summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorLad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>2020-05-07 15:33:15 +0300
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2020-05-11 13:29:48 +0300
commit975cf23e3aa89588cbfc9ad6f2b23bd32af4edc7 (patch)
tree27c03fb4c227dfeeda0ab9eb67fc4ca234a71d50
parent328263687148bebf0d5daf5d06bcc2a46f3d7b0a (diff)
downloadlinux-975cf23e3aa89588cbfc9ad6f2b23bd32af4edc7.tar.xz
PCI: endpoint: Pass page size as argument to pci_epc_mem_init()
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. Link: https://lore.kernel.org/r/1588854799-13710-5-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
-rw-r--r--drivers/pci/controller/cadence/pcie-cadence-ep.c2
-rw-r--r--drivers/pci/controller/pcie-rockchip-ep.c2
-rw-r--r--drivers/pci/endpoint/pci-epc-mem.c7
-rw-r--r--include/linux/pci-epc.h5
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);