From: Lo-an Chen <[email protected]> [WHY] When the system powers up eDP with external monitors in seamless boot sequence, stutter get enabled before TTU and HUBP registers being programmed, which resulting in underflow.
[HOW] Enable TTU in hubp_init. Change the sequence that do not perpare_bandwidth and optimize_bandwidth while having seamless boot streams. Cc: Mario Limonciello <[email protected]> Cc: Alex Deucher <[email protected]> Cc: [email protected] Reviewed-by: Nicholas Kazlauskas <[email protected]> Signed-off-by: Lo-an Chen <[email protected]> Signed-off-by: Paul Hsieh <[email protected]> Signed-off-by: Alex Hung <[email protected]> --- drivers/gpu/drm/amd/display/dc/core/dc.c | 2 +- drivers/gpu/drm/amd/display/dc/hubbub/dcn30/dcn30_hubbub.c | 3 ++- drivers/gpu/drm/amd/display/dc/hubbub/dcn31/dcn31_hubbub.c | 3 ++- drivers/gpu/drm/amd/display/dc/hubbub/dcn32/dcn32_hubbub.c | 3 ++- drivers/gpu/drm/amd/display/dc/hubbub/dcn35/dcn35_hubbub.c | 3 ++- drivers/gpu/drm/amd/display/dc/hubp/dcn30/dcn30_hubp.c | 2 ++ drivers/gpu/drm/amd/display/dc/hubp/dcn32/dcn32_hubp.c | 2 ++ drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c | 3 ++- 8 files changed, 15 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index a5f511da1faa..a2b0331ef579 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -2192,7 +2192,7 @@ static enum dc_status dc_commit_state_no_check(struct dc *dc, struct dc_state *c dc_enable_stereo(dc, context, dc_streams, context->stream_count); - if (context->stream_count > get_seamless_boot_stream_count(context) || + if (get_seamless_boot_stream_count(context) == 0 || context->stream_count == 0) { /* Must wait for no flips to be pending before doing optimize bw */ hwss_wait_for_no_pipes_pending(dc, context); diff --git a/drivers/gpu/drm/amd/display/dc/hubbub/dcn30/dcn30_hubbub.c b/drivers/gpu/drm/amd/display/dc/hubbub/dcn30/dcn30_hubbub.c index fe741100c0f8..d347bb06577a 100644 --- a/drivers/gpu/drm/amd/display/dc/hubbub/dcn30/dcn30_hubbub.c +++ b/drivers/gpu/drm/amd/display/dc/hubbub/dcn30/dcn30_hubbub.c @@ -129,7 +129,8 @@ bool hubbub3_program_watermarks( REG_UPDATE(DCHUBBUB_ARB_DF_REQ_OUTSTAND, DCHUBBUB_ARB_MIN_REQ_OUTSTAND, 0x1FF); - hubbub1_allow_self_refresh_control(hubbub, !hubbub->ctx->dc->debug.disable_stutter); + if (safe_to_lower || hubbub->ctx->dc->debug.disable_stutter) + hubbub1_allow_self_refresh_control(hubbub, !hubbub->ctx->dc->debug.disable_stutter); return wm_pending; } diff --git a/drivers/gpu/drm/amd/display/dc/hubbub/dcn31/dcn31_hubbub.c b/drivers/gpu/drm/amd/display/dc/hubbub/dcn31/dcn31_hubbub.c index 7fb5523f9722..b98505b240a7 100644 --- a/drivers/gpu/drm/amd/display/dc/hubbub/dcn31/dcn31_hubbub.c +++ b/drivers/gpu/drm/amd/display/dc/hubbub/dcn31/dcn31_hubbub.c @@ -750,7 +750,8 @@ static bool hubbub31_program_watermarks( REG_UPDATE(DCHUBBUB_ARB_DF_REQ_OUTSTAND, DCHUBBUB_ARB_MIN_REQ_OUTSTAND, 0x1FF);*/ - hubbub1_allow_self_refresh_control(hubbub, !hubbub->ctx->dc->debug.disable_stutter); + if (safe_to_lower || hubbub->ctx->dc->debug.disable_stutter) + hubbub1_allow_self_refresh_control(hubbub, !hubbub->ctx->dc->debug.disable_stutter); return wm_pending; } diff --git a/drivers/gpu/drm/amd/display/dc/hubbub/dcn32/dcn32_hubbub.c b/drivers/gpu/drm/amd/display/dc/hubbub/dcn32/dcn32_hubbub.c index 5264dc26cce1..32a6be543105 100644 --- a/drivers/gpu/drm/amd/display/dc/hubbub/dcn32/dcn32_hubbub.c +++ b/drivers/gpu/drm/amd/display/dc/hubbub/dcn32/dcn32_hubbub.c @@ -786,7 +786,8 @@ static bool hubbub32_program_watermarks( REG_UPDATE(DCHUBBUB_ARB_DF_REQ_OUTSTAND, DCHUBBUB_ARB_MIN_REQ_OUTSTAND, 0x1FF);*/ - hubbub1_allow_self_refresh_control(hubbub, !hubbub->ctx->dc->debug.disable_stutter); + if (safe_to_lower || hubbub->ctx->dc->debug.disable_stutter) + hubbub1_allow_self_refresh_control(hubbub, !hubbub->ctx->dc->debug.disable_stutter); hubbub32_force_usr_retraining_allow(hubbub, hubbub->ctx->dc->debug.force_usr_allow); diff --git a/drivers/gpu/drm/amd/display/dc/hubbub/dcn35/dcn35_hubbub.c b/drivers/gpu/drm/amd/display/dc/hubbub/dcn35/dcn35_hubbub.c index 5eb3da8d5206..dce7269959ce 100644 --- a/drivers/gpu/drm/amd/display/dc/hubbub/dcn35/dcn35_hubbub.c +++ b/drivers/gpu/drm/amd/display/dc/hubbub/dcn35/dcn35_hubbub.c @@ -326,7 +326,8 @@ static bool hubbub35_program_watermarks( DCHUBBUB_ARB_MIN_REQ_OUTSTAND_COMMIT_THRESHOLD, 0xA);/*hw delta*/ REG_UPDATE(DCHUBBUB_ARB_HOSTVM_CNTL, DCHUBBUB_ARB_MAX_QOS_COMMIT_THRESHOLD, 0xF); - hubbub1_allow_self_refresh_control(hubbub, !hubbub->ctx->dc->debug.disable_stutter); + if (safe_to_lower || hubbub->ctx->dc->debug.disable_stutter) + hubbub1_allow_self_refresh_control(hubbub, !hubbub->ctx->dc->debug.disable_stutter); hubbub32_force_usr_retraining_allow(hubbub, hubbub->ctx->dc->debug.force_usr_allow); diff --git a/drivers/gpu/drm/amd/display/dc/hubp/dcn30/dcn30_hubp.c b/drivers/gpu/drm/amd/display/dc/hubp/dcn30/dcn30_hubp.c index be0ac613675a..0da70b50e86d 100644 --- a/drivers/gpu/drm/amd/display/dc/hubp/dcn30/dcn30_hubp.c +++ b/drivers/gpu/drm/amd/display/dc/hubp/dcn30/dcn30_hubp.c @@ -500,6 +500,8 @@ void hubp3_init(struct hubp *hubp) //hubp[i].HUBPREQ_DEBUG.HUBPREQ_DEBUG[26] = 1; REG_WRITE(HUBPREQ_DEBUG, 1 << 26); + REG_UPDATE(DCHUBP_CNTL, HUBP_TTU_DISABLE, 0); + hubp_reset(hubp); } diff --git a/drivers/gpu/drm/amd/display/dc/hubp/dcn32/dcn32_hubp.c b/drivers/gpu/drm/amd/display/dc/hubp/dcn32/dcn32_hubp.c index edd37898d550..f3a21c623f44 100644 --- a/drivers/gpu/drm/amd/display/dc/hubp/dcn32/dcn32_hubp.c +++ b/drivers/gpu/drm/amd/display/dc/hubp/dcn32/dcn32_hubp.c @@ -168,6 +168,8 @@ void hubp32_init(struct hubp *hubp) { struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp); REG_WRITE(HUBPREQ_DEBUG_DB, 1 << 8); + + REG_UPDATE(DCHUBP_CNTL, HUBP_TTU_DISABLE, 0); } static struct hubp_funcs dcn32_hubp_funcs = { .hubp_enable_tripleBuffer = hubp2_enable_triplebuffer, diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c index 623cde76debf..b907ad1acedd 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c @@ -236,7 +236,8 @@ void dcn35_init_hw(struct dc *dc) } hws->funcs.init_pipes(dc, dc->current_state); - if (dc->res_pool->hubbub->funcs->allow_self_refresh_control) + if (dc->res_pool->hubbub->funcs->allow_self_refresh_control && + !dc->res_pool->hubbub->ctx->dc->debug.disable_stutter) dc->res_pool->hubbub->funcs->allow_self_refresh_control(dc->res_pool->hubbub, !dc->res_pool->hubbub->ctx->dc->debug.disable_stutter); } -- 2.43.0
