From 4f276288617d4eca0b720e11ca6da68cc27c7cde Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Thu, 6 Oct 2016 13:29:02 -0500 Subject: [PATCH] PCI: altera: Simplify TLP_CFG_DW1 usage TLP_CFG_DW1() was only used with altera->root_bus_nr and RP_DEVFN, so encode that directly into the macro so we don't have to clutter the uses with the TLP_REQ_ID() usage. No functional change intended. Signed-off-by: Bjorn Helgaas --- drivers/pci/host/pcie-altera.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/pci/host/pcie-altera.c b/drivers/pci/host/pcie-altera.c index 824013077c1e..b0ac4dfafa0b 100644 --- a/drivers/pci/host/pcie-altera.c +++ b/drivers/pci/host/pcie-altera.c @@ -55,18 +55,19 @@ #define TLP_PAYLOAD_SIZE 0x01 #define TLP_READ_TAG 0x1d #define TLP_WRITE_TAG 0x10 +#define RP_DEVFN 0 +#define TLP_REQ_ID(bus, devfn) (((bus) << 8) | (devfn)) #define TLP_CFG_DW0(pcie, bus) \ ((((bus == pcie->root_bus_nr) ? TLP_FMTTYPE_CFGRD0 \ : TLP_FMTTYPE_CFGRD1) << 24) | \ TLP_PAYLOAD_SIZE) -#define TLP_CFG_DW1(reqid, tag, be) (((reqid) << 16) | (tag << 8) | (be)) +#define TLP_CFG_DW1(pcie, tag, be) \ + (((TLP_REQ_ID(pcie->root_bus_nr, RP_DEVFN)) << 16) | (tag << 8) | (be)) #define TLP_CFG_DW2(bus, devfn, offset) \ (((bus) << 24) | ((devfn) << 16) | (offset)) -#define TLP_REQ_ID(bus, devfn) (((bus) << 8) | (devfn)) #define TLP_COMP_STATUS(s) (((s) >> 12) & 7) #define TLP_HDR_SIZE 3 #define TLP_LOOP 500 -#define RP_DEVFN 0 #define LINK_UP_TIMEOUT HZ #define LINK_RETRAIN_TIMEOUT HZ @@ -222,8 +223,7 @@ static int tlp_cfg_dword_read(struct altera_pcie *pcie, u8 bus, u32 devfn, u32 headers[TLP_HDR_SIZE]; headers[0] = TLP_CFG_DW0(pcie, bus); - headers[1] = TLP_CFG_DW1(TLP_REQ_ID(pcie->root_bus_nr, RP_DEVFN), - TLP_READ_TAG, byte_en); + headers[1] = TLP_CFG_DW1(pcie, TLP_READ_TAG, byte_en); headers[2] = TLP_CFG_DW2(bus, devfn, where); tlp_write_packet(pcie, headers, 0, false); @@ -238,8 +238,7 @@ static int tlp_cfg_dword_write(struct altera_pcie *pcie, u8 bus, u32 devfn, int ret; headers[0] = TLP_CFG_DW0(pcie, bus); - headers[1] = TLP_CFG_DW1(TLP_REQ_ID(pcie->root_bus_nr, RP_DEVFN), - TLP_WRITE_TAG, byte_en); + headers[1] = TLP_CFG_DW1(pcie, TLP_WRITE_TAG, byte_en); headers[2] = TLP_CFG_DW2(bus, devfn, where); /* check alignment to Qword */ -- 2.20.1