lkml.org 
[lkml]   [2018]   [Apr]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v5 09/12] PCI: endpoint: Make epc->ops->clear_bar()/pci_epc_clear_bar() take struct *epf_bar
On Thu, Mar 29, 2018 at 03:30:23PM +0530, Kishon Vijay Abraham I wrote:
> Hi Niklas,
>
> On Wednesday 28 March 2018 05:20 PM, Niklas Cassel wrote:
> > Make epc->ops->clear_bar()/pci_epc_clear_bar() take struct *epf_bar.
> >
> > This is needed so that epc->ops->clear_bar() can clear the BAR pair,
> > if the BAR is 64-bits wide.
> >
> > This also makes it possible for pci_epc_clear_bar() to sanity check
> > the flags.
> >
> > Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
> > ---
> > drivers/pci/cadence/pcie-cadence-ep.c | 3 ++-
> > drivers/pci/dwc/pcie-designware-ep.c | 13 ++++++++++---
> > drivers/pci/endpoint/functions/pci-epf-test.c | 5 ++++-
> > drivers/pci/endpoint/pci-epc-core.c | 7 ++++---
> > include/linux/pci-epc.h | 5 +++--
> > 5 files changed, 23 insertions(+), 10 deletions(-)
> >
> > diff --git a/drivers/pci/cadence/pcie-cadence-ep.c b/drivers/pci/cadence/pcie-cadence-ep.c
> > index 2905e098678c..3d8283e450a9 100644
> > --- a/drivers/pci/cadence/pcie-cadence-ep.c
> > +++ b/drivers/pci/cadence/pcie-cadence-ep.c
> > @@ -145,10 +145,11 @@ static int cdns_pcie_ep_set_bar(struct pci_epc *epc, u8 fn,
> > }
> >
> > static void cdns_pcie_ep_clear_bar(struct pci_epc *epc, u8 fn,
> > - enum pci_barno bar)
> > + struct pci_epf_bar *epf_bar)
> > {
> > struct cdns_pcie_ep *ep = epc_get_drvdata(epc);
> > struct cdns_pcie *pcie = &ep->pcie;
> > + enum pci_barno bar = epf_bar->barno;
> > u32 reg, cfg, b, ctrl;
> >
> > if (bar < BAR_4) {
> > diff --git a/drivers/pci/dwc/pcie-designware-ep.c b/drivers/pci/dwc/pcie-designware-ep.c
> > index 571b90f88d84..cc4d8381c1dc 100644
> > --- a/drivers/pci/dwc/pcie-designware-ep.c
> > +++ b/drivers/pci/dwc/pcie-designware-ep.c
> > @@ -19,7 +19,8 @@ void dw_pcie_ep_linkup(struct dw_pcie_ep *ep)
> > pci_epc_linkup(epc);
> > }
> >
> > -void dw_pcie_ep_reset_bar(struct dw_pcie *pci, enum pci_barno bar)
> > +static void __dw_pcie_ep_reset_bar(struct dw_pcie *pci, enum pci_barno bar,
> > + int flags)
>
> Looks like the 'flags' are not used anywhere here?

Hello Kishon,

That is correct, this patch is simply refactoring, flags is first used
in patch 11/12, since I didn't want to refactor + add new code in the
same commit.

Kind regards,
Niklas

\
 
 \ /
  Last update: 2018-04-02 20:57    [W:0.075 / U:1.584 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site