From: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 4053ed93e73c..fbe71fb23c9e 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2509,6 +2509,25 @@ intel_fb_stride_alignment(const struct drm_framebuffer
*fb, int color_plane)
}
}
+static bool intel_plane_can_remap(const struct intel_plane_state *plane_state)
+{
+ struct intel_plane *plane = to_intel_plane(plane_state->base.plane);
+ struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
+ const struct drm_framebuffer *fb = plane_state->base.fb;
+ unsigned int alignment = intel_tile_size(dev_priv) - 1;
+ int i;
+
+ if (fb->modifier != DRM_FORMAT_MOD_LINEAR)
+ return true;
+
+ for (i = 0; i < fb->format->num_planes; i++) {
+ if (fb->pitches[i] & alignment)
+ return false;
+ }
+
+ return true;
+}
+
static bool intel_plane_needs_remap(const struct intel_plane_state
*plane_state)
{
struct intel_plane *plane = to_intel_plane(plane_state->base.plane);
@@ -2529,6 +2548,10 @@ static bool intel_plane_needs_remap(const struct
intel_plane_state *plane_state)
if (is_ccs_modifier(fb->modifier))
return false;
+ /* HACK: always remap */
+ if (intel_plane_can_remap(plane_state))
+ return true;
+
/* FIXME other color planes? */
stride = intel_fb_pitch(fb, 0, rotation);
max_stride = plane->max_stride(plane, fb->format->format,
--
2.19.2
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