drm/amdgpu/display: Add dml support for DCN

Display mode lib handles clock, watermark, and bandwidth
calculations for DCN.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 148 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dml_common_defs.c b/drivers/gpu/drm/amd/display/dc/dml/dml_common_defs.c
new file mode 100644
index 000000000000..21349a022de3
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dml/dml_common_defs.c
@@ -0,0 +1,148 @@
+/*
+ * Copyright 2017 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
+ *
+ */
+
+#include "dml_common_defs.h"
+#include "../calcs/dcn_calc_math.h"
+
+double dml_min(double a, double b)
+{
+	return (double) dcn_bw_min2(a, b);
+}
+
+double dml_max(double a, double b)
+{
+	return (double) dcn_bw_max2(a, b);
+}
+
+double dml_ceil(double a)
+{
+	return (double) dcn_bw_ceil2(a, 1);
+}
+
+double dml_floor(double a)
+{
+	return (double) dcn_bw_floor2(a, 1);
+}
+
+double dml_round(double a)
+{
+	double round_pt = 0.5;
+	double ceil = dml_ceil(a);
+	double floor = dml_floor(a);
+
+	if (a - floor >= round_pt)
+		return ceil;
+	else
+		return floor;
+}
+
+int dml_log2(double x)
+{
+	return dml_round((double)dcn_bw_log(x, 2));
+}
+
+double dml_pow(double a, int exp)
+{
+	return (double) dcn_bw_pow(a, exp);
+}
+
+unsigned int dml_round_to_multiple(
+	unsigned int num,
+	unsigned int multiple,
+	bool up)
+{
+	unsigned int remainder;
+
+	if (multiple == 0)
+		return num;
+
+	remainder = num % multiple;
+
+	if (remainder == 0)
+		return num;
+
+	if (up)
+		return (num + multiple - remainder);
+	else
+		return (num - remainder);
+}
+
+double dml_fmod(double f, int val)
+{
+	return (double) dcn_bw_mod(f, val);
+}
+
+double dml_ceil_2(double f)
+{
+	return (double) dcn_bw_ceil2(f, 2);
+}
+
+bool dml_util_is_420(enum source_format_class sorce_format)
+{
+	bool val = false;
+
+	switch (sorce_format) {
+	case dm_444_16:
+		val = false;
+		break;
+	case dm_444_32:
+		val = false;
+		break;
+	case dm_444_64:
+		val = false;
+		break;
+	case dm_420_8:
+		val = true;
+		break;
+	case dm_420_10:
+		val = true;
+		break;
+	case dm_422_8:
+		val = false;
+		break;
+	case dm_422_10:
+		val = false;
+		break;
+	default:
+		BREAK_TO_DEBUGGER();
+	}
+
+	return val;
+}
+
+double dml_ceil_ex(double x, double granularity)
+{
+	return (double) dcn_bw_ceil2(x, granularity);
+}
+
+double dml_floor_ex(double x, double granularity)
+{
+	return (double) dcn_bw_floor2(x, granularity);
+}
+
+double dml_log(double x, double base)
+{
+	return (double) dcn_bw_log(x, base);
+}