Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 387 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c
new file mode 100644
index 000000000..5db37247d
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c
@@ -0,0 +1,387 @@
+/*
+ * 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 "priv.h"
+#include "chan.h"
+#include "chid.h"
+#include "runl.h"
+#include "runq.h"
+
+#include <core/gpuobj.h>
+#include <subdev/bar.h>
+#include <subdev/mc.h>
+#include <subdev/mmu.h>
+
+#include <nvif/cl0080.h>
+#include <nvif/unpack.h>
+
+bool
+nvkm_fifo_ctxsw_in_progress(struct nvkm_engine *engine)
+{
+	struct nvkm_runl *runl;
+	struct nvkm_engn *engn;
+
+	nvkm_runl_foreach(runl, engine->subdev.device->fifo) {
+		nvkm_runl_foreach_engn(engn, runl) {
+			if (engn->engine == engine)
+				return engn->func->chsw ? engn->func->chsw(engn) : false;
+		}
+	}
+
+	return false;
+}
+
+void
+nvkm_fifo_pause(struct nvkm_fifo *fifo, unsigned long *flags)
+{
+	return fifo->func->pause(fifo, flags);
+}
+
+void
+nvkm_fifo_start(struct nvkm_fifo *fifo, unsigned long *flags)
+{
+	return fifo->func->start(fifo, flags);
+}
+
+void
+nvkm_fifo_fault(struct nvkm_fifo *fifo, struct nvkm_fault_data *info)
+{
+	return fifo->func->mmu_fault->recover(fifo, info);
+}
+
+static int
+nvkm_fifo_class_new(struct nvkm_device *device, const struct nvkm_oclass *oclass,
+		    void *argv, u32 argc, struct nvkm_object **pobject)
+{
+	struct nvkm_fifo *fifo = nvkm_fifo(oclass->engine);
+
+	if (oclass->engn == &fifo->func->cgrp.user)
+		return nvkm_ucgrp_new(fifo, oclass, argv, argc, pobject);
+
+	if (oclass->engn == &fifo->func->chan.user)
+		return nvkm_uchan_new(fifo, NULL, oclass, argv, argc, pobject);
+
+	WARN_ON(1);
+	return -ENOSYS;
+}
+
+static const struct nvkm_device_oclass
+nvkm_fifo_class = {
+	.ctor = nvkm_fifo_class_new,
+};
+
+static int
+nvkm_fifo_class_get(struct nvkm_oclass *oclass, int index, const struct nvkm_device_oclass **class)
+{
+	struct nvkm_fifo *fifo = nvkm_fifo(oclass->engine);
+	const struct nvkm_fifo_func_cgrp *cgrp = &fifo->func->cgrp;
+	const struct nvkm_fifo_func_chan *chan = &fifo->func->chan;
+	int c = 0;
+
+	/* *_CHANNEL_GROUP_* */
+	if (cgrp->user.oclass) {
+		if (c++ == index) {
+			oclass->base = cgrp->user;
+			oclass->engn = &fifo->func->cgrp.user;
+			*class = &nvkm_fifo_class;
+			return 0;
+		}
+	}
+
+	/* *_CHANNEL_DMA, *_CHANNEL_GPFIFO_* */
+	if (chan->user.oclass) {
+		if (c++ == index) {
+			oclass->base = chan->user;
+			oclass->engn = &fifo->func->chan.user;
+			*class = &nvkm_fifo_class;
+			return 0;
+		}
+	}
+
+	return c;
+}
+
+static int
+nvkm_fifo_fini(struct nvkm_engine *engine, bool suspend)
+{
+	struct nvkm_fifo *fifo = nvkm_fifo(engine);
+	struct nvkm_runl *runl;
+
+	nvkm_inth_block(&fifo->engine.subdev.inth);
+
+	nvkm_runl_foreach(runl, fifo)
+		nvkm_runl_fini(runl);
+
+	return 0;
+}
+
+static int
+nvkm_fifo_init(struct nvkm_engine *engine)
+{
+	struct nvkm_fifo *fifo = nvkm_fifo(engine);
+	struct nvkm_runq *runq;
+	struct nvkm_runl *runl;
+	u32 mask = 0;
+
+	if (fifo->func->init_pbdmas) {
+		nvkm_runq_foreach(runq, fifo)
+			mask |= BIT(runq->id);
+
+		fifo->func->init_pbdmas(fifo, mask);
+
+		nvkm_runq_foreach(runq, fifo)
+			runq->func->init(runq);
+	}
+
+	nvkm_runl_foreach(runl, fifo) {
+		if (runl->func->init)
+			runl->func->init(runl);
+	}
+
+	if (fifo->func->init)
+		fifo->func->init(fifo);
+
+	nvkm_inth_allow(&fifo->engine.subdev.inth);
+	return 0;
+}
+
+static int
+nvkm_fifo_info(struct nvkm_engine *engine, u64 mthd, u64 *data)
+{
+	struct nvkm_fifo *fifo = nvkm_fifo(engine);
+	struct nvkm_runl *runl;
+	struct nvkm_engn *engn;
+	int ret;
+
+	ret = nvkm_subdev_oneinit(&fifo->engine.subdev);
+	if (ret)
+		return ret;
+
+	switch (mthd) {
+	case NV_DEVICE_HOST_CHANNELS: *data = fifo->chid ? fifo->chid->nr : 0; return 0;
+	case NV_DEVICE_HOST_RUNLISTS:
+		*data = 0;
+		nvkm_runl_foreach(runl, fifo)
+			*data |= BIT(runl->id);
+		return 0;
+	case NV_DEVICE_HOST_RUNLIST_ENGINES:
+		runl = nvkm_runl_get(fifo, *data, 0);
+		if (runl) {
+			*data = 0;
+			nvkm_runl_foreach_engn(engn, runl) {
+#define CASE(n) case NVKM_ENGINE_##n: *data |= NV_DEVICE_HOST_RUNLIST_ENGINES_##n; break
+				switch (engn->engine->subdev.type) {
+				case NVKM_ENGINE_DMAOBJ:
+					break;
+				CASE(SW    );
+				CASE(GR    );
+				CASE(MPEG  );
+				CASE(ME    );
+				CASE(CIPHER);
+				CASE(BSP   );
+				CASE(VP    );
+				CASE(CE    );
+				CASE(SEC   );
+				CASE(MSVLD );
+				CASE(MSPDEC);
+				CASE(MSPPP );
+				CASE(MSENC );
+				CASE(VIC   );
+				CASE(SEC2  );
+				CASE(NVDEC );
+				CASE(NVENC );
+				default:
+					WARN_ON(1);
+					break;
+				}
+#undef CASE
+			}
+			return 0;
+		}
+		return -EINVAL;
+	case NV_DEVICE_HOST_RUNLIST_CHANNELS:
+		if (!fifo->chid) {
+			runl = nvkm_runl_get(fifo, *data, 0);
+			if (runl) {
+				*data = runl->chid->nr;
+				return 0;
+			}
+		}
+		return -EINVAL;
+	default:
+		break;
+	}
+
+	return -ENOSYS;
+}
+
+static int
+nvkm_fifo_oneinit(struct nvkm_engine *engine)
+{
+	struct nvkm_subdev *subdev = &engine->subdev;
+	struct nvkm_device *device = subdev->device;
+	struct nvkm_fifo *fifo = nvkm_fifo(engine);
+	struct nvkm_runl *runl;
+	struct nvkm_engn *engn;
+	int ret, nr, i;
+
+	/* Initialise CHID/CGID allocator(s) on GPUs where they aren't per-runlist. */
+	if (fifo->func->chid_nr) {
+		ret = fifo->func->chid_ctor(fifo, fifo->func->chid_nr(fifo));
+		if (ret)
+			return ret;
+	}
+
+	/* Create runqueues for each PBDMA. */
+	if (fifo->func->runq_nr) {
+		for (nr = fifo->func->runq_nr(fifo), i = 0; i < nr; i++) {
+			if (!nvkm_runq_new(fifo, i))
+				return -ENOMEM;
+		}
+	}
+
+	/* Create runlists. */
+	ret = fifo->func->runl_ctor(fifo);
+	if (ret)
+		return ret;
+
+	nvkm_runl_foreach(runl, fifo) {
+		RUNL_DEBUG(runl, "chan:%06x", runl->chan);
+		nvkm_runl_foreach_engn(engn, runl) {
+			ENGN_DEBUG(engn, "");
+		}
+	}
+
+	/* Register interrupt handler. */
+	if (fifo->func->intr) {
+		ret = nvkm_inth_add(&device->mc->intr, NVKM_INTR_SUBDEV, NVKM_INTR_PRIO_NORMAL,
+				    subdev, fifo->func->intr, &subdev->inth);
+		if (ret) {
+			nvkm_error(subdev, "intr %d\n", ret);
+			return ret;
+		}
+	}
+
+	/* Initialise non-stall intr handling. */
+	if (fifo->func->nonstall) {
+		if (fifo->func->nonstall_ctor) {
+			ret = fifo->func->nonstall_ctor(fifo);
+			if (ret < 0) {
+				nvkm_error(subdev, "nonstall %d\n", ret);
+				return ret;
+			}
+		} else {
+			ret = 1;
+		}
+
+		ret = nvkm_event_init(fifo->func->nonstall, &fifo->engine.subdev, 1, ret,
+				      &fifo->nonstall.event);
+		if (ret)
+			return ret;
+	}
+
+	/* Allocate USERD + BAR1 polling area. */
+	if (fifo->func->chan.func->userd->bar == 1) {
+		struct nvkm_vmm *bar1 = nvkm_bar_bar1_vmm(device);
+
+		ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, fifo->chid->nr *
+				      fifo->func->chan.func->userd->size, 0, true,
+				      &fifo->userd.mem);
+		if (ret)
+			return ret;
+
+		ret = nvkm_vmm_get(bar1, 12, nvkm_memory_size(fifo->userd.mem), &fifo->userd.bar1);
+		if (ret)
+			return ret;
+
+		ret = nvkm_memory_map(fifo->userd.mem, 0, bar1, fifo->userd.bar1, NULL, 0);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static void
+nvkm_fifo_preinit(struct nvkm_engine *engine)
+{
+	nvkm_mc_reset(engine->subdev.device, NVKM_ENGINE_FIFO, 0);
+}
+
+static void *
+nvkm_fifo_dtor(struct nvkm_engine *engine)
+{
+	struct nvkm_fifo *fifo = nvkm_fifo(engine);
+	struct nvkm_runl *runl, *runt;
+	struct nvkm_runq *runq, *rtmp;
+
+	if (fifo->userd.bar1)
+		nvkm_vmm_put(nvkm_bar_bar1_vmm(engine->subdev.device), &fifo->userd.bar1);
+	nvkm_memory_unref(&fifo->userd.mem);
+
+	list_for_each_entry_safe(runl, runt, &fifo->runls, head)
+		nvkm_runl_del(runl);
+	list_for_each_entry_safe(runq, rtmp, &fifo->runqs, head)
+		nvkm_runq_del(runq);
+
+	nvkm_chid_unref(&fifo->cgid);
+	nvkm_chid_unref(&fifo->chid);
+
+	nvkm_event_fini(&fifo->nonstall.event);
+	mutex_destroy(&fifo->mutex);
+	return fifo;
+}
+
+static const struct nvkm_engine_func
+nvkm_fifo = {
+	.dtor = nvkm_fifo_dtor,
+	.preinit = nvkm_fifo_preinit,
+	.oneinit = nvkm_fifo_oneinit,
+	.info = nvkm_fifo_info,
+	.init = nvkm_fifo_init,
+	.fini = nvkm_fifo_fini,
+	.base.sclass = nvkm_fifo_class_get,
+};
+
+int
+nvkm_fifo_new_(const struct nvkm_fifo_func *func, struct nvkm_device *device,
+	       enum nvkm_subdev_type type, int inst, struct nvkm_fifo **pfifo)
+{
+	struct nvkm_fifo *fifo;
+
+	if (!(fifo = *pfifo = kzalloc(sizeof(*fifo), GFP_KERNEL)))
+		return -ENOMEM;
+
+	fifo->func = func;
+	INIT_LIST_HEAD(&fifo->runqs);
+	INIT_LIST_HEAD(&fifo->runls);
+	/*TODO: Needs to be >CTXSW_TIMEOUT, so RC can recover before this is hit.
+	 *      CTXSW_TIMEOUT HW default seems to differ between GPUs, so just a
+	 *      large number for now until we support changing it.
+	 */
+	fifo->timeout.chan_msec = 10000;
+	spin_lock_init(&fifo->lock);
+	mutex_init(&fifo->mutex);
+
+	return nvkm_engine_ctor(&nvkm_fifo, device, type, inst, true, &fifo->engine);
+}