Merge branch 'x86/mm' into x86/core

mariux64 · Mar 5, 2009 · 28e93a0 · 28e93a0
2 parents caab36b + ed26dbe
commit 28e93a0
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Showing 13 changed files with 472 additions and 491 deletions.
diff --git a/arch/x86/include/asm/init.h b/arch/x86/include/asm/init.h
@@ -0,0 +1,18 @@
+#ifndef _ASM_X86_INIT_32_H
+#define _ASM_X86_INIT_32_H
+
+#ifdef CONFIG_X86_32
+extern void __init early_ioremap_page_table_range_init(void);
+#endif
+
+extern unsigned long __init
+kernel_physical_mapping_init(unsigned long start,
+			     unsigned long end,
+			     unsigned long page_size_mask);
+
+
+extern unsigned long __initdata e820_table_start;
+extern unsigned long __meminitdata e820_table_end;
+extern unsigned long __meminitdata e820_table_top;
+
+#endif /* _ASM_X86_INIT_32_H */
diff --git a/arch/x86/include/asm/page_types.h b/arch/x86/include/asm/page_types.h
@@ -40,14 +40,8 @@
 
 #ifndef __ASSEMBLY__
 
-struct pgprot;
-
 extern int page_is_ram(unsigned long pagenr);
 extern int devmem_is_allowed(unsigned long pagenr);
-extern void map_devmem(unsigned long pfn, unsigned long size,
-		       struct pgprot vma_prot);
-extern void unmap_devmem(unsigned long pfn, unsigned long size,
-			 struct pgprot vma_prot);
 
 extern unsigned long max_low_pfn_mapped;
 extern unsigned long max_pfn_mapped;

diff --git a/arch/x86/include/asm/pat.h b/arch/x86/include/asm/pat.h
@@ -2,6 +2,7 @@
 #define _ASM_X86_PAT_H
 
 #include <linux/types.h>
+#include <asm/pgtable_types.h>
 
 #ifdef CONFIG_X86_PAT
 extern int pat_enabled;
@@ -17,5 +18,9 @@ extern int free_memtype(u64 start, u64 end);
 
 extern int kernel_map_sync_memtype(u64 base, unsigned long size,
 		unsigned long flag);
+extern void map_devmem(unsigned long pfn, unsigned long size,
+		       struct pgprot vma_prot);
+extern void unmap_devmem(unsigned long pfn, unsigned long size,
+			 struct pgprot vma_prot);
 
 #endif /* _ASM_X86_PAT_H */
diff --git a/arch/x86/include/asm/pgtable_32_types.h b/arch/x86/include/asm/pgtable_32_types.h
@@ -25,6 +25,11 @@
  * area for the same reason. ;)
  */
 #define VMALLOC_OFFSET	(8 * 1024 * 1024)
+
+#ifndef __ASSEMBLER__
+extern bool __vmalloc_start_set; /* set once high_memory is set */
+#endif
+
 #define VMALLOC_START	((unsigned long)high_memory + VMALLOC_OFFSET)
 #ifdef CONFIG_X86_PAE
 #define LAST_PKMAP 512

diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
@@ -273,6 +273,7 @@ typedef struct page *pgtable_t;
 
 extern pteval_t __supported_pte_mask;
 extern int nx_enabled;
+extern void set_nx(void);
 
 #define pgprot_writecombine	pgprot_writecombine
 extern pgprot_t pgprot_writecombine(pgprot_t prot);

diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
@@ -558,6 +558,19 @@ static inline void __init construct_default_ISA_mptable(int mpc_default_type)
 
 static struct mpf_intel *mpf_found;
 
+static unsigned long __init get_mpc_size(unsigned long physptr)
+{
+	struct mpc_table *mpc;
+	unsigned long size;
+
+	mpc = early_ioremap(physptr, PAGE_SIZE);
+	size = mpc->length;
+	early_iounmap(mpc, PAGE_SIZE);
+	apic_printk(APIC_VERBOSE, "  mpc: %lx-%lx\n", physptr, physptr + size);
+
+	return size;
+}
+
 /*
  * Scan the memory blocks for an SMP configuration block.
  */
@@ -611,21 +624,27 @@ static void __init __get_smp_config(unsigned int early)
 		construct_default_ISA_mptable(mpf->feature1);
 
 	} else if (mpf->physptr) {
+		struct mpc_table *mpc;
+		unsigned long size;
 
+		size = get_mpc_size(mpf->physptr);
+		mpc = early_ioremap(mpf->physptr, size);
 		/*
 		 * Read the physical hardware table.  Anything here will
 		 * override the defaults.
 		 */
-		if (!smp_read_mpc(phys_to_virt(mpf->physptr), early)) {
+		if (!smp_read_mpc(mpc, early)) {
 #ifdef CONFIG_X86_LOCAL_APIC
 			smp_found_config = 0;
 #endif
 			printk(KERN_ERR
 			       "BIOS bug, MP table errors detected!...\n");
 			printk(KERN_ERR "... disabling SMP support. "
 			       "(tell your hw vendor)\n");
+			early_iounmap(mpc, size);
 			return;
 		}
+		early_iounmap(mpc, size);
 
 		if (early)
 			return;
@@ -697,10 +716,10 @@ static int __init smp_scan_config(unsigned long base, unsigned long length,
 
 			if (!reserve)
 				return 1;
-			reserve_bootmem_generic(virt_to_phys(mpf), PAGE_SIZE,
+			reserve_bootmem_generic(virt_to_phys(mpf), sizeof(*mpf),
 					BOOTMEM_DEFAULT);
 			if (mpf->physptr) {
-				unsigned long size = PAGE_SIZE;
+				unsigned long size = get_mpc_size(mpf->physptr);
 #ifdef CONFIG_X86_32
 				/*
 				 * We cannot access to MPC table to compute

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
@@ -202,7 +202,9 @@ struct ist_info ist_info;
 #endif
 
 #else
-struct cpuinfo_x86 boot_cpu_data __read_mostly;
+struct cpuinfo_x86 boot_cpu_data __read_mostly = {
+	.x86_phys_bits = MAX_PHYSMEM_BITS,
+};
 EXPORT_SYMBOL(boot_cpu_data);
 #endif
 

diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
@@ -158,7 +158,6 @@ EXPORT_SYMBOL(kunmap);
 EXPORT_SYMBOL(kmap_atomic);
 EXPORT_SYMBOL(kunmap_atomic);
 
-#ifdef CONFIG_NUMA
 void __init set_highmem_pages_init(void)
 {
 	struct zone *zone;
@@ -182,11 +181,3 @@ void __init set_highmem_pages_init(void)
 	}
 	totalram_pages += totalhigh_pages;
 }
-#else
-void __init set_highmem_pages_init(void)
-{
-	add_highpages_with_active_regions(0, highstart_pfn, highend_pfn);
-
-	totalram_pages += totalhigh_pages;
-}
-#endif /* CONFIG_NUMA */