1.Change priv to client or server
2.Allocate memory for name in regulator_rpmsg_get
3.Lock/unlock regulator_list in regulator_rpmsg_server_s
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
It uses the memory block as the serial communication medium, which can communicate between different processes or different CPUs
Using the following configuration, the cross-core communication rate of 200MHz cortex-M55 is about 461KB/s
RAM_UART_BUFSIZE=1024
RAM_UART_POLLING_INTERVAL=100
Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
A dead lock may happen before this patch:
rptun thread (usrsock_rpmsg_recvfrom_handler):
Gets all tx payload but waiting net_lock in psock_recvfrom
net driver thread (higher priority):
Receives a packet, holding net_lock, calling usrsock_rpmsg_send_event
But no tx buffer left, so rpmsg_send blocks, and won't release net_lock
In short:
Rptun: Hold all `tx_payload_buffer` -> want `net_lock`
Driver: Hold `net_lock` -> want `tx_payload_buffer`
This patch use net_lock to combine get_tx_payload and recvfrom together,
then:
- If it's waiting net_lock, tx payload will not be held, other threads
may get tx buffer and do their work.
- If net_lock is got, it won't be disturbed before finish receiving,
then tx payload won't have chance to be blocked before releasing.
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
Note:
tcp_poll_eventhandler have logic after poll_notify, if we teardown poll
inside poll callback without clearing revents, use-after-free will
happen.
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
The circbuf part is implemented by the fb driver, and goldfish needs to
delete the part related to circbuf and adapt to the interface of the fb
driver.
Signed-off-by: jianglianfang <jianglianfang@xiaomi.com>
refact vsync queue to support multi fb poll and overlay poll.
Signed-off-by: pengyiqiang <pengyiqiang@xiaomi.com>
Signed-off-by: rongyichang <rongyichang@xiaomi.com>
Summary
The following compilation error occurs after configuring CONFIG_DEBUG_OPTLEVEL="-O3"
CC: ping.c video/video.c: In function 'video_ioctl':
video/video.c:2347:22: error: 'control.size' may be used uninitialized [-Werror=maybe-uninitialized]
2347 | control->size,
| ^~
video/video.c:2273:28: note: 'control' declared here
2273 | struct v4l2_ext_control control;
| ^~~~~~~
Signed-off-by: wangming9 <wangming9@xiaomi.com>
Add usb_fs driver so that userspace can directly transfer USB packets
through the EP node. ADB, Fastboot, MTP will use usb_fs, these class
driver only need to provide the descriptors and register the usb_fs device.
Signed-off-by: zhangyuan21 <zhangyuan21@xiaomi.com>
Signed-off-by: zhangyuan21 <zhangyuan21@xiaomi.com>
The RPMB partition cannot be accessed via standard block layer, but by a set of specific commands: WRITE, READ, GET_WRITE_COUNTER, and PROGRAM_KEY. Such a partition provides authenticated and replay protected access, hence suitable as a secure storage.
Signed-off-by: wanggang26 <wanggang26@xiaomi.com>
In sensor_rpmsg_ioctl, when rpmsg_get_tx_payload_buffer is block,
The rptun thread will continue to process rx_buffers from other cores,
So the proxy may be released in sensor_unadv_handler, then if using
the proxy, It causes a crash.
backtrace:
0 0x06007c2e in is_rpmsg_ept_ready (ept=0x5a5a5a5a) at nuttx/include/openamp/rpmsg.h:172
1 0x06013354 in rpmsg_send_nocopy (len=<optimized out>,
data=<optimized out>, ept=<optimized out>) at nuttx/include/openamp/rpmsg.h:521
2 rpmsg_send_nocopy (ept=0x5a5a5a5a, data=data@entry=0x201facf0,
len=len@entry=40) at nuttx/include/openamp/rpmsg.h:512
3 0x06013b34 in sensor_rpmsg_ioctl (dev=dev@entry=0x201b7388,
cmd=538701816, cmd@entry=2690, arg=0, len=len@entry=0,
wait=<error reading variable: dwarf2_find_location_expression:
Corrupted DWARF expression.>) at ../../../drivers/sensors/sensor_rpmsg.c:395
4 0x06013cce in sensor_rpmsg_alloc_proxy (dev=dev@entry=0x201b7388,
ept=ept@entry=0x202073d0, msg=msg@entry=0x201684f0) at ../../../drivers/sensors/sensor_rpmsg.c:498
5 0x06013d12 in sensor_rpmsg_adv_handler (ept=0x202073d0,
data=0x201684f0, len=49, src=<optimized out>, priv=0x202073c8) at ../../../drivers/sensors/sensor_rpmsg.c:905
6 0x0600d45e in sensor_rpmsg_ept_cb (ept=<optimized out>,
data=<optimized out>, len=<optimized out>, src=<optimized out>,
priv=0x202073c8) at ../../../drivers/sensors/sensor_rpmsg.c:1168
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
vfork use waitpid hang father process,
but waitpid release child processs information by default.
So when user call wait, it return errno 10.
Signed-off-by: yangyalei <yangyalei@xiaomi.com>
When the machine is cold started, the psram area where the syslog
buffer is located contains some random values, so it will cause
loss of valid log.
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
