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36d46a5907
linux/arch/um/drivers
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Johannes Berg 36d46a5907 um: Support dynamic IRQ allocation 
It's cumbersome and error-prone to keep adding fixed IRQ numbers,
and for proper device wakeup support for the virtio/vhost-user
support we need to have different IRQs for each device. Even if
in theory two IRQs (with and without wake) might be sufficient,
it's much easier to reason about it when we have dynamic number
assignment. It also makes it easier to add new devices that may
dynamically exist or depending on the configuration, etc.

Add support for this, up to 64 IRQs (the same limit as epoll FDs
we have right now). Since it's not easy to port all the existing
places to dynamic allocation (some data is statically initialized)
keep the low numbers are reserved for the existing hard-coded IRQ
numbers.

Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2020-12-13 22:22:08 +01:00
..
chan_kern.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
chan_user.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
chan_user.h um: Add an option to make serial driver non-raw 2020-01-19 22:41:50 +01:00
chan.h um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
cow_sys.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cow_user.c um: ubd: use 64-bit time_t where possible 2019-12-18 18:07:31 +01:00
cow.h um: ubd: use 64-bit time_t where possible 2019-12-18 18:07:31 +01:00
daemon_kern.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
daemon_user.c um: Some fixes to build UML with musl 2020-10-11 23:13:06 +02:00
daemon.h um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
fd.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
harddog_kern.c compat_ioctl: move WDIOC handling into wdt drivers 2019-10-23 17:23:46 +02:00
harddog_user.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
hostaudio_kern.c compat_ioctl: remove translation for sound ioctls 2019-10-23 17:23:45 +02:00
Kconfig um: Allow static linking for non-glibc implementations 2020-10-11 23:13:15 +02:00
line.c um: Support dynamic IRQ allocation 2020-12-13 22:22:08 +01:00
line.h um: line, remove put_char 2020-06-24 16:53:37 +02:00
Makefile um: Do not evaluate compiler's library path when cleaning 2020-06-02 22:37:41 +02:00
mconsole_kern.c um: Support dynamic IRQ allocation 2020-12-13 22:22:08 +01:00
mconsole_kern.h um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
mconsole_user.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
mconsole.h um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
mmapper_kern.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
net_kern.c um: Support dynamic IRQ allocation 2020-12-13 22:22:08 +01:00
net_user.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
null.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
pcap_kern.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
pcap_user.c um: Some fixes to build UML with musl 2020-10-11 23:13:06 +02:00
pcap_user.h um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
port_kern.c um: Support dynamic IRQ allocation 2020-12-13 22:22:08 +01:00
port_user.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
port.h um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
pty.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
random.c um: Support dynamic IRQ allocation 2020-12-13 22:22:08 +01:00
slip_common.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
slip_common.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
slip_kern.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
slip_user.c um: Some fixes to build UML with musl 2020-10-11 23:13:06 +02:00
slip.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
slirp_kern.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
slirp_user.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
slirp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ssl.c um: line, remove put_char 2020-06-24 16:53:37 +02:00
stderr_console.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
stdio_console.c um: line, remove put_char 2020-06-24 16:53:37 +02:00
stdio_console.h um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
tty.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
ubd_kern.c um: Support dynamic IRQ allocation 2020-12-13 22:22:08 +01:00
ubd_user.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
ubd.h um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
umcast_kern.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
umcast_user.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
umcast.h um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
vde_kern.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
vde_user.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
vde.h um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
vector_kern.c um: Support dynamic IRQ allocation 2020-12-13 22:22:08 +01:00
vector_kern.h um: virtio: Replace zero-length array with flexible-array 2020-06-02 22:38:00 +02:00
vector_transports.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
vector_user.c um: vector: Add dynamic tap interfaces and scripting 2020-10-11 23:26:37 +02:00
vector_user.h um: Fix typo in vector driver transport option definition 2020-04-29 21:22:15 +02:00
vhost_user.h um: virtio: Replace zero-length array with flexible-array 2020-06-02 22:38:00 +02:00
virtio_uml.c um: Support dynamic IRQ allocation 2020-12-13 22:22:08 +01:00
xterm_kern.c um: Support dynamic IRQ allocation 2020-12-13 22:22:08 +01:00
xterm.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
xterm.h um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00