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PCI: altera: Simplify TLP_CFG_DW1 usage

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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>
This commit is contained in:
Bjorn Helgaas 2016-10-06 13:29:02 -05:00
parent eb5767122f
commit 4f27628861
1 changed files with 6 additions and 7 deletions
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13
drivers/pci/host/pcie-altera.c
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@ -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 */