mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-27 06:20:50 +07:00
e00c8cc93c
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>
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
#ifndef __PAT_INTERNAL_H_
|
|
#define __PAT_INTERNAL_H_
|
|
|
|
extern int pat_debug_enable;
|
|
|
|
#define dprintk(fmt, arg...) \
|
|
do { if (pat_debug_enable) printk(KERN_INFO fmt, ##arg); } while (0)
|
|
|
|
struct memtype {
|
|
u64 start;
|
|
u64 end;
|
|
u64 subtree_max_end;
|
|
enum page_cache_mode type;
|
|
struct rb_node rb;
|
|
};
|
|
|
|
static inline char *cattr_name(enum page_cache_mode pcm)
|
|
{
|
|
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,
|
|
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,
|
|
enum page_cache_mode *new_type)
|
|
{ return 0; }
|
|
static inline struct memtype *rbt_memtype_erase(u64 start, u64 end)
|
|
{ return NULL; }
|
|
static inline struct memtype *rbt_memtype_lookup(u64 addr)
|
|
{ return NULL; }
|
|
static inline int rbt_memtype_copy_nth_element(struct memtype *out, loff_t pos)
|
|
{ return 0; }
|
|
#endif
|
|
|
|
#endif /* __PAT_INTERNAL_H_ */
|