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drm/msm: rework GEM_INFO ioctl

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Prep work to add a way to get/set the GEM objects debug name.

Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark
2018-11-29 09:54:42 -05:00
parent 7a93d5c38e
commit 789d2e5a77
2 changed files with 32 additions and 14 deletions
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28
drivers/gpu/drm/msm/msm_drv.c
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@@ -882,21 +882,31 @@ static int msm_ioctl_gem_info(struct drm_device *dev, void *data,
struct drm_gem_object *obj;
int ret = 0;
if (args->flags & ~MSM_INFO_FLAGS)
if (args->pad)
return -EINVAL;
switch (args->info) {
case MSM_INFO_GET_OFFSET:
case MSM_INFO_GET_IOVA:
/* value returned as immediate, not pointer, so len==0: */
if (args->len)
return -EINVAL;
break;
default:
return -EINVAL;
}
obj = drm_gem_object_lookup(file, args->handle);
if (!obj)
return -ENOENT;
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);
switch (args->info) {
case MSM_INFO_GET_OFFSET:
args->value = msm_gem_mmap_offset(obj);
break;
case MSM_INFO_GET_IOVA:
ret = msm_ioctl_gem_info_iova(dev, obj, &args->value);
break;
}
drm_gem_object_put_unlocked(obj);