Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Dmitry Osipenko <dmitry.osipenko@collabora.com>
To:     David Airlie <airlied@linux.ie>, Gerd Hoffmann <kraxel@redhat.com>,
        Gurchetan Singh <gurchetansingh@chromium.org>,
        Chia-I Wu <olvaffe@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
        Daniel Almeida <daniel.almeida@collabora.com>,
        Gert Wollny <gert.wollny@collabora.com>,
        Gustavo Padovan <gustavo.padovan@collabora.com>,
        Daniel Stone <daniel@fooishbar.org>,
        Tomeu Vizoso <tomeu.vizoso@collabora.com>,
        Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
        Maxime Ripard <mripard@kernel.org>,
        Thomas Zimmermann <tzimmermann@suse.de>,
        Rob Herring <robh@kernel.org>,
        Steven Price <steven.price@arm.com>,
        Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>,
        Rob Clark <robdclark@gmail.com>,
        Emil Velikov <emil.l.velikov@gmail.com>,
        Robin Murphy <robin.murphy@arm.com>,
        Qiang Yu <yuq825@gmail.com>,
        Sumit Semwal <sumit.semwal@linaro.org>,
        =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Cc:     dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
        virtualization@lists.linux-foundation.org,
        Dmitry Osipenko <digetx@gmail.com>,
        Dmitry Osipenko <dmitry.osipenko@collabora.com>
Subject: [PATCH v5 17/17] drm/shmem-helper: Remove drm_gem_shmem_purge_locked()
Date:   Sun, 24 Apr 2022 22:04:24 +0300
Message-Id: <20220424190424.540501-18-dmitry.osipenko@collabora.com>
In-Reply-To: <20220424190424.540501-1-dmitry.osipenko@collabora.com>
References: <20220424190424.540501-1-dmitry.osipenko@collabora.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Panfrost driver was the only user of the drm_gem_shmem_purge_locked()
helper. Panfrost driver was converted to use new generic memory shrinker
and the helper doesn't have users anymore, remove it.

Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
---
 drivers/gpu/drm/drm_gem_shmem_helper.c | 30 --------------------------
 include/drm/drm_gem_shmem_helper.h     |  1 -
 2 files changed, 31 deletions(-)

diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c
index 045921ad4795..ef7691c84fa8 100644
--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
@@ -899,36 +899,6 @@ static void drm_gem_shmem_unpin_pages_locked(struct drm_gem_shmem_object *shmem)
 	shmem->sgt = NULL;
 }
 
-void drm_gem_shmem_purge_locked(struct drm_gem_shmem_object *shmem)
-{
-	struct drm_gem_object *obj = &shmem->base;
-	struct drm_device *dev = obj->dev;
-
-	WARN_ON(!drm_gem_shmem_is_purgeable(shmem));
-
-	dma_unmap_sgtable(dev->dev, shmem->sgt, DMA_BIDIRECTIONAL, 0);
-	sg_free_table(shmem->sgt);
-	kfree(shmem->sgt);
-	shmem->sgt = NULL;
-
-	drm_gem_shmem_put_pages_locked(shmem);
-
-	shmem->madv = -1;
-
-	drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping);
-	drm_gem_free_mmap_offset(obj);
-
-	/* Our goal here is to return as much of the memory as
-	 * is possible back to the system as we are called from OOM.
-	 * To do this we must instruct the shmfs to drop all of its
-	 * backing pages, *now*.
-	 */
-	shmem_truncate_range(file_inode(obj->filp), 0, (loff_t)-1);
-
-	invalidate_mapping_pages(file_inode(obj->filp)->i_mapping, 0, (loff_t)-1);
-}
-EXPORT_SYMBOL(drm_gem_shmem_purge_locked);
-
 /**
  * drm_gem_shmem_dumb_create - Create a dumb shmem buffer object
  * @file: DRM file structure to create the dumb buffer for
diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h
index 972687bf9717..8d7053c36fa6 100644
--- a/include/drm/drm_gem_shmem_helper.h
+++ b/include/drm/drm_gem_shmem_helper.h
@@ -195,7 +195,6 @@ int drm_gem_shmem_set_purgeable(struct drm_gem_shmem_object *shmem);
 int drm_gem_shmem_set_purgeable_and_evictable(struct drm_gem_shmem_object *shmem);
 
 int drm_gem_shmem_swap_in_locked(struct drm_gem_shmem_object *shmem);
-void drm_gem_shmem_purge_locked(struct drm_gem_shmem_object *shmem);
 
 struct sg_table *drm_gem_shmem_get_sg_table(struct drm_gem_shmem_object *shmem);
 struct sg_table *drm_gem_shmem_get_pages_sgt(struct drm_gem_shmem_object *shmem);
-- 
2.35.1