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| author | Simon Glass <sjg@chromium.org> | 2022-03-04 08:43:00 -0700 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2022-03-10 08:28:36 -0500 |
| commit | 87a5d1b5d012b0663517bfa36f5e01c8028f121a (patch) | |
| tree | 4512a25b7200e1c84cb07aa64a17f98c46a1a13f /include/asm-generic/global_data.h | |
| parent | 64defba4ea55736926c5152a245164ace58fa04e (diff) | |
| download | u-boot-87a5d1b5d012b0663517bfa36f5e01c8028f121a.zip u-boot-87a5d1b5d012b0663517bfa36f5e01c8028f121a.tar.gz u-boot-87a5d1b5d012b0663517bfa36f5e01c8028f121a.tar.bz2 | |
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>
Diffstat (limited to 'include/asm-generic/global_data.h')
| -rw-r--r-- | include/asm-generic/global_data.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h index c2f8fad..e49f5bf 100644 --- a/include/asm-generic/global_data.h +++ b/include/asm-generic/global_data.h @@ -20,6 +20,7 @@ */ #ifndef __ASSEMBLY__ +#include <event_internal.h> #include <fdtdec.h> #include <membuff.h> #include <linux/list.h> @@ -467,6 +468,12 @@ struct global_data { */ char *smbios_version; #endif +#if CONFIG_IS_ENABLED(EVENT) + /** + * @event_state: Points to the current state of events + */ + struct event_state event_state; +#endif }; #ifndef DO_DEPS_ONLY static_assert(sizeof(struct global_data) == GD_SIZE); @@ -532,6 +539,12 @@ static_assert(sizeof(struct global_data) == GD_SIZE); #define gd_set_multi_dtb_fit(_dtb) #endif +#if CONFIG_IS_ENABLED(EVENT_DYNAMIC) +#define gd_event_state() ((struct event_state *)&gd->event_state) +#else +#define gd_event_state() NULL +#endif + /** * enum gd_flags - global data flags * |