[S] Change in coreboot[master]: include/cpu/amd/mtrr: return uint32_t from get_top_of_mem_below_4gb

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/74610 )

Change subject: include/cpu/amd/mtrr: return uint32_t from get_top_of_mem_below_4gb
......................................................................

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 
Change-Id: I6b463a17f2db3b7a99ff3572f318c9c22aac7431
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74610
Tested-by: build bot (Jenkins) 
Reviewed-by: Martin Roth 
---
M src/include/cpu/amd/mtrr.h
1 file changed, 17 insertions(+), 1 deletion(-)

Approvals:
  build bot (Jenkins): Verified
  Martin Roth: Looks good to me, approved

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;
 }