[v9,4/8] PCI: endpoint: Pass page size as argument to pci_epc_mem_init()
diff mbox series

Message ID 1587666159-6035-5-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com
State New
Headers show
Series
  • Add endpoint driver for R-Car PCIe controller
Related show

Commit Message

Lad Prabhakar April 23, 2020, 6:22 p.m. UTC
pci_epc_mem_init() internally used page size equal to *PAGE_SIZE* to
manage the address space so instead just pass the page size as a
argument to pci_epc_mem_init().

Also make pci_epc_mem_init() as a C function instead of a macro function
in preparation for adding support for pci-epc-mem core to handle multiple
windows.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 drivers/pci/controller/cadence/pcie-cadence-ep.c | 2 +-
 drivers/pci/controller/pcie-rockchip-ep.c        | 2 +-
 drivers/pci/endpoint/pci-epc-mem.c               | 7 +++++++
 include/linux/pci-epc.h                          | 5 ++---
 4 files changed, 11 insertions(+), 5 deletions(-)

Comments

Yoshihiro Shimoda April 24, 2020, 5:59 a.m. UTC | #1
Hi Prabhakar-san,

> From: Lad Prabhakar, Sent: Friday, April 24, 2020 3:23 AM
> 
> pci_epc_mem_init() internally used page size equal to *PAGE_SIZE* to
> manage the address space so instead just pass the page size as a
> argument to pci_epc_mem_init().
> 
> Also make pci_epc_mem_init() as a C function instead of a macro function
> in preparation for adding support for pci-epc-mem core to handle multiple
> windows.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Thank you for the patch!

Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>

Best regards,
Yoshihiro Shimoda
Kishon Vijay Abraham I May 7, 2020, 2:52 a.m. UTC | #2
On 4/23/2020 11:52 PM, Lad Prabhakar wrote:
> pci_epc_mem_init() internally used page size equal to *PAGE_SIZE* to
> manage the address space so instead just pass the page size as a
> argument to pci_epc_mem_init().
> 
> Also make pci_epc_mem_init() as a C function instead of a macro function
> in preparation for adding support for pci-epc-mem core to handle multiple
> windows.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
> ---
>  drivers/pci/controller/cadence/pcie-cadence-ep.c | 2 +-
>  drivers/pci/controller/pcie-rockchip-ep.c        | 2 +-
>  drivers/pci/endpoint/pci-epc-mem.c               | 7 +++++++
>  include/linux/pci-epc.h                          | 5 ++---
>  4 files changed, 11 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/pci/controller/cadence/pcie-cadence-ep.c b/drivers/pci/controller/cadence/pcie-cadence-ep.c
> index 1c173dad67d1..1c15c8352125 100644
> --- a/drivers/pci/controller/cadence/pcie-cadence-ep.c
> +++ b/drivers/pci/controller/cadence/pcie-cadence-ep.c
> @@ -450,7 +450,7 @@ int cdns_pcie_ep_setup(struct cdns_pcie_ep *ep)
>  		epc->max_functions = 1;
>  
>  	ret = pci_epc_mem_init(epc, pcie->mem_res->start,
> -			       resource_size(pcie->mem_res));
> +			       resource_size(pcie->mem_res), PAGE_SIZE);
>  	if (ret < 0) {
>  		dev_err(dev, "failed to initialize the memory space\n");
>  		goto err_init;
> diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c
> index d743b0a48988..5eaf36629a75 100644
> --- a/drivers/pci/controller/pcie-rockchip-ep.c
> +++ b/drivers/pci/controller/pcie-rockchip-ep.c
> @@ -615,7 +615,7 @@ static int rockchip_pcie_ep_probe(struct platform_device *pdev)
>  	rockchip_pcie_write(rockchip, BIT(0), PCIE_CORE_PHY_FUNC_CFG);
>  
>  	err = pci_epc_mem_init(epc, rockchip->mem_res->start,
> -			       resource_size(rockchip->mem_res));
> +			       resource_size(rockchip->mem_res), PAGE_SIZE);
>  	if (err < 0) {
>  		dev_err(dev, "failed to initialize the memory space\n");
>  		goto err_uninit_port;
> diff --git a/drivers/pci/endpoint/pci-epc-mem.c b/drivers/pci/endpoint/pci-epc-mem.c
> index abfac1109a13..cdd1d3821249 100644
> --- a/drivers/pci/endpoint/pci-epc-mem.c
> +++ b/drivers/pci/endpoint/pci-epc-mem.c
> @@ -93,6 +93,13 @@ return ret;
>  }
>  EXPORT_SYMBOL_GPL(__pci_epc_mem_init);
>  
> +int pci_epc_mem_init(struct pci_epc *epc, phys_addr_t base,
> +		     size_t size, size_t page_size)
> +{
> +	return __pci_epc_mem_init(epc, base, size, page_size);
> +}
> +EXPORT_SYMBOL_GPL(pci_epc_mem_init);
> +
>  /**
>   * pci_epc_mem_exit() - cleanup the pci_epc_mem structure
>   * @epc: the EPC device that invoked pci_epc_mem_exit
> diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h
> index e0ed9d01f6e5..5bc1de65849e 100644
> --- a/include/linux/pci-epc.h
> +++ b/include/linux/pci-epc.h
> @@ -137,9 +137,6 @@ struct pci_epc_features {
>  #define devm_pci_epc_create(dev, ops)    \
>  		__devm_pci_epc_create((dev), (ops), THIS_MODULE)
>  
> -#define pci_epc_mem_init(epc, phys_addr, size)	\
> -		__pci_epc_mem_init((epc), (phys_addr), (size), PAGE_SIZE)
> -
>  static inline void epc_set_drvdata(struct pci_epc *epc, void *data)
>  {
>  	dev_set_drvdata(&epc->dev, data);
> @@ -195,6 +192,8 @@ unsigned int pci_epc_get_first_free_bar(const struct pci_epc_features
>  struct pci_epc *pci_epc_get(const char *epc_name);
>  void pci_epc_put(struct pci_epc *epc);
>  
> +int pci_epc_mem_init(struct pci_epc *epc, phys_addr_t base,
> +		     size_t size, size_t page_size);
>  int __pci_epc_mem_init(struct pci_epc *epc, phys_addr_t phys_addr, size_t size,
>  		       size_t page_size);
>  void pci_epc_mem_exit(struct pci_epc *epc);
>

Patch
diff mbox series

diff --git a/drivers/pci/controller/cadence/pcie-cadence-ep.c b/drivers/pci/controller/cadence/pcie-cadence-ep.c
index 1c173dad67d1..1c15c8352125 100644
--- a/drivers/pci/controller/cadence/pcie-cadence-ep.c
+++ b/drivers/pci/controller/cadence/pcie-cadence-ep.c
@@ -450,7 +450,7 @@  int cdns_pcie_ep_setup(struct cdns_pcie_ep *ep)
 		epc->max_functions = 1;
 
 	ret = pci_epc_mem_init(epc, pcie->mem_res->start,
-			       resource_size(pcie->mem_res));
+			       resource_size(pcie->mem_res), PAGE_SIZE);
 	if (ret < 0) {
 		dev_err(dev, "failed to initialize the memory space\n");
 		goto err_init;
diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c
index d743b0a48988..5eaf36629a75 100644
--- a/drivers/pci/controller/pcie-rockchip-ep.c
+++ b/drivers/pci/controller/pcie-rockchip-ep.c
@@ -615,7 +615,7 @@  static int rockchip_pcie_ep_probe(struct platform_device *pdev)
 	rockchip_pcie_write(rockchip, BIT(0), PCIE_CORE_PHY_FUNC_CFG);
 
 	err = pci_epc_mem_init(epc, rockchip->mem_res->start,
-			       resource_size(rockchip->mem_res));
+			       resource_size(rockchip->mem_res), PAGE_SIZE);
 	if (err < 0) {
 		dev_err(dev, "failed to initialize the memory space\n");
 		goto err_uninit_port;
diff --git a/drivers/pci/endpoint/pci-epc-mem.c b/drivers/pci/endpoint/pci-epc-mem.c
index abfac1109a13..cdd1d3821249 100644
--- a/drivers/pci/endpoint/pci-epc-mem.c
+++ b/drivers/pci/endpoint/pci-epc-mem.c
@@ -93,6 +93,13 @@  return ret;
 }
 EXPORT_SYMBOL_GPL(__pci_epc_mem_init);
 
+int pci_epc_mem_init(struct pci_epc *epc, phys_addr_t base,
+		     size_t size, size_t page_size)
+{
+	return __pci_epc_mem_init(epc, base, size, page_size);
+}
+EXPORT_SYMBOL_GPL(pci_epc_mem_init);
+
 /**
  * pci_epc_mem_exit() - cleanup the pci_epc_mem structure
  * @epc: the EPC device that invoked pci_epc_mem_exit
diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h
index e0ed9d01f6e5..5bc1de65849e 100644
--- a/include/linux/pci-epc.h
+++ b/include/linux/pci-epc.h
@@ -137,9 +137,6 @@  struct pci_epc_features {
 #define devm_pci_epc_create(dev, ops)    \
 		__devm_pci_epc_create((dev), (ops), THIS_MODULE)
 
-#define pci_epc_mem_init(epc, phys_addr, size)	\
-		__pci_epc_mem_init((epc), (phys_addr), (size), PAGE_SIZE)
-
 static inline void epc_set_drvdata(struct pci_epc *epc, void *data)
 {
 	dev_set_drvdata(&epc->dev, data);
@@ -195,6 +192,8 @@  unsigned int pci_epc_get_first_free_bar(const struct pci_epc_features
 struct pci_epc *pci_epc_get(const char *epc_name);
 void pci_epc_put(struct pci_epc *epc);
 
+int pci_epc_mem_init(struct pci_epc *epc, phys_addr_t base,
+		     size_t size, size_t page_size);
 int __pci_epc_mem_init(struct pci_epc *epc, phys_addr_t phys_addr, size_t size,
 		       size_t page_size);
 void pci_epc_mem_exit(struct pci_epc *epc);