As this debugs entry can be used to set arbitrary value to next_seqno, use i915_gem_seqno_init to set the next_seqno.
Signed-off-by: Mika Kuoppala <[email protected]> --- drivers/gpu/drm/i915/i915_debugfs.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 7047c4a..e669e2e 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -903,12 +903,17 @@ i915_next_seqno_write(struct file *filp, if (ret) return ret; - if (i915_seqno_passed(val, dev_priv->next_seqno)) { - dev_priv->next_seqno = val; - DRM_DEBUG_DRIVER("Advancing seqno to %u\n", val); - } else { - ret = -EINVAL; - } + ret = i915_gem_init_seqno(dev, val - 1); + if (ret) + return ret; + + dev_priv->next_seqno = val; + + /* Carefully set the last_seqno value so that + * wrap detection still works */ + dev_priv->last_seqno = val - 1; + if (dev_priv->last_seqno == 0) + dev_priv->last_seqno--; mutex_unlock(&dev->struct_mutex); -- 1.7.9.5 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
