Revision 9e3a9d1ed8cc8db93e5c53e9a5b09065bd95de8b authored by Len Brown on 06 February 2009, 19:00:56 UTC, committed by Len Brown on 06 February 2009, 19:00:56 UTC
When ACPI is disabled in the BIOS of this VIA C3 box, it invalidates the RSDP, which Linux notices: ACPI Error (tbxfroot-0218): A valid RSDP was not found [20080926] Bug Linux neglected to disable ACPI at that stage, and later scribbled on smp_found_config: ACPI: No APIC-table, disabling MPS But this box doesn't run well in legacy PIC mode, it needed IOAPIC mode to perform correctly: http://lkml.org/lkml/2009/2/5/39 So exit ACPI mode cleanly when we first detect that it is hopeless. Signed-off-by: Len Brown <len.brown@intel.com>
1 parent f3b39f1
motorola_pgalloc.h
#ifndef _MOTOROLA_PGALLOC_H
#define _MOTOROLA_PGALLOC_H
#include <asm/tlb.h>
#include <asm/tlbflush.h>
extern pmd_t *get_pointer_table(void);
extern int free_pointer_table(pmd_t *);
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
{
pte_t *pte;
pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
if (pte) {
__flush_page_to_ram(pte);
flush_tlb_kernel_page(pte);
nocache_page(pte);
}
return pte;
}
static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
{
cache_page(pte);
free_page((unsigned long) pte);
}
static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
{
struct page *page = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
pte_t *pte;
if(!page)
return NULL;
pte = kmap(page);
if (pte) {
__flush_page_to_ram(pte);
flush_tlb_kernel_page(pte);
nocache_page(pte);
}
kunmap(pte);
pgtable_page_ctor(page);
return page;
}
static inline void pte_free(struct mm_struct *mm, pgtable_t page)
{
pgtable_page_dtor(page);
cache_page(kmap(page));
kunmap(page);
__free_page(page);
}
static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page)
{
pgtable_page_dtor(page);
cache_page(kmap(page));
kunmap(page);
__free_page(page);
}
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
{
return get_pointer_table();
}
static inline int pmd_free(struct mm_struct *mm, pmd_t *pmd)
{
return free_pointer_table(pmd);
}
static inline int __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
{
return free_pointer_table(pmd);
}
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
{
pmd_free(mm, (pmd_t *)pgd);
}
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
return (pgd_t *)get_pointer_table();
}
static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
{
pmd_set(pmd, pte);
}
static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t page)
{
pmd_set(pmd, page_address(page));
}
#define pmd_pgtable(pmd) pmd_page(pmd)
static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
{
pgd_set(pgd, pmd);
}
#endif /* _MOTOROLA_PGALLOC_H */
![swh spinner](/static/img/swh-spinner.gif)
Computing file changes ...