[PATCH 00/11] DC Patches Aug 13, 2025

[PATCH 00/11] DC Patches Aug 13, 2025

[Alex Hung]

This DC patchset brings improvements in multiple areas. In summary, we
have:

* Fix Xorg desktop unresponsive on Replay panel
* Refector by optimizing functions and deleting unused code
* Attach privacy screen to DRM connector
* Other misc improvement

Cc: Daniel Wheeler <daniel.wheeler@amd.com>

Austin Zheng (1):
  drm/amd/display: Setup Second Stutter Watermark Implementation

Clay King (1):
  drm/amd/display: Delete unused functions

Lohita Mudimela (1):
  drm/amd/display: Refactor DPP enum for backwards compatibility

Mario Limonciello (3):
  drm/amd/display: Optimize amdgpu_dm_atomic_commit_tail()
  drm/amd/display: Attach privacy screen to DRM connector
  drm/amd/display: Avoid a NULL pointer dereference

Rafal Ostrowski (2):
  drm/amd/display: Add LSDMA Linear Sub Window Copy support
  drm/amd/display: Align LSDMA commands fields

Taimur Hassan (2):
  drm/amd/display: [FW Promotion] Release 0.1.23.0
  drm/amd/display: Promote DC to 3.2.346

Tom Chung (1):
  drm/amd/display: Fix Xorg desktop unresponsive on Replay panel

 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 142 ++++++++++--------
 .../amd/display/amdgpu_dm/amdgpu_dm_crtc.c    |  19 +++
 drivers/gpu/drm/amd/display/dc/dc.h           |  11 +-
 drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c  |  70 +++++++--
 drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h  |  36 ++++-
 .../dc/dml2/dml21/dml21_translation_helper.c  |   2 +
 .../dml2/dml21/inc/dml_top_dchub_registers.h  |   2 +
 .../dml21/inc/dml_top_soc_parameter_types.h   |   2 +
 .../display/dc/dml2/dml21/inc/dml_top_types.h |   2 +
 .../src/dml2_core/dml2_core_shared_types.h    |  12 ++
 .../amd/display/dc/dpp/dcn401/dcn401_dpp.h    |  10 ++
 .../display/dc/dpp/dcn401/dcn401_dpp_dscl.c   |  36 ++---
 drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h   |  15 --
 .../amd/display/dc/mpc/dcn401/dcn401_mpc.c    |   8 -
 .../amd/display/dc/mpc/dcn401/dcn401_mpc.h    |   5 -
 .../gpu/drm/amd/display/dmub/inc/dmub_cmd.h   |  21 ++-
 16 files changed, 265 insertions(+), 128 deletions(-)

-- 
2.43.0

[PATCH 01/11] drm/amd/display: Add LSDMA Linear Sub Window Copy support

[Alex Hung]

From: Rafal Ostrowski <rostrows@amd.com>

[WHAT]
Add support for LSDMA Linear Sub Window Copy command.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Rafal Ostrowski <rostrows@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
---
 drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 58 ++++++++++++++++++--
 drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h | 36 +++++++++++-
 2 files changed, 88 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
index 714c468c010d..55b362196612 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
+++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
@@ -2010,11 +2010,12 @@ bool dmub_lsdma_init(struct dc_dmub_srv *dc_dmub_srv)
 	return result;
 }
 
-bool dmub_lsdma_send_linear_copy_packet(
+bool dmub_lsdma_send_linear_copy_command(
 	struct dc_dmub_srv *dc_dmub_srv,
 	uint64_t src_addr,
 	uint64_t dst_addr,
-	uint32_t count)
+	uint32_t count
+)
 {
 	struct dc_context *dc_ctx = dc_dmub_srv->ctx;
 	union dmub_rb_cmd cmd;
@@ -2042,9 +2043,54 @@ bool dmub_lsdma_send_linear_copy_packet(
 	return result;
 }
 
+bool dmub_lsdma_send_linear_sub_window_copy_command(
+	struct dc_dmub_srv *dc_dmub_srv,
+	struct lsdma_linear_sub_window_copy_params copy_data
+)
+{
+	struct dc_context *dc_ctx = dc_dmub_srv->ctx;
+	union dmub_rb_cmd cmd;
+	enum dm_dmub_wait_type wait_type;
+	struct dmub_cmd_lsdma_data *lsdma_data = &cmd.lsdma.lsdma_data;
+	bool result;
+
+	memset(&cmd, 0, sizeof(cmd));
+
+	cmd.cmd_common.header.type     = DMUB_CMD__LSDMA;
+	cmd.cmd_common.header.sub_type = DMUB_CMD__LSDMA_LINEAR_SUB_WINDOW_COPY;
+	wait_type                      = DM_DMUB_WAIT_TYPE_NO_WAIT;
+
+	lsdma_data->u.linear_sub_window_copy_data.tmz              = copy_data.tmz;
+	lsdma_data->u.linear_sub_window_copy_data.element_size     = copy_data.element_size;
+	lsdma_data->u.linear_sub_window_copy_data.src_lo           = copy_data.src_lo;
+	lsdma_data->u.linear_sub_window_copy_data.src_hi           = copy_data.src_hi;
+	lsdma_data->u.linear_sub_window_copy_data.src_x            = copy_data.src_x;
+	lsdma_data->u.linear_sub_window_copy_data.src_y            = copy_data.src_y;
+	lsdma_data->u.linear_sub_window_copy_data.src_pitch        = copy_data.src_pitch - 1;
+	lsdma_data->u.linear_sub_window_copy_data.src_slice_pitch  = copy_data.src_slice_pitch - 1;
+	lsdma_data->u.linear_sub_window_copy_data.dst_lo           = copy_data.dst_lo;
+	lsdma_data->u.linear_sub_window_copy_data.dst_hi           = copy_data.dst_hi;
+	lsdma_data->u.linear_sub_window_copy_data.dst_x            = copy_data.dst_x;
+	lsdma_data->u.linear_sub_window_copy_data.dst_y            = copy_data.dst_y;
+	lsdma_data->u.linear_sub_window_copy_data.dst_pitch        = copy_data.dst_pitch - 1;
+	lsdma_data->u.linear_sub_window_copy_data.dst_slice_pitch  = copy_data.dst_slice_pitch - 1;
+	lsdma_data->u.linear_sub_window_copy_data.rect_x           = copy_data.rect_x - 1;
+	lsdma_data->u.linear_sub_window_copy_data.rect_y           = copy_data.rect_y - 1;
+	lsdma_data->u.linear_sub_window_copy_data.src_cache_policy = copy_data.src_cache_policy;
+	lsdma_data->u.linear_sub_window_copy_data.dst_cache_policy = copy_data.dst_cache_policy;
+
+	result = dc_wake_and_execute_dmub_cmd(dc_ctx, &cmd, wait_type);
+
+	if (!result)
+		DC_ERROR("LSDMA Linear Sub Window Copy failed in DMUB");
+
+	return result;
+}
+
 bool dmub_lsdma_send_tiled_to_tiled_copy_command(
 	struct dc_dmub_srv *dc_dmub_srv,
-	struct lsdma_send_tiled_to_tiled_copy_command_params params)
+	struct lsdma_send_tiled_to_tiled_copy_command_params params
+)
 {
 	struct dc_context *dc_ctx = dc_dmub_srv->ctx;
 	union dmub_rb_cmd cmd;
@@ -2097,7 +2143,8 @@ bool dmub_lsdma_send_pio_copy_command(
 	uint64_t src_addr,
 	uint64_t dst_addr,
 	uint32_t byte_count,
-	uint32_t overlap_disable)
+	uint32_t overlap_disable
+)
 {
 	struct dc_context *dc_ctx = dc_dmub_srv->ctx;
 	union dmub_rb_cmd cmd;
@@ -2130,7 +2177,8 @@ bool dmub_lsdma_send_pio_constfill_command(
 	struct dc_dmub_srv *dc_dmub_srv,
 	uint64_t dst_addr,
 	uint32_t byte_count,
-	uint32_t data)
+	uint32_t data
+)
 {
 	struct dc_context *dc_ctx = dc_dmub_srv->ctx;
 	union dmub_rb_cmd cmd;
diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h
index 8ea320f21269..7ef93444ef3c 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h
@@ -211,11 +211,45 @@ void dc_dmub_srv_fams2_passthrough_flip(
 		int surface_count);
 
 bool dmub_lsdma_init(struct dc_dmub_srv *dc_dmub_srv);
-bool dmub_lsdma_send_linear_copy_packet(
+bool dmub_lsdma_send_linear_copy_command(
 	struct dc_dmub_srv *dc_dmub_srv,
 	uint64_t src_addr,
 	uint64_t dst_addr,
 	uint32_t count);
+
+struct lsdma_linear_sub_window_copy_params {
+	uint32_t src_lo;
+	uint32_t src_hi;
+
+	uint32_t dst_lo;
+	uint32_t dst_hi;
+
+	uint32_t src_x        : 16;
+	uint32_t src_y        : 16;
+
+	uint32_t dst_x        : 16;
+	uint32_t dst_y        : 16;
+
+	uint32_t rect_x       : 16;
+	uint32_t rect_y       : 16;
+
+	uint32_t src_pitch    : 16;
+	uint32_t dst_pitch    : 16;
+
+	uint32_t src_slice_pitch;
+	uint32_t dst_slice_pitch;
+
+	uint32_t tmz              : 1;
+	uint32_t element_size     : 3;
+	uint32_t src_cache_policy : 3;
+	uint32_t dst_cache_policy : 3;
+	uint32_t padding          : 22;
+};
+
+bool dmub_lsdma_send_linear_sub_window_copy_command(
+	struct dc_dmub_srv *dc_dmub_srv,
+	struct lsdma_linear_sub_window_copy_params copy_data
+);
 bool dmub_lsdma_send_pio_copy_command(
 	struct dc_dmub_srv *dc_dmub_srv,
 	uint64_t src_addr,
-- 
2.43.0

[PATCH 02/11] drm/amd/display: Refactor DPP enum for backwards compatibility

[Alex Hung]

From: Lohita Mudimela <lohita.mudimela@amd.com>

[WHY]
Conflict for enum type in DPP source files.

[HOW]
Refactor DPP source files to resolve the enum conflicts.

Reviewed-by: Ilya Bakoulin <ilya.bakoulin@amd.com>
Reviewed-by: Martin Leung <martin.leung@amd.com>
Signed-off-by: Lohita Mudimela <lohita.mudimela@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
---
 .../amd/display/dc/dpp/dcn401/dcn401_dpp.h    | 10 ++++++
 .../display/dc/dpp/dcn401/dcn401_dpp_dscl.c   | 36 +++++++------------
 2 files changed, 23 insertions(+), 23 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dpp/dcn401/dcn401_dpp.h b/drivers/gpu/drm/amd/display/dc/dpp/dcn401/dcn401_dpp.h
index 5a6a861402b3..5f6b431ec398 100644
--- a/drivers/gpu/drm/amd/display/dc/dpp/dcn401/dcn401_dpp.h
+++ b/drivers/gpu/drm/amd/display/dc/dpp/dcn401/dcn401_dpp.h
@@ -673,6 +673,16 @@ struct dcn401_dpp {
 	struct pwl_params pwl_data;
 };
 
+enum dcn401_dscl_mode_sel {
+	DCN401_DSCL_MODE_SCALING_444_BYPASS = 0,
+	DCN401_DSCL_MODE_SCALING_444_RGB_ENABLE = 1,
+	DCN401_DSCL_MODE_SCALING_444_YCBCR_ENABLE = 2,
+	DCN401_DSCL_MODE_SCALING_420_YCBCR_ENABLE = 3,
+	DCN401_DSCL_MODE_SCALING_420_LUMA_BYPASS = 4,
+	DCN401_DSCL_MODE_SCALING_420_CHROMA_BYPASS = 5,
+	DCN401_DSCL_MODE_DSCL_BYPASS = 6
+};
+
 bool dpp401_construct(struct dcn401_dpp *dpp401,
 	struct dc_context *ctx,
 	uint32_t inst,
diff --git a/drivers/gpu/drm/amd/display/dc/dpp/dcn401/dcn401_dpp_dscl.c b/drivers/gpu/drm/amd/display/dc/dpp/dcn401/dcn401_dpp_dscl.c
index 2f92e7d4981b..6df3419f825f 100644
--- a/drivers/gpu/drm/amd/display/dc/dpp/dcn401/dcn401_dpp_dscl.c
+++ b/drivers/gpu/drm/amd/display/dc/dpp/dcn401/dcn401_dpp_dscl.c
@@ -78,16 +78,6 @@ enum dscl_autocal_mode {
 	AUTOCAL_MODE_AUTOREPLICATE = 3
 };
 
-enum dscl_mode_sel {
-	DSCL_MODE_SCALING_444_BYPASS = 0,
-	DSCL_MODE_SCALING_444_RGB_ENABLE = 1,
-	DSCL_MODE_SCALING_444_YCBCR_ENABLE = 2,
-	DSCL_MODE_SCALING_420_YCBCR_ENABLE = 3,
-	DSCL_MODE_SCALING_420_LUMA_BYPASS = 4,
-	DSCL_MODE_SCALING_420_CHROMA_BYPASS = 5,
-	DSCL_MODE_DSCL_BYPASS = 6
-};
-
 static int dpp401_dscl_get_pixel_depth_val(enum lb_pixel_depth depth)
 {
 	if (depth == LB_PIXEL_DEPTH_30BPP)
@@ -122,7 +112,7 @@ static bool dpp401_dscl_is_420_format(enum pixel_format format)
 		return false;
 }
 
-static enum dscl_mode_sel dpp401_dscl_get_dscl_mode(
+static enum dcn401_dscl_mode_sel dpp401_dscl_get_dscl_mode(
 		struct dpp *dpp_base,
 		const struct scaler_data *data,
 		bool dbg_always_scale)
@@ -132,7 +122,7 @@ static enum dscl_mode_sel dpp401_dscl_get_dscl_mode(
 	if (dpp_base->caps->dscl_data_proc_format == DSCL_DATA_PRCESSING_FIXED_FORMAT) {
 		/* DSCL is processing data in fixed format */
 		if (data->format == PIXEL_FORMAT_FP16)
-			return DSCL_MODE_DSCL_BYPASS;
+			return DCN401_DSCL_MODE_DSCL_BYPASS;
 	}
 
 	if (data->ratios.horz.value == one
@@ -140,20 +130,20 @@ static enum dscl_mode_sel dpp401_dscl_get_dscl_mode(
 			&& data->ratios.horz_c.value == one
 			&& data->ratios.vert_c.value == one
 			&& !dbg_always_scale)
-		return DSCL_MODE_SCALING_444_BYPASS;
+		return DCN401_DSCL_MODE_SCALING_444_BYPASS;
 
 	if (!dpp401_dscl_is_420_format(data->format)) {
 		if (dpp401_dscl_is_video_format(data->format))
-			return DSCL_MODE_SCALING_444_YCBCR_ENABLE;
+			return DCN401_DSCL_MODE_SCALING_444_YCBCR_ENABLE;
 		else
-			return DSCL_MODE_SCALING_444_RGB_ENABLE;
+			return DCN401_DSCL_MODE_SCALING_444_RGB_ENABLE;
 	}
 	if (data->ratios.horz.value == one && data->ratios.vert.value == one)
-		return DSCL_MODE_SCALING_420_LUMA_BYPASS;
+		return DCN401_DSCL_MODE_SCALING_420_LUMA_BYPASS;
 	if (data->ratios.horz_c.value == one && data->ratios.vert_c.value == one)
-		return DSCL_MODE_SCALING_420_CHROMA_BYPASS;
+		return DCN401_DSCL_MODE_SCALING_420_CHROMA_BYPASS;
 
-	return DSCL_MODE_SCALING_420_YCBCR_ENABLE;
+	return DCN401_DSCL_MODE_SCALING_420_YCBCR_ENABLE;
 }
 
 static void dpp401_power_on_dscl(
@@ -1071,7 +1061,7 @@ void dpp401_dscl_set_scaler_manual_scale(struct dpp *dpp_base,
 	uint32_t v_num_taps_c = scl_data->taps.v_taps_c - 1;
 	uint32_t h_num_taps = scl_data->taps.h_taps - 1;
 	uint32_t h_num_taps_c = scl_data->taps.h_taps_c - 1;
-	enum dscl_mode_sel dscl_mode = dpp401_dscl_get_dscl_mode(
+	enum dcn401_dscl_mode_sel dscl_mode = dpp401_dscl_get_dscl_mode(
 			dpp_base, scl_data, dpp_base->ctx->dc->debug.always_scale);
 	bool ycbcr = scl_data->format >= PIXEL_FORMAT_VIDEO_BEGIN
 				&& scl_data->format <= PIXEL_FORMAT_VIDEO_END;
@@ -1102,7 +1092,7 @@ void dpp401_dscl_set_scaler_manual_scale(struct dpp *dpp_base,
 	dpp->scl_data = *scl_data;
 
 	if ((dpp->base.ctx->dc->config.use_spl) && (!dpp->base.ctx->dc->debug.disable_spl)) {
-		dscl_mode = (enum dscl_mode_sel) scl_data->dscl_prog_data.dscl_mode;
+		dscl_mode = (enum dcn401_dscl_mode_sel) scl_data->dscl_prog_data.dscl_mode;
 		rect = (struct rect *)&scl_data->dscl_prog_data.recout;
 		mpc_width = scl_data->dscl_prog_data.mpc_size.width;
 		mpc_height = scl_data->dscl_prog_data.mpc_size.height;
@@ -1112,7 +1102,7 @@ void dpp401_dscl_set_scaler_manual_scale(struct dpp *dpp_base,
 		h_num_taps_c = scl_data->dscl_prog_data.taps.h_taps_c;
 	}
 	if (dpp_base->ctx->dc->debug.enable_mem_low_power.bits.dscl) {
-		if (dscl_mode != DSCL_MODE_DSCL_BYPASS)
+		if (dscl_mode != DCN401_DSCL_MODE_DSCL_BYPASS)
 			dpp401_power_on_dscl(dpp_base, true);
 	}
 
@@ -1139,7 +1129,7 @@ void dpp401_dscl_set_scaler_manual_scale(struct dpp *dpp_base,
 	/* SCL mode */
 	REG_UPDATE(SCL_MODE, DSCL_MODE, dscl_mode);
 
-	if (dscl_mode == DSCL_MODE_DSCL_BYPASS) {
+	if (dscl_mode == DCN401_DSCL_MODE_DSCL_BYPASS) {
 		if (dpp_base->ctx->dc->debug.enable_mem_low_power.bits.dscl)
 			dpp401_power_on_dscl(dpp_base, false);
 		return;
@@ -1149,7 +1139,7 @@ void dpp401_dscl_set_scaler_manual_scale(struct dpp *dpp_base,
 	lb_config =  dpp401_dscl_find_lb_memory_config(dpp, scl_data);
 	dpp401_dscl_set_lb(dpp, &scl_data->lb_params, lb_config);
 
-	if (dscl_mode == DSCL_MODE_SCALING_444_BYPASS) {
+	if (dscl_mode == DCN401_DSCL_MODE_SCALING_444_BYPASS) {
 		if (dpp->base.ctx->dc->config.prefer_easf)
 			dpp401_dscl_disable_easf(dpp_base, scl_data);
 		dpp401_dscl_program_isharp(dpp_base, scl_data, program_isharp_1dlut, &bs_coeffs_updated);
-- 
2.43.0

[PATCH 03/11] drm/amd/display: Optimize amdgpu_dm_atomic_commit_tail()

[Alex Hung]

From: Mario Limonciello <mario.limonciello@amd.com>

[WHY]
The first two loops of for_each_oldnew_connector_in_state() both operate
on an HDCP queue.  If one isn't setup then each connector is iterated but
skipped TWICE.  This is wasteful for the majority of cases.

[HOW]
Combine the two HDCP related loops of for_each_oldnew_connector_in_state()
and check for the HDCP workqueue before even running either of them. This
should avoid running the functions in most cases, and if HDCP is setup only
run once.

Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 116 +++++++++---------
 1 file changed, 55 insertions(+), 61 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 c0d31c26850d..e8cfae2bd2ae 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -10129,69 +10129,40 @@ static void dm_set_writeback(struct amdgpu_display_manager *dm,
 	drm_writeback_queue_job(wb_conn, new_con_state);
 }
 
-/**
- * amdgpu_dm_atomic_commit_tail() - AMDgpu DM's commit tail implementation.
- * @state: The atomic state to commit
- *
- * This will tell DC to commit the constructed DC state from atomic_check,
- * programming the hardware. Any failures here implies a hardware failure, since
- * atomic check should have filtered anything non-kosher.
- */
-static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
+static void amdgpu_dm_update_hdcp(struct drm_atomic_state *state)
 {
+	struct drm_connector_state *old_con_state, *new_con_state;
 	struct drm_device *dev = state->dev;
-	struct amdgpu_device *adev = drm_to_adev(dev);
-	struct amdgpu_display_manager *dm = &adev->dm;
-	struct dm_atomic_state *dm_state;
-	struct dc_state *dc_state = NULL;
-	u32 i, j;
-	struct drm_crtc *crtc;
-	struct drm_crtc_state *old_crtc_state, *new_crtc_state;
-	unsigned long flags;
-	bool wait_for_vblank = true;
 	struct drm_connector *connector;
-	struct drm_connector_state *old_con_state, *new_con_state;
-	struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
-	int crtc_disable_count = 0;
-
-	trace_amdgpu_dm_atomic_commit_tail_begin(state);
-
-	drm_atomic_helper_update_legacy_modeset_state(dev, state);
-	drm_dp_mst_atomic_wait_for_dependencies(state);
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	int i;
 
-	dm_state = dm_atomic_get_new_state(state);
-	if (dm_state && dm_state->context) {
-		dc_state = dm_state->context;
-		amdgpu_dm_commit_streams(state, dc_state);
-	}
+	if (!adev->dm.hdcp_workqueue)
+		return;
 
 	for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
 		struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
 		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
+		struct drm_crtc_state *old_crtc_state, *new_crtc_state;
+		struct dm_crtc_state *dm_new_crtc_state;
 		struct amdgpu_dm_connector *aconnector;
 
-		if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
+		if (!connector || connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
 			continue;
 
 		aconnector = to_amdgpu_dm_connector(connector);
 
-		if (!adev->dm.hdcp_workqueue)
-			continue;
-
-		pr_debug("[HDCP_DM] -------------- i : %x ----------\n", i);
-
-		if (!connector)
-			continue;
+		drm_dbg(dev, "[HDCP_DM] -------------- i : %x ----------\n", i);
 
-		pr_debug("[HDCP_DM] connector->index: %x connect_status: %x dpms: %x\n",
+		drm_dbg(dev, "[HDCP_DM] connector->index: %x connect_status: %x dpms: %x\n",
 			connector->index, connector->status, connector->dpms);
-		pr_debug("[HDCP_DM] state protection old: %x new: %x\n",
+		drm_dbg(dev, "[HDCP_DM] state protection old: %x new: %x\n",
 			old_con_state->content_protection, new_con_state->content_protection);
 
 		if (aconnector->dc_sink) {
 			if (aconnector->dc_sink->sink_signal != SIGNAL_TYPE_VIRTUAL &&
 				aconnector->dc_sink->sink_signal != SIGNAL_TYPE_NONE) {
-				pr_debug("[HDCP_DM] pipe_ctx dispname=%s\n",
+				drm_dbg(dev, "[HDCP_DM] pipe_ctx dispname=%s\n",
 				aconnector->dc_sink->edid_caps.display_name);
 			}
 		}
@@ -10205,7 +10176,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
 		}
 
 		if (old_crtc_state)
-			pr_debug("old crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n",
+			drm_dbg(dev, "old crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n",
 			old_crtc_state->enable,
 			old_crtc_state->active,
 			old_crtc_state->mode_changed,
@@ -10213,29 +10184,13 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
 			old_crtc_state->connectors_changed);
 
 		if (new_crtc_state)
-			pr_debug("NEW crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n",
+			drm_dbg(dev, "NEW crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n",
 			new_crtc_state->enable,
 			new_crtc_state->active,
 			new_crtc_state->mode_changed,
 			new_crtc_state->active_changed,
 			new_crtc_state->connectors_changed);
-	}
 
-	for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
-		struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
-		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
-		struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
-
-		if (!adev->dm.hdcp_workqueue)
-			continue;
-
-		new_crtc_state = NULL;
-		old_crtc_state = NULL;
-
-		if (acrtc) {
-			new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
-			old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base);
-		}
 
 		dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
 
@@ -10279,7 +10234,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
 				new_con_state->content_protection >= DRM_MODE_CONTENT_PROTECTION_DESIRED)
 				enable_encryption = true;
 
-			drm_info(adev_to_drm(adev), "[HDCP_DM] hdcp_update_display enable_encryption = %x\n", enable_encryption);
+			drm_info(dev, "[HDCP_DM] hdcp_update_display enable_encryption = %x\n", enable_encryption);
 
 			if (aconnector->dc_link)
 				hdcp_update_display(
@@ -10287,6 +10242,45 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
 					new_con_state->hdcp_content_type, enable_encryption);
 		}
 	}
+}
+
+/**
+ * amdgpu_dm_atomic_commit_tail() - AMDgpu DM's commit tail implementation.
+ * @state: The atomic state to commit
+ *
+ * This will tell DC to commit the constructed DC state from atomic_check,
+ * programming the hardware. Any failures here implies a hardware failure, since
+ * atomic check should have filtered anything non-kosher.
+ */
+static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
+{
+	struct drm_device *dev = state->dev;
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct amdgpu_display_manager *dm = &adev->dm;
+	struct dm_atomic_state *dm_state;
+	struct dc_state *dc_state = NULL;
+	u32 i, j;
+	struct drm_crtc *crtc;
+	struct drm_crtc_state *old_crtc_state, *new_crtc_state;
+	unsigned long flags;
+	bool wait_for_vblank = true;
+	struct drm_connector *connector;
+	struct drm_connector_state *old_con_state, *new_con_state;
+	struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
+	int crtc_disable_count = 0;
+
+	trace_amdgpu_dm_atomic_commit_tail_begin(state);
+
+	drm_atomic_helper_update_legacy_modeset_state(dev, state);
+	drm_dp_mst_atomic_wait_for_dependencies(state);
+
+	dm_state = dm_atomic_get_new_state(state);
+	if (dm_state && dm_state->context) {
+		dc_state = dm_state->context;
+		amdgpu_dm_commit_streams(state, dc_state);
+	}
+
+	amdgpu_dm_update_hdcp(state);
 
 	/* Handle connector state changes */
 	for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
-- 
2.43.0

[PATCH 04/11] drm/amd/display: Delete unused functions

[Alex Hung]

From: Clay King <clayking@amd.com>

[WHAT]
Removing unused code

Reviewed-by: Joshua Aberback <joshua.aberback@amd.com>
Signed-off-by: Clay King <clayking@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
---
 drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h       | 15 ---------------
 .../drm/amd/display/dc/mpc/dcn401/dcn401_mpc.c    |  8 --------
 .../drm/amd/display/dc/mpc/dcn401/dcn401_mpc.h    |  5 -----
 3 files changed, 28 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h b/drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h
index 14f0304e3eb9..22960ee03dee 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h
@@ -1069,21 +1069,6 @@ struct mpc_funcs {
 	*/
 	void (*program_lut_mode)(struct mpc *mpc, const enum MCM_LUT_ID id, const enum MCM_LUT_XABLE xable,
 			bool lut_bank_a, int mpcc_id);
-	/**
-	* @program_3dlut_size:
-	*
-	* Program 3D LUT size.
-	*
-	* Parameters:
-	* - [in/out] mpc - MPC context.
-	* - [in] is_17x17x17 - is 3dlut 17x17x17
-	* - [in] mpcc_id
-	*
-	* Return:
-	*
-	* void
-	*/
-	void (*program_3dlut_size)(struct mpc *mpc, bool is_17x17x17, int mpcc_id);
 
 	/**
 	 * @mcm:
diff --git a/drivers/gpu/drm/amd/display/dc/mpc/dcn401/dcn401_mpc.c b/drivers/gpu/drm/amd/display/dc/mpc/dcn401/dcn401_mpc.c
index f3fb3fe13757..e1a0308dee57 100644
--- a/drivers/gpu/drm/amd/display/dc/mpc/dcn401/dcn401_mpc.c
+++ b/drivers/gpu/drm/amd/display/dc/mpc/dcn401/dcn401_mpc.c
@@ -287,13 +287,6 @@ void mpc401_program_lut_read_write_control(struct mpc *mpc, const enum MCM_LUT_I
 	}
 }
 
-void mpc401_program_3dlut_size(struct mpc *mpc, bool is_17x17x17, int mpcc_id)
-{
-	struct dcn401_mpc *mpc401 = TO_DCN401_MPC(mpc);
-
-	REG_UPDATE(MPCC_MCM_3DLUT_MODE[mpcc_id], MPCC_MCM_3DLUT_SIZE, is_17x17x17 ? 0 : 1);
-}
-
 void mpc_program_gamut_remap(
 	struct mpc *mpc,
 	unsigned int mpcc_id,
@@ -611,7 +604,6 @@ static const struct mpc_funcs dcn401_mpc_funcs = {
 	.populate_lut = mpc401_populate_lut,
 	.program_lut_read_write_control = mpc401_program_lut_read_write_control,
 	.program_lut_mode = mpc401_program_lut_mode,
-	.program_3dlut_size = mpc401_program_3dlut_size,
 };
 
 
diff --git a/drivers/gpu/drm/amd/display/dc/mpc/dcn401/dcn401_mpc.h b/drivers/gpu/drm/amd/display/dc/mpc/dcn401/dcn401_mpc.h
index eb0c68d0b0c7..fdc42f8ab3ff 100644
--- a/drivers/gpu/drm/amd/display/dc/mpc/dcn401/dcn401_mpc.h
+++ b/drivers/gpu/drm/amd/display/dc/mpc/dcn401/dcn401_mpc.h
@@ -221,11 +221,6 @@ void mpc401_program_lut_read_write_control(
 		bool lut_bank_a,
 		int mpcc_id);
 
-void mpc401_program_3dlut_size(
-		struct mpc *mpc,
-		bool is_17x17x17,
-		int mpcc_id);
-
 void mpc401_set_gamut_remap(
 	struct mpc *mpc,
 	int mpcc_id,
-- 
2.43.0

[PATCH 05/11] drm/amd/display: Align LSDMA commands fields

[Alex Hung]

From: Rafal Ostrowski <rostrows@amd.com>

[WHY]
DC LSDMA functions had to remember to extract 1 from several fields
to be compliant with DMUB LSDMA commands interface.
Now this logic is moved to DMUB.

[HOW]
Moved extraction by 1 in several fields of LSDMA commands to DMUB.
Changed DC to not do it.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Rafal Ostrowski <rostrows@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
---
 drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 24 ++++++++++----------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
index 55b362196612..53a088ebddef 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
+++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
@@ -2066,16 +2066,16 @@ bool dmub_lsdma_send_linear_sub_window_copy_command(
 	lsdma_data->u.linear_sub_window_copy_data.src_hi           = copy_data.src_hi;
 	lsdma_data->u.linear_sub_window_copy_data.src_x            = copy_data.src_x;
 	lsdma_data->u.linear_sub_window_copy_data.src_y            = copy_data.src_y;
-	lsdma_data->u.linear_sub_window_copy_data.src_pitch        = copy_data.src_pitch - 1;
-	lsdma_data->u.linear_sub_window_copy_data.src_slice_pitch  = copy_data.src_slice_pitch - 1;
+	lsdma_data->u.linear_sub_window_copy_data.src_pitch        = copy_data.src_pitch;
+	lsdma_data->u.linear_sub_window_copy_data.src_slice_pitch  = copy_data.src_slice_pitch;
 	lsdma_data->u.linear_sub_window_copy_data.dst_lo           = copy_data.dst_lo;
 	lsdma_data->u.linear_sub_window_copy_data.dst_hi           = copy_data.dst_hi;
 	lsdma_data->u.linear_sub_window_copy_data.dst_x            = copy_data.dst_x;
 	lsdma_data->u.linear_sub_window_copy_data.dst_y            = copy_data.dst_y;
-	lsdma_data->u.linear_sub_window_copy_data.dst_pitch        = copy_data.dst_pitch - 1;
-	lsdma_data->u.linear_sub_window_copy_data.dst_slice_pitch  = copy_data.dst_slice_pitch - 1;
-	lsdma_data->u.linear_sub_window_copy_data.rect_x           = copy_data.rect_x - 1;
-	lsdma_data->u.linear_sub_window_copy_data.rect_y           = copy_data.rect_y - 1;
+	lsdma_data->u.linear_sub_window_copy_data.dst_pitch        = copy_data.dst_pitch;
+	lsdma_data->u.linear_sub_window_copy_data.dst_slice_pitch  = copy_data.dst_slice_pitch;
+	lsdma_data->u.linear_sub_window_copy_data.rect_x           = copy_data.rect_x;
+	lsdma_data->u.linear_sub_window_copy_data.rect_y           = copy_data.rect_y;
 	lsdma_data->u.linear_sub_window_copy_data.src_cache_policy = copy_data.src_cache_policy;
 	lsdma_data->u.linear_sub_window_copy_data.dst_cache_policy = copy_data.dst_cache_policy;
 
@@ -2112,20 +2112,20 @@ bool dmub_lsdma_send_tiled_to_tiled_copy_command(
 	lsdma_data->u.tiled_copy_data.src_y            = params.src_y;
 	lsdma_data->u.tiled_copy_data.dst_x            = params.dst_x;
 	lsdma_data->u.tiled_copy_data.dst_y            = params.dst_y;
-	lsdma_data->u.tiled_copy_data.src_width        = params.src_width - 1; // LSDMA controller expects width -1
-	lsdma_data->u.tiled_copy_data.dst_width        = params.dst_width - 1; // LSDMA controller expects width -1
+	lsdma_data->u.tiled_copy_data.src_width        = params.src_width;
+	lsdma_data->u.tiled_copy_data.dst_width        = params.dst_width;
 	lsdma_data->u.tiled_copy_data.src_swizzle_mode = params.swizzle_mode;
 	lsdma_data->u.tiled_copy_data.dst_swizzle_mode = params.swizzle_mode;
 	lsdma_data->u.tiled_copy_data.src_element_size = params.element_size;
 	lsdma_data->u.tiled_copy_data.dst_element_size = params.element_size;
-	lsdma_data->u.tiled_copy_data.rect_x           = params.rect_x - 1;
-	lsdma_data->u.tiled_copy_data.rect_y           = params.rect_y - 1;
+	lsdma_data->u.tiled_copy_data.rect_x           = params.rect_x;
+	lsdma_data->u.tiled_copy_data.rect_y           = params.rect_y;
 	lsdma_data->u.tiled_copy_data.dcc              = params.dcc;
 	lsdma_data->u.tiled_copy_data.tmz              = params.tmz;
 	lsdma_data->u.tiled_copy_data.read_compress    = params.read_compress;
 	lsdma_data->u.tiled_copy_data.write_compress   = params.write_compress;
-	lsdma_data->u.tiled_copy_data.src_height       = params.src_height - 1; // LSDMA controller expects height -1
-	lsdma_data->u.tiled_copy_data.dst_height       = params.dst_height - 1; // LSDMA controller expects height -1
+	lsdma_data->u.tiled_copy_data.src_height       = params.src_height;
+	lsdma_data->u.tiled_copy_data.dst_height       = params.dst_height;
 	lsdma_data->u.tiled_copy_data.data_format      = params.data_format;
 	lsdma_data->u.tiled_copy_data.max_com          = params.max_com;
 	lsdma_data->u.tiled_copy_data.max_uncom        = params.max_uncom;
-- 
2.43.0

[PATCH 06/11] drm/amd/display: Setup Second Stutter Watermark Implementation

[Alex Hung]

From: Austin Zheng <Austin.Zheng@amd.com>

[WHY & HOW]
Setup initial changes required to program another set of watermarks
for a 2nd stutter mode. The 2nd stutter mode will be lower power but
have higher enter/exit latencies.

PMFW to choose which stutter mode to use based on stutter efficiences
to see if original stutter (LP1) or low power stutter (LP2) will result
in better power savings.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Austin Zheng <Austin.Zheng@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
---
 drivers/gpu/drm/amd/display/dc/dc.h                  |  9 +++++++++
 .../display/dc/dml2/dml21/dml21_translation_helper.c |  2 ++
 .../dc/dml2/dml21/inc/dml_top_dchub_registers.h      |  2 ++
 .../dc/dml2/dml21/inc/dml_top_soc_parameter_types.h  |  2 ++
 .../amd/display/dc/dml2/dml21/inc/dml_top_types.h    |  2 ++
 .../dml21/src/dml2_core/dml2_core_shared_types.h     | 12 ++++++++++++
 6 files changed, 29 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 1ab05eabbddb..29aaa38cc784 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -694,6 +694,15 @@ struct dc_clocks {
 	int idle_fclk_khz;
 	int subvp_prefetch_dramclk_khz;
 	int subvp_prefetch_fclk_khz;
+
+	/* Stutter efficiency is technically not clock values
+	 * but stored here so the values are part of the update_clocks call similar to num_ways
+	 * Efficiencies are stored as percentage (0-100)
+	 */
+	struct {
+		uint8_t base_efficiency; //LP1
+		uint8_t low_power_efficiency; //LP2
+	} stutter_efficiency;
 };
 
 struct dc_bw_validation_profile {
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c b/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c
index a06217a9eef6..23fdb17f851a 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c
@@ -1165,6 +1165,8 @@ void dml21_copy_clocks_to_dc_state(struct dml2_context *in_ctx, struct dc_state
 	context->bw_ctx.bw.dcn.clk.socclk_khz = in_ctx->v21.mode_programming.programming->min_clocks.dcn4x.socclk_khz;
 	context->bw_ctx.bw.dcn.clk.subvp_prefetch_dramclk_khz = in_ctx->v21.mode_programming.programming->min_clocks.dcn4x.svp_prefetch_no_throttle.uclk_khz;
 	context->bw_ctx.bw.dcn.clk.subvp_prefetch_fclk_khz = in_ctx->v21.mode_programming.programming->min_clocks.dcn4x.svp_prefetch_no_throttle.fclk_khz;
+	context->bw_ctx.bw.dcn.clk.stutter_efficiency.base_efficiency = in_ctx->v21.mode_programming.programming->stutter.base_percent_efficiency;
+	context->bw_ctx.bw.dcn.clk.stutter_efficiency.low_power_efficiency = in_ctx->v21.mode_programming.programming->stutter.low_power_percent_efficiency;
 }
 
 static struct dml2_dchub_watermark_regs *wm_set_index_to_dc_wm_set(union dcn_watermark_set *watermarks, const enum dml2_dchub_watermark_reg_set_index wm_index)
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/inc/dml_top_dchub_registers.h b/drivers/gpu/drm/amd/display/dc/dml2/dml21/inc/dml_top_dchub_registers.h
index b05030926ce8..91955bbe24b8 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/inc/dml_top_dchub_registers.h
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/inc/dml_top_dchub_registers.h
@@ -159,6 +159,8 @@ struct dml2_dchub_watermark_regs {
 	uint32_t sr_exit;
 	uint32_t sr_enter_z8;
 	uint32_t sr_exit_z8;
+	uint32_t sr_enter_low_power;
+	uint32_t sr_exit_low_power;
 	uint32_t uclk_pstate;
 	uint32_t fclk_pstate;
 	uint32_t temp_read_or_ppt;
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/inc/dml_top_soc_parameter_types.h b/drivers/gpu/drm/amd/display/dc/dml2/dml21/inc/dml_top_soc_parameter_types.h
index 8c9f414aa6bf..176f55947664 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/inc/dml_top_soc_parameter_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/inc/dml_top_soc_parameter_types.h
@@ -96,6 +96,8 @@ struct dml2_soc_power_management_parameters {
 	double g7_temperature_read_blackout_us;
 	double stutter_enter_plus_exit_latency_us;
 	double stutter_exit_latency_us;
+	double low_power_stutter_enter_plus_exit_latency_us;
+	double low_power_stutter_exit_latency_us;
 	double z8_stutter_enter_plus_exit_latency_us;
 	double z8_stutter_exit_latency_us;
 	double z8_min_idle_time;
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/inc/dml_top_types.h b/drivers/gpu/drm/amd/display/dc/dml2/dml21/inc/dml_top_types.h
index 98c0234e2f47..7de10a95cfdb 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/inc/dml_top_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/inc/dml_top_types.h
@@ -417,6 +417,8 @@ struct dml2_display_cfg_programming {
 
 	struct {
 		bool supported_in_blank; // Changing to configurations where this is false requires stutter to be disabled during the transition
+		uint8_t base_percent_efficiency; //LP1
+		uint8_t low_power_percent_efficiency; //LP2
 	} stutter;
 
 	struct {
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_shared_types.h b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_shared_types.h
index 28687565ac22..ffb8c09f37a5 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_shared_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_shared_types.h
@@ -201,6 +201,8 @@ struct dml2_core_internal_watermarks {
 	double WritebackFCLKChangeWatermark;
 	double StutterExitWatermark;
 	double StutterEnterPlusExitWatermark;
+	double LowPowerStutterExitWatermark;
+	double LowPowerStutterEnterPlusExitWatermark;
 	double Z8StutterExitWatermark;
 	double Z8StutterEnterPlusExitWatermark;
 	double USRRetrainingWatermark;
@@ -877,6 +879,9 @@ struct dml2_core_internal_mode_program {
 	double Z8StutterEfficiency;
 	unsigned int Z8NumberOfStutterBurstsPerFrame;
 	double Z8StutterEfficiencyNotIncludingVBlank;
+	double LowPowerStutterEfficiency;
+	double LowPowerStutterEfficiencyNotIncludingVBlank;
+	unsigned int LowPowerNumberOfStutterBurstsPerFrame;
 	double StutterPeriod;
 	double Z8StutterEfficiencyBestCase;
 	unsigned int Z8NumberOfStutterBurstsPerFrameBestCase;
@@ -1016,6 +1021,8 @@ struct dml2_core_internal_SOCParametersList {
 	double FCLKChangeLatency;
 	double SRExitTime;
 	double SREnterPlusExitTime;
+	double SRExitTimeLowPower;
+	double SREnterPlusExitTimeLowPower;
 	double SRExitZ8Time;
 	double SREnterPlusExitZ8Time;
 	double USRRetrainingLatency;
@@ -1851,9 +1858,11 @@ struct dml2_core_calcs_CalculateStutterEfficiency_params {
 	unsigned int CompbufReservedSpaceZs;
 	bool hw_debug5;
 	double SRExitTime;
+	double SRExitTimeLowPower;
 	double SRExitZ8Time;
 	bool SynchronizeTimings;
 	double StutterEnterPlusExitWatermark;
+	double LowPowerStutterEnterPlusExitWatermark;
 	double Z8StutterEnterPlusExitWatermark;
 	bool ProgressiveToInterlaceUnitInOPP;
 	double *MinTTUVBlank;
@@ -1879,7 +1888,10 @@ struct dml2_core_calcs_CalculateStutterEfficiency_params {
 	// output
 	double *StutterEfficiencyNotIncludingVBlank;
 	double *StutterEfficiency;
+	double *LowPowerStutterEfficiencyNotIncludingVBlank;
+	double *LowPowerStutterEfficiency;
 	unsigned int *NumberOfStutterBurstsPerFrame;
+	unsigned int *LowPowerNumberOfStutterBurstsPerFrame;
 	double *Z8StutterEfficiencyNotIncludingVBlank;
 	double *Z8StutterEfficiency;
 	unsigned int *Z8NumberOfStutterBurstsPerFrame;
-- 
2.43.0

[PATCH 07/11] drm/amd/display: Attach privacy screen to DRM connector

[Alex Hung]

From: Mario Limonciello <mario.limonciello@amd.com>

[WHY]
If a system has a privacy screen advertised by a driver it should
be included in the DRM connector for the eDP panel.

[HOW]
Detect statically declared privacy screens when creating eDP connector
and attach privacy screen DRM properties.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 25 ++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

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 e8cfae2bd2ae..176f420effd9 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -80,6 +80,7 @@
 #include <linux/component.h>
 #include <linux/sort.h>
 
+#include <drm/drm_privacy_screen_consumer.h>
 #include <drm/display/drm_dp_mst_helper.h>
 #include <drm/display/drm_hdmi_helper.h>
 #include <drm/drm_atomic.h>
@@ -7846,6 +7847,14 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
 	if (!crtc)
 		return 0;
 
+	if (new_con_state->privacy_screen_sw_state != old_con_state->privacy_screen_sw_state) {
+		new_crtc_state = drm_atomic_get_crtc_state(state, crtc);
+		if (IS_ERR(new_crtc_state))
+			return PTR_ERR(new_crtc_state);
+
+		new_crtc_state->mode_changed = true;
+	}
+
 	if (new_con_state->colorspace != old_con_state->colorspace) {
 		new_crtc_state = drm_atomic_get_crtc_state(state, crtc);
 		if (IS_ERR(new_crtc_state))
@@ -8541,6 +8550,18 @@ void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
 		if (adev->dm.hdcp_workqueue)
 			drm_connector_attach_content_protection_property(&aconnector->base, true);
 	}
+
+	if (connector_type == DRM_MODE_CONNECTOR_eDP) {
+		struct drm_privacy_screen *privacy_screen;
+
+		privacy_screen = drm_privacy_screen_get(adev_to_drm(adev)->dev, NULL);
+		if (!IS_ERR(privacy_screen)) {
+			drm_connector_attach_privacy_screen_provider(&aconnector->base,
+								     privacy_screen);
+		} else if (PTR_ERR(privacy_screen) != -ENODEV) {
+			drm_warn(adev_to_drm(adev), "Error getting privacy-screen\n");
+		}
+	}
 }
 
 static int amdgpu_dm_i2c_xfer(struct i2c_adapter *i2c_adap,
@@ -10265,7 +10286,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
 	unsigned long flags;
 	bool wait_for_vblank = true;
 	struct drm_connector *connector;
-	struct drm_connector_state *old_con_state, *new_con_state;
+	struct drm_connector_state *old_con_state = NULL, *new_con_state = NULL;
 	struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
 	int crtc_disable_count = 0;
 
@@ -10383,6 +10404,8 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
 					    &stream_update);
 		mutex_unlock(&dm->dc_lock);
 		kfree(dummy_updates);
+
+		drm_connector_update_privacy_screen(new_con_state);
 	}
 
 	/**
-- 
2.43.0

[PATCH 08/11] drm/amd/display: Avoid a NULL pointer dereference

[Alex Hung]

From: Mario Limonciello <mario.limonciello@amd.com>

[WHY]
Although unlikely drm_atomic_get_new_connector_state() or
drm_atomic_get_old_connector_state() can return NULL.

[HOW]
Check returns before dereference.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +++
 1 file changed, 3 insertions(+)

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 176f420effd9..b944abea306d 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -7836,6 +7836,9 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
 	struct amdgpu_dm_connector *aconn = to_amdgpu_dm_connector(conn);
 	int ret;
 
+	if (WARN_ON(unlikely(!old_con_state || !new_con_state)))
+		return -EINVAL;
+
 	trace_amdgpu_dm_connector_atomic_check(new_con_state);
 
 	if (conn->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
-- 
2.43.0

[PATCH 09/11] drm/amd/display: [FW Promotion] Release 0.1.23.0

[Alex Hung]

From: Taimur Hassan <Syed.Hassan@amd.com>

1. Fix loop counter.
2. Check whether rb->capacity is 0.

Acked-by: Sun peng (Leo) Li <sunpeng.li@amd.com>
Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
---
 .../gpu/drm/amd/display/dmub/inc/dmub_cmd.h   | 21 ++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
index 52295efdba63..d7008d84c1ec 100644
--- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
+++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
@@ -6542,15 +6542,18 @@ static inline bool dmub_rb_full(struct dmub_rb *rb)
 static inline bool dmub_rb_push_front(struct dmub_rb *rb,
 				      const union dmub_rb_cmd *cmd)
 {
-	uint64_t volatile *dst = (uint64_t volatile *)((uint8_t *)(rb->base_address) + rb->wrpt);
-	const uint64_t *src = (const uint64_t *)cmd;
+	uint8_t *dst = (uint8_t *)(rb->base_address) + rb->wrpt;
+	const uint8_t *src = (const uint8_t *)cmd;
 	uint8_t i;
 
+	if (rb->capacity == 0)
+		return false;
+
 	if (dmub_rb_full(rb))
 		return false;
 
 	// copying data
-	for (i = 0; i < DMUB_RB_CMD_SIZE / sizeof(uint64_t); i++)
+	for (i = 0; i < DMUB_RB_CMD_SIZE; i++)
 		*dst++ = *src++;
 
 	rb->wrpt += DMUB_RB_CMD_SIZE;
@@ -6575,6 +6578,9 @@ static inline bool dmub_rb_out_push_front(struct dmub_rb *rb,
 	uint8_t *dst = (uint8_t *)(rb->base_address) + rb->wrpt;
 	const uint8_t *src = (const uint8_t *)cmd;
 
+	if (rb->capacity == 0)
+		return false;
+
 	if (dmub_rb_full(rb))
 		return false;
 
@@ -6620,6 +6626,9 @@ static inline void dmub_rb_get_rptr_with_offset(struct dmub_rb *rb,
 				  uint32_t num_cmds,
 				  uint32_t *next_rptr)
 {
+	if (rb->capacity == 0)
+		return;
+
 	*next_rptr = rb->rptr + DMUB_RB_CMD_SIZE * num_cmds;
 
 	if (*next_rptr >= rb->capacity)
@@ -6683,6 +6692,9 @@ static inline bool dmub_rb_out_front(struct dmub_rb *rb,
  */
 static inline bool dmub_rb_pop_front(struct dmub_rb *rb)
 {
+	if (rb->capacity == 0)
+		return false;
+
 	if (dmub_rb_empty(rb))
 		return false;
 
@@ -6707,6 +6719,9 @@ static inline void dmub_rb_flush_pending(const struct dmub_rb *rb)
 	uint32_t rptr = rb->rptr;
 	uint32_t wptr = rb->wrpt;
 
+	if (rb->capacity == 0)
+		return;
+
 	while (rptr != wptr) {
 		uint64_t *data = (uint64_t *)((uint8_t *)(rb->base_address) + rptr);
 		uint8_t i;
-- 
2.43.0

[PATCH 10/11] drm/amd/display: Fix Xorg desktop unresponsive on Replay panel

[Alex Hung]

From: Tom Chung <chiahsuan.chung@amd.com>

[WHY & HOW]
IPS & self-fresh feature can cause vblank counter resets between
vblank disable and enable.
It may cause system stuck due to wait the vblank counter.

Call the drm_crtc_vblank_restore() during vblank enable to estimate
missed vblanks by using timestamps and update the vblank counter in
DRM.

It can make the vblank counter increase smoothly and resolve this issue.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Sun peng (Leo) Li <sunpeng.li@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
---
 .../amd/display/amdgpu_dm/amdgpu_dm_crtc.c    | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
index 010172f930ae..45feb404b097 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
@@ -299,6 +299,25 @@ static inline int amdgpu_dm_crtc_set_vblank(struct drm_crtc *crtc, bool enable)
 	irq_type = amdgpu_display_crtc_idx_to_irq_type(adev, acrtc->crtc_id);
 
 	if (enable) {
+		struct dc *dc = adev->dm.dc;
+		struct drm_vblank_crtc *vblank = drm_crtc_vblank_crtc(crtc);
+		struct psr_settings *psr = &acrtc_state->stream->link->psr_settings;
+		struct replay_settings *pr = &acrtc_state->stream->link->replay_settings;
+		bool sr_supported = (psr->psr_version != DC_PSR_VERSION_UNSUPPORTED) ||
+								pr->config.replay_supported;
+
+		/*
+		 * IPS & self-refresh feature can cause vblank counter resets between
+		 * vblank disable and enable.
+		 * It may cause system stuck due to waiting for the vblank counter.
+		 * Call this function to estimate missed vblanks by using timestamps and
+		 * update the vblank counter in DRM.
+		 */
+		if (dc->caps.ips_support &&
+			dc->config.disable_ips != DMUB_IPS_DISABLE_ALL &&
+			sr_supported && vblank->config.disable_immediate)
+			drm_crtc_vblank_restore(crtc);
+
 		/* vblank irq on -> Only need vupdate irq in vrr mode */
 		if (amdgpu_dm_crtc_vrr_active(acrtc_state))
 			rc = amdgpu_dm_crtc_set_vupdate_irq(crtc, true);
-- 
2.43.0

[PATCH 11/11] drm/amd/display: Promote DC to 3.2.346

[Alex Hung]

From: Taimur Hassan <Syed.Hassan@amd.com>

This version brings along following updates:

- Fix Xorg desktop unresponsive on Replay panel
- [FW Promotion] Release 0.1.23.0
- Avoid a NULL pointer dereference
- Attach privacy screen to DRM connector
- Setup Second Stutter Watermark Implementation
- Align LSDMA commands fields
- Delete unused functions
- Optimize amdgpu_dm_atomic_commit_tail()
- Add primary plane to commits for correct VRR handling
- Refactor DPP enum for backwards compatibility.
- Add LSDMA Linear Sub Window Copy support

Acked-by: Sun peng (Leo) Li <sunpeng.li@amd.com>
Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
---
 drivers/gpu/drm/amd/display/dc/dc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 29aaa38cc784..eb7019ed92b2 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -55,7 +55,7 @@ struct aux_payload;
 struct set_config_cmd_payload;
 struct dmub_notification;
 
-#define DC_VER "3.2.345"
+#define DC_VER "3.2.346"
 
 /**
  * MAX_SURFACES - representative of the upper bound of surfaces that can be piped to a single CRTC
-- 
2.43.0

RE: [PATCH 00/11] DC Patches Aug 13, 2025

[Wheeler, Daniel]

[Public]

Hi all,

This week this patchset was tested on 4 systems, two dGPU and two APU based, and tested across multiple display and connection types.

APU
        * Single Display eDP -> 1080p 60hz, 1920x1200 165hz, 3840x2400 60hz
        * Single Display DP (SST DSC) -> 4k144hz, 4k240hz
        * Multi display -> eDP + DP/HDMI/USB-C -> 1080p 60hz eDP + 4k 144hz, 4k 240hz (Includes USB-C to DP/HDMI adapters)
        * Thunderbolt -> LG Ultrafine 5k
        * MST DSC -> Cable Matters 101075 (DP to 3x DP) with 3x 4k60hz displays, HP Hook G2 with 2x 4k60hz displays
        * USB 4 -> HP Hook G4, Lenovo Thunderbolt Dock, both with 2x 4k60hz DP and 1x 4k60hz HDMI displays
        * SST PCON -> Club3D CAC-1085 + 1x 4k 144hz, FRL3, at a max resolution supported by the dongle of 4k 120hz YUV420 12bpc.
        * MST PCON -> 1x 4k 144hz, FRL3, at a max resolution supported by the adapter of 4k 120hz RGB 8bpc.

DGPU
        * Single Display DP (SST DSC) -> 4k144hz, 4k240hz
        * Multiple Display DP -> 4k240hz + 4k144hz
        * MST (Startech MST14DP123DP [DP to 3x DP] and 2x 4k 60hz displays)
        * MST DSC (with Cable Matters 101075 [DP to 3x DP] with 3x 4k60hz displays)

The testing is a mix of automated and manual tests. Manual testing includes (but is not limited to)
        * Changing display configurations and settings
        * Video/Audio playback
        * Benchmark testing
        * Suspend/Resume testing
        * Feature testing (Freesync, HDCP, etc.)

Automated testing includes (but is not limited to)
        * Script testing (scripts to automate some of the manual checks)
        * IGT testing

The testing is mainly tested on the following displays, but occasionally there are tests with other displays
        * Samsung G8 Neo 4k240hz
        * Samsung QN55QN95B 4k 120hz
        * Acer XV322QKKV 4k144hz
        * HP U27 4k Wireless 4k60hz
        * LG 27UD58B 4k60hz
        * LG 32UN650WA 4k60hz
        * LG Ultrafine 5k 5k60hz
        * AU Optronics B140HAN01.1 1080p 60hz eDP
        * AU Optronics B160UAN01.J 1920x1200 165hz eDP
        * Samsung ATNA60YV02-0 3840x2400 60Hz OLED eDP


The patchset consists of the amd-staging-drm-next branch (Head commit - 96cfc62d3b6ee1db4f334751ca4180c8bbd67f01 -> drm/amdgpu: Add description for partition commands) with new patches added on top of it.

Tested on Ubuntu 24.04.3, on Wayland and X11, using KDE Plasma and Gnome.

Tested-by: Dan Wheeler <daniel.wheeler@amd.com>



Thank you,

Dan Wheeler
Sr. Technologist | AMD
SW Display
------------------------------------------------------------------------------------------------------------------
1 Commerce Valley Dr E, Thornhill, ON L3T 7X6
amd.com



-----Original Message-----
From: Hung, Alex <Alex.Hung@amd.com>
Sent: Wednesday, August 13, 2025 7:18 PM
To: amd-gfx@lists.freedesktop.org
Cc: Wentland, Harry <Harry.Wentland@amd.com>; Li, Sun peng (Leo) <Sunpeng.Li@amd.com>; Pillai, Aurabindo <Aurabindo.Pillai@amd.com>; Li, Roman <Roman.Li@amd.com>; Lin, Wayne <Wayne.Lin@amd.com>; Chung, ChiaHsuan (Tom) <ChiaHsuan.Chung@amd.com>; Zuo, Jerry <Jerry.Zuo@amd.com>; Wheeler, Daniel <Daniel.Wheeler@amd.com>; Wu, Ray <Ray.Wu@amd.com>; LIPSKI, IVAN <IVAN.LIPSKI@amd.com>; Hung, Alex <Alex.Hung@amd.com>
Subject: [PATCH 00/11] DC Patches Aug 13, 2025

This DC patchset brings improvements in multiple areas. In summary, we
have:

* Fix Xorg desktop unresponsive on Replay panel
* Refector by optimizing functions and deleting unused code
* Attach privacy screen to DRM connector
* Other misc improvement

Cc: Daniel Wheeler <daniel.wheeler@amd.com>

Austin Zheng (1):
  drm/amd/display: Setup Second Stutter Watermark Implementation

Clay King (1):
  drm/amd/display: Delete unused functions

Lohita Mudimela (1):
  drm/amd/display: Refactor DPP enum for backwards compatibility

Mario Limonciello (3):
  drm/amd/display: Optimize amdgpu_dm_atomic_commit_tail()
  drm/amd/display: Attach privacy screen to DRM connector
  drm/amd/display: Avoid a NULL pointer dereference

Rafal Ostrowski (2):
  drm/amd/display: Add LSDMA Linear Sub Window Copy support
  drm/amd/display: Align LSDMA commands fields

Taimur Hassan (2):
  drm/amd/display: [FW Promotion] Release 0.1.23.0
  drm/amd/display: Promote DC to 3.2.346

Tom Chung (1):
  drm/amd/display: Fix Xorg desktop unresponsive on Replay panel

 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 142 ++++++++++--------
 .../amd/display/amdgpu_dm/amdgpu_dm_crtc.c    |  19 +++
 drivers/gpu/drm/amd/display/dc/dc.h           |  11 +-
 drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c  |  70 +++++++--  drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h  |  36 ++++-
 .../dc/dml2/dml21/dml21_translation_helper.c  |   2 +
 .../dml2/dml21/inc/dml_top_dchub_registers.h  |   2 +
 .../dml21/inc/dml_top_soc_parameter_types.h   |   2 +
 .../display/dc/dml2/dml21/inc/dml_top_types.h |   2 +
 .../src/dml2_core/dml2_core_shared_types.h    |  12 ++
 .../amd/display/dc/dpp/dcn401/dcn401_dpp.h    |  10 ++
 .../display/dc/dpp/dcn401/dcn401_dpp_dscl.c   |  36 ++---
 drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h   |  15 --
 .../amd/display/dc/mpc/dcn401/dcn401_mpc.c    |   8 -
 .../amd/display/dc/mpc/dcn401/dcn401_mpc.h    |   5 -
 .../gpu/drm/amd/display/dmub/inc/dmub_cmd.h   |  21 ++-
 16 files changed, 265 insertions(+), 128 deletions(-)

--
2.43.0

Re: [PATCH 07/11] drm/amd/display: Attach privacy screen to DRM connector

[Alex Deucher]

On Wed, Aug 13, 2025 at 7:33 PM Alex Hung <alex.hung@amd.com> wrote:
>
> From: Mario Limonciello <mario.limonciello@amd.com>
>
> [WHY]
> If a system has a privacy screen advertised by a driver it should
> be included in the DRM connector for the eDP panel.
>
> [HOW]
> Detect statically declared privacy screens when creating eDP connector
> and attach privacy screen DRM properties.
>
> Reviewed-by: Harry Wentland <harry.wentland@amd.com>
> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
> Signed-off-by: Alex Hung <alex.hung@amd.com>
> ---
>  .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 25 ++++++++++++++++++-
>  1 file changed, 24 insertions(+), 1 deletion(-)
>
> 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 e8cfae2bd2ae..176f420effd9 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -80,6 +80,7 @@
>  #include <linux/component.h>
>  #include <linux/sort.h>
>
> +#include <drm/drm_privacy_screen_consumer.h>
>  #include <drm/display/drm_dp_mst_helper.h>
>  #include <drm/display/drm_hdmi_helper.h>
>  #include <drm/drm_atomic.h>
> @@ -7846,6 +7847,14 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
>         if (!crtc)
>                 return 0;
>
> +       if (new_con_state->privacy_screen_sw_state != old_con_state->privacy_screen_sw_state) {
> +               new_crtc_state = drm_atomic_get_crtc_state(state, crtc);
> +               if (IS_ERR(new_crtc_state))
> +                       return PTR_ERR(new_crtc_state);
> +
> +               new_crtc_state->mode_changed = true;
> +       }
> +
>         if (new_con_state->colorspace != old_con_state->colorspace) {
>                 new_crtc_state = drm_atomic_get_crtc_state(state, crtc);
>                 if (IS_ERR(new_crtc_state))
> @@ -8541,6 +8550,18 @@ void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
>                 if (adev->dm.hdcp_workqueue)
>                         drm_connector_attach_content_protection_property(&aconnector->base, true);
>         }
> +
> +       if (connector_type == DRM_MODE_CONNECTOR_eDP) {

Do the privacy screens exist on any old laptops with LVDS?  If so, we
should add DRM_MODE_CONNECTOR_LVDS here as well.

Alex

> +               struct drm_privacy_screen *privacy_screen;
> +
> +               privacy_screen = drm_privacy_screen_get(adev_to_drm(adev)->dev, NULL);
> +               if (!IS_ERR(privacy_screen)) {
> +                       drm_connector_attach_privacy_screen_provider(&aconnector->base,
> +                                                                    privacy_screen);
> +               } else if (PTR_ERR(privacy_screen) != -ENODEV) {
> +                       drm_warn(adev_to_drm(adev), "Error getting privacy-screen\n");
> +               }
> +       }
>  }
>
>  static int amdgpu_dm_i2c_xfer(struct i2c_adapter *i2c_adap,
> @@ -10265,7 +10286,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
>         unsigned long flags;
>         bool wait_for_vblank = true;
>         struct drm_connector *connector;
> -       struct drm_connector_state *old_con_state, *new_con_state;
> +       struct drm_connector_state *old_con_state = NULL, *new_con_state = NULL;
>         struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
>         int crtc_disable_count = 0;
>
> @@ -10383,6 +10404,8 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
>                                             &stream_update);
>                 mutex_unlock(&dm->dc_lock);
>                 kfree(dummy_updates);
> +
> +               drm_connector_update_privacy_screen(new_con_state);
>         }
>
>         /**
> --
> 2.43.0
>

Re: [PATCH 07/11] drm/amd/display: Attach privacy screen to DRM connector

[Limonciello, Mario]

On 8/18/25 4:16 PM, Alex Deucher wrote:
> On Wed, Aug 13, 2025 at 7:33 PM Alex Hung <alex.hung@amd.com> wrote:
>>
>> From: Mario Limonciello <mario.limonciello@amd.com>
>>
>> [WHY]
>> If a system has a privacy screen advertised by a driver it should
>> be included in the DRM connector for the eDP panel.
>>
>> [HOW]
>> Detect statically declared privacy screens when creating eDP connector
>> and attach privacy screen DRM properties.
>>
>> Reviewed-by: Harry Wentland <harry.wentland@amd.com>
>> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
>> Signed-off-by: Alex Hung <alex.hung@amd.com>
>> ---
>>   .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 25 ++++++++++++++++++-
>>   1 file changed, 24 insertions(+), 1 deletion(-)
>>
>> 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 e8cfae2bd2ae..176f420effd9 100644
>> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
>> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
>> @@ -80,6 +80,7 @@
>>   #include <linux/component.h>
>>   #include <linux/sort.h>
>>
>> +#include <drm/drm_privacy_screen_consumer.h>
>>   #include <drm/display/drm_dp_mst_helper.h>
>>   #include <drm/display/drm_hdmi_helper.h>
>>   #include <drm/drm_atomic.h>
>> @@ -7846,6 +7847,14 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
>>          if (!crtc)
>>                  return 0;
>>
>> +       if (new_con_state->privacy_screen_sw_state != old_con_state->privacy_screen_sw_state) {
>> +               new_crtc_state = drm_atomic_get_crtc_state(state, crtc);
>> +               if (IS_ERR(new_crtc_state))
>> +                       return PTR_ERR(new_crtc_state);
>> +
>> +               new_crtc_state->mode_changed = true;
>> +       }
>> +
>>          if (new_con_state->colorspace != old_con_state->colorspace) {
>>                  new_crtc_state = drm_atomic_get_crtc_state(state, crtc);
>>                  if (IS_ERR(new_crtc_state))
>> @@ -8541,6 +8550,18 @@ void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
>>                  if (adev->dm.hdcp_workqueue)
>>                          drm_connector_attach_content_protection_property(&aconnector->base, true);
>>          }
>> +
>> +       if (connector_type == DRM_MODE_CONNECTOR_eDP) {
> 
> Do the privacy screens exist on any old laptops with LVDS?  If so, we
> should add DRM_MODE_CONNECTOR_LVDS here as well.
> 
> Alex

At least for AMD laptops I don't think so.  They're for newer designs 
that would solely be connected eDP.

> 
>> +               struct drm_privacy_screen *privacy_screen;
>> +
>> +               privacy_screen = drm_privacy_screen_get(adev_to_drm(adev)->dev, NULL);
>> +               if (!IS_ERR(privacy_screen)) {
>> +                       drm_connector_attach_privacy_screen_provider(&aconnector->base,
>> +                                                                    privacy_screen);
>> +               } else if (PTR_ERR(privacy_screen) != -ENODEV) {
>> +                       drm_warn(adev_to_drm(adev), "Error getting privacy-screen\n");
>> +               }
>> +       }
>>   }
>>
>>   static int amdgpu_dm_i2c_xfer(struct i2c_adapter *i2c_adap,
>> @@ -10265,7 +10286,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
>>          unsigned long flags;
>>          bool wait_for_vblank = true;
>>          struct drm_connector *connector;
>> -       struct drm_connector_state *old_con_state, *new_con_state;
>> +       struct drm_connector_state *old_con_state = NULL, *new_con_state = NULL;
>>          struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
>>          int crtc_disable_count = 0;
>>
>> @@ -10383,6 +10404,8 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
>>                                              &stream_update);
>>                  mutex_unlock(&dm->dc_lock);
>>                  kfree(dummy_updates);
>> +
>> +               drm_connector_update_privacy_screen(new_con_state);
>>          }
>>
>>          /**
>> --
>> 2.43.0
>>