Hi Lorenzo,
Thanks a lot for your comments!
> -----Original Message-----
> From: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
> Sent: 2018年12月6日 0:02
> To: Z.q. Hou <zhiqiang.hou@xxxxxxx>
> Cc: linux-pci@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
> bhelgaas@xxxxxxxxxx; jingoohan1@xxxxxxxxx;
> gustavo.pimentel@xxxxxxxxxxxx; Roy Zang <roy.zang@xxxxxxx>; Mingkai Hu
> <mingkai.hu@xxxxxxx>; M.h. Lian <minghuan.lian@xxxxxxx>
> Subject: Re: [PATCHv2 2/4] PCI: dwc: fix 4GiB outbound window size
> truncated to zero issue
>
> On Wed, Nov 07, 2018 at 10:09:10AM +0000, Z.q. Hou wrote:
> > From: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx>
> >
> > The current type of mem_size is 'u32', so when resource_size() return
> > 4G it will be truncated to zero. This patch fix it by changing its
> > type to 'u64'.
> >
> > Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx>
> > Acked-by: Gustavo Pimentel <gustavo.pimentel@xxxxxxxxxxxx>
> > ---
> > V2:
> > - Reworded the subject.
> >
> > drivers/pci/controller/dwc/pcie-designware.c | 4 ++--
> > drivers/pci/controller/dwc/pcie-designware.h | 4 ++--
> > 2 files changed, 4 insertions(+), 4 deletions(-)
>
> I would like to add a Fixes: tag.
>
> is
>
> edd45e396829 ("PCI: dwc: designware: Move _unroll configurations to a
> separate function")
>
> the commit you are fixing ?
Yes, will add the Fixes, and I think it fixes the original patch: 340cba6092c2 ("pci: Add PCIe driver for Samsung Exynos").
> Thanks,
> Lorenzo
>
> > diff --git a/drivers/pci/controller/dwc/pcie-designware.c
> > b/drivers/pci/controller/dwc/pcie-designware.c
> > index 2153956a0b20..7ac5989c23ef 100644
> > --- a/drivers/pci/controller/dwc/pcie-designware.c
> > +++ b/drivers/pci/controller/dwc/pcie-designware.c
> > @@ -106,7 +106,7 @@ static void dw_pcie_writel_ob_unroll(struct
> > dw_pcie *pci, u32 index, u32 reg,
> >
> > static void dw_pcie_prog_outbound_atu_unroll(struct dw_pcie *pci, int
> index,
> > int type, u64 cpu_addr,
> > - u64 pci_addr, u32 size)
> > + u64 pci_addr, u64 size)
> > {
> > u32 retries, val;
> >
> > @@ -141,7 +141,7 @@ static void
> > dw_pcie_prog_outbound_atu_unroll(struct dw_pcie *pci, int index, }
> >
> > void dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index, int type,
> > - u64 cpu_addr, u64 pci_addr, u32 size)
> > + u64 cpu_addr, u64 pci_addr, u64 size)
> > {
> > u32 retries, val;
> >
> > diff --git a/drivers/pci/controller/dwc/pcie-designware.h
> > b/drivers/pci/controller/dwc/pcie-designware.h
> > index 9f1a5e399b70..a438c3879aa9 100644
> > --- a/drivers/pci/controller/dwc/pcie-designware.h
> > +++ b/drivers/pci/controller/dwc/pcie-designware.h
> > @@ -153,7 +153,7 @@ struct pcie_port {
> > u32 io_size;
> > u64 mem_base;
> > phys_addr_t mem_bus_addr;
> > - u32 mem_size;
> > + u64 mem_size;
> > struct resource *cfg;
> > struct resource *io;
> > struct resource *mem;
> > @@ -238,7 +238,7 @@ int dw_pcie_link_up(struct dw_pcie *pci); int
> > dw_pcie_wait_for_link(struct dw_pcie *pci); void
> > dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index,
> > int type, u64 cpu_addr, u64 pci_addr,
> > - u32 size);
> > + u64 size);
> > int dw_pcie_prog_inbound_atu(struct dw_pcie *pci, int index, int bar,
> > u64 cpu_addr, enum dw_pcie_as_type as_type); void
> > dw_pcie_disable_atu(struct dw_pcie *pci, int index,
> > --
> > 2.17.1
> >
Thanks,
Zhiqiang
