From f7ddbf5581b474fe4a0a29244acaa1bf72234675 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Thu, 3 Mar 2022 16:52:15 -0800 Subject: drm/msm: Add SET_PARAM ioctl It was always expected to have a use for this some day, so we left a placeholder. Now we do. (And I expect another use in the not too distant future when we start allowing userspace to allocate GPU iova.) Signed-off-by: Rob Clark Link: https://lore.kernel.org/r/20220304005317.776110-3-robdclark@gmail.com --- drivers/gpu/drm/msm/msm_drv.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'drivers/gpu/drm/msm/msm_drv.c') diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 30fd18ca88c4..c4d90a9b7010 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -613,6 +613,25 @@ static int msm_ioctl_get_param(struct drm_device *dev, void *data, args->param, &args->value); } +static int msm_ioctl_set_param(struct drm_device *dev, void *data, + struct drm_file *file) +{ + struct msm_drm_private *priv = dev->dev_private; + struct drm_msm_param *args = data; + struct msm_gpu *gpu; + + if (args->pipe != MSM_PIPE_3D0) + return -EINVAL; + + gpu = priv->gpu; + + if (!gpu) + return -ENXIO; + + return gpu->funcs->set_param(gpu, file->driver_priv, + args->param, args->value); +} + static int msm_ioctl_gem_new(struct drm_device *dev, void *data, struct drm_file *file) { @@ -898,6 +917,7 @@ static int msm_ioctl_submitqueue_close(struct drm_device *dev, void *data, static const struct drm_ioctl_desc msm_ioctls[] = { DRM_IOCTL_DEF_DRV(MSM_GET_PARAM, msm_ioctl_get_param, DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(MSM_SET_PARAM, msm_ioctl_set_param, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_GEM_NEW, msm_ioctl_gem_new, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_GEM_INFO, msm_ioctl_gem_info, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_PREP, msm_ioctl_gem_cpu_prep, DRM_RENDER_ALLOW), -- cgit v1.2.3