| 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: Thu, 5 Nov 2020 17:51:17 -0300
From: Ezequiel Garcia <ezequiel@...labora.com>
To: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: kernel@...labora.com, Jonas Karlman <jonas@...boo.se>,
Hans Verkuil <hverkuil@...all.nl>,
Nicolas Dufresne <nicolas.dufresne@...labora.com>,
Philipp Zabel <p.zabel@...gutronix.de>,
Maxime Ripard <mripard@...nel.org>,
Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
Jernej Skrabec <jernej.skrabec@...l.net>,
Ezequiel Garcia <ezequiel@...labora.com>
Subject: [PATCH v2 2/3] media: uapi: mpeg2: Remove unused slice size and offset
The MPEG2_SLICE_PARAMS control is designed to refer to a
single slice. Conversely, in each request the OUTPUT buffer
is expected to hold a single slice, so the offset
and size fields are not needed.
The start of the slice is aligned to the start of the buffer,
and the buffer's plane payload size is the slice size.
To reduce the API surface and avoid confusion drop these
fields from control.
Signed-off-by: Ezequiel Garcia <ezequiel@...labora.com>
---
Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst | 6 ------
drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c | 4 ++--
drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c | 4 ++--
drivers/staging/media/sunxi/cedrus/cedrus_mpeg2.c | 7 +++----
include/media/mpeg2-ctrls.h | 2 --
5 files changed, 7 insertions(+), 16 deletions(-)
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
index 7f5e331cda68..4c32b93f41a6 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
@@ -2218,12 +2218,6 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type -
:stub-columns: 0
:widths: 1 1 2
- * - __u32
- - ``bit_size``
- - Size (in bits) of the current slice data.
- * - __u32
- - ``data_bit_offset``
- - Offset (in bits) to the video data in the current slice data.
* - struct :c:type:`v4l2_mpeg2_sequence`
- ``sequence``
- Structure with MPEG-2 sequence metadata, merging relevant fields from
diff --git a/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c b/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
index 9fe442244eb9..b6086474d31f 100644
--- a/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
+++ b/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
@@ -206,7 +206,7 @@ void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx)
G1_REG_TOPFIELDFIRST_E(pic->flags & V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST);
vdpu_write_relaxed(vpu, reg, G1_SWREG(4));
- reg = G1_REG_STRM_START_BIT(slice_params->data_bit_offset) |
+ reg = G1_REG_STRM_START_BIT(0) |
G1_REG_QSCALE_TYPE(pic->flags & V4L2_MPEG2_PIC_FLAG_Q_SCALE_TYPE) |
G1_REG_CON_MV_E(pic->flags & V4L2_MPEG2_PIC_FLAG_CONCEALMENT_MV) |
G1_REG_INTRA_DC_PREC(pic->intra_dc_precision) |
@@ -215,7 +215,7 @@ void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx)
vdpu_write_relaxed(vpu, reg, G1_SWREG(5));
reg = G1_REG_INIT_QP(1) |
- G1_REG_STREAM_LEN(slice_params->bit_size >> 3);
+ G1_REG_STREAM_LEN(vb2_get_plane_payload(&src_buf->vb2_buf, 0));
vdpu_write_relaxed(vpu, reg, G1_SWREG(6));
reg = G1_REG_ALT_SCAN_FLAG_E(pic->flags & V4L2_MPEG2_PIC_FLAG_ALT_SCAN) |
diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c b/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
index 9fdbf942cb99..28eb77b0569b 100644
--- a/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
+++ b/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
@@ -179,7 +179,7 @@ void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx)
vdpu_write_relaxed(vpu, reg, VDPU_SWREG(50));
reg = VDPU_REG_INIT_QP(1) |
- VDPU_REG_STREAM_LEN(slice_params->bit_size >> 3);
+ VDPU_REG_STREAM_LEN(vb2_get_plane_payload(&src_buf->vb2_buf, 0));
vdpu_write_relaxed(vpu, reg, VDPU_SWREG(51));
reg = VDPU_REG_APF_THRESHOLD(8) |
@@ -222,7 +222,7 @@ void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx)
VDPU_REG_TOPFIELDFIRST_E(pic->flags & V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST);
vdpu_write_relaxed(vpu, reg, VDPU_SWREG(120));
- reg = VDPU_REG_STRM_START_BIT(slice_params->data_bit_offset) |
+ reg = VDPU_REG_STRM_START_BIT(0) |
VDPU_REG_QSCALE_TYPE(pic->flags & V4L2_MPEG2_PIC_FLAG_Q_SCALE_TYPE) |
VDPU_REG_CON_MV_E(pic->flags & V4L2_MPEG2_PIC_FLAG_CONCEALMENT_MV) |
VDPU_REG_INTRA_DC_PREC(pic->intra_dc_precision) |
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_mpeg2.c b/drivers/staging/media/sunxi/cedrus/cedrus_mpeg2.c
index 855536702bc1..6a99893cdc77 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_mpeg2.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_mpeg2.c
@@ -186,10 +186,9 @@ static void cedrus_mpeg2_setup(struct cedrus_ctx *ctx, struct cedrus_run *run)
/* Source offset and length in bits. */
- cedrus_write(dev, VE_DEC_MPEG_VLD_OFFSET,
- slice_params->data_bit_offset);
+ cedrus_write(dev, VE_DEC_MPEG_VLD_OFFSET, 0);
- reg = slice_params->bit_size - slice_params->data_bit_offset;
+ reg = vb2_get_plane_payload(&run->src->vb2_buf, 0) * 8;
cedrus_write(dev, VE_DEC_MPEG_VLD_LEN, reg);
/* Source beginning and end addresses. */
@@ -203,7 +202,7 @@ static void cedrus_mpeg2_setup(struct cedrus_ctx *ctx, struct cedrus_run *run)
cedrus_write(dev, VE_DEC_MPEG_VLD_ADDR, reg);
- reg = src_buf_addr + DIV_ROUND_UP(slice_params->bit_size, 8);
+ reg = src_buf_addr + vb2_get_plane_payload(&run->src->vb2_buf, 0);
cedrus_write(dev, VE_DEC_MPEG_VLD_END_ADDR, reg);
/* Macroblock address: start at the beginning. */
diff --git a/include/media/mpeg2-ctrls.h b/include/media/mpeg2-ctrls.h
index 6366035bfc54..5b0c916a44dd 100644
--- a/include/media/mpeg2-ctrls.h
+++ b/include/media/mpeg2-ctrls.h
@@ -68,8 +68,6 @@ struct v4l2_mpeg2_picture {
};
struct v4l2_ctrl_mpeg2_slice_params {
- __u32 bit_size;
- __u32 data_bit_offset;
__u64 backward_ref_ts;
__u64 forward_ref_ts;
--
2.27.0
Powered by blists - more mailing lists