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>

4 files changed, 11 insertions, 11 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c
index 08783ad097d2..8e88dcaf88f5 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c
@@ -154,7 +154,7 @@ static bool dmub_abm_set_pipe(struct abm *abm, uint32_t otg_inst,
 	cmd.abm_set_pipe.abm_set_pipe_data.ramping_boundary = ramping_boundary;
 	cmd.abm_set_pipe.header.payload_bytes = sizeof(struct dmub_cmd_abm_set_pipe_data);
 
-	dm_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
+	dc_wake_and_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
 
 	return true;
 }
@@ -173,7 +173,7 @@ static void dmub_abm_set_backlight(struct dc_context *dc, uint32_t backlight_pwm
 	cmd.abm_set_backlight.abm_set_backlight_data.panel_mask = (0x01 << panel_inst);
 	cmd.abm_set_backlight.header.payload_bytes = sizeof(struct dmub_cmd_abm_set_backlight_data);
 
-	dm_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
+	dc_wake_and_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
 }
 
 void dcn21_set_abm_immediate_disable(struct pipe_ctx *pipe_ctx)
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn30/dcn30_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn30/dcn30_hwseq.c
index fd8a8c10a201..d337578d7e73 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn30/dcn30_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn30/dcn30_hwseq.c
@@ -754,7 +754,7 @@ bool dcn30_apply_idle_power_optimizations(struct dc *dc, bool enable)
 				cmd.mall.header.sub_type = DMUB_CMD__MALL_ACTION_NO_DF_REQ;
 				cmd.mall.header.payload_bytes = sizeof(cmd.mall) - sizeof(cmd.mall.header);
 
-				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);
 
 				return true;
 			}
@@ -876,7 +876,7 @@ bool dcn30_apply_idle_power_optimizations(struct dc *dc, bool enable)
 					cmd.mall.cursor_height = cursor_attr.height;
 					cmd.mall.cursor_pitch = cursor_attr.pitch;
 
-					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);
 
 					/* Use copied cursor, and it's okay to not switch back */
 					cursor_attr.address.quad_part = cmd.mall.cursor_copy_dst.quad_part;
@@ -892,7 +892,7 @@ bool dcn30_apply_idle_power_optimizations(struct dc *dc, bool enable)
 				cmd.mall.tmr_scale = tmr_scale;
 				cmd.mall.debug_bits = dc->debug.mall_error_as_fatal;
 
-				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);
 
 				return true;
 			}
@@ -909,7 +909,7 @@ bool dcn30_apply_idle_power_optimizations(struct dc *dc, bool enable)
 	cmd.mall.header.payload_bytes =
 		sizeof(cmd.mall) - sizeof(cmd.mall.header);
 
-	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;
 }
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c
index 5d62805f3bdf..994250b6f2ef 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c
@@ -416,7 +416,7 @@ void dcn31_z10_save_init(struct dc *dc)
 	cmd.dcn_restore.header.type = DMUB_CMD__IDLE_OPT;
 	cmd.dcn_restore.header.sub_type = DMUB_CMD__IDLE_OPT_DCN_SAVE_INIT;
 
-	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);
 }
 
 void dcn31_z10_restore(const struct dc *dc)
@@ -434,7 +434,7 @@ void dcn31_z10_restore(const struct dc *dc)
 	cmd.dcn_restore.header.type = DMUB_CMD__IDLE_OPT;
 	cmd.dcn_restore.header.sub_type = DMUB_CMD__IDLE_OPT_DCN_RESTORE;
 
-	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);
 }
 
 void dcn31_hubp_pg_control(struct dce_hwseq *hws, unsigned int hubp_inst, bool power_on)
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c
index 0f0972ad441a..cb9d8389329f 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c
@@ -277,7 +277,7 @@ bool dcn32_apply_idle_power_optimizations(struct dc *dc, bool enable)
 				cmd.cab.header.sub_type = DMUB_CMD__CAB_NO_DCN_REQ;
 				cmd.cab.header.payload_bytes = sizeof(cmd.cab) - sizeof(cmd.cab.header);
 
-				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);
 
 				return true;
 			}
@@ -311,7 +311,7 @@ bool dcn32_apply_idle_power_optimizations(struct dc *dc, bool enable)
 				cmd.cab.header.payload_bytes = sizeof(cmd.cab) - sizeof(cmd.cab.header);
 				cmd.cab.cab_alloc_ways = (uint8_t)ways;
 
-				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);
 
 				return true;
 			}
@@ -327,7 +327,7 @@ bool dcn32_apply_idle_power_optimizations(struct dc *dc, bool enable)
 	cmd.cab.header.payload_bytes =
 			sizeof(cmd.cab) - sizeof(cmd.cab.header);
 
-	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;
 }