diff options
| author | Boris Brezillon <boris.brezillon@collabora.com> | 2025-09-17 20:18:37 +0100 |
|---|---|---|
| committer | Steven Price <steven.price@arm.com> | 2025-09-18 14:09:47 +0100 |
| commit | b060004f06ae0a3064bddb87a3f8ad13f859fcf3 (patch) | |
| tree | 15959bc9359863b977e887270a268e3bfb788edf /include/uapi/drm | |
| parent | 0bf37f45d5c472aebdf32da64775cac1110c085c (diff) | |
drm/panfrost: Introduce uAPI for JM context creation
The new uAPI lets user space query the KM driver for the available
priorities a job can be given at submit time. These are managed through
the notion of a context, for which we also provide new creation and
destruction ioctls.
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250917191859.500279-2-adrian.larumbe@collabora.com
Diffstat (limited to 'include/uapi/drm')
| -rw-r--r-- | include/uapi/drm/panfrost_drm.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/include/uapi/drm/panfrost_drm.h b/include/uapi/drm/panfrost_drm.h index ed67510395bd..e8b47c9f6976 100644 --- a/include/uapi/drm/panfrost_drm.h +++ b/include/uapi/drm/panfrost_drm.h @@ -22,6 +22,8 @@ extern "C" { #define DRM_PANFROST_PERFCNT_DUMP 0x07 #define DRM_PANFROST_MADVISE 0x08 #define DRM_PANFROST_SET_LABEL_BO 0x09 +#define DRM_PANFROST_JM_CTX_CREATE 0x0a +#define DRM_PANFROST_JM_CTX_DESTROY 0x0b #define DRM_IOCTL_PANFROST_SUBMIT DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_SUBMIT, struct drm_panfrost_submit) #define DRM_IOCTL_PANFROST_WAIT_BO DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_WAIT_BO, struct drm_panfrost_wait_bo) @@ -31,6 +33,8 @@ extern "C" { #define DRM_IOCTL_PANFROST_GET_BO_OFFSET DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_GET_BO_OFFSET, struct drm_panfrost_get_bo_offset) #define DRM_IOCTL_PANFROST_MADVISE DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_MADVISE, struct drm_panfrost_madvise) #define DRM_IOCTL_PANFROST_SET_LABEL_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_SET_LABEL_BO, struct drm_panfrost_set_label_bo) +#define DRM_IOCTL_PANFROST_JM_CTX_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_JM_CTX_CREATE, struct drm_panfrost_jm_ctx_create) +#define DRM_IOCTL_PANFROST_JM_CTX_DESTROY DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_JM_CTX_DESTROY, struct drm_panfrost_jm_ctx_destroy) /* * Unstable ioctl(s): only exposed when the unsafe unstable_ioctls module @@ -71,6 +75,12 @@ struct drm_panfrost_submit { /** A combination of PANFROST_JD_REQ_* */ __u32 requirements; + + /** JM context handle. Zero if you want to use the default context. */ + __u32 jm_ctx_handle; + + /** Padding field. MBZ. */ + __u32 pad; }; /** @@ -177,6 +187,7 @@ enum drm_panfrost_param { DRM_PANFROST_PARAM_AFBC_FEATURES, DRM_PANFROST_PARAM_SYSTEM_TIMESTAMP, DRM_PANFROST_PARAM_SYSTEM_TIMESTAMP_FREQUENCY, + DRM_PANFROST_PARAM_ALLOWED_JM_CTX_PRIORITIES, }; struct drm_panfrost_get_param { @@ -299,6 +310,45 @@ struct panfrost_dump_registers { __u32 value; }; +enum drm_panfrost_jm_ctx_priority { + /** + * @PANFROST_JM_CTX_PRIORITY_LOW: Low priority context. + */ + PANFROST_JM_CTX_PRIORITY_LOW = 0, + + /** + * @PANFROST_JM_CTX_PRIORITY_MEDIUM: Medium priority context. + */ + PANFROST_JM_CTX_PRIORITY_MEDIUM, + + /** + * @PANFROST_JM_CTX_PRIORITY_HIGH: High priority context. + * + * Requires CAP_SYS_NICE or DRM_MASTER. + */ + PANFROST_JM_CTX_PRIORITY_HIGH, +}; + +struct drm_panfrost_jm_ctx_create { + /** @handle: Handle of the created JM context */ + __u32 handle; + + /** @priority: Context priority (see enum drm_panfrost_jm_ctx_priority). */ + __u32 priority; +}; + +struct drm_panfrost_jm_ctx_destroy { + /** + * @handle: Handle of the JM context to destroy. + * + * Must be a valid context handle returned by DRM_IOCTL_PANTHOR_JM_CTX_CREATE. + */ + __u32 handle; + + /** @pad: Padding field, MBZ. */ + __u32 pad; +}; + #if defined(__cplusplus) } #endif |