commonlib/region: Turn addrspace_32bit into a more official API

We had the addrspace_32bit rdev in prog_loaders.c for a while to help
represent memory ranges as an rdev, and we've found it useful for a
couple of things that have nothing to do with program loading. This
patch moves the concept straight into commonlib/region.c so it is no
longer anchored in such a weird place, and easier to use in unit tests.
Also expand the concept to the whole address space (there's no real need
to restrict it to 32 bits in 64-bit environments) and introduce an
rdev_chain_mem() helper function to make it a bit easier to use. Replace
some direct uses of struct mem_region_device with this new API where it
seems to make sense.

Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: Ie4c763b77f77d227768556a9528681d771a08dca
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52533
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Julius Werner
2021-04-16 16:48:32 -07:00
parent b03e497ef1
commit c893197352
16 changed files with 117 additions and 147 deletions

View File

@@ -267,14 +267,14 @@ int smmstore_clear_region(void)
/* Implementation of Version 2 */
static bool store_initialized;
static struct mem_region_device mdev_com_buf;
static struct region_device mdev_com_buf;
static int smmstore_rdev_chain(struct region_device *rdev)
{
if (!store_initialized)
return -1;
return rdev_chain_full(rdev, &mdev_com_buf.rdev);
return rdev_chain_full(rdev, &mdev_com_buf);
}
/**
@@ -289,7 +289,7 @@ int smmstore_init(void *buf, size_t len)
if (store_initialized)
return -1;
mem_region_device_rw_init(&mdev_com_buf, buf, len);
rdev_chain_mem_rw(&mdev_com_buf, buf, len);
store_initialized = true;