2b77c1c01b
Unmapping it while it's still in use (e.g. by M2MF) can lead to page faults and a lot of TRAP_M2MF spam in dmesg. Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
495 lines
13 KiB
C
495 lines
13 KiB
C
/*
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* Copyright 2012 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include <core/object.h>
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#include <core/client.h>
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#include <core/device.h>
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#include <core/class.h>
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#include <core/mm.h>
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#include <subdev/fb.h>
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#include <subdev/timer.h>
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#include <subdev/instmem.h>
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#include "nouveau_drm.h"
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#include "nouveau_dma.h"
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#include "nouveau_gem.h"
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#include "nouveau_chan.h"
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#include "nouveau_abi16.h"
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struct nouveau_abi16 *
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nouveau_abi16_get(struct drm_file *file_priv, struct drm_device *dev)
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{
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struct nouveau_cli *cli = nouveau_cli(file_priv);
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mutex_lock(&cli->mutex);
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if (!cli->abi16) {
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struct nouveau_abi16 *abi16;
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cli->abi16 = abi16 = kzalloc(sizeof(*abi16), GFP_KERNEL);
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if (cli->abi16) {
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INIT_LIST_HEAD(&abi16->channels);
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abi16->client = nv_object(cli);
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/* allocate device object targeting client's default
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* device (ie. the one that belongs to the fd it
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* opened)
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*/
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if (nouveau_object_new(abi16->client, NVDRM_CLIENT,
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NVDRM_DEVICE, 0x0080,
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&(struct nv_device_class) {
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.device = ~0ULL,
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},
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sizeof(struct nv_device_class),
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&abi16->device) == 0)
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return cli->abi16;
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kfree(cli->abi16);
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cli->abi16 = NULL;
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}
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mutex_unlock(&cli->mutex);
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}
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return cli->abi16;
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}
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int
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nouveau_abi16_put(struct nouveau_abi16 *abi16, int ret)
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{
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struct nouveau_cli *cli = (void *)abi16->client;
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mutex_unlock(&cli->mutex);
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return ret;
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}
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u16
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nouveau_abi16_swclass(struct nouveau_drm *drm)
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{
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switch (nv_device(drm->device)->card_type) {
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case NV_04:
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return 0x006e;
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case NV_10:
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case NV_20:
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case NV_30:
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case NV_40:
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return 0x016e;
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case NV_50:
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return 0x506e;
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case NV_C0:
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case NV_D0:
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case NV_E0:
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return 0x906e;
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}
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return 0x0000;
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}
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static void
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nouveau_abi16_ntfy_fini(struct nouveau_abi16_chan *chan,
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struct nouveau_abi16_ntfy *ntfy)
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{
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nouveau_mm_free(&chan->heap, &ntfy->node);
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list_del(&ntfy->head);
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kfree(ntfy);
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}
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static void
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nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
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struct nouveau_abi16_chan *chan)
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{
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struct nouveau_abi16_ntfy *ntfy, *temp;
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/* wait for all activity to stop before releasing notify object, which
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* may be still in use */
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if (chan->chan && chan->ntfy)
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nouveau_channel_idle(chan->chan);
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/* cleanup notifier state */
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list_for_each_entry_safe(ntfy, temp, &chan->notifiers, head) {
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nouveau_abi16_ntfy_fini(chan, ntfy);
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}
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if (chan->ntfy) {
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nouveau_bo_vma_del(chan->ntfy, &chan->ntfy_vma);
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drm_gem_object_unreference_unlocked(chan->ntfy->gem);
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}
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if (chan->heap.block_size)
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nouveau_mm_fini(&chan->heap);
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/* destroy channel object, all children will be killed too */
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if (chan->chan) {
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abi16->handles &= ~(1 << (chan->chan->handle & 0xffff));
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nouveau_channel_del(&chan->chan);
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}
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list_del(&chan->head);
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kfree(chan);
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}
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void
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nouveau_abi16_fini(struct nouveau_abi16 *abi16)
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{
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struct nouveau_cli *cli = (void *)abi16->client;
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struct nouveau_abi16_chan *chan, *temp;
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/* cleanup channels */
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list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
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nouveau_abi16_chan_fini(abi16, chan);
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}
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/* destroy the device object */
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nouveau_object_del(abi16->client, NVDRM_CLIENT, NVDRM_DEVICE);
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kfree(cli->abi16);
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cli->abi16 = NULL;
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}
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int
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nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
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{
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struct nouveau_drm *drm = nouveau_drm(dev);
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struct nouveau_device *device = nv_device(drm->device);
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struct nouveau_timer *ptimer = nouveau_timer(device);
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struct drm_nouveau_getparam *getparam = data;
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switch (getparam->param) {
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case NOUVEAU_GETPARAM_CHIPSET_ID:
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getparam->value = device->chipset;
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break;
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case NOUVEAU_GETPARAM_PCI_VENDOR:
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getparam->value = dev->pci_vendor;
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break;
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case NOUVEAU_GETPARAM_PCI_DEVICE:
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getparam->value = dev->pci_device;
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break;
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case NOUVEAU_GETPARAM_BUS_TYPE:
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if (drm_pci_device_is_agp(dev))
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getparam->value = 0;
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else
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if (!pci_is_pcie(dev->pdev))
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getparam->value = 1;
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else
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getparam->value = 2;
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break;
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case NOUVEAU_GETPARAM_FB_SIZE:
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getparam->value = drm->gem.vram_available;
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break;
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case NOUVEAU_GETPARAM_AGP_SIZE:
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getparam->value = drm->gem.gart_available;
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break;
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case NOUVEAU_GETPARAM_VM_VRAM_BASE:
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getparam->value = 0; /* deprecated */
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break;
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case NOUVEAU_GETPARAM_PTIMER_TIME:
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getparam->value = ptimer->read(ptimer);
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break;
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case NOUVEAU_GETPARAM_HAS_BO_USAGE:
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getparam->value = 1;
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break;
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case NOUVEAU_GETPARAM_HAS_PAGEFLIP:
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getparam->value = 1;
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break;
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case NOUVEAU_GETPARAM_GRAPH_UNITS:
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/* NV40 and NV50 versions are quite different, but register
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* address is the same. User is supposed to know the card
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* family anyway... */
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if (device->chipset >= 0x40) {
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getparam->value = nv_rd32(device, 0x001540);
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break;
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}
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/* FALLTHRU */
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default:
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nv_debug(device, "unknown parameter %lld\n", getparam->param);
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return -EINVAL;
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}
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return 0;
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}
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int
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nouveau_abi16_ioctl_setparam(ABI16_IOCTL_ARGS)
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{
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return -EINVAL;
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}
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int
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nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
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{
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struct drm_nouveau_channel_alloc *init = data;
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struct nouveau_cli *cli = nouveau_cli(file_priv);
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struct nouveau_drm *drm = nouveau_drm(dev);
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struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
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struct nouveau_abi16_chan *chan;
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struct nouveau_client *client;
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struct nouveau_device *device;
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struct nouveau_instmem *imem;
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struct nouveau_fb *pfb;
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int ret;
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if (unlikely(!abi16))
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return -ENOMEM;
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if (!drm->channel)
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return nouveau_abi16_put(abi16, -ENODEV);
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client = nv_client(abi16->client);
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device = nv_device(abi16->device);
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imem = nouveau_instmem(device);
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pfb = nouveau_fb(device);
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/* hack to allow channel engine type specification on kepler */
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if (device->card_type >= NV_E0) {
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if (init->fb_ctxdma_handle != ~0)
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init->fb_ctxdma_handle = NVE0_CHANNEL_IND_ENGINE_GR;
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else
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init->fb_ctxdma_handle = init->tt_ctxdma_handle;
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/* allow flips to be executed if this is a graphics channel */
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init->tt_ctxdma_handle = 0;
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if (init->fb_ctxdma_handle == NVE0_CHANNEL_IND_ENGINE_GR)
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init->tt_ctxdma_handle = 1;
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}
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if (init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0)
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return nouveau_abi16_put(abi16, -EINVAL);
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/* allocate "abi16 channel" data and make up a handle for it */
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init->channel = ffsll(~abi16->handles);
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if (!init->channel--)
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return nouveau_abi16_put(abi16, -ENOSPC);
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chan = kzalloc(sizeof(*chan), GFP_KERNEL);
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if (!chan)
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return nouveau_abi16_put(abi16, -ENOMEM);
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INIT_LIST_HEAD(&chan->notifiers);
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list_add(&chan->head, &abi16->channels);
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abi16->handles |= (1 << init->channel);
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/* create channel object and initialise dma and fence management */
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ret = nouveau_channel_new(drm, cli, NVDRM_DEVICE, NVDRM_CHAN |
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init->channel, init->fb_ctxdma_handle,
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init->tt_ctxdma_handle, &chan->chan);
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if (ret)
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goto done;
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if (device->card_type >= NV_50)
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init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM |
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NOUVEAU_GEM_DOMAIN_GART;
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else
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if (chan->chan->push.buffer->bo.mem.mem_type == TTM_PL_VRAM)
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init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM;
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else
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init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART;
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if (device->card_type < NV_C0) {
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init->subchan[0].handle = 0x00000000;
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init->subchan[0].grclass = 0x0000;
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init->subchan[1].handle = NvSw;
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init->subchan[1].grclass = 0x506e;
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init->nr_subchan = 2;
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}
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/* Named memory object area */
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ret = nouveau_gem_new(dev, PAGE_SIZE, 0, NOUVEAU_GEM_DOMAIN_GART,
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0, 0, &chan->ntfy);
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if (ret == 0)
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ret = nouveau_bo_pin(chan->ntfy, TTM_PL_FLAG_TT);
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if (ret)
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goto done;
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if (device->card_type >= NV_50) {
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ret = nouveau_bo_vma_add(chan->ntfy, client->vm,
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&chan->ntfy_vma);
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if (ret)
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goto done;
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}
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ret = drm_gem_handle_create(file_priv, chan->ntfy->gem,
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&init->notifier_handle);
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if (ret)
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goto done;
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ret = nouveau_mm_init(&chan->heap, 0, PAGE_SIZE, 1);
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done:
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if (ret)
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nouveau_abi16_chan_fini(abi16, chan);
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return nouveau_abi16_put(abi16, ret);
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}
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int
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nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS)
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{
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struct drm_nouveau_channel_free *req = data;
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struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
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struct nouveau_abi16_chan *chan;
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int ret = -ENOENT;
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if (unlikely(!abi16))
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return -ENOMEM;
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list_for_each_entry(chan, &abi16->channels, head) {
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if (chan->chan->handle == (NVDRM_CHAN | req->channel)) {
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nouveau_abi16_chan_fini(abi16, chan);
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return nouveau_abi16_put(abi16, 0);
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}
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}
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return nouveau_abi16_put(abi16, ret);
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}
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int
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nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
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{
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struct drm_nouveau_grobj_alloc *init = data;
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struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
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struct nouveau_drm *drm = nouveau_drm(dev);
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struct nouveau_object *object;
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int ret;
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if (unlikely(!abi16))
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return -ENOMEM;
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if (init->handle == ~0)
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return nouveau_abi16_put(abi16, -EINVAL);
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/* compatibility with userspace that assumes 506e for all chipsets */
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if (init->class == 0x506e) {
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init->class = nouveau_abi16_swclass(drm);
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if (init->class == 0x906e)
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return nouveau_abi16_put(abi16, 0);
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}
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ret = nouveau_object_new(abi16->client, NVDRM_CHAN | init->channel,
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init->handle, init->class, NULL, 0, &object);
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return nouveau_abi16_put(abi16, ret);
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}
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int
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nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
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{
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struct drm_nouveau_notifierobj_alloc *info = data;
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struct nouveau_drm *drm = nouveau_drm(dev);
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struct nouveau_device *device = nv_device(drm->device);
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struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
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struct nouveau_abi16_chan *chan, *temp;
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struct nouveau_abi16_ntfy *ntfy;
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struct nouveau_object *object;
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struct nv_dma_class args = {};
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int ret;
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if (unlikely(!abi16))
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return -ENOMEM;
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/* completely unnecessary for these chipsets... */
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if (unlikely(nv_device(abi16->device)->card_type >= NV_C0))
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return nouveau_abi16_put(abi16, -EINVAL);
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list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
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if (chan->chan->handle == (NVDRM_CHAN | info->channel))
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break;
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chan = NULL;
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}
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if (!chan)
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return nouveau_abi16_put(abi16, -ENOENT);
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ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL);
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if (!ntfy)
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return nouveau_abi16_put(abi16, -ENOMEM);
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list_add(&ntfy->head, &chan->notifiers);
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ntfy->handle = info->handle;
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ret = nouveau_mm_head(&chan->heap, 1, info->size, info->size, 1,
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&ntfy->node);
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if (ret)
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goto done;
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args.start = ntfy->node->offset;
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args.limit = ntfy->node->offset + ntfy->node->length - 1;
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if (device->card_type >= NV_50) {
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args.flags = NV_DMA_TARGET_VM | NV_DMA_ACCESS_VM;
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args.start += chan->ntfy_vma.offset;
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args.limit += chan->ntfy_vma.offset;
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} else
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if (drm->agp.stat == ENABLED) {
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args.flags = NV_DMA_TARGET_AGP | NV_DMA_ACCESS_RDWR;
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args.start += drm->agp.base + chan->ntfy->bo.offset;
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args.limit += drm->agp.base + chan->ntfy->bo.offset;
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} else {
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args.flags = NV_DMA_TARGET_VM | NV_DMA_ACCESS_RDWR;
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args.start += chan->ntfy->bo.offset;
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args.limit += chan->ntfy->bo.offset;
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}
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ret = nouveau_object_new(abi16->client, chan->chan->handle,
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ntfy->handle, 0x003d, &args,
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sizeof(args), &object);
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if (ret)
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goto done;
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done:
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if (ret)
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nouveau_abi16_ntfy_fini(chan, ntfy);
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return nouveau_abi16_put(abi16, ret);
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}
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int
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nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)
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{
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struct drm_nouveau_gpuobj_free *fini = data;
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struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
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struct nouveau_abi16_chan *chan, *temp;
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struct nouveau_abi16_ntfy *ntfy;
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int ret;
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if (unlikely(!abi16))
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return -ENOMEM;
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list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
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if (chan->chan->handle == (NVDRM_CHAN | fini->channel))
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break;
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chan = NULL;
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}
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if (!chan)
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return nouveau_abi16_put(abi16, -ENOENT);
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/* synchronize with the user channel and destroy the gpu object */
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nouveau_channel_idle(chan->chan);
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ret = nouveau_object_del(abi16->client, chan->chan->handle, fini->handle);
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if (ret)
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return nouveau_abi16_put(abi16, ret);
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/* cleanup extra state if this object was a notifier */
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list_for_each_entry(ntfy, &chan->notifiers, head) {
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if (ntfy->handle == fini->handle) {
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nouveau_mm_free(&chan->heap, &ntfy->node);
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list_del(&ntfy->head);
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break;
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}
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}
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return nouveau_abi16_put(abi16, 0);
|
|
}
|