Thread (21 messages) 21 messages, 7 authors, 2021-12-13

Re: [PATCH v2] Documentation: Fill the gaps about entry/noinstr constraints

From: Randy Dunlap <hidden>
Date: 2021-12-06 21:24:30
Also in: lkml, rcu


On 12/6/21 09:53, Paul E. McKenney wrote:
On Mon, Dec 06, 2021 at 05:36:51PM +0000, Mark Rutland wrote:
quoted
On Fri, Dec 03, 2021 at 07:48:08PM -0800, Randy Dunlap wrote:
quoted
On 12/1/21 12:35, Thomas Gleixner wrote:
quoted
+Aside of that many architectures have to save register state, e.g. debug or
                                                          state (e.g. debug) or
quoted
+cause registers before another exception of the same type can happen. A
   ^^^^^ cannot parse (with or without the change to the previous line)
I think the difficulty here is with "cause register"? That' a register which
indicates the cause of an exception, e.g.
Oh. I see. Thanks.
quoted
* MIPS has `cause` (coprocessor 0 register 13)
* arm64 / AArch64 has `ESR_ELx` (Exception Syndrome Register, ELx)

We could probably clarify this as "exception cause registers" or "exception
status registers", if that helps?
Or to make it word-by-word unambiguous, "exception-cause registers"
and "exception-status registers".
Any of those works. Or even 'cause' registers.

-- 
~Randy

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