From: Ville Syrjälä <[email protected]>

Move the "does this modifier support async flips?" check
to be handled by the platform specific plane code instead
of having a big mess in common code.

Signed-off-by: Ville Syrjälä <[email protected]>
---
 drivers/gpu/drm/i915/display/i9xx_plane.c     |  9 +++
 .../gpu/drm/i915/display/intel_atomic_plane.c |  5 ++
 .../gpu/drm/i915/display/intel_atomic_plane.h |  1 +
 drivers/gpu/drm/i915/display/intel_display.c  | 53 +-----------
 .../drm/i915/display/intel_display_types.h    |  1 +
 .../drm/i915/display/skl_universal_plane.c    | 80 +++++++++++++++++++
 6 files changed, 97 insertions(+), 52 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/i9xx_plane.c 
b/drivers/gpu/drm/i915/display/i9xx_plane.c
index 17a1e3801a85..7455da863a26 100644
--- a/drivers/gpu/drm/i915/display/i9xx_plane.c
+++ b/drivers/gpu/drm/i915/display/i9xx_plane.c
@@ -672,6 +672,11 @@ vlv_primary_disable_flip_done(struct intel_plane *plane)
        spin_unlock_irq(&i915->irq_lock);
 }
 
+static bool i9xx_plane_can_async_flip(u64 modifier)
+{
+       return modifier == I915_FORMAT_MOD_X_TILED;
+}
+
 static bool i9xx_plane_get_hw_state(struct intel_plane *plane,
                                    enum pipe *pipe)
 {
@@ -958,19 +963,23 @@ intel_primary_plane_create(struct drm_i915_private 
*dev_priv, enum pipe pipe)
                plane->async_flip = vlv_primary_async_flip;
                plane->enable_flip_done = vlv_primary_enable_flip_done;
                plane->disable_flip_done = vlv_primary_disable_flip_done;
+               plane->can_async_flip = i9xx_plane_can_async_flip;
        } else if (IS_BROADWELL(dev_priv)) {
                plane->need_async_flip_toggle_wa = true;
                plane->async_flip = g4x_primary_async_flip;
                plane->enable_flip_done = bdw_primary_enable_flip_done;
                plane->disable_flip_done = bdw_primary_disable_flip_done;
+               plane->can_async_flip = i9xx_plane_can_async_flip;
        } else if (DISPLAY_VER(dev_priv) >= 7) {
                plane->async_flip = g4x_primary_async_flip;
                plane->enable_flip_done = ivb_primary_enable_flip_done;
                plane->disable_flip_done = ivb_primary_disable_flip_done;
+               plane->can_async_flip = i9xx_plane_can_async_flip;
        } else if (DISPLAY_VER(dev_priv) >= 5) {
                plane->async_flip = g4x_primary_async_flip;
                plane->enable_flip_done = ilk_primary_enable_flip_done;
                plane->disable_flip_done = ilk_primary_disable_flip_done;
+               plane->can_async_flip = i9xx_plane_can_async_flip;
        }
 
        modifiers = intel_fb_plane_get_modifiers(dev_priv, 
INTEL_PLANE_CAP_TILING_X);
diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c 
b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
index b7e462075ded..596f8662200a 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
@@ -155,6 +155,11 @@ bool intel_plane_needs_physical(struct intel_plane *plane)
                DISPLAY_INFO(i915)->cursor_needs_physical;
 }
 
+bool intel_plane_can_async_flip(struct intel_plane *plane, u64 modifier)
+{
+       return plane->can_async_flip && plane->can_async_flip(modifier);
+}
+
 unsigned int intel_adjusted_rate(const struct drm_rect *src,
                                 const struct drm_rect *dst,
                                 unsigned int rate)
diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.h 
b/drivers/gpu/drm/i915/display/intel_atomic_plane.h
index 0f982f452ff3..fb87b3353ab0 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic_plane.h
+++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.h
@@ -19,6 +19,7 @@ struct intel_plane;
 struct intel_plane_state;
 enum plane_id;
 
+bool intel_plane_can_async_flip(struct intel_plane *plane, u64 modifier);
 unsigned int intel_adjusted_rate(const struct drm_rect *src,
                                 const struct drm_rect *dst,
                                 unsigned int rate);
diff --git a/drivers/gpu/drm/i915/display/intel_display.c 
b/drivers/gpu/drm/i915/display/intel_display.c
index 70a5e5357a14..2afd10bbe7b8 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -6486,58 +6486,7 @@ static int intel_async_flip_check_hw(struct 
intel_atomic_state *state, struct in
                if (!plane->async_flip)
                        continue;
 
-               /*
-                * FIXME: This check is kept generic for all platforms.
-                * Need to verify this for all gen9 platforms to enable
-                * this selectively if required.
-                */
-               switch (new_plane_state->hw.fb->modifier) {
-               case DRM_FORMAT_MOD_LINEAR:
-                       /*
-                        * FIXME: Async on Linear buffer is supported on ICL as
-                        * but with additional alignment and fbc restrictions
-                        * need to be taken care of. These aren't applicable for
-                        * gen12+.
-                        */
-                       if (DISPLAY_VER(i915) < 12) {
-                               drm_dbg_kms(&i915->drm,
-                                           "[PLANE:%d:%s] Modifier 0x%llx does 
not support async flip on display ver %d\n",
-                                           plane->base.base.id, 
plane->base.name,
-                                           new_plane_state->hw.fb->modifier, 
DISPLAY_VER(i915));
-                               return -EINVAL;
-                       }
-                       break;
-               case I915_FORMAT_MOD_Y_TILED_CCS:
-               case I915_FORMAT_MOD_Yf_TILED_CCS:
-                       /*
-                        * Display WA #0731: skl
-                        * WaDisableRCWithAsyncFlip: skl
-                        * "When render decompression is enabled, hardware
-                        *  internally converts the Async flips to Sync flips."
-                        *
-                        * Display WA #1159: glk
-                        * "Async flip with render compression may result in
-                        *  intermittent underrun corruption."
-                        */
-                       if (DISPLAY_VER(i915) < 11) {
-                               drm_dbg_kms(&i915->drm,
-                                           "[PLANE:%d:%s] Modifier 0x%llx does 
not support async flip on display ver %d\n",
-                                           plane->base.base.id, 
plane->base.name,
-                                           new_plane_state->hw.fb->modifier, 
DISPLAY_VER(i915));
-                               return -EINVAL;
-                       }
-                       break;
-               case I915_FORMAT_MOD_X_TILED:
-               case I915_FORMAT_MOD_Y_TILED:
-               case I915_FORMAT_MOD_Yf_TILED:
-               case I915_FORMAT_MOD_4_TILED:
-               case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS:
-               case I915_FORMAT_MOD_4_TILED_MTL_RC_CCS:
-               case I915_FORMAT_MOD_4_TILED_DG2_RC_CCS:
-               case I915_FORMAT_MOD_4_TILED_BMG_CCS:
-               case I915_FORMAT_MOD_4_TILED_LNL_CCS:
-                       break;
-               default:
+               if (!intel_plane_can_async_flip(plane, 
new_plane_state->hw.fb->modifier)) {
                        drm_dbg_kms(&i915->drm,
                                    "[PLANE:%d:%s] Modifier 0x%llx does not 
support async flip\n",
                                    plane->base.base.id, plane->base.name,
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h 
b/drivers/gpu/drm/i915/display/intel_display_types.h
index 2bb1fa64da2f..3af2864c7885 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1456,6 +1456,7 @@ struct intel_plane {
        unsigned int (*max_stride)(struct intel_plane *plane,
                                   u32 pixel_format, u64 modifier,
                                   unsigned int rotation);
+       bool (*can_async_flip)(u64 modifier);
        /* Write all non-self arming plane registers */
        void (*update_noarm)(struct intel_dsb *dsb,
                             struct intel_plane *plane,
diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c 
b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index 0c09f76f8369..ca82cc55802e 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -504,6 +504,79 @@ skl_plane_max_stride(struct intel_plane *plane,
                                max_pixels, max_bytes);
 }
 
+static bool tgl_plane_can_async_flip(u64 modifier)
+{
+       switch (modifier) {
+       case DRM_FORMAT_MOD_LINEAR:
+       case I915_FORMAT_MOD_X_TILED:
+       case I915_FORMAT_MOD_Y_TILED:
+       case I915_FORMAT_MOD_4_TILED:
+       case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS:
+       case I915_FORMAT_MOD_4_TILED_MTL_RC_CCS:
+       case I915_FORMAT_MOD_4_TILED_DG2_RC_CCS:
+       case I915_FORMAT_MOD_4_TILED_BMG_CCS:
+       case I915_FORMAT_MOD_4_TILED_LNL_CCS:
+               return true;
+       case I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS:
+       case I915_FORMAT_MOD_4_TILED_MTL_MC_CCS:
+       case I915_FORMAT_MOD_4_TILED_DG2_MC_CCS:
+       case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC:
+       case I915_FORMAT_MOD_4_TILED_MTL_RC_CCS_CC:
+       case I915_FORMAT_MOD_4_TILED_DG2_RC_CCS_CC:
+               return false;
+       default:
+               return false;
+       }
+}
+
+static bool icl_plane_can_async_flip(u64 modifier)
+{
+       switch (modifier) {
+       case DRM_FORMAT_MOD_LINEAR:
+               /*
+                * FIXME: Async on Linear buffer is supported on ICL
+                * but with additional alignment and fbc restrictions
+                * need to be taken care of.
+                */
+               return false;
+       case I915_FORMAT_MOD_X_TILED:
+       case I915_FORMAT_MOD_Y_TILED:
+       case I915_FORMAT_MOD_Yf_TILED:
+       case I915_FORMAT_MOD_Y_TILED_CCS:
+       case I915_FORMAT_MOD_Yf_TILED_CCS:
+               return true;
+       default:
+               return false;
+       }
+}
+
+static bool skl_plane_can_async_flip(u64 modifier)
+{
+       switch (modifier) {
+       case DRM_FORMAT_MOD_LINEAR:
+               return false;
+       case I915_FORMAT_MOD_X_TILED:
+       case I915_FORMAT_MOD_Y_TILED:
+       case I915_FORMAT_MOD_Yf_TILED:
+               return true;
+       case I915_FORMAT_MOD_Y_TILED_CCS:
+       case I915_FORMAT_MOD_Yf_TILED_CCS:
+               /*
+                * Display WA #0731: skl
+                * WaDisableRCWithAsyncFlip: skl
+                * "When render decompression is enabled, hardware
+                *  internally converts the Async flips to Sync flips."
+                *
+                * Display WA #1159: glk
+                * "Async flip with render compression may result in
+                *  intermittent underrun corruption."
+                */
+               return false;
+       default:
+               return false;
+       }
+}
+
 static u32 tgl_plane_min_alignment(struct intel_plane *plane,
                                   const struct drm_framebuffer *fb,
                                   int color_plane)
@@ -2621,6 +2694,13 @@ skl_universal_plane_create(struct drm_i915_private 
*dev_priv,
                plane->async_flip = skl_plane_async_flip;
                plane->enable_flip_done = skl_plane_enable_flip_done;
                plane->disable_flip_done = skl_plane_disable_flip_done;
+
+               if (DISPLAY_VER(dev_priv) >= 12)
+                       plane->can_async_flip = tgl_plane_can_async_flip;
+               else if (DISPLAY_VER(dev_priv) == 11)
+                       plane->can_async_flip = icl_plane_can_async_flip;
+               else
+                       plane->can_async_flip = skl_plane_can_async_flip;
        }
 
        if (DISPLAY_VER(dev_priv) >= 11)
-- 
2.45.2

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