1 files changed, 403 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c
new file mode 100644
index 000000000000..f6ba0eef4489
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c
@@ -0,0 +1,403 @@
+/*
+ * 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
+ *
+ */
+
+#include "dm_services.h"
+#include "dcn10_opp.h"
+#include "reg_helper.h"
+
+#define REG(reg) \
+	(oppn10->regs->reg)
+
+#undef FN
+#define FN(reg_name, field_name) \
+	oppn10->opp_shift->field_name, oppn10->opp_mask->field_name
+
+#define CTX \
+	oppn10->base.ctx
+
+
+/************* FORMATTER ************/
+
+/**
+ *	set_truncation
+ *	1) set truncation depth: 0 for 18 bpp or 1 for 24 bpp
+ *	2) enable truncation
+ *	3) HW remove 12bit FMT support for DCE11 power saving reason.
+ */
+static void opp1_set_truncation(
+		struct dcn10_opp *oppn10,
+		const struct bit_depth_reduction_params *params)
+{
+	REG_UPDATE_3(FMT_BIT_DEPTH_CONTROL,
+		FMT_TRUNCATE_EN, params->flags.TRUNCATE_ENABLED,
+		FMT_TRUNCATE_DEPTH, params->flags.TRUNCATE_DEPTH,
+		FMT_TRUNCATE_MODE, params->flags.TRUNCATE_MODE);
+}
+
+static void opp1_set_spatial_dither(
+	struct dcn10_opp *oppn10,
+	const struct bit_depth_reduction_params *params)
+{
+	/*Disable spatial (random) dithering*/
+	REG_UPDATE_7(FMT_BIT_DEPTH_CONTROL,
+			FMT_SPATIAL_DITHER_EN, 0,
+			FMT_SPATIAL_DITHER_MODE, 0,
+			FMT_SPATIAL_DITHER_DEPTH, 0,
+			FMT_TEMPORAL_DITHER_EN, 0,
+			FMT_HIGHPASS_RANDOM_ENABLE, 0,
+			FMT_FRAME_RANDOM_ENABLE, 0,
+			FMT_RGB_RANDOM_ENABLE, 0);
+
+
+	/* only use FRAME_COUNTER_MAX if frameRandom == 1*/
+	if (params->flags.FRAME_RANDOM == 1) {
+		if (params->flags.SPATIAL_DITHER_DEPTH == 0 || params->flags.SPATIAL_DITHER_DEPTH == 1) {
+			REG_UPDATE_2(FMT_CONTROL,
+					FMT_SPATIAL_DITHER_FRAME_COUNTER_MAX, 15,
+					FMT_SPATIAL_DITHER_FRAME_COUNTER_BIT_SWAP, 2);
+		} else if (params->flags.SPATIAL_DITHER_DEPTH == 2) {
+			REG_UPDATE_2(FMT_CONTROL,
+					FMT_SPATIAL_DITHER_FRAME_COUNTER_MAX, 3,
+					FMT_SPATIAL_DITHER_FRAME_COUNTER_BIT_SWAP, 1);
+		} else {
+			return;
+		}
+	} else {
+		REG_UPDATE_2(FMT_CONTROL,
+				FMT_SPATIAL_DITHER_FRAME_COUNTER_MAX, 0,
+				FMT_SPATIAL_DITHER_FRAME_COUNTER_BIT_SWAP, 0);
+	}
+
+	/*Set seed for random values for
+	 * spatial dithering for R,G,B channels*/
+
+	REG_SET(FMT_DITHER_RAND_R_SEED, 0,
+			FMT_RAND_R_SEED, params->r_seed_value);
+
+	REG_SET(FMT_DITHER_RAND_G_SEED, 0,
+			FMT_RAND_G_SEED, params->g_seed_value);
+
+	REG_SET(FMT_DITHER_RAND_B_SEED, 0,
+			FMT_RAND_B_SEED, params->b_seed_value);
+
+	/* FMT_OFFSET_R_Cr  31:16 0x0 Setting the zero
+	 * offset for the R/Cr channel, lower 4LSB
+	 * is forced to zeros. Typically set to 0
+	 * RGB and 0x80000 YCbCr.
+	 */
+	/* FMT_OFFSET_G_Y   31:16 0x0 Setting the zero
+	 * offset for the G/Y  channel, lower 4LSB is
+	 * forced to zeros. Typically set to 0 RGB
+	 * and 0x80000 YCbCr.
+	 */
+	/* FMT_OFFSET_B_Cb  31:16 0x0 Setting the zero
+	 * offset for the B/Cb channel, lower 4LSB is
+	 * forced to zeros. Typically set to 0 RGB and
+	 * 0x80000 YCbCr.
+	 */
+
+	REG_UPDATE_6(FMT_BIT_DEPTH_CONTROL,
+			/*Enable spatial dithering*/
+			FMT_SPATIAL_DITHER_EN, params->flags.SPATIAL_DITHER_ENABLED,
+			/* Set spatial dithering mode
+			 * (default is Seed patterrn AAAA...)
+			 */
+			FMT_SPATIAL_DITHER_MODE, params->flags.SPATIAL_DITHER_MODE,
+			/*Set spatial dithering bit depth*/
+			FMT_SPATIAL_DITHER_DEPTH, params->flags.SPATIAL_DITHER_DEPTH,
+			/*Disable High pass filter*/
+			FMT_HIGHPASS_RANDOM_ENABLE, params->flags.HIGHPASS_RANDOM,
+			/*Reset only at startup*/
+			FMT_FRAME_RANDOM_ENABLE, params->flags.FRAME_RANDOM,
+			/*Set RGB data dithered with x^28+x^3+1*/
+			FMT_RGB_RANDOM_ENABLE, params->flags.RGB_RANDOM);
+}
+
+void opp1_program_bit_depth_reduction(
+	struct output_pixel_processor *opp,
+	const struct bit_depth_reduction_params *params)
+{
+	struct dcn10_opp *oppn10 = TO_DCN10_OPP(opp);
+
+	opp1_set_truncation(oppn10, params);
+	opp1_set_spatial_dither(oppn10, params);
+	/* TODO
+	 * set_temporal_dither(oppn10, params);
+	 */
+}
+
+/**
+ *	set_pixel_encoding
+ *
+ *	Set Pixel Encoding
+ *		0: RGB 4:4:4 or YCbCr 4:4:4 or YOnly
+ *		1: YCbCr 4:2:2
+ */
+static void opp1_set_pixel_encoding(
+	struct dcn10_opp *oppn10,
+	const struct clamping_and_pixel_encoding_params *params)
+{
+	switch (params->pixel_encoding)	{
+
+	case PIXEL_ENCODING_RGB:
+	case PIXEL_ENCODING_YCBCR444:
+		REG_UPDATE(FMT_CONTROL, FMT_PIXEL_ENCODING, 0);
+		break;
+	case PIXEL_ENCODING_YCBCR422:
+		REG_UPDATE(FMT_CONTROL, FMT_PIXEL_ENCODING, 1);
+		break;
+	case PIXEL_ENCODING_YCBCR420:
+		REG_UPDATE(FMT_CONTROL, FMT_PIXEL_ENCODING, 2);
+		break;
+	default:
+		break;
+	}
+}
+
+/**
+ *	Set Clamping
+ *	1) Set clamping format based on bpc - 0 for 6bpc (No clamping)
+ *		1 for 8 bpc
+ *		2 for 10 bpc
+ *		3 for 12 bpc
+ *		7 for programable
+ *	2) Enable clamp if Limited range requested
+ */
+static void opp1_set_clamping(
+	struct dcn10_opp *oppn10,
+	const struct clamping_and_pixel_encoding_params *params)
+{
+	REG_UPDATE_2(FMT_CLAMP_CNTL,
+			FMT_CLAMP_DATA_EN, 0,
+			FMT_CLAMP_COLOR_FORMAT, 0);
+
+	switch (params->clamping_level) {
+	case CLAMPING_FULL_RANGE:
+		REG_UPDATE_2(FMT_CLAMP_CNTL,
+				FMT_CLAMP_DATA_EN, 1,
+				FMT_CLAMP_COLOR_FORMAT, 0);
+		break;
+	case CLAMPING_LIMITED_RANGE_8BPC:
+		REG_UPDATE_2(FMT_CLAMP_CNTL,
+				FMT_CLAMP_DATA_EN, 1,
+				FMT_CLAMP_COLOR_FORMAT, 1);
+		break;
+	case CLAMPING_LIMITED_RANGE_10BPC:
+		REG_UPDATE_2(FMT_CLAMP_CNTL,
+				FMT_CLAMP_DATA_EN, 1,
+				FMT_CLAMP_COLOR_FORMAT, 2);
+
+		break;
+	case CLAMPING_LIMITED_RANGE_12BPC:
+		REG_UPDATE_2(FMT_CLAMP_CNTL,
+				FMT_CLAMP_DATA_EN, 1,
+				FMT_CLAMP_COLOR_FORMAT, 3);
+		break;
+	case CLAMPING_LIMITED_RANGE_PROGRAMMABLE:
+		/* TODO */
+	default:
+		break;
+	}
+
+}
+
+void opp1_set_dyn_expansion(
+	struct output_pixel_processor *opp,
+	enum dc_color_space color_sp,
+	enum dc_color_depth color_dpth,
+	enum signal_type signal)
+{
+	struct dcn10_opp *oppn10 = TO_DCN10_OPP(opp);
+
+	REG_UPDATE_2(FMT_DYNAMIC_EXP_CNTL,
+			FMT_DYNAMIC_EXP_EN, 0,
+			FMT_DYNAMIC_EXP_MODE, 0);
+
+	/*00 - 10-bit -> 12-bit dynamic expansion*/
+	/*01 - 8-bit  -> 12-bit dynamic expansion*/
+	if (signal == SIGNAL_TYPE_HDMI_TYPE_A ||
+		signal == SIGNAL_TYPE_DISPLAY_PORT ||
+		signal == SIGNAL_TYPE_DISPLAY_PORT_MST ||
+		signal == SIGNAL_TYPE_VIRTUAL) {
+		switch (color_dpth) {
+		case COLOR_DEPTH_888:
+			REG_UPDATE_2(FMT_DYNAMIC_EXP_CNTL,
+				FMT_DYNAMIC_EXP_EN, 1,
+				FMT_DYNAMIC_EXP_MODE, 1);
+			break;
+		case COLOR_DEPTH_101010:
+			REG_UPDATE_2(FMT_DYNAMIC_EXP_CNTL,
+				FMT_DYNAMIC_EXP_EN, 1,
+				FMT_DYNAMIC_EXP_MODE, 0);
+			break;
+		case COLOR_DEPTH_121212:
+			REG_UPDATE_2(FMT_DYNAMIC_EXP_CNTL,
+				FMT_DYNAMIC_EXP_EN, 1,/*otherwise last two bits are zero*/
+				FMT_DYNAMIC_EXP_MODE, 0);
+			break;
+		default:
+			break;
+		}
+	}
+}
+
+static void opp1_program_clamping_and_pixel_encoding(
+	struct output_pixel_processor *opp,
+	const struct clamping_and_pixel_encoding_params *params)
+{
+	struct dcn10_opp *oppn10 = TO_DCN10_OPP(opp);
+
+	opp1_set_clamping(oppn10, params);
+	opp1_set_pixel_encoding(oppn10, params);
+}
+
+void opp1_program_fmt(
+	struct output_pixel_processor *opp,
+	struct bit_depth_reduction_params *fmt_bit_depth,
+	struct clamping_and_pixel_encoding_params *clamping)
+{
+	struct dcn10_opp *oppn10 = TO_DCN10_OPP(opp);
+
+	if (clamping->pixel_encoding == PIXEL_ENCODING_YCBCR420)
+		REG_UPDATE(FMT_MAP420_MEMORY_CONTROL, FMT_MAP420MEM_PWR_FORCE, 0);
+
+	/* dithering is affected by <CrtcSourceSelect>, hence should be
+	 * programmed afterwards */
+	opp1_program_bit_depth_reduction(
+		opp,
+		fmt_bit_depth);
+
+	opp1_program_clamping_and_pixel_encoding(
+		opp,
+		clamping);
+
+	return;
+}
+
+void opp1_program_stereo(
+	struct output_pixel_processor *opp,
+	bool enable,
+	const struct dc_crtc_timing *timing)
+{
+	struct dcn10_opp *oppn10 = TO_DCN10_OPP(opp);
+
+	uint32_t active_width = timing->h_addressable - timing->h_border_right - timing->h_border_right;
+	uint32_t space1_size = timing->v_total - timing->v_addressable;
+	/* TODO: confirm computation of space2_size */
+	uint32_t space2_size = timing->v_total - timing->v_addressable;
+
+	if (!enable) {
+		active_width = 0;
+		space1_size = 0;
+		space2_size = 0;
+	}
+
+	/* TODO: for which cases should FMT_STEREOSYNC_OVERRIDE be set? */
+	REG_UPDATE(FMT_CONTROL, FMT_STEREOSYNC_OVERRIDE, 0);
+
+	REG_UPDATE(OPPBUF_CONTROL, OPPBUF_ACTIVE_WIDTH, active_width);
+
+	/* Program OPPBUF_3D_VACT_SPACE1_SIZE and OPPBUF_VACT_SPACE2_SIZE registers
+	 * In 3D progressive frames, Vactive space happens only in between the 2 frames,
+	 * so only need to program OPPBUF_3D_VACT_SPACE1_SIZE
+	 * In 3D alternative frames, left and right frames, top and bottom field.
+	 */
+	if (timing->timing_3d_format == TIMING_3D_FORMAT_FRAME_ALTERNATE)
+		REG_UPDATE(OPPBUF_3D_PARAMETERS_0, OPPBUF_3D_VACT_SPACE2_SIZE, space2_size);
+	else
+		REG_UPDATE(OPPBUF_3D_PARAMETERS_0, OPPBUF_3D_VACT_SPACE1_SIZE, space1_size);
+
+	/* TODO: Is programming of OPPBUF_DUMMY_DATA_R/G/B needed? */
+	/*
+	REG_UPDATE(OPPBUF_3D_PARAMETERS_0,
+			OPPBUF_DUMMY_DATA_R, data_r);
+	REG_UPDATE(OPPBUF_3D_PARAMETERS_1,
+			OPPBUF_DUMMY_DATA_G, data_g);
+	REG_UPDATE(OPPBUF_3D_PARAMETERS_1,
+			OPPBUF_DUMMY_DATA_B, _data_b);
+	*/
+}
+
+void opp1_program_oppbuf(
+	struct output_pixel_processor *opp,
+	struct oppbuf_params *oppbuf)
+{
+	struct dcn10_opp *oppn10 = TO_DCN10_OPP(opp);
+
+	/* Program the oppbuf active width to be the frame width from mpc */
+	REG_UPDATE(OPPBUF_CONTROL, OPPBUF_ACTIVE_WIDTH, oppbuf->active_width);
+
+	/* Specifies the number of segments in multi-segment mode (DP-MSO operation)
+	 * description  "In 1/2/4 segment mode, specifies the horizontal active width in pixels of the display panel.
+	 * In 4 segment split left/right mode, specifies the horizontal 1/2 active width in pixels of the display panel.
+	 * Used to determine segment boundaries in multi-segment mode. Used to determine the width of the vertical active space in 3D frame packed modes.
+	 * OPPBUF_ACTIVE_WIDTH must be integer divisible by the total number of segments."
+	 */
+	REG_UPDATE(OPPBUF_CONTROL, OPPBUF_DISPLAY_SEGMENTATION, oppbuf->mso_segmentation);
+
+	/* description  "Specifies the number of overlap pixels (1-8 overlapping pixels supported), used in multi-segment mode (DP-MSO operation)" */
+	REG_UPDATE(OPPBUF_CONTROL, OPPBUF_OVERLAP_PIXEL_NUM, oppbuf->mso_overlap_pixel_num);
+
+	/* description  "Specifies the number of times a pixel is replicated (0-15 pixel replications supported).
+	 * A value of 0 disables replication. The total number of times a pixel is output is OPPBUF_PIXEL_REPETITION + 1."
+	 */
+	REG_UPDATE(OPPBUF_CONTROL, OPPBUF_PIXEL_REPETITION, oppbuf->pixel_repetition);
+
+}
+
+/*****************************************/
+/* Constructor, Destructor               */
+/*****************************************/
+
+void opp1_destroy(struct output_pixel_processor **opp)
+{
+	kfree(TO_DCN10_OPP(*opp));
+	*opp = NULL;
+}
+
+static struct opp_funcs dcn10_opp_funcs = {
+		.opp_set_dyn_expansion = opp1_set_dyn_expansion,
+		.opp_program_fmt = opp1_program_fmt,
+		.opp_program_bit_depth_reduction = opp1_program_bit_depth_reduction,
+		.opp_program_stereo = opp1_program_stereo,
+		.opp_destroy = opp1_destroy
+};
+
+void dcn10_opp_construct(struct dcn10_opp *oppn10,
+	struct dc_context *ctx,
+	uint32_t inst,
+	const struct dcn10_opp_registers *regs,
+	const struct dcn10_opp_shift *opp_shift,
+	const struct dcn10_opp_mask *opp_mask)
+{
+
+	oppn10->base.ctx = ctx;
+	oppn10->base.inst = inst;
+	oppn10->base.funcs = &dcn10_opp_funcs;
+
+	oppn10->regs = regs;
+	oppn10->opp_shift = opp_shift;
+	oppn10->opp_mask = opp_mask;
+}