From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Fri, 22 Dec 2017 21:22:29 +0200
Subject: drm/i915: Allow up to 32KB stride on SKL+ "sprites"
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Git-commit: 8a97bbcce8c416063b2bdec978d3b242a59de9fb
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

SKL+ "sprites" no longer have 16KB max stride limit that earlier
platforms had. Bump up the limit to 32KB.

Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Cc: Daniel Stone <daniels@collabora.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171222192231.17981-7-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/i915/intel_sprite.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -865,6 +865,7 @@ intel_check_sprite_plane(struct intel_pl
 	struct drm_rect *src = &state->base.src;
 	struct drm_rect *dst = &state->base.dst;
 	struct drm_rect clip = {};
+	int max_stride = INTEL_GEN(dev_priv) >= 9 ? 32768 : 16384;
 	int hscale, vscale;
 	int max_scale, min_scale;
 	bool can_scale;
@@ -885,7 +886,7 @@ intel_check_sprite_plane(struct intel_pl
 	}
 
 	/* FIXME check all gen limits */
-	if (fb->width < 3 || fb->height < 3 || fb->pitches[0] > 16384) {
+	if (fb->width < 3 || fb->height < 3 || fb->pitches[0] > max_stride) {
 		DRM_DEBUG_KMS("Unsuitable framebuffer for plane\n");
 		return -EINVAL;
 	}