1 files changed, 428 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/user.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/user.c
new file mode 100644
index 000000000..45f509c11
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/user.c
@@ -0,0 +1,428 @@
+/*
+ * 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
+ */
+#define nvkm_udevice(p) container_of((p), struct nvkm_udevice, object)
+#include "priv.h"
+#include "ctrl.h"
+
+#include <core/client.h>
+#include <subdev/fb.h>
+#include <subdev/instmem.h>
+#include <subdev/timer.h>
+
+#include <nvif/class.h>
+#include <nvif/cl0080.h>
+#include <nvif/unpack.h>
+
+struct nvkm_udevice {
+	struct nvkm_object object;
+	struct nvkm_device *device;
+};
+
+static int
+nvkm_udevice_info_subdev(struct nvkm_device *device, u64 mthd, u64 *data)
+{
+	struct nvkm_subdev *subdev;
+	enum nvkm_subdev_type type;
+
+	switch (mthd & NV_DEVICE_INFO_UNIT) {
+	case NV_DEVICE_HOST(0): type = NVKM_ENGINE_FIFO; break;
+	default:
+		return -EINVAL;
+	}
+
+	subdev = nvkm_device_subdev(device, type, 0);
+	if (subdev)
+		return nvkm_subdev_info(subdev, mthd, data);
+	return -ENODEV;
+}
+
+static void
+nvkm_udevice_info_v1(struct nvkm_device *device,
+		     struct nv_device_info_v1_data *args)
+{
+	if (args->mthd & NV_DEVICE_INFO_UNIT) {
+		if (nvkm_udevice_info_subdev(device, args->mthd, &args->data))
+			args->mthd = NV_DEVICE_INFO_INVALID;
+		return;
+	}
+	args->mthd = NV_DEVICE_INFO_INVALID;
+}
+
+static int
+nvkm_udevice_info(struct nvkm_udevice *udev, void *data, u32 size)
+{
+	struct nvkm_object *object = &udev->object;
+	struct nvkm_device *device = udev->device;
+	struct nvkm_fb *fb = device->fb;
+	struct nvkm_instmem *imem = device->imem;
+	union {
+		struct nv_device_info_v0 v0;
+		struct nv_device_info_v1 v1;
+	} *args = data;
+	int ret = -ENOSYS, i;
+
+	nvif_ioctl(object, "device info size %d\n", size);
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v1, 1, 1, true))) {
+		nvif_ioctl(object, "device info vers %d count %d\n",
+			   args->v1.version, args->v1.count);
+		if (args->v1.count * sizeof(args->v1.data[0]) == size) {
+			for (i = 0; i < args->v1.count; i++)
+				nvkm_udevice_info_v1(device, &args->v1.data[i]);
+			return 0;
+		}
+		return -EINVAL;
+	} else
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
+		nvif_ioctl(object, "device info vers %d\n", args->v0.version);
+	} else
+		return ret;
+
+	switch (device->chipset) {
+	case 0x01a:
+	case 0x01f:
+	case 0x04c:
+	case 0x04e:
+	case 0x063:
+	case 0x067:
+	case 0x068:
+	case 0x0aa:
+	case 0x0ac:
+	case 0x0af:
+		args->v0.platform = NV_DEVICE_INFO_V0_IGP;
+		break;
+	default:
+		switch (device->type) {
+		case NVKM_DEVICE_PCI:
+			args->v0.platform = NV_DEVICE_INFO_V0_PCI;
+			break;
+		case NVKM_DEVICE_AGP:
+			args->v0.platform = NV_DEVICE_INFO_V0_AGP;
+			break;
+		case NVKM_DEVICE_PCIE:
+			args->v0.platform = NV_DEVICE_INFO_V0_PCIE;
+			break;
+		case NVKM_DEVICE_TEGRA:
+			args->v0.platform = NV_DEVICE_INFO_V0_SOC;
+			break;
+		default:
+			WARN_ON(1);
+			break;
+		}
+		break;
+	}
+
+	switch (device->card_type) {
+	case NV_04: args->v0.family = NV_DEVICE_INFO_V0_TNT; break;
+	case NV_10:
+	case NV_11: args->v0.family = NV_DEVICE_INFO_V0_CELSIUS; break;
+	case NV_20: args->v0.family = NV_DEVICE_INFO_V0_KELVIN; break;
+	case NV_30: args->v0.family = NV_DEVICE_INFO_V0_RANKINE; break;
+	case NV_40: args->v0.family = NV_DEVICE_INFO_V0_CURIE; break;
+	case NV_50: args->v0.family = NV_DEVICE_INFO_V0_TESLA; break;
+	case NV_C0: args->v0.family = NV_DEVICE_INFO_V0_FERMI; break;
+	case NV_E0: args->v0.family = NV_DEVICE_INFO_V0_KEPLER; break;
+	case GM100: args->v0.family = NV_DEVICE_INFO_V0_MAXWELL; break;
+	case GP100: args->v0.family = NV_DEVICE_INFO_V0_PASCAL; break;
+	case GV100: args->v0.family = NV_DEVICE_INFO_V0_VOLTA; break;
+	case TU100: args->v0.family = NV_DEVICE_INFO_V0_TURING; break;
+	case GA100: args->v0.family = NV_DEVICE_INFO_V0_AMPERE; break;
+	default:
+		args->v0.family = 0;
+		break;
+	}
+
+	args->v0.chipset  = device->chipset;
+	args->v0.revision = device->chiprev;
+	if (fb && fb->ram)
+		args->v0.ram_size = args->v0.ram_user = fb->ram->size;
+	else
+		args->v0.ram_size = args->v0.ram_user = 0;
+	if (imem && args->v0.ram_size > 0)
+		args->v0.ram_user = args->v0.ram_user - imem->reserved;
+
+	snprintf(args->v0.chip, sizeof(args->v0.chip), "%s", device->chip->name);
+	snprintf(args->v0.name, sizeof(args->v0.name), "%s", device->name);
+	return 0;
+}
+
+static int
+nvkm_udevice_time(struct nvkm_udevice *udev, void *data, u32 size)
+{
+	struct nvkm_object *object = &udev->object;
+	struct nvkm_device *device = udev->device;
+	union {
+		struct nv_device_time_v0 v0;
+	} *args = data;
+	int ret = -ENOSYS;
+
+	nvif_ioctl(object, "device time size %d\n", size);
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
+		nvif_ioctl(object, "device time vers %d\n", args->v0.version);
+		args->v0.time = nvkm_timer_read(device->timer);
+	}
+
+	return ret;
+}
+
+static int
+nvkm_udevice_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(object);
+	nvif_ioctl(object, "device mthd %08x\n", mthd);
+	switch (mthd) {
+	case NV_DEVICE_V0_INFO:
+		return nvkm_udevice_info(udev, data, size);
+	case NV_DEVICE_V0_TIME:
+		return nvkm_udevice_time(udev, data, size);
+	default:
+		break;
+	}
+	return -EINVAL;
+}
+
+static int
+nvkm_udevice_rd08(struct nvkm_object *object, u64 addr, u8 *data)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(object);
+	*data = nvkm_rd08(udev->device, addr);
+	return 0;
+}
+
+static int
+nvkm_udevice_rd16(struct nvkm_object *object, u64 addr, u16 *data)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(object);
+	*data = nvkm_rd16(udev->device, addr);
+	return 0;
+}
+
+static int
+nvkm_udevice_rd32(struct nvkm_object *object, u64 addr, u32 *data)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(object);
+	*data = nvkm_rd32(udev->device, addr);
+	return 0;
+}
+
+static int
+nvkm_udevice_wr08(struct nvkm_object *object, u64 addr, u8 data)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(object);
+	nvkm_wr08(udev->device, addr, data);
+	return 0;
+}
+
+static int
+nvkm_udevice_wr16(struct nvkm_object *object, u64 addr, u16 data)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(object);
+	nvkm_wr16(udev->device, addr, data);
+	return 0;
+}
+
+static int
+nvkm_udevice_wr32(struct nvkm_object *object, u64 addr, u32 data)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(object);
+	nvkm_wr32(udev->device, addr, data);
+	return 0;
+}
+
+static int
+nvkm_udevice_map(struct nvkm_object *object, void *argv, u32 argc,
+		 enum nvkm_object_map *type, u64 *addr, u64 *size)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(object);
+	struct nvkm_device *device = udev->device;
+	*type = NVKM_OBJECT_MAP_IO;
+	*addr = device->func->resource_addr(device, 0);
+	*size = device->func->resource_size(device, 0);
+	return 0;
+}
+
+static int
+nvkm_udevice_fini(struct nvkm_object *object, bool suspend)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(object);
+	struct nvkm_device *device = udev->device;
+	int ret = 0;
+
+	mutex_lock(&device->mutex);
+	if (!--device->refcount) {
+		ret = nvkm_device_fini(device, suspend);
+		if (ret && suspend) {
+			device->refcount++;
+			goto done;
+		}
+	}
+
+done:
+	mutex_unlock(&device->mutex);
+	return ret;
+}
+
+static int
+nvkm_udevice_init(struct nvkm_object *object)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(object);
+	struct nvkm_device *device = udev->device;
+	int ret = 0;
+
+	mutex_lock(&device->mutex);
+	if (!device->refcount++) {
+		ret = nvkm_device_init(device);
+		if (ret) {
+			device->refcount--;
+			goto done;
+		}
+	}
+
+done:
+	mutex_unlock(&device->mutex);
+	return ret;
+}
+
+static int
+nvkm_udevice_child_new(const struct nvkm_oclass *oclass,
+		       void *data, u32 size, struct nvkm_object **pobject)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(oclass->parent);
+	const struct nvkm_device_oclass *sclass = oclass->priv;
+	return sclass->ctor(udev->device, oclass, data, size, pobject);
+}
+
+static int
+nvkm_udevice_child_get(struct nvkm_object *object, int index,
+		       struct nvkm_oclass *oclass)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(object);
+	struct nvkm_device *device = udev->device;
+	struct nvkm_engine *engine;
+	u64 mask = (1ULL << NVKM_ENGINE_DMAOBJ) |
+		   (1ULL << NVKM_ENGINE_FIFO) |
+		   (1ULL << NVKM_ENGINE_DISP) |
+		   (1ULL << NVKM_ENGINE_PM);
+	const struct nvkm_device_oclass *sclass = NULL;
+	int i;
+
+	for (; i = __ffs64(mask), mask && !sclass; mask &= ~(1ULL << i)) {
+		if (!(engine = nvkm_device_engine(device, i, 0)) ||
+		    !(engine->func->base.sclass))
+			continue;
+		oclass->engine = engine;
+
+		index -= engine->func->base.sclass(oclass, index, &sclass);
+	}
+
+	if (!sclass) {
+		if (index-- == 0)
+			sclass = &nvkm_control_oclass;
+		else if (device->mmu && index-- == 0)
+			sclass = &device->mmu->user;
+		else if (device->fault && index-- == 0)
+			sclass = &device->fault->user;
+		else
+			return -EINVAL;
+
+		oclass->base = sclass->base;
+		oclass->engine = NULL;
+	}
+
+	oclass->ctor = nvkm_udevice_child_new;
+	oclass->priv = sclass;
+	return 0;
+}
+
+static const struct nvkm_object_func
+nvkm_udevice_super = {
+	.init = nvkm_udevice_init,
+	.fini = nvkm_udevice_fini,
+	.mthd = nvkm_udevice_mthd,
+	.map = nvkm_udevice_map,
+	.rd08 = nvkm_udevice_rd08,
+	.rd16 = nvkm_udevice_rd16,
+	.rd32 = nvkm_udevice_rd32,
+	.wr08 = nvkm_udevice_wr08,
+	.wr16 = nvkm_udevice_wr16,
+	.wr32 = nvkm_udevice_wr32,
+	.sclass = nvkm_udevice_child_get,
+};
+
+static const struct nvkm_object_func
+nvkm_udevice = {
+	.init = nvkm_udevice_init,
+	.fini = nvkm_udevice_fini,
+	.mthd = nvkm_udevice_mthd,
+	.sclass = nvkm_udevice_child_get,
+};
+
+static int
+nvkm_udevice_new(const struct nvkm_oclass *oclass, void *data, u32 size,
+		 struct nvkm_object **pobject)
+{
+	union {
+		struct nv_device_v0 v0;
+	} *args = data;
+	struct nvkm_client *client = oclass->client;
+	struct nvkm_object *parent = &client->object;
+	const struct nvkm_object_func *func;
+	struct nvkm_udevice *udev;
+	int ret = -ENOSYS;
+
+	nvif_ioctl(parent, "create device size %d\n", size);
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
+		nvif_ioctl(parent, "create device v%d device %016llx\n",
+			   args->v0.version, args->v0.device);
+	} else
+		return ret;
+
+	/* give priviledged clients register access */
+	if (args->v0.priv)
+		func = &nvkm_udevice_super;
+	else
+		func = &nvkm_udevice;
+
+	if (!(udev = kzalloc(sizeof(*udev), GFP_KERNEL)))
+		return -ENOMEM;
+	nvkm_object_ctor(func, oclass, &udev->object);
+	*pobject = &udev->object;
+
+	/* find the device that matches what the client requested */
+	if (args->v0.device != ~0)
+		udev->device = nvkm_device_find(args->v0.device);
+	else
+		udev->device = nvkm_device_find(client->device);
+	if (!udev->device)
+		return -ENODEV;
+
+	return 0;
+}
+
+const struct nvkm_sclass
+nvkm_udevice_sclass = {
+	.oclass = NV_DEVICE,
+	.minver = 0,
+	.maxver = 0,
+	.ctor = nvkm_udevice_new,
+};