From ae8cf9774e3a609066b277c3742c3551564fb079 Mon Sep 17 00:00:00 2001 From: "Leo (Hanghong) Ma" Date: Fri, 6 Sep 2019 09:49:19 -0400 Subject: [PATCH] drm/amd/display: Add some hardware status in DTN log debugfs [Why] For debug purpose, we need to check the following hardware status in DTN log debugfs: 1.dpp & hubp clock enable; 2.crtc blank enable; 3.link phy status; [How] Add the upper information in the amdgpu_dm_dtn_log debugfs. For CRTC blanked status, since DCN2 and greater reports it on the OPP instead of OTG, we patch it in after calling optc1_read_otg_states. Ideally, this should be done in the DCN version specific function hooks. It has been left as a TODO item. Signed-off-by: Leo (Hanghong) Ma Reviewed-by: Mikita Lipski Acked-by: Bhawanpreet Lakha Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- .../gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c | 3 ++ .../gpu/drm/amd/display/dc/dcn10/dcn10_hubp.h | 1 + .../amd/display/dc/dcn10/dcn10_hw_sequencer.c | 43 +++++++++++++------ .../gpu/drm/amd/display/dc/dcn10/dcn10_opp.c | 1 + .../gpu/drm/amd/display/dc/dcn10/dcn10_optc.h | 1 + .../amd/display/dc/dcn20/dcn20_link_encoder.c | 1 + .../drm/amd/display/dc/inc/hw/link_encoder.h | 1 + 7 files changed, 37 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c index 14d1be6c66e6..5aeee938605a 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c @@ -1014,6 +1014,9 @@ void hubp1_read_state_common(struct hubp *hubp) HUBP_TTU_DISABLE, &s->ttu_disable, HUBP_UNDERFLOW_STATUS, &s->underflow_status); + REG_GET(HUBP_CLK_CNTL, + HUBP_CLOCK_ENABLE, &s->clock_en); + REG_GET(DCN_GLOBAL_TTU_CNTL, MIN_TTU_VBLANK, &s->min_ttu_vblank); diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.h b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.h index ae70d9c0aa1d..e65e76f018e4 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.h +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.h @@ -670,6 +670,7 @@ struct dcn_hubp_state { uint32_t sw_mode; uint32_t dcc_en; uint32_t blank_en; + uint32_t clock_en; uint32_t underflow_status; uint32_t ttu_disable; uint32_t min_ttu_vblank; diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c index 32844cd50d09..0a30d97b2656 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c @@ -129,9 +129,8 @@ static void dcn10_log_hubp_states(struct dc *dc, void *log_ctx) struct resource_pool *pool = dc->res_pool; int i; - DTN_INFO("HUBP: format addr_hi width height" - " rot mir sw_mode dcc_en blank_en ttu_dis underflow" - " min_ttu_vblank qos_low_wm qos_high_wm\n"); + DTN_INFO( + "HUBP: format addr_hi width height rot mir sw_mode dcc_en blank_en clock_en ttu_dis underflow min_ttu_vblank qos_low_wm qos_high_wm\n"); for (i = 0; i < pool->pipe_count; i++) { struct hubp *hubp = pool->hubps[i]; struct dcn_hubp_state *s = &(TO_DCN10_HUBP(hubp)->state); @@ -139,8 +138,7 @@ static void dcn10_log_hubp_states(struct dc *dc, void *log_ctx) hubp->funcs->hubp_read_state(hubp); if (!s->blank_en) { - DTN_INFO("[%2d]: %5xh %6xh %5d %6d %2xh %2xh %6xh" - " %6d %8d %7d %8xh", + DTN_INFO("[%2d]: %5xh %6xh %5d %6d %2xh %2xh %6xh %6d %8d %8d %7d %8xh", hubp->inst, s->pixel_format, s->inuse_addr_hi, @@ -151,6 +149,7 @@ static void dcn10_log_hubp_states(struct dc *dc, void *log_ctx) s->sw_mode, s->dcc_en, s->blank_en, + s->clock_en, s->ttu_disable, s->underflow_status); DTN_INFO_MICRO_SEC(s->min_ttu_vblank); @@ -308,21 +307,35 @@ void dcn10_log_hw_state(struct dc *dc, } DTN_INFO("\n"); - DTN_INFO("OTG: v_bs v_be v_ss v_se vpol vmax vmin vmax_sel vmin_sel" - " h_bs h_be h_ss h_se hpol htot vtot underflow\n"); + DTN_INFO("OTG: v_bs v_be v_ss v_se vpol vmax vmin vmax_sel vmin_sel h_bs h_be h_ss h_se hpol htot vtot underflow blank_en\n"); for (i = 0; i < pool->timing_generator_count; i++) { struct timing_generator *tg = pool->timing_generators[i]; struct dcn_otg_state s = {0}; - + /* Read shared OTG state registers for all DCNx */ optc1_read_otg_state(DCN10TG_FROM_TG(tg), &s); +#ifdef CONFIG_DRM_AMD_DC_DCN2_0 + /* + * For DCN2 and greater, a register on the OPP is used to + * determine if the CRTC is blanked instead of the OTG. So use + * dpg_is_blanked() if exists, otherwise fallback on otg. + * + * TODO: Implement DCN-specific read_otg_state hooks. + */ + if (pool->opps[i]->funcs->dpg_is_blanked) + s.blank_enabled = pool->opps[i]->funcs->dpg_is_blanked(pool->opps[i]); + else + s.blank_enabled = tg->funcs->is_blanked(tg); +#else + s.blank_enabled = tg->funcs->is_blanked(tg); +#endif + //only print if OTG master is enabled if ((s.otg_enabled & 1) == 0) continue; - DTN_INFO("[%d]: %5d %5d %5d %5d %5d %5d %5d %9d %9d %5d %5d %5d" - " %5d %5d %5d %5d %9d\n", + DTN_INFO("[%d]: %5d %5d %5d %5d %5d %5d %5d %9d %9d %5d %5d %5d %5d %5d %5d %5d %9d %8d\n", tg->inst, s.v_blank_start, s.v_blank_end, @@ -340,7 +353,8 @@ void dcn10_log_hw_state(struct dc *dc, s.h_sync_a_pol, s.h_total, s.v_total, - s.underflow_occurred_status); + s.underflow_occurred_status, + s.blank_enabled); // Clear underflow for debug purposes // We want to keep underflow sticky bit on for the longevity tests outside of test environment. @@ -387,7 +401,7 @@ void dcn10_log_hw_state(struct dc *dc, } DTN_INFO("\n"); - DTN_INFO("L_ENC: DPHY_FEC_EN DPHY_FEC_READY_SHADOW DPHY_FEC_ACTIVE_STATUS\n"); + DTN_INFO("L_ENC: DPHY_FEC_EN DPHY_FEC_READY_SHADOW DPHY_FEC_ACTIVE_STATUS DP_LINK_TRAINING_COMPLETE\n"); for (i = 0; i < dc->link_count; i++) { struct link_encoder *lenc = dc->links[i]->link_enc; @@ -395,11 +409,12 @@ void dcn10_log_hw_state(struct dc *dc, if (lenc->funcs->read_state) { lenc->funcs->read_state(lenc, &s); - DTN_INFO("[%-3d]: %-12d %-22d %-22d\n", + DTN_INFO("[%-3d]: %-12d %-22d %-22d %-25d\n", i, s.dphy_fec_en, s.dphy_fec_ready_shadow, - s.dphy_fec_active_status); + s.dphy_fec_active_status, + s.dp_link_training_complete); DTN_INFO("\n"); } } diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c index 0a9ad692f541..33a3dcdb3fd1 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c @@ -406,6 +406,7 @@ static const struct opp_funcs dcn10_opp_funcs = { .opp_pipe_clock_control = opp1_pipe_clock_control, #if defined(CONFIG_DRM_AMD_DC_DCN2_0) .opp_set_disp_pattern_generator = NULL, + .dpg_is_blanked = NULL, #endif .opp_destroy = opp1_destroy }; diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h index c8d795b335ba..4476bc8cdb4d 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h @@ -542,6 +542,7 @@ struct dcn_otg_state { uint32_t h_total; uint32_t underflow_occurred_status; uint32_t otg_enabled; + uint32_t blank_enabled; }; void optc1_read_otg_state(struct optc *optc1, diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_link_encoder.c index e476f27aa3a9..0e0306d84cd8 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_link_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_link_encoder.c @@ -203,6 +203,7 @@ void link_enc2_read_state(struct link_encoder *enc, struct link_enc_state *s) REG_GET(DP_DPHY_CNTL, DPHY_FEC_EN, &s->dphy_fec_en); REG_GET(DP_DPHY_CNTL, DPHY_FEC_READY_SHADOW, &s->dphy_fec_ready_shadow); REG_GET(DP_DPHY_CNTL, DPHY_FEC_ACTIVE_STATUS, &s->dphy_fec_active_status); + REG_GET(DP_LINK_CNTL, DP_LINK_TRAINING_COMPLETE, &s->dp_link_training_complete); } #endif diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h b/drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h index b21909216fb6..af57751ed8a1 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h @@ -124,6 +124,7 @@ struct link_enc_state { uint32_t dphy_fec_en; uint32_t dphy_fec_ready_shadow; uint32_t dphy_fec_active_status; + uint32_t dp_link_training_complete; }; #endif