✓ CI.checkpatch: success for drm/xe/dma_buf: stop relying on placement in unmap

[Patchwork]

== Series Details ==

Series: drm/xe/dma_buf: stop relying on placement in unmap
URL   : https://patchwork.freedesktop.org/series/147218/
State : success

== Summary ==

+ KERNEL=/kernel
+ git clone https://gitlab.freedesktop.org/drm/maintainer-tools mt
Cloning into 'mt'...
warning: redirecting to https://gitlab.freedesktop.org/drm/maintainer-tools.git/
+ git -C mt rev-list -n1 origin/master
99e5a866b5e13f134e606a3e29d9508d97826fb3
+ cd /kernel
+ git config --global --add safe.directory /kernel
+ git log -n1
commit 961cc8f52845d4c80d0c44ef3101e18a0f4a5e2d
Author: Matthew Auld <matthew.auld at intel.com>
Date:   Thu Apr 3 15:07:36 2025 +0100

    drm/xe/dma_buf: stop relying on placement in unmap
    
    The is_vram() is checking the current placement, however if we consider
    exported VRAM with dynamic dma-buf, it looks possible for the xe driver
    to async evict the memory, notifying the importer, however importer does
    not have to call unmap_attachment() immediately, but rather just as
    "soon as possible", like when the dma-resv idles. Following from this we
    would then pipeline the move, attaching the fence to the manager, and
    then update the current placement. But when the unmap_attachment() runs
    at some later point we might see that is_vram() is now false, and take
    the complete wrong path when dma-unmapping the sg, leading to
    explosions.
    
    To fix this rather make a note in the attachment if the sg was
    originally mapping vram or tt pages.
    
    Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/4563
    Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
    Signed-off-by: Matthew Auld <matthew.auld at intel.com>
    Cc: Thomas Hellström <thomas.hellstrom at linux.intel.com>
    Cc: Matthew Brost <matthew.brost at intel.com>
    Cc: <stable at vger.kernel.org> # v6.8+
+ /mt/dim checkpatch bc18da45d48d337b92a7ff9546ba61da32b3b586 drm-intel
961cc8f52845 drm/xe/dma_buf: stop relying on placement in unmap