evie/android_kernel_oneplus_msm8998
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drm/msm-hyp: overwrite hyp ioctls used by libgbm

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Handle ioctls called by libgbm in the virtual kernel driver
to support front-end library and avoid modifying libgbm.

Change-Id: Ie4e567cea7338b4ba68080decf85dfa45e040dac
Signed-off-by: Camus Wong <camusw@codeaurora.org>
This commit is contained in:
Camus Wong 2018-02-16 15:05:57 -05:00
parent 99b73ed59a
commit 74f60692b1
1 changed files with 25 additions and 1 deletions
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26
drivers/gpu/drm/msm-hyp/msm_drv_hyp.c
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@ -355,11 +355,35 @@ static int msm_ioctl_query_client_id(struct drm_device *dev, void *data,
return ret;
}
static long msm_drm_ioctl(struct file *filp,
unsigned int cmd, unsigned long arg)
{
switch (cmd) {
case DRM_IOCTL_PRIME_FD_TO_HANDLE:
{
struct drm_prime_handle cmd_data;
if (copy_from_user(&cmd_data, (void __user *)arg,
sizeof(struct drm_prime_handle)) != 0)
return -EFAULT;
cmd_data.handle = cmd_data.fd;
if (copy_to_user((void __user *)arg, &cmd_data,
sizeof(struct drm_prime_handle)) != 0)
return -EFAULT;
return 0;
}
case DRM_IOCTL_GEM_CLOSE:
return 0;
default:
return drm_ioctl(filp, cmd, arg);
}
}
static const struct file_operations fops = {
.owner = THIS_MODULE,
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
.unlocked_ioctl = msm_drm_ioctl,
.poll = drm_poll,
.read = drm_read,
.write = msm_drm_write,