From: David S. Miller <davem@sunset.davemloft.net>
Date: Thu, 29 Sep 2005 04:38:08 +0000 (-0700)
Subject: [SPARC64]: Move phys_base, kern_{base,size}, and sp_banks[] init to paging_init
X-Git-Tag: v2.6.14-rc3~33^2~6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0836a0eb4073c3e0a09c5965833b9dec19f5abc7;p=platform%2Fkernel%2Flinux-exynos.git

[SPARC64]: Move phys_base, kern_{base,size}, and sp_banks[] init to paging_init

Also, move prom_probe_memory() into arch/sparc64/mm/init.c

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c
index 516f485..4c9c8f2 100644
--- a/arch/sparc64/kernel/setup.c
+++ b/arch/sparc64/kernel/setup.c
@@ -464,8 +464,6 @@ static void __init boot_flags_init(char *commands)
 	}
 }
 
-extern int prom_probe_memory(void);
-extern unsigned long start, end;
 extern void panic_setup(char *, int *);
 
 extern unsigned short root_flags;
@@ -494,8 +492,6 @@ void register_prom_callbacks(void)
 
 void __init setup_arch(char **cmdline_p)
 {
-	int i;
-
 	/* Initialize PROM console and command line. */
 	*cmdline_p = prom_getbootargs();
 	strcpy(saved_command_line, *cmdline_p);
@@ -514,21 +510,6 @@ void __init setup_arch(char **cmdline_p)
 	boot_flags_init(*cmdline_p);
 
 	idprom_init();
-	(void) prom_probe_memory();
-
-	phys_base = 0xffffffffffffffffUL;
-	for (i = 0; sp_banks[i].num_bytes != 0; i++) {
-		unsigned long top;
-
-		if (sp_banks[i].base_addr < phys_base)
-			phys_base = sp_banks[i].base_addr;
-		top = sp_banks[i].base_addr +
-			sp_banks[i].num_bytes;
-	}
-	pfn_base = phys_base >> PAGE_SHIFT;
-
-	kern_base = (prom_boot_mapping_phys_low >> 22UL) << 22UL;
-	kern_size = (unsigned long)&_end - (unsigned long)KERNBASE;
 
 	if (!root_flags)
 		root_mountflags &= ~MS_RDONLY;
diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c
index 4a52e79..80793d6 100644
--- a/arch/sparc64/mm/fault.c
+++ b/arch/sparc64/mm/fault.c
@@ -71,53 +71,6 @@ void set_brkpt(unsigned long addr, unsigned char mask, int flags, int mode)
 			     : "memory");
 }
 
-/* Nice, simple, prom library does all the sweating for us. ;) */
-unsigned long __init prom_probe_memory (void)
-{
-	register struct linux_mlist_p1275 *mlist;
-	register unsigned long bytes, base_paddr, tally;
-	register int i;
-
-	i = 0;
-	mlist = *prom_meminfo()->p1275_available;
-	bytes = tally = mlist->num_bytes;
-	base_paddr = mlist->start_adr;
-  
-	sp_banks[0].base_addr = base_paddr;
-	sp_banks[0].num_bytes = bytes;
-
-	while (mlist->theres_more != (void *) 0) {
-		i++;
-		mlist = mlist->theres_more;
-		bytes = mlist->num_bytes;
-		tally += bytes;
-		if (i >= SPARC_PHYS_BANKS-1) {
-			printk ("The machine has more banks than "
-				"this kernel can support\n"
-				"Increase the SPARC_PHYS_BANKS "
-				"setting (currently %d)\n",
-				SPARC_PHYS_BANKS);
-			i = SPARC_PHYS_BANKS-1;
-			break;
-		}
-    
-		sp_banks[i].base_addr = mlist->start_adr;
-		sp_banks[i].num_bytes = mlist->num_bytes;
-	}
-
-	i++;
-	sp_banks[i].base_addr = 0xdeadbeefbeefdeadUL;
-	sp_banks[i].num_bytes = 0;
-
-	/* Now mask all bank sizes on a page boundary, it is all we can
-	 * use anyways.
-	 */
-	for (i = 0; sp_banks[i].num_bytes != 0; i++)
-		sp_banks[i].num_bytes &= PAGE_MASK;
-
-	return tally;
-}
-
 static void __kprobes unhandled_fault(unsigned long address,
 				      struct task_struct *tsk,
 				      struct pt_regs *regs)
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index 9f6ca62..63a7b9b 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -1425,6 +1425,50 @@ void kernel_map_pages(struct page *page, int numpages, int enable)
 }
 #endif
 
+static void __init prom_probe_memory(void)
+{
+	struct linux_mlist_p1275 *mlist;
+	unsigned long bytes, base_paddr, tally;
+	int i;
+
+	i = 0;
+	mlist = *prom_meminfo()->p1275_available;
+	bytes = tally = mlist->num_bytes;
+	base_paddr = mlist->start_adr;
+  
+	sp_banks[0].base_addr = base_paddr;
+	sp_banks[0].num_bytes = bytes;
+
+	while (mlist->theres_more != (void *) 0) {
+		i++;
+		mlist = mlist->theres_more;
+		bytes = mlist->num_bytes;
+		tally += bytes;
+		if (i >= SPARC_PHYS_BANKS-1) {
+			printk ("The machine has more banks than "
+				"this kernel can support\n"
+				"Increase the SPARC_PHYS_BANKS "
+				"setting (currently %d)\n",
+				SPARC_PHYS_BANKS);
+			i = SPARC_PHYS_BANKS-1;
+			break;
+		}
+    
+		sp_banks[i].base_addr = mlist->start_adr;
+		sp_banks[i].num_bytes = mlist->num_bytes;
+	}
+
+	i++;
+	sp_banks[i].base_addr = 0xdeadbeefbeefdeadUL;
+	sp_banks[i].num_bytes = 0;
+
+	/* Now mask all bank sizes on a page boundary, it is all we can
+	 * use anyways.
+	 */
+	for (i = 0; sp_banks[i].num_bytes != 0; i++)
+		sp_banks[i].num_bytes &= PAGE_MASK;
+}
+
 /* paging_init() sets up the page tables */
 
 extern void cheetah_ecache_flush_init(void);
@@ -1435,7 +1479,23 @@ pgd_t swapper_pg_dir[2048];
 void __init paging_init(void)
 {
 	unsigned long end_pfn, pages_avail, shift;
-	unsigned long real_end;
+	unsigned long real_end, i;
+
+	prom_probe_memory();
+
+	phys_base = 0xffffffffffffffffUL;
+	for (i = 0; sp_banks[i].num_bytes != 0; i++) {
+		unsigned long top;
+
+		if (sp_banks[i].base_addr < phys_base)
+			phys_base = sp_banks[i].base_addr;
+		top = sp_banks[i].base_addr +
+			sp_banks[i].num_bytes;
+	}
+	pfn_base = phys_base >> PAGE_SHIFT;
+
+	kern_base = (prom_boot_mapping_phys_low >> 22UL) << 22UL;
+	kern_size = (unsigned long)&_end - (unsigned long)KERNBASE;
 
 	set_bit(0, mmu_context_bmap);