From: Lo-an Chen <lo-an.chen@xxxxxxx>
[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 <mario.limonciello@xxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx>
Signed-off-by: Lo-an Chen <lo-an.chen@xxxxxxx>
Signed-off-by: Paul Hsieh <paul.hsieh@xxxxxxx>
Signed-off-by: Alex Hung <alex.hung@xxxxxxx>
---
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
