drm/nouveau/fifo: expose channel killed in host channel event class

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

drivers/gpu/drm/nouveau/include/nvif/cl906f.h

@@ -10,6 +10,4 @@ struct fermi_channel_gpfifo_v0 {
 	__u64 ioffset;
 	__u64 vmm;
 };
-
-#define NV906F_V0_NTFY_KILLED                                              0x01
 #endif

drivers/gpu/drm/nouveau/include/nvif/cla06f.h

@@ -12,6 +12,4 @@ struct kepler_channel_gpfifo_a_v0 {
 	__u64 vmm;
 	__u64 inst;
 };
-
-#define NVA06F_V0_NTFY_KILLED                                              0x01
 #endif

drivers/gpu/drm/nouveau/include/nvif/clc36f.h

@@ -13,6 +13,4 @@ struct volta_channel_gpfifo_a_v0 {
 	__u64 inst;
 	__u32 token;
 };
-
-#define NVC36F_V0_NTFY_KILLED                                              0x01
 #endif

drivers/gpu/drm/nouveau/include/nvif/if0020.h

@@ -6,6 +6,7 @@ union nvif_chan_event_args {
 	struct nvif_chan_event_v0 {
 		__u8 version;
 #define NVIF_CHAN_EVENT_V0_NON_STALL_INTR 0x00
+#define NVIF_CHAN_EVENT_V0_KILLED         0x01
 		__u8 type;
 	} v0;
 };

drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h

@@ -44,6 +44,7 @@ struct nvkm_fifo {
 
 #define NVKM_FIFO_EVENT_NON_STALL_INTR BIT(0)
 	struct nvkm_event uevent; /* async user trigger */
+#define NVKM_FIFO_EVENT_KILLED         BIT(0)
 	struct nvkm_event kevent; /* channel killed */
 };
 

drivers/gpu/drm/nouveau/nouveau_chan.c

@@ -30,6 +30,7 @@
 #include <nvif/cl906f.h>
 #include <nvif/cla06f.h>
 #include <nvif/clc36f.h>
+#include <nvif/if0020.h>
 #include <nvif/ioctl.h>
 
 #include "nouveau_drv.h"
@@ -46,15 +47,17 @@ int nouveau_vram_pushbuf;
 module_param_named(vram_pushbuf, nouveau_vram_pushbuf, int, 0400);
 
 static int
-nouveau_channel_killed(struct nvif_notify *ntfy)
+nouveau_channel_killed(struct nvif_event *event, void *repv, u32 repc)
 {
-	struct nouveau_channel *chan = container_of(ntfy, typeof(*chan), kill);
+	struct nouveau_channel *chan = container_of(event, typeof(*chan), kill);
 	struct nouveau_cli *cli = (void *)chan->user.client;
+
 	NV_PRINTK(warn, cli, "channel %d killed!\n", chan->chid);
 	atomic_set(&chan->killed, 1);
 	if (chan->fence)
 		nouveau_fence_context_kill(chan->fence, -ENODEV);
-	return NVIF_NOTIFY_DROP;
+
+	return NVIF_EVENT_DROP;
 }
 
 int
@@ -96,7 +99,7 @@ nouveau_channel_del(struct nouveau_channel **pchan)
 		nvif_object_dtor(&chan->nvsw);
 		nvif_object_dtor(&chan->gart);
 		nvif_object_dtor(&chan->vram);
-		nvif_notify_dtor(&chan->kill);
+		nvif_event_dtor(&chan->kill);
 		nvif_object_dtor(&chan->user);
 		nvif_object_dtor(&chan->push.ctxdma);
 		nouveau_vma_del(&chan->push.vma);
@@ -391,12 +394,19 @@ nouveau_channel_init(struct nouveau_channel *chan, u32 vram, u32 gart)
 
 	if (chan->user.oclass >= FERMI_CHANNEL_GPFIFO &&
 	    chan->user.oclass < AMPERE_CHANNEL_GPFIFO_B) {
-		ret = nvif_notify_ctor(&chan->user, "abi16ChanKilled",
-				       nouveau_channel_killed,
-				       true, NV906F_V0_NTFY_KILLED,
-				       NULL, 0, 0, &chan->kill);
+		struct {
+			struct nvif_event_v0 base;
+			struct nvif_chan_event_v0 host;
+		} args;
+
+		args.host.version = 0;
+		args.host.type = NVIF_CHAN_EVENT_V0_KILLED;
+
+		ret = nvif_event_ctor(&chan->user, "abi16ChanKilled", chan->chid,
+				      nouveau_channel_killed, false,
+				      &args.base, sizeof(args), &chan->kill);
 		if (ret == 0)
-			ret = nvif_notify_get(&chan->kill);
+			ret = nvif_event_allow(&chan->kill);
 		if (ret) {
 			NV_ERROR(drm, "Failed to request channel kill "
 				      "notification: %d\n", ret);

drivers/gpu/drm/nouveau/nouveau_chan.h

@@ -2,7 +2,7 @@
 #ifndef __NOUVEAU_CHAN_H__
 #define __NOUVEAU_CHAN_H__
 #include <nvif/object.h>
-#include <nvif/notify.h>
+#include <nvif/event.h>
 #include <nvif/push.h>
 struct nvif_device;
 
@@ -50,7 +50,7 @@ struct nouveau_channel {
 
 	struct nvif_object user;
 
-	struct nvif_notify kill;
+	struct nvif_event kill;
 	atomic_t killed;
 };
 

drivers/gpu/drm/nouveau/nouveau_fence.c

@@ -88,8 +88,9 @@ void
 nouveau_fence_context_kill(struct nouveau_fence_chan *fctx, int error)
 {
 	struct nouveau_fence *fence;
+	unsigned long flags;
 
-	spin_lock_irq(&fctx->lock);
+	spin_lock_irqsave(&fctx->lock, flags);
 	while (!list_empty(&fctx->pending)) {
 		fence = list_entry(fctx->pending.next, typeof(*fence), head);
 
@@ -99,7 +100,7 @@ nouveau_fence_context_kill(struct nouveau_fence_chan *fctx, int error)
 		if (nouveau_fence_signal(fence))
 			nvif_event_block(&fctx->event);
 	}
-	spin_unlock_irq(&fctx->lock);
+	spin_unlock_irqrestore(&fctx->lock, flags);
 }
 
 void

drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c

@@ -26,7 +26,6 @@
 
 #include <core/client.h>
 #include <core/gpuobj.h>
-#include <core/notify.h>
 #include <subdev/mc.h>
 
 #include <nvif/event.h>
@@ -122,26 +121,11 @@ nvkm_fifo_chan_chid(struct nvkm_fifo *fifo, int chid, unsigned long *rflags)
 void
 nvkm_fifo_kevent(struct nvkm_fifo *fifo, int chid)
 {
-	nvkm_event_send(&fifo->kevent, 1, chid, NULL, 0);
-}
-
-static int
-nvkm_fifo_kevent_ctor(struct nvkm_object *object, void *data, u32 size,
-		      struct nvkm_notify *notify)
-{
-	struct nvkm_fifo_chan *chan = nvkm_fifo_chan(object);
-	if (size == 0) {
-		notify->size  = 0;
-		notify->types = 1;
-		notify->index = chan->chid;
-		return 0;
-	}
-	return -ENOSYS;
+	nvkm_event_send(&fifo->kevent, NVKM_FIFO_EVENT_KILLED, chid, NULL, 0);
 }
 
 static const struct nvkm_event_func
 nvkm_fifo_kevent_func = {
-	.ctor = nvkm_fifo_kevent_ctor,
 };
 
 static void

drivers/gpu/drm/nouveau/nvkm/engine/fifo/chan.c

@@ -267,6 +267,9 @@ nvkm_fifo_chan_uevent(struct nvkm_object *object, void *argv, u32 argc, struct n
 	case NVIF_CHAN_EVENT_V0_NON_STALL_INTR:
 		return nvkm_uevent_add(uevent, &chan->fifo->uevent, 0,
 				       NVKM_FIFO_EVENT_NON_STALL_INTR, NULL);
+	case NVIF_CHAN_EVENT_V0_KILLED:
+		return nvkm_uevent_add(uevent, &chan->fifo->kevent, chan->chid,
+				       NVKM_FIFO_EVENT_KILLED, NULL);
 	default:
 		break;
 	}
@@ -274,16 +277,6 @@ nvkm_fifo_chan_uevent(struct nvkm_object *object, void *argv, u32 argc, struct n
 	return -ENOSYS;
 }
 
-static int
-nvkm_fifo_chan_ntfy(struct nvkm_object *object, u32 type,
-		    struct nvkm_event **pevent)
-{
-	struct nvkm_fifo_chan *chan = nvkm_fifo_chan(object);
-	if (chan->func->ntfy)
-		return chan->func->ntfy(chan, type, pevent);
-	return -ENODEV;
-}
-
 static int
 nvkm_fifo_chan_map(struct nvkm_object *object, void *argv, u32 argc,
 		   enum nvkm_object_map *type, u64 *addr, u64 *size)
@@ -341,7 +334,6 @@ nvkm_fifo_chan_func = {
 	.dtor = nvkm_fifo_chan_dtor,
 	.init = nvkm_fifo_chan_init,
 	.fini = nvkm_fifo_chan_fini,
-	.ntfy = nvkm_fifo_chan_ntfy,
 	.map = nvkm_fifo_chan_map,
 	.sclass = nvkm_fifo_chan_child_get,
 	.uevent = nvkm_fifo_chan_uevent,

drivers/gpu/drm/nouveau/nvkm/engine/fifo/chan.h

@@ -8,7 +8,6 @@ struct nvkm_fifo_chan_func {
 	void *(*dtor)(struct nvkm_fifo_chan *);
 	void (*init)(struct nvkm_fifo_chan *);
 	void (*fini)(struct nvkm_fifo_chan *);
-	int (*ntfy)(struct nvkm_fifo_chan *, u32 type, struct nvkm_event **);
 	int  (*engine_ctor)(struct nvkm_fifo_chan *, struct nvkm_engine *,
 			    struct nvkm_object *);
 	void (*engine_dtor)(struct nvkm_fifo_chan *, struct nvkm_engine *);

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogf100.c

@@ -32,20 +32,6 @@
 #include <nvif/cl906f.h>
 #include <nvif/unpack.h>
 
-int
-gf100_fifo_chan_ntfy(struct nvkm_fifo_chan *chan, u32 type,
-		     struct nvkm_event **pevent)
-{
-	switch (type) {
-	case NV906F_V0_NTFY_KILLED:
-		*pevent = &chan->fifo->kevent;
-		return 0;
-	default:
-		break;
-	}
-	return -EINVAL;
-}
-
 static u32
 gf100_fifo_gpfifo_engine_addr(struct nvkm_engine *engine)
 {
@@ -207,7 +193,6 @@ gf100_fifo_gpfifo_func = {
 	.dtor = gf100_fifo_gpfifo_dtor,
 	.init = gf100_fifo_gpfifo_init,
 	.fini = gf100_fifo_gpfifo_fini,
-	.ntfy = gf100_fifo_chan_ntfy,
 	.engine_ctor = gf100_fifo_gpfifo_engine_ctor,
 	.engine_dtor = gf100_fifo_gpfifo_engine_dtor,
 	.engine_init = gf100_fifo_gpfifo_engine_init,

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogk104.c

@@ -246,7 +246,6 @@ gk104_fifo_gpfifo_func = {
 	.dtor = gk104_fifo_gpfifo_dtor,
 	.init = gk104_fifo_gpfifo_init,
 	.fini = gk104_fifo_gpfifo_fini,
-	.ntfy = gf100_fifo_chan_ntfy,
 	.engine_ctor = gk104_fifo_gpfifo_engine_ctor,
 	.engine_dtor = gk104_fifo_gpfifo_engine_dtor,
 	.engine_init = gk104_fifo_gpfifo_engine_init,

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogv100.c

@@ -125,7 +125,6 @@ gv100_fifo_gpfifo = {
 	.dtor = gk104_fifo_gpfifo_dtor,
 	.init = gk104_fifo_gpfifo_init,
 	.fini = gk104_fifo_gpfifo_fini,
-	.ntfy = gf100_fifo_chan_ntfy,
 	.engine_ctor = gk104_fifo_gpfifo_engine_ctor,
 	.engine_dtor = gk104_fifo_gpfifo_engine_dtor,
 	.engine_init = gv100_fifo_gpfifo_engine_init,

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifotu102.c

@@ -40,7 +40,6 @@ tu102_fifo_gpfifo = {
 	.dtor = gk104_fifo_gpfifo_dtor,
 	.init = gk104_fifo_gpfifo_init,
 	.fini = gk104_fifo_gpfifo_fini,
-	.ntfy = gf100_fifo_chan_ntfy,
 	.engine_ctor = gk104_fifo_gpfifo_engine_ctor,
 	.engine_dtor = gk104_fifo_gpfifo_engine_dtor,
 	.engine_init = gv100_fifo_gpfifo_engine_init,