drm/amd/display: Add DP 2.0 HPO Stream Encoder

HW Blocks:

        +--------+  +-----+  +------+
        |  OPTC  |  | HDA |  | HUBP |
        +--------+  +-----+  +------+
            |          |        |
            |          |        |
    HPO ====|==========|========|====
     |      |          v        |
     |      |       +-----+     |
     |      |       | APG |     |
     |      |       +-----+     |
     |      |          |        |
     v      v          v        v
           +----------------------+
           |  HPO Stream Encoder  |
           +----------------------+

[squash in warning fixes - Alex]
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

@@ -466,6 +466,39 @@ void dcn10_log_hw_state(struct dc *dc,
 
 	log_mpc_crc(dc, log_ctx);
 
+	{
+		int hpo_dp_link_enc_count = 0;
+
+		if (pool->hpo_dp_stream_enc_count > 0) {
+			DTN_INFO("DP HPO S_ENC:  Enabled  OTG   Format   Depth   Vid   SDP   Compressed  Link\n");
+			for (i = 0; i < pool->hpo_dp_stream_enc_count; i++) {
+				struct hpo_dp_stream_encoder_state hpo_dp_se_state = {0};
+				struct hpo_dp_stream_encoder *hpo_dp_stream_enc = pool->hpo_dp_stream_enc[i];
+
+				if (hpo_dp_stream_enc && hpo_dp_stream_enc->funcs->read_state) {
+					hpo_dp_stream_enc->funcs->read_state(hpo_dp_stream_enc, &hpo_dp_se_state);
+
+					DTN_INFO("[%d]:                 %d    %d   %6s       %d     %d     %d            %d     %d\n",
+							hpo_dp_stream_enc->id - ENGINE_ID_HPO_DP_0,
+							hpo_dp_se_state.stream_enc_enabled,
+							hpo_dp_se_state.otg_inst,
+							(hpo_dp_se_state.pixel_encoding == 0) ? "4:4:4" :
+									((hpo_dp_se_state.pixel_encoding == 1) ? "4:2:2" :
+									(hpo_dp_se_state.pixel_encoding == 2) ? "4:2:0" : "Y-Only"),
+							(hpo_dp_se_state.component_depth == 0) ? 6 :
+									((hpo_dp_se_state.component_depth == 1) ? 8 :
+									(hpo_dp_se_state.component_depth == 2) ? 10 : 12),
+							hpo_dp_se_state.vid_stream_enabled,
+							hpo_dp_se_state.sdp_enabled,
+							hpo_dp_se_state.compressed_format,
+							hpo_dp_se_state.mapped_to_link_enc);
+				}
+			}
+
+			DTN_INFO("\n");
+		}
+	}
+
 	DTN_INFO_END();
 }
 

drivers/gpu/drm/amd/display/dc/dcn31/Makefile

@@ -12,7 +12,7 @@
 
 DCN31 = dcn31_resource.o dcn31_hubbub.o dcn31_hwseq.o dcn31_init.o dcn31_hubp.o \
 	dcn31_dccg.o dcn31_optc.o dcn31_dio_link_encoder.o dcn31_panel_cntl.o \
-	dcn31_apg.o
+	dcn31_apg.o dcn31_hpo_dp_stream_encoder.o
 
 ifdef CONFIG_X86
 CFLAGS_$(AMDDALPATH)/dc/dcn31/dcn31_resource.o := -msse

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c

@@ -52,6 +52,7 @@
 #include "dcn30/dcn30_vpg.h"
 #include "dcn30/dcn30_afmt.h"
 #include "dcn30/dcn30_dio_stream_encoder.h"
+#include "dcn31/dcn31_hpo_dp_stream_encoder.h"
 #include "dcn31/dcn31_apg.h"
 #include "dcn31/dcn31_dio_link_encoder.h"
 #include "dce/dce_clock_source.h"
@@ -564,6 +565,26 @@ static const struct dcn10_link_enc_mask le_mask = {
 	DPP_REG_LIST_DCN30(id),\
 }
 
+#define hpo_dp_stream_encoder_reg_list(id)\
+[id] = {\
+	DCN3_1_HPO_DP_STREAM_ENC_REG_LIST(id)\
+}
+
+static const struct dcn31_hpo_dp_stream_encoder_registers hpo_dp_stream_enc_regs[] = {
+	hpo_dp_stream_encoder_reg_list(0),
+	hpo_dp_stream_encoder_reg_list(1),
+	hpo_dp_stream_encoder_reg_list(2),
+	hpo_dp_stream_encoder_reg_list(3),
+};
+
+static const struct dcn31_hpo_dp_stream_encoder_shift hpo_dp_se_shift = {
+	DCN3_1_HPO_DP_STREAM_ENC_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct dcn31_hpo_dp_stream_encoder_mask hpo_dp_se_mask = {
+	DCN3_1_HPO_DP_STREAM_ENC_MASK_SH_LIST(_MASK)
+};
+
 static const struct dcn3_dpp_registers dpp_regs[] = {
 	dpp_regs(0),
 	dpp_regs(1),
@@ -900,6 +921,7 @@ static const struct resource_caps res_cap_dcn31 = {
 	.num_audio = 5,
 	.num_stream_encoder = 5,
 	.num_dig_link_enc = 5,
+	.num_hpo_dp_stream_encoder = 4,
 	.num_pll = 5,
 	.num_dwb = 1,
 	.num_ddc = 5,
@@ -1330,6 +1352,52 @@ static struct stream_encoder *dcn31_stream_encoder_create(
 	return &enc1->base;
 }
 
+static struct hpo_dp_stream_encoder *dcn31_hpo_dp_stream_encoder_create(
+	enum engine_id eng_id,
+	struct dc_context *ctx)
+{
+	struct dcn31_hpo_dp_stream_encoder *hpo_dp_enc31;
+	struct vpg *vpg;
+	struct apg *apg;
+	uint32_t hpo_dp_inst;
+	uint32_t vpg_inst;
+	uint32_t apg_inst;
+
+	ASSERT((eng_id >= ENGINE_ID_HPO_DP_0) && (eng_id <= ENGINE_ID_HPO_DP_3));
+	hpo_dp_inst = eng_id - ENGINE_ID_HPO_DP_0;
+
+	/* Mapping of VPG register blocks to HPO DP block instance:
+	 * VPG[6] -> HPO_DP[0]
+	 * VPG[7] -> HPO_DP[1]
+	 * VPG[8] -> HPO_DP[2]
+	 * VPG[9] -> HPO_DP[3]
+	 */
+	vpg_inst = hpo_dp_inst + 6;
+
+	/* Mapping of APG register blocks to HPO DP block instance:
+	 * APG[0] -> HPO_DP[0]
+	 * APG[1] -> HPO_DP[1]
+	 * APG[2] -> HPO_DP[2]
+	 * APG[3] -> HPO_DP[3]
+	 */
+	apg_inst = hpo_dp_inst;
+
+	/* allocate HPO stream encoder and create VPG sub-block */
+	hpo_dp_enc31 = kzalloc(sizeof(struct dcn31_hpo_dp_stream_encoder), GFP_KERNEL);
+	vpg = dcn31_vpg_create(ctx, vpg_inst);
+	apg = dcn31_apg_create(ctx, apg_inst);
+
+	if (!hpo_dp_enc31 || !vpg || !apg)
+		return NULL;
+
+	dcn31_hpo_dp_stream_encoder_construct(hpo_dp_enc31, ctx, ctx->dc_bios,
+					hpo_dp_inst, eng_id, vpg, apg,
+					&hpo_dp_stream_enc_regs[hpo_dp_inst],
+					&hpo_dp_se_shift, &hpo_dp_se_mask);
+
+	return &hpo_dp_enc31->base;
+}
+
 static struct dce_hwseq *dcn31_hwseq_create(
 	struct dc_context *ctx)
 {
@@ -1347,6 +1415,7 @@ static const struct resource_create_funcs res_create_funcs = {
 	.read_dce_straps = read_dce_straps,
 	.create_audio = dcn31_create_audio,
 	.create_stream_encoder = dcn31_stream_encoder_create,
+	.create_hpo_dp_stream_encoder = dcn31_hpo_dp_stream_encoder_create,
 	.create_hwseq = dcn31_hwseq_create,
 };
 
@@ -1354,6 +1423,7 @@ static const struct resource_create_funcs res_create_maximus_funcs = {
 	.read_dce_straps = NULL,
 	.create_audio = NULL,
 	.create_stream_encoder = NULL,
+	.create_hpo_dp_stream_encoder = dcn31_hpo_dp_stream_encoder_create,
 	.create_hwseq = dcn31_hwseq_create,
 };
 
@@ -1376,6 +1446,21 @@ static void dcn31_resource_destruct(struct dcn31_resource_pool *pool)
 		}
 	}
 
+	for (i = 0; i < pool->base.hpo_dp_stream_enc_count; i++) {
+		if (pool->base.hpo_dp_stream_enc[i] != NULL) {
+			if (pool->base.hpo_dp_stream_enc[i]->vpg != NULL) {
+				kfree(DCN30_VPG_FROM_VPG(pool->base.hpo_dp_stream_enc[i]->vpg));
+				pool->base.hpo_dp_stream_enc[i]->vpg = NULL;
+			}
+			if (pool->base.hpo_dp_stream_enc[i]->apg != NULL) {
+				kfree(DCN31_APG_FROM_APG(pool->base.hpo_dp_stream_enc[i]->apg));
+				pool->base.hpo_dp_stream_enc[i]->apg = NULL;
+			}
+			kfree(DCN3_1_HPO_DP_STREAM_ENC_FROM_HPO_STREAM_ENC(pool->base.hpo_dp_stream_enc[i]));
+			pool->base.hpo_dp_stream_enc[i] = NULL;
+		}
+	}
+
 	for (i = 0; i < pool->base.res_cap->num_dsc; i++) {
 		if (pool->base.dscs[i] != NULL)
 			dcn20_dsc_destroy(&pool->base.dscs[i]);

drivers/gpu/drm/amd/display/dc/inc/core_types.h

@@ -246,6 +246,10 @@ struct resource_pool {
 	 */
 	unsigned int dig_link_enc_count;
 
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	unsigned int hpo_dp_stream_enc_count;
+	struct hpo_dp_stream_encoder *hpo_dp_stream_enc[MAX_HPO_DP2_ENCODERS];
+#endif
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 	struct dc_3dlut *mpc_lut[MAX_PIPES];
 	struct dc_transfer_func *mpc_shaper[MAX_PIPES];
@@ -298,6 +302,9 @@ struct stream_resource {
 	struct display_stream_compressor *dsc;
 	struct timing_generator *tg;
 	struct stream_encoder *stream_enc;
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	struct hpo_dp_stream_encoder *hpo_dp_stream_enc;
+#endif
 	struct audio *audio;
 
 	struct pixel_clk_params pix_clk_params;
@@ -388,6 +395,9 @@ struct resource_context {
 	struct link_enc_assignment link_enc_assignments[MAX_PIPES];
 	/* List of available link encoders. Uses engine ID as encoder identifier. */
 	enum engine_id link_enc_avail[MAX_DIG_LINK_ENCODERS];
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	bool is_hpo_dp_stream_enc_acquired[MAX_HPO_DP2_ENCODERS];
+#endif
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 	bool is_mpc_3dlut_acquired[MAX_PIPES];
 #endif

drivers/gpu/drm/amd/display/dc/inc/hw/hw_shared.h

@@ -38,6 +38,9 @@
 #define MAX_PIPES 6
 #define MAX_DIG_LINK_ENCODERS 7
 #define MAX_DWB_PIPES	1
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+#define MAX_HPO_DP2_ENCODERS	4
+#endif
 
 struct gamma_curve {
 	uint32_t offset;

drivers/gpu/drm/amd/display/dc/inc/hw/stream_encoder.h

@@ -242,4 +242,85 @@ struct stream_encoder_funcs {
 		struct stream_encoder *enc);
 };
 
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+struct hpo_dp_stream_encoder_state {
+	uint32_t stream_enc_enabled;
+	uint32_t vid_stream_enabled;
+	uint32_t otg_inst;
+	uint32_t pixel_encoding;
+	uint32_t component_depth;
+	uint32_t compressed_format;
+	uint32_t sdp_enabled;
+	uint32_t mapped_to_link_enc;
+};
+
+struct hpo_dp_stream_encoder {
+	const struct hpo_dp_stream_encoder_funcs *funcs;
+	struct dc_context *ctx;
+	struct dc_bios *bp;
+	uint32_t inst;
+	enum engine_id id;
+	struct vpg *vpg;
+	struct apg *apg;
+};
+
+struct hpo_dp_stream_encoder_funcs {
+	void (*enable_stream)(
+			struct hpo_dp_stream_encoder *enc);
+
+	void (*dp_unblank)(
+			struct hpo_dp_stream_encoder *enc,
+			uint32_t stream_source);
+
+	void (*dp_blank)(
+			struct hpo_dp_stream_encoder *enc);
+
+	void (*disable)(
+			struct hpo_dp_stream_encoder *enc);
+
+	void (*set_stream_attribute)(
+		struct hpo_dp_stream_encoder *enc,
+		struct dc_crtc_timing *crtc_timing,
+		enum dc_color_space output_color_space,
+		bool use_vsc_sdp_for_colorimetry,
+		bool compressed_format,
+		bool double_buffer_en);
+
+	void (*update_dp_info_packets)(
+		struct hpo_dp_stream_encoder *enc,
+		const struct encoder_info_frame *info_frame);
+
+	void (*stop_dp_info_packets)(
+		struct hpo_dp_stream_encoder *enc);
+
+	void (*dp_set_dsc_pps_info_packet)(
+			struct hpo_dp_stream_encoder *enc,
+			bool enable,
+			uint8_t *dsc_packed_pps);
+
+	void (*map_stream_to_link)(
+			struct hpo_dp_stream_encoder *enc,
+			uint32_t stream_enc_inst,
+			uint32_t link_enc_inst);
+
+	void (*audio_mute_control)(
+			struct hpo_dp_stream_encoder *enc, bool mute);
+
+	void (*dp_audio_setup)(
+			struct hpo_dp_stream_encoder *enc,
+			unsigned int az_inst,
+			struct audio_info *info);
+
+	void (*dp_audio_enable)(
+			struct hpo_dp_stream_encoder *enc);
+
+	void (*dp_audio_disable)(
+			struct hpo_dp_stream_encoder *enc);
+
+	void (*read_state)(
+			struct hpo_dp_stream_encoder *enc,
+			struct hpo_dp_stream_encoder_state *state);
+};
+#endif
+
 #endif /* STREAM_ENCODER_H_ */

drivers/gpu/drm/amd/display/dc/inc/resource.h

@@ -49,6 +49,9 @@ struct resource_caps {
 	int num_vmid;
 	int num_dsc;
 	unsigned int num_dig_link_enc; // Total number of DIGs (digital encoders) in DIO (Display Input/Output).
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	int num_hpo_dp_stream_encoder;
+#endif
 	int num_mpc_3dlut;
 };
 
@@ -68,6 +71,11 @@ struct resource_create_funcs {
 	struct stream_encoder *(*create_stream_encoder)(
 			enum engine_id eng_id, struct dc_context *ctx);
 
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	struct hpo_dp_stream_encoder *(*create_hpo_dp_stream_encoder)(
+			enum engine_id eng_id, struct dc_context *ctx);
+#endif
+
 	struct dce_hwseq *(*create_hwseq)(
 			struct dc_context *ctx);
 };

drivers/gpu/drm/amd/display/include/grph_object_defs.h

@@ -140,6 +140,18 @@ enum sync_source {
 	SYNC_SOURCE_DUAL_GPU_PIN
 };
 
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+enum tx_ffe_id {
+	TX_FFE0 = 0,
+	TX_FFE1,
+	TX_FFE2,
+	TX_FFE3,
+	TX_FFE_DeEmphasis_Only,
+	TX_FFE_PreShoot_Only,
+	TX_FFE_No_FFE,
+};
+#endif
+
 /* connector sizes in millimeters - from BiosParserTypes.hpp */
 #define CONNECTOR_SIZE_DVI			40
 #define CONNECTOR_SIZE_VGA			32

drivers/gpu/drm/amd/display/include/grph_object_id.h

@@ -184,6 +184,14 @@ enum engine_id {
 	ENGINE_ID_DACA,
 	ENGINE_ID_DACB,
 	ENGINE_ID_VCE,	/* wireless display pseudo-encoder */
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	ENGINE_ID_HPO_0,
+	ENGINE_ID_HPO_1,
+	ENGINE_ID_HPO_DP_0,
+	ENGINE_ID_HPO_DP_1,
+	ENGINE_ID_HPO_DP_2,
+	ENGINE_ID_HPO_DP_3,
+#endif
 	ENGINE_ID_VIRTUAL,
 
 	ENGINE_ID_COUNT,