linux-kernel - [PATCH v2] PCI: dwc: Change size to u64 for EP outbound iATU

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Date:   Wed,  6 Jan 2021 16:15:00 +0530
From:   Shradha Todi <shradha.t@...sung.com>
To:     linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Cc:     jingoohan1@...il.com, gustavo.pimentel@...opsys.com,
        robh@...nel.org, lorenzo.pieralisi@....com, bhelgaas@...gle.com,
        pankaj.dubey@...sung.com, sriram.dash@...sung.com,
        niyas.ahmed@...sung.com, p.rajanbabu@...sung.com,
        l.mehra@...sung.com, hari.tv@...sung.com,
        Shradha Todi <shradha.t@...sung.com>
Subject: [PATCH v2] PCI: dwc: Change size to u64 for EP outbound iATU

Since outbound iATU permits size to be greater than 4GB for which the
support is also available, allow EP function to send u64 size instead of
truncating to u32.

Signed-off-by: Shradha Todi <shradha.t@...sung.com>
---
v1: https://lkml.org/lkml/2020/12/18/690
v2:
   Addressed Bjorn's review on to keep commit message length limit to 75

 drivers/pci/controller/dwc/pcie-designware.c | 2 +-
 drivers/pci/controller/dwc/pcie-designware.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c
index 1d62ca9..db407ed 100644
--- a/drivers/pci/controller/dwc/pcie-designware.c
+++ b/drivers/pci/controller/dwc/pcie-designware.c
@@ -326,7 +326,7 @@ void dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index, int type,
 
 void dw_pcie_prog_ep_outbound_atu(struct dw_pcie *pci, u8 func_no, int index,
 				  int type, u64 cpu_addr, u64 pci_addr,
-				  u32 size)
+				  u64 size)
 {
 	__dw_pcie_prog_outbound_atu(pci, func_no, index, type,
 				    cpu_addr, pci_addr, size);
diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
index 7da79eb..359151f 100644
--- a/drivers/pci/controller/dwc/pcie-designware.h
+++ b/drivers/pci/controller/dwc/pcie-designware.h
@@ -302,7 +302,7 @@ void dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index,
 			       u64 size);
 void dw_pcie_prog_ep_outbound_atu(struct dw_pcie *pci, u8 func_no, int index,
 				  int type, u64 cpu_addr, u64 pci_addr,
-				  u32 size);
+				  u64 size);
 int dw_pcie_prog_inbound_atu(struct dw_pcie *pci, u8 func_no, int index,
 			     int bar, u64 cpu_addr,
 			     enum dw_pcie_as_type as_type);
-- 
2.7.4