1 files changed, 129 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/include/fixed32_32.h b/drivers/gpu/drm/amd/display/include/fixed32_32.h
new file mode 100644
index 000000000000..9c70341fe026
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/include/fixed32_32.h
@@ -0,0 +1,129 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+
+#ifndef __DAL_FIXED32_32_H__
+#define __DAL_FIXED32_32_H__
+
+#include "os_types.h"
+
+struct fixed32_32 {
+	uint64_t value;
+};
+
+static const struct fixed32_32 dal_fixed32_32_zero = { 0 };
+static const struct fixed32_32 dal_fixed32_32_one = { 0x100000000LL };
+static const struct fixed32_32 dal_fixed32_32_half = { 0x80000000LL };
+
+struct fixed32_32 dal_fixed32_32_from_fraction(uint32_t n, uint32_t d);
+static inline struct fixed32_32 dal_fixed32_32_from_int(uint32_t value)
+{
+	struct fixed32_32 fx;
+
+	fx.value = (uint64_t)value<<32;
+	return fx;
+}
+
+struct fixed32_32 dal_fixed32_32_add(
+	struct fixed32_32 lhs,
+	struct fixed32_32 rhs);
+struct fixed32_32 dal_fixed32_32_add_int(
+	struct fixed32_32 lhs,
+	uint32_t rhs);
+struct fixed32_32 dal_fixed32_32_sub(
+	struct fixed32_32 lhs,
+	struct fixed32_32 rhs);
+struct fixed32_32 dal_fixed32_32_sub_int(
+	struct fixed32_32 lhs,
+	uint32_t rhs);
+struct fixed32_32 dal_fixed32_32_mul(
+	struct fixed32_32 lhs,
+	struct fixed32_32 rhs);
+struct fixed32_32 dal_fixed32_32_mul_int(
+	struct fixed32_32 lhs,
+	uint32_t rhs);
+struct fixed32_32 dal_fixed32_32_div(
+	struct fixed32_32 lhs,
+	struct fixed32_32 rhs);
+struct fixed32_32 dal_fixed32_32_div_int(
+	struct fixed32_32 lhs,
+	uint32_t rhs);
+
+static inline struct fixed32_32 dal_fixed32_32_min(struct fixed32_32 lhs,
+						   struct fixed32_32 rhs)
+{
+	return (lhs.value < rhs.value) ? lhs : rhs;
+}
+
+static inline struct fixed32_32 dal_fixed32_32_max(struct fixed32_32 lhs,
+						   struct fixed32_32 rhs)
+{
+	return (lhs.value > rhs.value) ? lhs : rhs;
+}
+
+static inline bool dal_fixed32_32_gt(struct fixed32_32 lhs, struct fixed32_32 rhs)
+{
+	return lhs.value > rhs.value;
+}
+
+static inline bool dal_fixed32_32_gt_int(struct fixed32_32 lhs, uint32_t rhs)
+{
+	return lhs.value > ((uint64_t)rhs<<32);
+}
+
+static inline bool dal_fixed32_32_lt(struct fixed32_32 lhs, struct fixed32_32 rhs)
+{
+	return lhs.value < rhs.value;
+}
+
+static inline bool dal_fixed32_32_lt_int(struct fixed32_32 lhs, uint32_t rhs)
+{
+	return lhs.value < ((uint64_t)rhs<<32);
+}
+
+static inline bool dal_fixed32_32_le(struct fixed32_32 lhs, struct fixed32_32 rhs)
+{
+	return lhs.value <= rhs.value;
+}
+
+static inline bool dal_fixed32_32_le_int(struct fixed32_32 lhs, uint32_t rhs)
+{
+	return lhs.value <= ((uint64_t)rhs<<32);
+}
+
+static inline bool dal_fixed32_32_eq(struct fixed32_32 lhs, struct fixed32_32 rhs)
+{
+	return lhs.value == rhs.value;
+}
+
+uint32_t dal_fixed32_32_ceil(struct fixed32_32 value);
+static inline uint32_t dal_fixed32_32_floor(struct fixed32_32 value)
+{
+	return value.value>>32;
+}
+
+uint32_t dal_fixed32_32_round(struct fixed32_32 value);
+
+#endif