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[Linuxconsole-commit]CVS: ruby/linux/arch/i386/kernel setup.c,1.47,1.48 dmi_scan.c,1.8,NONE
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From: James S. <jsi...@us...> - 2002-11-23 00:56:18
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Update of /cvsroot/linuxconsole/ruby/linux/arch/i386/kernel
In directory sc8-pr-cvs1:/tmp/cvs-serv1514/linux/arch/i386/kernel
Modified Files:
setup.c
Removed Files:
dmi_scan.c
Log Message:
Synced to 2.5.49 console BK tree.
Index: setup.c
===================================================================
RCS file: /cvsroot/linuxconsole/ruby/linux/arch/i386/kernel/setup.c,v
retrieving revision 1.47
retrieving revision 1.48
diff -u -d -r1.47 -r1.48
--- setup.c 18 Jun 2002 18:51:54 -0000 1.47
+++ setup.c 23 Nov 2002 00:55:45 -0000 1.48
@@ -35,6 +35,12 @@
#include <linux/highmem.h>
#include <asm/e820.h>
#include <asm/mpspec.h>
+#include <asm/edd.h>
+#include <asm/setup.h>
+#include <asm/arch_hooks.h>
+#include "setup_arch_pre.h"
+
+static inline char * __init machine_specific_memory_setup(void);
/*
* Machine setup..
@@ -45,6 +51,8 @@
unsigned long mmu_cr4_features;
+int acpi_disabled __initdata = 0;
+
int MCA_bus;
/* for MCA, but anyone else can use it if they want */
unsigned int machine_id;
@@ -71,6 +79,8 @@
struct e820map e820;
+unsigned char aux_device_present;
+
extern void early_cpu_init(void);
extern void dmi_scan_machine(void);
extern int root_mountflags;
@@ -80,35 +90,10 @@
unsigned long saved_videomode;
-/*
- * This is set up by the setup-routine at boot-time
- */
-#define PARAM ((unsigned char *)empty_zero_page)
-#define SCREEN_INFO (*(struct screen_info *) (PARAM+0))
-#define EXT_MEM_K (*(unsigned short *) (PARAM+2))
-#define ALT_MEM_K (*(unsigned long *) (PARAM+0x1e0))
-#define E820_MAP_NR (*(char*) (PARAM+E820NR))
-#define E820_MAP ((struct e820entry *) (PARAM+E820MAP))
-#define APM_BIOS_INFO (*(struct apm_bios_info *) (PARAM+0x40))
-#define DRIVE_INFO (*(struct drive_info_struct *) (PARAM+0x80))
-#define SYS_DESC_TABLE (*(struct sys_desc_table_struct*)(PARAM+0xa0))
-#define MOUNT_ROOT_RDONLY (*(unsigned short *) (PARAM+0x1F2))
-#define RAMDISK_FLAGS (*(unsigned short *) (PARAM+0x1F8))
-#define VIDEO_MODE (*(unsigned short *) (PARAM+0x1FA))
-#define ORIG_ROOT_DEV (*(unsigned short *) (PARAM+0x1FC))
-#define AUX_DEVICE_INFO (*(unsigned char *) (PARAM+0x1FF))
-#define LOADER_TYPE (*(unsigned char *) (PARAM+0x210))
-#define KERNEL_START (*(unsigned long *) (PARAM+0x214))
-#define INITRD_START (*(unsigned long *) (PARAM+0x218))
-#define INITRD_SIZE (*(unsigned long *) (PARAM+0x21c))
-#define COMMAND_LINE ((char *) (PARAM+2048))
-#define COMMAND_LINE_SIZE 256
-
#define RAMDISK_IMAGE_START_MASK 0x07FF
#define RAMDISK_PROMPT_FLAG 0x8000
#define RAMDISK_LOAD_FLAG 0x4000
-
static char command_line[COMMAND_LINE_SIZE];
char saved_command_line[COMMAND_LINE_SIZE];
@@ -272,16 +257,17 @@
* replaces the original e820 map with a new one, removing overlaps.
*
*/
+struct change_member {
+ struct e820entry *pbios; /* pointer to original bios entry */
+ unsigned long long addr; /* address for this change point */
+};
+struct change_member change_point_list[2*E820MAX] __initdata;
+struct change_member *change_point[2*E820MAX] __initdata;
+struct e820entry *overlap_list[E820MAX] __initdata;
+struct e820entry new_bios[E820MAX] __initdata;
+
static int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map)
{
- struct change_member {
- struct e820entry *pbios; /* pointer to original bios entry */
- unsigned long long addr; /* address for this change point */
- };
- struct change_member change_point_list[2*E820MAX];
- struct change_member *change_point[2*E820MAX];
- struct e820entry *overlap_list[E820MAX];
- struct e820entry new_bios[E820MAX];
struct change_member *change_tmp;
unsigned long current_type, last_type;
unsigned long long last_addr;
@@ -480,6 +466,23 @@
return 0;
}
+#if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE)
+unsigned char eddnr;
+struct edd_info edd[EDDNR];
+/**
+ * copy_edd() - Copy the BIOS EDD information
+ * from empty_zero_page into a safe place.
+ *
+ */
+static inline void copy_edd(void)
+{
+ eddnr = EDD_NR;
+ memcpy(edd, EDD_BUF, sizeof(edd));
+}
+#else
+#define copy_edd() do {} while (0)
+#endif
+
/*
* Do NOT EVER look at the BIOS memory size location.
* It does not work on many machines.
@@ -488,37 +491,14 @@
static void __init setup_memory_region(void)
{
- char *who = "BIOS-e820";
-
- /*
- * Try to copy the BIOS-supplied E820-map.
- *
- * Otherwise fake a memory map; one section from 0k->640k,
- * the next section from 1mb->appropriate_mem_k
- */
- sanitize_e820_map(E820_MAP, &E820_MAP_NR);
- if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0) {
- unsigned long mem_size;
-
- /* compare results from other methods and take the greater */
- if (ALT_MEM_K < EXT_MEM_K) {
- mem_size = EXT_MEM_K;
- who = "BIOS-88";
- } else {
- mem_size = ALT_MEM_K;
- who = "BIOS-e801";
- }
+ char *who = machine_specific_memory_setup();
- e820.nr_map = 0;
- add_memory_region(0, LOWMEMSIZE(), E820_RAM);
- add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
- }
printk(KERN_INFO "BIOS-provided physical RAM map:\n");
print_memory_map(who);
} /* setup_memory_region */
-static void __init parse_mem_cmdline (char ** cmdline_p)
+static void __init parse_cmdline_early (char ** cmdline_p)
{
char c = ' ', *to = command_line, *from = COMMAND_LINE;
int len = 0;
@@ -565,6 +545,11 @@
}
}
}
+
+ /* "acpi=off" disables both ACPI table parsing and interpreter init */
+ if (c == ' ' && !memcmp(from, "acpi=off", 8))
+ acpi_disabled = 1;
+
/*
* highmem=size forces highmem to be exactly 'size' bytes.
* This works even on boxes that have no highmem otherwise.
@@ -588,71 +573,13 @@
}
}
-void __init setup_arch(char **cmdline_p)
-{
- unsigned long bootmap_size, low_mem_size;
- unsigned long start_pfn, max_low_pfn;
- int i;
-
- early_cpu_init();
-
-#ifdef CONFIG_VISWS
- visws_get_board_type_and_rev();
-#endif
-
- ROOT_DEV = ORIG_ROOT_DEV;
- drive_info = DRIVE_INFO;
- screen_info = SCREEN_INFO;
- apm_info.bios = APM_BIOS_INFO;
- saved_videomode = VIDEO_MODE;
- printk("Video mode to be used for restore is %lx\n", saved_videomode);
- if( SYS_DESC_TABLE.length != 0 ) {
- MCA_bus = SYS_DESC_TABLE.table[3] &0x2;
- machine_id = SYS_DESC_TABLE.table[0];
- machine_submodel_id = SYS_DESC_TABLE.table[1];
- BIOS_revision = SYS_DESC_TABLE.table[2];
- }
-
-#ifdef CONFIG_BLK_DEV_RAM
- rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
- rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
- rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
-#endif
- setup_memory_region();
-
- if (!MOUNT_ROOT_RDONLY)
- root_mountflags &= ~MS_RDONLY;
- init_mm.start_code = (unsigned long) &_text;
- init_mm.end_code = (unsigned long) &_etext;
- init_mm.end_data = (unsigned long) &_edata;
- init_mm.brk = (unsigned long) &_end;
-
- code_resource.start = virt_to_phys(&_text);
- code_resource.end = virt_to_phys(&_etext)-1;
- data_resource.start = virt_to_phys(&_etext);
- data_resource.end = virt_to_phys(&_edata)-1;
-
- parse_mem_cmdline(cmdline_p);
-
-#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
-#define PFN_DOWN(x) ((x) >> PAGE_SHIFT)
-#define PFN_PHYS(x) ((x) << PAGE_SHIFT)
-
/*
- * Reserved space for vmalloc and iomap - defined in asm/page.h
+ * Find the highest page frame number we have available
*/
-#define MAXMEM_PFN PFN_DOWN(MAXMEM)
-#define MAX_NONPAE_PFN (1 << 20)
-
- /*
- * partially used pages are not usable - thus
- * we are rounding upwards:
- */
- start_pfn = PFN_UP(__pa(&_end));
+void __init find_max_pfn(void)
+{
+ int i;
- /*
- * Find the highest page frame number we have available
- */
max_pfn = 0;
for (i = 0; i < e820.nr_map; i++) {
unsigned long start, end;
@@ -666,10 +593,15 @@
if (end > max_pfn)
max_pfn = end;
}
+}
+
+/*
+ * Determine low and high memory ranges:
+ */
+unsigned long __init find_max_low_pfn(void)
+{
+ unsigned long max_low_pfn;
- /*
- * Determine low and high memory ranges:
- */
max_low_pfn = max_pfn;
if (max_low_pfn > MAXMEM_PFN) {
if (highmem_pages == -1)
@@ -719,28 +651,20 @@
printk(KERN_ERR "ignoring highmem size on non-highmem kernel!\n");
#endif
}
+ return max_low_pfn;
+}
-#ifdef CONFIG_HIGHMEM
- highstart_pfn = highend_pfn = max_pfn;
- if (max_pfn > max_low_pfn) {
- highstart_pfn = max_low_pfn;
- }
- printk(KERN_NOTICE "%ldMB HIGHMEM available.\n",
- pages_to_mb(highend_pfn - highstart_pfn));
-#endif
- printk(KERN_NOTICE "%ldMB LOWMEM available.\n",
- pages_to_mb(max_low_pfn));
- /*
- * Initialize the boot-time allocator (with low memory only):
- */
- bootmap_size = init_bootmem(start_pfn, max_low_pfn);
+#ifndef CONFIG_DISCONTIGMEM
+/*
+ * Register fully available low RAM pages with the bootmem allocator.
+ */
+static void __init register_bootmem_low_pages(unsigned long max_low_pfn)
+{
+ int i;
- /*
- * Register fully available low RAM pages with the bootmem allocator.
- */
for (i = 0; i < e820.nr_map; i++) {
unsigned long curr_pfn, last_pfn, size;
- /*
+ /*
* Reserve usable low memory
*/
if (e820.map[i].type != E820_RAM)
@@ -769,6 +693,39 @@
size = last_pfn - curr_pfn;
free_bootmem(PFN_PHYS(curr_pfn), PFN_PHYS(size));
}
+}
+
+static unsigned long __init setup_memory(void)
+{
+ unsigned long bootmap_size, start_pfn, max_low_pfn;
+
+ /*
+ * partially used pages are not usable - thus
+ * we are rounding upwards:
+ */
+ start_pfn = PFN_UP(__pa(&_end));
+
+ find_max_pfn();
+
+ max_low_pfn = find_max_low_pfn();
+
+#ifdef CONFIG_HIGHMEM
+ highstart_pfn = highend_pfn = max_pfn;
+ if (max_pfn > max_low_pfn) {
+ highstart_pfn = max_low_pfn;
+ }
+ printk(KERN_NOTICE "%ldMB HIGHMEM available.\n",
+ pages_to_mb(highend_pfn - highstart_pfn));
+#endif
+ printk(KERN_NOTICE "%ldMB LOWMEM available.\n",
+ pages_to_mb(max_low_pfn));
+ /*
+ * Initialize the boot-time allocator (with low memory only):
+ */
+ bootmap_size = init_bootmem(start_pfn, max_low_pfn);
+
+ register_bootmem_low_pages(max_low_pfn);
+
/*
* Reserve the bootmem bitmap itself as well. We do this in two
* steps (first step was init_bootmem()) because this catches
@@ -798,12 +755,13 @@
*/
acpi_reserve_bootmem();
#endif
-#ifdef CONFIG_X86_LOCAL_APIC
+#ifdef CONFIG_X86_FIND_SMP_CONFIG
/*
* Find and reserve possible boot-time SMP configuration:
*/
find_smp_config();
#endif
+
#ifdef CONFIG_BLK_DEV_INITRD
if (LOADER_TYPE && INITRD_START) {
if (INITRD_START + INITRD_SIZE <= (max_low_pfn << PAGE_SHIFT)) {
@@ -821,32 +779,21 @@
}
}
#endif
+ return max_low_pfn;
+}
+#else
+extern unsigned long setup_memory(void);
+#endif /* !CONFIG_DISCONTIGMEM */
- /*
- * NOTE: before this point _nobody_ is allowed to allocate
- * any memory using the bootmem allocator.
- */
-
-#ifdef CONFIG_SMP
- smp_alloc_memory(); /* AP processor realmode stacks in low memory*/
-#endif
- paging_init();
-#ifdef CONFIG_ACPI_BOOT
- /*
- * Parse the ACPI tables for possible boot-time SMP configuration.
- */
- acpi_boot_init(*cmdline_p);
-#endif
-#ifdef CONFIG_X86_LOCAL_APIC
- if (smp_found_config)
- get_smp_config();
-#endif
-
+/*
+ * Request address space for all standard RAM and ROM resources
+ * and also for regions reported as reserved by the e820.
+ */
+static void __init register_memory(unsigned long max_low_pfn)
+{
+ unsigned long low_mem_size;
+ int i;
- /*
- * Request address space for all standard RAM and ROM resources
- * and also for regions reported as reserved by the e820.
- */
probe_roms();
for (i = 0; i < e820.nr_map; i++) {
struct resource *res;
@@ -883,6 +830,77 @@
low_mem_size = ((max_low_pfn << PAGE_SHIFT) + 0xfffff) & ~0xfffff;
if (low_mem_size > pci_mem_start)
pci_mem_start = low_mem_size;
+}
+
+void __init setup_arch(char **cmdline_p)
+{
+ unsigned long max_low_pfn;
+
+ pre_setup_arch_hook();
+ early_cpu_init();
+
+ ROOT_DEV = ORIG_ROOT_DEV;
+ drive_info = DRIVE_INFO;
+ screen_info = SCREEN_INFO;
+ apm_info.bios = APM_BIOS_INFO;
+ saved_videomode = VIDEO_MODE;
+ printk("Video mode to be used for restore is %lx\n", saved_videomode);
+ if( SYS_DESC_TABLE.length != 0 ) {
+ MCA_bus = SYS_DESC_TABLE.table[3] &0x2;
+ machine_id = SYS_DESC_TABLE.table[0];
+ machine_submodel_id = SYS_DESC_TABLE.table[1];
+ BIOS_revision = SYS_DESC_TABLE.table[2];
+ }
+ aux_device_present = AUX_DEVICE_INFO;
+
+#ifdef CONFIG_BLK_DEV_RAM
+ rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
+ rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
+ rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
+#endif
+ ARCH_SETUP
+ setup_memory_region();
+ copy_edd();
+
+ if (!MOUNT_ROOT_RDONLY)
+ root_mountflags &= ~MS_RDONLY;
+ init_mm.start_code = (unsigned long) &_text;
+ init_mm.end_code = (unsigned long) &_etext;
+ init_mm.end_data = (unsigned long) &_edata;
+ init_mm.brk = (unsigned long) &_end;
+
+ code_resource.start = virt_to_phys(&_text);
+ code_resource.end = virt_to_phys(&_etext)-1;
+ data_resource.start = virt_to_phys(&_etext);
+ data_resource.end = virt_to_phys(&_edata)-1;
+
+ parse_cmdline_early(cmdline_p);
+
+ max_low_pfn = setup_memory();
+
+ /*
+ * NOTE: before this point _nobody_ is allowed to allocate
+ * any memory using the bootmem allocator.
+ */
+
+#ifdef CONFIG_SMP
+ smp_alloc_memory(); /* AP processor realmode stacks in low memory*/
+#endif
+ paging_init();
+#ifdef CONFIG_ACPI_BOOT
+ /*
+ * Parse the ACPI tables for possible boot-time SMP configuration.
+ */
+ if (!acpi_disabled)
+ acpi_boot_init(*cmdline_p);
+#endif
+#ifdef CONFIG_X86_LOCAL_APIC
+ if (smp_found_config)
+ get_smp_config();
+#endif
+
+ register_memory(max_low_pfn);
+
dmi_scan_machine();
}
@@ -894,6 +912,8 @@
}
__setup("nohighio", highio_setup);
+
+#include "setup_arch_post.h"
/*
* Local Variables:
* mode:c
--- dmi_scan.c DELETED ---
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