Sorry, sent the wrong patch!
Please ignore this one.
Sending the v2 in another email.
On Wed, Feb 22, 2023 at 02:31:12PM +0530, Kautuk Consul wrote:
> A link from ibm.com states:
> "Ensures that all instructions preceding the call to __lwsync
> complete before any subsequent store instructions
A link from ibm.com states:
"Ensures that all instructions preceding the call to __lwsync
complete before any subsequent store instructions can be executed
on the processor that executed the function. Also, it ensures that
all load instructions preceding the call to __lwsync complete before
> No, I don't mean to use the existing #ifdef/elif/else.
>
> Define an #ifdef /#else dedicated to xmb macros.
>
> Something like that:
>
> @@ -35,9 +35,15 @@
>* However, on CPUs that don't support lwsync, lwsync actually maps to a
>* heavy-weight sync, so smp_wmb() can be a
Le 22/02/2023 à 09:16, Kautuk Consul a écrit :
> On Wed, Feb 22, 2023 at 07:02:34AM +, Christophe Leroy wrote:
>>
>>
>> Le 22/02/2023 à 07:01, Kautuk Consul a écrit :
>>> A link from ibm.com states:
>>> "Ensures that all instructions preceding the call to __lwsync
>>>complete before any
On Wed, Feb 22, 2023 at 08:28:19AM +, Christophe Leroy wrote:
>
>
> Le 22/02/2023 à 09:21, Kautuk Consul a écrit :
> >> On Wed, Feb 22, 2023 at 07:02:34AM +, Christophe Leroy wrote:
> +/* Redefine rmb() to lwsync. */
> >>>
> >>> WHat's the added value of this comment ? Isn't it
Le 22/02/2023 à 09:21, Kautuk Consul a écrit :
>> On Wed, Feb 22, 2023 at 07:02:34AM +, Christophe Leroy wrote:
+/* Redefine rmb() to lwsync. */
>>>
>>> WHat's the added value of this comment ? Isn't it obvious in the line
>>> below that rmb() is being defined to lwsync ? Please avoid
> On Wed, Feb 22, 2023 at 07:02:34AM +, Christophe Leroy wrote:
> > > +/* Redefine rmb() to lwsync. */
> >
> > WHat's the added value of this comment ? Isn't it obvious in the line
> > below that rmb() is being defined to lwsync ? Please avoid useless comments.
> Sure.
Sorry, forgot to add
On Wed, Feb 22, 2023 at 07:02:34AM +, Christophe Leroy wrote:
>
>
> Le 22/02/2023 à 07:01, Kautuk Consul a écrit :
> > A link from ibm.com states:
> > "Ensures that all instructions preceding the call to __lwsync
> > complete before any subsequent store instructions can be executed
> >
Le 22/02/2023 à 07:01, Kautuk Consul a écrit :
> A link from ibm.com states:
> "Ensures that all instructions preceding the call to __lwsync
> complete before any subsequent store instructions can be executed
> on the processor that executed the function. Also, it ensures that
> all load
Hi All,
On Wed, Feb 22, 2023 at 11:31:07AM +0530, Kautuk Consul wrote:
> /* The sub-arch has lwsync */
> #if defined(CONFIG_PPC64) || defined(CONFIG_PPC_E500MC)
> -#define SMPWMB LWSYNC
> +#undef rmb
> +#undef wmb
> +/* Redefine rmb() to lwsync. */
> +#define rmb()({__asm__
A link from ibm.com states:
"Ensures that all instructions preceding the call to __lwsync
complete before any subsequent store instructions can be executed
on the processor that executed the function. Also, it ensures that
all load instructions preceding the call to __lwsync complete before
11 matches
Mail list logo
