drm/amd/pp: Export notify_smu_enable_pwe to display

Display can notify smu to enable pwe after gpu suspend.
It is used in case when display resumes from S3 and wants to start
audio driver by enabling pwe

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/include/kgd_pp_interface.h b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
index 99ee3edd1609a8fd02f58ce329ae32470df9aec5..6a41b81c7325fd640271d01497e5ea095d3fc1d7 100644 (file)
--- a/drivers/gpu/drm/amd/include/kgd_pp_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
@@ -241,6 +241,9 @@ struct amd_pm_funcs {
        int (*set_clockgating_by_smu)(void *handle, uint32_t msg_id);
        int (*set_power_limit)(void *handle, uint32_t n);
        int (*get_power_limit)(void *handle, uint32_t *limit, bool default_limit);
+       int (*get_power_profile_mode)(void *handle, char *buf);
+       int (*set_power_profile_mode)(void *handle, long *input, uint32_t size);
+       int (*odn_edit_dpm_table)(void *handle, uint32_t type, long *input, uint32_t size);
 /* export to DC */
        u32 (*get_sclk)(void *handle, bool low);
        u32 (*get_mclk)(void *handle, bool low);
@@ -265,9 +268,7 @@ struct amd_pm_funcs {
                                struct pp_display_clock_request *clock);
        int (*get_display_mode_validation_clocks)(void *handle,
                struct amd_pp_simple_clock_info *clocks);
-       int (*get_power_profile_mode)(void *handle, char *buf);
-       int (*set_power_profile_mode)(void *handle, long *input, uint32_t size);
-       int (*odn_edit_dpm_table)(void *handle, uint32_t type, long *input, uint32_t size);
+       int (*notify_smu_enable_pwe)(void *handle);
 };
 
 #endif

diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
index b72cc644d4e7c0aacab3b0e5215ad13e73858308..145e5c403bea55ceca2bfe10609e08f18b2e1289 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
@@ -1201,6 +1201,25 @@ static int pp_set_powergating_by_smu(void *handle,
        return ret;
 }
 
+static int pp_notify_smu_enable_pwe(void *handle)
+{
+       struct pp_hwmgr *hwmgr = handle;
+
+       if (!hwmgr || !hwmgr->pm_en)
+               return -EINVAL;;
+
+       if (hwmgr->hwmgr_func->smus_notify_pwe == NULL) {
+               pr_info("%s was not implemented.\n", __func__);
+               return -EINVAL;;
+       }
+
+       mutex_lock(&hwmgr->smu_lock);
+       hwmgr->hwmgr_func->smus_notify_pwe(hwmgr);
+       mutex_unlock(&hwmgr->smu_lock);
+
+       return 0;
+}
+
 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,
@@ -1244,4 +1263,5 @@ static const struct amd_pm_funcs pp_dpm_funcs = {
        .set_watermarks_for_clocks_ranges = pp_set_watermarks_for_clocks_ranges,
        .display_clock_voltage_request = pp_display_clock_voltage_request,
        .get_display_mode_validation_clocks = pp_get_display_mode_validation_clocks,
+       .notify_smu_enable_pwe = pp_notify_smu_enable_pwe,
 };