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[RFC,2/3] drm/amd/display: Move bw_fixed macros to header file

Message ID 20220608010709.272962-3-maira.canal@usp.br (mailing list archive)
State New, archived
Headers show
Series drm/amd/display: Introduce KUnit to Display Mode Library | expand

Commit Message

Maíra Canal June 8, 2022, 1:07 a.m. UTC
The macros defined at bw_fixed are important mathematical definitions,
specifying masks to get the fractional part and the maximum and minimum
values of I64. In order to enable unit tests for bw_fixed, it is
relevant to have access to those macros. This commit moves the macros to
the header file, making it accessible to future unit tests.

Signed-off-by: Maíra Canal <maira.canal@usp.br>
---
 .../gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c    | 14 +-------------
 drivers/gpu/drm/amd/display/dc/inc/bw_fixed.h      | 14 ++++++++++++++
 2 files changed, 15 insertions(+), 13 deletions(-)
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Patch

diff --git a/drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c b/drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c
index 6ca288fb5fb9..d944570e5695 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/calcs/bw_fixed.c
@@ -26,19 +26,7 @@ 
 #include "bw_fixed.h"
 
 
-#define MIN_I64 \
-	(int64_t)(-(1LL << 63))
-
-#define MAX_I64 \
-	(int64_t)((1ULL << 63) - 1)
-
-#define FRACTIONAL_PART_MASK \
-	((1ULL << BW_FIXED_BITS_PER_FRACTIONAL_PART) - 1)
-
-#define GET_FRACTIONAL_PART(x) \
-	(FRACTIONAL_PART_MASK & (x))
-
-static uint64_t abs_i64(int64_t arg)
+uint64_t abs_i64(int64_t arg)
 {
 	if (arg >= 0)
 		return (uint64_t)(arg);
diff --git a/drivers/gpu/drm/amd/display/dc/inc/bw_fixed.h b/drivers/gpu/drm/amd/display/dc/inc/bw_fixed.h
index d1656c9d50df..064839425b96 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/bw_fixed.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/bw_fixed.h
@@ -33,12 +33,26 @@  struct bw_fixed {
 	int64_t value;
 };
 
+#define MIN_I64 \
+	(int64_t)(-(1ULL << 63))
+
+#define MAX_I64 \
+	(int64_t)((1ULL << 63) - 1)
+
+#define FRACTIONAL_PART_MASK \
+	((1ULL << BW_FIXED_BITS_PER_FRACTIONAL_PART) - 1)
+
+#define GET_FRACTIONAL_PART(x) \
+	(FRACTIONAL_PART_MASK & (x))
+
 #define BW_FIXED_MIN_I32 \
 	(int64_t)(-(1LL << (63 - BW_FIXED_BITS_PER_FRACTIONAL_PART)))
 
 #define BW_FIXED_MAX_I32 \
 	(int64_t)((1ULL << (63 - BW_FIXED_BITS_PER_FRACTIONAL_PART)) - 1)
 
+uint64_t abs_i64(int64_t arg);
+
 static inline struct bw_fixed bw_min2(const struct bw_fixed arg1,
 				      const struct bw_fixed arg2)
 {