From cdd59983118c02d9c5ba0c116ded1faef47ec452 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 8 Sep 2010 16:30:16 +0100 Subject: [PATCH] drm/i915: Drop crtc->fb pin on disable. In order to handle disable_functions() where the framebuffer is decoupled from the crtc we need to unpin the fb in order to prevent a leak. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29857 Reported-by: Sitsofe Wheeler Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/intel_display.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 461bf4879e0a..e6f7ebfe86e5 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2487,6 +2487,20 @@ static void intel_crtc_dpms(struct drm_crtc *crtc, int mode) } } +static void intel_crtc_disable(struct drm_crtc *crtc) +{ + struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; + struct drm_device *dev = crtc->dev; + + crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF); + + if (crtc->fb) { + mutex_lock(&dev->struct_mutex); + i915_gem_object_unpin(to_intel_framebuffer(crtc->fb)->obj); + mutex_unlock(&dev->struct_mutex); + } +} + /* Prepare for a mode set. * * Note we could be a lot smarter here. We need to figure out which outputs @@ -5163,6 +5177,7 @@ static struct drm_crtc_helper_funcs intel_helper_funcs = { .mode_set_base = intel_pipe_set_base, .mode_set_base_atomic = intel_pipe_set_base_atomic, .load_lut = intel_crtc_load_lut, + .disable = intel_crtc_disable, }; static const struct drm_crtc_funcs intel_crtc_funcs = {