From patchwork Sun Mar 5 22:10:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 13160240 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A924EC6FA8E for ; Sun, 5 Mar 2023 22:12:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3DFBE10E0A0; Sun, 5 Mar 2023 22:11:45 +0000 (UTC) Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3F1D710E058; Sun, 5 Mar 2023 22:11:37 +0000 (UTC) Received: from workpc.. (unknown [109.252.117.89]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: dmitry.osipenko) by madras.collabora.co.uk (Postfix) with ESMTPSA id 884846602124; Sun, 5 Mar 2023 22:11:34 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1678054296; bh=nRvK+a4SrZSQE5m68XGecVS9BQJoEYCbvEQ/J739IdU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QZKKD6tjNIjoQBJPoz/Mywwb8SiVxH2RMq54Nbm6NXATC75BBYGgujvCfUu6z/MKT SXyVS+pRFpnnyeM2tDKERzFO3PMXo3FNe2rs2XJgjmGdWZteocXzz7OGYvDNS/YN8M pYIlYWvA2igTowYxFEK1CFErakuG+p7ymFXaOvACrEBins61OEX+7GTY0TsRdS5lfV WVpUs5buBrZVGgH7mt8hsuYl7SGm3Vp4BWArzOm6WhlOdkwfYLg9c6+prwnE6sDzI6 eslwhKat4uJEZUaaTJ1bYnYAhqA6xr+eKbp8zDwbMC/XjTUf6qAInxzjzae0B+ssrF rZvYiYECZ1HTQ== From: Dmitry Osipenko To: David Airlie , Gerd Hoffmann , Gurchetan Singh , Chia-I Wu , Daniel Vetter , Daniel Almeida , Gustavo Padovan , Daniel Stone , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Sumit Semwal , =?utf-8?q?Christian_K=C3=B6nig?= , Qiang Yu , Steven Price , Alyssa Rosenzweig , Rob Herring Date: Mon, 6 Mar 2023 01:10:05 +0300 Message-Id: <20230305221011.1404672-6-dmitry.osipenko@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230305221011.1404672-1-dmitry.osipenko@collabora.com> References: <20230305221011.1404672-1-dmitry.osipenko@collabora.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v12 05/11] drm/shmem-helper: Factor out unpinning part from drm_gem_shmem_purge() X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: intel-gfx@lists.freedesktop.org, kernel@collabora.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Factor out pages unpinning code from drm_gem_shmem_purge() into new drm_gem_shmem_unpin_pages(). This prepares code for addition of memory shrinker support. The new common function will be used by shrinker for eviction of shmem pages. Signed-off-by: Dmitry Osipenko --- drivers/gpu/drm/drm_gem_shmem_helper.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c index e2324e857847..474918383b3e 100644 --- a/drivers/gpu/drm/drm_gem_shmem_helper.c +++ b/drivers/gpu/drm/drm_gem_shmem_helper.c @@ -486,25 +486,29 @@ int drm_gem_shmem_madvise(struct drm_gem_shmem_object *shmem, int madv) } EXPORT_SYMBOL(drm_gem_shmem_madvise); -void drm_gem_shmem_purge(struct drm_gem_shmem_object *shmem) +static void drm_gem_shmem_unpin_pages(struct drm_gem_shmem_object *shmem) { struct drm_gem_object *obj = &shmem->base; struct drm_device *dev = obj->dev; dma_resv_assert_held(shmem->base.resv); - drm_WARN_ON(obj->dev, !drm_gem_shmem_is_purgeable(shmem)); - dma_unmap_sgtable(dev->dev, shmem->sgt, DMA_BIDIRECTIONAL, 0); + drm_gem_shmem_release_pages(shmem); + drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping); + sg_free_table(shmem->sgt); kfree(shmem->sgt); shmem->sgt = NULL; +} - drm_gem_shmem_put_pages(shmem); +void drm_gem_shmem_purge(struct drm_gem_shmem_object *shmem) +{ + struct drm_gem_object *obj = &shmem->base; - shmem->madv = -1; + drm_WARN_ON(obj->dev, !drm_gem_shmem_is_purgeable(shmem)); - drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping); + drm_gem_shmem_unpin_pages(shmem); drm_gem_free_mmap_offset(obj); /* Our goal here is to return as much of the memory as @@ -515,6 +519,8 @@ void drm_gem_shmem_purge(struct drm_gem_shmem_object *shmem) shmem_truncate_range(file_inode(obj->filp), 0, (loff_t)-1); invalidate_mapping_pages(file_inode(obj->filp)->i_mapping, 0, (loff_t)-1); + + shmem->madv = -1; } EXPORT_SYMBOL(drm_gem_shmem_purge);