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6d2199868a
linux/include/media
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Sergey Senozhatsky 6d2199868a media: videobuf2: add cache management members 
Extend vb2_buffer and vb2_queue structs with cache management
members.

V4L2 UAPI already contains two buffer flags which user-space,
supposedly, can use to control buffer cache sync:

- V4L2_BUF_FLAG_NO_CACHE_INVALIDATE
- V4L2_BUF_FLAG_NO_CACHE_CLEAN

None of these, however, do anything at the moment. This patch
set is intended to change it.

Since user-space cache management hints are supposed to be
implemented on a per-buffer basis we need to extend vb2_buffer
struct with two new members ->need_cache_sync_on_prepare and
->need_cache_sync_on_finish, which will store corresponding
user-space hints.

In order to preserve the existing behaviour, user-space cache
managements flags will be handled only by those drivers that
permit user-space cache hints. That's the purpose of vb2_queue
->allow_cache_hints member. Driver must set ->allow_cache_hints
during queue initialisation to enable cache management hints
mechanism.

Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-06-23 13:24:27 +02:00
..
davinci media: davinci/vpfe_capture.c: drop unused format descriptions 2019-07-25 06:30:00 -04:00
drv-intf media: media/platform: don't set description in ENUM_FMT 2019-07-22 14:43:59 -04:00
i2c media: smiapp: Move definitions under driver directory 2020-02-27 17:49:04 -03:00
tpg media: include/(uapi/)media: add SPDX license info 2018-02-14 13:23:51 -05:00
cec-notifier.h Update rmk's email address in various drivers 2020-04-21 17:50:09 +01:00
cec-pin.h media: cec-gpio: handle gpiod_get_value errors correctly 2020-04-29 12:04:38 +02:00
cec.h media: cec: remove unused functions 2020-01-08 14:38:06 +01:00
demux.h media: dvb: update buffer mmaped flags and frame counter 2018-02-23 11:44:08 -05:00
dmxdev.h media: dmxdev: Fix the logic that enables DMA mmap support 2018-02-23 05:27:10 -05:00
dvb_ca_en50221.h
dvb_demux.h media: dvb: update buffer mmaped flags and frame counter 2018-02-23 11:44:08 -05:00
dvb_frontend.h media: dvb_frontend.h: Fix shifting signed 32-bit value problem 2019-08-14 05:04:08 -03:00
dvb_math.h
dvb_net.h
dvb_ringbuffer.h
dvb_vb2.h media: dvb: update buffer mmaped flags and frame counter 2018-02-23 11:44:08 -05:00
dvb-usb-ids.h media: dvb-usb: Add Cinergy S2 PCIe Dual Port support 2020-05-25 09:09:39 +02:00
dvbdev.h media: docs: fix minor typos 2019-06-05 11:31:51 -04:00
fwht-ctrls.h media: vicodec: Introducing stateless fwht defs and structs 2019-03-25 14:02:30 -04:00
h264-ctrls.h media: v4l2-core: Add helpers to build the H264 P/B0/B1 reflists 2020-04-21 13:46:40 +02:00
hevc-ctrls.h media: v4l: Add definitions for HEVC stateless decoding 2019-10-24 18:09:18 -03:00
imx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
media-dev-allocator.h media: Media Device Allocator API 2019-04-22 11:18:26 -04:00
media-device.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
media-devnode.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
media-entity.h media: entity: Pass entity to get_fwnode_pad operation 2020-05-18 11:12:05 +02:00
media-request.h media: media requests: return EBADR instead of EACCES 2019-03-25 13:26:10 -04:00
mpeg2-ctrls.h media: cedrus: identify buffers by timestamp 2019-01-07 13:20:54 -05:00
rc-core.h media: rc: make scancodes 64 bit 2020-03-12 09:20:46 +01:00
rc-map.h media: rc: if kernel is built without an IR codec, don't advertise it 2020-04-21 12:54:42 +02:00
rcar-fcp.h media: rcar-fcp: convert to SPDX identifiers 2018-09-12 09:29:03 -04:00
soc_camera.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
tuner-types.h
tuner.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
tveeprom.h
v4l2-async.h media: v4l2-async: Add v4l2_async_notifier_add_fwnode_remote_subdev 2019-07-25 08:03:03 -04:00
v4l2-clk.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
v4l2-common.h media: v4l2: abstract timeval handling in v4l2_buffer 2020-01-03 15:43:35 +01:00
v4l2-ctrls.h media: v4l2-ctrls: Add helper to register properties 2020-05-18 15:36:20 +02:00
v4l2-dev.h media: v4l2-dev: Add v4l2_device_register_ro_subdev_node() 2020-05-12 17:04:07 +02:00
v4l2-device.h media: v4l2-dev: Add v4l2_device_register_ro_subdev_node() 2020-05-12 17:04:07 +02:00
v4l2-dv-timings.h media: cec/v4l2: move V4L2 specific CEC functions to V4L2 2018-09-24 09:11:04 -04:00
v4l2-event.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
v4l2-fh.h media: v4l2-fh: define v4l2_fh struct regardless of condition 2020-04-21 13:40:06 +02:00
v4l2-flash-led-class.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
v4l2-fwnode.h media: v4l2-fwnode: Add helper to parse device properties 2020-05-18 15:34:56 +02:00
v4l2-h264.h media: v4l2-core: Add helpers to build the H264 P/B0/B1 reflists 2020-04-21 13:46:40 +02:00
v4l2-image-sizes.h media: v4l2-image-sizes: add HD and Full-HD definitions 2020-04-21 17:21:51 +02:00
v4l2-ioctl.h media: v4l2-core: fix v4l2_buffer handling for time64 ABI 2020-01-03 15:50:21 +01:00
v4l2-jpeg.h media: add v4l2 JPEG helpers 2020-04-14 11:47:47 +02:00
v4l2-mc.h media: v4l2-mc: add v4l2_create_fwnode_links helpers 2020-05-18 11:14:05 +02:00
v4l2-mediabus.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
v4l2-mem2mem.h media: v4l2-mem2mem: handle draining, stopped and next-buf-is-last states 2020-03-05 22:54:49 +01:00
v4l2-rect.h media: v4l2-rect.h: fix v4l2_rect_map_inside() top/left adjustments 2020-01-08 14:34:14 +01:00
v4l2-subdev.h media: v4l2-subdev: add v4l2_subdev_get_fwnode_pad_1_to_1 2020-05-18 11:12:52 +02:00
videobuf2-core.h media: videobuf2: add cache management members 2020-06-23 13:24:27 +02:00
videobuf2-dma-contig.h media: videobuf2-dma-contig: fix bad kfree in vb2_dma_contig_clear_max_seg_size 2020-06-11 19:20:55 +02:00
videobuf2-dma-sg.h media: Change Andrzej Pietrasiewicz's e-mail address 2019-01-16 11:21:07 -05:00
videobuf2-dvb.h
videobuf2-memops.h media: videobuf2-vmalloc: get_userptr: buffers are always writable 2019-05-29 08:05:58 -04:00
videobuf2-v4l2.h media: vb2: add V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF 2019-10-21 07:37:57 -03:00
videobuf2-vmalloc.h
videobuf-core.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 237 2019-06-19 17:09:07 +02:00
videobuf-dma-contig.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 237 2019-06-19 17:09:07 +02:00
videobuf-dma-sg.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 237 2019-06-19 17:09:07 +02:00
videobuf-vmalloc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 237 2019-06-19 17:09:07 +02:00
vp8-ctrls.h media: uapi: new file needs types.h 2019-07-23 08:19:32 -04:00
vsp1.h media: vsp1: drm: Implement writeback support 2019-03-18 17:24:14 +02:00