ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/gpu/drm/nouveau/nvif/object.c b/marvell/linux/drivers/gpu/drm/nouveau/nvif/object.c
new file mode 100644
index 0000000..ef3f628
--- /dev/null
+++ b/marvell/linux/drivers/gpu/drm/nouveau/nvif/object.c
@@ -0,0 +1,305 @@
+/*
+ * Copyright 2014 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 <bskeggs@redhat.com>
+ */
+
+#include <nvif/object.h>
+#include <nvif/client.h>
+#include <nvif/driver.h>
+#include <nvif/ioctl.h>
+
+int
+nvif_object_ioctl(struct nvif_object *object, void *data, u32 size, void **hack)
+{
+ struct nvif_client *client = object->client;
+ union {
+ struct nvif_ioctl_v0 v0;
+ } *args = data;
+
+ if (size >= sizeof(*args) && args->v0.version == 0) {
+ if (object != &client->object)
+ args->v0.object = nvif_handle(object);
+ else
+ args->v0.object = 0;
+ args->v0.owner = NVIF_IOCTL_V0_OWNER_ANY;
+ } else
+ return -ENOSYS;
+
+ return client->driver->ioctl(client->object.priv, client->super,
+ data, size, hack);
+}
+
+void
+nvif_object_sclass_put(struct nvif_sclass **psclass)
+{
+ kfree(*psclass);
+ *psclass = NULL;
+}
+
+int
+nvif_object_sclass_get(struct nvif_object *object, struct nvif_sclass **psclass)
+{
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_sclass_v0 sclass;
+ } *args = NULL;
+ int ret, cnt = 0, i;
+ u32 size;
+
+ while (1) {
+ size = sizeof(*args) + cnt * sizeof(args->sclass.oclass[0]);
+ if (!(args = kmalloc(size, GFP_KERNEL)))
+ return -ENOMEM;
+ args->ioctl.version = 0;
+ args->ioctl.type = NVIF_IOCTL_V0_SCLASS;
+ args->sclass.version = 0;
+ args->sclass.count = cnt;
+
+ ret = nvif_object_ioctl(object, args, size, NULL);
+ if (ret == 0 && args->sclass.count <= cnt)
+ break;
+ cnt = args->sclass.count;
+ kfree(args);
+ if (ret != 0)
+ return ret;
+ }
+
+ *psclass = kcalloc(args->sclass.count, sizeof(**psclass), GFP_KERNEL);
+ if (*psclass) {
+ for (i = 0; i < args->sclass.count; i++) {
+ (*psclass)[i].oclass = args->sclass.oclass[i].oclass;
+ (*psclass)[i].minver = args->sclass.oclass[i].minver;
+ (*psclass)[i].maxver = args->sclass.oclass[i].maxver;
+ }
+ ret = args->sclass.count;
+ } else {
+ ret = -ENOMEM;
+ }
+
+ kfree(args);
+ return ret;
+}
+
+u32
+nvif_object_rd(struct nvif_object *object, int size, u64 addr)
+{
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_rd_v0 rd;
+ } args = {
+ .ioctl.type = NVIF_IOCTL_V0_RD,
+ .rd.size = size,
+ .rd.addr = addr,
+ };
+ int ret = nvif_object_ioctl(object, &args, sizeof(args), NULL);
+ if (ret) {
+ /*XXX: warn? */
+ return 0;
+ }
+ return args.rd.data;
+}
+
+void
+nvif_object_wr(struct nvif_object *object, int size, u64 addr, u32 data)
+{
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_wr_v0 wr;
+ } args = {
+ .ioctl.type = NVIF_IOCTL_V0_WR,
+ .wr.size = size,
+ .wr.addr = addr,
+ .wr.data = data,
+ };
+ int ret = nvif_object_ioctl(object, &args, sizeof(args), NULL);
+ if (ret) {
+ /*XXX: warn? */
+ }
+}
+
+int
+nvif_object_mthd(struct nvif_object *object, u32 mthd, void *data, u32 size)
+{
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_mthd_v0 mthd;
+ } *args;
+ u8 stack[128];
+ int ret;
+
+ if (sizeof(*args) + size > sizeof(stack)) {
+ if (!(args = kmalloc(sizeof(*args) + size, GFP_KERNEL)))
+ return -ENOMEM;
+ } else {
+ args = (void *)stack;
+ }
+ args->ioctl.version = 0;
+ args->ioctl.type = NVIF_IOCTL_V0_MTHD;
+ args->mthd.version = 0;
+ args->mthd.method = mthd;
+
+ memcpy(args->mthd.data, data, size);
+ ret = nvif_object_ioctl(object, args, sizeof(*args) + size, NULL);
+ memcpy(data, args->mthd.data, size);
+ if (args != (void *)stack)
+ kfree(args);
+ return ret;
+}
+
+void
+nvif_object_unmap_handle(struct nvif_object *object)
+{
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_unmap unmap;
+ } args = {
+ .ioctl.type = NVIF_IOCTL_V0_UNMAP,
+ };
+
+ nvif_object_ioctl(object, &args, sizeof(args), NULL);
+}
+
+int
+nvif_object_map_handle(struct nvif_object *object, void *argv, u32 argc,
+ u64 *handle, u64 *length)
+{
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_map_v0 map;
+ } *args;
+ u32 argn = sizeof(*args) + argc;
+ int ret, maptype;
+
+ if (!(args = kzalloc(argn, GFP_KERNEL)))
+ return -ENOMEM;
+ args->ioctl.type = NVIF_IOCTL_V0_MAP;
+ memcpy(args->map.data, argv, argc);
+
+ ret = nvif_object_ioctl(object, args, argn, NULL);
+ *handle = args->map.handle;
+ *length = args->map.length;
+ maptype = args->map.type;
+ kfree(args);
+ return ret ? ret : (maptype == NVIF_IOCTL_MAP_V0_IO);
+}
+
+void
+nvif_object_unmap(struct nvif_object *object)
+{
+ struct nvif_client *client = object->client;
+ if (object->map.ptr) {
+ if (object->map.size) {
+ client->driver->unmap(client, object->map.ptr,
+ object->map.size);
+ object->map.size = 0;
+ }
+ object->map.ptr = NULL;
+ nvif_object_unmap_handle(object);
+ }
+}
+
+int
+nvif_object_map(struct nvif_object *object, void *argv, u32 argc)
+{
+ struct nvif_client *client = object->client;
+ u64 handle, length;
+ int ret = nvif_object_map_handle(object, argv, argc, &handle, &length);
+ if (ret >= 0) {
+ if (ret) {
+ object->map.ptr = client->driver->map(client,
+ handle,
+ length);
+ if (ret = -ENOMEM, object->map.ptr) {
+ object->map.size = length;
+ return 0;
+ }
+ } else {
+ object->map.ptr = (void *)(unsigned long)handle;
+ return 0;
+ }
+ nvif_object_unmap_handle(object);
+ }
+ return ret;
+}
+
+void
+nvif_object_fini(struct nvif_object *object)
+{
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_del del;
+ } args = {
+ .ioctl.type = NVIF_IOCTL_V0_DEL,
+ };
+
+ if (!object->client)
+ return;
+
+ nvif_object_unmap(object);
+ nvif_object_ioctl(object, &args, sizeof(args), NULL);
+ object->client = NULL;
+}
+
+int
+nvif_object_init(struct nvif_object *parent, u32 handle, s32 oclass,
+ void *data, u32 size, struct nvif_object *object)
+{
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_new_v0 new;
+ } *args;
+ int ret = 0;
+
+ object->client = NULL;
+ object->handle = handle;
+ object->oclass = oclass;
+ object->map.ptr = NULL;
+ object->map.size = 0;
+
+ if (parent) {
+ if (!(args = kmalloc(sizeof(*args) + size, GFP_KERNEL))) {
+ nvif_object_fini(object);
+ return -ENOMEM;
+ }
+
+ args->ioctl.version = 0;
+ args->ioctl.type = NVIF_IOCTL_V0_NEW;
+ args->new.version = 0;
+ args->new.route = parent->client->route;
+ args->new.token = nvif_handle(object);
+ args->new.object = nvif_handle(object);
+ args->new.handle = handle;
+ args->new.oclass = oclass;
+
+ memcpy(args->new.data, data, size);
+ ret = nvif_object_ioctl(parent, args, sizeof(*args) + size,
+ &object->priv);
+ memcpy(data, args->new.data, size);
+ kfree(args);
+ if (ret == 0)
+ object->client = parent->client;
+ }
+
+ if (ret)
+ nvif_object_fini(object);
+ return ret;
+}