From: Ville Syrjälä <ville.syrj...@linux.intel.com>
The current code can't deal with framebuffers with an offset. Return an
error when trying to create such a framebuffer until the rest of the
code is fixed to handle them.
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
I had an earlier version that actually added the handling for the offsets,
but as I still haven't managed to write test cases for that, I decided
that just refusing any offset is a good enough solution for now.
drivers/gpu/drm/i915/intel_display.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index f431f2a..a3496f5 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8276,6 +8276,10 @@ int intel_framebuffer_init(struct drm_device *dev,
return -EINVAL;
}
+ /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
+ if (mode_cmd->offsets[0] != 0)
+ return -EINVAL;
+
ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs);
if (ret) {
DRM_ERROR("framebuffer init failed %d\n", ret);
--
1.7.8.6
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