drm/amd/powerplay: fix the confusing ppfeature mask calculations

Simplify the ppfeature mask calculations.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
index 5479125..6d8e960 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
@@ -4407,9 +4407,9 @@ static int vega10_set_ppfeature_status(struct pp_hwmgr *hwmgr, uint64_t new_ppfe
                return ret;
 
        features_to_disable =
-               (features_enabled ^ new_ppfeature_masks) & features_enabled;
+               features_enabled & ~new_ppfeature_masks;
        features_to_enable =
-               (features_enabled ^ new_ppfeature_masks) ^ features_to_disable;
+               ~features_enabled & new_ppfeature_masks;
 
        pr_debug("features_to_disable 0x%llx\n", features_to_disable);
        pr_debug("features_to_enable 0x%llx\n", features_to_enable);

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c
index 6c8e786..bdb48e9 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c
@@ -2009,9 +2009,9 @@ static int vega12_set_ppfeature_status(struct pp_hwmgr *hwmgr, uint64_t new_ppfe
                return ret;
 
        features_to_disable =
-               (features_enabled ^ new_ppfeature_masks) & features_enabled;
+               features_enabled & ~new_ppfeature_masks;
        features_to_enable =
-               (features_enabled ^ new_ppfeature_masks) ^ features_to_disable;
+               ~features_enabled & new_ppfeature_masks;
 
        pr_debug("features_to_disable 0x%llx\n", features_to_disable);
        pr_debug("features_to_enable 0x%llx\n", features_to_enable);

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
index c95e0f3..fae95d9 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
@@ -3084,9 +3084,9 @@ static int vega20_set_ppfeature_status(struct pp_hwmgr *hwmgr, uint64_t new_ppfe
                return ret;
 
        features_to_disable =
-               (features_enabled ^ new_ppfeature_masks) & features_enabled;
+               features_enabled & ~new_ppfeature_masks;
        features_to_enable =
-               (features_enabled ^ new_ppfeature_masks) ^ features_to_disable;
+               ~features_enabled & new_ppfeature_masks;
 
        pr_debug("features_to_disable 0x%llx\n", features_to_disable);
        pr_debug("features_to_enable 0x%llx\n", features_to_enable);