1 files changed, 315 insertions, 66 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv50.c
index a08742cf425a..954b5f3a7d57 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv50.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv50.c
@@ -21,62 +21,325 @@
  *
  * Authors: Ben Skeggs
  */
-#include "nv50.h"
-#include "channv50.h"
+#include "priv.h"
+#include "cgrp.h"
+#include "chan.h"
+#include "chid.h"
+#include "runl.h"
 
-#include <core/gpuobj.h>
+#include <core/ramht.h>
+#include <subdev/timer.h>
 
-static void
-nv50_fifo_runlist_update_locked(struct nv50_fifo *fifo)
+#include <nvif/class.h>
+
+void
+nv50_eobj_ramht_del(struct nvkm_chan *chan, int hash)
 {
-	struct nvkm_device *device = fifo->base.engine.subdev.device;
-	struct nvkm_memory *cur;
-	int i, p;
+	nvkm_ramht_remove(chan->ramht, hash);
+}
 
-	cur = fifo->runlist[fifo->cur_runlist];
-	fifo->cur_runlist = !fifo->cur_runlist;
+int
+nv50_eobj_ramht_add(struct nvkm_engn *engn, struct nvkm_object *eobj, struct nvkm_chan *chan)
+{
+	return nvkm_ramht_insert(chan->ramht, eobj, 0, 4, eobj->handle, engn->id << 20);
+}
 
-	nvkm_kmap(cur);
-	for (i = 0, p = 0; i < fifo->base.nr; i++) {
-		if (nvkm_rd32(device, 0x002600 + (i * 4)) & 0x80000000)
-			nvkm_wo32(cur, p++ * 4, i);
-	}
-	nvkm_done(cur);
+void
+nv50_chan_stop(struct nvkm_chan *chan)
+{
+	struct nvkm_device *device = chan->cgrp->runl->fifo->engine.subdev.device;
 
-	nvkm_wr32(device, 0x0032f4, nvkm_memory_addr(cur) >> 12);
-	nvkm_wr32(device, 0x0032ec, p);
-	nvkm_wr32(device, 0x002500, 0x00000101);
+	nvkm_mask(device, 0x002600 + (chan->id * 4), 0x80000000, 0x00000000);
 }
 
 void
-nv50_fifo_runlist_update(struct nv50_fifo *fifo)
+nv50_chan_start(struct nvkm_chan *chan)
 {
-	mutex_lock(&fifo->base.mutex);
-	nv50_fifo_runlist_update_locked(fifo);
-	mutex_unlock(&fifo->base.mutex);
+	struct nvkm_device *device = chan->cgrp->runl->fifo->engine.subdev.device;
+
+	nvkm_mask(device, 0x002600 + (chan->id * 4), 0x80000000, 0x80000000);
 }
 
-int
-nv50_fifo_oneinit(struct nvkm_fifo *base)
+void
+nv50_chan_unbind(struct nvkm_chan *chan)
 {
-	struct nv50_fifo *fifo = nv50_fifo(base);
-	struct nvkm_device *device = fifo->base.engine.subdev.device;
+	struct nvkm_device *device = chan->cgrp->runl->fifo->engine.subdev.device;
+
+	nvkm_wr32(device, 0x002600 + (chan->id * 4), 0x00000000);
+}
+
+static void
+nv50_chan_bind(struct nvkm_chan *chan)
+{
+	struct nvkm_device *device = chan->cgrp->runl->fifo->engine.subdev.device;
+
+	nvkm_wr32(device, 0x002600 + (chan->id * 4), chan->ramfc->addr >> 12);
+}
+
+static int
+nv50_chan_ramfc_write(struct nvkm_chan *chan, u64 offset, u64 length, u32 devm, bool priv)
+{
+	struct nvkm_device *device = chan->cgrp->runl->fifo->engine.subdev.device;
+	const u32 limit2 = ilog2(length / 8);
 	int ret;
 
-	ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 128 * 4, 0x1000,
-			      false, &fifo->runlist[0]);
+	ret = nvkm_gpuobj_new(device, 0x0200, 0x1000, true, chan->inst, &chan->ramfc);
+	if (ret)
+		return ret;
+
+	ret = nvkm_gpuobj_new(device, 0x1200, 0, true, chan->inst, &chan->eng);
 	if (ret)
 		return ret;
 
-	return nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 128 * 4, 0x1000,
-			       false, &fifo->runlist[1]);
+	ret = nvkm_gpuobj_new(device, 0x4000, 0, false, chan->inst, &chan->pgd);
+	if (ret)
+		return ret;
+
+	ret = nvkm_ramht_new(device, 0x8000, 16, chan->inst, &chan->ramht);
+	if (ret)
+		return ret;
+
+	nvkm_kmap(chan->ramfc);
+	nvkm_wo32(chan->ramfc, 0x3c, 0x403f6078);
+	nvkm_wo32(chan->ramfc, 0x44, 0x01003fff);
+	nvkm_wo32(chan->ramfc, 0x48, chan->push->node->offset >> 4);
+	nvkm_wo32(chan->ramfc, 0x50, lower_32_bits(offset));
+	nvkm_wo32(chan->ramfc, 0x54, upper_32_bits(offset) | (limit2 << 16));
+	nvkm_wo32(chan->ramfc, 0x60, 0x7fffffff);
+	nvkm_wo32(chan->ramfc, 0x78, 0x00000000);
+	nvkm_wo32(chan->ramfc, 0x7c, 0x30000000 | devm);
+	nvkm_wo32(chan->ramfc, 0x80, ((chan->ramht->bits - 9) << 27) |
+				     (4 << 24) /* SEARCH_FULL */ |
+				     (chan->ramht->gpuobj->node->offset >> 4));
+	nvkm_done(chan->ramfc);
+	return 0;
+}
+
+static const struct nvkm_chan_func_ramfc
+nv50_chan_ramfc = {
+	.write = nv50_chan_ramfc_write,
+	.ctxdma = true,
+	.devm = 0xfff,
+};
+
+const struct nvkm_chan_func_userd
+nv50_chan_userd = {
+	.bar = 0,
+	.base = 0xc00000,
+	.size = 0x002000,
+};
+
+const struct nvkm_chan_func_inst
+nv50_chan_inst = {
+	.size = 0x10000,
+	.vmm = true,
+};
+
+static const struct nvkm_chan_func
+nv50_chan = {
+	.inst = &nv50_chan_inst,
+	.userd = &nv50_chan_userd,
+	.ramfc = &nv50_chan_ramfc,
+	.bind = nv50_chan_bind,
+	.unbind = nv50_chan_unbind,
+	.start = nv50_chan_start,
+	.stop = nv50_chan_stop,
+};
+
+static void
+nv50_ectx_bind(struct nvkm_engn *engn, struct nvkm_cctx *cctx, struct nvkm_chan *chan)
+{
+	struct nvkm_subdev *subdev = &chan->cgrp->runl->fifo->engine.subdev;
+	struct nvkm_device *device = subdev->device;
+	u64 start = 0, limit = 0;
+	u32 flags = 0, ptr0, save;
+
+	switch (engn->engine->subdev.type) {
+	case NVKM_ENGINE_GR    : ptr0 = 0x0000; break;
+	case NVKM_ENGINE_MPEG  : ptr0 = 0x0060; break;
+	default:
+		WARN_ON(1);
+		return;
+	}
+
+	if (!cctx) {
+		/* HW bug workaround:
+		 *
+		 * PFIFO will hang forever if the connected engines don't report
+		 * that they've processed the context switch request.
+		 *
+		 * In order for the kickoff to work, we need to ensure all the
+		 * connected engines are in a state where they can answer.
+		 *
+		 * Newer chipsets don't seem to suffer from this issue, and well,
+		 * there's also a "ignore these engines" bitmask reg we can use
+		 * if we hit the issue there..
+		 */
+		save = nvkm_mask(device, 0x00b860, 0x00000001, 0x00000001);
+
+		/* Tell engines to save out contexts. */
+		nvkm_wr32(device, 0x0032fc, chan->inst->addr >> 12);
+		nvkm_msec(device, 2000,
+			if (nvkm_rd32(device, 0x0032fc) != 0xffffffff)
+				break;
+		);
+		nvkm_wr32(device, 0x00b860, save);
+	} else {
+		flags = 0x00190000;
+		start = cctx->vctx->inst->addr;
+		limit = start + cctx->vctx->inst->size - 1;
+	}
+
+	nvkm_kmap(chan->eng);
+	nvkm_wo32(chan->eng, ptr0 + 0x00, flags);
+	nvkm_wo32(chan->eng, ptr0 + 0x04, lower_32_bits(limit));
+	nvkm_wo32(chan->eng, ptr0 + 0x08, lower_32_bits(start));
+	nvkm_wo32(chan->eng, ptr0 + 0x0c, upper_32_bits(limit) << 24 |
+					  lower_32_bits(start));
+	nvkm_wo32(chan->eng, ptr0 + 0x10, 0x00000000);
+	nvkm_wo32(chan->eng, ptr0 + 0x14, 0x00000000);
+	nvkm_done(chan->eng);
 }
 
+static const struct nvkm_engn_func
+nv50_engn = {
+	.bind = nv50_ectx_bind,
+	.ramht_add = nv50_eobj_ramht_add,
+	.ramht_del = nv50_eobj_ramht_del,
+};
+
+const struct nvkm_engn_func
+nv50_engn_sw = {
+	.ramht_add = nv50_eobj_ramht_add,
+	.ramht_del = nv50_eobj_ramht_del,
+};
+
+static bool
+nv50_runl_pending(struct nvkm_runl *runl)
+{
+	return nvkm_rd32(runl->fifo->engine.subdev.device, 0x0032ec) & 0x00000100;
+}
+
+int
+nv50_runl_wait(struct nvkm_runl *runl)
+{
+	struct nvkm_fifo *fifo = runl->fifo;
+
+	nvkm_msec(fifo->engine.subdev.device, fifo->timeout.chan_msec,
+		if (!nvkm_runl_update_pending(runl))
+			return 0;
+		usleep_range(1, 2);
+	);
+
+	return -ETIMEDOUT;
+}
+
+static void
+nv50_runl_commit(struct nvkm_runl *runl, struct nvkm_memory *memory, u32 start, int count)
+{
+	struct nvkm_device *device = runl->fifo->engine.subdev.device;
+	u64 addr = nvkm_memory_addr(memory) + start;
+
+	nvkm_wr32(device, 0x0032f4, addr >> 12);
+	nvkm_wr32(device, 0x0032ec, count);
+}
+
+static void
+nv50_runl_insert_chan(struct nvkm_chan *chan, struct nvkm_memory *memory, u64 offset)
+{
+	nvkm_wo32(memory, offset, chan->id);
+}
+
+static struct nvkm_memory *
+nv50_runl_alloc(struct nvkm_runl *runl, u32 *offset)
+{
+	const u32 segment = ALIGN((runl->cgrp_nr + runl->chan_nr) * runl->func->size, 0x1000);
+	const u32 maxsize = (runl->cgid ? runl->cgid->nr : 0) + runl->chid->nr;
+	int ret;
+
+	if (unlikely(!runl->mem)) {
+		ret = nvkm_memory_new(runl->fifo->engine.subdev.device, NVKM_MEM_TARGET_INST,
+				      maxsize * 2 * runl->func->size, 0, false, &runl->mem);
+		if (ret) {
+			RUNL_ERROR(runl, "alloc %d\n", ret);
+			return ERR_PTR(ret);
+		}
+	} else {
+		if (runl->offset + segment >= nvkm_memory_size(runl->mem)) {
+			ret = runl->func->wait(runl);
+			if (ret) {
+				RUNL_DEBUG(runl, "rewind timeout");
+				return ERR_PTR(ret);
+			}
+
+			runl->offset = 0;
+		}
+	}
+
+	*offset = runl->offset;
+	runl->offset += segment;
+	return runl->mem;
+}
+
+int
+nv50_runl_update(struct nvkm_runl *runl)
+{
+	struct nvkm_memory *memory;
+	struct nvkm_cgrp *cgrp;
+	struct nvkm_chan *chan;
+	u32 start, offset, count;
+
+	/*TODO: prio, interleaving. */
+
+	RUNL_TRACE(runl, "RAMRL: update cgrps:%d chans:%d", runl->cgrp_nr, runl->chan_nr);
+	memory = nv50_runl_alloc(runl, &start);
+	if (IS_ERR(memory))
+		return PTR_ERR(memory);
+
+	RUNL_TRACE(runl, "RAMRL: update start:%08x", start);
+	offset = start;
+
+	nvkm_kmap(memory);
+	nvkm_runl_foreach_cgrp(cgrp, runl) {
+		if (cgrp->hw) {
+			CGRP_TRACE(cgrp, "     RAMRL+%08x: chans:%d", offset, cgrp->chan_nr);
+			runl->func->insert_cgrp(cgrp, memory, offset);
+			offset += runl->func->size;
+		}
+
+		nvkm_cgrp_foreach_chan(chan, cgrp) {
+			CHAN_TRACE(chan, "RAMRL+%08x: [%s]", offset, chan->name);
+			runl->func->insert_chan(chan, memory, offset);
+			offset += runl->func->size;
+		}
+	}
+	nvkm_done(memory);
+
+	/*TODO: look into using features on newer HW to guarantee forward progress. */
+	list_rotate_left(&runl->cgrps);
+
+	count = (offset - start) / runl->func->size;
+	RUNL_TRACE(runl, "RAMRL: commit start:%08x count:%d", start, count);
+
+	runl->func->commit(runl, memory, start, count);
+	return 0;
+}
+
+const struct nvkm_runl_func
+nv50_runl = {
+	.size = 4,
+	.update = nv50_runl_update,
+	.insert_chan = nv50_runl_insert_chan,
+	.commit = nv50_runl_commit,
+	.wait = nv50_runl_wait,
+	.pending = nv50_runl_pending,
+};
+
 void
-nv50_fifo_init(struct nvkm_fifo *base)
+nv50_fifo_init(struct nvkm_fifo *fifo)
 {
-	struct nv50_fifo *fifo = nv50_fifo(base);
-	struct nvkm_device *device = fifo->base.engine.subdev.device;
+	struct nvkm_runl *runl = nvkm_runl_first(fifo);
+	struct nvkm_device *device = fifo->engine.subdev.device;
 	int i;
 
 	nvkm_mask(device, 0x000200, 0x00000100, 0x00000000);
@@ -89,61 +352,47 @@ nv50_fifo_init(struct nvkm_fifo *base)
 
 	for (i = 0; i < 128; i++)
 		nvkm_wr32(device, 0x002600 + (i * 4), 0x00000000);
-	nv50_fifo_runlist_update_locked(fifo);
+
+	atomic_set(&runl->changed, 1);
+	runl->func->update(runl);
 
 	nvkm_wr32(device, 0x003200, 0x00000001);
 	nvkm_wr32(device, 0x003250, 0x00000001);
 	nvkm_wr32(device, 0x002500, 0x00000001);
 }
 
-void *
-nv50_fifo_dtor(struct nvkm_fifo *base)
+int
+nv50_fifo_chid_ctor(struct nvkm_fifo *fifo, int nr)
 {
-	struct nv50_fifo *fifo = nv50_fifo(base);
-	nvkm_memory_unref(&fifo->runlist[1]);
-	nvkm_memory_unref(&fifo->runlist[0]);
-	return fifo;
+	/* CHID 0 is unusable (some kind of PIO channel?), 127 is "channel invalid". */
+	return nvkm_chid_new(&nvkm_chan_event, &fifo->engine.subdev, nr, 1, nr - 2, &fifo->chid);
 }
 
 int
-nv50_fifo_new_(const struct nvkm_fifo_func *func, struct nvkm_device *device,
-	       enum nvkm_subdev_type type, int inst, struct nvkm_fifo **pfifo)
+nv50_fifo_chid_nr(struct nvkm_fifo *fifo)
 {
-	struct nv50_fifo *fifo;
-	int ret;
-
-	if (!(fifo = kzalloc(sizeof(*fifo), GFP_KERNEL)))
-		return -ENOMEM;
-	*pfifo = &fifo->base;
-
-	ret = nvkm_fifo_ctor(func, device, type, inst, 128, &fifo->base);
-	if (ret)
-		return ret;
-
-	set_bit(0, fifo->base.mask); /* PIO channel */
-	set_bit(127, fifo->base.mask); /* inactive channel */
-	return 0;
+	return 128;
 }
 
 static const struct nvkm_fifo_func
 nv50_fifo = {
-	.dtor = nv50_fifo_dtor,
-	.oneinit = nv50_fifo_oneinit,
+	.chid_nr = nv50_fifo_chid_nr,
+	.chid_ctor = nv50_fifo_chid_ctor,
+	.runl_ctor = nv04_fifo_runl_ctor,
 	.init = nv50_fifo_init,
 	.intr = nv04_fifo_intr,
-	.engine_id = nv04_fifo_engine_id,
-	.id_engine = nv04_fifo_id_engine,
 	.pause = nv04_fifo_pause,
 	.start = nv04_fifo_start,
-	.chan = {
-		&nv50_fifo_gpfifo_oclass,
-		NULL
-	},
+	.runl = &nv50_runl,
+	.engn = &nv50_engn,
+	.engn_sw = &nv50_engn_sw,
+	.cgrp = {{                           }, &nv04_cgrp },
+	.chan = {{ 0, 0, NV50_CHANNEL_GPFIFO }, &nv50_chan },
 };
 
 int
 nv50_fifo_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
 	      struct nvkm_fifo **pfifo)
 {
-	return nv50_fifo_new_(&nv50_fifo, device, type, inst, pfifo);
+	return nvkm_fifo_new_(&nv50_fifo, device, type, inst, pfifo);
 }