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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-12-23 17:32:41 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-12-23 17:32:41 +0000 |
| commit | 10b6fd31cc5b27540bdde4999060a42de3e44d26 (patch) | |
| tree | 96203f9eb5cff73526dd98af4ed20a40080a758a /nuttx/arch/sh/src | |
| parent | 8a547ed6db3b7e17d90c8ebda107cafc98e7723e (diff) | |
| download | px4-nuttx-10b6fd31cc5b27540bdde4999060a42de3e44d26.tar.gz px4-nuttx-10b6fd31cc5b27540bdde4999060a42de3e44d26.tar.bz2 px4-nuttx-10b6fd31cc5b27540bdde4999060a42de3e44d26.zip | |
Mostly costmetic updates
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5452 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/sh/src')
| -rw-r--r-- | nuttx/arch/sh/src/common/up_doirq.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/nuttx/arch/sh/src/common/up_doirq.c b/nuttx/arch/sh/src/common/up_doirq.c index 717196682..185fa9684 100644 --- a/nuttx/arch/sh/src/common/up_doirq.c +++ b/nuttx/arch/sh/src/common/up_doirq.c @@ -79,6 +79,15 @@ uint32_t *up_doirq(int irq, uint32_t* regs) { uint32_t *savestate; + /* Nested interrupts are not supported in this implementation. If + * you want to implement nested interrupts, you would have to (1) + * change the way that current_regs is handled and (2) the design + * associated with CONFIG_ARCH_INTERRUPTSTACK. The savestate + * variable will not work for that purpose as implemented here + * because only the outermost nested interrupt can result in a + * context switch (it can probably be deleted). + */ + /* Current regs non-zero indicates that we are processing * an interrupt; current_regs is also used to manage * interrupt level context switches. |