[Intel-gfx] [PATCH v2 7/9] drm/i915/mtl: Add MTL for remapping CCS FBs

[Radhakrishna Sripada]

From: Clint Taylor <clinton.a.taylor at intel.com>

    Add support for remapping CCS FBs on MTL to remove the restriction
    of the power-of-two sized stride and the 2MB surface offset alignment
    for these FBs.

Signed-off-by: Clint Taylor <clinton.a.taylor at intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada at intel.com>
---
 drivers/gpu/drm/i915/display/intel_fb.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_fb.c b/drivers/gpu/drm/i915/display/intel_fb.c
index 799bdc81a6a9..fc4cb829e8af 100644
--- a/drivers/gpu/drm/i915/display/intel_fb.c
+++ b/drivers/gpu/drm/i915/display/intel_fb.c
@@ -1189,7 +1189,8 @@ bool intel_fb_needs_pot_stride_remap(const struct intel_framebuffer *fb)
 {
 	struct drm_i915_private *i915 = to_i915(fb->base.dev);
 
-	return IS_ALDERLAKE_P(i915) && fb->base.modifier != DRM_FORMAT_MOD_LINEAR;
+	return (IS_ALDERLAKE_P(i915) || DISPLAY_VER(i915) >= 14) &&
+	       fb->base.modifier != DRM_FORMAT_MOD_LINEAR;
 }
 
 static int intel_fb_pitch(const struct intel_framebuffer *fb, int color_plane, unsigned int rotation)
@@ -1325,9 +1326,10 @@ plane_view_scanout_stride(const struct intel_framebuffer *fb, int color_plane,
 			  unsigned int tile_width,
 			  unsigned int src_stride_tiles, unsigned int dst_stride_tiles)
 {
+	struct drm_i915_private *i915 = to_i915(fb->base.dev);
 	unsigned int stride_tiles;
 
-	if (IS_ALDERLAKE_P(to_i915(fb->base.dev)))
+	if (IS_ALDERLAKE_P(i915) || DISPLAY_VER(i915) >= 14)
 		stride_tiles = src_stride_tiles;
 	else
 		stride_tiles = dst_stride_tiles;
@@ -1521,7 +1523,8 @@ static void intel_fb_view_init(struct drm_i915_private *i915, struct intel_fb_vi
 	memset(view, 0, sizeof(*view));
 	view->gtt.type = view_type;
 
-	if (view_type == I915_GTT_VIEW_REMAPPED && IS_ALDERLAKE_P(i915))
+	if (view_type == I915_GTT_VIEW_REMAPPED &&
+	    (IS_ALDERLAKE_P(i915) || DISPLAY_VER(i915) >= 14))
 		view->gtt.remapped.plane_alignment = SZ_2M / PAGE_SIZE;
 }
 
-- 
2.34.1