From: Boris Brezillon <boris.brezil...@collabora.com>
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, which besides a priority, codifies the list
of L2 caches, shading cores and tiler units a job is allowed to use,
for all three of the available device job slots.
Signed-off-by: Boris Brezillon <boris.brezil...@collabora.com>
Signed-off-by: Adrián Larumbe <adrian.laru...@collabora.com>
---
include/uapi/drm/panfrost_drm.h | 93 +++++++++++++++++++++++++++++++++
1 file changed, 93 insertions(+)
diff --git a/include/uapi/drm/panfrost_drm.h b/include/uapi/drm/panfrost_drm.h
index ed67510395bd..2d8b32448e68 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 +310,88 @@ 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,
+};
+
+#define PANFROST_JS_FLAG_ENABLED (1 << 0)
+
+struct drm_panfrost_js_ctx_info {
+ /** @flags: Combination of PANFROST_JS_FLAG_xxx values */
+ __u32 flags;
+
+ /** @priority: Context priority (see enum
drm_panfrost_jm_ctx_priority). */
+ __u8 priority;
+
+ /**
+ * @tiler_mask: Mask encoding tiler units that can be used by the job
slot
+ *
+ * When this field is zero, it means the tiler won't be used.
+ *
+ * The bits set here should also be set in
drm_panthor_gpu_info::tiler_present.
+ */
+ __u8 tiler_mask;
+
+ /**
+ * @l2_mask: Mask encoding L2 caches that can be used by the job slot
+ *
+ * The bits set here should also be set in
drm_panthor_gpu_info::l2_present.:
+ */
+ __u16 l2_mask;
+
+ /**
+ * @core_mask: Mask encoding cores that can be used by the job slot
+ *
+ * When this field is zero, it means the queue won't be used.
+ *
+ * The bits set here should also be set in
drm_panthor_gpu_info::shader_present.
+ */
+ __u64 core_mask;
+};
+
+struct drm_panfrost_jm_ctx_create {
+ /** @handle: Handle of the created JM context */
+ __u32 handle;
+
+ /** @pad: Padding field, MBZ. */
+ __u32 pad;
+
+ /**
+ * @slots: Job slots
+ *
+ * This field must be greater than zero and less than 8 (only three
slots
+ * available).
+ */
+ struct drm_panfrost_js_ctx_info slots[3];
+};
+
+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
--
2.50.0
