On Fri, 2023-01-27 at 19:50 +1100, Andrew Donnellan wrote:
> Using a one-element array as a fake flexible array is deprecated.
>
> Replace the one-element flexible arrays in rtas-types.h with C99 standard
> flexible array members instead.
>
> This helps us move towards enabling
On Mon, 2022-09-12 at 14:58 -0500, Nathan Lynch wrote:
> Leonardo Brás writes:
> > On Fri, 2022-09-09 at 09:04 -0500, Nathan Lynch wrote:
> > > Leonardo Brás writes:
> > > > On Wed, 2022-09-07 at 17:01 -0500, Nathan Lynch wrote:
> > > > > At the tim
On Fri, 2022-09-09 at 09:04 -0500, Nathan Lynch wrote:
> Hi Leonardo,
>
> (restoring the list to the cc, hope that's ok)
>
Sure, thanks for doing that.
I probably had some mail composer issue here.
> Leonardo Brás writes:
> > On Wed, 2022-09-07 at 17:01 -050
Hello Wan, thank you for this patch.
On Thu, 2021-10-14 at 03:56 -0400, Wan Jiabing wrote:
> Fix following coccicheck warning:
>
> ./arch/powerpc/platforms/pseries/iommu.c:924:1-28: WARNING: Function
> for_each_node_with_property should have of_node_put() before break
>
> Early exits from
Hello Alexey,
On Tue, 2021-09-28 at 20:15 +1000, Alexey Kardashevskiy wrote:
> The upcoming PAPR spec adds a 2M page size, bit 23 right after the 16G
> page
> size in the "ibm,query-pe-dma-window" call.
>
> This adds support for the new page size. Since the new page size is out
> of sorted
On Tue, 2021-08-31 at 13:39 -0700, David Christensen wrote:
> >
> > This series allow Indirect DMA using DDW when available, which
> > usually
> > means bigger pagesizes and more TCEs, and so more DMA space.
>
> How is the mapping method selected? LPAR creation via the HMC, Linux
> kernel load
Hello Alexey,
On Fri, 2021-08-27 at 14:07 +1000, Alexey Kardashevskiy wrote:
> Since e1a1ef84cd07, pages for TCE tables for KVM guests are allocated
> only when needed. This allows skipping any update when clearing TCEs.
> This works mostly fine as TCE updates are handled when MMU is enabled.
>
Hello David,
Sorry for the delay, I did not get your mail because I was not CC'd
in your reply (you sent the mail just to the mailing list).
Replies bellow:
On Mon, 2021-08-30 at 10:48 -0700, David Christensen wrote:
> On 8/16/21 11:39 PM, Leonardo Bras wrote:
> > So far it's assumed possible
Hello Fred,
On Fri, 2021-08-27 at 19:06 +0200, Frederic Barrat wrote:
>
> I think it looks ok now as it was mostly me who was misunderstanding
> one
> part of the previous iteration.
> Reviewed-by: Frederic Barrat
>
Thank you for reviewing this series!
> Sorry for the late review, I was
On Tue, 2021-08-17 at 02:59 -0300, Leonardo Brás wrote:
> Hello Fred, thanks for the feedback!
>
> On Tue, 2021-07-20 at 19:51 +0200, Frederic Barrat wrote:
> >
> >
> > On 16/07/2021 10:27, Leonardo Bras wrote:
> > > Update remove_dma_window() so it can be u
Alexey, Fred:
On Fri, 2021-07-23 at 15:34 +1000, Alexey Kardashevskiy wrote:
>
>
> On 22/07/2021 01:04, Frederic Barrat wrote:
> >
> >
> > On 21/07/2021 05:32, Alexey Kardashevskiy wrote:
> > > > > + struct iommu_table *newtbl;
> > > > > + int i;
> > > > > +
> > > > > +
Hello Fred, thanks for the feedback!
On Tue, 2021-07-20 at 19:51 +0200, Frederic Barrat wrote:
>
>
> On 16/07/2021 10:27, Leonardo Bras wrote:
> > Update remove_dma_window() so it can be used to remove DDW with a
> > given
> > property name.
> >
> > This enables the creation of new property
Hello Alexey, Fred. Thanks for reviewing!
On Wed, 2021-07-21 at 13:32 +1000, Alexey Kardashevskiy wrote:
> > > spin_lock(_window_list_lock);
> >
> >
> >
> >
> > Somewhere around here, we have:
> >
> > out_remove_win:
> > remove_ddw(pdn, true, DIRECT64_PROPNAME);
> >
> > We should
Hello Fred, thanks for this feedback!
On Tue, 2021-07-20 at 19:49 +0200, Frederic Barrat wrote:
>
> > kfree(window);
> >
> > -out_clear_window:
> > - remove_ddw(pdn, true);
> > +out_del_prop:
> > + of_remove_property(pdn, win64);
> >
> > out_free_prop:
> >
Hello Fred, thanks for this feedback!
Sorry if I miss anything, this snippet was written for v1 over an year
ago, and I have not taken a look at it ever since.
On Mon, 2021-07-19 at 15:53 +0200, Frederic Barrat wrote:
>
>
> On 16/07/2021 10:27, Leonardo Bras wrote:
> > @@ -1099,18 +1105,13 @@
On Mon, 2021-07-19 at 16:14 +0200, Frederic Barrat wrote:
>
>
> On 16/07/2021 10:27, Leonardo Bras wrote:
> > There are two functions creating direct_window_list entries in a
> > similar way, so create a ddw_list_new_entry() to avoid duplicity
> > and
> > simplify those functions.
> >
> >
On Mon, 2021-07-19 at 16:04 +0200, Frederic Barrat wrote:
>
>
> On 16/07/2021 10:27, Leonardo Bras wrote:
> > Creates a helper to allow allocating a new iommu_table without the
> > need
> > to reallocate the iommu_group.
> >
> > This will be helpful for replacing the iommu_table for the new DMA
On Mon, 2021-07-19 at 15:48 +0200, Frederic Barrat wrote:
>
>
> On 16/07/2021 10:27, Leonardo Bras wrote:
> > Some functions assume IOMMU page size can only be 4K (pageshift ==
> > 12).
> > Update them to accept any page size passed, so we can use 64K
> > pages.
> >
> > In the process, some
On Wed, 2021-07-14 at 18:38 +1000, Alexey Kardashevskiy wrote:
> > for (i = 0; i <
> > > > ARRAY_SIZE(pci->phb->mem_resources);
> > > > i++) {
> > > > + const unsigned long mask =
> > > > IORESOURCE_MEM_64
> > > > > IORESOURCE_MEM;
> > > > +
> > > > +
On Wed, 2021-07-14 at 18:32 +1000, Alexey Kardashevskiy wrote:
>
>
> On 13/07/2021 14:47, Leonardo Brás wrote:
> > Hello Alexey,
> >
> > On Fri, 2021-06-18 at 19:26 -0300, Leonardo Brás wrote:
> > > >
> > > > > +
Hello Alexey,
On Fri, 2021-06-18 at 19:26 -0300, Leonardo Brás wrote:
> >
> > > + unsigned long liobn,
> > > unsigned long win_addr,
> > > + unsigned long
> > > w
On Tue, 2021-05-11 at 17:57 +1000, Alexey Kardashevskiy wrote:
>
>
> On 01/05/2021 02:31, Leonardo Bras wrote:
> > [...]
> > pmem_present = dn != NULL;
> > @@ -1218,8 +1224,12 @@ static bool enable_ddw(struct pci_dev *dev,
> > struct device_node *pdn)
> >
> >
Hello Alexey, thanks for this feedback!
On Mon, 2021-05-10 at 17:34 +1000, Alexey Kardashevskiy wrote:
>
>
> This does not apply anymore as it conflicts with my 4be518d838809e2135.
ok, rebasing on top of torvalds/master
>
>
> > ---
> > arch/powerpc/platforms/pseries/iommu.c | 100
On Wed, 2021-06-09 at 14:40 +1000, David Gibson wrote:
> On Tue, Jun 08, 2021 at 09:52:10PM -0300, Leonardo Brás wrote:
> > On Mon, 2021-06-07 at 15:02 +1000, David Gibson wrote:
> > > On Fri, Apr 30, 2021 at 11:36:06AM -0300, Leonardo Bras wrote:
> > > > Because
On Mon, 2021-06-07 at 15:20 +1000, David Gibson wrote:
> On Fri, Apr 30, 2021 at 11:36:10AM -0300, Leonardo Bras wrote:
> > During memory hotunplug, after each LMB is removed, the HPT may be
> > resized-down if it would map a max of 4 times the current amount of
> > memory.
> > (2 shifts, due to
On Mon, 2021-06-07 at 15:10 +1000, David Gibson wrote:
> On Fri, Apr 30, 2021 at 11:36:08AM -0300, Leonardo Bras wrote:
> > Every time a memory hotplug happens, and the memory limit crosses a
> > 2^n
> > value, it may be necessary to perform HPT resizing-up, which can
> > take
> > some time (over
On Mon, 2021-06-07 at 15:02 +1000, David Gibson wrote:
> On Fri, Apr 30, 2021 at 11:36:06AM -0300, Leonardo Bras wrote:
> > Because hypervisors may need to create HPTs without knowing the
> > guest
> > page size, the smallest used page-size (4k) may be chosen,
> > resulting in
> > a HPT that is
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