June 2024 - Linux-stable-mirror

[PATCH 26/39] drm/amd/display: Wait for double buffer update on ODM changes

by Alex Hung

From: Alvin Lee <alvin.lee2(a)amd.com> [WHAT & HOW] We must wait for ODM double buffer updates to complete before exiting the pipe update sequence or we may reduce DISPCLK and hit some transient underflow (pixel rate is reduced before the pipes have ODM enabled). Reviewed-by: Samson Tam <samson.tam(a)amd.com> Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Alvin Lee <alvin.lee2(a)amd.com> --- .../amd/display/dc/hwss/dcn20/dcn20_hwseq.c | 23 +++++++++++++++++++ .../amd/display/dc/inc/hw/timing_generator.h | 1 + .../amd/display/dc/optc/dcn10/dcn10_optc.h | 3 ++- .../amd/display/dc/optc/dcn32/dcn32_optc.c | 13 +++++++++++ .../amd/display/dc/optc/dcn32/dcn32_optc.h | 2 ++ .../amd/display/dc/optc/dcn401/dcn401_optc.c | 1 + .../amd/display/dc/optc/dcn401/dcn401_optc.h | 1 + 7 files changed, 43 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c index 4d359bb9b1ec..36797ed7ad8c 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c @@ -2227,6 +2227,29 @@ void dcn20_post_unlock_program_front_end( } } + for (i = 0; i < dc->res_pool->pipe_count; i++) { + struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; + struct pipe_ctx *old_pipe = &dc->current_state->res_ctx.pipe_ctx[i]; + + /* When going from a smaller ODM slice count to larger, we must ensure double + * buffer update completes before we return to ensure we don't reduce DISPCLK + * before we've transitioned to 2:1 or 4:1 + */ + if (resource_is_pipe_type(old_pipe, OTG_MASTER) && resource_is_pipe_type(pipe, OTG_MASTER) && + resource_get_odm_slice_count(old_pipe) < resource_get_odm_slice_count(pipe) && + dc_state_get_pipe_subvp_type(context, pipe) != SUBVP_PHANTOM) { + int j = 0; + struct timing_generator *tg = pipe->stream_res.tg; + + + if (tg->funcs->get_double_buffer_pending) { + for (j = 0; j < TIMEOUT_FOR_PIPE_ENABLE_US / polling_interval_us + && tg->funcs->get_double_buffer_pending(tg); j++) + udelay(polling_interval_us); + } + } + } + if (dc->res_pool->hubbub->funcs->force_pstate_change_control) dc->res_pool->hubbub->funcs->force_pstate_change_control( dc->res_pool->hubbub, false, false); diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h b/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h index cd4826f329c1..0f453452234c 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h @@ -340,6 +340,7 @@ struct timing_generator_funcs { void (*wait_drr_doublebuffer_pending_clear)(struct timing_generator *tg); void (*set_long_vtotal)(struct timing_generator *optc, const struct long_vtotal_params *params); void (*wait_odm_doublebuffer_pending_clear)(struct timing_generator *tg); + bool (*get_double_buffer_pending)(struct timing_generator *tg); }; #endif diff --git a/drivers/gpu/drm/amd/display/dc/optc/dcn10/dcn10_optc.h b/drivers/gpu/drm/amd/display/dc/optc/dcn10/dcn10_optc.h index e3e70c1db040..369a13244e5e 100644 --- a/drivers/gpu/drm/amd/display/dc/optc/dcn10/dcn10_optc.h +++ b/drivers/gpu/drm/amd/display/dc/optc/dcn10/dcn10_optc.h @@ -562,7 +562,8 @@ struct dcn_optc_registers { type OTG_CRC_DATA_FORMAT;\ type OTG_V_TOTAL_LAST_USED_BY_DRR;\ type OTG_DRR_TIMING_DBUF_UPDATE_PENDING;\ - type OTG_H_TIMING_DIV_MODE_DB_UPDATE_PENDING; + type OTG_H_TIMING_DIV_MODE_DB_UPDATE_PENDING;\ + type OPTC_DOUBLE_BUFFER_PENDING;\ #define TG_REG_FIELD_LIST_DCN3_2(type) \ type OTG_H_TIMING_DIV_MODE_MANUAL; diff --git a/drivers/gpu/drm/amd/display/dc/optc/dcn32/dcn32_optc.c b/drivers/gpu/drm/amd/display/dc/optc/dcn32/dcn32_optc.c index 6c837409df42..00094f0e8470 100644 --- a/drivers/gpu/drm/amd/display/dc/optc/dcn32/dcn32_optc.c +++ b/drivers/gpu/drm/amd/display/dc/optc/dcn32/dcn32_optc.c @@ -297,6 +297,18 @@ static void optc32_set_drr( optc32_setup_manual_trigger(optc); } +bool optc32_get_double_buffer_pending(struct timing_generator *optc) +{ + struct optc *optc1 = DCN10TG_FROM_TG(optc); + uint32_t update_pending = 0; + + REG_GET(OPTC_INPUT_GLOBAL_CONTROL, + OPTC_DOUBLE_BUFFER_PENDING, + &update_pending); + + return (update_pending == 1); +} + static struct timing_generator_funcs dcn32_tg_funcs = { .validate_timing = optc1_validate_timing, .program_timing = optc1_program_timing, @@ -361,6 +373,7 @@ static struct timing_generator_funcs dcn32_tg_funcs = { .setup_manual_trigger = optc2_setup_manual_trigger, .get_hw_timing = optc1_get_hw_timing, .is_two_pixels_per_container = optc1_is_two_pixels_per_container, + .get_double_buffer_pending = optc32_get_double_buffer_pending, }; void dcn32_timing_generator_init(struct optc *optc1) diff --git a/drivers/gpu/drm/amd/display/dc/optc/dcn32/dcn32_optc.h b/drivers/gpu/drm/amd/display/dc/optc/dcn32/dcn32_optc.h index 0c2c14695561..665d7c52f67c 100644 --- a/drivers/gpu/drm/amd/display/dc/optc/dcn32/dcn32_optc.h +++ b/drivers/gpu/drm/amd/display/dc/optc/dcn32/dcn32_optc.h @@ -116,6 +116,7 @@ SF(ODM0_OPTC_INPUT_CLOCK_CONTROL, OPTC_INPUT_CLK_GATE_DIS, mask_sh),\ SF(ODM0_OPTC_INPUT_GLOBAL_CONTROL, OPTC_UNDERFLOW_OCCURRED_STATUS, mask_sh),\ SF(ODM0_OPTC_INPUT_GLOBAL_CONTROL, OPTC_UNDERFLOW_CLEAR, mask_sh),\ + SF(ODM0_OPTC_INPUT_GLOBAL_CONTROL, OPTC_DOUBLE_BUFFER_PENDING, mask_sh),\ SF(VTG0_CONTROL, VTG0_ENABLE, mask_sh),\ SF(VTG0_CONTROL, VTG0_FP2, mask_sh),\ SF(VTG0_CONTROL, VTG0_VCOUNT_INIT, mask_sh),\ @@ -184,5 +185,6 @@ void optc32_get_odm_combine_segments(struct timing_generator *tg, int *odm_combi void optc32_set_odm_bypass(struct timing_generator *optc, const struct dc_crtc_timing *dc_crtc_timing); void optc32_wait_odm_doublebuffer_pending_clear(struct timing_generator *tg); +bool optc32_get_double_buffer_pending(struct timing_generator *optc); #endif /* __DC_OPTC_DCN32_H__ */ diff --git a/drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.c b/drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.c index fd1c8b45c40e..9f5c2efa7560 100644 --- a/drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.c +++ b/drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.c @@ -459,6 +459,7 @@ static struct timing_generator_funcs dcn401_tg_funcs = { .setup_manual_trigger = optc2_setup_manual_trigger, .get_hw_timing = optc1_get_hw_timing, .is_two_pixels_per_container = optc1_is_two_pixels_per_container, + .get_double_buffer_pending = optc32_get_double_buffer_pending, }; void dcn401_timing_generator_init(struct optc *optc1) diff --git a/drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.h b/drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.h index 1671fdd5061c..3114ecef332a 100644 --- a/drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.h +++ b/drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.h @@ -94,6 +94,7 @@ SF(ODM0_OPTC_INPUT_CLOCK_CONTROL, OPTC_INPUT_CLK_ON, mask_sh),\ SF(ODM0_OPTC_INPUT_CLOCK_CONTROL, OPTC_INPUT_CLK_GATE_DIS, mask_sh),\ SF(ODM0_OPTC_INPUT_GLOBAL_CONTROL, OPTC_UNDERFLOW_OCCURRED_STATUS, mask_sh),\ + SF(ODM0_OPTC_INPUT_GLOBAL_CONTROL, OPTC_DOUBLE_BUFFER_PENDING, mask_sh),\ SF(ODM0_OPTC_INPUT_GLOBAL_CONTROL, OPTC_UNDERFLOW_CLEAR, mask_sh),\ SF(VTG0_CONTROL, VTG0_ENABLE, mask_sh),\ SF(VTG0_CONTROL, VTG0_FP2, mask_sh),\ -- 2.34.1

4 months, 1 week

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[PATCH 25/39] drm/amd/display: Reset DSC memory status

by Alex Hung

From: Duncan Ma <duncan.ma(a)amd.com> [WHY] When system exits idle state followed by enabling the display, DSC memory may still be forced in a deep sleep or shutdown state. Intermittent DSC corruption is seen when display is visible. [HOW] When DSC is enabled, reset dsc memory to force and disable status. Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas(a)amd.com> Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Duncan Ma <duncan.ma(a)amd.com> --- .../drm/amd/display/dc/dsc/dcn20/dcn20_dsc.c | 24 +++----- .../drm/amd/display/dc/dsc/dcn20/dcn20_dsc.h | 9 +++ .../drm/amd/display/dc/dsc/dcn35/dcn35_dsc.c | 58 ++++++++++++++++++- 3 files changed, 71 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dcn20/dcn20_dsc.c b/drivers/gpu/drm/amd/display/dc/dsc/dcn20/dcn20_dsc.c index d6b2334d5364..75128fd34306 100644 --- a/drivers/gpu/drm/amd/display/dc/dsc/dcn20/dcn20_dsc.c +++ b/drivers/gpu/drm/amd/display/dc/dsc/dcn20/dcn20_dsc.c @@ -32,16 +32,6 @@ static void dsc_write_to_registers(struct display_stream_compressor *dsc, const struct dsc_reg_values *reg_vals); -/* Object I/F functions */ -static void dsc2_read_state(struct display_stream_compressor *dsc, struct dcn_dsc_state *s); -static bool dsc2_validate_stream(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg); -static void dsc2_set_config(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg, - struct dsc_optc_config *dsc_optc_cfg); -static void dsc2_enable(struct display_stream_compressor *dsc, int opp_pipe); -static void dsc2_disable(struct display_stream_compressor *dsc); -static void dsc2_disconnect(struct display_stream_compressor *dsc); -static void dsc2_wait_disconnect_pending_clear(struct display_stream_compressor *dsc); - static const struct dsc_funcs dcn20_dsc_funcs = { .dsc_get_enc_caps = dsc2_get_enc_caps, .dsc_read_state = dsc2_read_state, @@ -156,7 +146,7 @@ void dsc2_get_enc_caps(struct dsc_enc_caps *dsc_enc_caps, int pixel_clock_100Hz) /* this function read dsc related register fields to be logged later in dcn10_log_hw_state * into a dcn_dsc_state struct. */ -static void dsc2_read_state(struct display_stream_compressor *dsc, struct dcn_dsc_state *s) +void dsc2_read_state(struct display_stream_compressor *dsc, struct dcn_dsc_state *s) { struct dcn20_dsc *dsc20 = TO_DCN20_DSC(dsc); @@ -173,7 +163,7 @@ static void dsc2_read_state(struct display_stream_compressor *dsc, struct dcn_ds } -static bool dsc2_validate_stream(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg) +bool dsc2_validate_stream(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg) { struct dsc_optc_config dsc_optc_cfg; struct dcn20_dsc *dsc20 = TO_DCN20_DSC(dsc); @@ -196,7 +186,7 @@ void dsc_config_log(struct display_stream_compressor *dsc, const struct dsc_conf DC_LOG_DSC("\tcolor_depth %d", config->color_depth); } -static void dsc2_set_config(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg, +void dsc2_set_config(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg, struct dsc_optc_config *dsc_optc_cfg) { bool is_config_ok; @@ -233,7 +223,7 @@ bool dsc2_get_packed_pps(struct display_stream_compressor *dsc, const struct dsc } -static void dsc2_enable(struct display_stream_compressor *dsc, int opp_pipe) +void dsc2_enable(struct display_stream_compressor *dsc, int opp_pipe) { struct dcn20_dsc *dsc20 = TO_DCN20_DSC(dsc); int dsc_clock_en; @@ -258,7 +248,7 @@ static void dsc2_enable(struct display_stream_compressor *dsc, int opp_pipe) } -static void dsc2_disable(struct display_stream_compressor *dsc) +void dsc2_disable(struct display_stream_compressor *dsc) { struct dcn20_dsc *dsc20 = TO_DCN20_DSC(dsc); int dsc_clock_en; @@ -277,14 +267,14 @@ static void dsc2_disable(struct display_stream_compressor *dsc) DSC_CLOCK_EN, 0); } -static void dsc2_wait_disconnect_pending_clear(struct display_stream_compressor *dsc) +void dsc2_wait_disconnect_pending_clear(struct display_stream_compressor *dsc) { struct dcn20_dsc *dsc20 = TO_DCN20_DSC(dsc); REG_WAIT(DSCRM_DSC_FORWARD_CONFIG, DSCRM_DSC_DOUBLE_BUFFER_REG_UPDATE_PENDING, 0, 2, 50000); } -static void dsc2_disconnect(struct display_stream_compressor *dsc) +void dsc2_disconnect(struct display_stream_compressor *dsc) { struct dcn20_dsc *dsc20 = TO_DCN20_DSC(dsc); diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dcn20/dcn20_dsc.h b/drivers/gpu/drm/amd/display/dc/dsc/dcn20/dcn20_dsc.h index a136b26c914c..a23308a785bc 100644 --- a/drivers/gpu/drm/amd/display/dc/dsc/dcn20/dcn20_dsc.h +++ b/drivers/gpu/drm/amd/display/dc/dsc/dcn20/dcn20_dsc.h @@ -597,5 +597,14 @@ bool dsc2_get_packed_pps(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg, uint8_t *dsc_packed_pps); +void dsc2_read_state(struct display_stream_compressor *dsc, struct dcn_dsc_state *s); +bool dsc2_validate_stream(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg); +void dsc2_set_config(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg, + struct dsc_optc_config *dsc_optc_cfg); +void dsc2_enable(struct display_stream_compressor *dsc, int opp_pipe); +void dsc2_disable(struct display_stream_compressor *dsc); +void dsc2_disconnect(struct display_stream_compressor *dsc); +void dsc2_wait_disconnect_pending_clear(struct display_stream_compressor *dsc); + #endif diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dcn35/dcn35_dsc.c b/drivers/gpu/drm/amd/display/dc/dsc/dcn35/dcn35_dsc.c index 71d2dff9986d..6f4f5a3c4861 100644 --- a/drivers/gpu/drm/amd/display/dc/dsc/dcn35/dcn35_dsc.c +++ b/drivers/gpu/drm/amd/display/dc/dsc/dcn35/dcn35_dsc.c @@ -27,6 +27,20 @@ #include "dcn35_dsc.h" #include "reg_helper.h" +static void dsc35_enable(struct display_stream_compressor *dsc, int opp_pipe); + +static const struct dsc_funcs dcn35_dsc_funcs = { + .dsc_get_enc_caps = dsc2_get_enc_caps, + .dsc_read_state = dsc2_read_state, + .dsc_validate_stream = dsc2_validate_stream, + .dsc_set_config = dsc2_set_config, + .dsc_get_packed_pps = dsc2_get_packed_pps, + .dsc_enable = dsc35_enable, + .dsc_disable = dsc2_disable, + .dsc_disconnect = dsc2_disconnect, + .dsc_wait_disconnect_pending_clear = dsc2_wait_disconnect_pending_clear, +}; + /* Macro definitios for REG_SET macros*/ #define CTX \ dsc20->base.ctx @@ -49,9 +63,47 @@ void dsc35_construct(struct dcn20_dsc *dsc, const struct dcn35_dsc_shift *dsc_shift, const struct dcn35_dsc_mask *dsc_mask) { - dsc2_construct(dsc, ctx, inst, dsc_regs, - (const struct dcn20_dsc_shift *)(dsc_shift), - (const struct dcn20_dsc_mask *)(dsc_mask)); + dsc->base.ctx = ctx; + dsc->base.inst = inst; + dsc->base.funcs = &dcn35_dsc_funcs; + + dsc->dsc_regs = dsc_regs; + dsc->dsc_shift = (const struct dcn20_dsc_shift *)(dsc_shift); + dsc->dsc_mask = (const struct dcn20_dsc_mask *)(dsc_mask); + + dsc->max_image_width = 5184; +} + +static void dsc35_enable(struct display_stream_compressor *dsc, int opp_pipe) +{ + struct dcn20_dsc *dsc20 = TO_DCN20_DSC(dsc); + int dsc_clock_en; + int dsc_fw_config; + int enabled_opp_pipe; + + DC_LOG_DSC("enable DSC %d at opp pipe %d", dsc->inst, opp_pipe); + + // TODO: After an idle exit, the HW default values for power control + // are changed intermittently due to unknown reasons. There are cases + // when dscc memory are still in shutdown state during enablement. + // Reset power control to hw default values. + REG_UPDATE_2(DSCC_MEM_POWER_CONTROL, + DSCC_MEM_PWR_FORCE, 0, + DSCC_MEM_PWR_DIS, 0); + + REG_GET(DSC_TOP_CONTROL, DSC_CLOCK_EN, &dsc_clock_en); + REG_GET_2(DSCRM_DSC_FORWARD_CONFIG, DSCRM_DSC_FORWARD_EN, &dsc_fw_config, DSCRM_DSC_OPP_PIPE_SOURCE, &enabled_opp_pipe); + if ((dsc_clock_en || dsc_fw_config) && enabled_opp_pipe != opp_pipe) { + DC_LOG_DSC("ERROR: DSC %d at opp pipe %d already enabled!", dsc->inst, enabled_opp_pipe); + ASSERT(0); + } + + REG_UPDATE(DSC_TOP_CONTROL, + DSC_CLOCK_EN, 1); + + REG_UPDATE_2(DSCRM_DSC_FORWARD_CONFIG, + DSCRM_DSC_FORWARD_EN, 1, + DSCRM_DSC_OPP_PIPE_SOURCE, opp_pipe); } void dsc35_set_fgcg(struct dcn20_dsc *dsc20, bool enable) -- 2.34.1

4 months, 1 week

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[PATCH 24/39] drm/amd/display: Program CURSOR_DST_X_OFFSET in viewport space

by Alex Hung

From: Alvin Lee <alvin.lee2(a)amd.com> [WHAT & HOW] According to register specifications, the CURSOR_DST_X_OFFSET is relative to the start of the data viewport, not RECOUT space. In this case we must transform the cursor coordinates passed to hubp401_cursor_set_position into viewport space to program this register. This fixes an underflow issue that occurs in scaled mode with low refresh rate. Reviewed-by: Nevenko Stupar <nevenko.stupar(a)amd.com> Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Alvin Lee <alvin.lee2(a)amd.com> --- .../gpu/drm/amd/display/dc/hubp/dcn401/dcn401_hubp.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/hubp/dcn401/dcn401_hubp.c b/drivers/gpu/drm/amd/display/dc/hubp/dcn401/dcn401_hubp.c index a893160ae775..3f9ca9b40949 100644 --- a/drivers/gpu/drm/amd/display/dc/hubp/dcn401/dcn401_hubp.c +++ b/drivers/gpu/drm/amd/display/dc/hubp/dcn401/dcn401_hubp.c @@ -656,7 +656,9 @@ void hubp401_cursor_set_position( int y_pos = pos->y - param->recout.y; int rec_x_offset = x_pos - pos->x_hotspot; int rec_y_offset = y_pos - pos->y_hotspot; - uint32_t dst_x_offset; + int dst_x_offset; + int x_pos_viewport = x_pos * param->viewport.width / param->recout.width; + int x_hot_viewport = pos->x_hotspot * param->viewport.width / param->recout.width; uint32_t cur_en = pos->enable ? 1 : 0; hubp->curs_pos = *pos; @@ -668,7 +670,13 @@ void hubp401_cursor_set_position( if (hubp->curs_attr.address.quad_part == 0) return; - dst_x_offset = (rec_x_offset >= 0) ? rec_x_offset : 0; + /* Translate the x position of the cursor from rect + * space into viewport space. CURSOR_DST_X_OFFSET + * is the offset relative to viewport start position. + */ + dst_x_offset = x_pos_viewport - x_hot_viewport * + (1 + hubp->curs_attr.attribute_flags.bits.ENABLE_MAGNIFICATION); + dst_x_offset = (dst_x_offset >= 0) ? dst_x_offset : 0; dst_x_offset *= param->ref_clk_khz; dst_x_offset /= param->pixel_clk_khz; -- 2.34.1

4 months, 1 week

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[PATCH 22/39] drm/amd/display: Fix reduced resolution and refresh rate

by Alex Hung

From: Daniel Sa <daniel.sa(a)amd.com> [WHY] Some monitors are forced to a lower resolution and refresh rate after system restarts. [HOW] Some monitors may give invalid LTTPR information when queried such as indicating they have one DP lane instead of 4. If given an invalid DPCD version, skip over getting lttpr link rate and lane counts. Reviewed-by: Wenjing Liu <wenjing.liu(a)amd.com> Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Daniel Sa <daniel.sa(a)amd.com> --- .../dc/link/protocols/link_dp_capability.c | 21 ++++++++++--------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c index f1cac74dd7f7..46bb7a855bc2 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c @@ -409,9 +409,6 @@ static enum dc_link_rate get_lttpr_max_link_rate(struct dc_link *link) case LINK_RATE_HIGH3: lttpr_max_link_rate = link->dpcd_caps.lttpr_caps.max_link_rate; break; - default: - // Assume all LTTPRs support up to HBR3 to improve misbehaving sink interop - lttpr_max_link_rate = LINK_RATE_HIGH3; } if (link->dpcd_caps.lttpr_caps.supported_128b_132b_rates.bits.UHBR20) @@ -2137,15 +2134,19 @@ struct dc_link_settings dp_get_max_link_cap(struct dc_link *link) * notes: repeaters do not snoop in the DPRX Capabilities addresses (3.6.3). */ if (dp_is_lttpr_present(link)) { - if (link->dpcd_caps.lttpr_caps.max_lane_count < max_link_cap.lane_count) - max_link_cap.lane_count = link->dpcd_caps.lttpr_caps.max_lane_count; - lttpr_max_link_rate = get_lttpr_max_link_rate(link); - if (lttpr_max_link_rate < max_link_cap.link_rate) - max_link_cap.link_rate = lttpr_max_link_rate; + /* Some LTTPR devices do not report valid DPCD revisions, if so, do not take it's link cap into consideration. */ + if (link->dpcd_caps.lttpr_caps.revision.raw >= DPCD_REV_14) { + if (link->dpcd_caps.lttpr_caps.max_lane_count < max_link_cap.lane_count) + max_link_cap.lane_count = link->dpcd_caps.lttpr_caps.max_lane_count; + lttpr_max_link_rate = get_lttpr_max_link_rate(link); - if (!link->dpcd_caps.lttpr_caps.supported_128b_132b_rates.bits.UHBR13_5) - is_uhbr13_5_supported = false; + if (lttpr_max_link_rate < max_link_cap.link_rate) + max_link_cap.link_rate = lttpr_max_link_rate; + + if (!link->dpcd_caps.lttpr_caps.supported_128b_132b_rates.bits.UHBR13_5) + is_uhbr13_5_supported = false; + } DC_LOG_HW_LINK_TRAINING("%s\n Training with LTTPR, max_lane count %d max_link rate %d \n", __func__, -- 2.34.1

4 months, 1 week

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[PATCH 19/39] drm/amd/display: Call dpmm when checking mode support

by Alex Hung

From: George Shen <george.shen(a)amd.com> [WHY] In check_mode_supported, we should validate that the required clocks can be successfully mapped to DPM levels. This ensures we only apply dynamic ODM optimizations to modes that are supported without dynamic ODM optimizations to begin with. [HOW] Call dpmm to check that the display config can successfully be mapped to a DPM level. Reviewed-by: Chaitanya Dhere <chaitanya.dhere(a)amd.com> Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: George Shen <george.shen(a)amd.com> --- .../amd/display/dc/dml2/dml21/dml21_wrapper.c | 1 + .../dc/dml2/dml21/src/dml2_top/dml_top.c | 17 +++++++++++++++++ .../dml21/src/inc/dml2_internal_shared_types.h | 1 + 3 files changed, 19 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_wrapper.c b/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_wrapper.c index b442e1f9f204..9c28304568d2 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_wrapper.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_wrapper.c @@ -257,6 +257,7 @@ static bool dml21_check_mode_support(const struct dc *in_dc, struct dc_state *co mode_support->dml2_instance = dml_init->dml2_instance; dml21_map_dc_state_into_dml_display_cfg(in_dc, context, dml_ctx); + dml_ctx->v21.mode_programming.dml2_instance->scratch.build_mode_programming_locals.mode_programming_params.programming = dml_ctx->v21.mode_programming.programming; is_supported = dml2_check_mode_supported(mode_support); if (!is_supported) return false; diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_top/dml_top.c b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_top/dml_top.c index 6f334fdc6eb8..2fb3e2f45e07 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_top/dml_top.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_top/dml_top.c @@ -96,10 +96,15 @@ bool dml2_check_mode_supported(struct dml2_check_mode_supported_in_out *in_out) { struct dml2_instance *dml = (struct dml2_instance *)in_out->dml2_instance; struct dml2_check_mode_supported_locals *l = &dml->scratch.check_mode_supported_locals; + /* Borrow the build_mode_programming_locals programming struct for DPMM call. */ + struct dml2_display_cfg_programming *dpmm_programming = dml->scratch.build_mode_programming_locals.mode_programming_params.programming; bool result = false; bool mcache_success = false; + if (dpmm_programming) + memset(dpmm_programming, 0, sizeof(struct dml2_display_cfg_programming)); + setup_unoptimized_display_config_with_meta(dml, &l->base_display_config_with_meta, in_out->display_config); l->mode_support_params.instance = &dml->core_instance; @@ -122,6 +127,18 @@ bool dml2_check_mode_supported(struct dml2_check_mode_supported_in_out *in_out) mcache_success = dml2_top_optimization_perform_optimization_phase(&l->optimization_phase_locals, &mcache_phase); } + /* + * Call DPMM to map all requirements to minimum clock state + */ + if (result && dpmm_programming) { + l->dppm_map_mode_params.min_clk_table = &dml->min_clk_table; + l->dppm_map_mode_params.display_cfg = &l->base_display_config_with_meta; + l->dppm_map_mode_params.programming = dpmm_programming; + l->dppm_map_mode_params.soc_bb = &dml->soc_bbox; + l->dppm_map_mode_params.ip = &dml->core_instance.clean_me_up.mode_lib.ip; + result = dml->dpmm_instance.map_mode_to_soc_dpm(&l->dppm_map_mode_params); + } + in_out->is_supported = mcache_success; result = result && in_out->is_supported; diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/inc/dml2_internal_shared_types.h b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/inc/dml2_internal_shared_types.h index dd90c5df5a5a..5632cdacb7f4 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/inc/dml2_internal_shared_types.h +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/inc/dml2_internal_shared_types.h @@ -870,6 +870,7 @@ struct dml2_check_mode_supported_locals { struct dml2_optimization_phase_locals optimization_phase_locals; struct display_configuation_with_meta base_display_config_with_meta; struct display_configuation_with_meta optimized_display_config_with_meta; + struct dml2_dpmm_map_mode_to_soc_dpm_params_in_out dppm_map_mode_params; }; struct optimization_init_function_params { -- 2.34.1

4 months, 1 week

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[PATCH 18/39] drm/amd/display: resync OTG after DIO FIFO resync

by Alex Hung

From: TungYu Lu <tungyu.lu(a)amd.com> [WHY] Tiled displays showed not aligned on 8K60hz when system resumed from S3/S4. [HOW] Do dc_trigger_sync to re-sync pipes to ensure OTG become synced. Reviewed-by: Alvin Lee <alvin.lee2(a)amd.com> Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: TungYu Lu <tungyu.lu(a)amd.com> --- drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c index bdbb4a71651f..fe62478fbcde 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c @@ -1254,6 +1254,8 @@ void dcn32_resync_fifo_dccg_dio(struct dce_hwseq *hws, struct dc *dc, struct dc_ pipe->stream_res.tg->funcs->enable_crtc(pipe->stream_res.tg); } } + + dc_trigger_sync(dc, dc->current_state); } void dcn32_unblank_stream(struct pipe_ctx *pipe_ctx, -- 2.34.1

4 months, 1 week

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[PATCH 17/39] drm/amd/display: Always enable HPO for DCN4 dGPU

by Alex Hung

From: "Leo (Hanghong) Ma" <hanghong.ma(a)amd.com> [WHY && HOW] Some DP EDID CTS tests fail due to HPO disable, and we should keep it enable on DCN4 dGPU. Reviewed-by: Wenjing Liu <wenjing.liu(a)amd.com> Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Leo (Hanghong) Ma <hanghong.ma(a)amd.com> --- drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c | 2 ++ drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_init.c | 1 - 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c index 42753f56d31d..79a911e1a09a 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c @@ -408,6 +408,8 @@ void dcn401_init_hw(struct dc *dc) REG_UPDATE(DCFCLK_CNTL, DCFCLK_GATE_DIS, 0); } + dcn401_setup_hpo_hw_control(hws, true); + if (!dcb->funcs->is_accelerated_mode(dcb) && dc->res_pool->hubbub->funcs->init_watermarks) dc->res_pool->hubbub->funcs->init_watermarks(dc->res_pool->hubbub); diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_init.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_init.c index 1cf0608e1980..8159fd838dc3 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_init.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_init.c @@ -137,7 +137,6 @@ static const struct hwseq_private_funcs dcn401_private_funcs = { .program_mall_pipe_config = dcn32_program_mall_pipe_config, .update_force_pstate = dcn32_update_force_pstate, .update_mall_sel = dcn32_update_mall_sel, - .setup_hpo_hw_control = dcn401_setup_hpo_hw_control, .calculate_dccg_k1_k2_values = NULL, .apply_single_controller_ctx_to_hw = dce110_apply_single_controller_ctx_to_hw, .reset_back_end_for_pipe = dcn20_reset_back_end_for_pipe, -- 2.34.1

4 months, 1 week

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[PATCH 16/39] drm/amd/display: Use sw cursor for DCN401 with rotation

by Alex Hung

From: Aurabindo Pillai <aurabindo.pillai(a)amd.com> [WHAT & HOW] On DCN401, the cursor composition to the plane happens after scaler. So the cursor isn't stretched with the rest of the surface. Temporarily disable hardware cursor in case when hardware rotation is enabled such that userspace falls back to software cursor. Reviewed-by: Sun peng Li <sunpeng.li(a)amd.com> Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira(a)amd.com> Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai(a)amd.com> --- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 34 ++++++++++++++++--- 1 file changed, 29 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 590e899ae3d0..89e371f870b8 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -11093,8 +11093,12 @@ static int dm_crtc_get_cursor_mode(struct amdgpu_device *adev, int cursor_scale_w, cursor_scale_h; int i; - /* Overlay cursor not supported on HW before DCN */ - if (amdgpu_ip_version(adev, DCE_HWIP, 0) == 0) { + /* Overlay cursor not supported on HW before DCN + * DCN401 does not have the cursor-on-scaled-plane or cursor-on-yuv-plane restrictions + * as previous DCN generations, so enable native mode on DCN401 in addition to DCE + */ + if (amdgpu_ip_version(adev, DCE_HWIP, 0) == 0 || + amdgpu_ip_version(adev, DCE_HWIP, 0) == IP_VERSION(4, 0, 1)) { *cursor_mode = DM_CURSOR_NATIVE_MODE; return 0; } @@ -11237,7 +11241,7 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev, struct drm_crtc *crtc; struct drm_crtc_state *old_crtc_state, *new_crtc_state; struct drm_plane *plane; - struct drm_plane_state *old_plane_state, *new_plane_state; + struct drm_plane_state *old_plane_state, *new_plane_state, *new_cursor_state; enum dc_status status; int ret, i; bool lock_and_validation_needed = false; @@ -11465,19 +11469,39 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev, drm_dbg_atomic(dev, "MPO enablement requested on crtc:[%p]\n", crtc); } - /* Check cursor planes restrictions */ + /* Check cursor restrictions */ for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { enum amdgpu_dm_cursor_mode required_cursor_mode; + int is_rotated, is_scaled; /* Overlay cusor not subject to native cursor restrictions */ dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); if (dm_new_crtc_state->cursor_mode == DM_CURSOR_OVERLAY_MODE) continue; + /* Check if rotation or scaling is enabled on DCN401 */ + if ((drm_plane_mask(crtc->cursor) & new_crtc_state->plane_mask) && + amdgpu_ip_version(adev, DCE_HWIP, 0) == IP_VERSION(4, 0, 1)) { + new_cursor_state = drm_atomic_get_new_plane_state(state, crtc->cursor); + + is_rotated = new_cursor_state && + ((new_cursor_state->rotation & DRM_MODE_ROTATE_MASK) != DRM_MODE_ROTATE_0); + is_scaled = new_cursor_state && ((new_cursor_state->src_w >> 16 != new_cursor_state->crtc_w) || + (new_cursor_state->src_h >> 16 != new_cursor_state->crtc_h)); + + if (is_rotated || is_scaled) { + drm_dbg_driver( + crtc->dev, + "[CRTC:%d:%s] cannot enable hardware cursor due to rotation/scaling\n", + crtc->base.id, crtc->name); + ret = -EINVAL; + goto fail; + } + } + /* If HW can only do native cursor, check restrictions again */ ret = dm_crtc_get_cursor_mode(adev, state, dm_new_crtc_state, &required_cursor_mode); - if (ret) { drm_dbg_driver(crtc->dev, "[CRTC:%d:%s] Checking cursor mode failed\n", -- 2.34.1

4 months, 1 week

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[PATCH 09/39] drm/amd/display: Fix cursor size issues

by Alex Hung

From: Nevenko Stupar <nevenko.stupar(a)amd.com> [WHY & HOW] Fix the cursor size between ODM slices. Reviewed-by: Sridevi Arvindekar <sridevi.arvindekar(a)amd.com> Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Nevenko Stupar <nevenko.stupar(a)amd.com> --- .../drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c index 0cf55f557c3c..42753f56d31d 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c @@ -1169,6 +1169,20 @@ void dcn401_set_cursor_position(struct pipe_ctx *pipe_ctx) x_pos -= (prev_odm_width + prev_odm_offset); } + /* If the position is negative then we need to add to the hotspot + * to fix cursor size between ODM slices + */ + + if (x_pos < 0) { + pos_cpy.x_hotspot -= x_pos; + x_pos = 0; + } + + if (y_pos < 0) { + pos_cpy.y_hotspot -= y_pos; + y_pos = 0; + } + pos_cpy.x = (uint32_t)x_pos; pos_cpy.y = (uint32_t)y_pos; -- 2.34.1

4 months, 1 week

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[PATCH 06/39] drm/amd/display: Send DP_TOTAL_LTTPR_CNT during detection if LTTPR is present

by Alex Hung

From: Michael Strauss <michael.strauss(a)amd.com> [WHY] New register field added in DP2.1 SCR, needed for auxless ALPM [HOW] Echo value read from 0xF0007 back to sink Reviewed-by: Wenjing Liu <wenjing.liu(a)amd.com> Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Michael Strauss <michael.strauss(a)amd.com> --- .../amd/display/dc/link/protocols/link_dp_capability.c | 10 +++++++++- drivers/gpu/drm/amd/display/include/dpcd_defs.h | 5 +++++ 2 files changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c index 00974c50e11f..f1cac74dd7f7 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c @@ -1605,9 +1605,17 @@ static bool retrieve_link_cap(struct dc_link *link) return false; } - if (dp_is_lttpr_present(link)) + if (dp_is_lttpr_present(link)) { configure_lttpr_mode_transparent(link); + // Echo TOTAL_LTTPR_CNT back downstream + core_link_write_dpcd( + link, + DP_TOTAL_LTTPR_CNT, + &link->dpcd_caps.lttpr_caps.phy_repeater_cnt, + sizeof(link->dpcd_caps.lttpr_caps.phy_repeater_cnt)); + } + /* Read DP tunneling information. */ status = dpcd_get_tunneling_device_data(link); diff --git a/drivers/gpu/drm/amd/display/include/dpcd_defs.h b/drivers/gpu/drm/amd/display/include/dpcd_defs.h index 914f28e9f224..aee5170f5fb2 100644 --- a/drivers/gpu/drm/amd/display/include/dpcd_defs.h +++ b/drivers/gpu/drm/amd/display/include/dpcd_defs.h @@ -177,4 +177,9 @@ enum dpcd_psr_sink_states { #define DP_SINK_PR_PIXEL_DEVIATION_PER_LINE 0x379 #define DP_SINK_PR_MAX_NUMBER_OF_DEVIATION_LINE 0x37A +/* Remove once drm_dp_helper.h is updated upstream */ +#ifndef DP_TOTAL_LTTPR_CNT +#define DP_TOTAL_LTTPR_CNT 0xF000A /* 2.1 */ +#endif + #endif /* __DAL_DPCD_DEFS_H__ */ -- 2.34.1

4 months, 1 week

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