The patch below does not apply to the 6.7-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.7.y
git checkout FETCH_HEAD
git cherry-pick -x 2d1c884a535fcca74814553132d41c15dc9831ef
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024012705-entitle-domelike-67c5@gregkh' --subject-prefix 'PATCH 6.7.y' HEAD^..
Possible dependencies:
2d1c884a535f ("drm/amd/display: Fix black screen on video playback with embedded panel")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 2d1c884a535fcca74814553132d41c15dc9831ef Mon Sep 17 00:00:00 2001
From: Sung Joon Kim <sungkim(a)amd.com>
Date: Fri, 10 Nov 2023 11:33:45 -0500
Subject: [PATCH] drm/amd/display: Fix black screen on video playback with
embedded panel
[why]
We have dynamic power control in driver but
should be ignored when power is forced on.
[how]
Bypass any power control when it's forced on.
Cc: stable(a)vger.kernel.org
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas(a)amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz(a)amd.com>
Signed-off-by: Sung Joon Kim <sungkim(a)amd.com>
Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com>
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
index 19f8d83698be..63a0b885b6f0 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
@@ -1132,7 +1132,6 @@ void dcn35_clk_mgr_construct(
ctx->dc->debug.disable_dpp_power_gate = false;
ctx->dc->debug.disable_hubp_power_gate = false;
ctx->dc->debug.disable_dsc_power_gate = false;
- ctx->dc->debug.disable_hpo_power_gate = false;
} else {
/*let's reset the config control flag*/
ctx->dc->config.disable_ips = DMUB_IPS_DISABLE_ALL; /*pmfw not support it, disable it all*/
diff --git a/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_pg_cntl.c b/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_pg_cntl.c
index 0f60c40e1fc5..53bd0ae4bab5 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_pg_cntl.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_pg_cntl.c
@@ -261,6 +261,7 @@ void pg_cntl35_hpo_pg_control(struct pg_cntl *pg_cntl, 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;
+ uint32_t power_forceon;
bool block_enabled;
if (pg_cntl->ctx->dc->debug.ignore_pg ||
@@ -277,6 +278,10 @@ void pg_cntl35_hpo_pg_control(struct pg_cntl *pg_cntl, bool power_on)
return;
}
+ REG_GET(DOMAIN25_PG_CONFIG, DOMAIN_POWER_FORCEON, &power_forceon);
+ if (power_forceon)
+ 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);
@@ -304,6 +309,7 @@ void pg_cntl35_io_clk_pg_control(struct pg_cntl *pg_cntl, 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;
+ uint32_t power_forceon;
bool block_enabled;
if (pg_cntl->ctx->dc->debug.ignore_pg ||
@@ -319,6 +325,10 @@ void pg_cntl35_io_clk_pg_control(struct pg_cntl *pg_cntl, bool power_on)
return;
}
+ REG_GET(DOMAIN22_PG_CONFIG, DOMAIN_POWER_FORCEON, &power_forceon);
+ if (power_forceon)
+ 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);
The patch below does not apply to the 6.1-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y
git checkout FETCH_HEAD
git cherry-pick -x 5a9a2cc8ae1889c4002850b00fd4fd9691dfac4e
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024012754-uneaten-backwater-0004@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..
Possible dependencies:
5a9a2cc8ae18 ("drm/amd/display: force toggle rate wa for first link training for a retimer")
7727e7b60f82 ("drm/amd/display: Improve robustness of FIXED_VS link training at DP1 rates")
80c6d6804f31 ("drm/amd/display: disable SubVP + DRR to prevent underflow")
54618888d1ea ("drm/amd/display: break down dc_link.c")
71d7e8904d54 ("drm/amd/display: Add HDMI manufacturer OUI and device id read")
65a4cfb45e0e ("drm/amdgpu/display: remove duplicate include header in files")
e322843e5e33 ("drm/amd/display: fix linux dp link lost handled only one time")
0c2bfcc338eb ("drm/amd/display: Add Function declaration in dc_link")
6ca7415f11af ("drm/amd/display: merge dc_link_dp into dc_link")
de3fb390175b ("drm/amd/display: move dp cts functions from dc_link_dp to link_dp_cts")
c5a31f178e35 ("drm/amd/display: move dp irq handler functions from dc_link_dp to link_dp_irq_handler")
0078c924e733 ("drm/amd/display: move eDP panel control logic to link_edp_panel_control")
bc33f5e5f05b ("drm/amd/display: create accessories, hwss and protocols sub folders in link")
2daeb74b7d66 ("drm/amdgpu/display/mst: update mst_mgr relevant variable when long HPD")
028c4ccfb812 ("drm/amd/display: force connector state when bpc changes during compliance")
603a521ec279 ("drm/amd/display: remove duplicate included header files")
bd3149014dff ("drm/amd/display: Decrease messaging about DP alt mode state to debug")
d5a43956b73b ("drm/amd/display: move dp capability related logic to link_dp_capability")
94dfeaa46925 ("drm/amd/display: move dp phy related logic to link_dp_phy")
630168a97314 ("drm/amd/display: move dp link training logic to link_dp_training")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 5a9a2cc8ae1889c4002850b00fd4fd9691dfac4e Mon Sep 17 00:00:00 2001
From: Zhongwei <zhongwei.zhang(a)amd.com>
Date: Wed, 8 Nov 2023 16:34:36 +0800
Subject: [PATCH] drm/amd/display: force toggle rate wa for first link training
for a retimer
[WHY]
Handover from DMUB to driver does not perform link rate toggle.
It might cause link training failure for boot up.
[HOW]
Force toggle rate wa for first link train.
link->vendor_specific_lttpr_link_rate_wa should be zero then.
Cc: stable(a)vger.kernel.org # 6.1+
Reviewed-by: Michael Strauss <michael.strauss(a)amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz(a)amd.com>
Signed-off-by: Zhongwei <zhongwei.zhang(a)amd.com>
Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com>
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_fixed_vs_pe_retimer.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_fixed_vs_pe_retimer.c
index fd8f6f198146..68096d12f52f 100644
--- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_fixed_vs_pe_retimer.c
+++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_fixed_vs_pe_retimer.c
@@ -115,7 +115,7 @@ static enum link_training_result perform_fixed_vs_pe_nontransparent_training_seq
lt_settings->cr_pattern_time = 16000;
/* Fixed VS/PE specific: Toggle link rate */
- apply_toggle_rate_wa = (link->vendor_specific_lttpr_link_rate_wa == target_rate);
+ apply_toggle_rate_wa = ((link->vendor_specific_lttpr_link_rate_wa == target_rate) || (link->vendor_specific_lttpr_link_rate_wa == 0));
target_rate = get_dpcd_link_rate(<_settings->link_settings);
toggle_rate = (target_rate == 0x6) ? 0xA : 0x6;
@@ -271,7 +271,7 @@ enum link_training_result dp_perform_fixed_vs_pe_training_sequence_legacy(
/* Vendor specific: Toggle link rate */
toggle_rate = (rate == 0x6) ? 0xA : 0x6;
- if (link->vendor_specific_lttpr_link_rate_wa == rate) {
+ if (link->vendor_specific_lttpr_link_rate_wa == rate || link->vendor_specific_lttpr_link_rate_wa == 0) {
core_link_write_dpcd(
link,
DP_LINK_BW_SET,
@@ -617,7 +617,7 @@ enum link_training_result dp_perform_fixed_vs_pe_training_sequence(
/* Vendor specific: Toggle link rate */
toggle_rate = (rate == 0x6) ? 0xA : 0x6;
- if (link->vendor_specific_lttpr_link_rate_wa == rate) {
+ if (link->vendor_specific_lttpr_link_rate_wa == rate || link->vendor_specific_lttpr_link_rate_wa == 0) {
core_link_write_dpcd(
link,
DP_LINK_BW_SET,
The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x 5a9a2cc8ae1889c4002850b00fd4fd9691dfac4e
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024012753-radiation-single-4e58@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..
Possible dependencies:
5a9a2cc8ae18 ("drm/amd/display: force toggle rate wa for first link training for a retimer")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 5a9a2cc8ae1889c4002850b00fd4fd9691dfac4e Mon Sep 17 00:00:00 2001
From: Zhongwei <zhongwei.zhang(a)amd.com>
Date: Wed, 8 Nov 2023 16:34:36 +0800
Subject: [PATCH] drm/amd/display: force toggle rate wa for first link training
for a retimer
[WHY]
Handover from DMUB to driver does not perform link rate toggle.
It might cause link training failure for boot up.
[HOW]
Force toggle rate wa for first link train.
link->vendor_specific_lttpr_link_rate_wa should be zero then.
Cc: stable(a)vger.kernel.org # 6.1+
Reviewed-by: Michael Strauss <michael.strauss(a)amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz(a)amd.com>
Signed-off-by: Zhongwei <zhongwei.zhang(a)amd.com>
Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com>
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_fixed_vs_pe_retimer.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_fixed_vs_pe_retimer.c
index fd8f6f198146..68096d12f52f 100644
--- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_fixed_vs_pe_retimer.c
+++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_fixed_vs_pe_retimer.c
@@ -115,7 +115,7 @@ static enum link_training_result perform_fixed_vs_pe_nontransparent_training_seq
lt_settings->cr_pattern_time = 16000;
/* Fixed VS/PE specific: Toggle link rate */
- apply_toggle_rate_wa = (link->vendor_specific_lttpr_link_rate_wa == target_rate);
+ apply_toggle_rate_wa = ((link->vendor_specific_lttpr_link_rate_wa == target_rate) || (link->vendor_specific_lttpr_link_rate_wa == 0));
target_rate = get_dpcd_link_rate(<_settings->link_settings);
toggle_rate = (target_rate == 0x6) ? 0xA : 0x6;
@@ -271,7 +271,7 @@ enum link_training_result dp_perform_fixed_vs_pe_training_sequence_legacy(
/* Vendor specific: Toggle link rate */
toggle_rate = (rate == 0x6) ? 0xA : 0x6;
- if (link->vendor_specific_lttpr_link_rate_wa == rate) {
+ if (link->vendor_specific_lttpr_link_rate_wa == rate || link->vendor_specific_lttpr_link_rate_wa == 0) {
core_link_write_dpcd(
link,
DP_LINK_BW_SET,
@@ -617,7 +617,7 @@ enum link_training_result dp_perform_fixed_vs_pe_training_sequence(
/* Vendor specific: Toggle link rate */
toggle_rate = (rate == 0x6) ? 0xA : 0x6;
- if (link->vendor_specific_lttpr_link_rate_wa == rate) {
+ if (link->vendor_specific_lttpr_link_rate_wa == rate || link->vendor_specific_lttpr_link_rate_wa == 0) {
core_link_write_dpcd(
link,
DP_LINK_BW_SET,
The patch below does not apply to the 6.7-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.7.y
git checkout FETCH_HEAD
git cherry-pick -x 5a9a2cc8ae1889c4002850b00fd4fd9691dfac4e
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024012752-craving-scale-2cd4@gregkh' --subject-prefix 'PATCH 6.7.y' HEAD^..
Possible dependencies:
5a9a2cc8ae18 ("drm/amd/display: force toggle rate wa for first link training for a retimer")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 5a9a2cc8ae1889c4002850b00fd4fd9691dfac4e Mon Sep 17 00:00:00 2001
From: Zhongwei <zhongwei.zhang(a)amd.com>
Date: Wed, 8 Nov 2023 16:34:36 +0800
Subject: [PATCH] drm/amd/display: force toggle rate wa for first link training
for a retimer
[WHY]
Handover from DMUB to driver does not perform link rate toggle.
It might cause link training failure for boot up.
[HOW]
Force toggle rate wa for first link train.
link->vendor_specific_lttpr_link_rate_wa should be zero then.
Cc: stable(a)vger.kernel.org # 6.1+
Reviewed-by: Michael Strauss <michael.strauss(a)amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz(a)amd.com>
Signed-off-by: Zhongwei <zhongwei.zhang(a)amd.com>
Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com>
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_fixed_vs_pe_retimer.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_fixed_vs_pe_retimer.c
index fd8f6f198146..68096d12f52f 100644
--- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_fixed_vs_pe_retimer.c
+++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_fixed_vs_pe_retimer.c
@@ -115,7 +115,7 @@ static enum link_training_result perform_fixed_vs_pe_nontransparent_training_seq
lt_settings->cr_pattern_time = 16000;
/* Fixed VS/PE specific: Toggle link rate */
- apply_toggle_rate_wa = (link->vendor_specific_lttpr_link_rate_wa == target_rate);
+ apply_toggle_rate_wa = ((link->vendor_specific_lttpr_link_rate_wa == target_rate) || (link->vendor_specific_lttpr_link_rate_wa == 0));
target_rate = get_dpcd_link_rate(<_settings->link_settings);
toggle_rate = (target_rate == 0x6) ? 0xA : 0x6;
@@ -271,7 +271,7 @@ enum link_training_result dp_perform_fixed_vs_pe_training_sequence_legacy(
/* Vendor specific: Toggle link rate */
toggle_rate = (rate == 0x6) ? 0xA : 0x6;
- if (link->vendor_specific_lttpr_link_rate_wa == rate) {
+ if (link->vendor_specific_lttpr_link_rate_wa == rate || link->vendor_specific_lttpr_link_rate_wa == 0) {
core_link_write_dpcd(
link,
DP_LINK_BW_SET,
@@ -617,7 +617,7 @@ enum link_training_result dp_perform_fixed_vs_pe_training_sequence(
/* Vendor specific: Toggle link rate */
toggle_rate = (rate == 0x6) ? 0xA : 0x6;
- if (link->vendor_specific_lttpr_link_rate_wa == rate) {
+ if (link->vendor_specific_lttpr_link_rate_wa == rate || link->vendor_specific_lttpr_link_rate_wa == 0) {
core_link_write_dpcd(
link,
DP_LINK_BW_SET,
The patch below does not apply to the 6.1-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y
git checkout FETCH_HEAD
git cherry-pick -x 40436ce7ccfec5c616e2e48d0ec2c905637c7397
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024012732-empirical-resolved-ebda@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..
Possible dependencies:
40436ce7ccfe ("drm/amd/display: Use DRAM speed from validation for dummy p-state")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 40436ce7ccfec5c616e2e48d0ec2c905637c7397 Mon Sep 17 00:00:00 2001
From: Alvin Lee <alvin.lee2(a)amd.com>
Date: Tue, 7 Nov 2023 17:01:49 -0500
Subject: [PATCH] drm/amd/display: Use DRAM speed from validation for dummy
p-state
[Description]
When choosing which dummy p-state latency to use, we
need to use the DRAM speed from validation. The DRAMSpeed
DML variable can change because we use different input
params to DML when populating watermarks set B.
Cc: stable(a)vger.kernel.org # 6.1+
Reviewed-by: Samson Tam <samson.tam(a)amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz(a)amd.com>
Signed-off-by: Alvin Lee <alvin.lee2(a)amd.com>
Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com>
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index e7f13e28caa3..92e2ddc9ab7e 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -2231,6 +2231,7 @@ void dcn32_calculate_wm_and_dlg_fpu(struct dc *dc, struct dc_state *context,
int i, pipe_idx, vlevel_temp = 0;
double dcfclk = dcn3_2_soc.clock_limits[0].dcfclk_mhz;
double dcfclk_from_validation = context->bw_ctx.dml.vba.DCFCLKState[vlevel][context->bw_ctx.dml.vba.maxMpcComb];
+ double dram_speed_from_validation = context->bw_ctx.dml.vba.DRAMSpeed;
double dcfclk_from_fw_based_mclk_switching = dcfclk_from_validation;
bool pstate_en = context->bw_ctx.dml.vba.DRAMClockChangeSupport[vlevel][context->bw_ctx.dml.vba.maxMpcComb] !=
dm_dram_clock_change_unsupported;
@@ -2418,7 +2419,7 @@ void dcn32_calculate_wm_and_dlg_fpu(struct dc *dc, struct dc_state *context,
}
if (dc->clk_mgr->bw_params->wm_table.nv_entries[WM_C].valid) {
- min_dram_speed_mts = context->bw_ctx.dml.vba.DRAMSpeed;
+ min_dram_speed_mts = dram_speed_from_validation;
min_dram_speed_mts_margin = 160;
context->bw_ctx.dml.soc.dram_clock_change_latency_us =
The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x 40436ce7ccfec5c616e2e48d0ec2c905637c7397
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024012731-patriot-numbness-9887@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..
Possible dependencies:
40436ce7ccfe ("drm/amd/display: Use DRAM speed from validation for dummy p-state")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 40436ce7ccfec5c616e2e48d0ec2c905637c7397 Mon Sep 17 00:00:00 2001
From: Alvin Lee <alvin.lee2(a)amd.com>
Date: Tue, 7 Nov 2023 17:01:49 -0500
Subject: [PATCH] drm/amd/display: Use DRAM speed from validation for dummy
p-state
[Description]
When choosing which dummy p-state latency to use, we
need to use the DRAM speed from validation. The DRAMSpeed
DML variable can change because we use different input
params to DML when populating watermarks set B.
Cc: stable(a)vger.kernel.org # 6.1+
Reviewed-by: Samson Tam <samson.tam(a)amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz(a)amd.com>
Signed-off-by: Alvin Lee <alvin.lee2(a)amd.com>
Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com>
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index e7f13e28caa3..92e2ddc9ab7e 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -2231,6 +2231,7 @@ void dcn32_calculate_wm_and_dlg_fpu(struct dc *dc, struct dc_state *context,
int i, pipe_idx, vlevel_temp = 0;
double dcfclk = dcn3_2_soc.clock_limits[0].dcfclk_mhz;
double dcfclk_from_validation = context->bw_ctx.dml.vba.DCFCLKState[vlevel][context->bw_ctx.dml.vba.maxMpcComb];
+ double dram_speed_from_validation = context->bw_ctx.dml.vba.DRAMSpeed;
double dcfclk_from_fw_based_mclk_switching = dcfclk_from_validation;
bool pstate_en = context->bw_ctx.dml.vba.DRAMClockChangeSupport[vlevel][context->bw_ctx.dml.vba.maxMpcComb] !=
dm_dram_clock_change_unsupported;
@@ -2418,7 +2419,7 @@ void dcn32_calculate_wm_and_dlg_fpu(struct dc *dc, struct dc_state *context,
}
if (dc->clk_mgr->bw_params->wm_table.nv_entries[WM_C].valid) {
- min_dram_speed_mts = context->bw_ctx.dml.vba.DRAMSpeed;
+ min_dram_speed_mts = dram_speed_from_validation;
min_dram_speed_mts_margin = 160;
context->bw_ctx.dml.soc.dram_clock_change_latency_us =
The patch below does not apply to the 6.7-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.7.y
git checkout FETCH_HEAD
git cherry-pick -x 40436ce7ccfec5c616e2e48d0ec2c905637c7397
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024012730-defective-tapering-6fc3@gregkh' --subject-prefix 'PATCH 6.7.y' HEAD^..
Possible dependencies:
40436ce7ccfe ("drm/amd/display: Use DRAM speed from validation for dummy p-state")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 40436ce7ccfec5c616e2e48d0ec2c905637c7397 Mon Sep 17 00:00:00 2001
From: Alvin Lee <alvin.lee2(a)amd.com>
Date: Tue, 7 Nov 2023 17:01:49 -0500
Subject: [PATCH] drm/amd/display: Use DRAM speed from validation for dummy
p-state
[Description]
When choosing which dummy p-state latency to use, we
need to use the DRAM speed from validation. The DRAMSpeed
DML variable can change because we use different input
params to DML when populating watermarks set B.
Cc: stable(a)vger.kernel.org # 6.1+
Reviewed-by: Samson Tam <samson.tam(a)amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz(a)amd.com>
Signed-off-by: Alvin Lee <alvin.lee2(a)amd.com>
Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com>
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index e7f13e28caa3..92e2ddc9ab7e 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -2231,6 +2231,7 @@ void dcn32_calculate_wm_and_dlg_fpu(struct dc *dc, struct dc_state *context,
int i, pipe_idx, vlevel_temp = 0;
double dcfclk = dcn3_2_soc.clock_limits[0].dcfclk_mhz;
double dcfclk_from_validation = context->bw_ctx.dml.vba.DCFCLKState[vlevel][context->bw_ctx.dml.vba.maxMpcComb];
+ double dram_speed_from_validation = context->bw_ctx.dml.vba.DRAMSpeed;
double dcfclk_from_fw_based_mclk_switching = dcfclk_from_validation;
bool pstate_en = context->bw_ctx.dml.vba.DRAMClockChangeSupport[vlevel][context->bw_ctx.dml.vba.maxMpcComb] !=
dm_dram_clock_change_unsupported;
@@ -2418,7 +2419,7 @@ void dcn32_calculate_wm_and_dlg_fpu(struct dc *dc, struct dc_state *context,
}
if (dc->clk_mgr->bw_params->wm_table.nv_entries[WM_C].valid) {
- min_dram_speed_mts = context->bw_ctx.dml.vba.DRAMSpeed;
+ min_dram_speed_mts = dram_speed_from_validation;
min_dram_speed_mts_margin = 160;
context->bw_ctx.dml.soc.dram_clock_change_latency_us =