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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/gpu/drm/nouveau/nouveau_abi16.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_abi16.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_abi16.c639
1 files changed, 639 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c
new file mode 100644
index 000000000..5bee655e7
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c
@@ -0,0 +1,639 @@
+/*
+ * 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.
+ *
+ */
+
+#include <nvif/client.h>
+#include <nvif/driver.h>
+#include <nvif/fifo.h>
+#include <nvif/ioctl.h>
+#include <nvif/class.h>
+#include <nvif/cl0002.h>
+#include <nvif/cla06f.h>
+#include <nvif/unpack.h>
+
+#include "nouveau_drv.h"
+#include "nouveau_dma.h"
+#include "nouveau_gem.h"
+#include "nouveau_chan.h"
+#include "nouveau_abi16.h"
+#include "nouveau_vmm.h"
+
+static struct nouveau_abi16 *
+nouveau_abi16(struct drm_file *file_priv)
+{
+ struct nouveau_cli *cli = nouveau_cli(file_priv);
+ if (!cli->abi16) {
+ struct nouveau_abi16 *abi16;
+ cli->abi16 = abi16 = kzalloc(sizeof(*abi16), GFP_KERNEL);
+ if (cli->abi16) {
+ struct nv_device_v0 args = {
+ .device = ~0ULL,
+ };
+
+ INIT_LIST_HEAD(&abi16->channels);
+
+ /* allocate device object targeting client's default
+ * device (ie. the one that belongs to the fd it
+ * opened)
+ */
+ if (nvif_device_ctor(&cli->base.object, "abi16Device",
+ 0, NV_DEVICE, &args, sizeof(args),
+ &abi16->device) == 0)
+ return cli->abi16;
+
+ kfree(cli->abi16);
+ cli->abi16 = NULL;
+ }
+ }
+ return cli->abi16;
+}
+
+struct nouveau_abi16 *
+nouveau_abi16_get(struct drm_file *file_priv)
+{
+ struct nouveau_cli *cli = nouveau_cli(file_priv);
+ mutex_lock(&cli->mutex);
+ if (nouveau_abi16(file_priv))
+ return cli->abi16;
+ mutex_unlock(&cli->mutex);
+ return NULL;
+}
+
+int
+nouveau_abi16_put(struct nouveau_abi16 *abi16, int ret)
+{
+ struct nouveau_cli *cli = (void *)abi16->device.object.client;
+ mutex_unlock(&cli->mutex);
+ return ret;
+}
+
+s32
+nouveau_abi16_swclass(struct nouveau_drm *drm)
+{
+ switch (drm->client.device.info.family) {
+ case NV_DEVICE_INFO_V0_TNT:
+ return NVIF_CLASS_SW_NV04;
+ case NV_DEVICE_INFO_V0_CELSIUS:
+ case NV_DEVICE_INFO_V0_KELVIN:
+ case NV_DEVICE_INFO_V0_RANKINE:
+ case NV_DEVICE_INFO_V0_CURIE:
+ return NVIF_CLASS_SW_NV10;
+ case NV_DEVICE_INFO_V0_TESLA:
+ return NVIF_CLASS_SW_NV50;
+ case NV_DEVICE_INFO_V0_FERMI:
+ case NV_DEVICE_INFO_V0_KEPLER:
+ case NV_DEVICE_INFO_V0_MAXWELL:
+ case NV_DEVICE_INFO_V0_PASCAL:
+ case NV_DEVICE_INFO_V0_VOLTA:
+ return NVIF_CLASS_SW_GF100;
+ }
+
+ return 0x0000;
+}
+
+static void
+nouveau_abi16_ntfy_fini(struct nouveau_abi16_chan *chan,
+ struct nouveau_abi16_ntfy *ntfy)
+{
+ nvif_object_dtor(&ntfy->object);
+ nvkm_mm_free(&chan->heap, &ntfy->node);
+ list_del(&ntfy->head);
+ kfree(ntfy);
+}
+
+static void
+nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
+ struct nouveau_abi16_chan *chan)
+{
+ struct nouveau_abi16_ntfy *ntfy, *temp;
+
+ /* wait for all activity to stop before cleaning up */
+ if (chan->chan)
+ nouveau_channel_idle(chan->chan);
+
+ /* cleanup notifier state */
+ list_for_each_entry_safe(ntfy, temp, &chan->notifiers, head) {
+ nouveau_abi16_ntfy_fini(chan, ntfy);
+ }
+
+ if (chan->ntfy) {
+ nouveau_vma_del(&chan->ntfy_vma);
+ nouveau_bo_unpin(chan->ntfy);
+ drm_gem_object_put(&chan->ntfy->bo.base);
+ }
+
+ if (chan->heap.block_size)
+ nvkm_mm_fini(&chan->heap);
+
+ /* destroy channel object, all children will be killed too */
+ if (chan->chan) {
+ nvif_object_dtor(&chan->ce);
+ nouveau_channel_del(&chan->chan);
+ }
+
+ list_del(&chan->head);
+ kfree(chan);
+}
+
+void
+nouveau_abi16_fini(struct nouveau_abi16 *abi16)
+{
+ struct nouveau_cli *cli = (void *)abi16->device.object.client;
+ struct nouveau_abi16_chan *chan, *temp;
+
+ /* cleanup channels */
+ list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
+ nouveau_abi16_chan_fini(abi16, chan);
+ }
+
+ /* destroy the device object */
+ nvif_device_dtor(&abi16->device);
+
+ kfree(cli->abi16);
+ cli->abi16 = NULL;
+}
+
+int
+nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
+{
+ struct nouveau_cli *cli = nouveau_cli(file_priv);
+ struct nouveau_drm *drm = nouveau_drm(dev);
+ struct nvif_device *device = &drm->client.device;
+ struct nvkm_gr *gr = nvxx_gr(device);
+ struct drm_nouveau_getparam *getparam = data;
+ struct pci_dev *pdev = to_pci_dev(dev->dev);
+
+ switch (getparam->param) {
+ case NOUVEAU_GETPARAM_CHIPSET_ID:
+ getparam->value = device->info.chipset;
+ break;
+ case NOUVEAU_GETPARAM_PCI_VENDOR:
+ if (device->info.platform != NV_DEVICE_INFO_V0_SOC)
+ getparam->value = pdev->vendor;
+ else
+ getparam->value = 0;
+ break;
+ case NOUVEAU_GETPARAM_PCI_DEVICE:
+ if (device->info.platform != NV_DEVICE_INFO_V0_SOC)
+ getparam->value = pdev->device;
+ else
+ getparam->value = 0;
+ break;
+ case NOUVEAU_GETPARAM_BUS_TYPE:
+ switch (device->info.platform) {
+ case NV_DEVICE_INFO_V0_AGP : getparam->value = 0; break;
+ case NV_DEVICE_INFO_V0_PCI : getparam->value = 1; break;
+ case NV_DEVICE_INFO_V0_PCIE: getparam->value = 2; break;
+ case NV_DEVICE_INFO_V0_SOC : getparam->value = 3; break;
+ case NV_DEVICE_INFO_V0_IGP :
+ if (!pci_is_pcie(pdev))
+ getparam->value = 1;
+ else
+ getparam->value = 2;
+ break;
+ default:
+ WARN_ON(1);
+ break;
+ }
+ break;
+ case NOUVEAU_GETPARAM_FB_SIZE:
+ getparam->value = drm->gem.vram_available;
+ break;
+ case NOUVEAU_GETPARAM_AGP_SIZE:
+ getparam->value = drm->gem.gart_available;
+ break;
+ case NOUVEAU_GETPARAM_VM_VRAM_BASE:
+ getparam->value = 0; /* deprecated */
+ break;
+ case NOUVEAU_GETPARAM_PTIMER_TIME:
+ getparam->value = nvif_device_time(device);
+ break;
+ case NOUVEAU_GETPARAM_HAS_BO_USAGE:
+ getparam->value = 1;
+ break;
+ case NOUVEAU_GETPARAM_HAS_PAGEFLIP:
+ getparam->value = 1;
+ break;
+ case NOUVEAU_GETPARAM_GRAPH_UNITS:
+ getparam->value = nvkm_gr_units(gr);
+ break;
+ default:
+ NV_PRINTK(dbg, cli, "unknown parameter %lld\n", getparam->param);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int
+nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
+{
+ struct drm_nouveau_channel_alloc *init = data;
+ struct nouveau_cli *cli = nouveau_cli(file_priv);
+ struct nouveau_drm *drm = nouveau_drm(dev);
+ struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
+ struct nouveau_abi16_chan *chan;
+ struct nvif_device *device;
+ u64 engine;
+ int ret;
+
+ if (unlikely(!abi16))
+ return -ENOMEM;
+
+ if (!drm->channel)
+ return nouveau_abi16_put(abi16, -ENODEV);
+
+ device = &abi16->device;
+
+ /* hack to allow channel engine type specification on kepler */
+ if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
+ if (init->fb_ctxdma_handle == ~0) {
+ switch (init->tt_ctxdma_handle) {
+ case 0x01: engine = NV_DEVICE_HOST_RUNLIST_ENGINES_GR ; break;
+ case 0x02: engine = NV_DEVICE_HOST_RUNLIST_ENGINES_MSPDEC; break;
+ case 0x04: engine = NV_DEVICE_HOST_RUNLIST_ENGINES_MSPPP ; break;
+ case 0x08: engine = NV_DEVICE_HOST_RUNLIST_ENGINES_MSVLD ; break;
+ case 0x30: engine = NV_DEVICE_HOST_RUNLIST_ENGINES_CE ; break;
+ default:
+ return nouveau_abi16_put(abi16, -ENOSYS);
+ }
+ } else {
+ engine = NV_DEVICE_HOST_RUNLIST_ENGINES_GR;
+ }
+
+ if (engine != NV_DEVICE_HOST_RUNLIST_ENGINES_CE)
+ engine = nvif_fifo_runlist(device, engine);
+ else
+ engine = nvif_fifo_runlist_ce(device);
+ init->fb_ctxdma_handle = engine;
+ init->tt_ctxdma_handle = 0;
+ }
+
+ if (init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0)
+ return nouveau_abi16_put(abi16, -EINVAL);
+
+ /* allocate "abi16 channel" data and make up a handle for it */
+ chan = kzalloc(sizeof(*chan), GFP_KERNEL);
+ if (!chan)
+ return nouveau_abi16_put(abi16, -ENOMEM);
+
+ INIT_LIST_HEAD(&chan->notifiers);
+ list_add(&chan->head, &abi16->channels);
+
+ /* create channel object and initialise dma and fence management */
+ ret = nouveau_channel_new(drm, device, init->fb_ctxdma_handle,
+ init->tt_ctxdma_handle, false, &chan->chan);
+ if (ret)
+ goto done;
+
+ init->channel = chan->chan->chid;
+
+ if (device->info.family >= NV_DEVICE_INFO_V0_TESLA)
+ init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM |
+ NOUVEAU_GEM_DOMAIN_GART;
+ else
+ if (chan->chan->push.buffer->bo.resource->mem_type == TTM_PL_VRAM)
+ init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM;
+ else
+ init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART;
+
+ if (device->info.family < NV_DEVICE_INFO_V0_CELSIUS) {
+ init->subchan[0].handle = 0x00000000;
+ init->subchan[0].grclass = 0x0000;
+ init->subchan[1].handle = chan->chan->nvsw.handle;
+ init->subchan[1].grclass = 0x506e;
+ init->nr_subchan = 2;
+ }
+
+ /* Workaround "nvc0" gallium driver using classes it doesn't allocate on
+ * Kepler and above. NVKM no longer always sets CE_CTX_VALID as part of
+ * channel init, now we know what that stuff actually is.
+ *
+ * Doesn't matter for Kepler/Pascal, CE context stored in NV_RAMIN.
+ *
+ * Userspace was fixed prior to adding Ampere support.
+ */
+ switch (device->info.family) {
+ case NV_DEVICE_INFO_V0_VOLTA:
+ ret = nvif_object_ctor(&chan->chan->user, "abi16CeWar", 0, VOLTA_DMA_COPY_A,
+ NULL, 0, &chan->ce);
+ if (ret)
+ goto done;
+ break;
+ case NV_DEVICE_INFO_V0_TURING:
+ ret = nvif_object_ctor(&chan->chan->user, "abi16CeWar", 0, TURING_DMA_COPY_A,
+ NULL, 0, &chan->ce);
+ if (ret)
+ goto done;
+ break;
+ default:
+ break;
+ }
+
+ /* Named memory object area */
+ ret = nouveau_gem_new(cli, PAGE_SIZE, 0, NOUVEAU_GEM_DOMAIN_GART,
+ 0, 0, &chan->ntfy);
+ if (ret == 0)
+ ret = nouveau_bo_pin(chan->ntfy, NOUVEAU_GEM_DOMAIN_GART,
+ false);
+ if (ret)
+ goto done;
+
+ if (device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
+ ret = nouveau_vma_new(chan->ntfy, chan->chan->vmm,
+ &chan->ntfy_vma);
+ if (ret)
+ goto done;
+ }
+
+ ret = drm_gem_handle_create(file_priv, &chan->ntfy->bo.base,
+ &init->notifier_handle);
+ if (ret)
+ goto done;
+
+ ret = nvkm_mm_init(&chan->heap, 0, 0, PAGE_SIZE, 1);
+done:
+ if (ret)
+ nouveau_abi16_chan_fini(abi16, chan);
+ return nouveau_abi16_put(abi16, ret);
+}
+
+static struct nouveau_abi16_chan *
+nouveau_abi16_chan(struct nouveau_abi16 *abi16, int channel)
+{
+ struct nouveau_abi16_chan *chan;
+
+ list_for_each_entry(chan, &abi16->channels, head) {
+ if (chan->chan->chid == channel)
+ return chan;
+ }
+
+ return NULL;
+}
+
+int
+nouveau_abi16_usif(struct drm_file *file_priv, void *data, u32 size)
+{
+ union {
+ struct nvif_ioctl_v0 v0;
+ } *args = data;
+ struct nouveau_abi16_chan *chan;
+ struct nouveau_abi16 *abi16;
+ int ret = -ENOSYS;
+
+ if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
+ switch (args->v0.type) {
+ case NVIF_IOCTL_V0_NEW:
+ case NVIF_IOCTL_V0_MTHD:
+ case NVIF_IOCTL_V0_SCLASS:
+ break;
+ default:
+ return -EACCES;
+ }
+ } else
+ return ret;
+
+ if (!(abi16 = nouveau_abi16(file_priv)))
+ return -ENOMEM;
+
+ if (args->v0.token != ~0ULL) {
+ if (!(chan = nouveau_abi16_chan(abi16, args->v0.token)))
+ return -EINVAL;
+ args->v0.object = nvif_handle(&chan->chan->user);
+ args->v0.owner = NVIF_IOCTL_V0_OWNER_ANY;
+ return 0;
+ }
+
+ args->v0.object = nvif_handle(&abi16->device.object);
+ args->v0.owner = NVIF_IOCTL_V0_OWNER_ANY;
+ return 0;
+}
+
+int
+nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS)
+{
+ struct drm_nouveau_channel_free *req = data;
+ struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
+ struct nouveau_abi16_chan *chan;
+
+ if (unlikely(!abi16))
+ return -ENOMEM;
+
+ chan = nouveau_abi16_chan(abi16, req->channel);
+ if (!chan)
+ return nouveau_abi16_put(abi16, -ENOENT);
+ nouveau_abi16_chan_fini(abi16, chan);
+ return nouveau_abi16_put(abi16, 0);
+}
+
+int
+nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
+{
+ struct drm_nouveau_grobj_alloc *init = data;
+ struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
+ struct nouveau_abi16_chan *chan;
+ struct nouveau_abi16_ntfy *ntfy;
+ struct nvif_client *client;
+ struct nvif_sclass *sclass;
+ s32 oclass = 0;
+ int ret, i;
+
+ if (unlikely(!abi16))
+ return -ENOMEM;
+
+ if (init->handle == ~0)
+ return nouveau_abi16_put(abi16, -EINVAL);
+ client = abi16->device.object.client;
+
+ chan = nouveau_abi16_chan(abi16, init->channel);
+ if (!chan)
+ return nouveau_abi16_put(abi16, -ENOENT);
+
+ ret = nvif_object_sclass_get(&chan->chan->user, &sclass);
+ if (ret < 0)
+ return nouveau_abi16_put(abi16, ret);
+
+ if ((init->class & 0x00ff) == 0x006e) {
+ /* nvsw: compatibility with older 0x*6e class identifier */
+ for (i = 0; !oclass && i < ret; i++) {
+ switch (sclass[i].oclass) {
+ case NVIF_CLASS_SW_NV04:
+ case NVIF_CLASS_SW_NV10:
+ case NVIF_CLASS_SW_NV50:
+ case NVIF_CLASS_SW_GF100:
+ oclass = sclass[i].oclass;
+ break;
+ default:
+ break;
+ }
+ }
+ } else
+ if ((init->class & 0x00ff) == 0x00b1) {
+ /* msvld: compatibility with incorrect version exposure */
+ for (i = 0; i < ret; i++) {
+ if ((sclass[i].oclass & 0x00ff) == 0x00b1) {
+ oclass = sclass[i].oclass;
+ break;
+ }
+ }
+ } else
+ if ((init->class & 0x00ff) == 0x00b2) { /* mspdec */
+ /* mspdec: compatibility with incorrect version exposure */
+ for (i = 0; i < ret; i++) {
+ if ((sclass[i].oclass & 0x00ff) == 0x00b2) {
+ oclass = sclass[i].oclass;
+ break;
+ }
+ }
+ } else
+ if ((init->class & 0x00ff) == 0x00b3) { /* msppp */
+ /* msppp: compatibility with incorrect version exposure */
+ for (i = 0; i < ret; i++) {
+ if ((sclass[i].oclass & 0x00ff) == 0x00b3) {
+ oclass = sclass[i].oclass;
+ break;
+ }
+ }
+ } else {
+ oclass = init->class;
+ }
+
+ nvif_object_sclass_put(&sclass);
+ if (!oclass)
+ return nouveau_abi16_put(abi16, -EINVAL);
+
+ ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL);
+ if (!ntfy)
+ return nouveau_abi16_put(abi16, -ENOMEM);
+
+ list_add(&ntfy->head, &chan->notifiers);
+
+ client->route = NVDRM_OBJECT_ABI16;
+ ret = nvif_object_ctor(&chan->chan->user, "abi16EngObj", init->handle,
+ oclass, NULL, 0, &ntfy->object);
+ client->route = NVDRM_OBJECT_NVIF;
+
+ if (ret)
+ nouveau_abi16_ntfy_fini(chan, ntfy);
+ return nouveau_abi16_put(abi16, ret);
+}
+
+int
+nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
+{
+ struct drm_nouveau_notifierobj_alloc *info = data;
+ struct nouveau_drm *drm = nouveau_drm(dev);
+ struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
+ struct nouveau_abi16_chan *chan;
+ struct nouveau_abi16_ntfy *ntfy;
+ struct nvif_device *device = &abi16->device;
+ struct nvif_client *client;
+ struct nv_dma_v0 args = {};
+ int ret;
+
+ if (unlikely(!abi16))
+ return -ENOMEM;
+
+ /* completely unnecessary for these chipsets... */
+ if (unlikely(device->info.family >= NV_DEVICE_INFO_V0_FERMI))
+ return nouveau_abi16_put(abi16, -EINVAL);
+ client = abi16->device.object.client;
+
+ chan = nouveau_abi16_chan(abi16, info->channel);
+ if (!chan)
+ return nouveau_abi16_put(abi16, -ENOENT);
+
+ ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL);
+ if (!ntfy)
+ return nouveau_abi16_put(abi16, -ENOMEM);
+
+ list_add(&ntfy->head, &chan->notifiers);
+
+ ret = nvkm_mm_head(&chan->heap, 0, 1, info->size, info->size, 1,
+ &ntfy->node);
+ if (ret)
+ goto done;
+
+ args.start = ntfy->node->offset;
+ args.limit = ntfy->node->offset + ntfy->node->length - 1;
+ if (device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
+ args.target = NV_DMA_V0_TARGET_VM;
+ args.access = NV_DMA_V0_ACCESS_VM;
+ args.start += chan->ntfy_vma->addr;
+ args.limit += chan->ntfy_vma->addr;
+ } else
+ if (drm->agp.bridge) {
+ args.target = NV_DMA_V0_TARGET_AGP;
+ args.access = NV_DMA_V0_ACCESS_RDWR;
+ args.start += drm->agp.base + chan->ntfy->offset;
+ args.limit += drm->agp.base + chan->ntfy->offset;
+ } else {
+ args.target = NV_DMA_V0_TARGET_VM;
+ args.access = NV_DMA_V0_ACCESS_RDWR;
+ args.start += chan->ntfy->offset;
+ args.limit += chan->ntfy->offset;
+ }
+
+ client->route = NVDRM_OBJECT_ABI16;
+ ret = nvif_object_ctor(&chan->chan->user, "abi16Ntfy", info->handle,
+ NV_DMA_IN_MEMORY, &args, sizeof(args),
+ &ntfy->object);
+ client->route = NVDRM_OBJECT_NVIF;
+ if (ret)
+ goto done;
+
+ info->offset = ntfy->node->offset;
+done:
+ if (ret)
+ nouveau_abi16_ntfy_fini(chan, ntfy);
+ return nouveau_abi16_put(abi16, ret);
+}
+
+int
+nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)
+{
+ struct drm_nouveau_gpuobj_free *fini = data;
+ struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
+ struct nouveau_abi16_chan *chan;
+ struct nouveau_abi16_ntfy *ntfy;
+ int ret = -ENOENT;
+
+ if (unlikely(!abi16))
+ return -ENOMEM;
+
+ chan = nouveau_abi16_chan(abi16, fini->channel);
+ if (!chan)
+ return nouveau_abi16_put(abi16, -EINVAL);
+
+ /* synchronize with the user channel and destroy the gpu object */
+ nouveau_channel_idle(chan->chan);
+
+ list_for_each_entry(ntfy, &chan->notifiers, head) {
+ if (ntfy->object.handle == fini->handle) {
+ nouveau_abi16_ntfy_fini(chan, ntfy);
+ ret = 0;
+ break;
+ }
+ }
+
+ return nouveau_abi16_put(abi16, ret);
+}