arch/x86: Fix car_active for CONFIG_NO_CAR_GLOBAL_MIGRATION

Change 76ab2b7 ("arch/x86: allow global .bss objects without
CAR_GLOBAL") allowed use of global .bss objects and hence moved around
the macros resulting in car_active returning 0 even for those boards
where CAR is actually active but do not require global migration. This
resulted in boards getting stuck when doing a reset in verstage because
the code flow incorrectly assumed that there was no CAR active and
hence triggered a cache invalidate.

This change fixes the above issue by returning 1 for car_active if
ENV_CACHE_AS_RAM is set even if global migration is not required.

BUG=b:109717603
TEST=Verified that board reset does not trigger cache invalidate in
verstage and does not result in board hang.

Change-Id: I182f3e4277c57d6c50f7fcac2be72514896b3c61
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/29555
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Peichao Li <peichao.wang@bitland.corp-partner.google.com>
Reviewed-by: Nick Chen <nickchen@ami.corp-partner.google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Justin TerAvest <teravest@chromium.org>

0 files changed, 0 insertions, 0 deletions