1 files changed, 301 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c
new file mode 100644
index 000000000000..01803c0679b6
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c
@@ -0,0 +1,301 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "channv50.h"
+#include "rootnv50.h"
+
+#include <core/client.h>
+#include <core/ramht.h>
+#include <engine/dma.h>
+
+#include <nvif/class.h>
+#include <nvif/event.h>
+#include <nvif/unpack.h>
+
+static void
+nv50_disp_mthd_list(struct nv50_disp *disp, int debug, u32 base, int c,
+		    const struct nv50_disp_mthd_list *list, int inst)
+{
+	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
+	struct nvkm_device *device = subdev->device;
+	int i;
+
+	for (i = 0; list->data[i].mthd; i++) {
+		if (list->data[i].addr) {
+			u32 next = nvkm_rd32(device, list->data[i].addr + base + 0);
+			u32 prev = nvkm_rd32(device, list->data[i].addr + base + c);
+			u32 mthd = list->data[i].mthd + (list->mthd * inst);
+			const char *name = list->data[i].name;
+			char mods[16];
+
+			if (prev != next)
+				snprintf(mods, sizeof(mods), "-> %08x", next);
+			else
+				snprintf(mods, sizeof(mods), "%13c", ' ');
+
+			nvkm_printk_(subdev, debug, info,
+				     "\t%04x: %08x %s%s%s\n",
+				     mthd, prev, mods, name ? " // " : "",
+				     name ? name : "");
+		}
+	}
+}
+
+void
+nv50_disp_chan_mthd(struct nv50_disp_chan *chan, int debug)
+{
+	struct nv50_disp *disp = chan->root->disp;
+	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
+	const struct nv50_disp_chan_mthd *mthd = chan->mthd;
+	const struct nv50_disp_mthd_list *list;
+	int i, j;
+
+	if (debug > subdev->debug)
+		return;
+
+	for (i = 0; (list = mthd->data[i].mthd) != NULL; i++) {
+		u32 base = chan->head * mthd->addr;
+		for (j = 0; j < mthd->data[i].nr; j++, base += list->addr) {
+			const char *cname = mthd->name;
+			const char *sname = "";
+			char cname_[16], sname_[16];
+
+			if (mthd->addr) {
+				snprintf(cname_, sizeof(cname_), "%s %d",
+					 mthd->name, chan->chid);
+				cname = cname_;
+			}
+
+			if (mthd->data[i].nr > 1) {
+				snprintf(sname_, sizeof(sname_), " - %s %d",
+					 mthd->data[i].name, j);
+				sname = sname_;
+			}
+
+			nvkm_printk_(subdev, debug, info, "%s%s:\n", cname, sname);
+			nv50_disp_mthd_list(disp, debug, base, mthd->prev,
+					    list, j);
+		}
+	}
+}
+
+static void
+nv50_disp_chan_uevent_fini(struct nvkm_event *event, int type, int index)
+{
+	struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
+	struct nvkm_device *device = disp->base.engine.subdev.device;
+	nvkm_mask(device, 0x610028, 0x00000001 << index, 0x00000000 << index);
+	nvkm_wr32(device, 0x610020, 0x00000001 << index);
+}
+
+static void
+nv50_disp_chan_uevent_init(struct nvkm_event *event, int types, int index)
+{
+	struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
+	struct nvkm_device *device = disp->base.engine.subdev.device;
+	nvkm_wr32(device, 0x610020, 0x00000001 << index);
+	nvkm_mask(device, 0x610028, 0x00000001 << index, 0x00000001 << index);
+}
+
+void
+nv50_disp_chan_uevent_send(struct nv50_disp *disp, int chid)
+{
+	struct nvif_notify_uevent_rep {
+	} rep;
+
+	nvkm_event_send(&disp->uevent, 1, chid, &rep, sizeof(rep));
+}
+
+int
+nv50_disp_chan_uevent_ctor(struct nvkm_object *object, void *data, u32 size,
+			   struct nvkm_notify *notify)
+{
+	struct nv50_disp_chan *chan = nv50_disp_chan(object);
+	union {
+		struct nvif_notify_uevent_req none;
+	} *args = data;
+	int ret;
+
+	if (nvif_unvers(args->none)) {
+		notify->size  = sizeof(struct nvif_notify_uevent_rep);
+		notify->types = 1;
+		notify->index = chan->chid;
+		return 0;
+	}
+
+	return ret;
+}
+
+const struct nvkm_event_func
+nv50_disp_chan_uevent = {
+	.ctor = nv50_disp_chan_uevent_ctor,
+	.init = nv50_disp_chan_uevent_init,
+	.fini = nv50_disp_chan_uevent_fini,
+};
+
+int
+nv50_disp_chan_rd32(struct nvkm_object *object, u64 addr, u32 *data)
+{
+	struct nv50_disp_chan *chan = nv50_disp_chan(object);
+	struct nv50_disp *disp = chan->root->disp;
+	struct nvkm_device *device = disp->base.engine.subdev.device;
+	*data = nvkm_rd32(device, 0x640000 + (chan->chid * 0x1000) + addr);
+	return 0;
+}
+
+int
+nv50_disp_chan_wr32(struct nvkm_object *object, u64 addr, u32 data)
+{
+	struct nv50_disp_chan *chan = nv50_disp_chan(object);
+	struct nv50_disp *disp = chan->root->disp;
+	struct nvkm_device *device = disp->base.engine.subdev.device;
+	nvkm_wr32(device, 0x640000 + (chan->chid * 0x1000) + addr, data);
+	return 0;
+}
+
+int
+nv50_disp_chan_ntfy(struct nvkm_object *object, u32 type,
+		    struct nvkm_event **pevent)
+{
+	struct nv50_disp_chan *chan = nv50_disp_chan(object);
+	struct nv50_disp *disp = chan->root->disp;
+	switch (type) {
+	case NV50_DISP_CORE_CHANNEL_DMA_V0_NTFY_UEVENT:
+		*pevent = &disp->uevent;
+		return 0;
+	default:
+		break;
+	}
+	return -EINVAL;
+}
+
+int
+nv50_disp_chan_map(struct nvkm_object *object, u64 *addr, u32 *size)
+{
+	struct nv50_disp_chan *chan = nv50_disp_chan(object);
+	struct nv50_disp *disp = chan->root->disp;
+	struct nvkm_device *device = disp->base.engine.subdev.device;
+	*addr = device->func->resource_addr(device, 0) +
+		0x640000 + (chan->chid * 0x1000);
+	*size = 0x001000;
+	return 0;
+}
+
+static int
+nv50_disp_chan_child_new(const struct nvkm_oclass *oclass,
+			 void *data, u32 size, struct nvkm_object **pobject)
+{
+	struct nv50_disp_chan *chan = nv50_disp_chan(oclass->parent);
+	return chan->func->child_new(chan, oclass, data, size, pobject);
+}
+
+static int
+nv50_disp_chan_child_get(struct nvkm_object *object, int index,
+			 struct nvkm_oclass *oclass)
+{
+	struct nv50_disp_chan *chan = nv50_disp_chan(object);
+	if (chan->func->child_get) {
+		int ret = chan->func->child_get(chan, index, oclass);
+		if (ret == 0)
+			oclass->ctor = nv50_disp_chan_child_new;
+		return ret;
+	}
+	return -EINVAL;
+}
+
+static int
+nv50_disp_chan_fini(struct nvkm_object *object, bool suspend)
+{
+	struct nv50_disp_chan *chan = nv50_disp_chan(object);
+	chan->func->fini(chan);
+	return 0;
+}
+
+static int
+nv50_disp_chan_init(struct nvkm_object *object)
+{
+	struct nv50_disp_chan *chan = nv50_disp_chan(object);
+	return chan->func->init(chan);
+}
+
+static void *
+nv50_disp_chan_dtor(struct nvkm_object *object)
+{
+	struct nv50_disp_chan *chan = nv50_disp_chan(object);
+	struct nv50_disp *disp = chan->root->disp;
+	if (chan->chid >= 0)
+		disp->chan[chan->chid] = NULL;
+	return chan->func->dtor ? chan->func->dtor(chan) : chan;
+}
+
+static const struct nvkm_object_func
+nv50_disp_chan = {
+	.dtor = nv50_disp_chan_dtor,
+	.init = nv50_disp_chan_init,
+	.fini = nv50_disp_chan_fini,
+	.rd32 = nv50_disp_chan_rd32,
+	.wr32 = nv50_disp_chan_wr32,
+	.ntfy = nv50_disp_chan_ntfy,
+	.map = nv50_disp_chan_map,
+	.sclass = nv50_disp_chan_child_get,
+};
+
+int
+nv50_disp_chan_ctor(const struct nv50_disp_chan_func *func,
+		    const struct nv50_disp_chan_mthd *mthd,
+		    struct nv50_disp_root *root, int chid, int head,
+		    const struct nvkm_oclass *oclass,
+		    struct nv50_disp_chan *chan)
+{
+	struct nv50_disp *disp = root->disp;
+
+	nvkm_object_ctor(&nv50_disp_chan, oclass, &chan->object);
+	chan->func = func;
+	chan->mthd = mthd;
+	chan->root = root;
+	chan->chid = chid;
+	chan->head = head;
+
+	if (disp->chan[chan->chid]) {
+		chan->chid = -1;
+		return -EBUSY;
+	}
+	disp->chan[chan->chid] = chan;
+	return 0;
+}
+
+int
+nv50_disp_chan_new_(const struct nv50_disp_chan_func *func,
+		    const struct nv50_disp_chan_mthd *mthd,
+		    struct nv50_disp_root *root, int chid, int head,
+		    const struct nvkm_oclass *oclass,
+		    struct nvkm_object **pobject)
+{
+	struct nv50_disp_chan *chan;
+
+	if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
+		return -ENOMEM;
+	*pobject = &chan->object;
+
+	return nv50_disp_chan_ctor(func, mthd, root, chid, head, oclass, chan);
+}