diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/kvmgt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/kvmgt.c | 40 |
1 files changed, 23 insertions, 17 deletions
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index 343d79c1cb7e..3259a1fa69e1 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -1564,27 +1564,10 @@ vgpu_id_show(struct device *dev, struct device_attribute *attr, return sprintf(buf, "\n"); } -static ssize_t -hw_id_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct mdev_device *mdev = mdev_from_dev(dev); - - if (mdev) { - struct intel_vgpu *vgpu = (struct intel_vgpu *) - mdev_get_drvdata(mdev); - return sprintf(buf, "%u\n", - vgpu->submission.shadow[0]->gem_context->hw_id); - } - return sprintf(buf, "\n"); -} - static DEVICE_ATTR_RO(vgpu_id); -static DEVICE_ATTR_RO(hw_id); static struct attribute *intel_vgpu_attrs[] = { &dev_attr_vgpu_id.attr, - &dev_attr_hw_id.attr, NULL }; @@ -1933,6 +1916,28 @@ err_unlock: return ret; } +static int kvmgt_dma_pin_guest_page(unsigned long handle, dma_addr_t dma_addr) +{ + struct kvmgt_guest_info *info; + struct gvt_dma *entry; + int ret = 0; + + if (!handle_valid(handle)) + return -ENODEV; + + info = (struct kvmgt_guest_info *)handle; + + mutex_lock(&info->vgpu->vdev.cache_lock); + entry = __gvt_cache_find_dma_addr(info->vgpu, dma_addr); + if (entry) + kref_get(&entry->ref); + else + ret = -ENOMEM; + mutex_unlock(&info->vgpu->vdev.cache_lock); + + return ret; +} + static void __gvt_dma_release(struct kref *ref) { struct gvt_dma *entry = container_of(ref, typeof(*entry), ref); @@ -2044,6 +2049,7 @@ static struct intel_gvt_mpt kvmgt_mpt = { .gfn_to_mfn = kvmgt_gfn_to_pfn, .dma_map_guest_page = kvmgt_dma_map_guest_page, .dma_unmap_guest_page = kvmgt_dma_unmap_guest_page, + .dma_pin_guest_page = kvmgt_dma_pin_guest_page, .set_opregion = kvmgt_set_opregion, .set_edid = kvmgt_set_edid, .get_vfio_device = kvmgt_get_vfio_device, |
