As we move towards supporting SoCs with varying RID-to-SID mapping
capabilities, turn the static SID tracking bitmap into a dynamically
allocated one. The current allocation size is still the same, but
that's about to change.
Reviewed-by: Rob Herring (Arm) <robh@xxxxxxxxxx>
Acked-by: Alyssa Rosenzweig <alyssa@xxxxxxxxxxxxx>
Tested-by: Janne Grunau <j@xxxxxxxxxx>
Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
---
drivers/pci/controller/pcie-apple.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/controller/pcie-apple.c b/drivers/pci/controller/pcie-apple.c
index d07e488051290..6d3aa186d9c5f 100644
--- a/drivers/pci/controller/pcie-apple.c
+++ b/drivers/pci/controller/pcie-apple.c
@@ -147,7 +147,7 @@ struct apple_pcie_port {
void __iomem *base;
struct irq_domain *domain;
struct list_head entry;
- DECLARE_BITMAP(sid_map, MAX_RID2SID);
+ unsigned long *sid_map;
int sid_map_sz;
int idx;
};
@@ -524,6 +524,10 @@ static int apple_pcie_setup_port(struct apple_pcie *pcie,
if (!port)
return -ENOMEM;
+ port->sid_map = devm_bitmap_zalloc(pcie->dev, MAX_RID2SID, GFP_KERNEL);
+ if (!port->sid_map)
+ return -ENOMEM;
+
ret = of_property_read_u32_index(np, "reg", 0, &idx);
if (ret)
return ret;
--
2.39.2
