Re: [PATCH v4] iommu/tegra-smmu: Add pagetable mappings to debugfs

2021-03-15 Thread Nicolin Chen
On Mon, Mar 15, 2021 at 09:53:09PM +0300, Dmitry Osipenko wrote:
> 15.03.2021 06:35, Nicolin Chen пишет:
> > This patch dumps all active mapping entries from pagetable
> > to a debugfs directory named "mappings".
> > 
> > Ataching an example:
> 
> Attaching
> 
> > 
> > SWGROUP: hc
> > ASID: 0
> > reg: 0x250
> > PTB_ASID: 0xe0080004
> > as->pd_dma: 0x80004000
> > {
> > [1023] 0xf008000b (1)
> > {
> > PTE RANGE  | ATTR | PHYS   | IOVA   
> > | SIZE
> > [#1023, #1023] | 0x5  | 0x000111a8d000 | 
> > 0xf000 | 0x1000
> > }
> > }
> > Total PDE count: 1
> > Total PTE count: 1
> > 
> > Signed-off-by: Nicolin Chen 
> > ---
> 
> Good to me, thanks.
> 
> Tested-by: Dmitry Osipenko 
> Reviewed-by: Dmitry Osipenko 
> 
> > +   for (pd_index = 0; pd_index < SMMU_NUM_PDE; pd_index++) {
> > +   struct page *pt_page;
> > +   u32 *addr;
> > +   unsigned int i;
> 
> Unimportant nit: I'd keep lines arranged by length for consistency with
> the rest of the code.
> 
> ...
> > +   group_debug = devm_kcalloc(dev, soc->num_swgroups, 
> > sizeof(*group_debug), GFP_KERNEL);
> 
> Another nit: this is a long line, I'd split it into two lines to keep
> coding style consistent and to improve readability for those who have a
> side-by-side code viewing setup.

Sending v5. Will add your Tested-by and Reviewed-by since there'd
be no functional changes. Thanks!
___
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu

Re: [PATCH v4] iommu/tegra-smmu: Add pagetable mappings to debugfs

2021-03-15 Thread Dmitry Osipenko
15.03.2021 06:35, Nicolin Chen пишет:
> This patch dumps all active mapping entries from pagetable
> to a debugfs directory named "mappings".
> 
> Ataching an example:

Attaching

> 
> SWGROUP: hc
> ASID: 0
> reg: 0x250
> PTB_ASID: 0xe0080004
> as->pd_dma: 0x80004000
> {
> [1023] 0xf008000b (1)
> {
> PTE RANGE  | ATTR | PHYS   | IOVA 
>   | SIZE
> [#1023, #1023] | 0x5  | 0x000111a8d000 | 
> 0xf000 | 0x1000
> }
> }
> Total PDE count: 1
> Total PTE count: 1
> 
> Signed-off-by: Nicolin Chen 
> ---

Good to me, thanks.

Tested-by: Dmitry Osipenko 
Reviewed-by: Dmitry Osipenko 

> + for (pd_index = 0; pd_index < SMMU_NUM_PDE; pd_index++) {
> + struct page *pt_page;
> + u32 *addr;
> + unsigned int i;

Unimportant nit: I'd keep lines arranged by length for consistency with
the rest of the code.

...
> + group_debug = devm_kcalloc(dev, soc->num_swgroups, 
> sizeof(*group_debug), GFP_KERNEL);

Another nit: this is a long line, I'd split it into two lines to keep
coding style consistent and to improve readability for those who have a
side-by-side code viewing setup.
___
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu