* strongly ordered comment on device memory in mmu.c
@ 2012-06-04 22:16 John Linn
2012-06-04 23:59 ` Russell King - ARM Linux
0 siblings, 1 reply; 2+ messages in thread
From: John Linn @ 2012-06-04 22:16 UTC (permalink / raw)
To: linux-arm-kernel
Hi,
We see that the following comment appears to be wrong in that the
memory is device memory rather than strongly ordered memory.
??????? [MT_DEVICE] = {?????????? /* Strongly ordered / ARMv6 shared device */
If it's really just a bad comment we'll do a patch, but I was
wondering if there's more to it such that the comment is correct?
Thanks
^ permalink raw reply [flat|nested] 2+ messages in thread
* strongly ordered comment on device memory in mmu.c
2012-06-04 22:16 strongly ordered comment on device memory in mmu.c John Linn
@ 2012-06-04 23:59 ` Russell King - ARM Linux
0 siblings, 0 replies; 2+ messages in thread
From: Russell King - ARM Linux @ 2012-06-04 23:59 UTC (permalink / raw)
To: linux-arm-kernel
On Mon, Jun 04, 2012 at 03:16:31PM -0700, John Linn wrote:
> Hi,
>
> We see that the following comment appears to be wrong in that the
> memory is device memory rather than strongly ordered memory.
>
> ??????? [MT_DEVICE] = {?????????? /* Strongly ordered / ARMv6 shared device */
>
> If it's really just a bad comment we'll do a patch, but I was
> wondering if there's more to it such that the comment is correct?
On pre-ARMv6, it's strongly ordered. On post-ARMv6, it's "shared device".
The comment is accurate though possibly a little ambiguous; you're just
unaware of the history.
^ permalink raw reply [flat|nested] 2+ messages in thread
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