| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Wed, 28 Sep 2022 22:15:52 +0300
From: Dmitry Osipenko <dmitry.osipenko@...labora.com>
To: David Airlie <airlied@...ux.ie>, Gerd Hoffmann <kraxel@...hat.com>,
Gurchetan Singh <gurchetansingh@...omium.org>,
Chia-I Wu <olvaffe@...il.com>, Daniel Vetter <daniel@...ll.ch>,
Daniel Almeida <daniel.almeida@...labora.com>,
Gert Wollny <gert.wollny@...labora.com>,
Gustavo Padovan <gustavo.padovan@...labora.com>,
Daniel Stone <daniel@...ishbar.org>,
Tomeu Vizoso <tomeu.vizoso@...labora.com>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
Rob Clark <robdclark@...il.com>,
Sumit Semwal <sumit.semwal@...aro.org>,
Christian König <christian.koenig@....com>,
"Pan, Xinhui" <Xinhui.Pan@....com>,
Thierry Reding <thierry.reding@...il.com>,
Tomasz Figa <tfiga@...omium.org>,
Marek Szyprowski <m.szyprowski@...sung.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Alex Deucher <alexander.deucher@....com>,
Jani Nikula <jani.nikula@...ux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@...el.com>,
Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
Thomas Hellström <thomas_os@...pmail.org>,
Qiang Yu <yuq825@...il.com>,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
Amol Maheshwari <amahesh@....qualcomm.com>,
Jason Gunthorpe <jgg@...pe.ca>,
Leon Romanovsky <leon@...nel.org>,
Juergen Gross <jgross@...e.com>,
Stefano Stabellini <sstabellini@...nel.org>,
Oleksandr Tyshchenko <oleksandr_tyshchenko@...m.com>,
Tomi Valkeinen <tomba@...nel.org>,
Russell King <linux@...linux.org.uk>,
Lucas Stach <l.stach@...gutronix.de>,
Christian Gmeiner <christian.gmeiner@...il.com>,
Ruhl Michael J <michael.j.ruhl@...el.com>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
Dmitry Osipenko <digetx@...il.com>,
linux-media@...r.kernel.org, linaro-mm-sig@...ts.linaro.org,
amd-gfx@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org,
kernel@...labora.com, virtualization@...ts.linux-foundation.org,
linux-rdma@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: [PATCH v6 13/21] media: videobuf2: Prepare to dynamic dma-buf locking specification
Prepare V4L2 memory allocators to the common dynamic dma-buf locking
convention by starting to use the unlocked versions of dma-buf API
functions.
Acked-by: Tomasz Figa <tfiga@...omium.org>
Acked-by: Christian König <christian.koenig@....com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@...labora.com>
---
drivers/media/common/videobuf2/videobuf2-dma-contig.c | 11 ++++++-----
drivers/media/common/videobuf2/videobuf2-dma-sg.c | 8 ++++----
drivers/media/common/videobuf2/videobuf2-vmalloc.c | 6 +++---
3 files changed, 13 insertions(+), 12 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-dma-contig.c b/drivers/media/common/videobuf2/videobuf2-dma-contig.c
index 678b359717c4..79f4d8301fbb 100644
--- a/drivers/media/common/videobuf2/videobuf2-dma-contig.c
+++ b/drivers/media/common/videobuf2/videobuf2-dma-contig.c
@@ -101,7 +101,7 @@ static void *vb2_dc_vaddr(struct vb2_buffer *vb, void *buf_priv)
if (buf->db_attach) {
struct iosys_map map;
- if (!dma_buf_vmap(buf->db_attach->dmabuf, &map))
+ if (!dma_buf_vmap_unlocked(buf->db_attach->dmabuf, &map))
buf->vaddr = map.vaddr;
return buf->vaddr;
@@ -711,7 +711,7 @@ static int vb2_dc_map_dmabuf(void *mem_priv)
}
/* get the associated scatterlist for this buffer */
- sgt = dma_buf_map_attachment(buf->db_attach, buf->dma_dir);
+ sgt = dma_buf_map_attachment_unlocked(buf->db_attach, buf->dma_dir);
if (IS_ERR(sgt)) {
pr_err("Error getting dmabuf scatterlist\n");
return -EINVAL;
@@ -722,7 +722,8 @@ static int vb2_dc_map_dmabuf(void *mem_priv)
if (contig_size < buf->size) {
pr_err("contiguous chunk is too small %lu/%lu\n",
contig_size, buf->size);
- dma_buf_unmap_attachment(buf->db_attach, sgt, buf->dma_dir);
+ dma_buf_unmap_attachment_unlocked(buf->db_attach, sgt,
+ buf->dma_dir);
return -EFAULT;
}
@@ -750,10 +751,10 @@ static void vb2_dc_unmap_dmabuf(void *mem_priv)
}
if (buf->vaddr) {
- dma_buf_vunmap(buf->db_attach->dmabuf, &map);
+ dma_buf_vunmap_unlocked(buf->db_attach->dmabuf, &map);
buf->vaddr = NULL;
}
- dma_buf_unmap_attachment(buf->db_attach, sgt, buf->dma_dir);
+ dma_buf_unmap_attachment_unlocked(buf->db_attach, sgt, buf->dma_dir);
buf->dma_addr = 0;
buf->dma_sgt = NULL;
diff --git a/drivers/media/common/videobuf2/videobuf2-dma-sg.c b/drivers/media/common/videobuf2/videobuf2-dma-sg.c
index fa69158a65b1..36ecdea8d707 100644
--- a/drivers/media/common/videobuf2/videobuf2-dma-sg.c
+++ b/drivers/media/common/videobuf2/videobuf2-dma-sg.c
@@ -309,7 +309,7 @@ static void *vb2_dma_sg_vaddr(struct vb2_buffer *vb, void *buf_priv)
if (!buf->vaddr) {
if (buf->db_attach) {
- ret = dma_buf_vmap(buf->db_attach->dmabuf, &map);
+ ret = dma_buf_vmap_unlocked(buf->db_attach->dmabuf, &map);
buf->vaddr = ret ? NULL : map.vaddr;
} else {
buf->vaddr = vm_map_ram(buf->pages, buf->num_pages, -1);
@@ -565,7 +565,7 @@ static int vb2_dma_sg_map_dmabuf(void *mem_priv)
}
/* get the associated scatterlist for this buffer */
- sgt = dma_buf_map_attachment(buf->db_attach, buf->dma_dir);
+ sgt = dma_buf_map_attachment_unlocked(buf->db_attach, buf->dma_dir);
if (IS_ERR(sgt)) {
pr_err("Error getting dmabuf scatterlist\n");
return -EINVAL;
@@ -594,10 +594,10 @@ static void vb2_dma_sg_unmap_dmabuf(void *mem_priv)
}
if (buf->vaddr) {
- dma_buf_vunmap(buf->db_attach->dmabuf, &map);
+ dma_buf_vunmap_unlocked(buf->db_attach->dmabuf, &map);
buf->vaddr = NULL;
}
- dma_buf_unmap_attachment(buf->db_attach, sgt, buf->dma_dir);
+ dma_buf_unmap_attachment_unlocked(buf->db_attach, sgt, buf->dma_dir);
buf->dma_sgt = NULL;
}
diff --git a/drivers/media/common/videobuf2/videobuf2-vmalloc.c b/drivers/media/common/videobuf2/videobuf2-vmalloc.c
index 948152f1596b..7831bf545874 100644
--- a/drivers/media/common/videobuf2/videobuf2-vmalloc.c
+++ b/drivers/media/common/videobuf2/videobuf2-vmalloc.c
@@ -376,7 +376,7 @@ static int vb2_vmalloc_map_dmabuf(void *mem_priv)
struct iosys_map map;
int ret;
- ret = dma_buf_vmap(buf->dbuf, &map);
+ ret = dma_buf_vmap_unlocked(buf->dbuf, &map);
if (ret)
return -EFAULT;
buf->vaddr = map.vaddr;
@@ -389,7 +389,7 @@ static void vb2_vmalloc_unmap_dmabuf(void *mem_priv)
struct vb2_vmalloc_buf *buf = mem_priv;
struct iosys_map map = IOSYS_MAP_INIT_VADDR(buf->vaddr);
- dma_buf_vunmap(buf->dbuf, &map);
+ dma_buf_vunmap_unlocked(buf->dbuf, &map);
buf->vaddr = NULL;
}
@@ -399,7 +399,7 @@ static void vb2_vmalloc_detach_dmabuf(void *mem_priv)
struct iosys_map map = IOSYS_MAP_INIT_VADDR(buf->vaddr);
if (buf->vaddr)
- dma_buf_vunmap(buf->dbuf, &map);
+ dma_buf_vunmap_unlocked(buf->dbuf, &map);
kfree(buf);
}
--
2.37.3
Powered by blists - more mailing lists