diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index eb68abf6a8e9..41f26ab46501 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4596,7 +4596,8 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv, min_disp_buf_needed = res_blocks; } - if (res_blocks >= ddb_allocation || res_lines > 31 || + if ((level > 0 && res_lines > 31) || + res_blocks >= ddb_allocation || min_disp_buf_needed >= ddb_allocation) { *enabled = false; @@ -4617,8 +4618,9 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv, } } + /* The number of lines are ignored for the level 0 watermark. */ + *out_lines = level ? res_lines : 0; *out_blocks = res_blocks; - *out_lines = res_lines; *enabled = true; return 0; |