diff options
| author | Rob Clark <robdclark@gmail.com> | 2016-05-17 22:44:49 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2016-07-16 17:09:05 +0300 |
| commit | 4cd33c48ea25ba17e9d0383fe914c3e58b48f7dd (patch) | |
| tree | ae23f5e63db11ceaa819bf06546d603a8b236a1d /drivers/gpu/drm/msm/msm_drv.c | |
| parent | b5b4c264df4d270819676b290cef9a11d04c35f0 (diff) | |
| download | linux-4cd33c48ea25ba17e9d0383fe914c3e58b48f7dd.tar.xz | |
drm/msm: add madvise ioctl
Doesn't do anything too interesting until we wire up shrinker. Pretty
much lifted from i915.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_drv.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_drv.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 435a8f90c290..00881f3ed32e 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -690,6 +690,44 @@ static int msm_ioctl_wait_fence(struct drm_device *dev, void *data, return msm_wait_fence(priv->gpu->fctx, args->fence, &timeout, true); } +static int msm_ioctl_gem_madvise(struct drm_device *dev, void *data, + struct drm_file *file) +{ + struct drm_msm_gem_madvise *args = data; + struct drm_gem_object *obj; + int ret; + + switch (args->madv) { + case MSM_MADV_DONTNEED: + case MSM_MADV_WILLNEED: + break; + default: + return -EINVAL; + } + + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + return ret; + + obj = drm_gem_object_lookup(file, args->handle); + if (!obj) { + ret = -ENOENT; + goto unlock; + } + + ret = msm_gem_madvise(obj, args->madv); + if (ret >= 0) { + args->retained = ret; + ret = 0; + } + + drm_gem_object_unreference(obj); + +unlock: + mutex_unlock(&dev->struct_mutex); + return ret; +} + static const struct drm_ioctl_desc msm_ioctls[] = { DRM_IOCTL_DEF_DRV(MSM_GET_PARAM, msm_ioctl_get_param, DRM_AUTH|DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_GEM_NEW, msm_ioctl_gem_new, DRM_AUTH|DRM_RENDER_ALLOW), @@ -698,6 +736,7 @@ static const struct drm_ioctl_desc msm_ioctls[] = { DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_FINI, msm_ioctl_gem_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_GEM_SUBMIT, msm_ioctl_gem_submit, DRM_AUTH|DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_WAIT_FENCE, msm_ioctl_wait_fence, DRM_AUTH|DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(MSM_GEM_MADVISE, msm_ioctl_gem_madvise, DRM_AUTH|DRM_RENDER_ALLOW), }; static const struct vm_operations_struct vm_ops = { |