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authorArjan van de Ven <arjan@linux.intel.com>2006-04-07 19:49:27 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2006-04-09 11:53:50 -0700
commit952223683ec989e86328c24808fdb962c4dbeb0a (patch)
tree0c7473d4469cba883bf880bbaa04900960806742 /include
parenteee5a9fa63c97366cdea6ab3aa2ed9e3601812d0 (diff)
[PATCH] x86_64: Introduce e820_all_mapped
Introduce a e820_all_mapped() function which checks if the entire range <start,end> is mapped with type. This is done by moving the local start variable to the end of each known-good region; if at the end of the function the start address is still before end, there must be a part that's not of the correct type; otherwise it's a good region. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-i386/e820.h4
-rw-r--r--include/asm-x86_64/e820.h1
2 files changed, 5 insertions, 0 deletions
diff --git a/include/asm-i386/e820.h b/include/asm-i386/e820.h
index edf65be21a92..ca82acb8cb1f 100644
--- a/include/asm-i386/e820.h
+++ b/include/asm-i386/e820.h
@@ -35,6 +35,10 @@ struct e820map {
};
extern struct e820map e820;
+
+extern int e820_all_mapped(unsigned long start, unsigned long end,
+ unsigned type);
+
#endif/*!__ASSEMBLY__*/
#endif/*__E820_HEADER*/
diff --git a/include/asm-x86_64/e820.h b/include/asm-x86_64/e820.h
index 4192d0ef093b..93b51df51687 100644
--- a/include/asm-x86_64/e820.h
+++ b/include/asm-x86_64/e820.h
@@ -48,6 +48,7 @@ extern unsigned long e820_end_of_ram(void);
extern void e820_reserve_resources(void);
extern void e820_print_map(char *who);
extern int e820_any_mapped(unsigned long start, unsigned long end, unsigned type);
+extern int e820_all_mapped(unsigned long start, unsigned long end, unsigned type);
extern void e820_bootmem_free(pg_data_t *pgdat, unsigned long start,unsigned long end);
extern void e820_setup_gap(void);