[PATCH 04/17] drm/amd/display: Add SMU timeout check and retry

[Rodrigo Siqueira]

Instead of only asserting in the case of the SMU wait time is not what
we expect, add the SMU timeout check and try again.

Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
---
 .../display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c   | 11 ++++++++---
 .../drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c    |  6 +++++-
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c
index d72acbb049b1..23b390245b5d 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c
@@ -26,6 +26,10 @@
 #include "core_types.h"
 #include "clk_mgr_internal.h"
 #include "reg_helper.h"
+#include "dm_helpers.h"
+
+#include "rn_clk_mgr_vbios_smu.h"
+
 #include <linux/delay.h>
 
 #include "renoir_ip_offset.h"
@@ -33,8 +37,6 @@
 #include "mp/mp_12_0_0_offset.h"
 #include "mp/mp_12_0_0_sh_mask.h"
 
-#include "rn_clk_mgr_vbios_smu.h"
-
 #define REG(reg_name) \
 	(MP0_BASE.instance[0].segment[mm ## reg_name ## _BASE_IDX] + mm ## reg_name)
 
@@ -120,7 +122,10 @@ static int rn_vbios_smu_send_msg_with_param(struct clk_mgr_internal *clk_mgr,
 
 	result = rn_smu_wait_for_response(clk_mgr, 10, 200000);
 
-	ASSERT(result == VBIOSSMC_Result_OK || result == VBIOSSMC_Result_UnknownCmd);
+	if (IS_SMU_TIMEOUT(result)) {
+		ASSERT(0);
+		dm_helpers_smu_timeout(CTX, msg_id, param, 10 * 200000);
+	}
 
 	/* Actual dispclk set is returned in the parameter register */
 	return REG_READ(MP1_SMN_C2PMSG_83);
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c
index 19e5b3be9275..b4fb17b7a096 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c
@@ -29,6 +29,7 @@
 #include <linux/delay.h>
 
 #include "dcn301_smu.h"
+#include "dm_helpers.h"
 
 #include "vangogh_ip_offset.h"
 
@@ -120,7 +121,10 @@ static int dcn301_smu_send_msg_with_param(struct clk_mgr_internal *clk_mgr,
 
 	result = dcn301_smu_wait_for_response(clk_mgr, 10, 200000);
 
-	ASSERT(result == VBIOSSMC_Result_OK);
+	if (IS_SMU_TIMEOUT(result)) {
+		ASSERT(0);
+		dm_helpers_smu_timeout(CTX, msg_id, param, 10 * 200000);
+	}
 
 	/* Actual dispclk set is returned in the parameter register */
 	return REG_READ(MP1_SMN_C2PMSG_83);
-- 
2.43.0