Re: [PATCH v13 08/22] PCI: dwc: Change arguments of dw_pcie_prog_ep_outbound_atu()

[Manivannan Sadhasivam <mani@kernel.org>]

On Tue, Apr 18, 2023 at 09:23:49PM +0900, Yoshihiro Shimoda wrote:
> To use "code" and "routing" parameters on an outbound iATU,
> change arguments of dw_pcie_prog_ep_outbound_atu(). No behavior changes.
> 

Ok, you are using the struct here but it could've been done in 6/22.

- Mani

> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
> ---
>  .../pci/controller/dwc/pcie-designware-ep.c   | 21 ++++++++++++-------
>  drivers/pci/controller/dwc/pcie-designware.c  | 15 +++----------
>  drivers/pci/controller/dwc/pcie-designware.h  |  4 ++--
>  3 files changed, 18 insertions(+), 22 deletions(-)
> 
> diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
> index a80b9fd03638..96375b0aba82 100644
> --- a/drivers/pci/controller/dwc/pcie-designware-ep.c
> +++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
> @@ -183,9 +183,8 @@ static int dw_pcie_ep_inbound_atu(struct dw_pcie_ep *ep, u8 func_no, int type,
>  	return 0;
>  }
>  
> -static int dw_pcie_ep_outbound_atu(struct dw_pcie_ep *ep, u8 func_no,
> -				   phys_addr_t phys_addr,
> -				   u64 pci_addr, size_t size)
> +static int dw_pcie_ep_outbound_atu(struct dw_pcie_ep *ep,
> +				   struct dw_pcie_outbound_atu *atu)
>  {
>  	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
>  	u32 free_win;
> @@ -197,13 +196,13 @@ static int dw_pcie_ep_outbound_atu(struct dw_pcie_ep *ep, u8 func_no,
>  		return -EINVAL;
>  	}
>  
> -	ret = dw_pcie_prog_ep_outbound_atu(pci, func_no, free_win, PCIE_ATU_TYPE_MEM,
> -					   phys_addr, pci_addr, size);
> +	atu->index = free_win;
> +	ret = dw_pcie_prog_ep_outbound_atu(pci, atu);
>  	if (ret)
>  		return ret;
>  
>  	set_bit(free_win, ep->ob_window_map);
> -	ep->outbound_addr[free_win] = phys_addr;
> +	ep->outbound_addr[free_win] = atu->cpu_addr;
>  
>  	return 0;
>  }
> @@ -306,8 +305,14 @@ static int dw_pcie_ep_map_addr(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
>  	int ret;
>  	struct dw_pcie_ep *ep = epc_get_drvdata(epc);
>  	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
> -
> -	ret = dw_pcie_ep_outbound_atu(ep, func_no, addr, pci_addr, size);
> +	struct dw_pcie_outbound_atu atu = { 0 };
> +
> +	atu.func_no = func_no;
> +	atu.type = PCIE_ATU_TYPE_MEM;
> +	atu.cpu_addr = addr;
> +	atu.pci_addr = pci_addr;
> +	atu.size = size;
> +	ret = dw_pcie_ep_outbound_atu(ep, &atu);
>  	if (ret) {
>  		dev_err(pci->dev, "Failed to enable address\n");
>  		return ret;
> diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c
> index 60e6522f0762..e8d4d5bde2d3 100644
> --- a/drivers/pci/controller/dwc/pcie-designware.c
> +++ b/drivers/pci/controller/dwc/pcie-designware.c
> @@ -540,19 +540,10 @@ int dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index, int type,
>  	return __dw_pcie_prog_outbound_atu(pci, &atu);
>  }
>  
> -int dw_pcie_prog_ep_outbound_atu(struct dw_pcie *pci, u8 func_no, int index,
> -				 int type, u64 cpu_addr, u64 pci_addr,
> -				 u64 size)
> +int dw_pcie_prog_ep_outbound_atu(struct dw_pcie *pci,
> +				 struct dw_pcie_outbound_atu *atu)
>  {
> -	struct dw_pcie_outbound_atu atu = { 0 };
> -
> -	atu.func_no = func_no;
> -	atu.index = index;
> -	atu.type = type;
> -	atu.cpu_addr = cpu_addr;
> -	atu.pci_addr = pci_addr;
> -	atu.size = size;
> -	return __dw_pcie_prog_outbound_atu(pci, &atu);
> +	return __dw_pcie_prog_outbound_atu(pci, atu);
>  }
>  
>  static inline u32 dw_pcie_readl_atu_ib(struct dw_pcie *pci, u32 index, u32 reg)
> diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
> index 20a107c2e543..954d504890a1 100644
> --- a/drivers/pci/controller/dwc/pcie-designware.h
> +++ b/drivers/pci/controller/dwc/pcie-designware.h
> @@ -435,8 +435,8 @@ void dw_pcie_upconfig_setup(struct dw_pcie *pci);
>  int dw_pcie_wait_for_link(struct dw_pcie *pci);
>  int dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index, int type,
>  			      u64 cpu_addr, u64 pci_addr, u64 size);
> -int dw_pcie_prog_ep_outbound_atu(struct dw_pcie *pci, u8 func_no, int index,
> -				 int type, u64 cpu_addr, u64 pci_addr, u64 size);
> +int dw_pcie_prog_ep_outbound_atu(struct dw_pcie *pci,
> +				 struct dw_pcie_outbound_atu *atu);
>  int dw_pcie_prog_inbound_atu(struct dw_pcie *pci, int index, int type,
>  			     u64 cpu_addr, u64 pci_addr, u64 size);
>  int dw_pcie_prog_ep_inbound_atu(struct dw_pcie *pci, u8 func_no, int index,
> -- 
> 2.25.1
> 

-- 
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