summaryrefslogtreecommitdiff
path: root/src/lib/imd.c
AgeCommit message (Collapse)Author
2015-05-11imd: don't recover on limit == 0Aaron Durbin
If the limit of the large starting region was set with a NULL pointer then the limit field will be 0. If the limit is zero then no attempt to recover is necessary as there is no region to recover. This prevented an early call cbmem_find() from hanging a rambi device. The config was with vboot enabled and was way before memory init in the sequence. Change-Id: I7163d93c31ecef2c108a6dde0206dc0b6f158b5c Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/10175 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2015-04-22coreboot: tiered imdAaron Durbin
A tiered imd allows for both small and large allocations. The small allocations are packed into a large region. Utilizing a tiered imd reduces internal fragmentation within the imd. Change-Id: I0bcd6473aacbc714844815b24d77cb5c542abdd0 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/8623 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2015-04-22coreboot: add imd libraryAaron Durbin
The imd (internal memory database) library provides a way to track memory regions by assigning ids to each region. The implementation is a direct descendant of dynamic cbmem. The intent is to replace the existing mechanisms which do similar things: dynamic cbmem, stage cache, etc. Differences between dynamic cbmem and imd: - All structures/objects are relative to one another. There are no absolute pointers serialized to memory. - Allow limiting the size of the idm. i.e. provide a maximum memory usage. - Allow setting the size of the root structure which allows control of the number of allocations to track. Change-Id: Id7438cff80d396a594d6a7330d09b45bb4fedf2e Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/8621 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marc.jones@se-eng.com>