From 64d03abe6ee36ec48e997743e9397ae160eb508a Mon Sep 17 00:00:00 2001 From: Tom St Denis Date: Tue, 5 Sep 2017 07:55:48 -0400 Subject: [PATCH] drm/amd/powerplay: Fix psm_set_user_performance_state() We now pass a pointer to a pointer which seems to be what they meant in the first place. The previous version was modifying a pointer passed by value. Fixes bug that was introduced by commit 332798d40c2e91:drm/amd/powerplay: delete eventmgr layer in poweprlay Signed-off-by: Tom St Denis Reviewed-By: Rex Zhu Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c | 4 ++-- drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c | 8 ++++---- drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.h | 2 +- 3 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c index c6157bcdf7d6..4f1b932361b2 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c @@ -294,7 +294,7 @@ int hwmgr_handle_task(struct pp_instance *handle, enum amd_pp_task task_id, { enum amd_pm_state_type ps; enum PP_StateUILabel requested_ui_label; - struct pp_power_state *requested_ps; + struct pp_power_state *requested_ps = NULL; if (input == NULL) { ret = -EINVAL; @@ -303,7 +303,7 @@ int hwmgr_handle_task(struct pp_instance *handle, enum amd_pp_task task_id, ps = *(unsigned long *)input; requested_ui_label = power_state_convert(ps); - ret = psm_set_user_performance_state(hwmgr, requested_ui_label, requested_ps); + ret = psm_set_user_performance_state(hwmgr, requested_ui_label, &requested_ps); if (ret) return ret; ret = psm_adjust_power_state_dynamic(hwmgr, false, requested_ps); diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c index 7656324957a8..167cdc321db2 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c @@ -188,19 +188,19 @@ int psm_set_performance_states(struct pp_hwmgr *hwmgr) int psm_set_user_performance_state(struct pp_hwmgr *hwmgr, enum PP_StateUILabel label_id, - struct pp_power_state *state) + struct pp_power_state **state) { int table_entries; int i; table_entries = hwmgr->num_ps; - state = hwmgr->ps; + *state = hwmgr->ps; restart_search: for (i = 0; i < table_entries; i++) { - if (state->classification.ui_label & label_id) + if ((*state)->classification.ui_label & label_id) return 0; - state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size); + *state = (struct pp_power_state *)((uintptr_t)*state + hwmgr->ps_size); } switch (label_id) { diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.h b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.h index aa44e60ec1b6..fa1b6825036a 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.h +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.h @@ -32,7 +32,7 @@ int psm_set_boot_states(struct pp_hwmgr *hwmgr); int psm_set_performance_states(struct pp_hwmgr *hwmgr); int psm_set_user_performance_state(struct pp_hwmgr *hwmgr, enum PP_StateUILabel label_id, - struct pp_power_state *state); + struct pp_power_state **state); int psm_adjust_power_state_dynamic(struct pp_hwmgr *hwmgr, bool skip, struct pp_power_state *new_ps); -- GitLab