- ioctl(fd, RPMSG_CREATE_EPT_FD_IOCTL, &info);
- fd_ep = info.fd
- operations on fd_ep(write, read, poll ioctl)
- ioctl(fd_ep, RPMSG_DESTROY_EPT_IOCTL)
- close(fd_ep)
- close(fd)
Signed-off-by: Dawei Li
---
drivers/rpmsg/rpmsg_ctrl.c | 35 ---
include/uapi/linu
v/
Changes in v3:
- s/anon/anonymous (Mathieu)
- API naming adjustment (Mathieu)
- __rpmsg_chrdev_eptdev_alloc -> rpmsg_eptdev_alloc
- __rpmsg_chrdev_eptdev_add -> rpmsg_eptdev_add
- Add parameter 'flags' to uAPI so user can specify file flags
explicitly on creating anon
Introduce new eptdev abstraction based on anonymous inode. The new API
is exactly same with legacy one except:
- It's anonymous and devnode/path free.
- Its fops->open() is empty.
Signed-off-by: Dawei Li
---
drivers/rpmsg/rpmsg_char.c | 49 ++
drive
the fd to userspace.
The legacy abstraction based on struct dev and struct cdev is honored
for:
- Avoid legacy uAPI break(RPMSG_CREATE_EPT_IOCTL)
- Reuse existing logic:
-- dev_err() and friends.
-- Life cycle management of struct device.
Signed-off-by: Dawei Li
---
drivers/rpmsg/rpmsg_char.
HI Beleswar,
Thanks for reviewing.
On Fri, May 30, 2025 at 03:15:28PM +0530, Beleswar Prasad Padhi wrote:
> Hi Dawei,
>
> On 19/05/25 20:38, Dawei Li wrote:
> > Implement RPMSG_CREATE_EPT_FD_IOCTL, new uAPI for rpmsg ctrl, which
> > shares most of operations of RPMSG_CR
Introduce new eptdev abstraction based on anonymous inode. The new API
is exactly same with legacy one except:
- It's anonymous and devnode/path free.
- Its fops->open() is empty.
Signed-off-by: Dawei Li
---
drivers/rpmsg/rpmsg_char.c | 49 ++
drive
- ioctl(fd, RPMSG_CREATE_EPT_FD_IOCTL, &info);
- fd_ep = info.fd
- operations on fd_ep(write, read, poll ioctl)
- ioctl(fd_ep, RPMSG_DESTROY_EPT_IOCTL)
- close(fd_ep)
- close(fd)
Signed-off-by: Dawei Li
---
drivers/rpmsg/rpmsg_ctrl.c | 38 ++
include/uapi/linu
ecify file flags
explicitly on creating anonymous inode.
- Link to v2:
https://lore.kernel.org/all/20250509155927.109258-1-dawei...@linux.dev/
Changes in v2:
- Fix compilation error for !CONFIG_RPMSG_CHAR config(Test robot).
- Link to v1:
https://lore.kernel.org/all/20250507141712.4276-1-dawei...@
the fd to userspace.
The legacy abstraction based on struct dev and struct cdev is honored
for:
- Avoid legacy uAPI break(RPMSG_CREATE_EPT_IOCTL)
- Reuse existing logic:
-- dev_err() and friends.
-- Life cycle management of struct device.
Signed-off-by: Dawei Li
---
drivers/rpmsg/rpmsg_char.
Hi Mathieu,
Thanks for reviewing.
On Thu, May 15, 2025 at 02:24:04PM -0600, Mathieu Poirier wrote:
> Hi,
>
> On Fri, May 09, 2025 at 11:59:25PM +0800, Dawei Li wrote:
> > Current uAPI implementation for rpmsg ctrl & char device manipulation is
> > abstr
ce node and opening it, rpmsg code just make
a anon inode representing eptdev and return the fd to userspace.
The legacy abstraction based on struct dev and struct cdev is honored
for:
- Avoid legacy uAPI break(RPMSG_CREATE_EPT_IOCTL)
- Reuse existing logic:
-- dev_err() and friends.
-- Life cy
Introduce new eptdev abstraction based on anon inode. The new API is
exactly same with legacy one except:
- It's anonymous and devnode/path free.
- Its fops->open() is empty.
Signed-off-by: Dawei Li
---
drivers/rpmsg/rpmsg_char.c | 44 ++
drive
- ioctl(fd, RPMSG_CREATE_EPT_FD_IOCTL, &info);
- fd_ep = info.fd
- operations on fd_ep(write, read, poll ioctl)
- ioctl(fd_ep, RPMSG_DESTROY_EPT_IOCTL)
- close(fd_ep)
- close(fd)
Signed-off-by: Dawei Li
---
drivers/rpmsg/rpmsg_ctrl.c | 37 +
include/uapi/linu
261488 75.7
29 10 19719341 263299 74.8
30 10 19871390258465 76.8
# Changelog:
Changes in v2:
- Fix compilation error for !CONFIG_RPMSG_CHAR config(Test robot).
- Link to v1:
https://lore.kernel.org/all/20250507141712.427
- ioctl(fd, RPMSG_CREATE_EPT_FD_IOCTL, &info);
- fd_ep = info.fd
- operations on fd_ep(write, read, poll ioctl)
- ioctl(fd_ep, RPMSG_DESTROY_EPT_IOCTL)
- close(fd_ep)
- close(fd)
Signed-off-by: Dawei Li
---
drivers/rpmsg/rpmsg_ctrl.c | 37 +
include/uapi/linu
ce node and opening it, rpmsg code just make
a anon inode representing eptdev and return the fd to userspace.
The legacy abstraction based on struct dev and struct cdev is honored
for:
- Avoid legacy uAPI break(RPMSG_CREATE_EPT_IOCTL)
- Reuse existing logic:
-- dev_err() and friends.
-- Life cy
Introduce new eptdev abstraction based on anon inode. The new API is
exactly same with legacy one except:
- It's anonymous and devnode/path free.
- Its fops->open() is empty.
Signed-off-by: Dawei Li
---
drivers/rpmsg/rpmsg_char.c | 44 ++
drive
10 1976257199 76.9
25 10 19937663258865 77.0
26 10 19602512 256771 76.3
27 10 19599214257088 76.2
28 10 19795920261488 75.7
29
Openrisc's implementation of fix_to_virt() & virt_to_fix() share same
functionality with ones of asm generic.
Plus, generic version of fix_to_virt() can trap invalid index at compile
time.
Thus, Replace the arch-specific implementations with asm generic's ones.
Signed-of
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