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-rw-r--r--arch/i386/Makefile2
-rw-r--r--arch/i386/power/Makefile2
-rw-r--r--arch/i386/power/cpu.c133
-rw-r--r--arch/i386/power/suspend.c172
-rw-r--r--arch/i386/power/swsusp.S78
5 files changed, 1 insertions, 386 deletions
diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index 93492b37061..da64799484a 100644
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -110,7 +110,7 @@ drivers-$(CONFIG_MATH_EMULATION) += arch/x86/math-emu/
drivers-$(CONFIG_PCI) += arch/i386/pci/
# must be linked after kernel/
drivers-$(CONFIG_OPROFILE) += arch/i386/oprofile/
-drivers-$(CONFIG_PM) += arch/i386/power/
+drivers-$(CONFIG_PM) += arch/x86/power/
drivers-$(CONFIG_FB) += arch/i386/video/
CFLAGS += $(mflags-y)
diff --git a/arch/i386/power/Makefile b/arch/i386/power/Makefile
deleted file mode 100644
index d764ec95006..00000000000
--- a/arch/i386/power/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-$(CONFIG_PM) += cpu.o
-obj-$(CONFIG_HIBERNATION) += swsusp.o suspend.o
diff --git a/arch/i386/power/cpu.c b/arch/i386/power/cpu.c
deleted file mode 100644
index 998fd3ec0d6..00000000000
--- a/arch/i386/power/cpu.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * Suspend support specific for i386.
- *
- * Distribute under GPLv2
- *
- * Copyright (c) 2002 Pavel Machek <pavel@suse.cz>
- * Copyright (c) 2001 Patrick Mochel <mochel@osdl.org>
- */
-
-#include <linux/module.h>
-#include <linux/suspend.h>
-#include <asm/mtrr.h>
-#include <asm/mce.h>
-
-static struct saved_context saved_context;
-
-unsigned long saved_context_ebx;
-unsigned long saved_context_esp, saved_context_ebp;
-unsigned long saved_context_esi, saved_context_edi;
-unsigned long saved_context_eflags;
-
-void __save_processor_state(struct saved_context *ctxt)
-{
- mtrr_save_fixed_ranges(NULL);
- kernel_fpu_begin();
-
- /*
- * descriptor tables
- */
- store_gdt(&ctxt->gdt);
- store_idt(&ctxt->idt);
- store_tr(ctxt->tr);
-
- /*
- * segment registers
- */
- savesegment(es, ctxt->es);
- savesegment(fs, ctxt->fs);
- savesegment(gs, ctxt->gs);
- savesegment(ss, ctxt->ss);
-
- /*
- * control registers
- */
- ctxt->cr0 = read_cr0();
- ctxt->cr2 = read_cr2();
- ctxt->cr3 = read_cr3();
- ctxt->cr4 = read_cr4();
-}
-
-void save_processor_state(void)
-{
- __save_processor_state(&saved_context);
-}
-
-static void do_fpu_end(void)
-{
- /*
- * Restore FPU regs if necessary.
- */
- kernel_fpu_end();
-}
-
-static void fix_processor_context(void)
-{
- int cpu = smp_processor_id();
- struct tss_struct * t = &per_cpu(init_tss, cpu);
-
- set_tss_desc(cpu,t); /* This just modifies memory; should not be necessary. But... This is necessary, because 386 hardware has concept of busy TSS or some similar stupidity. */
-
- load_TR_desc(); /* This does ltr */
- load_LDT(&current->active_mm->context); /* This does lldt */
-
- /*
- * Now maybe reload the debug registers
- */
- if (current->thread.debugreg[7]){
- set_debugreg(current->thread.debugreg[0], 0);
- set_debugreg(current->thread.debugreg[1], 1);
- set_debugreg(current->thread.debugreg[2], 2);
- set_debugreg(current->thread.debugreg[3], 3);
- /* no 4 and 5 */
- set_debugreg(current->thread.debugreg[6], 6);
- set_debugreg(current->thread.debugreg[7], 7);
- }
-
-}
-
-void __restore_processor_state(struct saved_context *ctxt)
-{
- /*
- * control registers
- */
- write_cr4(ctxt->cr4);
- write_cr3(ctxt->cr3);
- write_cr2(ctxt->cr2);
- write_cr0(ctxt->cr0);
-
- /*
- * now restore the descriptor tables to their proper values
- * ltr is done i fix_processor_context().
- */
- load_gdt(&ctxt->gdt);
- load_idt(&ctxt->idt);
-
- /*
- * segment registers
- */
- loadsegment(es, ctxt->es);
- loadsegment(fs, ctxt->fs);
- loadsegment(gs, ctxt->gs);
- loadsegment(ss, ctxt->ss);
-
- /*
- * sysenter MSRs
- */
- if (boot_cpu_has(X86_FEATURE_SEP))
- enable_sep_cpu();
-
- fix_processor_context();
- do_fpu_end();
- mtrr_ap_init();
- mcheck_init(&boot_cpu_data);
-}
-
-void restore_processor_state(void)
-{
- __restore_processor_state(&saved_context);
-}
-
-/* Needed by apm.c */
-EXPORT_SYMBOL(save_processor_state);
-EXPORT_SYMBOL(restore_processor_state);
diff --git a/arch/i386/power/suspend.c b/arch/i386/power/suspend.c
deleted file mode 100644
index a0020b913f3..00000000000
--- a/arch/i386/power/suspend.c
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- * Suspend support specific for i386 - temporary page tables
- *
- * Distribute under GPLv2
- *
- * Copyright (c) 2006 Rafael J. Wysocki <rjw@sisk.pl>
- */
-
-#include <linux/suspend.h>
-#include <linux/bootmem.h>
-
-#include <asm/system.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-
-/* Defined in arch/i386/power/swsusp.S */
-extern int restore_image(void);
-
-/* References to section boundaries */
-extern const void __nosave_begin, __nosave_end;
-
-/* Pointer to the temporary resume page tables */
-pgd_t *resume_pg_dir;
-
-/* The following three functions are based on the analogous code in
- * arch/i386/mm/init.c
- */
-
-/*
- * Create a middle page table on a resume-safe page and put a pointer to it in
- * the given global directory entry. This only returns the gd entry
- * in non-PAE compilation mode, since the middle layer is folded.
- */
-static pmd_t *resume_one_md_table_init(pgd_t *pgd)
-{
- pud_t *pud;
- pmd_t *pmd_table;
-
-#ifdef CONFIG_X86_PAE
- pmd_table = (pmd_t *)get_safe_page(GFP_ATOMIC);
- if (!pmd_table)
- return NULL;
-
- set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT));
- pud = pud_offset(pgd, 0);
-
- BUG_ON(pmd_table != pmd_offset(pud, 0));
-#else
- pud = pud_offset(pgd, 0);
- pmd_table = pmd_offset(pud, 0);
-#endif
-
- return pmd_table;
-}
-
-/*
- * Create a page table on a resume-safe page and place a pointer to it in
- * a middle page directory entry.
- */
-static pte_t *resume_one_page_table_init(pmd_t *pmd)
-{
- if (pmd_none(*pmd)) {
- pte_t *page_table = (pte_t *)get_safe_page(GFP_ATOMIC);
- if (!page_table)
- return NULL;
-
- set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE));
-
- BUG_ON(page_table != pte_offset_kernel(pmd, 0));
-
- return page_table;
- }
-
- return pte_offset_kernel(pmd, 0);
-}
-
-/*
- * This maps the physical memory to kernel virtual address space, a total
- * of max_low_pfn pages, by creating page tables starting from address
- * PAGE_OFFSET. The page tables are allocated out of resume-safe pages.
- */
-static int resume_physical_mapping_init(pgd_t *pgd_base)
-{
- unsigned long pfn;
- pgd_t *pgd;
- pmd_t *pmd;
- pte_t *pte;
- int pgd_idx, pmd_idx;
-
- pgd_idx = pgd_index(PAGE_OFFSET);
- pgd = pgd_base + pgd_idx;
- pfn = 0;
-
- for (; pgd_idx < PTRS_PER_PGD; pgd++, pgd_idx++) {
- pmd = resume_one_md_table_init(pgd);
- if (!pmd)
- return -ENOMEM;
-
- if (pfn >= max_low_pfn)
- continue;
-
- for (pmd_idx = 0; pmd_idx < PTRS_PER_PMD; pmd++, pmd_idx++) {
- if (pfn >= max_low_pfn)
- break;
-
- /* Map with big pages if possible, otherwise create
- * normal page tables.
- * NOTE: We can mark everything as executable here
- */
- if (cpu_has_pse) {
- set_pmd(pmd, pfn_pmd(pfn, PAGE_KERNEL_LARGE_EXEC));
- pfn += PTRS_PER_PTE;
- } else {
- pte_t *max_pte;
-
- pte = resume_one_page_table_init(pmd);
- if (!pte)
- return -ENOMEM;
-
- max_pte = pte + PTRS_PER_PTE;
- for (; pte < max_pte; pte++, pfn++) {
- if (pfn >= max_low_pfn)
- break;
-
- set_pte(pte, pfn_pte(pfn, PAGE_KERNEL_EXEC));
- }
- }
- }
- }
- return 0;
-}
-
-static inline void resume_init_first_level_page_table(pgd_t *pg_dir)
-{
-#ifdef CONFIG_X86_PAE
- int i;
-
- /* Init entries of the first-level page table to the zero page */
- for (i = 0; i < PTRS_PER_PGD; i++)
- set_pgd(pg_dir + i,
- __pgd(__pa(empty_zero_page) | _PAGE_PRESENT));
-#endif
-}
-
-int swsusp_arch_resume(void)
-{
- int error;
-
- resume_pg_dir = (pgd_t *)get_safe_page(GFP_ATOMIC);
- if (!resume_pg_dir)
- return -ENOMEM;
-
- resume_init_first_level_page_table(resume_pg_dir);
- error = resume_physical_mapping_init(resume_pg_dir);
- if (error)
- return error;
-
- /* We have got enough memory and from now on we cannot recover */
- restore_image();
- return 0;
-}
-
-/*
- * pfn_is_nosave - check if given pfn is in the 'nosave' section
- */
-
-int pfn_is_nosave(unsigned long pfn)
-{
- unsigned long nosave_begin_pfn = __pa_symbol(&__nosave_begin) >> PAGE_SHIFT;
- unsigned long nosave_end_pfn = PAGE_ALIGN(__pa_symbol(&__nosave_end)) >> PAGE_SHIFT;
- return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn);
-}
diff --git a/arch/i386/power/swsusp.S b/arch/i386/power/swsusp.S
deleted file mode 100644
index 53662e05b39..00000000000
--- a/arch/i386/power/swsusp.S
+++ /dev/null
@@ -1,78 +0,0 @@
-.text
-
-/* Originally gcc generated, modified by hand
- *
- * This may not use any stack, nor any variable that is not "NoSave":
- *
- * Its rewriting one kernel image with another. What is stack in "old"
- * image could very well be data page in "new" image, and overwriting
- * your own stack under you is bad idea.
- */
-
-#include <linux/linkage.h>
-#include <asm/segment.h>
-#include <asm/page.h>
-#include <asm/asm-offsets.h>
-
- .text
-
-ENTRY(swsusp_arch_suspend)
-
- movl %esp, saved_context_esp
- movl %ebx, saved_context_ebx
- movl %ebp, saved_context_ebp
- movl %esi, saved_context_esi
- movl %edi, saved_context_edi
- pushfl ; popl saved_context_eflags
-
- call swsusp_save
- ret
-
-ENTRY(restore_image)
- movl resume_pg_dir, %ecx
- subl $__PAGE_OFFSET, %ecx
- movl %ecx, %cr3
-
- movl restore_pblist, %edx
- .p2align 4,,7
-
-copy_loop:
- testl %edx, %edx
- jz done
-
- movl pbe_address(%edx), %esi
- movl pbe_orig_address(%edx), %edi
-
- movl $1024, %ecx
- rep
- movsl
-
- movl pbe_next(%edx), %edx
- jmp copy_loop
- .p2align 4,,7
-
-done:
- /* go back to the original page tables */
- movl $swapper_pg_dir, %ecx
- subl $__PAGE_OFFSET, %ecx
- movl %ecx, %cr3
- /* Flush TLB, including "global" things (vmalloc) */
- movl mmu_cr4_features, %eax
- movl %eax, %edx
- andl $~(1<<7), %edx; # PGE
- movl %edx, %cr4; # turn off PGE
- movl %cr3, %ecx; # flush TLB
- movl %ecx, %cr3
- movl %eax, %cr4; # turn PGE back on
-
- movl saved_context_esp, %esp
- movl saved_context_ebp, %ebp
- movl saved_context_ebx, %ebx
- movl saved_context_esi, %esi
- movl saved_context_edi, %edi
-
- pushl saved_context_eflags ; popfl
-
- xorl %eax, %eax
-
- ret
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