diff options
| author | Gopikrishnaiah Anandan <agopik@codeaurora.org> | 2016-08-23 14:37:34 -0700 |
|---|---|---|
| committer | Gopikrishnaiah Anandan <agopik@codeaurora.org> | 2016-09-29 17:24:02 -0700 |
| commit | 079451794557c65deb223964dc97caf6d77dbf2a (patch) | |
| tree | 62f6ba5d6556a47c2f7842b48377245d3e919520 /include/uapi/drm | |
| parent | 861e42e106de8ef4bad4d219e553f6d24a2cdbd3 (diff) | |
drm/msm: add support for custom event notification
MDP hardware supports custom events which needs to be reported by driver
to user-space clients who request for notification. DRM framework
provides poll/read based interface to report the events to the
user-space clients. Change adds support to report msm driver events to
user-space clients.
Change-Id: I4ce75488ad1d1436cafb3451ebc7808961c6cab5
Signed-off-by: Gopikrishnaiah Anandan <agopik@codeaurora.org>
Diffstat (limited to 'include/uapi/drm')
| -rw-r--r-- | include/uapi/drm/msm_drm.h | 50 |
1 files changed, 48 insertions, 2 deletions
diff --git a/include/uapi/drm/msm_drm.h b/include/uapi/drm/msm_drm.h index 9ea8351e843b..fd1be42188cd 100644 --- a/include/uapi/drm/msm_drm.h +++ b/include/uapi/drm/msm_drm.h @@ -197,6 +197,39 @@ struct drm_msm_wait_fence { struct drm_msm_timespec timeout; /* in */ }; +/** + * struct drm_msm_event_req - Payload to event enable/disable ioctls. + * @object_id: DRM object id. Ex: for crtc pass crtc id. + * @object_type: DRM object type. Ex: for crtc set it to DRM_MODE_OBJECT_CRTC. + * @event: Event for which notification is being enabled/disabled. + * Ex: for Histogram set - DRM_EVENT_HISTOGRAM. + * @client_context: Opaque pointer that will be returned during event response + * notification. + * @index: Object index(ex: crtc index), optional for user-space to set. + * Driver will override value based on object_id and object_type. + */ +struct drm_msm_event_req { + __u32 object_id; + __u32 object_type; + __u32 event; + __u64 client_context; + __u32 index; +}; + +/** + * struct drm_msm_event_resp - payload returned when read is called for + * custom notifications. + * @base: Event type and length of complete notification payload. + * @info: Contains information about DRM that which raised this event. + * @data: Custom payload that driver returns for event type. + * size of data = base.length - (sizeof(base) + sizeof(info)) + */ +struct drm_msm_event_resp { + struct drm_event base; + struct drm_msm_event_req info; + __u8 data[]; +}; + #define DRM_MSM_GET_PARAM 0x00 /* placeholder: #define DRM_MSM_SET_PARAM 0x01 @@ -208,7 +241,17 @@ struct drm_msm_wait_fence { #define DRM_MSM_GEM_SUBMIT 0x06 #define DRM_MSM_WAIT_FENCE 0x07 #define DRM_SDE_WB_CONFIG 0x08 -#define DRM_MSM_NUM_IOCTLS 0x09 +#define DRM_MSM_REGISTER_EVENT 0x09 +#define DRM_MSM_DEREGISTER_EVENT 0x0A +#define DRM_MSM_NUM_IOCTLS 0x0B + +/** + * Currently DRM framework supports only VSYNC event. + * Starting the custom events at 0xff to provide space for DRM + * framework to add new events. + */ +#define DRM_EVENT_HISTOGRAM 0xff +#define DRM_EVENT_AD 0x100 #define DRM_IOCTL_MSM_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GET_PARAM, struct drm_msm_param) #define DRM_IOCTL_MSM_GEM_NEW DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GEM_NEW, struct drm_msm_gem_new) @@ -219,5 +262,8 @@ struct drm_msm_wait_fence { #define DRM_IOCTL_MSM_WAIT_FENCE DRM_IOW (DRM_COMMAND_BASE + DRM_MSM_WAIT_FENCE, struct drm_msm_wait_fence) #define DRM_IOCTL_SDE_WB_CONFIG \ DRM_IOW((DRM_COMMAND_BASE + DRM_SDE_WB_CONFIG), struct sde_drm_wb_cfg) - +#define DRM_IOCTL_MSM_REGISTER_EVENT DRM_IOW((DRM_COMMAND_BASE + \ + DRM_MSM_REGISTER_EVENT), struct drm_msm_event_req) +#define DRM_IOCTL_MSM_DEREGISTER_EVENT DRM_IOW((DRM_COMMAND_BASE + \ + DRM_MSM_DEREGISTER_EVENT), struct drm_msm_event_req) #endif /* __MSM_DRM_H__ */ |