drm/nouveau/core: import ioctl/event interfaces

This forms the basis for the new APIs that will be exposed to userspace,
giving it access to:

- Object method calls, the immediately useful of which is performance
  counters and the abiity to manipulate the ZBC tables.
- Information on the child classes an object supports, in order to avoid
  having to try all supported classes until successful.
- Notifications, which will be used in the future to inform the client
  if its channel was killed due to a lockup, etc.

This commit imports the interfaces, but are not currently used.  The DRM
portion of the driver will be ported to speak to the core using these
interfaces as much as possible.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

7 files changed, 27 insertions, 1 deletions

diff --git a/drivers/gpu/drm/nouveau/core/include/core/client.h b/drivers/gpu/drm/nouveau/core/include/core/client.h
index c66eac5..4fc6ab1 100644
--- a/drivers/gpu/drm/nouveau/core/include/core/client.h
+++ b/drivers/gpu/drm/nouveau/core/include/core/client.h
@@ -10,6 +10,11 @@ struct nouveau_client {
 	char name[32];
 	u32 debug;
 	struct nouveau_vm *vm;
+	bool super;
+	void *data;
+
+	int (*ntfy)(const void *, u32, const void *, u32);
+	struct nvkm_client_notify *notify[8];
 };
 
 static inline struct nouveau_client *
@@ -43,4 +48,10 @@ int  nouveau_client_init(struct nouveau_client *);
 int  nouveau_client_fini(struct nouveau_client *, bool suspend);
 const char *nouveau_client_name(void *obj);
 
+int nvkm_client_notify_new(struct nouveau_client *, struct nvkm_event *,
+			   void *data, u32 size);
+int nvkm_client_notify_del(struct nouveau_client *, int index);
+int nvkm_client_notify_get(struct nouveau_client *, int index);
+int nvkm_client_notify_put(struct nouveau_client *, int index);
+
 #endif
diff --git a/drivers/gpu/drm/nouveau/core/include/core/handle.h b/drivers/gpu/drm/nouveau/core/include/core/handle.h
index b4789a2..ceb67d7 100644
--- a/drivers/gpu/drm/nouveau/core/include/core/handle.h
+++ b/drivers/gpu/drm/nouveau/core/include/core/handle.h
@@ -10,6 +10,9 @@ struct nouveau_handle {
 	u32 name;
 	u32 priv;
 
+	u8  route;
+	u64 token;
+
 	struct nouveau_handle *parent;
 	struct nouveau_object *object;
 };
diff --git a/drivers/gpu/drm/nouveau/core/include/core/ioctl.h b/drivers/gpu/drm/nouveau/core/include/core/ioctl.h
new file mode 100644
index 0000000..ac7935c
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/include/core/ioctl.h
@@ -0,0 +1,6 @@
+#ifndef __NVKM_IOCTL_H__
+#define __NVKM_IOCTL_H__
+
+int nvkm_ioctl(struct nouveau_client *, bool, void *, u32, void **);
+
+#endif
diff --git a/drivers/gpu/drm/nouveau/core/include/core/notify.h b/drivers/gpu/drm/nouveau/core/include/core/notify.h
index 5df2cba..1262d8f 100644
--- a/drivers/gpu/drm/nouveau/core/include/core/notify.h
+++ b/drivers/gpu/drm/nouveau/core/include/core/notify.h
@@ -15,7 +15,7 @@ struct nvkm_notify {
 	/* set by nvkm_event ctor */
 	u32 types;
 	int index;
-	u8  size;
+	u32 size;
 
 	struct work_struct work;
 	/* this is const for a *very* good reason - the data might be on the
diff --git a/drivers/gpu/drm/nouveau/core/include/core/object.h b/drivers/gpu/drm/nouveau/core/include/core/object.h
index c04143b..b22e8fd 100644
--- a/drivers/gpu/drm/nouveau/core/include/core/object.h
+++ b/drivers/gpu/drm/nouveau/core/include/core/object.h
@@ -78,6 +78,7 @@ struct nouveau_omthds {
 	int (*call)(struct nouveau_object *, u32, void *, u32);
 };
 
+struct nvkm_event;
 struct nouveau_ofuncs {
 	int  (*ctor)(struct nouveau_object *, struct nouveau_object *,
 		     struct nouveau_oclass *, void *data, u32 size,
@@ -85,6 +86,9 @@ struct nouveau_ofuncs {
 	void (*dtor)(struct nouveau_object *);
 	int  (*init)(struct nouveau_object *);
 	int  (*fini)(struct nouveau_object *, bool suspend);
+	int  (*mthd)(struct nouveau_object *, u32, void *, u32);
+	int  (*ntfy)(struct nouveau_object *, u32, struct nvkm_event **);
+	int  (* map)(struct nouveau_object *, u64 *, u32 *);
 	u8   (*rd08)(struct nouveau_object *, u64 offset);
 	u16  (*rd16)(struct nouveau_object *, u64 offset);
 	u32  (*rd32)(struct nouveau_object *, u64 offset);
diff --git a/drivers/gpu/drm/nouveau/core/include/core/printk.h b/drivers/gpu/drm/nouveau/core/include/core/printk.h
index 0f9a37b..451b6ed 100644
--- a/drivers/gpu/drm/nouveau/core/include/core/printk.h
+++ b/drivers/gpu/drm/nouveau/core/include/core/printk.h
@@ -21,6 +21,7 @@ nv_printk_(struct nouveau_object *, int, const char *, ...);
 #define nv_debug(o,f,a...) nv_printk((o), DEBUG, f, ##a)
 #define nv_trace(o,f,a...) nv_printk((o), TRACE, f, ##a)
 #define nv_spam(o,f,a...) nv_printk((o), SPAM, f, ##a)
+#define nv_ioctl(o,f,a...) nv_trace(nouveau_client(o), "ioctl: "f, ##a)
 
 #define nv_assert(f,a...) do {                                                 \
 	if (NV_DBG_FATAL <= CONFIG_NOUVEAU_DEBUG)                              \
diff --git a/drivers/gpu/drm/nouveau/core/include/nvif/ioctl.h b/drivers/gpu/drm/nouveau/core/include/nvif/ioctl.h
new file mode 120000
index 0000000..8569c86
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/include/nvif/ioctl.h
@@ -0,0 +1 @@
+../../../nvif/ioctl.h
\ No newline at end of file