[PATCH] Clean up and refactor i386 sub-architecture setup
Clean up and refactor i386 sub-architecture setup. This change moves all the code from the asm-i386/mach-*/setup_arch_pre/post.h headers, into arch/i386/mach-*/setup.c. mach-*/setup_arch_pre.h is renamed to setup_arch.h, and contains only things which should be in header files. It is purely code-motion; there should be no functional changes at all. Several functions in arch/i386/kernel/setup.c needed to be made non-static so that they're visible to the code in mach-*/setup.c. asm-i386/setup.h is used to hold the prototypes for these functions. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Cc: Zachary Amsden <zach@vmware.com> Cc: Chris Wright <chrisw@sous-sol.org> Cc: Christian Limpach <Christian.Limpach@cl.cam.ac.uk> Cc: Martin Bligh <mbligh@google.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Andrey Panin <pazke@donpac.ru> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jeremy Fitzhardinge
Linus Torvalds
Родитель
e6a1530d69
Коммит
e75eac33b5
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@ -61,7 +61,7 @@
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#include <asm/io_apic.h>
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#include <asm/ist.h>
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#include <asm/io.h>
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#include "setup_arch_pre.h"
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#include <setup_arch.h>
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#include <bios_ebda.h>
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/* Forward Declaration. */
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@ -411,8 +411,8 @@ static void __init limit_regions(unsigned long long size)
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}
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}
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static void __init add_memory_region(unsigned long long start,
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unsigned long long size, int type)
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void __init add_memory_region(unsigned long long start,
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unsigned long long size, int type)
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{
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int x;
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@ -475,7 +475,7 @@ static struct change_member *change_point[2*E820MAX] __initdata;
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static struct e820entry *overlap_list[E820MAX] __initdata;
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static struct e820entry new_bios[E820MAX] __initdata;
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static int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map)
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int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map)
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{
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struct change_member *change_tmp;
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unsigned long current_type, last_type;
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@ -644,7 +644,7 @@ static int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map)
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* thinkpad 560x, for example, does not cooperate with the memory
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* detection code.)
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*/
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static int __init copy_e820_map(struct e820entry * biosmap, int nr_map)
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int __init copy_e820_map(struct e820entry * biosmap, int nr_map)
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{
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/* Only one memory region (or negative)? Ignore it */
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if (nr_map < 2)
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@ -702,12 +702,6 @@ static inline void copy_edd(void)
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}
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#endif
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/*
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* Do NOT EVER look at the BIOS memory size location.
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* It does not work on many machines.
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*/
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#define LOWMEMSIZE() (0x9f000)
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static void __init parse_cmdline_early (char ** cmdline_p)
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{
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char c = ' ', *to = command_line, *from = saved_command_line;
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@ -1424,8 +1418,6 @@ static void __init register_memory(void)
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pci_mem_start, gapstart, gapsize);
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}
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static char * __init machine_specific_memory_setup(void);
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#ifdef CONFIG_MCA
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static void set_mca_bus(int x)
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{
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@ -1708,7 +1700,6 @@ static __init int add_pcspkr(void)
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}
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device_initcall(add_pcspkr);
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#include "setup_arch_post.h"
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/*
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* Local Variables:
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* mode:c
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@ -8,6 +8,8 @@
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#include <linux/interrupt.h>
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#include <asm/acpi.h>
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#include <asm/arch_hooks.h>
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#include <asm/e820.h>
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#include <asm/setup.h>
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#ifdef CONFIG_HOTPLUG_CPU
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#define DEFAULT_SEND_IPI (1)
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@ -130,3 +132,44 @@ static int __init print_ipi_mode(void)
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}
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late_initcall(print_ipi_mode);
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/**
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* machine_specific_memory_setup - Hook for machine specific memory setup.
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*
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* Description:
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* This is included late in kernel/setup.c so that it can make
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* use of all of the static functions.
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**/
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char * __init machine_specific_memory_setup(void)
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{
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char *who;
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who = "BIOS-e820";
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/*
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* Try to copy the BIOS-supplied E820-map.
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*
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* Otherwise fake a memory map; one section from 0k->640k,
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* the next section from 1mb->appropriate_mem_k
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*/
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sanitize_e820_map(E820_MAP, &E820_MAP_NR);
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if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0) {
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unsigned long mem_size;
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/* compare results from other methods and take the greater */
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if (ALT_MEM_K < EXT_MEM_K) {
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mem_size = EXT_MEM_K;
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who = "BIOS-88";
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} else {
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mem_size = ALT_MEM_K;
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who = "BIOS-e801";
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}
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e820.nr_map = 0;
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add_memory_region(0, LOWMEMSIZE(), E820_RAM);
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add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
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}
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return who;
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}
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@ -10,6 +10,8 @@
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#include <asm/fixmap.h>
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#include <asm/arch_hooks.h>
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#include <asm/io.h>
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#include <asm/e820.h>
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#include <asm/setup.h>
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#include "cobalt.h"
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#include "piix4.h"
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@ -133,3 +135,50 @@ void __init time_init_hook(void)
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/* Wire cpu IDT entry to s/w handler (and Cobalt APIC to IDT) */
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setup_irq(0, &irq0);
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}
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/* Hook for machine specific memory setup. */
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#define MB (1024 * 1024)
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static unsigned long sgivwfb_mem_phys;
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static unsigned long sgivwfb_mem_size;
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long long mem_size __initdata = 0;
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char * __init machine_specific_memory_setup(void)
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{
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long long gfx_mem_size = 8 * MB;
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mem_size = ALT_MEM_K;
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if (!mem_size) {
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printk(KERN_WARNING "Bootloader didn't set memory size, upgrade it !\n");
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mem_size = 128 * MB;
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}
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/*
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* this hardcodes the graphics memory to 8 MB
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* it really should be sized dynamically (or at least
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* set as a boot param)
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*/
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if (!sgivwfb_mem_size) {
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printk(KERN_WARNING "Defaulting to 8 MB framebuffer size\n");
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sgivwfb_mem_size = 8 * MB;
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}
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/*
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* Trim to nearest MB
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*/
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sgivwfb_mem_size &= ~((1 << 20) - 1);
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sgivwfb_mem_phys = mem_size - gfx_mem_size;
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add_memory_region(0, LOWMEMSIZE(), E820_RAM);
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add_memory_region(HIGH_MEMORY, mem_size - sgivwfb_mem_size - HIGH_MEMORY, E820_RAM);
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add_memory_region(sgivwfb_mem_phys, sgivwfb_mem_size, E820_RESERVED);
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return "PROM";
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/* Remove gcc warnings */
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(void) sanitize_e820_map(NULL, NULL);
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(void) copy_e820_map(NULL, 0);
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}
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@ -7,6 +7,9 @@
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#include <linux/interrupt.h>
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#include <asm/acpi.h>
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#include <asm/arch_hooks.h>
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#include <asm/voyager.h>
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#include <asm/e820.h>
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#include <asm/setup.h>
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void __init pre_intr_init_hook(void)
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{
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@ -45,3 +48,74 @@ void __init time_init_hook(void)
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{
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setup_irq(0, &irq0);
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}
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/* Hook for machine specific memory setup. */
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char * __init machine_specific_memory_setup(void)
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{
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char *who;
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who = "NOT VOYAGER";
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if(voyager_level == 5) {
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__u32 addr, length;
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int i;
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who = "Voyager-SUS";
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e820.nr_map = 0;
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for(i=0; voyager_memory_detect(i, &addr, &length); i++) {
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add_memory_region(addr, length, E820_RAM);
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}
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return who;
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} else if(voyager_level == 4) {
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__u32 tom;
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__u16 catbase = inb(VOYAGER_SSPB_RELOCATION_PORT)<<8;
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/* select the DINO config space */
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outb(VOYAGER_DINO, VOYAGER_CAT_CONFIG_PORT);
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/* Read DINO top of memory register */
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tom = ((inb(catbase + 0x4) & 0xf0) << 16)
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+ ((inb(catbase + 0x5) & 0x7f) << 24);
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if(inb(catbase) != VOYAGER_DINO) {
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printk(KERN_ERR "Voyager: Failed to get DINO for L4, setting tom to EXT_MEM_K\n");
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tom = (EXT_MEM_K)<<10;
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}
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who = "Voyager-TOM";
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add_memory_region(0, 0x9f000, E820_RAM);
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/* map from 1M to top of memory */
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add_memory_region(1*1024*1024, tom - 1*1024*1024, E820_RAM);
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/* FIXME: Should check the ASICs to see if I need to
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* take out the 8M window. Just do it at the moment
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* */
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add_memory_region(8*1024*1024, 8*1024*1024, E820_RESERVED);
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return who;
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}
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who = "BIOS-e820";
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/*
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* Try to copy the BIOS-supplied E820-map.
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*
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* Otherwise fake a memory map; one section from 0k->640k,
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* the next section from 1mb->appropriate_mem_k
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*/
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sanitize_e820_map(E820_MAP, &E820_MAP_NR);
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if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0) {
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unsigned long mem_size;
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/* compare results from other methods and take the greater */
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if (ALT_MEM_K < EXT_MEM_K) {
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mem_size = EXT_MEM_K;
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who = "BIOS-88";
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} else {
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mem_size = ALT_MEM_K;
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who = "BIOS-e801";
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}
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e820.nr_map = 0;
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add_memory_region(0, LOWMEMSIZE(), E820_RAM);
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add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
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}
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return who;
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}
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@ -1,40 +0,0 @@
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/**
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* machine_specific_memory_setup - Hook for machine specific memory setup.
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*
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* Description:
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* This is included late in kernel/setup.c so that it can make
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* use of all of the static functions.
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**/
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static char * __init machine_specific_memory_setup(void)
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{
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char *who;
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who = "BIOS-e820";
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/*
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* Try to copy the BIOS-supplied E820-map.
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*
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* Otherwise fake a memory map; one section from 0k->640k,
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* the next section from 1mb->appropriate_mem_k
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*/
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sanitize_e820_map(E820_MAP, &E820_MAP_NR);
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if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0) {
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unsigned long mem_size;
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/* compare results from other methods and take the greater */
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if (ALT_MEM_K < EXT_MEM_K) {
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mem_size = EXT_MEM_K;
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who = "BIOS-88";
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} else {
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mem_size = ALT_MEM_K;
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who = "BIOS-e801";
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}
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e820.nr_map = 0;
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add_memory_region(0, LOWMEMSIZE(), E820_RAM);
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add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
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}
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return who;
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}
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@ -1,49 +0,0 @@
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/* Hook for machine specific memory setup.
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*
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* This is included late in kernel/setup.c so that it can make use of all of
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* the static functions. */
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#define MB (1024 * 1024)
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unsigned long sgivwfb_mem_phys;
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unsigned long sgivwfb_mem_size;
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long long mem_size __initdata = 0;
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static char * __init machine_specific_memory_setup(void)
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{
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long long gfx_mem_size = 8 * MB;
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mem_size = ALT_MEM_K;
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if (!mem_size) {
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printk(KERN_WARNING "Bootloader didn't set memory size, upgrade it !\n");
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mem_size = 128 * MB;
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}
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/*
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* this hardcodes the graphics memory to 8 MB
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* it really should be sized dynamically (or at least
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* set as a boot param)
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*/
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if (!sgivwfb_mem_size) {
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printk(KERN_WARNING "Defaulting to 8 MB framebuffer size\n");
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sgivwfb_mem_size = 8 * MB;
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}
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/*
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* Trim to nearest MB
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*/
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sgivwfb_mem_size &= ~((1 << 20) - 1);
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sgivwfb_mem_phys = mem_size - gfx_mem_size;
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add_memory_region(0, LOWMEMSIZE(), E820_RAM);
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add_memory_region(HIGH_MEMORY, mem_size - sgivwfb_mem_size - HIGH_MEMORY, E820_RAM);
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add_memory_region(sgivwfb_mem_phys, sgivwfb_mem_size, E820_RESERVED);
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return "PROM";
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/* Remove gcc warnings */
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(void) sanitize_e820_map(NULL, NULL);
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(void) copy_e820_map(NULL, 0);
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}
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@ -3,7 +3,7 @@
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/* Hook to call BIOS initialisation function */
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/* for voyager, pass the voyager BIOS/SUS info area to the detection
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/* for voyager, pass the voyager BIOS/SUS info area to the detection
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* routines */
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#define ARCH_SETUP voyager_detect(VOYAGER_BIOS_INFO);
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@ -1,73 +0,0 @@
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/* Hook for machine specific memory setup.
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*
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* This is included late in kernel/setup.c so that it can make use of all of
|
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* the static functions. */
|
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static char * __init machine_specific_memory_setup(void)
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{
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char *who;
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who = "NOT VOYAGER";
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if(voyager_level == 5) {
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__u32 addr, length;
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int i;
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who = "Voyager-SUS";
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e820.nr_map = 0;
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for(i=0; voyager_memory_detect(i, &addr, &length); i++) {
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add_memory_region(addr, length, E820_RAM);
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}
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return who;
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} else if(voyager_level == 4) {
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__u32 tom;
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__u16 catbase = inb(VOYAGER_SSPB_RELOCATION_PORT)<<8;
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/* select the DINO config space */
|
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outb(VOYAGER_DINO, VOYAGER_CAT_CONFIG_PORT);
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/* Read DINO top of memory register */
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tom = ((inb(catbase + 0x4) & 0xf0) << 16)
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+ ((inb(catbase + 0x5) & 0x7f) << 24);
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if(inb(catbase) != VOYAGER_DINO) {
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printk(KERN_ERR "Voyager: Failed to get DINO for L4, setting tom to EXT_MEM_K\n");
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||||
tom = (EXT_MEM_K)<<10;
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}
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who = "Voyager-TOM";
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add_memory_region(0, 0x9f000, E820_RAM);
|
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/* map from 1M to top of memory */
|
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add_memory_region(1*1024*1024, tom - 1*1024*1024, E820_RAM);
|
||||
/* FIXME: Should check the ASICs to see if I need to
|
||||
* take out the 8M window. Just do it at the moment
|
||||
* */
|
||||
add_memory_region(8*1024*1024, 8*1024*1024, E820_RESERVED);
|
||||
return who;
|
||||
}
|
||||
|
||||
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";
|
||||
}
|
||||
|
||||
e820.nr_map = 0;
|
||||
add_memory_region(0, LOWMEMSIZE(), E820_RAM);
|
||||
add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
|
||||
}
|
||||
return who;
|
||||
}
|
||||
|
|
@ -59,6 +59,21 @@ extern unsigned char boot_params[PARAM_SIZE];
|
|||
#define EDD_MBR_SIGNATURE ((unsigned int *) (PARAM+EDD_MBR_SIG_BUF))
|
||||
#define EDD_BUF ((struct edd_info *) (PARAM+EDDBUF))
|
||||
|
||||
/*
|
||||
* Do NOT EVER look at the BIOS memory size location.
|
||||
* It does not work on many machines.
|
||||
*/
|
||||
#define LOWMEMSIZE() (0x9f000)
|
||||
|
||||
struct e820entry;
|
||||
|
||||
char * __init machine_specific_memory_setup(void);
|
||||
|
||||
int __init copy_e820_map(struct e820entry * biosmap, int nr_map);
|
||||
int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map);
|
||||
void __init add_memory_region(unsigned long long start,
|
||||
unsigned long long size, int type);
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
|
||||
#endif /* _i386_SETUP_H */
|
||||
|
|
|
|||
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