3.11-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
commit f2f5f771c5fc0fa252cde3d0d0452dcc785cc17a upstream.
On HSW enabling a plane on a disabled pipe may hang the entire system.
And there's no good reason for doing it ever, so just don't.
v2: Move the crtc active checks to intel_crtc_cursor_{set,move} to
avoid confusing people during modeset
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Tested-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_display.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6572,7 +6572,8 @@ static int intel_crtc_cursor_set(struct
intel_crtc->cursor_width = width;
intel_crtc->cursor_height = height;
- intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
+ if (intel_crtc->active)
+ intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
return 0;
fail_unpin:
@@ -6591,7 +6592,8 @@ static int intel_crtc_cursor_move(struct
intel_crtc->cursor_x = x;
intel_crtc->cursor_y = y;
- intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
+ if (intel_crtc->active)
+ intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
return 0;
}
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html