drm/amd/display: Wake DMCUB before sending a command

[Why]
We can hang in place trying to send commands when the DMCUB isn't
powered on.

[How]
For functions that execute within a DC context or DC lock we can
wrap the direct calls to dm_execute_dmub_cmd/list with code that
exits idle power optimizations and reallows once we're done with
the command submission on success.

For DM direct submissions the DM will need to manage the enter/exit
sequencing manually.

We cannot invoke a DMCUB command directly within the DM execution
helper or we can deadlock.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Hansen Dsouza <hansen.dsouza@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 6 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 445f87fa0eac..f2fc7df68b58 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -522,7 +522,7 @@ dc_stream_forward_dmub_crc_window(struct dc_dmub_srv *dmub_srv,
 		cmd.secure_display.roi_info.y_end = rect->y + rect->height;
 	}
 
-	dm_execute_dmub_cmd(dmub_srv->ctx, &cmd, DM_DMUB_WAIT_TYPE_NO_WAIT);
+	dc_wake_and_execute_dmub_cmd(dmub_srv->ctx, &cmd, DM_DMUB_WAIT_TYPE_NO_WAIT);
 }
 
 static inline void
@@ -3381,7 +3381,7 @@ void dc_dmub_update_dirty_rect(struct dc *dc,
 
 			update_dirty_rect->panel_inst = panel_inst;
 			update_dirty_rect->pipe_idx = j;
-			dm_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_NO_WAIT);
+			dc_wake_and_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_NO_WAIT);
 		}
 	}
 }
@@ -5207,7 +5207,7 @@ bool dc_process_dmub_aux_transfer_async(struct dc *dc,
 			);
 	}
 
-	dm_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
+	dc_wake_and_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
 
 	return true;
 }
@@ -5261,7 +5261,7 @@ bool dc_process_dmub_set_config_async(struct dc *dc,
 	cmd.set_config_access.set_config_control.cmd_pkt.msg_type = payload->msg_type;
 	cmd.set_config_access.set_config_control.cmd_pkt.msg_data = payload->msg_data;
 
-	if (!dm_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_WAIT_WITH_REPLY)) {
+	if (!dc_wake_and_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_WAIT_WITH_REPLY)) {
 		/* command is not processed by dmub */
 		notify->sc_status = SET_CONFIG_UNKNOWN_ERROR;
 		return is_cmd_complete;
@@ -5304,7 +5304,7 @@ enum dc_status dc_process_dmub_set_mst_slots(const struct dc *dc,
 	cmd.set_mst_alloc_slots.mst_slots_control.instance = dc->links[link_index]->ddc_hw_inst;
 	cmd.set_mst_alloc_slots.mst_slots_control.mst_alloc_slots = mst_alloc_slots;
 
-	if (!dm_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_WAIT_WITH_REPLY))
+	if (!dc_wake_and_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_WAIT_WITH_REPLY))
 		/* command is not processed by dmub */
 		return DC_ERROR_UNEXPECTED;
 
@@ -5342,7 +5342,7 @@ void dc_process_dmub_dpia_hpd_int_enable(const struct dc *dc,
 	cmd.dpia_hpd_int_enable.header.type = DMUB_CMD__DPIA_HPD_INT_ENABLE;
 	cmd.dpia_hpd_int_enable.enable = hpd_int_enable;
 
-	dm_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
+	dc_wake_and_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
 
 	DC_LOG_DEBUG("%s: hpd_int_enable(%d)\n", __func__, hpd_int_enable);
 }