drm/amd/display: Clean up GFX9 tiling_flags path.

We're unconditionally using modifiers internally for GFX9+ now.
Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

@@ -3869,57 +3869,6 @@ validate_dcc(struct amdgpu_device *adev,
 	return 0;
 }
 
-static void
-fill_dcc_params_from_flags(const struct amdgpu_framebuffer *afb,
-			   struct dc_plane_dcc_param *dcc,
-			   struct dc_plane_address *address,
-			   const uint64_t flags, bool force_disable_dcc)
-{
-	uint64_t dcc_address;
-	uint64_t plane_address = afb->address + afb->base.offsets[0];
-	uint32_t offset = AMDGPU_TILING_GET(flags, DCC_OFFSET_256B);
-	uint32_t i64b = AMDGPU_TILING_GET(flags, DCC_INDEPENDENT_64B) != 0;
-
-	if (!offset || force_disable_dcc)
-		return;
-
-	dcc->enable = 1;
-	dcc->meta_pitch = AMDGPU_TILING_GET(flags, DCC_PITCH_MAX) + 1;
-	dcc->independent_64b_blks = i64b;
-
-	dcc_address = plane_address + (uint64_t)offset * 256;
-	address->grph.meta_addr.low_part = lower_32_bits(dcc_address);
-	address->grph.meta_addr.high_part = upper_32_bits(dcc_address);
-}
-
-
-static int
-fill_gfx9_plane_attributes_from_flags(struct amdgpu_device *adev,
-				      const struct amdgpu_framebuffer *afb,
-				      const enum surface_pixel_format format,
-				      const enum dc_rotation_angle rotation,
-				      const struct plane_size *plane_size,
-				      union dc_tiling_info *tiling_info,
-				      struct dc_plane_dcc_param *dcc,
-				      struct dc_plane_address *address,
-				      uint64_t tiling_flags,
-				      bool force_disable_dcc)
-{
-	int ret;
-
-	fill_gfx9_tiling_info_from_device(adev, tiling_info);
-
-	tiling_info->gfx9.swizzle =
-		AMDGPU_TILING_GET(tiling_flags, SWIZZLE_MODE);
-
-	fill_dcc_params_from_flags(afb, dcc, address, tiling_flags, force_disable_dcc);
-	ret = validate_dcc(adev, format, rotation, tiling_info, dcc, address, plane_size);
-	if (ret)
-		return ret;
-
-	return 0;
-}
-
 static bool
 modifier_has_dcc(uint64_t modifier)
 {
@@ -4487,22 +4436,13 @@ fill_plane_buffer_attributes(struct amdgpu_device *adev,
 	}
 
 	if (adev->family >= AMDGPU_FAMILY_AI) {
-		if (afb->base.flags & DRM_MODE_FB_MODIFIERS) {
-			ret = fill_gfx9_plane_attributes_from_modifiers(adev, afb, format,
-									rotation, plane_size,
-									tiling_info, dcc,
-									address,
-									force_disable_dcc);
-			if (ret)
-				return ret;
-		} else {
-			ret = fill_gfx9_plane_attributes_from_flags(adev, afb, format, rotation,
-								    plane_size, tiling_info, dcc,
-								    address, tiling_flags,
-								    force_disable_dcc);
-			if (ret)
-				return ret;
-		}
+		ret = fill_gfx9_plane_attributes_from_modifiers(adev, afb, format,
+								rotation, plane_size,
+								tiling_info, dcc,
+								address,
+								force_disable_dcc);
+		if (ret)
+			return ret;
 	} else {
 		fill_gfx8_tiling_info_from_flags(tiling_info, tiling_flags);
 	}