From nobody Mon Feb 9 16:16:57 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D8A0748A2AE; Wed, 21 Jan 2026 12:59:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769000380; cv=none; b=FwUSOGfwKKohVq64KVFmOGE6Q8RSr4oCbqSXEewuKBDeTJk6X85xbEBnNTvcq7YE/ly5yQ1HHpW7oBUiyUrN2Dfiq3fYCBkqSZHRHMIIyf+qcCWyWIOJzg+pnWhiBsvoDw+lcUO3vG8hVhZCvwm3iVMV4apAAIIIJP3Pbhu3sOE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769000380; c=relaxed/simple; bh=6Ho+uRDyXSgxTDE+1RTrMPsGvWWn+f2uKPQhY0bRRoU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=N+TJWbIfAXCwxUNOpiao9lF4rnjkZpcMShmdfTvrjKjEu+bE7qAKlgVe3lrUpvw9AXnGZ+bzrPCTZAyvyeNYht9Ioyv8q2rZK/k4gDzc1MavBRywJzETQwi/CzhSjsa221QLGLzTLJkB2Bks7/2bd3q4hr+uU2oovCqEMfeLiz4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=uP7N2HLH; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="uP7N2HLH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C613BC116D0; Wed, 21 Jan 2026 12:59:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1769000379; bh=6Ho+uRDyXSgxTDE+1RTrMPsGvWWn+f2uKPQhY0bRRoU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uP7N2HLH9HGFbRCEtRnar6HBTQ5giBQXH3s7VAilbpNceFpmAJHTlmemRXNzJmgEv 1MvZGTnhXYQIUfLHwj8Ul71/7FAgNrnqfcK92TgxTe0aWuEebGcfUKLxd9rVsggsHv sPCURz+nfBhDAXHSDXjh1fJYQMd4j7/aUUgNwVexcs2EBhsLR9URsuVtQZEtogFJ42 5ckbhCNU+RU/JEQJZF2xVcs7nqt9bKjA6CRweQldIiVQlUpl4m/10COBwBqAYYxUpx PWfpraQoJmSx1WluigzBSHVU+q5bvTeX2uxZs+vJ+Bipj/he54FrSfF6Gq8KudIbZy M6YFuOJtKiYeQ== From: Leon Romanovsky To: Sumit Semwal , =?utf-8?q?Christian_K=C3=B6nig?= , Alex Deucher , David Airlie , Simona Vetter , Gerd Hoffmann , Dmitry Osipenko , Gurchetan Singh , Chia-I Wu , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Lucas De Marchi , =?utf-8?q?Thomas_Hellstr=C3=B6m?= , Rodrigo Vivi , Jason Gunthorpe , Leon Romanovsky , Kevin Tian , Joerg Roedel , Will Deacon , Robin Murphy , Felix Kuehling , Alex Williamson , Ankit Agrawal , Vivek Kasireddy Cc: linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org, virtualization@lists.linux.dev, intel-xe@lists.freedesktop.org, linux-rdma@vger.kernel.org, iommu@lists.linux.dev, kvm@vger.kernel.org Subject: [PATCH v4 2/8] dma-buf: Rename dma_buf_move_notify() to dma_buf_invalidate_mappings() Date: Wed, 21 Jan 2026 14:59:10 +0200 Message-ID: <20260121-dmabuf-revoke-v4-2-d311cbc8633d@nvidia.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260121-dmabuf-revoke-v4-0-d311cbc8633d@nvidia.com> References: <20260121-dmabuf-revoke-v4-0-d311cbc8633d@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Mailer: b4 0.15-dev-a6db3 Content-Transfer-Encoding: quoted-printable From: Leon Romanovsky Along with renaming the .move_notify() callback, rename the corresponding dma-buf core function. This makes the expected behavior clear to exporters calling this function. Signed-off-by: Leon Romanovsky --- drivers/dma-buf/dma-buf.c | 8 ++++---- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 2 +- drivers/gpu/drm/xe/xe_bo.c | 2 +- drivers/iommu/iommufd/selftest.c | 2 +- drivers/vfio/pci/vfio_pci_dmabuf.c | 4 ++-- include/linux/dma-buf.h | 2 +- 6 files changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c index 59cc647bf40e..e12db540c413 100644 --- a/drivers/dma-buf/dma-buf.c +++ b/drivers/dma-buf/dma-buf.c @@ -912,7 +912,7 @@ dma_buf_pin_on_map(struct dma_buf_attachment *attach) * 3. Exporters must hold the dma-buf reservation lock when calling these * functions: * - * - dma_buf_move_notify() + * - dma_buf_invalidate_mappings() */ =20 /** @@ -1247,14 +1247,14 @@ void dma_buf_unmap_attachment_unlocked(struct dma_b= uf_attachment *attach, EXPORT_SYMBOL_NS_GPL(dma_buf_unmap_attachment_unlocked, "DMA_BUF"); =20 /** - * dma_buf_move_notify - notify attachments that DMA-buf is moving + * dma_buf_invalidate_mappings - notify attachments that DMA-buf is moving * * @dmabuf: [in] buffer which is moving * * Informs all attachments that they need to destroy and recreate all their * mappings. */ -void dma_buf_move_notify(struct dma_buf *dmabuf) +void dma_buf_invalidate_mappings(struct dma_buf *dmabuf) { struct dma_buf_attachment *attach; =20 @@ -1264,7 +1264,7 @@ void dma_buf_move_notify(struct dma_buf *dmabuf) if (attach->importer_ops) attach->importer_ops->invalidate_mappings(attach); } -EXPORT_SYMBOL_NS_GPL(dma_buf_move_notify, "DMA_BUF"); +EXPORT_SYMBOL_NS_GPL(dma_buf_invalidate_mappings, "DMA_BUF"); =20 /** * DOC: cpu access diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/a= md/amdgpu/amdgpu_object.c index e08f58de4b17..f73dc99d1887 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -1270,7 +1270,7 @@ void amdgpu_bo_move_notify(struct ttm_buffer_object *= bo, =20 if (abo->tbo.base.dma_buf && !drm_gem_is_imported(&abo->tbo.base) && old_mem && old_mem->mem_type !=3D TTM_PL_SYSTEM) - dma_buf_move_notify(abo->tbo.base.dma_buf); + dma_buf_invalidate_mappings(abo->tbo.base.dma_buf); =20 /* move_notify is called before move happens */ trace_amdgpu_bo_move(abo, new_mem ? new_mem->mem_type : -1, diff --git a/drivers/gpu/drm/xe/xe_bo.c b/drivers/gpu/drm/xe/xe_bo.c index bf4ee976b680..7d02cd9a8501 100644 --- a/drivers/gpu/drm/xe/xe_bo.c +++ b/drivers/gpu/drm/xe/xe_bo.c @@ -819,7 +819,7 @@ static int xe_bo_move_notify(struct xe_bo *bo, =20 /* Don't call move_notify() for imported dma-bufs. */ if (ttm_bo->base.dma_buf && !ttm_bo->base.import_attach) - dma_buf_move_notify(ttm_bo->base.dma_buf); + dma_buf_invalidate_mappings(ttm_bo->base.dma_buf); =20 /* * TTM has already nuked the mmap for us (see ttm_bo_unmap_virtual), diff --git a/drivers/iommu/iommufd/selftest.c b/drivers/iommu/iommufd/selft= est.c index 550ff36dec3a..f60cbd5328cc 100644 --- a/drivers/iommu/iommufd/selftest.c +++ b/drivers/iommu/iommufd/selftest.c @@ -2081,7 +2081,7 @@ static int iommufd_test_dmabuf_revoke(struct iommufd_= ucmd *ucmd, int fd, priv =3D dmabuf->priv; dma_resv_lock(dmabuf->resv, NULL); priv->revoked =3D revoked; - dma_buf_move_notify(dmabuf); + dma_buf_invalidate_mappings(dmabuf); dma_resv_unlock(dmabuf->resv); =20 err_put: diff --git a/drivers/vfio/pci/vfio_pci_dmabuf.c b/drivers/vfio/pci/vfio_pci= _dmabuf.c index d4d0f7d08c53..362e3d149817 100644 --- a/drivers/vfio/pci/vfio_pci_dmabuf.c +++ b/drivers/vfio/pci/vfio_pci_dmabuf.c @@ -320,7 +320,7 @@ void vfio_pci_dma_buf_move(struct vfio_pci_core_device = *vdev, bool revoked) if (priv->revoked !=3D revoked) { dma_resv_lock(priv->dmabuf->resv, NULL); priv->revoked =3D revoked; - dma_buf_move_notify(priv->dmabuf); + dma_buf_invalidate_mappings(priv->dmabuf); dma_resv_unlock(priv->dmabuf->resv); } fput(priv->dmabuf->file); @@ -341,7 +341,7 @@ void vfio_pci_dma_buf_cleanup(struct vfio_pci_core_devi= ce *vdev) list_del_init(&priv->dmabufs_elm); priv->vdev =3D NULL; priv->revoked =3D true; - dma_buf_move_notify(priv->dmabuf); + dma_buf_invalidate_mappings(priv->dmabuf); dma_resv_unlock(priv->dmabuf->resv); vfio_device_put_registration(&vdev->vdev); fput(priv->dmabuf->file); diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h index 1b397635c793..d5c3ce2b3aa4 100644 --- a/include/linux/dma-buf.h +++ b/include/linux/dma-buf.h @@ -600,7 +600,7 @@ struct sg_table *dma_buf_map_attachment(struct dma_buf_= attachment *, enum dma_data_direction); void dma_buf_unmap_attachment(struct dma_buf_attachment *, struct sg_table= *, enum dma_data_direction); -void dma_buf_move_notify(struct dma_buf *dma_buf); +void dma_buf_invalidate_mappings(struct dma_buf *dma_buf); int dma_buf_begin_cpu_access(struct dma_buf *dma_buf, enum dma_data_direction dir); int dma_buf_end_cpu_access(struct dma_buf *dma_buf, --=20 2.52.0