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PCI: altera: Simplify TLB_CFG_DW0 usage

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All TLP_CFG_DW0() uses follow the same pattern based on the root bus
number, so pull that into the macro itself to declutter the users.  No
functional change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Bjorn Helgaas 2016-10-06 13:29:01 -05:00
parent 14c7b9580f
commit eb5767122f
1 changed files with 6 additions and 11 deletions
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17
drivers/pci/host/pcie-altera.c
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@ -55,7 +55,10 @@
#define TLP_PAYLOAD_SIZE 0x01
#define TLP_READ_TAG 0x1d
#define TLP_WRITE_TAG 0x10
#define TLP_CFG_DW0(fmttype) (((fmttype) << 24) | TLP_PAYLOAD_SIZE)
#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_DW2(bus, devfn, offset) \
(((bus) << 24) | ((devfn) << 16) | (offset))
@ -218,11 +221,7 @@ static int tlp_cfg_dword_read(struct altera_pcie *pcie, u8 bus, u32 devfn,
{
u32 headers[TLP_HDR_SIZE];
if (bus == pcie->root_bus_nr)
headers[0] = TLP_CFG_DW0(TLP_FMTTYPE_CFGRD0);
else
headers[0] = TLP_CFG_DW0(TLP_FMTTYPE_CFGRD1);
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[2] = TLP_CFG_DW2(bus, devfn, where);
@ -238,11 +237,7 @@ static int tlp_cfg_dword_write(struct altera_pcie *pcie, u8 bus, u32 devfn,
u32 headers[TLP_HDR_SIZE];
int ret;
if (bus == pcie->root_bus_nr)
headers[0] = TLP_CFG_DW0(TLP_FMTTYPE_CFGWR0);
else
headers[0] = TLP_CFG_DW0(TLP_FMTTYPE_CFGWR1);
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[2] = TLP_CFG_DW2(bus, devfn, where);