diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2013-03-26 21:22:42 -0500 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2013-03-29 20:11:28 +0100 |
| commit | f6f6e13c46a4320f03fdf1286e37e05a8d047e56 (patch) | |
| tree | 318cf14f97202dea0b94474701f03599642e92b3 | |
| parent | e63d5d83e438ac3710f68f9cddddd5f1e294dbf6 (diff) | |
memrange: add 2 new range_entry routines
Two convenience functions are added to operate on a range_entry:
- range_entry_update_tag() - update the entry's tag
- memranges_next_entry() - get the next entry after the one provide
These functions will be used by a follow on patch to the MTRR code
to allow hole punching in WB region when the default MTRR type is
UC.
Change-Id: I3c2be19c8ea1bbbdf7736c867e4a2aa82df2d611
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2924
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
| -rw-r--r-- | src/include/memrange.h | 9 | ||||
| -rw-r--r-- | src/lib/memrange.c | 6 |
2 files changed, 15 insertions, 0 deletions
diff --git a/src/include/memrange.h b/src/include/memrange.h index 23dae6a30a..0e69b2ffeb 100644 --- a/src/include/memrange.h +++ b/src/include/memrange.h @@ -61,6 +61,12 @@ static inline unsigned long range_entry_tag(const struct range_entry *r) return r->tag; } +static inline void range_entry_update_tag(struct range_entry *r, + unsigned long new_tag) +{ + r->tag = new_tag; +} + /* Iterate over each entry in a memranges structure. Ranges cannot * be deleted while processing each entry as the list cannot be safely * traversed after such an operation. @@ -104,4 +110,7 @@ void memranges_create_hole(struct memranges *ranges, void memranges_insert(struct memranges *ranges, resource_t base, resource_t size, unsigned long tag); +/* Returns next entry after the provided entry. NULL if r is last. */ +struct range_entry *memranges_next_entry(struct memranges *ranges, + const struct range_entry *r); #endif /* MEMRANGE_H_ */ diff --git a/src/lib/memrange.c b/src/lib/memrange.c index c376d52816..1a16ef73ab 100644 --- a/src/lib/memrange.c +++ b/src/lib/memrange.c @@ -321,3 +321,9 @@ void memranges_fill_holes_up_to(struct memranges *ranges, /* Merge all entries that were newly added. */ merge_neighbor_entries(ranges); } + +struct range_entry *memranges_next_entry(struct memranges *ranges, + const struct range_entry *r) +{ + return r->next; +} |