From 45ece23016ccd86a4629c9f74e22f0c06afa88f5 Mon Sep 17 00:00:00 2001 From: "cpaul@redhat.com" Date: Fri, 14 Oct 2016 17:31:56 -0400 Subject: [PATCH] drm/i915/gen9: Add skl_wm_level_equals() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Helper we're going to be using for implementing verification of the wm levels in skl_verify_wm_level(). Signed-off-by: Lyude Reviewed-by: Paulo Zanoni Cc: Maarten Lankhorst Cc: Ville Syrjälä Cc: Matt Roper Cc: Paulo Zanoni Signed-off-by: Paulo Zanoni Link: http://patchwork.freedesktop.org/patch/msgid/1476480722-13015-9-git-send-email-cpaul@redhat.com --- drivers/gpu/drm/i915/intel_drv.h | 2 ++ drivers/gpu/drm/i915/intel_pm.c | 14 ++++++++++++++ 2 files changed, 16 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 925df51f67f1..c06a33e0ff19 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -1769,6 +1769,8 @@ void skl_pipe_wm_get_hw_state(struct drm_crtc *crtc, bool intel_can_enable_sagv(struct drm_atomic_state *state); int intel_enable_sagv(struct drm_i915_private *dev_priv); int intel_disable_sagv(struct drm_i915_private *dev_priv); +bool skl_wm_level_equals(const struct skl_wm_level *l1, + const struct skl_wm_level *l2); bool skl_ddb_allocation_equals(const struct skl_ddb_allocation *old, const struct skl_ddb_allocation *new, enum pipe pipe); diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 65277122a279..0a9e7f2045d4 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3886,6 +3886,20 @@ void skl_write_cursor_wm(struct intel_crtc *intel_crtc, &ddb->plane[pipe][PLANE_CURSOR]); } +bool skl_wm_level_equals(const struct skl_wm_level *l1, + const struct skl_wm_level *l2) +{ + if (l1->plane_en != l2->plane_en) + return false; + + /* If both planes aren't enabled, the rest shouldn't matter */ + if (!l1->plane_en) + return true; + + return (l1->plane_res_l == l2->plane_res_l && + l1->plane_res_b == l2->plane_res_b); +} + static inline bool skl_ddb_entries_overlap(const struct skl_ddb_entry *a, const struct skl_ddb_entry *b) { -- 2.20.1