EFI_MEMORY_WB);
+						numbytes -= hole;
+                                        	paddr += hole;
+			        		count++ ;
+                                        	md += mdsize;
 						hole = 1*1024*1024;
-						build_mem_desc(md, EFI_PAL_CODE, paddr, hole);
+						build_mem_desc(md, EFI_CONVENTIONAL_MEMORY, paddr, hole, EFI_MEMORY_UC);
 						numbytes -= hole;
                                         	paddr += hole;
 			        		count++ ;
                                         	md += mdsize;
-						hole = 3*1024*1024;
-						build_mem_desc(md, EFI_RUNTIME_SERVICES_DATA, paddr, hole);
+						hole = 1*1024*1024;
+						build_mem_desc(md, EFI_RUNTIME_SERVICES_DATA, paddr, hole, EFI_MEMORY_WB|EFI_MEMORY_WB);
 						numbytes -= hole;
                                         	paddr += hole;
 			        		count++ ;
                                         	md += mdsize;
 					} else {
-						hole = PROMRESERVED_SIZE;
-                                        	build_mem_desc(md, EFI_RUNTIME_SERVICES_DATA, paddr, hole);
+						hole = 2*1024*1024;
+                                        	build_mem_desc(md, EFI_RUNTIME_SERVICES_DATA, paddr, hole, EFI_MEMORY_WB|EFI_MEMORY_WB);
+						numbytes -= hole;
+                                        	paddr += hole;
+			        		count++ ;
+                                        	md += mdsize;
+						hole = 2*1024*1024;
+                                        	build_mem_desc(md, EFI_RUNTIME_SERVICES_DATA, paddr, hole, EFI_MEMORY_UC);
 						numbytes -= hole;
                                         	paddr += hole;
 			        		count++ ;
                                         	md += mdsize;
 					}
                                 }
-                                build_mem_desc(md, EFI_CONVENTIONAL_MEMORY, paddr, numbytes);
+                                build_mem_desc(md, EFI_CONVENTIONAL_MEMORY, paddr, numbytes, EFI_MEMORY_WB|EFI_MEMORY_WB);
 
 			        md += mdsize ;
 			        count++ ;