memranges: add memranges_update_tag() functionality
The memranges_update_tag() function replaces all instances that are tagged with old_tag and update to new_tag. This can be helpful in the MTRR code by adjusting the address space if certain memory types cause the MTRR usage to become too large. Change-Id: Ie5c405204de2fdd9fd1dd5d6190b223925d6d318 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/5150 Tested-by: build bot (Jenkins) Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
This commit is contained in:
parent
3d6ffe76f8
commit
ed9307db13
|
@ -110,6 +110,10 @@ void memranges_create_hole(struct memranges *ranges,
|
|||
void memranges_insert(struct memranges *ranges,
|
||||
resource_t base, resource_t size, unsigned long tag);
|
||||
|
||||
/* Update all entries with old_tag to new_tag. */
|
||||
void memranges_update_tag(struct memranges *ranges, unsigned long old_tag,
|
||||
unsigned long new_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);
|
||||
|
|
|
@ -204,6 +204,19 @@ static void merge_add_memranges(struct memranges *ranges,
|
|||
merge_neighbor_entries(ranges);
|
||||
}
|
||||
|
||||
void memranges_update_tag(struct memranges *ranges, unsigned long old_tag,
|
||||
unsigned long new_tag)
|
||||
{
|
||||
struct range_entry *r;
|
||||
|
||||
memranges_each_entry(r, ranges) {
|
||||
if (range_entry_tag(r) == old_tag)
|
||||
range_entry_update_tag(r, new_tag);
|
||||
}
|
||||
|
||||
merge_neighbor_entries(ranges);
|
||||
}
|
||||
|
||||
typedef void (*range_action_t)(struct memranges *ranges,
|
||||
resource_t begin, resource_t end,
|
||||
unsigned long tag);
|
||||
|
|
Loading…
Reference in New Issue