The shmem console command was looping with the wrong iterators,
doing an infinite loop when there was more than one allocated or
free block.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BRANCH=none
BUG=none
TEST=build software with CONFIG_MALLOC and CONFIG_CMD_SHMEM, then run
'shmem' on the console at different time without hitting watchdog reset.
Change-Id: I93a9cff3811669ab895fa8753d1571e90aeb4f33
Reviewed-on: https://chromium-review.googlesource.com/943070
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
We want to build the shmalloc common code in test mode *only* for the
shmalloc test not for all test binaries (which are missing the helper
functions).
The previous version was broken for any board declaring CONFIG_SHMALLOC
(but none were excepted cr50 which has tests disabled)
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BRANCH=none
BUG=b:72360575
TEST=emerge-meowth chromeos-ec
Change-Id: Ic89c74569fbadbc75d9090b084adab8f40ddfa5d
Reviewed-on: https://chromium-review.googlesource.com/909210
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
The new code allows to replace the existing one buffer at a time
shared memory facility with a malloc/free implementation. A new
configuration option is being provided (CONFIG_MALLOC).
The names of functions allocating and freeing memory are not being
changed to allow to switch between the two implementations seamlessly.
A double linked list of buffers is used to keep track of free and
allocated memory. During initialization the entire free memory block
is considered a single free buffer. No allocations/frees are allowed
from within interrupts. The control structures are protected by a
semaphore, so allocate and free invocation could be blocking.
A test is added which randomly allocates and frees memory, continuing
until all branches in the allocate and free functions are taken.
BUG=chrome-os-partner:
TEST=make buildall -j succeeds, which includes testing the new
malloc/free implementation.
Change-Id: I5e71c0190c6c247ec73bb459f66a6d7a06e3d248
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/420466
Reviewed-by: Randall Spangler <rspangler@chromium.org>
