diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2016-10-06 13:29:02 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2016-10-11 19:57:49 -0500 |
| commit | 4f276288617d4eca0b720e11ca6da68cc27c7cde (patch) | |
| tree | 2570f10d02e6156272d352e452cba074a3390cd9 /drivers | |
| parent | eb5767122feba117bbc4735b63831857e8153d36 (diff) | |
| download | linux-4f276288617d4eca0b720e11ca6da68cc27c7cde.tar.bz2 | |
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 <bhelgaas@google.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/host/pcie-altera.c | 13 |
1 files 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 */ |