drm/amd/display: Move DCN314 DOMAIN power control to DMCUB

From Nicholas Kazlauskas
4da108082a3290804ebbd42d70ce8535c00e4637 in linux-6.1.y/6.1.15
e383b12709e32d6494c948422070c2464b637e44 in mainline linux

4 files changed, 52 insertions, 1 deletions

diff --git a/sys/dev/pci/drm/amd/display/dc/dcn314/dcn314_hwseq.c b/sys/dev/pci/drm/amd/display/dc/dcn314/dcn314_hwseq.c
index a0741794db6..8e824dc81de 100644
--- a/sys/dev/pci/drm/amd/display/dc/dcn314/dcn314_hwseq.c
+++ b/sys/dev/pci/drm/amd/display/dc/dcn314/dcn314_hwseq.c
@@ -391,3 +391,27 @@ void dcn314_set_pixels_per_cycle(struct pipe_ctx *pipe_ctx)
 		pipe_ctx->stream_res.stream_enc->funcs->set_input_mode(pipe_ctx->stream_res.stream_enc,
 				pix_per_cycle);
 }
+
+void dcn314_hubp_pg_control(struct dce_hwseq *hws, unsigned int hubp_inst, bool power_on)
+{
+	struct dc_context *ctx = hws->ctx;
+	union dmub_rb_cmd cmd;
+
+	if (hws->ctx->dc->debug.disable_hubp_power_gate)
+		return;
+
+	PERF_TRACE();
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.domain_control.header.type = DMUB_CMD__VBIOS;
+	cmd.domain_control.header.sub_type = DMUB_CMD__VBIOS_DOMAIN_CONTROL;
+	cmd.domain_control.header.payload_bytes = sizeof(cmd.domain_control.data);
+	cmd.domain_control.data.inst = hubp_inst;
+	cmd.domain_control.data.power_gate = !power_on;
+
+	dc_dmub_srv_cmd_queue(ctx->dmub_srv, &cmd);
+	dc_dmub_srv_cmd_execute(ctx->dmub_srv);
+	dc_dmub_srv_wait_idle(ctx->dmub_srv);
+
+	PERF_TRACE();
+}
diff --git a/sys/dev/pci/drm/amd/display/dc/dcn314/dcn314_hwseq.h b/sys/dev/pci/drm/amd/display/dc/dcn314/dcn314_hwseq.h
index 24428029821..c419d3dbdfe 100644
--- a/sys/dev/pci/drm/amd/display/dc/dcn314/dcn314_hwseq.h
+++ b/sys/dev/pci/drm/amd/display/dc/dcn314/dcn314_hwseq.h
@@ -41,4 +41,6 @@ unsigned int dcn314_calculate_dccg_k1_k2_values(struct pipe_ctx *pipe_ctx, unsig
 
 void dcn314_set_pixels_per_cycle(struct pipe_ctx *pipe_ctx);
 
+void dcn314_hubp_pg_control(struct dce_hwseq *hws, unsigned int hubp_inst, bool power_on);
+
 #endif /* __DC_HWSS_DCN314_H__ */
diff --git a/sys/dev/pci/drm/amd/display/dc/dcn314/dcn314_init.c b/sys/dev/pci/drm/amd/display/dc/dcn314/dcn314_init.c
index 5b6c2d94ec7..343f4d9dd5e 100644
--- a/sys/dev/pci/drm/amd/display/dc/dcn314/dcn314_init.c
+++ b/sys/dev/pci/drm/amd/display/dc/dcn314/dcn314_init.c
@@ -137,7 +137,7 @@ static const struct hwseq_private_funcs dcn314_private_funcs = {
 	.plane_atomic_disable = dcn20_plane_atomic_disable,
 	.plane_atomic_power_down = dcn10_plane_atomic_power_down,
 	.enable_power_gating_plane = dcn314_enable_power_gating_plane,
-	.hubp_pg_control = dcn31_hubp_pg_control,
+	.hubp_pg_control = dcn314_hubp_pg_control,
 	.program_all_writeback_pipes_in_tree = dcn30_program_all_writeback_pipes_in_tree,
 	.update_odm = dcn314_update_odm,
 	.dsc_pg_control = dcn314_dsc_pg_control,
diff --git a/sys/dev/pci/drm/amd/display/dmub/inc/dmub_cmd.h b/sys/dev/pci/drm/amd/display/dmub/inc/dmub_cmd.h
index 1bc2832a71d..bb5f2ba6c76 100644
--- a/sys/dev/pci/drm/amd/display/dmub/inc/dmub_cmd.h
+++ b/sys/dev/pci/drm/amd/display/dmub/inc/dmub_cmd.h
@@ -452,6 +452,10 @@ enum dmub_cmd_vbios_type {
 	 * Query DP alt status on a transmitter.
 	 */
 	DMUB_CMD__VBIOS_TRANSMITTER_QUERY_DP_ALT  = 26,
+	/**
+	 * Controls domain power gating
+	 */
+	DMUB_CMD__VBIOS_DOMAIN_CONTROL = 28,
 };
 
 //==============================================================================
@@ -1194,6 +1198,23 @@ struct dmub_rb_cmd_dig1_transmitter_control {
 };
 
 /**
+ * struct dmub_rb_cmd_domain_control_data - Data for DOMAIN power control
+ */
+struct dmub_rb_cmd_domain_control_data {
+	uint8_t inst : 6; /**< DOMAIN instance to control */
+	uint8_t power_gate : 1; /**< 1=power gate, 0=power up */
+	uint8_t reserved[3]; /**< Reserved for future use */
+};
+
+/**
+ * struct dmub_rb_cmd_domain_control - Controls DOMAIN power gating
+ */
+struct dmub_rb_cmd_domain_control {
+	struct dmub_cmd_header header; /**< header */
+	struct dmub_rb_cmd_domain_control_data data; /**< payload */
+};
+
+/**
  * DPIA tunnel command parameters.
  */
 struct dmub_cmd_dig_dpia_control_data {
@@ -3190,6 +3211,10 @@ union dmub_rb_cmd {
 	 */
 	struct dmub_rb_cmd_dig1_transmitter_control dig1_transmitter_control;
 	/**
+	 * Definition of a DMUB_CMD__VBIOS_DOMAIN_CONTROL command.
+	 */
+	struct dmub_rb_cmd_domain_control domain_control;
+	/**
 	 * Definition of a DMUB_CMD__PSR_SET_VERSION command.
 	 */
 	struct dmub_rb_cmd_psr_set_version psr_set_version;