Mode 2 GPU reset should be done by sending message to SMU.

Signed-off-by: Andrey Grodzovsky <[email protected]>
---
 drivers/gpu/drm/amd/include/kgd_pp_interface.h    |  1 +
 drivers/gpu/drm/amd/powerplay/amd_powerplay.c     | 21 +++++++++++++++++++++
 drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c |  7 +++++++
 drivers/gpu/drm/amd/powerplay/inc/hwmgr.h         |  9 +++++++++
 4 files changed, 38 insertions(+)

diff --git a/drivers/gpu/drm/amd/include/kgd_pp_interface.h 
b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
index bba1291..9c477b4 100644
--- a/drivers/gpu/drm/amd/include/kgd_pp_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
@@ -310,6 +310,7 @@ struct amd_pm_funcs {
        int (*set_asic_baco_state)(void *handle, int state);
        int (*get_ppfeature_status)(void *handle, char *buf);
        int (*set_ppfeature_status)(void *handle, uint64_t ppfeature_masks);
+       int (*asic_reset_mod_2)(void *handle);
 };
 
 #endif
diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c 
b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
index 2e3d9ef6..becca76 100644
--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
@@ -1508,6 +1508,26 @@ static int pp_set_ppfeature_status(void *handle, 
uint64_t ppfeature_masks)
        return ret;
 }
 
+static int pp_asic_reset_mode_2(void *handle)
+{
+       struct pp_hwmgr *hwmgr = handle;
+               int ret = 0;
+
+       if (!hwmgr || !hwmgr->pm_en)
+               return -EINVAL;
+
+       if (hwmgr->hwmgr_func->asic_reset == NULL) {
+               pr_info_ratelimited("%s was not implemented.\n", __func__);
+               return -EINVAL;
+       }
+
+       mutex_lock(&hwmgr->smu_lock);
+       ret = hwmgr->hwmgr_func->asic_reset(hwmgr, SMU_ASCI_RESET_MODE_2);
+       mutex_unlock(&hwmgr->smu_lock);
+
+       return ret;
+}
+
 static const struct amd_pm_funcs pp_dpm_funcs = {
        .load_firmware = pp_dpm_load_fw,
        .wait_for_fw_loading_complete = pp_dpm_fw_loading_complete,
@@ -1564,4 +1584,5 @@ static const struct amd_pm_funcs pp_dpm_funcs = {
        .set_asic_baco_state = pp_set_asic_baco_state,
        .get_ppfeature_status = pp_get_ppfeature_status,
        .set_ppfeature_status = pp_set_ppfeature_status,
+       .asic_reset_mod_2 = pp_asic_reset_mode_2,
 };
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c 
b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
index 18e780f..1115761 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
@@ -1311,6 +1311,12 @@ static int smu10_set_power_profile_mode(struct pp_hwmgr 
*hwmgr, long *input, uin
        return 0;
 }
 
+static int smu10_asic_reset(struct pp_hwmgr *hwmgr, enum SMU_ASIC_RESET_MODE 
mode)
+{
+       return smum_send_msg_to_smc_with_parameter(hwmgr,
+                                                  PPSMC_MSG_DeviceDriverReset,
+                                                  mode);
+}
 
 static const struct pp_hwmgr_func smu10_hwmgr_funcs = {
        .backend_init = smu10_hwmgr_backend_init,
@@ -1355,6 +1361,7 @@ static const struct pp_hwmgr_func smu10_hwmgr_funcs = {
        .set_hard_min_fclk_by_freq = smu10_set_hard_min_fclk_by_freq,
        .get_power_profile_mode = smu10_get_power_profile_mode,
        .set_power_profile_mode = smu10_set_power_profile_mode,
+       .asic_reset = smu10_asic_reset,
 };
 
 int smu10_init_function_pointers(struct pp_hwmgr *hwmgr)
diff --git a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h 
b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
index 07fd64a..d583568 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
@@ -189,6 +189,14 @@ struct phm_vce_clock_voltage_dependency_table {
        struct phm_vce_clock_voltage_dependency_record entries[1];
 };
 
+
+enum SMU_ASIC_RESET_MODE
+{
+    SMU_ASCI_RESET_MODE_0,
+    SMU_ASCI_RESET_MODE_1,
+    SMU_ASCI_RESET_MODE_2,
+};
+
 struct pp_smumgr_func {
        char *name;
        int (*smu_init)(struct pp_hwmgr  *hwmgr);
@@ -345,6 +353,7 @@ struct pp_hwmgr_func {
        int (*get_ppfeature_status)(struct pp_hwmgr *hwmgr, char *buf);
        int (*set_ppfeature_status)(struct pp_hwmgr *hwmgr, uint64_t 
ppfeature_masks);
        int (*set_mp1_state)(struct pp_hwmgr *hwmgr, enum pp_mp1_state 
mp1_state);
+       int (*asic_reset)(struct pp_hwmgr *hwmgr, enum SMU_ASIC_RESET_MODE 
mode);
 };
 
 struct pp_table_func {
-- 
2.7.4

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