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..., on arm64 it happens if IOMMU domain type for a device is equal to IOMMU_DOMAIN_DMA. The proposed solution adds a new option to the base device driver structure that allows device drivers to explicitly convey to the drivers core that the implicit IOMMU backing for devices must not happen. Dmitry Osipenko (6): driver core: Add option for disabling of backing devices DMA with IOMMU of/device: Don't back devices DMA with IOMMU if that's undesired by driver drm/tegra: Avoid implicit DMA backing with IOMMU gpu: host1x: Avoid implicit DMA backing with IOMMU drm/nouveau: tegra: U...

On Mon, May 1, 2023 at 8:38?AM Dmitry Osipenko < dmitry.osipenko at collabora.com> wrote: > On 4/16/23 14:52, Dmitry Osipenko wrote: > > We have multiple Vulkan context types that are awaiting for the addition > > of the sync object DRM UAPI support to the VirtIO-GPU kernel driver: > > > > 1. Venus context &gt...

Hi Am 27.02.23 um 19:15 schrieb Rob Clark: > On Mon, Feb 27, 2023 at 9:57 AM Dmitry Osipenko > <dmitry.osipenko at collabora.com> wrote: >> >> On 2/27/23 20:38, Rob Clark wrote: >> ... >>> + if (IS_ENABLED(CONFIG_DRM_VIRTIO_GPU_KMS)) { >>> + /* get display info */ >>> + virtio_cread_le(vgdev->vdev, struct...

On Friday, 27 July 2018 20:03:26 MSK Jordan Crouse wrote: > On Fri, Jul 27, 2018 at 05:02:37PM +0100, Robin Murphy wrote: > > On 27/07/18 15:10, Dmitry Osipenko wrote: > > >On Friday, 27 July 2018 12:03:28 MSK Will Deacon wrote: > > >>On Fri, Jul 27, 2018 at 10:25:13AM +0200, Joerg Roedel wrote: > > >>>On Fri, Jul 27, 2018 at 02:16:18AM +0300, Dmitry Osipenko wrote: > > >>>>The proposed solution adds a...

On Friday, 3 August 2018 18:43:41 MSK Robin Murphy wrote: > On 02/08/18 19:24, Dmitry Osipenko wrote: > > On Friday, 27 July 2018 20:16:53 MSK Dmitry Osipenko wrote: > >> On Friday, 27 July 2018 20:03:26 MSK Jordan Crouse wrote: > >>> On Fri, Jul 27, 2018 at 05:02:37PM +0100, Robin Murphy wrote: > >>>> On 27/07/18 15:10, Dmitry Osipenko wrote: > &...

On Mon, Feb 27, 2023 at 9:57 AM Dmitry Osipenko <dmitry.osipenko at collabora.com> wrote: > > On 2/27/23 20:38, Rob Clark wrote: > ... > > + if (IS_ENABLED(CONFIG_DRM_VIRTIO_GPU_KMS)) { > > + /* get display info */ > > + virtio_cread_le(vgdev->vdev, struct virtio_gpu_config, > &g...

On Friday, 27 July 2018 20:16:53 MSK Dmitry Osipenko wrote: > On Friday, 27 July 2018 20:03:26 MSK Jordan Crouse wrote: > > On Fri, Jul 27, 2018 at 05:02:37PM +0100, Robin Murphy wrote: > > > On 27/07/18 15:10, Dmitry Osipenko wrote: > > > >On Friday, 27 July 2018 12:03:28 MSK Will Deacon wrote: > > > >>On...

On Wed, May 3, 2023 at 10:07?AM Gurchetan Singh <gurchetansingh at chromium.org> wrote: > > > > On Mon, May 1, 2023 at 8:38?AM Dmitry Osipenko <dmitry.osipenko at collabora.com> wrote: >> >> On 4/16/23 14:52, Dmitry Osipenko wrote: >> > We have multiple Vulkan context types that are awaiting for the addition >> > of the sync object DRM UAPI support to the VirtIO-GPU kernel driver: >> > >>...

On Fri, Jul 27, 2018 at 10:25:13AM +0200, Joerg Roedel wrote: > On Fri, Jul 27, 2018 at 02:16:18AM +0300, Dmitry Osipenko wrote: > > The proposed solution adds a new option to the base device driver > > structure that allows device drivers to explicitly convey to the drivers > > core that the implicit IOMMU backing for devices must not happen. > > Why is IOMMU mapping a problem for the Tegra G...

On 27/07/18 15:10, Dmitry Osipenko wrote: > On Friday, 27 July 2018 12:03:28 MSK Will Deacon wrote: >> On Fri, Jul 27, 2018 at 10:25:13AM +0200, Joerg Roedel wrote: >>> On Fri, Jul 27, 2018 at 02:16:18AM +0300, Dmitry Osipenko wrote: >>>> The proposed solution adds a new option to the base device driver...

I forgot this change. Am 08.01.23 um 22:04 schrieb Dmitry Osipenko: > Add unlocked variants of drm_gem_un/pin() functions. These new helpers > will take care of GEM dma-reservation locking for DRM drivers. > > VirtIO-GPU driver will use these helpers to pin shmem framebuffers, > preventing them from eviction during scanout. > > Signed-off-by...

On Wed, Mar 01, 2023 at 03:37:24AM +0300, Dmitry Osipenko wrote: > On 2/28/23 18:54, Rob Clark wrote: > > From: Rob Clark <robdclark at chromium.org> > > > > Add a build option to disable modesetting support. This is useful in > > cases where the guest only needs to use the GPU in a headless mode, or > > (such as i...

On Mon, Mar 06, 2023 at 05:32:34PM +0300, Dmitry Osipenko wrote: > VirtIO-GPU got a new config option for disabling KMS. There were two > problems left unnoticed during review when the new option was added: > > 1. The IS_ENABLED(CONFIG_DRM_VIRTIO_GPU_KMS) check in the code was > inverted, hence KMS was disabled when it should be enabled an...

Am 25.03.23 um 15:58 schrieb Dmitry Osipenko: > On 3/15/23 16:46, Dmitry Osipenko wrote: >> On 3/14/23 05:26, Dmitry Osipenko wrote: >>> @@ -633,7 +605,10 @@ int drm_gem_shmem_mmap(struct drm_gem_shmem_object *shmem, struct vm_area_struct >>> return ret; >>> } >>> >>> + dma_resv_...

Am 27.08.23 um 19:54 schrieb Dmitry Osipenko: > Add simple kref_put_dma_resv() helper that wraps around kref_put_ww_mutex() > for drivers that needs to lock dma-resv on kref_put(). > > It's not possible to easily add this helper to kref.h because of the > headers inclusion dependency, hence add it to dma-resv.h. I was neve...

On 15/08/18 20:56, Dmitry Osipenko wrote: > On Friday, 3 August 2018 18:43:41 MSK Robin Murphy wrote: >> On 02/08/18 19:24, Dmitry Osipenko wrote: >>> On Friday, 27 July 2018 20:16:53 MSK Dmitry Osipenko wrote: >>>> On Friday, 27 July 2018 20:03:26 MSK Jordan Crouse wrote: >>>>> On Fri, J...

On 02/08/18 19:24, Dmitry Osipenko wrote: > On Friday, 27 July 2018 20:16:53 MSK Dmitry Osipenko wrote: >> On Friday, 27 July 2018 20:03:26 MSK Jordan Crouse wrote: >>> On Fri, Jul 27, 2018 at 05:02:37PM +0100, Robin Murphy wrote: >>>> On 27/07/18 15:10, Dmitry Osipenko wrote: >>>>> On Fr...

On Sun, Mar 19, 2023 at 9:11?AM Dmitry Osipenko <dmitry.osipenko at collabora.com> wrote: > > Move virtio_gpu_execbuffer_ioctl() into separate virtgpu_submit.c file > and refactor the code along the way to ease addition of new features to > the ioctl. > > Signed-off-by: Dmitry Osipenko <dmitry.osipenko at collabora.com...

On Fri, Jul 27, 2018 at 05:10:22PM +0300, Dmitry Osipenko wrote: > I'm not sure what you guys are meaning by the "firmware", could you elaborate > please? Do you mean the Open Firmware and hence the devicetree or what? Yes, I think the best way to request this is using a device-tree property. Letting the device driver request it is d...

On Thu, Jan 26, 2023 at 03:24:30PM +0300, Dmitry Osipenko wrote: > On 1/26/23 15:17, Gerd Hoffmann wrote: > > On Mon, Jan 09, 2023 at 12:04:40AM +0300, Dmitry Osipenko wrote: > >> its own refcounting of vmaps, use it instead of drm-shmem > >> counting. This change prepares drm-shmem for addition of memory shrinker > >>...