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authorJuergen Gross <jgross@suse.com>2014-11-03 14:01:59 +0100
committerThomas Gleixner <tglx@linutronix.de>2014-11-16 11:04:26 +0100
commite00c8cc93c1ac01ecd5049929a50fb47b62bb041 (patch)
treea3833abca982fc685332340bb604dc925eb91c24 /arch/x86/mm/pat_internal.h
parentb14097bd911c2554b0b5271b3a6b2d84044d1843 (diff)
downloadop-kernel-dev-e00c8cc93c1ac01ecd5049929a50fb47b62bb041.zip
op-kernel-dev-e00c8cc93c1ac01ecd5049929a50fb47b62bb041.tar.gz
x86: Use new cache mode type in memtype related functions
Instead of directly using the cache mode bits in the pte switch to using the cache mode type. Based-on-patch-by: Stefan Bader <stefan.bader@canonical.com> Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Cc: stefan.bader@canonical.com Cc: xen-devel@lists.xensource.com Cc: konrad.wilk@oracle.com Cc: ville.syrjala@linux.intel.com Cc: david.vrabel@citrix.com Cc: jbeulich@suse.com Cc: toshi.kani@hp.com Cc: plagnioj@jcrosoft.com Cc: tomi.valkeinen@ti.com Cc: bhelgaas@google.com Link: http://lkml.kernel.org/r/1415019724-4317-14-git-send-email-jgross@suse.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/mm/pat_internal.h')
-rw-r--r--arch/x86/mm/pat_internal.h22
1 files changed, 12 insertions, 10 deletions
diff --git a/arch/x86/mm/pat_internal.h b/arch/x86/mm/pat_internal.h
index 77e5ba1..f641162 100644
--- a/arch/x86/mm/pat_internal.h
+++ b/arch/x86/mm/pat_internal.h
@@ -10,30 +10,32 @@ struct memtype {
u64 start;
u64 end;
u64 subtree_max_end;
- unsigned long type;
+ enum page_cache_mode type;
struct rb_node rb;
};
-static inline char *cattr_name(unsigned long flags)
+static inline char *cattr_name(enum page_cache_mode pcm)
{
- switch (flags & _PAGE_CACHE_MASK) {
- case _PAGE_CACHE_UC: return "uncached";
- case _PAGE_CACHE_UC_MINUS: return "uncached-minus";
- case _PAGE_CACHE_WB: return "write-back";
- case _PAGE_CACHE_WC: return "write-combining";
- default: return "broken";
+ switch (pcm) {
+ case _PAGE_CACHE_MODE_UC: return "uncached";
+ case _PAGE_CACHE_MODE_UC_MINUS: return "uncached-minus";
+ case _PAGE_CACHE_MODE_WB: return "write-back";
+ case _PAGE_CACHE_MODE_WC: return "write-combining";
+ case _PAGE_CACHE_MODE_WT: return "write-through";
+ case _PAGE_CACHE_MODE_WP: return "write-protected";
+ default: return "broken";
}
}
#ifdef CONFIG_X86_PAT
extern int rbt_memtype_check_insert(struct memtype *new,
- unsigned long *new_type);
+ enum page_cache_mode *new_type);
extern struct memtype *rbt_memtype_erase(u64 start, u64 end);
extern struct memtype *rbt_memtype_lookup(u64 addr);
extern int rbt_memtype_copy_nth_element(struct memtype *out, loff_t pos);
#else
static inline int rbt_memtype_check_insert(struct memtype *new,
- unsigned long *new_type)
+ enum page_cache_mode *new_type)
{ return 0; }
static inline struct memtype *rbt_memtype_erase(u64 start, u64 end)
{ return NULL; }
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