From: Benjamin Gaignard <benjamin.gaignard@collabora.com>
To: mchehab@kernel.org, hverkuil@xs4all.nl,
ezequiel@vanguardiasur.com.ar, p.zabel@pengutronix.de,
gregkh@linuxfoundation.org, mripard@kernel.org,
paul.kocialkowski@bootlin.com, wens@csie.org,
jernej.skrabec@gmail.com, samuel@sholland.org,
nicolas.dufresne@collabora.com, andrzej.p@collabora.com
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-rockchip@lists.infradead.org,
linux-staging@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-sunxi@lists.linux.dev, kernel@collabora.com,
Benjamin Gaignard <benjamin.gaignard@collabora.com>
Subject: [PATCH v6 15/17] media: uapi: HEVC: fix padding in v4l2 control structures
Date: Fri, 27 May 2022 16:31:32 +0200 [thread overview]
Message-ID: <20220527143134.3360174-16-benjamin.gaignard@collabora.com> (raw)
In-Reply-To: <20220527143134.3360174-1-benjamin.gaignard@collabora.com>
Fix padding where needed to remove holes and stay align on cache boundaries
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/v4l/ext-ctrls-codec.rst | 6 +++---
drivers/media/v4l2-core/v4l2-ctrls-core.c | 9 ---------
include/media/hevc-ctrls.h | 19 ++++++++++++-------
3 files changed, 15 insertions(+), 19 deletions(-)
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
index 05228e280f66..48a8825a001b 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
@@ -3509,9 +3509,6 @@ enum v4l2_mpeg_video_hevc_size_of_length_field -
* - __u8
- ``num_active_dpb_entries``
- The number of entries in ``dpb``.
- * - struct :c:type:`v4l2_hevc_dpb_entry`
- - ``dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
- - The decoded picture buffer, for meta-data about reference frames.
* - __u8
- ``num_poc_st_curr_before``
- The number of reference pictures in the short-term set that come before
@@ -3535,6 +3532,9 @@ enum v4l2_mpeg_video_hevc_size_of_length_field -
- ``poc_lt_curr[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
- PocLtCurr as described in section 8.3.2 "Decoding process for reference
picture set": provides the index of the long term references in DPB array.
+ * - struct :c:type:`v4l2_hevc_dpb_entry`
+ - ``dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ - The decoded picture buffer, for meta-data about reference frames.
* - __u64
- ``flags``
- See :ref:`Decode Parameters Flags <hevc_decode_params_flags>`
diff --git a/drivers/media/v4l2-core/v4l2-ctrls-core.c b/drivers/media/v4l2-core/v4l2-ctrls-core.c
index c5c5407584ff..fb68786c498b 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls-core.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls-core.c
@@ -824,20 +824,11 @@ static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx,
if (p_hevc_decode_params->num_active_dpb_entries >
V4L2_HEVC_DPB_ENTRIES_NUM_MAX)
return -EINVAL;
-
- for (i = 0; i < p_hevc_decode_params->num_active_dpb_entries;
- i++) {
- struct v4l2_hevc_dpb_entry *dpb_entry =
- &p_hevc_decode_params->dpb[i];
-
- zero_padding(*dpb_entry);
- }
break;
case V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS:
p_hevc_slice_params = p;
- zero_padding(p_hevc_slice_params->pred_weight_table);
zero_padding(*p_hevc_slice_params);
break;
diff --git a/include/media/hevc-ctrls.h b/include/media/hevc-ctrls.h
index efc0412ac41e..9abca1a75bd4 100644
--- a/include/media/hevc-ctrls.h
+++ b/include/media/hevc-ctrls.h
@@ -133,7 +133,9 @@ struct v4l2_ctrl_hevc_sps {
__u8 chroma_format_idc;
__u8 sps_max_sub_layers_minus1;
+ __u8 reserved[6];
__u64 flags;
+ __u8 padding[24];
};
#define V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT_ENABLED (1ULL << 0)
@@ -210,9 +212,10 @@ struct v4l2_ctrl_hevc_pps {
__s8 pps_beta_offset_div2;
__s8 pps_tc_offset_div2;
__u8 log2_parallel_merge_level_minus2;
+ __u8 reserved[9];
- __u8 padding[4];
__u64 flags;
+ __u8 padding[56];
};
#define V4L2_HEVC_DPB_ENTRY_LONG_TERM_REFERENCE 0x01
@@ -245,8 +248,8 @@ struct v4l2_hevc_dpb_entry {
__u64 timestamp;
__u8 flags;
__u8 field_pic;
+ __u16 reserved;
__s32 pic_order_cnt_val;
- __u8 padding[2];
};
/**
@@ -285,8 +288,6 @@ struct v4l2_hevc_pred_weight_table {
__s8 delta_chroma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
__s8 chroma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
- __u8 padding[6];
-
__u8 luma_log2_weight_denom;
__s8 delta_chroma_log2_weight_denom;
};
@@ -381,18 +382,20 @@ struct v4l2_ctrl_hevc_slice_params {
/* ISO/IEC 23008-2, ITU-T Rec. H.265: Picture timing SEI message */
__u8 pic_struct;
+ __u8 reserved0[3];
/* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
__u32 slice_segment_addr;
__u8 ref_idx_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
__u8 ref_idx_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
__u16 short_term_ref_pic_set_size;
__u16 long_term_ref_pic_set_size;
- __u8 padding;
/* ISO/IEC 23008-2, ITU-T Rec. H.265: Weighted prediction parameter */
struct v4l2_hevc_pred_weight_table pred_weight_table;
+ __u8 reserved1[2];
__u64 flags;
+ __u8 padding[40];
};
#define V4L2_HEVC_DECODE_PARAM_FLAG_IRAP_PIC 0x1
@@ -408,7 +411,6 @@ struct v4l2_ctrl_hevc_slice_params {
* @long_term_ref_pic_set_size: specifies the size of long-term reference
* pictures set include in the SPS of the first slice
* @num_active_dpb_entries: the number of entries in dpb
- * @dpb: the decoded picture buffer, for meta-data about reference frames
* @num_poc_st_curr_before: the number of reference pictures in the short-term
* set that come before the current frame
* @num_poc_st_curr_after: the number of reference pictures in the short-term
@@ -419,6 +421,7 @@ struct v4l2_ctrl_hevc_slice_params {
* @poc_st_curr_after: provides the index of the short term after references
* in DPB array
* @poc_lt_curr: provides the index of the long term references in DPB array
+ * @dpb: the decoded picture buffer, for meta-data about reference frames
* @flags: see V4L2_HEVC_DECODE_PARAM_FLAG_{}
*/
struct v4l2_ctrl_hevc_decode_params {
@@ -426,14 +429,16 @@ struct v4l2_ctrl_hevc_decode_params {
__u16 short_term_ref_pic_set_size;
__u16 long_term_ref_pic_set_size;
__u8 num_active_dpb_entries;
- struct v4l2_hevc_dpb_entry dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
__u8 num_poc_st_curr_before;
__u8 num_poc_st_curr_after;
__u8 num_poc_lt_curr;
__u8 poc_st_curr_before[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
__u8 poc_st_curr_after[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
__u8 poc_lt_curr[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
+ __u8 reserved[4];
+ struct v4l2_hevc_dpb_entry dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
__u64 flags;
+ __u8 padding[56];
};
/**
--
2.32.0
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next prev parent reply other threads:[~2022-05-27 14:37 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-27 14:31 [PATCH v6 00/17] Move HEVC stateless controls out of staging Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 01/17] videodev2.h: add V4L2_CTRL_FLAG_DYNAMIC_ARRAY Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 02/17] v4l2-ctrls: add support for dynamically allocated arrays Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 03/17] vivid: add dynamic array test control Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 04/17] media: uapi: HEVC: Add missing fields in HEVC controls Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 05/17] media: uapi: HEVC: Rename HEVC stateless controls with STATELESS prefix Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 06/17] media: uapi: HEVC: Change pic_order_cnt definition in v4l2_hevc_dpb_entry Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 07/17] media: uapi: HEVC: Add SEI pic struct flags Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 08/17] media: uapi: HEVC: Add documentation to uAPI structure Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 09/17] media: uapi: HEVC: Define V4L2_CID_STATELESS_HEVC_SLICE_PARAMS as a dynamic array Benjamin Gaignard
2022-05-29 9:19 ` Jernej Škrabec
2022-06-01 15:43 ` Jernej Škrabec
2022-06-01 16:02 ` Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 10/17] media: uapi: Move parsed HEVC pixel format out of staging Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 11/17] media: uapi: Add V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS control Benjamin Gaignard
2022-05-29 6:40 ` Jernej Škrabec
2022-05-30 9:18 ` Hans Verkuil
2022-05-30 13:49 ` Hans Verkuil
2022-05-30 21:24 ` Jernej Škrabec
2022-05-31 6:58 ` Benjamin Gaignard
2022-05-31 18:20 ` Jernej Škrabec
2022-06-01 16:20 ` Nicolas Dufresne
2022-06-01 16:35 ` Jernej Škrabec
2022-06-01 17:07 ` Nicolas Dufresne
2022-06-10 14:08 ` John Cox
2022-05-27 14:31 ` [PATCH v6 12/17] media: uapi: Move the HEVC stateless control type out of staging Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 13/17] media: controls: Log HEVC stateless control in .std_log Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 14/17] media: hantro: Stop using Hantro dedicated control Benjamin Gaignard
2022-05-27 14:31 ` Benjamin Gaignard [this message]
2022-05-27 14:31 ` [PATCH v6 16/17] media: uapi: Change data_bit_offset definition Benjamin Gaignard
2022-05-29 6:45 ` Jernej Škrabec
2022-06-01 16:17 ` Jernej Škrabec
2022-06-01 16:33 ` Benjamin Gaignard
2022-06-12 20:40 ` Jernej Škrabec
2022-06-13 18:17 ` Jernej Škrabec
2022-06-10 14:00 ` [PATCH v6 00/17] Move HEVC stateless controls out of staging John Cox
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