include/cpu/amd/mtrr: return uint32_t from get_top_of_mem_below_4gb
The top of memory below 4GB will always fit into 32 bits, so change the
return type accordingly.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I6b463a17f2db3b7a99ff3572f318c9c22aac7431
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74610
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
diff --git a/src/include/cpu/amd/mtrr.h b/src/include/cpu/amd/mtrr.h
index b8b820c..e96dc90 100644
--- a/src/include/cpu/amd/mtrr.h
+++ b/src/include/cpu/amd/mtrr.h
@@ -65,7 +65,7 @@
);
}
-static inline uint64_t get_top_of_mem_below_4gb(void)
+static inline uint32_t get_top_of_mem_below_4gb(void)
{
return rdmsr(TOP_MEM).lo;
}