[bootlin/training-materials updates] master: Kernel slides: fix infos about virtual IRQs (ae4414a4)
Thomas Petazzoni
thomas.petazzoni at bootlin.com
Fri Oct 29 10:46:36 CEST 2021
Repository : https://github.com/bootlin/training-materials
On branch : master
Link : https://github.com/bootlin/training-materials/commit/ae4414a429931ca23bd8966be6ce0fa336da3504
>---------------------------------------------------------------
commit ae4414a429931ca23bd8966be6ce0fa336da3504
Author: Michael Opdenacker <michael.opdenacker at bootlin.com>
Date: Tue Apr 27 16:41:13 2021 +0200
Kernel slides: fix infos about virtual IRQs
- Infos no longer available in /sys/kernel/debug/irq_domain_mapping
- Physical IRQ numbers are available in individual files instead
Signed-off-by: Michael Opdenacker <michael.opdenacker at bootlin.com>
>---------------------------------------------------------------
ae4414a429931ca23bd8966be6ce0fa336da3504
.../kernel-driver-development-interrupts.tex | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/slides/kernel-driver-development-interrupts/kernel-driver-development-interrupts.tex b/slides/kernel-driver-development-interrupts/kernel-driver-development-interrupts.tex
index f858563a..f324bf08 100644
--- a/slides/kernel-driver-development-interrupts/kernel-driver-development-interrupts.tex
+++ b/slides/kernel-driver-development-interrupts/kernel-driver-development-interrupts.tex
@@ -100,10 +100,11 @@ IPI6: 0 0 0 0 completion interrupts
Err: 0
\end{verbatim}
\end{block}
- \footnotesize
+ {\footnotesize
Note: interrupt numbers shown on the left-most column are virtual
- numbers when the Device Tree is used. The real physical interrupt
- numbers can be seen in \code{/sys/kernel/debug/irq_domain_mapping}.
+ numbers when the Device Tree is used. The physical interrupt
+ numbers can be found in \code{/sys/kernel/debug/irq/irqs/<nr>} files
+ when \kconfigval{CONFIG_GENERIC_IRQ_DEBUGFS}{y}.}
\end{frame}
\begin{frame}[fragile]
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