From ea870e44415a5f5ed09b6e002e38d3e0de7f390e Mon Sep 17 00:00:00 2001 From: Rex Zhu Date: Fri, 22 Jun 2018 14:12:59 +0800 Subject: [PATCH] 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 Signed-off-by: Rex Zhu Signed-off-by: Alex Deucher --- .../gpu/drm/amd/include/kgd_pp_interface.h | 7 ++++--- drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 20 +++++++++++++++++++ 2 files changed, 24 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/include/kgd_pp_interface.h b/drivers/gpu/drm/amd/include/kgd_pp_interface.h index 99ee3edd1609..6a41b81c7325 100644 --- 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 b72cc644d4e7..145e5c403bea 100644 --- 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, }; -- 2.39.5