drm/amd/display: DMCU PSR Refactor

- Move PSR programming from link encoder to dmcu
Signed-off-by: Amy Zhang <Amy.Zhang@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/core/dc_link.c

@@ -40,6 +40,7 @@
 #include "abm.h"
 #include "fixed31_32.h"
 #include "dpcd_defs.h"
+#include "dmcu.h"
 
 #include "dce/dce_11_0_d.h"
 #include "dce/dce_11_0_enum.h"
@@ -1433,28 +1434,33 @@ bool dc_link_set_backlight_level(const struct dc_link *dc_link, uint32_t level,
 bool dc_link_set_psr_enable(const struct dc_link *dc_link, bool enable)
 {
 	struct core_link *link = DC_LINK_TO_CORE(dc_link);
+	struct dc_context *ctx = link->ctx;
+	struct core_dc *core_dc = DC_TO_CORE(ctx->dc);
+	struct dmcu *dmcu = core_dc->res_pool->dmcu;
+
+	if (dmcu != NULL && dc_link->psr_caps.psr_version > 0)
+		dmcu->funcs->set_psr_enable(dmcu, enable);
 
-	if (dc_link != NULL && dc_link->psr_caps.psr_version > 0)
-		link->link_enc->funcs->set_dmcu_psr_enable(link->link_enc,
-								enable);
 	return true;
 }
 
 bool dc_link_setup_psr(const struct dc_link *dc_link,
 		const struct dc_stream *stream)
 {
-
 	struct core_link *link = DC_LINK_TO_CORE(dc_link);
 	struct dc_context *ctx = link->ctx;
 	struct core_dc *core_dc = DC_TO_CORE(ctx->dc);
+	struct dmcu *dmcu = core_dc->res_pool->dmcu;
 	struct core_stream *core_stream = DC_STREAM_TO_CORE(stream);
-	struct psr_dmcu_context psr_context = {0};
+	struct psr_context psr_context = {0};
 	int i;
 
 	psr_context.controllerId = CONTROLLER_ID_UNDEFINED;
 
 
-	if (dc_link != NULL && dc_link->psr_caps.psr_version > 0) {
+	if (dc_link != NULL &&
+		dmcu != NULL &&
+		dc_link->psr_caps.psr_version > 0) {
 		/* updateSinkPsrDpcdConfig*/
 		union dpcd_psr_configuration psr_configuration;
 
@@ -1552,8 +1558,7 @@ bool dc_link_setup_psr(const struct dc_link *dc_link,
 		 */
 		psr_context.frame_delay = 0;
 
-		link->link_enc->funcs->setup_dmcu_psr
-			(link->link_enc, &psr_context);
+		dmcu->funcs->setup_psr(dmcu, link, &psr_context);
 		return true;
 	} else
 		return false;

drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c

@@ -23,6 +23,8 @@
  *
  */
 
+#include "core_types.h"
+#include "link_encoder.h"
 #include "dce_dmcu.h"
 #include "dm_services.h"
 #include "reg_helper.h"
@@ -42,6 +44,12 @@
 #define CTX \
 	dmcu_dce->base.ctx
 
+/* PSR related commands */
+#define PSR_ENABLE 0x20
+#define PSR_EXIT 0x21
+#define PSR_SET 0x23
+#define MASTER_COMM_CNTL_REG__MASTER_COMM_INTERRUPT_MASK   0x00000001L
+
 bool dce_dmcu_load_iram(struct dmcu *dmcu,
 		unsigned int start_offset,
 		const char *src,
@@ -76,8 +84,208 @@ bool dce_dmcu_load_iram(struct dmcu *dmcu,
 	return true;
 }
 
+static void dce_get_dmcu_psr_state(struct dmcu *dmcu, uint32_t *psr_state)
+{
+	struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
+
+	uint32_t count = 0;
+	uint32_t psrStateOffset = 0xf0;
+	uint32_t value = -1;
+
+	/* Enable write access to IRAM */
+	REG_UPDATE(DMCU_RAM_ACCESS_CTRL, IRAM_HOST_ACCESS_EN, 1);
+
+	while (REG(DCI_MEM_PWR_STATUS) && value != 0 && count++ < 10) {
+		dm_delay_in_microseconds(dmcu->ctx, 2);
+		REG_GET(DCI_MEM_PWR_STATUS, DMCU_IRAM_MEM_PWR_STATE, &value);
+	}
+	while (REG(DMU_MEM_PWR_CNTL) && value != 0 && count++ < 10) {
+		dm_delay_in_microseconds(dmcu->ctx, 2);
+		REG_GET(DMU_MEM_PWR_CNTL, DMCU_IRAM_MEM_PWR_STATE, &value);
+	}
+
+	/* Write address to IRAM_RD_ADDR in DMCU_IRAM_RD_CTRL */
+	REG_WRITE(DMCU_IRAM_RD_CTRL, psrStateOffset);
+
+	/* Read data from IRAM_RD_DATA in DMCU_IRAM_RD_DATA*/
+	*psr_state = REG_READ(DMCU_IRAM_RD_DATA);
+
+	/* Disable write access to IRAM after finished using IRAM
+	 * in order to allow dynamic sleep state
+	 */
+	REG_UPDATE(DMCU_RAM_ACCESS_CTRL, IRAM_HOST_ACCESS_EN, 0);
+}
+
+static void dce_dmcu_set_psr_enable(struct dmcu *dmcu, bool enable)
+{
+	struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
+	unsigned int dmcu_max_retry_on_wait_reg_ready = 801;
+	unsigned int dmcu_wait_reg_ready_interval = 100;
+
+	unsigned int regValue;
+
+	unsigned int retryCount;
+	uint32_t psr_state = 0;
+
+	/* waitDMCUReadyForCmd */
+	do {
+		dm_delay_in_microseconds(dmcu->ctx,
+				dmcu_wait_reg_ready_interval);
+		regValue = REG_READ(MASTER_COMM_CNTL_REG);
+		dmcu_max_retry_on_wait_reg_ready--;
+	} while
+	/* expected value is 0, loop while not 0*/
+	((MASTER_COMM_CNTL_REG__MASTER_COMM_INTERRUPT_MASK & regValue) &&
+		dmcu_max_retry_on_wait_reg_ready > 0);
+
+	/* setDMCUParam_Cmd */
+	if (enable)
+		REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0,
+				PSR_ENABLE);
+	else
+		REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0,
+				PSR_EXIT);
+
+	/* notifyDMCUMsg */
+	REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
+
+	for (retryCount = 0; retryCount <= 100; retryCount++) {
+		dce_get_dmcu_psr_state(dmcu, &psr_state);
+		if (enable) {
+			if (psr_state != 0)
+				break;
+		} else {
+			if (psr_state == 0)
+				break;
+		}
+		dm_delay_in_microseconds(dmcu->ctx, 10);
+	}
+}
+
+static void dce_dmcu_setup_psr(struct dmcu *dmcu,
+		struct core_link *link,
+		struct psr_context *psr_context)
+{
+	struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
+
+	unsigned int dmcu_max_retry_on_wait_reg_ready = 801;
+	unsigned int dmcu_wait_reg_ready_interval = 100;
+	unsigned int regValue;
+
+	union dce_dmcu_psr_config_data_reg1 masterCmdData1;
+	union dce_dmcu_psr_config_data_reg2 masterCmdData2;
+	union dce_dmcu_psr_config_data_reg3 masterCmdData3;
+
+	link->link_enc->funcs->psr_program_dp_dphy_fast_training(link->link_enc,
+			psr_context->psrExitLinkTrainingRequired);
+
+	/* Enable static screen interrupts for PSR supported display */
+	/* Disable the interrupt coming from other displays. */
+	REG_UPDATE_4(DMCU_INTERRUPT_TO_UC_EN_MASK,
+			STATIC_SCREEN1_INT_TO_UC_EN, 0,
+			STATIC_SCREEN2_INT_TO_UC_EN, 0,
+			STATIC_SCREEN3_INT_TO_UC_EN, 0,
+			STATIC_SCREEN4_INT_TO_UC_EN, 0);
+
+	switch (psr_context->controllerId) {
+	/* Driver uses case 1 for unconfigured */
+	case 1:
+		REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
+				STATIC_SCREEN1_INT_TO_UC_EN, 1);
+		break;
+	case 2:
+		REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
+				STATIC_SCREEN2_INT_TO_UC_EN, 1);
+		break;
+	case 3:
+		REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
+				STATIC_SCREEN3_INT_TO_UC_EN, 1);
+		break;
+	case 4:
+		REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
+				STATIC_SCREEN4_INT_TO_UC_EN, 1);
+		break;
+	case 5:
+		/* CZ/NL only has 4 CRTC!!
+		 * really valid.
+		 * There is no interrupt enable mask for these instances.
+		 */
+		break;
+	case 6:
+		/* CZ/NL only has 4 CRTC!!
+		 * These are here because they are defined in HW regspec,
+		 * but not really valid. There is no interrupt enable mask
+		 * for these instances.
+		 */
+		break;
+	default:
+		REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
+				STATIC_SCREEN1_INT_TO_UC_EN, 1);
+		break;
+	}
+
+	link->link_enc->funcs->psr_program_secondary_packet(link->link_enc,
+			psr_context->sdpTransmitLineNumDeadline);
+
+	if (psr_context->psr_level.bits.SKIP_SMU_NOTIFICATION)
+		REG_UPDATE(SMU_INTERRUPT_CONTROL, DC_SMU_INT_ENABLE, 1);
+
+	/* waitDMCUReadyForCmd */
+	do {
+		dm_delay_in_microseconds(dmcu->ctx,
+				dmcu_wait_reg_ready_interval);
+		regValue = REG_READ(MASTER_COMM_CNTL_REG);
+		dmcu_max_retry_on_wait_reg_ready--;
+	} while
+	/* expected value is 0, loop while not 0*/
+	((MASTER_COMM_CNTL_REG__MASTER_COMM_INTERRUPT_MASK & regValue) &&
+		dmcu_max_retry_on_wait_reg_ready > 0);
+
+	/* setDMCUParam_PSRHostConfigData */
+	masterCmdData1.u32All = 0;
+	masterCmdData1.bits.timehyst_frames = psr_context->timehyst_frames;
+	masterCmdData1.bits.hyst_lines = psr_context->hyst_lines;
+	masterCmdData1.bits.rfb_update_auto_en =
+			psr_context->rfb_update_auto_en;
+	masterCmdData1.bits.dp_port_num = psr_context->transmitterId;
+	masterCmdData1.bits.dcp_sel = psr_context->controllerId;
+	masterCmdData1.bits.phy_type  = psr_context->phyType;
+	masterCmdData1.bits.frame_cap_ind =
+			psr_context->psrFrameCaptureIndicationReq;
+	masterCmdData1.bits.aux_chan = psr_context->channel;
+	masterCmdData1.bits.aux_repeat = psr_context->aux_repeats;
+	dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG1),
+					masterCmdData1.u32All);
+
+	masterCmdData2.u32All = 0;
+	masterCmdData2.bits.dig_fe = psr_context->engineId;
+	masterCmdData2.bits.dig_be = psr_context->transmitterId;
+	masterCmdData2.bits.skip_wait_for_pll_lock =
+			psr_context->skipPsrWaitForPllLock;
+	masterCmdData2.bits.frame_delay = psr_context->frame_delay;
+	masterCmdData2.bits.smu_phy_id = psr_context->smuPhyId;
+	masterCmdData2.bits.num_of_controllers =
+			psr_context->numberOfControllers;
+	dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG2),
+			masterCmdData2.u32All);
+
+	masterCmdData3.u32All = 0;
+	masterCmdData3.bits.psr_level = psr_context->psr_level.u32all;
+	dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG3),
+			masterCmdData3.u32All);
+
+	/* setDMCUParam_Cmd */
+	REG_UPDATE(MASTER_COMM_CMD_REG,
+			MASTER_COMM_CMD_REG_BYTE0, PSR_SET);
+
+	/* notifyDMCUMsg */
+	REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
+}
+
 static const struct dmcu_funcs dce_funcs = {
 	.load_iram = dce_dmcu_load_iram,
+	.set_psr_enable = dce_dmcu_set_psr_enable,
+	.setup_psr = dce_dmcu_setup_psr,
 };
 
 static void dce_dmcu_construct(

drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.h

@@ -33,7 +33,16 @@
 	SR(DMCU_CTRL), \
 	SR(DMCU_RAM_ACCESS_CTRL), \
 	SR(DMCU_IRAM_WR_CTRL), \
-	SR(DMCU_IRAM_WR_DATA)
+	SR(DMCU_IRAM_WR_DATA), \
+	SR(MASTER_COMM_DATA_REG1), \
+	SR(MASTER_COMM_DATA_REG2), \
+	SR(MASTER_COMM_DATA_REG3), \
+	SR(MASTER_COMM_CMD_REG), \
+	SR(MASTER_COMM_CNTL_REG), \
+	SR(DMCU_IRAM_RD_CTRL), \
+	SR(DMCU_IRAM_RD_DATA), \
+	SR(DMCU_INTERRUPT_TO_UC_EN_MASK), \
+	SR(SMU_INTERRUPT_CONTROL)
 
 #define DMCU_DCE110_COMMON_REG_LIST() \
 	DMCU_COMMON_REG_LIST_DCE_BASE(), \
@@ -48,7 +57,19 @@
 	DMCU_SF(DMCU_RAM_ACCESS_CTRL, \
 			IRAM_HOST_ACCESS_EN, mask_sh), \
 	DMCU_SF(DMCU_RAM_ACCESS_CTRL, \
-			IRAM_WR_ADDR_AUTO_INC, mask_sh)
+			IRAM_WR_ADDR_AUTO_INC, mask_sh), \
+	DMCU_SF(MASTER_COMM_CMD_REG, \
+			MASTER_COMM_CMD_REG_BYTE0, mask_sh), \
+	DMCU_SF(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, mask_sh), \
+	DMCU_SF(DMCU_INTERRUPT_TO_UC_EN_MASK, \
+			STATIC_SCREEN1_INT_TO_UC_EN, mask_sh), \
+	DMCU_SF(DMCU_INTERRUPT_TO_UC_EN_MASK, \
+			STATIC_SCREEN2_INT_TO_UC_EN, mask_sh), \
+	DMCU_SF(DMCU_INTERRUPT_TO_UC_EN_MASK, \
+			STATIC_SCREEN3_INT_TO_UC_EN, mask_sh), \
+	DMCU_SF(DMCU_INTERRUPT_TO_UC_EN_MASK, \
+			STATIC_SCREEN4_INT_TO_UC_EN, mask_sh), \
+	DMCU_SF(SMU_INTERRUPT_CONTROL, DC_SMU_INT_ENABLE, mask_sh)
 
 #define DMCU_MASK_SH_LIST_DCE110(mask_sh) \
 	DMCU_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(mask_sh), \
@@ -59,7 +80,18 @@
 	type DMCU_IRAM_MEM_PWR_STATE; \
 	type IRAM_HOST_ACCESS_EN; \
 	type IRAM_WR_ADDR_AUTO_INC; \
-	type DMCU_ENABLE
+	type DMCU_ENABLE; \
+	type MASTER_COMM_CMD_REG_BYTE0; \
+	type MASTER_COMM_INTERRUPT; \
+	type DPHY_RX_FAST_TRAINING_CAPABLE; \
+	type DPHY_LOAD_BS_COUNT; \
+	type STATIC_SCREEN1_INT_TO_UC_EN; \
+	type STATIC_SCREEN2_INT_TO_UC_EN; \
+	type STATIC_SCREEN3_INT_TO_UC_EN; \
+	type STATIC_SCREEN4_INT_TO_UC_EN; \
+	type DP_SEC_GSP0_LINE_NUM; \
+	type DP_SEC_GSP0_PRIORITY; \
+	type DC_SMU_INT_ENABLE
 
 struct dce_dmcu_shift {
 	DMCU_REG_FIELD_LIST(uint8_t);
@@ -76,6 +108,16 @@ struct dce_dmcu_registers {
 	uint32_t DMU_MEM_PWR_CNTL;
 	uint32_t DMCU_IRAM_WR_CTRL;
 	uint32_t DMCU_IRAM_WR_DATA;
+
+	uint32_t MASTER_COMM_DATA_REG1;
+	uint32_t MASTER_COMM_DATA_REG2;
+	uint32_t MASTER_COMM_DATA_REG3;
+	uint32_t MASTER_COMM_CMD_REG;
+	uint32_t MASTER_COMM_CNTL_REG;
+	uint32_t DMCU_IRAM_RD_CTRL;
+	uint32_t DMCU_IRAM_RD_DATA;
+	uint32_t DMCU_INTERRUPT_TO_UC_EN_MASK;
+	uint32_t SMU_INTERRUPT_CONTROL;
 };
 
 struct dce_dmcu {
@@ -85,6 +127,63 @@ struct dce_dmcu {
 	const struct dce_dmcu_mask *dmcu_mask;
 };
 
+/*******************************************************************
+ *   MASTER_COMM_DATA_REG1   Bit position    Data
+ *                           7:0	            hyst_frames[7:0]
+ *                           14:8	        hyst_lines[6:0]
+ *                           15	            RFB_UPDATE_AUTO_EN
+ *                           18:16	        phy_num[2:0]
+ *                           21:19	        dcp_sel[2:0]
+ *                           22	            phy_type
+ *                           23	            frame_cap_ind
+ *                           26:24	        aux_chan[2:0]
+ *                           30:27	        aux_repeat[3:0]
+ *                           31:31	        reserved[31:31]
+ ******************************************************************/
+union dce_dmcu_psr_config_data_reg1 {
+	struct {
+		unsigned int timehyst_frames:8;    /*[7:0]*/
+		unsigned int hyst_lines:7;         /*[14:8]*/
+		unsigned int rfb_update_auto_en:1; /*[15:15]*/
+		unsigned int dp_port_num:3;        /*[18:16]*/
+		unsigned int dcp_sel:3;            /*[21:19]*/
+		unsigned int phy_type:1;           /*[22:22]*/
+		unsigned int frame_cap_ind:1;      /*[23:23]*/
+		unsigned int aux_chan:3;           /*[26:24]*/
+		unsigned int aux_repeat:4;         /*[30:27]*/
+		unsigned int reserved:1;           /*[31:31]*/
+	} bits;
+	unsigned int u32All;
+};
+
+/*******************************************************************
+ *   MASTER_COMM_DATA_REG2
+ *******************************************************************/
+union dce_dmcu_psr_config_data_reg2 {
+	struct {
+		unsigned int dig_fe:3;                  /*[2:0]*/
+		unsigned int dig_be:3;                  /*[5:3]*/
+		unsigned int skip_wait_for_pll_lock:1;  /*[6:6]*/
+		unsigned int reserved:9;                /*[15:7]*/
+		unsigned int frame_delay:8;             /*[23:16]*/
+		unsigned int smu_phy_id:4;              /*[27:24]*/
+		unsigned int num_of_controllers:4;      /*[31:28]*/
+	} bits;
+	unsigned int u32All;
+};
+
+/*******************************************************************
+ *   MASTER_COMM_DATA_REG3
+ *******************************************************************/
+union dce_dmcu_psr_config_data_reg3 {
+	struct {
+		unsigned int psr_level:16;      /*[15:0]*/
+		unsigned int link_rate:4;       /*[19:16]*/
+		unsigned int reserved:12;       /*[31:20]*/
+	} bits;
+	unsigned int u32All;
+};
+
 struct dmcu *dce_dmcu_create(
 	struct dc_context *ctx,
 	const struct dce_dmcu_registers *regs,

drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c

@@ -95,14 +95,6 @@
 /* For current ASICs pixel clock - 600MHz */
 #define MAX_ENCODER_CLOCK 600000
 
-/* PSR related commands */
-#define PSR_ENABLE 0x20
-#define PSR_EXIT 0x21
-#define PSR_SET 0x23
-
-/*TODO: Used for psr wakeup for set backlight level*/
-static unsigned int psr_crtc_offset;
-
 enum {
 	DP_MST_UPDATE_MAX_RETRY = 50
 };
@@ -126,8 +118,9 @@ static const struct link_encoder_funcs dce110_lnk_enc_funcs = {
 	.dp_set_phy_pattern = dce110_link_encoder_dp_set_phy_pattern,
 	.update_mst_stream_allocation_table =
 		dce110_link_encoder_update_mst_stream_allocation_table,
-	.set_dmcu_psr_enable = dce110_link_encoder_set_dmcu_psr_enable,
-	.setup_dmcu_psr = dce110_link_encoder_setup_dmcu_psr,
+	.psr_program_dp_dphy_fast_training =
+			dce110_psr_program_dp_dphy_fast_training,
+	.psr_program_secondary_packet = dce110_psr_program_secondary_packet,
 	.backlight_control = dce110_link_encoder_edp_backlight_control,
 	.power_control = dce110_link_encoder_edp_power_control,
 	.connect_dig_be_to_fe = dce110_link_encoder_connect_dig_be_to_fe,
@@ -136,7 +129,6 @@ static const struct link_encoder_funcs dce110_lnk_enc_funcs = {
 	.destroy = dce110_link_encoder_destroy
 };
 
-
 static enum bp_result link_transmitter_control(
 	struct dce110_link_encoder *enc110,
 	struct bp_transmitter_control *cntl)
@@ -721,6 +713,40 @@ static bool is_panel_backlight_on(struct dce110_link_encoder *enc110)
 	return value;
 }
 
+void dce110_psr_program_dp_dphy_fast_training(struct link_encoder *enc,
+			bool exit_link_training_required)
+{
+	struct dce110_link_encoder *enc110 = TO_DCE110_LINK_ENC(enc);
+
+	if (exit_link_training_required)
+		REG_UPDATE(DP_DPHY_FAST_TRAINING,
+				DPHY_RX_FAST_TRAINING_CAPABLE, 1);
+	else {
+		REG_UPDATE(DP_DPHY_FAST_TRAINING,
+				DPHY_RX_FAST_TRAINING_CAPABLE, 0);
+		/*In DCE 11, we are able to pre-program a Force SR register
+		 * to be able to trigger SR symbol after 5 idle patterns
+		 * transmitted. Upon PSR Exit, DMCU can trigger
+		 * DPHY_LOAD_BS_COUNT_START = 1. Upon writing 1 to
+		 * DPHY_LOAD_BS_COUNT_START and the internal counter
+		 * reaches DPHY_LOAD_BS_COUNT, the next BS symbol will be
+		 * replaced by SR symbol once.
+		 */
+
+		REG_UPDATE(DP_DPHY_BS_SR_SWAP_CNTL, DPHY_LOAD_BS_COUNT, 0x5);
+	}
+}
+
+void dce110_psr_program_secondary_packet(struct link_encoder *enc,
+			unsigned int sdp_transmit_line_num_deadline)
+{
+	struct dce110_link_encoder *enc110 = TO_DCE110_LINK_ENC(enc);
+
+	REG_UPDATE_2(DP_SEC_CNTL1,
+		DP_SEC_GSP0_LINE_NUM, sdp_transmit_line_num_deadline,
+		DP_SEC_GSP0_PRIORITY, 1);
+}
+
 /*todo: cloned in stream enc, fix*/
 /*
  * @brief
@@ -1560,238 +1586,6 @@ void dce110_link_encoder_update_mst_stream_allocation_table(
 	} while (retries < DP_MST_UPDATE_MAX_RETRY);
 }
 
-static void get_dmcu_psr_state(struct link_encoder *enc, uint32_t *psr_state)
-{
-	struct dce110_link_encoder *enc110 = TO_DCE110_LINK_ENC(enc);
-	struct dc_context *ctx = enc110->base.ctx;
-
-	uint32_t count = 0;
-	uint32_t psrStateOffset = 0xf0;
-	uint32_t value = -1;
-
-	/* Enable write access to IRAM */
-	REG_UPDATE(DMCU_RAM_ACCESS_CTRL, IRAM_HOST_ACCESS_EN, 1);
-
-	while (REG(DCI_MEM_PWR_STATUS) && value != 0 && count++ < 10) {
-		dm_delay_in_microseconds(ctx, 2);
-		REG_GET(DCI_MEM_PWR_STATUS, DMCU_IRAM_MEM_PWR_STATE, &value);
-	}
-	while (REG(DMU_MEM_PWR_CNTL) && value != 0 && count++ < 10) {
-		dm_delay_in_microseconds(ctx, 2);
-		REG_GET(DMU_MEM_PWR_CNTL, DMCU_IRAM_MEM_PWR_STATE, &value);
-	}
-
-	/* Write address to IRAM_RD_ADDR in DMCU_IRAM_RD_CTRL */
-	REG_WRITE(DMCU_IRAM_RD_CTRL, psrStateOffset);
-
-	/* Read data from IRAM_RD_DATA in DMCU_IRAM_RD_DATA*/
-	*psr_state = REG_READ(DMCU_IRAM_RD_DATA);
-
-	/* Disable write access to IRAM after finished using IRAM
-	 * in order to allow dynamic sleep state
-	 */
-	REG_UPDATE(DMCU_RAM_ACCESS_CTRL, IRAM_HOST_ACCESS_EN, 0);
-}
-
-void dce110_link_encoder_set_dmcu_psr_enable(struct link_encoder *enc,
-								bool enable)
-{
-	struct dce110_link_encoder *enc110 = TO_DCE110_LINK_ENC(enc);
-	struct dc_context *ctx = enc110->base.ctx;
-
-	unsigned int dmcu_max_retry_on_wait_reg_ready = 801;
-	unsigned int dmcu_wait_reg_ready_interval = 100;
-
-	unsigned int regValue;
-
-	unsigned int retryCount;
-	uint32_t psr_state = 0;
-
-	/* waitDMCUReadyForCmd */
-	do {
-		dm_delay_in_microseconds(ctx, dmcu_wait_reg_ready_interval);
-		regValue = REG_READ(MASTER_COMM_CNTL_REG);
-		dmcu_max_retry_on_wait_reg_ready--;
-	} while
-	/* expected value is 0, loop while not 0*/
-	((MASTER_COMM_CNTL_REG__MASTER_COMM_INTERRUPT_MASK & regValue) &&
-		dmcu_max_retry_on_wait_reg_ready > 0);
-
-	/* setDMCUParam_Cmd */
-	if (enable)
-		REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, PSR_ENABLE);
-	else
-		REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, PSR_EXIT);
-
-	/* notifyDMCUMsg */
-	REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
-
-	for (retryCount = 0; retryCount <= 100; retryCount++) {
-		get_dmcu_psr_state(enc, &psr_state);
-		if (enable) {
-			if (psr_state != 0)
-				break;
-		} else {
-			if (psr_state == 0)
-				break;
-		}
-		dm_delay_in_microseconds(ctx, 10);
-	}
-}
-
-void dce110_link_encoder_setup_dmcu_psr(struct link_encoder *enc,
-			struct psr_dmcu_context *psr_context)
-{
-	struct dce110_link_encoder *enc110 = TO_DCE110_LINK_ENC(enc);
-	struct dc_context *ctx = enc110->base.ctx;
-
-	unsigned int dmcu_max_retry_on_wait_reg_ready = 801;
-	unsigned int dmcu_wait_reg_ready_interval = 100;
-	unsigned int regValue;
-
-	union dce110_dmcu_psr_config_data_reg1 masterCmdData1;
-	union dce110_dmcu_psr_config_data_reg2 masterCmdData2;
-	union dce110_dmcu_psr_config_data_reg3 masterCmdData3;
-
-	if (psr_context->psrExitLinkTrainingRequired)
-		REG_UPDATE(DP_DPHY_FAST_TRAINING, DPHY_RX_FAST_TRAINING_CAPABLE, 1);
-	else {
-		REG_UPDATE(DP_DPHY_FAST_TRAINING, DPHY_RX_FAST_TRAINING_CAPABLE, 0);
-		/*In DCE 11, we are able to pre-program a Force SR register
-		 * to be able to trigger SR symbol after 5 idle patterns
-		 * transmitted. Upon PSR Exit, DMCU can trigger
-		 * DPHY_LOAD_BS_COUNT_START = 1. Upon writing 1 to
-		 * DPHY_LOAD_BS_COUNT_START and the internal counter
-		 * reaches DPHY_LOAD_BS_COUNT, the next BS symbol will be
-		 * replaced by SR symbol once.
-		 */
-
-		REG_UPDATE(DP_DPHY_BS_SR_SWAP_CNTL, DPHY_LOAD_BS_COUNT, 0x5);
-	}
-
-	/* Enable static screen interrupts for PSR supported display */
-	/* Disable the interrupt coming from other displays. */
-	REG_UPDATE_4(DMCU_INTERRUPT_TO_UC_EN_MASK,
-			STATIC_SCREEN1_INT_TO_UC_EN, 0,
-			STATIC_SCREEN2_INT_TO_UC_EN, 0,
-			STATIC_SCREEN3_INT_TO_UC_EN, 0,
-			STATIC_SCREEN4_INT_TO_UC_EN, 0);
-
-	switch (psr_context->controllerId) {
-	/* Driver uses case 1 for unconfigured */
-	case 1:
-		psr_crtc_offset = mmCRTC0_CRTC_STATIC_SCREEN_CONTROL -
-				mmCRTC0_CRTC_STATIC_SCREEN_CONTROL;
-
-		REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
-				STATIC_SCREEN1_INT_TO_UC_EN, 1);
-		break;
-	case 2:
-		psr_crtc_offset = mmCRTC1_CRTC_STATIC_SCREEN_CONTROL -
-				mmCRTC0_CRTC_STATIC_SCREEN_CONTROL;
-
-		REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
-				STATIC_SCREEN2_INT_TO_UC_EN, 1);
-		break;
-	case 3:
-		psr_crtc_offset = mmCRTC2_CRTC_STATIC_SCREEN_CONTROL -
-				mmCRTC0_CRTC_STATIC_SCREEN_CONTROL;
-
-		REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
-				STATIC_SCREEN3_INT_TO_UC_EN, 1);
-		break;
-	case 4:
-		psr_crtc_offset = mmCRTC3_CRTC_STATIC_SCREEN_CONTROL -
-				mmCRTC0_CRTC_STATIC_SCREEN_CONTROL;
-
-		REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
-				STATIC_SCREEN4_INT_TO_UC_EN, 1);
-		break;
-	case 5:
-		psr_crtc_offset = mmCRTC4_CRTC_STATIC_SCREEN_CONTROL -
-				mmCRTC0_CRTC_STATIC_SCREEN_CONTROL;
-		/* CZ/NL only has 4 CRTC!!
-		 * really valid.
-		 * There is no interrupt enable mask for these instances.
-		 */
-		break;
-	case 6:
-		psr_crtc_offset = mmCRTC5_CRTC_STATIC_SCREEN_CONTROL -
-				mmCRTC0_CRTC_STATIC_SCREEN_CONTROL;
-		/* CZ/NL only has 4 CRTC!!
-		 * These are here because they are defined in HW regspec,
-		 * but not really valid. There is no interrupt enable mask
-		 * for these instances.
-		 */
-		break;
-	default:
-		psr_crtc_offset = mmCRTC0_CRTC_STATIC_SCREEN_CONTROL -
-				mmCRTC0_CRTC_STATIC_SCREEN_CONTROL;
-
-		REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
-				STATIC_SCREEN1_INT_TO_UC_EN, 1);
-		break;
-	}
-
-	REG_UPDATE_2(DP_SEC_CNTL1,
-		DP_SEC_GSP0_LINE_NUM, psr_context->sdpTransmitLineNumDeadline,
-		DP_SEC_GSP0_PRIORITY, 1);
-
-	if (psr_context->psr_level.bits.SKIP_SMU_NOTIFICATION) {
-		REG_UPDATE(SMU_INTERRUPT_CONTROL, DC_SMU_INT_ENABLE, 1);
-	}
-
-	/* waitDMCUReadyForCmd */
-	do {
-		dm_delay_in_microseconds(ctx, dmcu_wait_reg_ready_interval);
-		regValue = REG_READ(MASTER_COMM_CNTL_REG);
-		dmcu_max_retry_on_wait_reg_ready--;
-	} while
-	/* expected value is 0, loop while not 0*/
-	((MASTER_COMM_CNTL_REG__MASTER_COMM_INTERRUPT_MASK & regValue) &&
-		dmcu_max_retry_on_wait_reg_ready > 0);
-
-	/* setDMCUParam_PSRHostConfigData */
-	masterCmdData1.u32All = 0;
-	masterCmdData1.bits.timehyst_frames = psr_context->timehyst_frames;
-	masterCmdData1.bits.hyst_lines = psr_context->hyst_lines;
-	masterCmdData1.bits.rfb_update_auto_en =
-			psr_context->rfb_update_auto_en;
-	masterCmdData1.bits.dp_port_num = psr_context->transmitterId;
-	masterCmdData1.bits.dcp_sel = psr_context->controllerId;
-	masterCmdData1.bits.phy_type  = psr_context->phyType;
-	masterCmdData1.bits.frame_cap_ind =
-			psr_context->psrFrameCaptureIndicationReq;
-	masterCmdData1.bits.aux_chan = psr_context->channel;
-	masterCmdData1.bits.aux_repeat = psr_context->aux_repeats;
-	dm_write_reg(ctx, REG(MASTER_COMM_DATA_REG1),
-					masterCmdData1.u32All);
-
-	masterCmdData2.u32All = 0;
-	masterCmdData2.bits.dig_fe = psr_context->engineId;
-	masterCmdData2.bits.dig_be = psr_context->transmitterId;
-	masterCmdData2.bits.skip_wait_for_pll_lock =
-			psr_context->skipPsrWaitForPllLock;
-	masterCmdData2.bits.frame_delay = psr_context->frame_delay;
-	masterCmdData2.bits.smu_phy_id = psr_context->smuPhyId;
-	masterCmdData2.bits.num_of_controllers =
-			psr_context->numberOfControllers;
-	dm_write_reg(ctx, REG(MASTER_COMM_DATA_REG2),
-			masterCmdData2.u32All);
-
-	masterCmdData3.u32All = 0;
-	masterCmdData3.bits.psr_level = psr_context->psr_level.u32all;
-	dm_write_reg(ctx, REG(MASTER_COMM_DATA_REG3),
-			masterCmdData3.u32All);
-
-	/* setDMCUParam_Cmd */
-	REG_UPDATE(MASTER_COMM_CMD_REG,
-			MASTER_COMM_CMD_REG_BYTE0, PSR_SET);
-
-	/* notifyDMCUMsg */
-	REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
-}
-
 void dce110_link_encoder_connect_dig_be_to_fe(
 	struct link_encoder *enc,
 	enum engine_id engine,

drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.h

@@ -39,11 +39,6 @@
 	SRI(DC_HPD_CONTROL, HPD, id)
 
 #define LE_COMMON_REG_LIST_BASE(id) \
-	SR(MASTER_COMM_DATA_REG1), \
-	SR(MASTER_COMM_DATA_REG2), \
-	SR(MASTER_COMM_DATA_REG3), \
-	SR(MASTER_COMM_CMD_REG), \
-	SR(MASTER_COMM_CNTL_REG), \
 	SR(LVTMA_PWRSEQ_CNTL), \
 	SR(LVTMA_PWRSEQ_STATE), \
 	SR(DMCU_RAM_ACCESS_CTRL), \
@@ -149,62 +144,6 @@ struct dce110_link_encoder {
 	const struct dce110_link_enc_hpd_registers *hpd_regs;
 };
 
-/*******************************************************************
-*   MASTER_COMM_DATA_REG1   Bit position    Data
-*                           7:0	            hyst_frames[7:0]
-*                           14:8	        hyst_lines[6:0]
-*                           15	            RFB_UPDATE_AUTO_EN
-*                           18:16	        phy_num[2:0]
-*                           21:19	        dcp_sel[2:0]
-*                           22	            phy_type
-*                           23	            frame_cap_ind
-*                           26:24	        aux_chan[2:0]
-*                           30:27	        aux_repeat[3:0]
-*                           31:31	        reserved[31:31]
-*******************************************************************/
-union dce110_dmcu_psr_config_data_reg1 {
-	struct {
-		unsigned int timehyst_frames:8;    /*[7:0]*/
-		unsigned int hyst_lines:7;         /*[14:8]*/
-		unsigned int rfb_update_auto_en:1; /*[15:15]*/
-		unsigned int dp_port_num:3;        /*[18:16]*/
-		unsigned int dcp_sel:3;            /*[21:19]*/
-		unsigned int phy_type:1;           /*[22:22]*/
-		unsigned int frame_cap_ind:1;      /*[23:23]*/
-		unsigned int aux_chan:3;           /*[26:24]*/
-		unsigned int aux_repeat:4;         /*[30:27]*/
-		unsigned int reserved:1;           /*[31:31]*/
-	} bits;
-	unsigned int u32All;
-};
-
-/*******************************************************************
-*   MASTER_COMM_DATA_REG2
-*******************************************************************/
-union dce110_dmcu_psr_config_data_reg2 {
-	struct {
-		unsigned int dig_fe:3;                  /*[2:0]*/
-		unsigned int dig_be:3;                  /*[5:3]*/
-		unsigned int skip_wait_for_pll_lock:1;  /*[6:6]*/
-		unsigned int reserved:9;                /*[15:7]*/
-		unsigned int frame_delay:8;             /*[23:16]*/
-		unsigned int smu_phy_id:4;              /*[27:24]*/
-		unsigned int num_of_controllers:4;      /*[31:28]*/
-	} bits;
-	unsigned int u32All;
-};
-
-/*******************************************************************
-*   MASTER_COMM_DATA_REG3
-*******************************************************************/
-union dce110_dmcu_psr_config_data_reg3 {
-	struct {
-		unsigned int psr_level:16;      /*[15:0]*/
-		unsigned int link_rate:4;       /*[19:16]*/
-		unsigned int reserved:12;       /*[31:20]*/
-	} bits;
-	unsigned int u32All;
-};
 
 bool dce110_link_encoder_construct(
 	struct dce110_link_encoder *enc110,
@@ -290,12 +229,6 @@ void dce110_link_encoder_update_mst_stream_allocation_table(
 	struct link_encoder *enc,
 	const struct link_mst_stream_allocation_table *table);
 
-void dce110_link_encoder_set_dmcu_psr_enable(
-		struct link_encoder *enc, bool enable);
-
-void dce110_link_encoder_setup_dmcu_psr(struct link_encoder *enc,
-			struct psr_dmcu_context *psr_context);
-
 void dce110_link_encoder_edp_backlight_control(
 	struct link_encoder *enc,
 	bool enable);
@@ -317,4 +250,10 @@ void dce110_link_encoder_enable_hpd(struct link_encoder *enc);
 
 void dce110_link_encoder_disable_hpd(struct link_encoder *enc);
 
+void dce110_psr_program_dp_dphy_fast_training(struct link_encoder *enc,
+			bool exit_link_training_required);
+
+void dce110_psr_program_secondary_packet(struct link_encoder *enc,
+			unsigned int sdp_transmit_line_num_deadline);
+
 #endif /* __DC_LINK_ENCODER__DCE110_H__ */

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

@@ -37,6 +37,10 @@ struct dmcu_funcs {
 			unsigned int start_offset,
 			const char *src,
 			unsigned int bytes);
+	void (*set_psr_enable)(struct dmcu *dmcu, bool enable);
+	void (*setup_psr)(struct dmcu *dmcu,
+			struct core_link *link,
+			struct psr_context *psr_context);
 };
 
 #endif

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

@@ -116,7 +116,7 @@ union psr_sink_psr_status {
 	unsigned char raw;
 };
 
-struct psr_dmcu_context {
+struct psr_context {
 	/* ddc line */
 	enum channel_id channel;
 	/* Transmitter id */
@@ -220,9 +220,10 @@ struct link_encoder_funcs {
 	void (*update_mst_stream_allocation_table)(
 		struct link_encoder *enc,
 		const struct link_mst_stream_allocation_table *table);
-	void (*set_dmcu_psr_enable)(struct link_encoder *enc, bool enable);
-	void (*setup_dmcu_psr)(struct link_encoder *enc,
-			struct psr_dmcu_context *psr_context);
+	void (*psr_program_dp_dphy_fast_training)(struct link_encoder *enc,
+			bool exit_link_training_required);
+	void (*psr_program_secondary_packet)(struct link_encoder *enc,
+				unsigned int sdp_transmit_line_num_deadline);
 	void (*backlight_control) (struct link_encoder *enc,
 		bool enable);
 	void (*power_control) (struct link_encoder *enc,