From e64e6bd0f46c78b53b236474f59bd1290b834c89 Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Mon, 9 Nov 2015 20:16:26 +0200 Subject: [PATCH] drm/i915: get runtime PM reference around GEM set_tiling IOCTL After fixing the same issue in the set_caching IOCTL and Chris' request to check out the possibilities for an improved RPM ref handling I noticed that we have the same issue in the set_tiling IOCTL. Fix this up.I didn't see any bug reports about this one, but the GTT unbind operation on this path accesses the HW, which needs the ref. Signed-off-by: Imre Deak Reviewed-by: Chris Wilson Link: http://patchwork.freedesktop.org/patch/msgid/1447092986-11165-1-git-send-email-imre.deak@intel.com --- drivers/gpu/drm/i915/i915_gem_tiling.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c index 8a6717c..7410f6c 100644 --- a/drivers/gpu/drm/i915/i915_gem_tiling.c +++ b/drivers/gpu/drm/i915/i915_gem_tiling.c @@ -176,6 +176,8 @@ i915_gem_set_tiling(struct drm_device *dev, void *data, return -EINVAL; } + intel_runtime_pm_get(dev_priv); + mutex_lock(&dev->struct_mutex); if (obj->pin_display || obj->framebuffer_references) { ret = -EBUSY; @@ -269,6 +271,8 @@ err: drm_gem_object_unreference(&obj->base); mutex_unlock(&dev->struct_mutex); + intel_runtime_pm_put(dev_priv); + return ret; } -- 2.7.4