/*
 * Copyright 2016 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 <linux/delay.h>

#include "dm_services.h"
#include "basics/dc_common.h"
#include "dm_helpers.h"
#include "core_types.h"
#include "resource.h"
#include "dcn20_resource.h"
#include "dcn20_hwseq.h"
#include "dce/dce_hwseq.h"
#include "dcn20_dsc.h"
#include "dcn20_optc.h"
#include "abm.h"
#include "clk_mgr.h"
#include "dmcu.h"
#include "hubp.h"
#include "timing_generator.h"
#include "opp.h"
#include "ipp.h"
#include "mpc.h"
#include "mcif_wb.h"
#include "dchubbub.h"
#include "reg_helper.h"
#include "dcn10/dcn10_cm_common.h"
#include "dc_link_dp.h"
#include "vm_helper.h"
#include "dccg.h"
#include "dc_dmub_srv.h"
#include "dce/dmub_hw_lock_mgr.h"
#include "hw_sequencer.h"

#define DC_LOGGER_INIT(logger)

#define CTX \
        hws->ctx
#define REG(reg)\
        hws->regs->reg

#undef FN
#define FN(reg_name, field_name) \
        hws->shifts->field_name, hws->masks->field_name

static int find_free_gsl_group(const struct dc *dc)
{
        if (dc->res_pool->gsl_groups.gsl_0 == 0)
                return 1;
        if (dc->res_pool->gsl_groups.gsl_1 == 0)
                return 2;
        if (dc->res_pool->gsl_groups.gsl_2 == 0)
                return 3;

        return 0;
}

/* NOTE: This is not a generic setup_gsl function (hence the suffix as_lock)
 * This is only used to lock pipes in pipe splitting case with immediate flip
 * Ordinary MPC/OTG locks suppress VUPDATE which doesn't help with immediate,
 * so we get tearing with freesync since we cannot flip multiple pipes
 * atomically.
 * We use GSL for this:
 * - immediate flip: find first available GSL group if not already assigned
 *                   program gsl with that group, set current OTG as master
 *                   and always us 0x4 = AND of flip_ready from all pipes
 * - vsync flip: disable GSL if used
 *
 * Groups in stream_res are stored as +1 from HW registers, i.e.
 * gsl_0 <=> pipe_ctx->stream_res.gsl_group == 1
 * Using a magic value like -1 would require tracking all inits/resets
 */
static void dcn20_setup_gsl_group_as_lock(
                const struct dc *dc,
                struct pipe_ctx *pipe_ctx,
                bool enable)
{
        struct gsl_params gsl;
        int group_idx;

        memset(&gsl, 0, sizeof(struct gsl_params));

        if (enable) {
                /* return if group already assigned since GSL was set up
                 * for vsync flip, we would unassign so it can't be "left over"
                 */
                if (pipe_ctx->stream_res.gsl_group > 0)
                        return;

                group_idx = find_free_gsl_group(dc);
                ASSERT(group_idx != 0);
                pipe_ctx->stream_res.gsl_group = group_idx;

                /* set gsl group reg field and mark resource used */
                switch (group_idx) {
                case 1:
                        gsl.gsl0_en = 1;
                        dc->res_pool->gsl_groups.gsl_0 = 1;
                        break;
                case 2:
                        gsl.gsl1_en = 1;
                        dc->res_pool->gsl_groups.gsl_1 = 1;
                        break;
                case 3:
                        gsl.gsl2_en = 1;
                        dc->res_pool->gsl_groups.gsl_2 = 1;
                        break;
                default:
                        BREAK_TO_DEBUGGER();
                        return; // invalid case
                }
                gsl.gsl_master_en = 1;
        } else {
                group_idx = pipe_ctx->stream_res.gsl_group;
                if (group_idx == 0)
                        return; // if not in use, just return

                pipe_ctx->stream_res.gsl_group = 0;

                /* unset gsl group reg field and mark resource free */
                switch (group_idx) {
                case 1:
                        gsl.gsl0_en = 0;
                        dc->res_pool->gsl_groups.gsl_0 = 0;
                        break;
                case 2:
                        gsl.gsl1_en = 0;
                        dc->res_pool->gsl_groups.gsl_1 = 0;
                        break;
                case 3:
                        gsl.gsl2_en = 0;
                        dc->res_pool->gsl_groups.gsl_2 = 0;
                        break;
                default:
                        BREAK_TO_DEBUGGER();
                        return;
                }
                gsl.gsl_master_en = 0;
        }

        /* at this point we want to program whether it's to enable or disable */
        if (pipe_ctx->stream_res.tg->funcs->set_gsl != NULL &&
                pipe_ctx->stream_res.tg->funcs->set_gsl_source_select != NULL) {
                pipe_ctx->stream_res.tg->funcs->set_gsl(
                        pipe_ctx->stream_res.tg,
                        &gsl);

                pipe_ctx->stream_res.tg->funcs->set_gsl_source_select(
                        pipe_ctx->stream_res.tg, group_idx,     enable ? 4 : 0);
        } else
                BREAK_TO_DEBUGGER();
}

void dcn20_set_flip_control_gsl(
                struct pipe_ctx *pipe_ctx,
                bool flip_immediate)
{
        if (pipe_ctx && pipe_ctx->plane_res.hubp->funcs->hubp_set_flip_control_surface_gsl)
                pipe_ctx->plane_res.hubp->funcs->hubp_set_flip_control_surface_gsl(
                                pipe_ctx->plane_res.hubp, flip_immediate);

}

void dcn20_enable_power_gating_plane(
        struct dce_hwseq *hws,
        bool enable)
{
        bool force_on = true; /* disable power gating */

        if (enable)
                force_on = false;

        /* DCHUBP0/1/2/3/4/5 */
        REG_UPDATE(DOMAIN0_PG_CONFIG, DOMAIN0_POWER_FORCEON, force_on);
        REG_UPDATE(DOMAIN2_PG_CONFIG, DOMAIN2_POWER_FORCEON, force_on);
        REG_UPDATE(DOMAIN4_PG_CONFIG, DOMAIN4_POWER_FORCEON, force_on);
        REG_UPDATE(DOMAIN6_PG_CONFIG, DOMAIN6_POWER_FORCEON, force_on);
        if (REG(DOMAIN8_PG_CONFIG))
                REG_UPDATE(DOMAIN8_PG_CONFIG, DOMAIN8_POWER_FORCEON, force_on);
        if (REG(DOMAIN10_PG_CONFIG))
                REG_UPDATE(DOMAIN10_PG_CONFIG, DOMAIN8_POWER_FORCEON, force_on);

        /* DPP0/1/2/3/4/5 */
        REG_UPDATE(DOMAIN1_PG_CONFIG, DOMAIN1_POWER_FORCEON, force_on);
        REG_UPDATE(DOMAIN3_PG_CONFIG, DOMAIN3_POWER_FORCEON, force_on);
        REG_UPDATE(DOMAIN5_PG_CONFIG, DOMAIN5_POWER_FORCEON, force_on);
        REG_UPDATE(DOMAIN7_PG_CONFIG, DOMAIN7_POWER_FORCEON, force_on);
        if (REG(DOMAIN9_PG_CONFIG))
                REG_UPDATE(DOMAIN9_PG_CONFIG, DOMAIN9_POWER_FORCEON, force_on);
        if (REG(DOMAIN11_PG_CONFIG))
                REG_UPDATE(DOMAIN11_PG_CONFIG, DOMAIN9_POWER_FORCEON, force_on);

        /* DCS0/1/2/3/4/5 */
        REG_UPDATE(DOMAIN16_PG_CONFIG, DOMAIN16_POWER_FORCEON, force_on);
        REG_UPDATE(DOMAIN17_PG_CONFIG, DOMAIN17_POWER_FORCEON, force_on);
        REG_UPDATE(DOMAIN18_PG_CONFIG, DOMAIN18_POWER_FORCEON, force_on);
        if (REG(DOMAIN19_PG_CONFIG))
                REG_UPDATE(DOMAIN19_PG_CONFIG, DOMAIN19_POWER_FORCEON, force_on);
        if (REG(DOMAIN20_PG_CONFIG))
                REG_UPDATE(DOMAIN20_PG_CONFIG, DOMAIN20_POWER_FORCEON, force_on);
        if (REG(DOMAIN21_PG_CONFIG))
                REG_UPDATE(DOMAIN21_PG_CONFIG, DOMAIN21_POWER_FORCEON, force_on);
}

void dcn20_dccg_init(struct dce_hwseq *hws)
{
        /*
         * set MICROSECOND_TIME_BASE_DIV
         * 100Mhz refclk -> 0x120264
         * 27Mhz refclk -> 0x12021b
         * 48Mhz refclk -> 0x120230
         *
         */
        REG_WRITE(MICROSECOND_TIME_BASE_DIV, 0x120264);

        /*
         * set MILLISECOND_TIME_BASE_DIV
         * 100Mhz refclk -> 0x1186a0
         * 27Mhz refclk -> 0x106978
         * 48Mhz refclk -> 0x10bb80
         *
         */
        REG_WRITE(MILLISECOND_TIME_BASE_DIV, 0x1186a0);

        /* This value is dependent on the hardware pipeline delay so set once per SOC */
        REG_WRITE(DISPCLK_FREQ_CHANGE_CNTL, 0xe01003c);
}

void dcn20_disable_vga(
        struct dce_hwseq *hws)
{
        REG_WRITE(D1VGA_CONTROL, 0);
        REG_WRITE(D2VGA_CONTROL, 0);
        REG_WRITE(D3VGA_CONTROL, 0);
        REG_WRITE(D4VGA_CONTROL, 0);
        REG_WRITE(D5VGA_CONTROL, 0);
        REG_WRITE(D6VGA_CONTROL, 0);
}

void dcn20_program_triple_buffer(
        const struct dc *dc,
        struct pipe_ctx *pipe_ctx,
        bool enable_triple_buffer)
{
        if (pipe_ctx->plane_res.hubp && pipe_ctx->plane_res.hubp->funcs) {
                pipe_ctx->plane_res.hubp->funcs->hubp_enable_tripleBuffer(
                        pipe_ctx->plane_res.hubp,
                        enable_triple_buffer);
        }
}

/* Blank pixel data during initialization */
void dcn20_init_blank(
                struct dc *dc,
                struct timing_generator *tg)
{
        struct dce_hwseq *hws = dc->hwseq;
        enum dc_color_space color_space;
        struct tg_color black_color = {0};
        struct output_pixel_processor *opp = NULL;
        struct output_pixel_processor *bottom_opp = NULL;
        uint32_t num_opps, opp_id_src0, opp_id_src1;
        uint32_t otg_active_width, otg_active_height;

        /* program opp dpg blank color */
        color_space = COLOR_SPACE_SRGB;
        color_space_to_black_color(dc, color_space, &black_color);

        /* get the OTG active size */
        tg->funcs->get_otg_active_size(tg,
                        &otg_active_width,
                        &otg_active_height);

        /* get the OPTC source */
        tg->funcs->get_optc_source(tg, &num_opps, &opp_id_src0, &opp_id_src1);

        if (opp_id_src0 >= dc->res_pool->res_cap->num_opp) {
                ASSERT(false);
                return;
        }
        opp = dc->res_pool->opps[opp_id_src0];

        if (num_opps == 2) {
                otg_active_width = otg_active_width / 2;

                if (opp_id_src1 >= dc->res_pool->res_cap->num_opp) {
                        ASSERT(false);
                        return;
                }
                bottom_opp = dc->res_pool->opps[opp_id_src1];
        }

        opp->funcs->opp_set_disp_pattern_generator(
                        opp,
                        CONTROLLER_DP_TEST_PATTERN_SOLID_COLOR,
                        CONTROLLER_DP_COLOR_SPACE_UDEFINED,
                        COLOR_DEPTH_UNDEFINED,
                        &black_color,
                        otg_active_width,
                        otg_active_height,
                        0);

        if (num_opps == 2) {
                bottom_opp->funcs->opp_set_disp_pattern_generator(
                                bottom_opp,
                                CONTROLLER_DP_TEST_PATTERN_SOLID_COLOR,
                                CONTROLLER_DP_COLOR_SPACE_UDEFINED,
                                COLOR_DEPTH_UNDEFINED,
                                &black_color,
                                otg_active_width,
                                otg_active_height,
                                0);
        }

        hws->funcs.wait_for_blank_complete(opp);
}

void dcn20_dsc_pg_control(
                struct dce_hwseq *hws,
                unsigned int dsc_inst,
                bool power_on)
{
        uint32_t power_gate = power_on ? 0 : 1;
        uint32_t pwr_status = power_on ? 0 : 2;
        uint32_t org_ip_request_cntl = 0;

        if (hws->ctx->dc->debug.disable_dsc_power_gate)
                return;

        if (REG(DOMAIN16_PG_CONFIG) == 0)
                return;

        REG_GET(DC_IP_REQUEST_CNTL, IP_REQUEST_EN, &org_ip_request_cntl);
        if (org_ip_request_cntl == 0)
                REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 1);

        switch (dsc_inst) {
        case 0: /* DSC0 */
                REG_UPDATE(DOMAIN16_PG_CONFIG,
                                DOMAIN16_POWER_GATE, power_gate);

                REG_WAIT(DOMAIN16_PG_STATUS,
                                DOMAIN16_PGFSM_PWR_STATUS, pwr_status,
                                1, 1000);
                break;
        case 1: /* DSC1 */
                REG_UPDATE(DOMAIN17_PG_CONFIG,
                                DOMAIN17_POWER_GATE, power_gate);

                REG_WAIT(DOMAIN17_PG_STATUS,
                                DOMAIN17_PGFSM_PWR_STATUS, pwr_status,
                                1, 1000);
                break;
        case 2: /* DSC2 */
                REG_UPDATE(DOMAIN18_PG_CONFIG,
                                DOMAIN18_POWER_GATE, power_gate);

                REG_WAIT(DOMAIN18_PG_STATUS,
                                DOMAIN18_PGFSM_PWR_STATUS, pwr_status,
                                1, 1000);
                break;
        case 3: /* DSC3 */
                REG_UPDATE(DOMAIN19_PG_CONFIG,
                                DOMAIN19_POWER_GATE, power_gate);

                REG_WAIT(DOMAIN19_PG_STATUS,
                                DOMAIN19_PGFSM_PWR_STATUS, pwr_status,
                                1, 1000);
                break;
        case 4: /* DSC4 */
                REG_UPDATE(DOMAIN20_PG_CONFIG,
                                DOMAIN20_POWER_GATE, power_gate);

                REG_WAIT(DOMAIN20_PG_STATUS,
                                DOMAIN20_PGFSM_PWR_STATUS, pwr_status,
                                1, 1000);
                break;
        case 5: /* DSC5 */
                REG_UPDATE(DOMAIN21_PG_CONFIG,
                                DOMAIN21_POWER_GATE, power_gate);

                REG_WAIT(DOMAIN21_PG_STATUS,
                                DOMAIN21_PGFSM_PWR_STATUS, pwr_status,
                                1, 1000);
                break;
        default:
                BREAK_TO_DEBUGGER();
                break;
        }

        if (org_ip_request_cntl == 0)
                REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 0);
}

void dcn20_dpp_pg_control(
                struct dce_hwseq *hws,
                unsigned int dpp_inst,
                bool power_on)
{
        uint32_t power_gate = power_on ? 0 : 1;
        uint32_t pwr_status = power_on ? 0 : 2;

        if (hws->ctx->dc->debug.disable_dpp_power_gate)
                return;
        if (REG(DOMAIN1_PG_CONFIG) == 0)
                return;

        switch (dpp_inst) {
        case 0: /* DPP0 */
                REG_UPDATE(DOMAIN1_PG_CONFIG,
                                DOMAIN1_POWER_GATE, power_gate);

                REG_WAIT(DOMAIN1_PG_STATUS,
                                DOMAIN1_PGFSM_PWR_STATUS, pwr_status,
                                1, 1000);
                break;
        case 1: /* DPP1 */
                REG_UPDATE(DOMAIN3_PG_CONFIG,
                                DOMAIN3_POWER_GATE, power_gate);

                REG_WAIT(DOMAIN3_PG_STATUS,
                                DOMAIN3_PGFSM_PWR_STATUS, pwr_status,
                                1, 1000);
                break;
        case 2: /* DPP2 */
                REG_UPDATE(DOMAIN5_PG_CONFIG,
                                DOMAIN5_POWER_GATE, power_gate);

                REG_WAIT(DOMAIN5_PG_STATUS,
                                DOMAIN5_PGFSM_PWR_STATUS, pwr_status,
                                1, 1000);
                break;
        case 3: /* DPP3 */
                REG_UPDATE(DOMAIN7_PG_CONFIG,
                                DOMAIN7_POWER_GATE, power_gate);

                REG_WAIT(DOMAIN7_PG_STATUS,
                                DOMAIN7_PGFSM_PWR_STATUS, pwr_status,
                                1, 1000);
                break;
        case 4: /* DPP4 */
                REG_UPDATE(DOMAIN9_PG_CONFIG,
                                DOMAIN9_POWER_GATE, power_gate);

                REG_WAIT(DOMAIN9_PG_STATUS,
                                DOMAIN9_PGFSM_PWR_STATUS, pwr_status,
                                1, 1000);
                break;
        case 5: /* DPP5 */
                /*
                 * Do not power gate DPP5, should be left at HW default, power on permanently.
                 * PG on Pipe5 is De-featured, attempting to put it to PG state may result in hard
                 * reset.
                 * REG_UPDATE(DOMAIN11_PG_CONFIG,
                 *              DOMAIN11_POWER_GATE, power_gate);
                 *
                 * REG_WAIT(DOMAIN11_PG_STATUS,
                 *              DOMAIN11_PGFSM_PWR_STATUS, pwr_status,
                 *              1, 1000);
                 */
                break;
        default:
                BREAK_TO_DEBUGGER();
                break;
        }
}


void dcn20_hubp_pg_control(
                struct dce_hwseq *hws,
                unsigned int hubp_inst,
                bool power_on)
{
        uint32_t power_gate = power_on ? 0 : 1;
        uint32_t pwr_status = power_on ? 0 : 2;

        if (hws->ctx->dc->debug.disable_hubp_power_gate)
                return;
        if (REG(DOMAIN0_PG_CONFIG) == 0)
                return;

        switch (hubp_inst) {
        case 0: /* DCHUBP0 */
                REG_UPDATE(DOMAIN0_PG_CONFIG,
                                DOMAIN0_POWER_GATE, power_gate);

                REG_WAIT(DOMAIN0_PG_STATUS,
                                DOMAIN0_PGFSM_PWR_STATUS, pwr_status,
                                1, 1000);
                break;
        case 1: /* DCHUBP1 */
                REG_UPDATE(DOMAIN2_PG_CONFIG,
                                DOMAIN2_POWER_GATE, power_gate);

                REG_WAIT(DOMAIN2_PG_STATUS,
                                DOMAIN2_PGFSM_PWR_STATUS, pwr_status,
                                1, 1000);
                break;
        case 2: /* DCHUBP2 */
                REG_UPDATE(DOMAIN4_PG_CONFIG,
                                DOMAIN4_POWER_GATE, power_gate);

                REG_WAIT(DOMAIN4_PG_STATUS,
                                DOMAIN4_PGFSM_PWR_STATUS, pwr_status,
                                1, 1000);
                break;
        case 3: /* DCHUBP3 */
                REG_UPDATE(DOMAIN6_PG_CONFIG,
                                DOMAIN6_POWER_GATE, power_gate);

                REG_WAIT(DOMAIN6_PG_STATUS,
                                DOMAIN6_PGFSM_PWR_STATUS, pwr_status,
                                1, 1000);
                break;
        case 4: /* DCHUBP4 */
                REG_UPDATE(DOMAIN8_PG_CONFIG,
                                DOMAIN8_POWER_GATE, power_gate);

                REG_WAIT(DOMAIN8_PG_STATUS,
                                DOMAIN8_PGFSM_PWR_STATUS, pwr_status,
                                1, 1000);
                break;
        case 5: /* DCHUBP5 */
                /*
                 * Do not power gate DCHUB5, should be left at HW default, power on permanently.
                 * PG on Pipe5 is De-featured, attempting to put it to PG state may result in hard
                 * reset.
                 * REG_UPDATE(DOMAIN10_PG_CONFIG,
                 *              DOMAIN10_POWER_GATE, power_gate);
                 *
                 * REG_WAIT(DOMAIN10_PG_STATUS,
                 *              DOMAIN10_PGFSM_PWR_STATUS, pwr_status,
                 *              1, 1000);
                 */
                break;
        default:
                BREAK_TO_DEBUGGER();
                break;
        }
}


/* disable HW used by plane.
 * note:  cannot disable until disconnect is complete
 */
void dcn20_plane_atomic_disable(struct dc *dc, struct pipe_ctx *pipe_ctx)
{
        struct dce_hwseq *hws = dc->hwseq;
        struct hubp *hubp = pipe_ctx->plane_res.hubp;
        struct dpp *dpp = pipe_ctx->plane_res.dpp;

        dc->hwss.wait_for_mpcc_disconnect(dc, dc->res_pool, pipe_ctx);

        /* In flip immediate with pipe splitting case GSL is used for
         * synchronization so we must disable it when the plane is disabled.
         */
        if (pipe_ctx->stream_res.gsl_group != 0)
                dcn20_setup_gsl_group_as_lock(dc, pipe_ctx, false);

        dc->hwss.set_flip_control_gsl(pipe_ctx, false);

        hubp->funcs->hubp_clk_cntl(hubp, false);

        dpp->funcs->dpp_dppclk_control(dpp, false, false);

        hubp->power_gated = true;

        hws->funcs.plane_atomic_power_down(dc,
                        pipe_ctx->plane_res.dpp,
                        pipe_ctx->plane_res.hubp);

        pipe_ctx->stream = NULL;
        memset(&pipe_ctx->stream_res, 0, sizeof(pipe_ctx->stream_res));
        memset(&pipe_ctx->plane_res, 0, sizeof(pipe_ctx->plane_res));
        pipe_ctx->top_pipe = NULL;
        pipe_ctx->bottom_pipe = NULL;
        pipe_ctx->plane_state = NULL;
}


void dcn20_disable_plane(struct dc *dc, struct pipe_ctx *pipe_ctx)
{
        DC_LOGGER_INIT(dc->ctx->logger);

        if (!pipe_ctx->plane_res.hubp || pipe_ctx->plane_res.hubp->power_gated)
                return;

        dcn20_plane_atomic_disable(dc, pipe_ctx);

        DC_LOG_DC("Power down front end %d\n",
                                        pipe_ctx->pipe_idx);
}

static int calc_mpc_flow_ctrl_cnt(const struct dc_stream_state *stream,
                int opp_cnt)
{
        bool hblank_halved = optc2_is_two_pixels_per_containter(&stream->timing);
        int flow_ctrl_cnt;

        if (opp_cnt >= 2)
                hblank_halved = true;

        flow_ctrl_cnt = stream->timing.h_total - stream->timing.h_addressable -
                        stream->timing.h_border_left -
                        stream->timing.h_border_right;

        if (hblank_halved)
                flow_ctrl_cnt /= 2;

        /* ODM combine 4:1 case */
        if (opp_cnt == 4)
                flow_ctrl_cnt /= 2;

        return flow_ctrl_cnt;
}

enum dc_status dcn20_enable_stream_timing(
                struct pipe_ctx *pipe_ctx,
                struct dc_state *context,
                struct dc *dc)
{
        struct dce_hwseq *hws = dc->hwseq;
        struct dc_stream_state *stream = pipe_ctx->stream;
        struct drr_params params = {0};
        unsigned int event_triggers = 0;
        struct pipe_ctx *odm_pipe;
        int opp_cnt = 1;
        int opp_inst[MAX_PIPES] = { pipe_ctx->stream_res.opp->inst };
        bool interlace = stream->timing.flags.INTERLACE;
        int i;
        struct mpc_dwb_flow_control flow_control;
        struct mpc *mpc = dc->res_pool->mpc;
        bool rate_control_2x_pclk = (interlace || optc2_is_two_pixels_per_containter(&stream->timing));

        /* by upper caller loop, pipe0 is parent pipe and be called first.
         * back end is set up by for pipe0. Other children pipe share back end
         * with pipe 0. No program is needed.
         */
        if (pipe_ctx->top_pipe != NULL)
                return DC_OK;

        /* TODO check if timing_changed, disable stream if timing changed */

        for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) {
                opp_inst[opp_cnt] = odm_pipe->stream_res.opp->inst;
                opp_cnt++;
        }

        if (opp_cnt > 1)
                pipe_ctx->stream_res.tg->funcs->set_odm_combine(
                                pipe_ctx->stream_res.tg,
                                opp_inst, opp_cnt,
                                &pipe_ctx->stream->timing);

        /* HW program guide assume display already disable
         * by unplug sequence. OTG assume stop.
         */
        pipe_ctx->stream_res.tg->funcs->enable_optc_clock(pipe_ctx->stream_res.tg, true);

        if (false == pipe_ctx->clock_source->funcs->program_pix_clk(
                        pipe_ctx->clock_source,
                        &pipe_ctx->stream_res.pix_clk_params,
                        &pipe_ctx->pll_settings)) {
                BREAK_TO_DEBUGGER();
                return DC_ERROR_UNEXPECTED;
        }

        if (dc->hwseq->funcs.PLAT_58856_wa && (!dc_is_dp_signal(stream->signal)))
                dc->hwseq->funcs.PLAT_58856_wa(context, pipe_ctx);

        pipe_ctx->stream_res.tg->funcs->program_timing(
                        pipe_ctx->stream_res.tg,
                        &stream->timing,
                        pipe_ctx->pipe_dlg_param.vready_offset,
                        pipe_ctx->pipe_dlg_param.vstartup_start,
                        pipe_ctx->pipe_dlg_param.vupdate_offset,
                        pipe_ctx->pipe_dlg_param.vupdate_width,
                        pipe_ctx->stream->signal,
                        true);

        rate_control_2x_pclk = rate_control_2x_pclk || opp_cnt > 1;
        flow_control.flow_ctrl_mode = 0;
        flow_control.flow_ctrl_cnt0 = 0x80;
        flow_control.flow_ctrl_cnt1 = calc_mpc_flow_ctrl_cnt(stream, opp_cnt);
        if (mpc->funcs->set_out_rate_control) {
                for (i = 0; i < opp_cnt; ++i) {
                        mpc->funcs->set_out_rate_control(
                                        mpc, opp_inst[i],
                                        true,
                                        rate_control_2x_pclk,
                                        &flow_control);
                }
        }

        for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe)
                odm_pipe->stream_res.opp->funcs->opp_pipe_clock_control(
                                odm_pipe->stream_res.opp,
                                true);

        pipe_ctx->stream_res.opp->funcs->opp_pipe_clock_control(
                        pipe_ctx->stream_res.opp,
                        true);

        hws->funcs.blank_pixel_data(dc, pipe_ctx, true);

        /* VTG is  within DCHUB command block. DCFCLK is always on */
        if (false == pipe_ctx->stream_res.tg->funcs->enable_crtc(pipe_ctx->stream_res.tg)) {
                BREAK_TO_DEBUGGER();
                return DC_ERROR_UNEXPECTED;
        }

        hws->funcs.wait_for_blank_complete(pipe_ctx->stream_res.opp);

        params.vertical_total_min = stream->adjust.v_total_min;
        params.vertical_total_max = stream->adjust.v_total_max;
        params.vertical_total_mid = stream->adjust.v_total_mid;
        params.vertical_total_mid_frame_num = stream->adjust.v_total_mid_frame_num;
        if (pipe_ctx->stream_res.tg->funcs->set_drr)
                pipe_ctx->stream_res.tg->funcs->set_drr(
                        pipe_ctx->stream_res.tg, &params);

        // DRR should set trigger event to monitor surface update event
        if (stream->adjust.v_total_min != 0 && stream->adjust.v_total_max != 0)
                event_triggers = 0x80;
        /* Event triggers and num frames initialized for DRR, but can be
         * later updated for PSR use. Note DRR trigger events are generated
         * regardless of whether num frames met.
         */
        if (pipe_ctx->stream_res.tg->funcs->set_static_screen_control)
                pipe_ctx->stream_res.tg->funcs->set_static_screen_control(
                                pipe_ctx->stream_res.tg, event_triggers, 2);

        /* TODO program crtc source select for non-virtual signal*/
        /* TODO program FMT */
        /* TODO setup link_enc */
        /* TODO set stream attributes */
        /* TODO program audio */
        /* TODO enable stream if timing changed */
        /* TODO unblank stream if DP */

        return DC_OK;
}

void dcn20_program_output_csc(struct dc *dc,
                struct pipe_ctx *pipe_ctx,
                enum dc_color_space colorspace,
                uint16_t *matrix,
                int opp_id)
{
        struct mpc *mpc = dc->res_pool->mpc;
        enum mpc_output_csc_mode ocsc_mode = MPC_OUTPUT_CSC_COEF_A;
        int mpcc_id = pipe_ctx->plane_res.hubp->inst;

        if (mpc->funcs->power_on_mpc_mem_pwr)
                mpc->funcs->power_on_mpc_mem_pwr(mpc, mpcc_id, true);

        if (pipe_ctx->stream->csc_color_matrix.enable_adjustment == true) {
                if (mpc->funcs->set_output_csc != NULL)
                        mpc->funcs->set_output_csc(mpc,
                                        opp_id,
                                        matrix,
                                        ocsc_mode);
        } else {
                if (mpc->funcs->set_ocsc_default != NULL)
                        mpc->funcs->set_ocsc_default(mpc,
                                        opp_id,
                                        colorspace,
                                        ocsc_mode);
        }
}

bool dcn20_set_output_transfer_func(struct dc *dc, struct pipe_ctx *pipe_ctx,
                                const struct dc_stream_state *stream)
{
        int mpcc_id = pipe_ctx->plane_res.hubp->inst;
        struct mpc *mpc = pipe_ctx->stream_res.opp->ctx->dc->res_pool->mpc;
        struct pwl_params *params = NULL;
        /*
         * program OGAM only for the top pipe
         * if there is a pipe split then fix diagnostic is required:
         * how to pass OGAM parameter for stream.
         * if programming for all pipes is required then remove condition
         * pipe_ctx->top_pipe == NULL ,but then fix the diagnostic.
         */
        if (mpc->funcs->power_on_mpc_mem_pwr)
                mpc->funcs->power_on_mpc_mem_pwr(mpc, mpcc_id, true);
        if (pipe_ctx->top_pipe == NULL
                        && mpc->funcs->set_output_gamma && stream->out_transfer_func) {
                if (stream->out_transfer_func->type == TF_TYPE_HWPWL)
                        params = &stream->out_transfer_func->pwl;
                else if (pipe_ctx->stream->out_transfer_func->type ==
                        TF_TYPE_DISTRIBUTED_POINTS &&
                        cm_helper_translate_curve_to_hw_format(
                        stream->out_transfer_func,
                        &mpc->blender_params, false))
                        params = &mpc->blender_params;
                /*
                 * there is no ROM
                 */
                if (stream->out_transfer_func->type == TF_TYPE_PREDEFINED)
                        BREAK_TO_DEBUGGER();
        }
        /*
         * if above if is not executed then 'params' equal to 0 and set in bypass
         */
        mpc->funcs->set_output_gamma(mpc, mpcc_id, params);

        return true;
}

bool dcn20_set_blend_lut(
        struct pipe_ctx *pipe_ctx, const struct dc_plane_state *plane_state)
{
        struct dpp *dpp_base = pipe_ctx->plane_res.dpp;
        bool result = true;
        struct pwl_params *blend_lut = NULL;

        if (plane_state->blend_tf) {
                if (plane_state->blend_tf->type == TF_TYPE_HWPWL)
                        blend_lut = &plane_state->blend_tf->pwl;
                else if (plane_state->blend_tf->type == TF_TYPE_DISTRIBUTED_POINTS) {
                        cm_helper_translate_curve_to_hw_format(
                                        plane_state->blend_tf,
                                        &dpp_base->regamma_params, false);
                        blend_lut = &dpp_base->regamma_params;
                }
        }
        result = dpp_base->funcs->dpp_program_blnd_lut(dpp_base, blend_lut);

        return result;
}

bool dcn20_set_shaper_3dlut(
        struct pipe_ctx *pipe_ctx, const struct dc_plane_state *plane_state)
{
        struct dpp *dpp_base = pipe_ctx->plane_res.dpp;
        bool result = true;
        struct pwl_params *shaper_lut = NULL;

        if (plane_state->in_shaper_func) {
                if (plane_state->in_shaper_func->type == TF_TYPE_HWPWL)
                        shaper_lut = &plane_state->in_shaper_func->pwl;
                else if (plane_state->in_shaper_func->type == TF_TYPE_DISTRIBUTED_POINTS) {
                        cm_helper_translate_curve_to_hw_format(
                                        plane_state->in_shaper_func,
                                        &dpp_base->shaper_params, true);
                        shaper_lut = &dpp_base->shaper_params;
                }
        }

        result = dpp_base->funcs->dpp_program_shaper_lut(dpp_base, shaper_lut);
        if (plane_state->lut3d_func &&
                plane_state->lut3d_func->state.bits.initialized == 1)
                result = dpp_base->funcs->dpp_program_3dlut(dpp_base,
                                                                &plane_state->lut3d_func->lut_3d);
        else
                result = dpp_base->funcs->dpp_program_3dlut(dpp_base, NULL);

        return result;
}

bool dcn20_set_input_transfer_func(struct dc *dc,
                                struct pipe_ctx *pipe_ctx,
                                const struct dc_plane_state *plane_state)
{
        struct dce_hwseq *hws = dc->hwseq;
        struct dpp *dpp_base = pipe_ctx->plane_res.dpp;
        const struct dc_transfer_func *tf = NULL;
        bool result = true;
        bool use_degamma_ram = false;

        if (dpp_base == NULL || plane_state == NULL)
                return false;

        hws->funcs.set_shaper_3dlut(pipe_ctx, plane_state);
        hws->funcs.set_blend_lut(pipe_ctx, plane_state);

        if (plane_state->in_transfer_func)
                tf = plane_state->in_transfer_func;


        if (tf == NULL) {
                dpp_base->funcs->dpp_set_degamma(dpp_base,
                                IPP_DEGAMMA_MODE_BYPASS);
                return true;
        }

        if (tf->type == TF_TYPE_HWPWL || tf->type == TF_TYPE_DISTRIBUTED_POINTS)
                use_degamma_ram = true;

        if (use_degamma_ram == true) {
                if (tf->type == TF_TYPE_HWPWL)
                        dpp_base->funcs->dpp_program_degamma_pwl(dpp_base,
                                        &tf->pwl);
                else if (tf->type == TF_TYPE_DISTRIBUTED_POINTS) {
                        cm_helper_translate_curve_to_degamma_hw_format(tf,
                                        &dpp_base->degamma_params);
                        dpp_base->funcs->dpp_program_degamma_pwl(dpp_base,
                                &dpp_base->degamma_params);
                }
                return true;
        }
        /* handle here the optimized cases when de-gamma ROM could be used.
         *
         */
        if (tf->type == TF_TYPE_PREDEFINED) {
                switch (tf->tf) {
                case TRANSFER_FUNCTION_SRGB:
                        dpp_base->funcs->dpp_set_degamma(dpp_base,
                                        IPP_DEGAMMA_MODE_HW_sRGB);
                        break;
                case TRANSFER_FUNCTION_BT709:
                        dpp_base->funcs->dpp_set_degamma(dpp_base,
                                        IPP_DEGAMMA_MODE_HW_xvYCC);
                        break;
                case TRANSFER_FUNCTION_LINEAR:
                        dpp_base->funcs->dpp_set_degamma(dpp_base,
                                        IPP_DEGAMMA_MODE_BYPASS);
                        break;
                case TRANSFER_FUNCTION_PQ:
                        dpp_base->funcs->dpp_set_degamma(dpp_base, IPP_DEGAMMA_MODE_USER_PWL);
                        cm_helper_translate_curve_to_degamma_hw_format(tf, &dpp_base->degamma_params);
                        dpp_base->funcs->dpp_program_degamma_pwl(dpp_base, &dpp_base->degamma_params);
                        result = true;
                        break;
                default:
                        result = false;
                        break;
                }
        } else if (tf->type == TF_TYPE_BYPASS)
                dpp_base->funcs->dpp_set_degamma(dpp_base,
                                IPP_DEGAMMA_MODE_BYPASS);
        else {
                /*
                 * if we are here, we did not handle correctly.
                 * fix is required for this use case
                 */
                BREAK_TO_DEBUGGER();
                dpp_base->funcs->dpp_set_degamma(dpp_base,
                                IPP_DEGAMMA_MODE_BYPASS);
        }

        return result;
}

void dcn20_update_odm(struct dc *dc, struct dc_state *context, struct pipe_ctx *pipe_ctx)
{
        struct pipe_ctx *odm_pipe;
        int opp_cnt = 1;
        int opp_inst[MAX_PIPES] = { pipe_ctx->stream_res.opp->inst };

        for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) {
                opp_inst[opp_cnt] = odm_pipe->stream_res.opp->inst;
                opp_cnt++;
        }

        if (opp_cnt > 1)
                pipe_ctx->stream_res.tg->funcs->set_odm_combine(
                                pipe_ctx->stream_res.tg,
                                opp_inst, opp_cnt,
                                &pipe_ctx->stream->timing);
        else
                pipe_ctx->stream_res.tg->funcs->set_odm_bypass(
                                pipe_ctx->stream_res.tg, &pipe_ctx->stream->timing);
}

void dcn20_blank_pixel_data(
                struct dc *dc,
                struct pipe_ctx *pipe_ctx,
                bool blank)
{
        struct tg_color black_color = {0};
        struct stream_resource *stream_res = &pipe_ctx->stream_res;
        struct dc_stream_state *stream = pipe_ctx->stream;
        enum dc_color_space color_space = stream->output_color_space;
        enum controller_dp_test_pattern test_pattern = CONTROLLER_DP_TEST_PATTERN_SOLID_COLOR;
        enum controller_dp_color_space test_pattern_color_space = CONTROLLER_DP_COLOR_SPACE_UDEFINED;
        struct pipe_ctx *odm_pipe;
        int odm_cnt = 1;

        int width = stream->timing.h_addressable + stream->timing.h_border_left + stream->timing.h_border_right;
        int height = stream->timing.v_addressable + stream->timing.v_border_bottom + stream->timing.v_border_top;

        if (stream->link->test_pattern_enabled)
                return;

        /* get opp dpg blank color */
        color_space_to_black_color(dc, color_space, &black_color);

        for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe)
                odm_cnt++;

        width = width / odm_cnt;

        if (blank) {
                dc->hwss.set_abm_immediate_disable(pipe_ctx);

                if (dc->debug.visual_confirm != VISUAL_CONFIRM_DISABLE) {
                        test_pattern = CONTROLLER_DP_TEST_PATTERN_COLORSQUARES;
                        test_pattern_color_space = CONTROLLER_DP_COLOR_SPACE_RGB;
                }
        } else {
                test_pattern = CONTROLLER_DP_TEST_PATTERN_VIDEOMODE;
        }

        dc->hwss.set_disp_pattern_generator(dc,
                        pipe_ctx,
                        test_pattern,
                        test_pattern_color_space,
                        stream->timing.display_color_depth,
                        &black_color,
                        width,
                        height,
                        0);

        for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) {
                dc->hwss.set_disp_pattern_generator(dc,
                                odm_pipe,
                                dc->debug.visual_confirm != VISUAL_CONFIRM_DISABLE && blank ?
                                                CONTROLLER_DP_TEST_PATTERN_COLORRAMP : test_pattern,
                                test_pattern_color_space,
                                stream->timing.display_color_depth,
                                &black_color,
                                width,
                                height,
                                0);
        }

        if (!blank)
                if (stream_res->abm) {
                        dc->hwss.set_pipe(pipe_ctx);
                        stream_res->abm->funcs->set_abm_level(stream_res->abm, stream->abm_level);
                }
}


static void dcn20_power_on_plane(
        struct dce_hwseq *hws,
        struct pipe_ctx *pipe_ctx)
{
        DC_LOGGER_INIT(hws->ctx->logger);
        if (REG(DC_IP_REQUEST_CNTL)) {
                REG_SET(DC_IP_REQUEST_CNTL, 0,
                                IP_REQUEST_EN, 1);

                if (hws->funcs.dpp_pg_control)
                        hws->funcs.dpp_pg_control(hws, pipe_ctx->plane_res.dpp->inst, true);

                if (hws->funcs.hubp_pg_control)
                        hws->funcs.hubp_pg_control(hws, pipe_ctx->plane_res.hubp->inst, true);

                REG_SET(DC_IP_REQUEST_CNTL, 0,
                                IP_REQUEST_EN, 0);
                DC_LOG_DEBUG(
                                "Un-gated front end for pipe %d\n", pipe_ctx->plane_res.hubp->inst);
        }
}

void dcn20_enable_plane(
        struct dc *dc,
        struct pipe_ctx *pipe_ctx,
        struct dc_state *context)
{
        //if (dc->debug.sanity_checks) {
        //      dcn10_verify_allow_pstate_change_high(dc);
        //}
        dcn20_power_on_plane(dc->hwseq, pipe_ctx);

        /* enable DCFCLK current DCHUB */
        pipe_ctx->plane_res.hubp->funcs->hubp_clk_cntl(pipe_ctx->plane_res.hubp, true);

        /* initialize HUBP on power up */
        pipe_ctx->plane_res.hubp->funcs->hubp_init(pipe_ctx->plane_res.hubp);

        /* make sure OPP_PIPE_CLOCK_EN = 1 */
        pipe_ctx->stream_res.opp->funcs->opp_pipe_clock_control(
                        pipe_ctx->stream_res.opp,
                        true);

/* TODO: enable/disable in dm as per update type.
        if (plane_state) {
                DC_LOG_DC(dc->ctx->logger,
                                "Pipe:%d 0x%x: addr hi:0x%x, "
                                "addr low:0x%x, "
                                "src: %d, %d, %d,"
                                " %d; dst: %d, %d, %d, %d;\n",
                                pipe_ctx->pipe_idx,
                                plane_state,
                                plane_state->address.grph.addr.high_part,
                                plane_state->address.grph.addr.low_part,
                                plane_state->src_rect.x,
                                plane_state->src_rect.y,
                                plane_state->src_rect.width,
                                plane_state->src_rect.height,
                                plane_state->dst_rect.x,
                                plane_state->dst_rect.y,
                                plane_state->dst_rect.width,
                                plane_state->dst_rect.height);

                DC_LOG_DC(dc->ctx->logger,
                                "Pipe %d: width, height, x, y         format:%d\n"
                                "viewport:%d, %d, %d, %d\n"
                                "recout:  %d, %d, %d, %d\n",
                                pipe_ctx->pipe_idx,
                                plane_state->format,
                                pipe_ctx->plane_res.scl_data.viewport.width,
                                pipe_ctx->plane_res.scl_data.viewport.height,
                                pipe_ctx->plane_res.scl_data.viewport.x,
                                pipe_ctx->plane_res.scl_data.viewport.y,
                                pipe_ctx->plane_res.scl_data.recout.width,
                                pipe_ctx->plane_res.scl_data.recout.height,
                                pipe_ctx->plane_res.scl_data.recout.x,
                                pipe_ctx->plane_res.scl_data.recout.y);
                print_rq_dlg_ttu(dc, pipe_ctx);
        }
*/
        if (dc->vm_pa_config.valid) {
                struct vm_system_aperture_param apt;

                apt.sys_default.quad_part = 0;

                apt.sys_low.quad_part = dc->vm_pa_config.system_aperture.start_addr;
                apt.sys_high.quad_part = dc->vm_pa_config.system_aperture.end_addr;

                // Program system aperture settings
                pipe_ctx->plane_res.hubp->funcs->hubp_set_vm_system_aperture_settings(pipe_ctx->plane_res.hubp, &apt);
        }

        if (!pipe_ctx->top_pipe
                && pipe_ctx->plane_state
                && pipe_ctx->plane_state->flip_int_enabled
                && pipe_ctx->plane_res.hubp->funcs->hubp_set_flip_int)
                        pipe_ctx->plane_res.hubp->funcs->hubp_set_flip_int(pipe_ctx->plane_res.hubp);

//      if (dc->debug.sanity_checks) {
//              dcn10_verify_allow_pstate_change_high(dc);
//      }
}

void dcn20_pipe_control_lock(
        struct dc *dc,
        struct pipe_ctx *pipe,
        bool lock)
{
        struct pipe_ctx *temp_pipe;
        bool flip_immediate = false;

        /* use TG master update lock to lock everything on the TG
         * therefore only top pipe need to lock
         */
        if (!pipe || pipe->top_pipe)
                return;

        if (pipe->plane_state != NULL)
                flip_immediate = pipe->plane_state->flip_immediate;

        if  (pipe->stream_res.gsl_group > 0) {
            temp_pipe = pipe->bottom_pipe;
            while (!flip_immediate && temp_pipe) {
                    if (temp_pipe->plane_state != NULL)
                            flip_immediate = temp_pipe->plane_state->flip_immediate;
                    temp_pipe = temp_pipe->bottom_pipe;
            }
        }

        if (flip_immediate && lock) {
                const int TIMEOUT_FOR_FLIP_PENDING = 100000;
                int i;

                temp_pipe = pipe;
                while (temp_pipe) {
                        if (temp_pipe->plane_state && temp_pipe->plane_state->flip_immediate) {
                                for (i = 0; i < TIMEOUT_FOR_FLIP_PENDING; ++i) {
                                        if (!temp_pipe->plane_res.hubp->funcs->hubp_is_flip_pending(temp_pipe->plane_res.hubp))
                                                break;
                                        udelay(1);
                                }

                                /* no reason it should take this long for immediate flips */
                                ASSERT(i != TIMEOUT_FOR_FLIP_PENDING);
                        }
                        temp_pipe = temp_pipe->bottom_pipe;
                }
        }

        /* In flip immediate and pipe splitting case, we need to use GSL
         * for synchronization. Only do setup on locking and on flip type change.
         */
        if (lock && (pipe->bottom_pipe != NULL || !flip_immediate))
                if ((flip_immediate && pipe->stream_res.gsl_group == 0) ||
                    (!flip_immediate && pipe->stream_res.gsl_group > 0))
                        dcn20_setup_gsl_group_as_lock(dc, pipe, flip_immediate);

        if (pipe->plane_state != NULL)
                flip_immediate = pipe->plane_state->flip_immediate;

        temp_pipe = pipe->bottom_pipe;
        while (flip_immediate && temp_pipe) {
            if (temp_pipe->plane_state != NULL)
                flip_immediate = temp_pipe->plane_state->flip_immediate;
            temp_pipe = temp_pipe->bottom_pipe;
        }

        if (!lock && pipe->stream_res.gsl_group > 0 && pipe->plane_state &&
                !flip_immediate)
            dcn20_setup_gsl_group_as_lock(dc, pipe, false);

        if (pipe->stream && should_use_dmub_lock(pipe->stream->link)) {
                union dmub_hw_lock_flags hw_locks = { 0 };
                struct dmub_hw_lock_inst_flags inst_flags = { 0 };

                hw_locks.bits.lock_pipe = 1;
                inst_flags.otg_inst =  pipe->stream_res.tg->inst;

                if (pipe->plane_state != NULL)
                        hw_locks.bits.triple_buffer_lock = pipe->plane_state->triplebuffer_flips;

                dmub_hw_lock_mgr_cmd(dc->ctx->dmub_srv,
                                        lock,
                                        &hw_locks,
                                        &inst_flags);
        } else if (pipe->plane_state != NULL && pipe->plane_state->triplebuffer_flips) {
                if (lock)
                        pipe->stream_res.tg->funcs->triplebuffer_lock(pipe->stream_res.tg);
                else
                        pipe->stream_res.tg->funcs->triplebuffer_unlock(pipe->stream_res.tg);
        } else {
                if (lock)
                        pipe->stream_res.tg->funcs->lock(pipe->stream_res.tg);
                else
                        pipe->stream_res.tg->funcs->unlock(pipe->stream_res.tg);
        }
}

static void dcn20_detect_pipe_changes(struct pipe_ctx *old_pipe, struct pipe_ctx *new_pipe)
{
        new_pipe->update_flags.raw = 0;

        /* Exit on unchanged, unused pipe */
        if (!old_pipe->plane_state && !new_pipe->plane_state)
                return;
        /* Detect pipe enable/disable */
        if (!old_pipe->plane_state && new_pipe->plane_state) {
                new_pipe->update_flags.bits.enable = 1;
                new_pipe->update_flags.bits.mpcc = 1;
                new_pipe->update_flags.bits.dppclk = 1;
                new_pipe->update_flags.bits.hubp_interdependent = 1;
                new_pipe->update_flags.bits.hubp_rq_dlg_ttu = 1;
                new_pipe->update_flags.bits.gamut_remap = 1;
                new_pipe->update_flags.bits.scaler = 1;
                new_pipe->update_flags.bits.viewport = 1;
                new_pipe->update_flags.bits.det_size = 1;
                if (!new_pipe->top_pipe && !new_pipe->prev_odm_pipe) {
                        new_pipe->update_flags.bits.odm = 1;
                        new_pipe->update_flags.bits.global_sync = 1;
                }
                return;
        }
        if (old_pipe->plane_state && !new_pipe->plane_state) {
                new_pipe->update_flags.bits.disable = 1;
                return;
        }

        /* Detect plane change */
        if (old_pipe->plane_state != new_pipe->plane_state) {
                new_pipe->update_flags.bits.plane_changed = true;
        }

        /* Detect top pipe only changes */
        if (!new_pipe->top_pipe && !new_pipe->prev_odm_pipe) {
                /* Detect odm changes */
                if ((old_pipe->next_odm_pipe && new_pipe->next_odm_pipe
                        && old_pipe->next_odm_pipe->pipe_idx != new_pipe->next_odm_pipe->pipe_idx)
                                || (!old_pipe->next_odm_pipe && new_pipe->next_odm_pipe)
                                || (old_pipe->next_odm_pipe && !new_pipe->next_odm_pipe)
                                || old_pipe->stream_res.opp != new_pipe->stream_res.opp)
                        new_pipe->update_flags.bits.odm = 1;

                /* Detect global sync changes */
                if (old_pipe->pipe_dlg_param.vready_offset != new_pipe->pipe_dlg_param.vready_offset
                                || old_pipe->pipe_dlg_param.vstartup_start != new_pipe->pipe_dlg_param.vstartup_start
                                || old_pipe->pipe_dlg_param.vupdate_offset != new_pipe->pipe_dlg_param.vupdate_offset
                                || old_pipe->pipe_dlg_param.vupdate_width != new_pipe->pipe_dlg_param.vupdate_width)
                        new_pipe->update_flags.bits.global_sync = 1;
        }

        if (old_pipe->det_buffer_size_kb != new_pipe->det_buffer_size_kb)
                new_pipe->update_flags.bits.det_size = 1;

        /*
         * Detect opp / tg change, only set on change, not on enable
         * Assume mpcc inst = pipe index, if not this code needs to be updated
         * since mpcc is what is affected by these. In fact all of our sequence
         * makes this assumption at the moment with how hubp reset is matched to
         * same index mpcc reset.
         */
        if (old_pipe->stream_res.opp != new_pipe->stream_res.opp)
                new_pipe->update_flags.bits.opp_changed = 1;
        if (old_pipe->stream_res.tg != new_pipe->stream_res.tg)
                new_pipe->update_flags.bits.tg_changed = 1;

        /*
         * Detect mpcc blending changes, only dpp inst and opp matter here,
         * mpccs getting removed/inserted update connected ones during their own
         * programming
         */
        if (old_pipe->plane_res.dpp != new_pipe->plane_res.dpp
                        || old_pipe->stream_res.opp != new_pipe->stream_res.opp)
                new_pipe->update_flags.bits.mpcc = 1;

        /* Detect dppclk change */
        if (old_pipe->plane_res.bw.dppclk_khz != new_pipe->plane_res.bw.dppclk_khz)
                new_pipe->update_flags.bits.dppclk = 1;

        /* Check for scl update */
        if (memcmp(&old_pipe->plane_res.scl_data, &new_pipe->plane_res.scl_data, sizeof(struct scaler_data)))
                        new_pipe->update_flags.bits.scaler = 1;
        /* Check for vp update */
        if (memcmp(&old_pipe->plane_res.scl_data.viewport, &new_pipe->plane_res.scl_data.viewport, sizeof(struct rect))
                        || memcmp(&old_pipe->plane_res.scl_data.viewport_c,
                                &new_pipe->plane_res.scl_data.viewport_c, sizeof(struct rect)))
                new_pipe->update_flags.bits.viewport = 1;

        /* Detect dlg/ttu/rq updates */
        {
                struct _vcs_dpi_display_dlg_regs_st old_dlg_attr = old_pipe->dlg_regs;
                struct _vcs_dpi_display_ttu_regs_st old_ttu_attr = old_pipe->ttu_regs;
                struct _vcs_dpi_display_dlg_regs_st *new_dlg_attr = &new_pipe->dlg_regs;
                struct _vcs_dpi_display_ttu_regs_st *new_ttu_attr = &new_pipe->ttu_regs;

                /* Detect pipe interdependent updates */
                if (old_dlg_attr.dst_y_prefetch != new_dlg_attr->dst_y_prefetch ||
                                old_dlg_attr.vratio_prefetch != new_dlg_attr->vratio_prefetch ||
                                old_dlg_attr.vratio_prefetch_c != new_dlg_attr->vratio_prefetch_c ||
                                old_dlg_attr.dst_y_per_vm_vblank != new_dlg_attr->dst_y_per_vm_vblank ||
                                old_dlg_attr.dst_y_per_row_vblank != new_dlg_attr->dst_y_per_row_vblank ||
                                old_dlg_attr.dst_y_per_vm_flip != new_dlg_attr->dst_y_per_vm_flip ||
                                old_dlg_attr.dst_y_per_row_flip != new_dlg_attr->dst_y_per_row_flip ||
                                old_dlg_attr.refcyc_per_meta_chunk_vblank_l != new_dlg_attr->refcyc_per_meta_chunk_vblank_l ||
                                old_dlg_attr.refcyc_per_meta_chunk_vblank_c != new_dlg_attr->refcyc_per_meta_chunk_vblank_c ||
                                old_dlg_attr.refcyc_per_meta_chunk_flip_l != new_dlg_attr->refcyc_per_meta_chunk_flip_l ||
                                old_dlg_attr.refcyc_per_line_delivery_pre_l != new_dlg_attr->refcyc_per_line_delivery_pre_l ||
                                old_dlg_attr.refcyc_per_line_delivery_pre_c != new_dlg_attr->refcyc_per_line_delivery_pre_c ||
                                old_ttu_attr.refcyc_per_req_delivery_pre_l != new_ttu_attr->refcyc_per_req_delivery_pre_l ||
                                old_ttu_attr.refcyc_per_req_delivery_pre_c != new_ttu_attr->refcyc_per_req_delivery_pre_c ||
                                old_ttu_attr.refcyc_per_req_delivery_pre_cur0 != new_ttu_attr->refcyc_per_req_delivery_pre_cur0 ||
                                old_ttu_attr.refcyc_per_req_delivery_pre_cur1 != new_ttu_attr->refcyc_per_req_delivery_pre_cur1 ||
                                old_ttu_attr.min_ttu_vblank != new_ttu_attr->min_ttu_vblank ||
                                old_ttu_attr.qos_level_flip != new_ttu_attr->qos_level_flip) {
                        old_dlg_attr.dst_y_prefetch = new_dlg_attr->dst_y_prefetch;
                        old_dlg_attr.vratio_prefetch = new_dlg_attr->vratio_prefetch;
                        old_dlg_attr.vratio_prefetch_c = new_dlg_attr->vratio_prefetch_c;
                        old_dlg_attr.dst_y_per_vm_vblank = new_dlg_attr->dst_y_per_vm_vblank;
                        old_dlg_attr.dst_y_per_row_vblank = new_dlg_attr->dst_y_per_row_vblank;
                        old_dlg_attr.dst_y_per_vm_flip = new_dlg_attr->dst_y_per_vm_flip;
                        old_dlg_attr.dst_y_per_row_flip = new_dlg_attr->dst_y_per_row_flip;
                        old_dlg_attr.refcyc_per_meta_chunk_vblank_l = new_dlg_attr->refcyc_per_meta_chunk_vblank_l;
                        old_dlg_attr.refcyc_per_meta_chunk_vblank_c = new_dlg_attr->refcyc_per_meta_chunk_vblank_c;
                        old_dlg_attr.refcyc_per_meta_chunk_flip_l = new_dlg_attr->refcyc_per_meta_chunk_flip_l;
                        old_dlg_attr.refcyc_per_line_delivery_pre_l = new_dlg_attr->refcyc_per_line_delivery_pre_l;
                        old_dlg_attr.refcyc_per_line_delivery_pre_c = new_dlg_attr->refcyc_per_line_delivery_pre_c;
                        old_ttu_attr.refcyc_per_req_delivery_pre_l = new_ttu_attr->refcyc_per_req_delivery_pre_l;
                        old_ttu_attr.refcyc_per_req_delivery_pre_c = new_ttu_attr->refcyc_per_req_delivery_pre_c;
                        old_ttu_attr.refcyc_per_req_delivery_pre_cur0 = new_ttu_attr->refcyc_per_req_delivery_pre_cur0;
                        old_ttu_attr.refcyc_per_req_delivery_pre_cur1 = new_ttu_attr->refcyc_per_req_delivery_pre_cur1;
                        old_ttu_attr.min_ttu_vblank = new_ttu_attr->min_ttu_vblank;
                        old_ttu_attr.qos_level_flip = new_ttu_attr->qos_level_flip;
                        new_pipe->update_flags.bits.hubp_interdependent = 1;
                }
                /* Detect any other updates to ttu/rq/dlg */
                if (memcmp(&old_dlg_attr, &new_pipe->dlg_regs, sizeof(old_dlg_attr)) ||
                                memcmp(&old_ttu_attr, &new_pipe->ttu_regs, sizeof(old_ttu_attr)) ||
                                memcmp(&old_pipe->rq_regs, &new_pipe->rq_regs, sizeof(old_pipe->rq_regs)))
                        new_pipe->update_flags.bits.hubp_rq_dlg_ttu = 1;
        }
}

static void dcn20_update_dchubp_dpp(
        struct dc *dc,
        struct pipe_ctx *pipe_ctx,
        struct dc_state *context)
{
        struct dce_hwseq *hws = dc->hwseq;
        struct hubp *hubp = pipe_ctx->plane_res.hubp;
        struct dpp *dpp = pipe_ctx->plane_res.dpp;
        struct dc_plane_state *plane_state = pipe_ctx->plane_state;
        bool viewport_changed = false;

        if (pipe_ctx->update_flags.bits.dppclk)
                dpp->funcs->dpp_dppclk_control(dpp, false, true);

        /* TODO: Need input parameter to tell current DCHUB pipe tie to which OTG
         * VTG is within DCHUBBUB which is commond block share by each pipe HUBP.
         * VTG is 1:1 mapping with OTG. Each pipe HUBP will select which VTG
         */
        if (pipe_ctx->update_flags.bits.hubp_rq_dlg_ttu) {
                hubp->funcs->hubp_vtg_sel(hubp, pipe_ctx->stream_res.tg->inst);

                hubp->funcs->hubp_setup(
                        hubp,
                        &pipe_ctx->dlg_regs,
                        &pipe_ctx->ttu_regs,
                        &pipe_ctx->rq_regs,
                        &pipe_ctx->pipe_dlg_param);

                if (hubp->funcs->set_unbounded_requesting)
                        hubp->funcs->set_unbounded_requesting(hubp, pipe_ctx->unbounded_req);
        }
        if (pipe_ctx->update_flags.bits.hubp_interdependent)
                hubp->funcs->hubp_setup_interdependent(
                        hubp,
                        &pipe_ctx->dlg_regs,
                        &pipe_ctx->ttu_regs);

        if (pipe_ctx->update_flags.bits.enable ||
                        pipe_ctx->update_flags.bits.plane_changed ||
                        plane_state->update_flags.bits.bpp_change ||
                        plane_state->update_flags.bits.input_csc_change ||
                        plane_state->update_flags.bits.color_space_change ||
                        plane_state->update_flags.bits.coeff_reduction_change) {
                struct dc_bias_and_scale bns_params = {0};

                // program the input csc
                dpp->funcs->dpp_setup(dpp,
                                plane_state->format,
                                EXPANSION_MODE_ZERO,
                                plane_state->input_csc_color_matrix,
                                plane_state->color_space,
                                NULL);

                if (dpp->funcs->dpp_program_bias_and_scale) {
                        //TODO :for CNVC set scale and bias registers if necessary
                        build_prescale_params(&bns_params, plane_state);
                        dpp->funcs->dpp_program_bias_and_scale(dpp, &bns_params);
                }
        }

        if (pipe_ctx->update_flags.bits.mpcc
                        || pipe_ctx->update_flags.bits.plane_changed
                        || plane_state->update_flags.bits.global_alpha_change
                        || plane_state->update_flags.bits.per_pixel_alpha_change) {
                // MPCC inst is equal to pipe index in practice
                int mpcc_inst = hubp->inst;
                int opp_inst;
                int opp_count = dc->res_pool->pipe_count;

                for (opp_inst = 0; opp_inst < opp_count; opp_inst++) {
                        if (dc->res_pool->opps[opp_inst]->mpcc_disconnect_pending[mpcc_inst]) {
                                dc->res_pool->mpc->funcs->wait_for_idle(dc->res_pool->mpc, mpcc_inst);
                                dc->res_pool->opps[opp_inst]->mpcc_disconnect_pending[mpcc_inst] = false;
                                break;
                        }
                }
                hws->funcs.update_mpcc(dc, pipe_ctx);
        }

        if (pipe_ctx->update_flags.bits.scaler ||
                        plane_state->update_flags.bits.scaling_change ||
                        plane_state->update_flags.bits.position_change ||
                        plane_state->update_flags.bits.per_pixel_alpha_change ||
                        pipe_ctx->stream->update_flags.bits.scaling) {
                pipe_ctx->plane_res.scl_data.lb_params.alpha_en = pipe_ctx->plane_state->per_pixel_alpha;
                ASSERT(pipe_ctx->plane_res.scl_data.lb_params.depth == LB_PIXEL_DEPTH_36BPP);
                /* scaler configuration */
                pipe_ctx->plane_res.dpp->funcs->dpp_set_scaler(
                                pipe_ctx->plane_res.dpp, &pipe_ctx->plane_res.scl_data);
        }

        if (pipe_ctx->update_flags.bits.viewport ||
                        (context == dc->current_state && plane_state->update_flags.bits.position_change) ||
                        (context == dc->current_state && plane_state->update_flags.bits.scaling_change) ||
                        (context == dc->current_state && pipe_ctx->stream->update_flags.bits.scaling)) {

                hubp->funcs->mem_program_viewport(
                        hubp,
                        &pipe_ctx->plane_res.scl_data.viewport,
                        &pipe_ctx->plane_res.scl_data.viewport_c);
                viewport_changed = true;
        }

        /* Any updates are handled in dc interface, just need to apply existing for plane enable */
        if ((pipe_ctx->update_flags.bits.enable || pipe_ctx->update_flags.bits.opp_changed ||
                        pipe_ctx->update_flags.bits.scaler || viewport_changed == true) &&
                        pipe_ctx->stream->cursor_attributes.address.quad_part != 0) {
                dc->hwss.set_cursor_position(pipe_ctx);
                dc->hwss.set_cursor_attribute(pipe_ctx);

                if (dc->hwss.set_cursor_sdr_white_level)
                        dc->hwss.set_cursor_sdr_white_level(pipe_ctx);
        }

        /* Any updates are handled in dc interface, just need
         * to apply existing for plane enable / opp change */
        if (pipe_ctx->update_flags.bits.enable || pipe_ctx->update_flags.bits.opp_changed
                        || pipe_ctx->stream->update_flags.bits.gamut_remap
                        || pipe_ctx->stream->update_flags.bits.out_csc) {
                /* dpp/cm gamut remap*/
                dc->hwss.program_gamut_remap(pipe_ctx);

                /*call the dcn2 method which uses mpc csc*/
                dc->hwss.program_output_csc(dc,
                                pipe_ctx,
                                pipe_ctx->stream->output_color_space,
                                pipe_ctx->stream->csc_color_matrix.matrix,
                                hubp->opp_id);
        }

        if (pipe_ctx->update_flags.bits.enable ||
                        pipe_ctx->update_flags.bits.plane_changed ||
                        pipe_ctx->update_flags.bits.opp_changed ||
                        plane_state->update_flags.bits.pixel_format_change ||
                        plane_state->update_flags.bits.horizontal_mirror_change ||
                        plane_state->update_flags.bits.rotation_change ||
                        plane_state->update_flags.bits.swizzle_change ||
                        plane_state->update_flags.bits.dcc_change ||
                        plane_state->update_flags.bits.bpp_change ||
                        plane_state->update_flags.bits.scaling_change ||
                        plane_state->update_flags.bits.plane_size_change) {
                struct plane_size size = plane_state->plane_size;

                size.surface_size = pipe_ctx->plane_res.scl_data.viewport;
                hubp->funcs->hubp_program_surface_config(
                        hubp,
                        plane_state->format,
                        &plane_state->tiling_info,
                        &size,
                        plane_state->rotation,
                        &plane_state->dcc,
                        plane_state->horizontal_mirror,
                        0);
                hubp->power_gated = false;
        }

        if (pipe_ctx->update_flags.bits.enable ||
                pipe_ctx->update_flags.bits.plane_changed ||
                plane_state->update_flags.bits.addr_update)
                hws->funcs.update_plane_addr(dc, pipe_ctx);



        if (pipe_ctx->update_flags.bits.enable)
                hubp->funcs->set_blank(hubp, false);
}


static void dcn20_program_pipe(
                struct dc *dc,
                struct pipe_ctx *pipe_ctx,
                struct dc_state *context)
{
        struct dce_hwseq *hws = dc->hwseq;
        /* Only need to unblank on top pipe */
        if ((pipe_ctx->update_flags.bits.enable || pipe_ctx->stream->update_flags.bits.abm_level)
                        && !pipe_ctx->top_pipe && !pipe_ctx->prev_odm_pipe)
                hws->funcs.blank_pixel_data(dc, pipe_ctx, !pipe_ctx->plane_state->visible);

        /* Only update TG on top pipe */
        if (pipe_ctx->update_flags.bits.global_sync && !pipe_ctx->top_pipe
                        && !pipe_ctx->prev_odm_pipe) {

                pipe_ctx->stream_res.tg->funcs->program_global_sync(
                                pipe_ctx->stream_res.tg,
                                pipe_ctx->pipe_dlg_param.vready_offset,
                                pipe_ctx->pipe_dlg_param.vstartup_start,
                                pipe_ctx->pipe_dlg_param.vupdate_offset,
                                pipe_ctx->pipe_dlg_param.vupdate_width);

                pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg, CRTC_STATE_VBLANK);
                pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg, CRTC_STATE_VACTIVE);

                pipe_ctx->stream_res.tg->funcs->set_vtg_params(
                                pipe_ctx->stream_res.tg, &pipe_ctx->stream->timing, true);

                if (hws->funcs.setup_vupdate_interrupt)
                        hws->funcs.setup_vupdate_interrupt(dc, pipe_ctx);
        }

        if (pipe_ctx->update_flags.bits.odm)
                hws->funcs.update_odm(dc, context, pipe_ctx);

        if (pipe_ctx->update_flags.bits.enable) {
                dcn20_enable_plane(dc, pipe_ctx, context);
                if (dc->res_pool->hubbub->funcs->force_wm_propagate_to_pipes)
                        dc->res_pool->hubbub->funcs->force_wm_propagate_to_pipes(dc->res_pool->hubbub);
        }

        if (dc->res_pool->hubbub->funcs->program_det_size && pipe_ctx->update_flags.bits.det_size)
                dc->res_pool->hubbub->funcs->program_det_size(
                        dc->res_pool->hubbub, pipe_ctx->plane_res.hubp->inst, pipe_ctx->det_buffer_size_kb);

        if (pipe_ctx->update_flags.raw || pipe_ctx->plane_state->update_flags.raw || pipe_ctx->stream->update_flags.raw)
                dcn20_update_dchubp_dpp(dc, pipe_ctx, context);

        if (pipe_ctx->update_flags.bits.enable
                        || pipe_ctx->plane_state->update_flags.bits.hdr_mult)
                hws->funcs.set_hdr_multiplier(pipe_ctx);

        if (pipe_ctx->update_flags.bits.enable ||
                        pipe_ctx->plane_state->update_flags.bits.in_transfer_func_change ||
                        pipe_ctx->plane_state->update_flags.bits.gamma_change)
                hws->funcs.set_input_transfer_func(dc, pipe_ctx, pipe_ctx->plane_state);

        /* dcn10_translate_regamma_to_hw_format takes 750us to finish
         * only do gamma programming for powering on, internal memcmp to avoid
         * updating on slave planes
         */
        if (pipe_ctx->update_flags.bits.enable || pipe_ctx->stream->update_flags.bits.out_tf)
                hws->funcs.set_output_transfer_func(dc, pipe_ctx, pipe_ctx->stream);

        /* If the pipe has been enabled or has a different opp, we
         * should reprogram the fmt. This deals with cases where
         * interation between mpc and odm combine on different streams
         * causes a different pipe to be chosen to odm combine with.
         */
        if (pipe_ctx->update_flags.bits.enable
            || pipe_ctx->update_flags.bits.opp_changed) {

                pipe_ctx->stream_res.opp->funcs->opp_set_dyn_expansion(
                        pipe_ctx->stream_res.opp,
                        COLOR_SPACE_YCBCR601,
                        pipe_ctx->stream->timing.display_color_depth,
                        pipe_ctx->stream->signal);

                pipe_ctx->stream_res.opp->funcs->opp_program_fmt(
                        pipe_ctx->stream_res.opp,
                        &pipe_ctx->stream->bit_depth_params,
                        &pipe_ctx->stream->clamping);
        }
}

void dcn20_program_front_end_for_ctx(
                struct dc *dc,
                struct dc_state *context)
{
        int i;
        struct dce_hwseq *hws = dc->hwseq;
        DC_LOGGER_INIT(dc->ctx->logger);

        /* Carry over GSL groups in case the context is changing. */
       for (i = 0; i < dc->res_pool->pipe_count; i++) {
               struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
               struct pipe_ctx *old_pipe_ctx =
                       &dc->current_state->res_ctx.pipe_ctx[i];

               if (pipe_ctx->stream == old_pipe_ctx->stream)
                       pipe_ctx->stream_res.gsl_group =
                               old_pipe_ctx->stream_res.gsl_group;
       }

        if (dc->hwss.program_triplebuffer != NULL && dc->debug.enable_tri_buf) {
                for (i = 0; i < dc->res_pool->pipe_count; i++) {
                        struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];

                        if (!pipe_ctx->top_pipe && !pipe_ctx->prev_odm_pipe && pipe_ctx->plane_state) {
                                ASSERT(!pipe_ctx->plane_state->triplebuffer_flips);
                                /*turn off triple buffer for full update*/
                                dc->hwss.program_triplebuffer(
                                                dc, pipe_ctx, pipe_ctx->plane_state->triplebuffer_flips);
                        }
                }
        }

        /* Set pipe update flags and lock pipes */
        for (i = 0; i < dc->res_pool->pipe_count; i++)
                dcn20_detect_pipe_changes(&dc->current_state->res_ctx.pipe_ctx[i],
                                &context->res_ctx.pipe_ctx[i]);

        /* OTG blank before disabling all front ends */
        for (i = 0; i < dc->res_pool->pipe_count; i++)
                if (context->res_ctx.pipe_ctx[i].update_flags.bits.disable
                                && !context->res_ctx.pipe_ctx[i].top_pipe
                                && !context->res_ctx.pipe_ctx[i].prev_odm_pipe
                                && context->res_ctx.pipe_ctx[i].stream)
                        hws->funcs.blank_pixel_data(dc, &context->res_ctx.pipe_ctx[i], true);


        /* Disconnect mpcc */
        for (i = 0; i < dc->res_pool->pipe_count; i++)
                if (context->res_ctx.pipe_ctx[i].update_flags.bits.disable
                                || context->res_ctx.pipe_ctx[i].update_flags.bits.opp_changed) {
                        struct hubbub *hubbub = dc->res_pool->hubbub;

                        if (hubbub->funcs->program_det_size && context->res_ctx.pipe_ctx[i].update_flags.bits.disable)
                                hubbub->funcs->program_det_size(hubbub, dc->current_state->res_ctx.pipe_ctx[i].plane_res.hubp->inst, 0);
                        hws->funcs.plane_atomic_disconnect(dc, &dc->current_state->res_ctx.pipe_ctx[i]);
                        DC_LOG_DC("Reset mpcc for pipe %d\n", dc->current_state->res_ctx.pipe_ctx[i].pipe_idx);
                }

        /*
         * Program all updated pipes, order matters for mpcc setup. Start with
         * top pipe and program all pipes that follow in order
         */
        for (i = 0; i < dc->res_pool->pipe_count; i++) {
                struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];

                if (pipe->plane_state && !pipe->top_pipe) {
                        while (pipe) {
                                if (hws->funcs.program_pipe)
                                        hws->funcs.program_pipe(dc, pipe, context);
                                else
                                        dcn20_program_pipe(dc, pipe, context);

                                pipe = pipe->bottom_pipe;
                        }
                        /* Program secondary blending tree and writeback pipes */
                        pipe = &context->res_ctx.pipe_ctx[i];
                        if (!pipe->prev_odm_pipe && pipe->stream->num_wb_info > 0
                                        && (pipe->update_flags.raw || pipe->plane_state->update_flags.raw || pipe->stream->update_flags.raw)
                                        && hws->funcs.program_all_writeback_pipes_in_tree)
                                hws->funcs.program_all_writeback_pipes_in_tree(dc, pipe->stream, context);
                }
        }
}

void dcn20_post_unlock_program_front_end(
                struct dc *dc,
                struct dc_state *context)
{
        int i;
        const unsigned int TIMEOUT_FOR_PIPE_ENABLE_MS = 100;
        struct dce_hwseq *hwseq = dc->hwseq;

        DC_LOGGER_INIT(dc->ctx->logger);

        for (i = 0; i < dc->res_pool->pipe_count; i++)
                if (context->res_ctx.pipe_ctx[i].update_flags.bits.disable)
                        dc->hwss.disable_plane(dc, &dc->current_state->res_ctx.pipe_ctx[i]);

        /*
         * If we are enabling a pipe, we need to wait for pending clear as this is a critical
         * part of the enable operation otherwise, DM may request an immediate flip which
         * will cause HW to perform an "immediate enable" (as opposed to "vsync enable") which
         * is unsupported on DCN.
         */
        for (i = 0; i < dc->res_pool->pipe_count; i++) {
                struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];

                if (pipe->plane_state && !pipe->top_pipe && pipe->update_flags.bits.enable) {
                        struct hubp *hubp = pipe->plane_res.hubp;
                        int j = 0;

                        for (j = 0; j < TIMEOUT_FOR_PIPE_ENABLE_MS*1000
                                        && hubp->funcs->hubp_is_flip_pending(hubp); j++)
                                mdelay(1);
                }
        }

        for (i = 0; i < dc->res_pool->pipe_count; i++) {
                struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
                struct pipe_ctx *mpcc_pipe;

                if (pipe->vtp_locked) {
                        dc->hwseq->funcs.wait_for_blank_complete(pipe->stream_res.opp);
                        pipe->plane_res.hubp->funcs->set_blank(pipe->plane_res.hubp, true);
                        pipe->vtp_locked = false;

                        for (mpcc_pipe = pipe->bottom_pipe; mpcc_pipe; mpcc_pipe = mpcc_pipe->bottom_pipe)
                                mpcc_pipe->plane_res.hubp->funcs->set_blank(mpcc_pipe->plane_res.hubp, true);

                        for (i = 0; i < dc->res_pool->pipe_count; i++)
                                if (context->res_ctx.pipe_ctx[i].update_flags.bits.disable)
                                        dc->hwss.disable_plane(dc, &dc->current_state->res_ctx.pipe_ctx[i]);
                }
        }
        /* WA to apply WM setting*/
        if (hwseq->wa.DEGVIDCN21)
                dc->res_pool->hubbub->funcs->apply_DEDCN21_147_wa(dc->res_pool->hubbub);


        /* WA for stutter underflow during MPO transitions when adding 2nd plane */
        if (hwseq->wa.disallow_self_refresh_during_multi_plane_transition) {

                if (dc->current_state->stream_status[0].plane_count == 1 &&
                                context->stream_status[0].plane_count > 1) {

                        struct timing_generator *tg = dc->res_pool->timing_generators[0];

                        dc->res_pool->hubbub->funcs->allow_self_refresh_control(dc->res_pool->hubbub, false);

                        hwseq->wa_state.disallow_self_refresh_during_multi_plane_transition_applied = true;
                        hwseq->wa_state.disallow_self_refresh_during_multi_plane_transition_applied_on_frame = tg->funcs->get_frame_count(tg);
                }
        }
}

void dcn20_prepare_bandwidth(
                struct dc *dc,
                struct dc_state *context)
{
        struct hubbub *hubbub = dc->res_pool->hubbub;

        dc->clk_mgr->funcs->update_clocks(
                        dc->clk_mgr,
                        context,
                        false);

        /* program dchubbub watermarks */
        dc->wm_optimized_required = hubbub->funcs->program_watermarks(hubbub,
                                        &context->bw_ctx.bw.dcn.watermarks,
                                        dc->res_pool->ref_clocks.dchub_ref_clock_inKhz / 1000,
                                        false);
        /* decrease compbuf size */
        if (hubbub->funcs->program_compbuf_size)
                hubbub->funcs->program_compbuf_size(hubbub, context->bw_ctx.bw.dcn.compbuf_size_kb, false);
}

void dcn20_optimize_bandwidth(
                struct dc *dc,
                struct dc_state *context)
{
        struct hubbub *hubbub = dc->res_pool->hubbub;

        /* program dchubbub watermarks */
        hubbub->funcs->program_watermarks(hubbub,
                                        &context->bw_ctx.bw.dcn.watermarks,
                                        dc->res_pool->ref_clocks.dchub_ref_clock_inKhz / 1000,
                                        true);

        dc->clk_mgr->funcs->update_clocks(
                        dc->clk_mgr,
                        context,
                        true);
        /* increase compbuf size */
        if (hubbub->funcs->program_compbuf_size)
                hubbub->funcs->program_compbuf_size(hubbub, context->bw_ctx.bw.dcn.compbuf_size_kb, true);
}

bool dcn20_update_bandwidth(
                struct dc *dc,
                struct dc_state *context)
{
        int i;
        struct dce_hwseq *hws = dc->hwseq;

        /* recalculate DML parameters */
        if (!dc->res_pool->funcs->validate_bandwidth(dc, context, false))
                return false;

        /* apply updated bandwidth parameters */
        dc->hwss.prepare_bandwidth(dc, context);

        /* update hubp configs for all pipes */
        for (i = 0; i < dc->res_pool->pipe_count; i++) {
                struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];

                if (pipe_ctx->plane_state == NULL)
                        continue;

                if (pipe_ctx->top_pipe == NULL) {
                        bool blank = !is_pipe_tree_visible(pipe_ctx);

                        pipe_ctx->stream_res.tg->funcs->program_global_sync(
                                        pipe_ctx->stream_res.tg,
                                        pipe_ctx->pipe_dlg_param.vready_offset,
                                        pipe_ctx->pipe_dlg_param.vstartup_start,
                                        pipe_ctx->pipe_dlg_param.vupdate_offset,
                                        pipe_ctx->pipe_dlg_param.vupdate_width);

                        pipe_ctx->stream_res.tg->funcs->set_vtg_params(
                                        pipe_ctx->stream_res.tg, &pipe_ctx->stream->timing, false);

                        if (pipe_ctx->prev_odm_pipe == NULL)
                                hws->funcs.blank_pixel_data(dc, pipe_ctx, blank);

                        if (hws->funcs.setup_vupdate_interrupt)
                                hws->funcs.setup_vupdate_interrupt(dc, pipe_ctx);
                }

                pipe_ctx->plane_res.hubp->funcs->hubp_setup(
                                pipe_ctx->plane_res.hubp,
                                        &pipe_ctx->dlg_regs,
                                        &pipe_ctx->ttu_regs,
                                        &pipe_ctx->rq_regs,
                                        &pipe_ctx->pipe_dlg_param);
        }

        return true;
}

void dcn20_enable_writeback(
                struct dc *dc,
                struct dc_writeback_info *wb_info,
                struct dc_state *context)
{
        struct dwbc *dwb;
        struct mcif_wb *mcif_wb;
        struct timing_generator *optc;

        ASSERT(wb_info->dwb_pipe_inst < MAX_DWB_PIPES);
        ASSERT(wb_info->wb_enabled);
        dwb = dc->res_pool->dwbc[wb_info->dwb_pipe_inst];
        mcif_wb = dc->res_pool->mcif_wb[wb_info->dwb_pipe_inst];

        /* set the OPTC source mux */
        optc = dc->res_pool->timing_generators[dwb->otg_inst];
        optc->funcs->set_dwb_source(optc, wb_info->dwb_pipe_inst);
        /* set MCIF_WB buffer and arbitration configuration */
        mcif_wb->funcs->config_mcif_buf(mcif_wb, &wb_info->mcif_buf_params, wb_info->dwb_params.dest_height);
        mcif_wb->funcs->config_mcif_arb(mcif_wb, &context->bw_ctx.bw.dcn.bw_writeback.mcif_wb_arb[wb_info->dwb_pipe_inst]);
        /* Enable MCIF_WB */
        mcif_wb->funcs->enable_mcif(mcif_wb);
        /* Enable DWB */
        dwb->funcs->enable(dwb, &wb_info->dwb_params);
        /* TODO: add sequence to enable/disable warmup */
}

void dcn20_disable_writeback(
                struct dc *dc,
                unsigned int dwb_pipe_inst)
{
        struct dwbc *dwb;
        struct mcif_wb *mcif_wb;

        ASSERT(dwb_pipe_inst < MAX_DWB_PIPES);
        dwb = dc->res_pool->dwbc[dwb_pipe_inst];
        mcif_wb = dc->res_pool->mcif_wb[dwb_pipe_inst];

        dwb->funcs->disable(dwb);
        mcif_wb->funcs->disable_mcif(mcif_wb);
}

bool dcn20_wait_for_blank_complete(
                struct output_pixel_processor *opp)
{
        int counter;

        for (counter = 0; counter < 1000; counter++) {
                if (opp->funcs->dpg_is_blanked(opp))
                        break;

                udelay(100);
        }

        if (counter == 1000) {
                dm_error("DC: failed to blank crtc!\n");
                return false;
        }

        return true;
}

bool dcn20_dmdata_status_done(struct pipe_ctx *pipe_ctx)
{
        struct hubp *hubp = pipe_ctx->plane_res.hubp;

        if (!hubp)
                return false;
        return hubp->funcs->dmdata_status_done(hubp);
}

void dcn20_disable_stream_gating(struct dc *dc, struct pipe_ctx *pipe_ctx)
{
        struct dce_hwseq *hws = dc->hwseq;

        if (pipe_ctx->stream_res.dsc) {
                struct pipe_ctx *odm_pipe = pipe_ctx->next_odm_pipe;

                hws->funcs.dsc_pg_control(hws, pipe_ctx->stream_res.dsc->inst, true);
                while (odm_pipe) {
                        hws->funcs.dsc_pg_control(hws, odm_pipe->stream_res.dsc->inst, true);
                        odm_pipe = odm_pipe->next_odm_pipe;
                }
        }
}

void dcn20_enable_stream_gating(struct dc *dc, struct pipe_ctx *pipe_ctx)
{
        struct dce_hwseq *hws = dc->hwseq;

        if (pipe_ctx->stream_res.dsc) {
                struct pipe_ctx *odm_pipe = pipe_ctx->next_odm_pipe;

                hws->funcs.dsc_pg_control(hws, pipe_ctx->stream_res.dsc->inst, false);
                while (odm_pipe) {
                        hws->funcs.dsc_pg_control(hws, odm_pipe->stream_res.dsc->inst, false);
                        odm_pipe = odm_pipe->next_odm_pipe;
                }
        }
}