RE: [PATCH] PCI: dwc: Change size to u64 for EP outbound iATU

From: Shradha Todi
Date: Thu Dec 24 2020 - 01:05:02 EST


> From: Bjorn Helgaas <helgaas@xxxxxxxxxx>
> Subject: Re: [PATCH] PCI: dwc: Change size to u64 for EP outbound iATU
>
> On Fri, Dec 18, 2020 at 09:04:08PM +0530, Shradha Todi wrote:
> > Since outbound iATU permits size to be greater than 4GB for which the
> > support is also available, allow EP function to send u64 size instead
> > of truncating to u32.
>
> Please wrap your commit messages so they use more of an 80-column window.
> I use "set textwidth=75" for vim to account for git log indenting by 4
characters.
>
> I know 80 isn't a magic width, but it's the convention in drivers/pci.
>
> This also affects other patches from you, e.g., "PCI: dwc: Add upper limit
> address for outbound iATU".
>

Thanks for the review and suggestion. I will take care of this for all my
patches
in next version.

> > Signed-off-by: Shradha Todi <shradha.t@xxxxxxxxxxx>
> > ---
> > drivers/pci/controller/dwc/pcie-designware.c | 2 +-
> > drivers/pci/controller/dwc/pcie-designware.h | 2 +-
> > 2 files changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/pci/controller/dwc/pcie-designware.c
> > b/drivers/pci/controller/dwc/pcie-designware.c
> > index 7eba3b2..6298212 100644
> > --- a/drivers/pci/controller/dwc/pcie-designware.c
> > +++ b/drivers/pci/controller/dwc/pcie-designware.c
> > @@ -325,7 +325,7 @@ void dw_pcie_prog_outbound_atu(struct dw_pcie
> > *pci, int index, int type,
> >
> > void dw_pcie_prog_ep_outbound_atu(struct dw_pcie *pci, u8 func_no, int
> index,
> > int type, u64 cpu_addr, u64 pci_addr,
> > - u32 size)
> > + u64 size)
> > {
> > __dw_pcie_prog_outbound_atu(pci, func_no, index, type,
> > cpu_addr, pci_addr, size);
> > diff --git a/drivers/pci/controller/dwc/pcie-designware.h
> > b/drivers/pci/controller/dwc/pcie-designware.h
> > index 28b72fb..bb33f28 100644
> > --- a/drivers/pci/controller/dwc/pcie-designware.h
> > +++ b/drivers/pci/controller/dwc/pcie-designware.h
> > @@ -307,7 +307,7 @@ void dw_pcie_prog_outbound_atu(struct dw_pcie *pci,
> int index,
> > u64 size);
> > void dw_pcie_prog_ep_outbound_atu(struct dw_pcie *pci, u8 func_no, int
> index,
> > int type, u64 cpu_addr, u64 pci_addr,
> > - u32 size);
> > + u64 size);
> > int dw_pcie_prog_inbound_atu(struct dw_pcie *pci, u8 func_no, int
index,
> > int bar, u64 cpu_addr,
> > enum dw_pcie_as_type as_type);
> > --
> > 2.7.4
> >