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From: Dmitry Osipenko <dmitry.osipenko@collabora.com>
To: "David Airlie" <airlied@gmail.com>,
	"Gerd Hoffmann" <kraxel@redhat.com>,
	"Gurchetan Singh" <gurchetansingh@chromium.org>,
	"Chia-I Wu" <olvaffe@gmail.com>,
	"Daniel Vetter" <daniel@ffwll.ch>,
	"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
	"Maxime Ripard" <mripard@kernel.org>,
	"Thomas Zimmermann" <tzimmermann@suse.de>,
	"Christian König" <christian.koenig@amd.com>,
	"Qiang Yu" <yuq825@gmail.com>,
	"Steven Price" <steven.price@arm.com>,
	"Boris Brezillon" <boris.brezillon@collabora.com>,
	"Emma Anholt" <emma@anholt.net>, "Melissa Wen" <mwen@igalia.com>
Cc: kernel@collabora.com, linux-kernel@vger.kernel.org,
	dri-devel@lists.freedesktop.org,
	virtualization@lists.linux-foundation.org
Subject: [PATCH v16 16/20] drm/shmem-helper: Export drm_gem_shmem_get_pages_sgt_locked()
Date: Sun,  3 Sep 2023 20:07:32 +0300	[thread overview]
Message-ID: <20230903170736.513347-17-dmitry.osipenko@collabora.com> (raw)
In-Reply-To: <20230903170736.513347-1-dmitry.osipenko@collabora.com>

Export drm_gem_shmem_get_pages_sgt_locked() that will be used by virtio-gpu
shrinker during GEM swap-in operation done under the held reservation lock.

Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
---
 drivers/gpu/drm/drm_gem_shmem_helper.c | 3 ++-
 include/drm/drm_gem_shmem_helper.h     | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c
index a0a6c7e505c8..afd9b97ba593 100644
--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
@@ -874,7 +874,7 @@ struct sg_table *drm_gem_shmem_get_sg_table(struct drm_gem_shmem_object *shmem)
 }
 EXPORT_SYMBOL_GPL(drm_gem_shmem_get_sg_table);
 
-static struct sg_table *drm_gem_shmem_get_pages_sgt_locked(struct drm_gem_shmem_object *shmem)
+struct sg_table *drm_gem_shmem_get_pages_sgt_locked(struct drm_gem_shmem_object *shmem)
 {
 	struct drm_gem_object *obj = &shmem->base;
 	int ret;
@@ -919,6 +919,7 @@ static struct sg_table *drm_gem_shmem_get_pages_sgt_locked(struct drm_gem_shmem_
 	drm_gem_shmem_put_pages_locked(shmem);
 	return ERR_PTR(ret);
 }
+EXPORT_SYMBOL_GPL(drm_gem_shmem_get_pages_sgt_locked);
 
 /**
  * drm_gem_shmem_get_pages_sgt - Pin pages, dma map them, and return a
diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h
index 65c99da25048..2d7debc23ac1 100644
--- a/include/drm/drm_gem_shmem_helper.h
+++ b/include/drm/drm_gem_shmem_helper.h
@@ -161,6 +161,7 @@ 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);
+struct sg_table *drm_gem_shmem_get_pages_sgt_locked(struct drm_gem_shmem_object *shmem);
 
 void drm_gem_shmem_print_info(const struct drm_gem_shmem_object *shmem,
 			      struct drm_printer *p, unsigned int indent);
-- 
2.41.0


  parent reply	other threads:[~2023-09-03 17:09 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-03 17:07 [PATCH v16 00/20] Add generic memory shrinker to VirtIO-GPU and Panfrost DRM drivers Dmitry Osipenko
2023-09-03 17:07 ` [PATCH v16 01/20] drm/shmem-helper: Fix UAF in error path when freeing SGT of imported GEM Dmitry Osipenko
2023-09-03 17:07 ` [PATCH v16 02/20] drm/shmem-helper: Use flag for tracking page count bumped by get_pages_sgt() Dmitry Osipenko
2023-09-05  7:40   ` Boris Brezillon
2023-09-11 23:41     ` Dmitry Osipenko
2023-09-12  7:07       ` Boris Brezillon
2023-09-03 17:07 ` [PATCH v16 03/20] drm/gem: Change locked/unlocked postfix of drm_gem_v/unmap() function names Dmitry Osipenko
2023-09-03 17:07 ` [PATCH v16 04/20] drm/gem: Add _locked postfix to functions that have unlocked counterpart Dmitry Osipenko
2023-09-03 17:07 ` [PATCH v16 05/20] drm/v3d: Replace open-coded drm_gem_shmem_free() with drm_gem_object_put() Dmitry Osipenko
2023-09-05  7:33   ` Boris Brezillon
2023-09-03 17:07 ` [PATCH v16 06/20] drm/virtio: Replace " Dmitry Osipenko
2023-09-05  7:20   ` Boris Brezillon
2023-09-11 23:32     ` Dmitry Osipenko
2023-09-03 17:07 ` [PATCH v16 07/20] drm/shmem-helper: Make all exported symbols GPL Dmitry Osipenko
2023-09-05  7:05   ` Boris Brezillon
2023-09-03 17:07 ` [PATCH v16 08/20] drm/shmem-helper: Refactor locked/unlocked functions Dmitry Osipenko
2023-09-03 17:07 ` [PATCH v16 09/20] drm/shmem-helper: Remove obsoleted is_iomem test Dmitry Osipenko
2023-09-05  6:46   ` Boris Brezillon
2023-09-13  0:06     ` Dmitry Osipenko
2023-09-03 17:07 ` [PATCH v16 10/20] drm/shmem-helper: Add and use pages_pin_count Dmitry Osipenko
2023-09-05  6:39   ` Boris Brezillon
2023-09-03 17:07 ` [PATCH v16 11/20] drm/shmem-helper: Use refcount_t for pages_use_count Dmitry Osipenko
2023-09-05  6:56   ` Boris Brezillon
2023-09-03 17:07 ` [PATCH v16 12/20] drm/shmem-helper: Add and use lockless drm_gem_shmem_get_pages() Dmitry Osipenko
2023-09-05  6:58   ` Boris Brezillon
2023-09-03 17:07 ` [PATCH v16 13/20] drm/shmem-helper: Switch drm_gem_shmem_vmap/vunmap to use pin/unpin Dmitry Osipenko
2023-09-05  7:00   ` Boris Brezillon
2023-09-03 17:07 ` [PATCH v16 14/20] drm/shmem-helper: Use refcount_t for vmap_use_count Dmitry Osipenko
2023-09-05  7:05   ` Boris Brezillon
2023-09-03 17:07 ` [PATCH v16 15/20] drm/shmem-helper: Add memory shrinker Dmitry Osipenko
2023-09-05  8:03   ` Boris Brezillon
2023-09-13  0:56     ` Dmitry Osipenko
2023-09-13  7:48       ` Boris Brezillon
2023-09-14  4:02         ` Dmitry Osipenko
2023-09-14  7:36           ` Boris Brezillon
2023-09-14  7:50             ` Dmitry Osipenko
2023-09-14  8:27               ` Boris Brezillon
2023-09-14 11:36                 ` Dmitry Osipenko
2023-09-14 11:58                   ` Boris Brezillon
2023-09-14 13:01                     ` Dmitry Osipenko
2023-09-14 13:27                       ` Boris Brezillon
2023-09-14 13:30                         ` Boris Brezillon
2023-09-14 13:58                         ` Dmitry Osipenko
2023-09-07 10:03   ` Dan Carpenter
2023-09-07 10:03     ` Dan Carpenter
2023-09-11 23:44     ` Dmitry Osipenko
2023-09-11 23:44       ` Dmitry Osipenko
2023-09-03 17:07 ` Dmitry Osipenko [this message]
2023-09-03 17:07 ` [PATCH v16 17/20] drm/virtio: Pin display framebuffer BO Dmitry Osipenko
2023-09-03 17:07 ` [PATCH v16 18/20] drm/virtio: Attach shmem BOs dynamically Dmitry Osipenko
2023-09-03 17:07 ` [PATCH v16 19/20] drm/virtio: Support memory shrinking Dmitry Osipenko
2023-09-03 17:07 ` [PATCH v16 20/20] drm/panfrost: Switch to generic memory shrinker Dmitry Osipenko
2023-09-04 13:20   ` Steven Price
2023-09-05  8:08     ` Boris Brezillon
2023-09-06 10:55       ` Steven Price

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