[Intel-xe] [PATCH v4 2/3] drm/xe/display: Enable remapped display page tables

[Juha-Pekka Heikkila]

Enable usage of remapped display page tables where needed.

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila at gmail.com>
---
 drivers/gpu/drm/xe/display/xe_fb_pin.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/xe/display/xe_fb_pin.c b/drivers/gpu/drm/xe/display/xe_fb_pin.c
index 8a1cb6c28eb0..e8e38091c8e6 100644
--- a/drivers/gpu/drm/xe/display/xe_fb_pin.c
+++ b/drivers/gpu/drm/xe/display/xe_fb_pin.c
@@ -88,6 +88,9 @@ static int __xe_pin_fb_vma_dpt(struct intel_framebuffer *fb,
 
 	if (view->type == I915_GTT_VIEW_NORMAL)
 		dpt_size = ALIGN(size / XE_PAGE_SIZE * 8, XE_PAGE_SIZE);
+	else if  (view->type == I915_GTT_VIEW_REMAPPED)
+		dpt_size = ALIGN(intel_remapped_info_size(&fb->remapped_view.gtt.remapped) * 8,
+				 XE_PAGE_SIZE);
 	else
 		/* display uses 4K tiles instead of bytes here, convert to entries.. */
 		dpt_size = ALIGN(intel_rotation_info_size(&view->rotated) * 8,
@@ -119,6 +122,18 @@ static int __xe_pin_fb_vma_dpt(struct intel_framebuffer *fb,
 
 			iosys_map_wr(&dpt->vmap, x * 8, u64, pte);
 		}
+	} else if (view->type == I915_GTT_VIEW_REMAPPED) {
+		const struct intel_remapped_info *remap_info = &view->remapped;
+		u32 i, dpt_ofs = 0;
+
+		for (i = 0; i < ARRAY_SIZE(remap_info->plane); i++)
+			write_dpt_remapped(bo, &dpt->vmap, &dpt_ofs,
+					   remap_info->plane[i].offset,
+					   remap_info->plane[i].width,
+					   remap_info->plane[i].height,
+					   remap_info->plane[i].src_stride,
+					   remap_info->plane[i].dst_stride);
+
 	} else {
 		const struct intel_rotation_info *rot_info = &view->rotated;
 		u32 i, dpt_ofs = 0;
@@ -240,12 +255,6 @@ static struct i915_vma *__xe_pin_fb_vma(struct intel_framebuffer *fb,
 	if (!vma)
 		return ERR_PTR(-ENODEV);
 
-	/* Remapped view is only required on ADL-P, which xe doesn't support. */
-	if (XE_WARN_ON(view->type == I915_GTT_VIEW_REMAPPED)) {
-		ret = -ENODEV;
-		goto err;
-	}
-
 	if (IS_DGFX(to_xe_device(bo->ttm.base.dev)) &&
 	    intel_fb_rc_ccs_cc_plane(&fb->base) >= 0 &&
 	    !(bo->flags & XE_BO_NEEDS_CPU_ACCESS)) {
-- 
2.25.1