Commit graph

11 commits

Author SHA1 Message Date
Simon Glass
b215b6034c event: Pass the images to EVT_FT_FIXUP
Pass the boot images along as well, in case the fixups need to look at
them.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 16:07:58 -04:00
Simon Glass
b5001cb4bd event: Allow multiple spy declarations for each event
At present only one spy is allowed per event. Update the naming to allow
more than one, since some need this flexibility, e.g. the EVT_FT_FIXUP
event.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 16:07:57 -04:00
Simon Glass
98887ab802 event: Add an event for device tree fixups
At present there is a confusing array of functions that handle the
device tree fix-ups needed for booting an OS. We should be able to switch
to using events to clean this up.

As a first step, create a new event type and call it from the standard
place.

Note that this event uses the ofnode interface only, since this can
support live tree which is more efficient when making lots of updates.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-12 08:17:11 -04:00
Simon Glass
569524741a event: Change EVENT_SPY to global
This creates static records at present, but it causes a problem with clang
and LTO: the linker list records are sometimes dropped from the image.

Fix this by making the records global.

Update to use __used while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-12 08:17:11 -04:00
Ovidiu Panait
cebc816170 event: fix static events for CONFIG_NEEDS_MANUAL_RELOC
Static events do not currently work post-relocation for boards that enable
CONFIG_NEEDS_MANUAL_RELOC. Relocate event handler pointers for all event
spies to fix this.

Tested on Microblaze.

Signed-off-by: Ovidiu Panait <ovpanait@gmail.com>
2022-06-06 18:01:20 -04:00
Heinrich Schuchardt
c5ef202557 dm: fix DM_EVENT dependencies
CONFIG_DM_EVENT without CONFIG_EVENT is non-functional.
Let CONFIG_DM_EVENT depend on CONFIG_EVENT.

Remove superfluous stub in include/event.h.

Fixes: 5b896ed585 ("event: Add events for device probe/remove")
Reported-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-06-06 17:47:16 -04:00
Simon Glass
c81b460c86 event: Add a command
Add a command to show the available events.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-03-10 08:28:36 -05:00
Simon Glass
7fe32b3442 event: Convert arch_cpu_init_dm() to use events
Instead of a special function, send an event after driver model is inited
and adjust the boards which use this function.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-03-10 08:28:36 -05:00
Simon Glass
42fdcebf85 event: Convert misc_init_f() to use events
This hook can be implmented using events, for the three boards that
actually use it.

Add the event type and event handlers. Drop CONFIG_MISC_INIT_F since we
can just use CONFIG_EVENT to control this. Since sandbox always enables
CONFIG_EVENT, we can drop the defconfig lines there too.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-03-10 08:28:36 -05:00
Simon Glass
5b896ed585 event: Add events for device probe/remove
Generate events when devices are probed or removed, allowing hooks
to be added for these situations.

This is controlled by the DM_EVENT config option.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-03-10 08:28:36 -05:00
Simon Glass
87a5d1b5d0 event: Add basic support for events
Add a way to create and dispatch events without needing to allocate
memory. Also add a way to 'spy' on events, thus allowing 'hooks' to be
created.

Use a linker list for static events, which we can use to replace functions
like arch_cpu_init_f(). Allow an EVENT_DEBUG option which makes it
easier to see what is going on at runtime, but uses more code space.

Dynamic events allow the creation of a spy at runtime. This is not always
necessary, but can be enabled with EVENT_DYNAMIC if needed.

A 'test' event is the only option for now.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-03-10 08:28:36 -05:00