diff options
| author | Jordan Crouse <jcrouse@codeaurora.org> | 2017-05-08 14:35:01 -0600 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2017-06-16 11:15:47 -0400 |
| commit | 49fd08baa36ac10b13ea7b23fc6bbee8b4a6fcfe (patch) | |
| tree | 9d167c6ce28adbf1aeed4bae9497dc315d96927c /drivers/gpu/drm/msm/msm_drv.c | |
| parent | e895c7bd31f5ca7dbd315001cfbdcaee98ee16c4 (diff) | |
drm/msm: Add hint to DRM_IOCTL_MSM_GEM_INFO to return an object IOVA
Modify the 'pad' member of struct drm_msm_gem_info to 'flags'. If the
user sets 'flags' to non-zero it means that they want a IOVA for the
GEM object instead of a mmap() offset. Return the iova in the 'offset'
member.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
[robclark: s/hint/flags in commit msg]
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 | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 18d02ccb6c9b..beb4f6b3ac70 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -699,6 +699,17 @@ static int msm_ioctl_gem_cpu_fini(struct drm_device *dev, void *data, return ret; } +static int msm_ioctl_gem_info_iova(struct drm_device *dev, + struct drm_gem_object *obj, uint64_t *iova) +{ + struct msm_drm_private *priv = dev->dev_private; + + if (!priv->gpu) + return -EINVAL; + + return msm_gem_get_iova(obj, priv->gpu->id, iova); +} + static int msm_ioctl_gem_info(struct drm_device *dev, void *data, struct drm_file *file) { @@ -706,14 +717,22 @@ static int msm_ioctl_gem_info(struct drm_device *dev, void *data, struct drm_gem_object *obj; int ret = 0; - if (args->pad) + if (args->flags & ~MSM_INFO_FLAGS) return -EINVAL; obj = drm_gem_object_lookup(file, args->handle); if (!obj) return -ENOENT; - args->offset = msm_gem_mmap_offset(obj); + if (args->flags & MSM_INFO_IOVA) { + uint64_t iova; + + ret = msm_ioctl_gem_info_iova(dev, obj, &iova); + if (!ret) + args->offset = iova; + } else { + args->offset = msm_gem_mmap_offset(obj); + } drm_gem_object_unreference_unlocked(obj); |