linux/arch/x86/mm/mm_internal.h
Juergen Gross bd809af16e x86: Enable PAT to use cache mode translation tables
Update the translation tables from cache mode to pgprot values
according to the PAT settings. This enables changing the cache
attributes of a PAT index in just one place without having to change
at the users side.

With this change it is possible to use the same kernel with different
PAT configurations, e.g. supporting Xen.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Toshi Kani <toshi.kani@hp.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stefan.bader@canonical.com
Cc: xen-devel@lists.xensource.com
Cc: ville.syrjala@linux.intel.com
Cc: david.vrabel@citrix.com
Cc: jbeulich@suse.com
Cc: plagnioj@jcrosoft.com
Cc: tomi.valkeinen@ti.com
Cc: bhelgaas@google.com
Link: http://lkml.kernel.org/r/1415019724-4317-18-git-send-email-jgross@suse.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-11-16 11:04:26 +01:00

21 lines
519 B
C

#ifndef __X86_MM_INTERNAL_H
#define __X86_MM_INTERNAL_H
void *alloc_low_pages(unsigned int num);
static inline void *alloc_low_page(void)
{
return alloc_low_pages(1);
}
void early_ioremap_page_table_range_init(void);
unsigned long kernel_physical_mapping_init(unsigned long start,
unsigned long end,
unsigned long page_size_mask);
void zone_sizes_init(void);
extern int after_bootmem;
void update_cache_mode_entry(unsigned entry, enum page_cache_mode cache);
#endif /* __X86_MM_INTERNAL_H */