drm/nouveau/disp: expose page flip event class

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>

3 files changed, 20 insertions, 38 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/sw/chan.c b/drivers/gpu/drm/nouveau/nvkm/engine/sw/chan.c
index d156f8676896..5e65e13b0053 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/sw/chan.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/sw/chan.c
@@ -23,7 +23,6 @@
  */
 #include "chan.h"
 
-#include <core/notify.h>
 #include <engine/fifo.h>
 
 #include <nvif/event.h>
@@ -36,7 +35,7 @@ nvkm_sw_chan_mthd(struct nvkm_sw_chan *chan, int subc, u32 mthd, u32 data)
 	case 0x0000:
 		return true;
 	case 0x0500:
-		nvkm_event_send(&chan->event, 1, 0, NULL, 0);
+		nvkm_event_send(&chan->event, NVKM_SW_CHAN_EVENT_PAGE_FLIP, 0, NULL, 0);
 		return true;
 	default:
 		if (chan->func->mthd)
@@ -46,27 +45,8 @@ nvkm_sw_chan_mthd(struct nvkm_sw_chan *chan, int subc, u32 mthd, u32 data)
 	return false;
 }
 
-static int
-nvkm_sw_chan_event_ctor(struct nvkm_object *object, void *data, u32 size,
-			struct nvkm_notify *notify)
-{
-	union {
-		struct nvif_notify_uevent_req none;
-	} *req = data;
-	int ret = -ENOSYS;
-
-	if (!(ret = nvif_unvers(ret, &data, &size, req->none))) {
-		notify->size  = sizeof(struct nvif_notify_uevent_rep);
-		notify->types = 1;
-		notify->index = 0;
-	}
-
-	return ret;
-}
-
 static const struct nvkm_event_func
 nvkm_sw_chan_event = {
-	.ctor = nvkm_sw_chan_event_ctor,
 };
 
 static void *
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/sw/chan.h b/drivers/gpu/drm/nouveau/nvkm/engine/sw/chan.h
index 32de53427aa4..67b2e5ea93d9 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/sw/chan.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/sw/chan.h
@@ -14,6 +14,7 @@ struct nvkm_sw_chan {
 	struct nvkm_fifo_chan *fifo;
 	struct list_head head;
 
+#define NVKM_SW_CHAN_EVENT_PAGE_FLIP BIT(0)
 	struct nvkm_event event;
 };
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/sw/nvsw.c b/drivers/gpu/drm/nouveau/nvkm/engine/sw/nvsw.c
index 33dd03fff3c4..f5affa1c8f34 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/sw/nvsw.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/sw/nvsw.c
@@ -27,33 +27,34 @@
 #include <nvif/if0004.h>
 
 static int
-nvkm_nvsw_mthd_(struct nvkm_object *object, u32 mthd, void *data, u32 size)
+nvkm_nvsw_uevent(struct nvkm_object *object, void *argv, u32 argc, struct nvkm_uevent *uevent)
 {
-	struct nvkm_nvsw *nvsw = nvkm_nvsw(object);
-	if (nvsw->func->mthd)
-		return nvsw->func->mthd(nvsw, mthd, data, size);
-	return -ENODEV;
+	union nv04_nvsw_event_args *args = argv;
+
+	if (!uevent)
+		return 0;
+	if (argc != sizeof(args->vn))
+		return -ENOSYS;
+
+	return nvkm_uevent_add(uevent, &nvkm_nvsw(object)->chan->event, 0,
+			       NVKM_SW_CHAN_EVENT_PAGE_FLIP, NULL);
 }
 
 static int
-nvkm_nvsw_ntfy_(struct nvkm_object *object, u32 mthd,
-		struct nvkm_event **pevent)
+nvkm_nvsw_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
 {
 	struct nvkm_nvsw *nvsw = nvkm_nvsw(object);
-	switch (mthd) {
-	case NV04_NVSW_NTFY_UEVENT:
-		*pevent = &nvsw->chan->event;
-		return 0;
-	default:
-		break;
-	}
-	return -EINVAL;
+
+	if (nvsw->func->mthd)
+		return nvsw->func->mthd(nvsw, mthd, data, size);
+
+	return -ENODEV;
 }
 
 static const struct nvkm_object_func
 nvkm_nvsw_ = {
-	.mthd = nvkm_nvsw_mthd_,
-	.ntfy = nvkm_nvsw_ntfy_,
+	.mthd = nvkm_nvsw_mthd,
+	.uevent = nvkm_nvsw_uevent,
 };
 
 int