The number of inbound and outbound windows are defined by the h/w and
apply to both RC and EP modes, so move them to the appropriate struct.
Cc: Jingoo Han <jingoohan1@xxxxxxxxx>
Cc: Gustavo Pimentel <gustavo.pimentel@xxxxxxxxxxxx>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
---
v2:
- new patch
.../pci/controller/dwc/pcie-designware-ep.c | 25 ++++++++++---------
drivers/pci/controller/dwc/pcie-designware.h | 4 +--
2 files changed, 15 insertions(+), 14 deletions(-)
diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index 6fe176e1bdd2..79b998982e41 100644
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -161,8 +161,8 @@ static int dw_pcie_ep_inbound_atu(struct dw_pcie_ep *ep, u8 func_no,
u32 free_win;
struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
- free_win = find_first_zero_bit(ep->ib_window_map, ep->num_ib_windows);
- if (free_win >= ep->num_ib_windows) {
+ free_win = find_first_zero_bit(ep->ib_window_map, pci->num_ib_windows);
+ if (free_win >= pci->num_ib_windows) {
dev_err(pci->dev, "No free inbound window\n");
return -EINVAL;
}
@@ -187,8 +187,8 @@ static int dw_pcie_ep_outbound_atu(struct dw_pcie_ep *ep, u8 func_no,
u32 free_win;
struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
- free_win = find_first_zero_bit(ep->ob_window_map, ep->num_ob_windows);
- if (free_win >= ep->num_ob_windows) {
+ free_win = find_first_zero_bit(ep->ob_window_map, pci->num_ob_windows);
+ if (free_win >= pci->num_ob_windows) {
dev_err(pci->dev, "No free outbound window\n");
return -EINVAL;
}
@@ -264,8 +264,9 @@ static int dw_pcie_find_index(struct dw_pcie_ep *ep, phys_addr_t addr,
u32 *atu_index)
{
u32 index;
+ struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
- for (index = 0; index < ep->num_ob_windows; index++) {
+ for (index = 0; index < pci->num_ob_windows; index++) {
if (ep->outbound_addr[index] != addr)
continue;
*atu_index = index;
@@ -713,41 +714,41 @@ int dw_pcie_ep_init(struct dw_pcie_ep *ep)
ep->phys_base = res->start;
ep->addr_size = resource_size(res);
- ret = of_property_read_u32(np, "num-ib-windows", &ep->num_ib_windows);
+ ret = of_property_read_u32(np, "num-ib-windows", &pci->num_ib_windows);
if (ret < 0) {
dev_err(dev, "Unable to read *num-ib-windows* property\n");
return ret;
}
- if (ep->num_ib_windows > MAX_IATU_IN) {
+ if (pci->num_ib_windows > MAX_IATU_IN) {
dev_err(dev, "Invalid *num-ib-windows*\n");
return -EINVAL;
}
- ret = of_property_read_u32(np, "num-ob-windows", &ep->num_ob_windows);
+ ret = of_property_read_u32(np, "num-ob-windows", &pci->num_ob_windows);
if (ret < 0) {
dev_err(dev, "Unable to read *num-ob-windows* property\n");
return ret;
}
- if (ep->num_ob_windows > MAX_IATU_OUT) {
+ if (pci->num_ob_windows > MAX_IATU_OUT) {
dev_err(dev, "Invalid *num-ob-windows*\n");
return -EINVAL;
}
ep->ib_window_map = devm_kcalloc(dev,
- BITS_TO_LONGS(ep->num_ib_windows),
+ BITS_TO_LONGS(pci->num_ib_windows),
sizeof(long),
GFP_KERNEL);
if (!ep->ib_window_map)
return -ENOMEM;
ep->ob_window_map = devm_kcalloc(dev,
- BITS_TO_LONGS(ep->num_ob_windows),
+ BITS_TO_LONGS(pci->num_ob_windows),
sizeof(long),
GFP_KERNEL);
if (!ep->ob_window_map)
return -ENOMEM;
- addr = devm_kcalloc(dev, ep->num_ob_windows, sizeof(phys_addr_t),
+ addr = devm_kcalloc(dev, pci->num_ob_windows, sizeof(phys_addr_t),
GFP_KERNEL);
if (!addr)
return -ENOMEM;
diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
index 57326aebc6e1..e4f964e6cabe 100644
--- a/drivers/pci/controller/dwc/pcie-designware.h
+++ b/drivers/pci/controller/dwc/pcie-designware.h
@@ -236,8 +236,6 @@ struct dw_pcie_ep {
phys_addr_t *outbound_addr;
unsigned long *ib_window_map;
unsigned long *ob_window_map;
- u32 num_ib_windows;
- u32 num_ob_windows;
void __iomem *msi_mem;
phys_addr_t msi_mem_phys;
struct pci_epf_bar *epf_bar[PCI_STD_NUM_BARS];
@@ -263,6 +261,8 @@ struct dw_pcie {
/* Used when iatu_unroll_enabled is true */
void __iomem *atu_base;
u32 num_viewport;
+ u32 num_ib_windows;
+ u32 num_ob_windows;
struct pcie_port pp;
struct dw_pcie_ep ep;
const struct dw_pcie_ops *ops;
--
2.25.1
