[PATCH 6/8] drm/i915: Allow up to 32KB stride on SKL+ "sprites"

Ville Syrjala
2017-12-22T19:22:56Z

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

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>
---
drivers/gpu/drm/i915/intel_sprite.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index cb06acff283d..94188488db05 100644
--- 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_plane *plane,
struct drm_rect *src = &state->base.src;
struct drm_rect *dst = &state->base.dst;
const struct drm_rect *clip = &state->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_plane *plane,
}

/* 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;
}
--
2.13.6