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drm/msm: Don't close VMAs on purge

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Previously we'd also tear down the VMA, making the address space
available again.  But with drm_gpuvm conversion, this would require
holding the locks of all VMs the GEM object is mapped in.  Which is
problematic for the shrinker.

Instead just let the VMA hang around until the GEM object is freed.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Tested-by: Antonino Maniscalco <antomani103@gmail.com>
Reviewed-by: Antonino Maniscalco <antomani103@gmail.com>
Patchwork: https://patchwork.freedesktop.org/patch/661472/
This commit is contained in:
Rob Clark 2025-06-29 13:12:53 -07:00 committed by Rob Clark
parent b5e7a2f1a3
commit 001ddc857c
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/msm/msm_gem.c
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@ -755,7 +755,7 @@ void msm_gem_purge(struct drm_gem_object *obj)
GEM_WARN_ON(!is_purgeable(msm_obj));
/* Get rid of any iommu mapping(s): */
put_iova_spaces(obj, true);
put_iova_spaces(obj, false);
msm_gem_vunmap(obj);