/* Check for non type-00 header */ if (cfg_type == 0) { bool has_msix; bool is_nic = (vendor_device == 0xa01e177d); bool is_tns = (vendor_device == 0xa01f177d);
addr = bus->ops->map_bus(bus, devfn, 0x70); if (!addr) return PCIBIOS_DEVICE_NOT_FOUND;
/* E_CAP */
v = readl(addr);
has_msix = (v & 0xff00) != 0;
if (!has_msix && where_a == 0x70) {
v |= 0xbc00; /* next capability is EA at 0xbc */
set_val(v, where, size, val); return PCIBIOS_SUCCESSFUL;
} if (where_a == 0xb0) {
addr = bus->ops->map_bus(bus, devfn, where_a); if (!addr) return PCIBIOS_DEVICE_NOT_FOUND;
v = readl(addr); if (v & 0xff00)
pr_err("Bad MSI-X cap header: %08x\n", v);
v |= 0xbc00; /* next capability is EA at 0xbc */
set_val(v, where, size, val); return PCIBIOS_SUCCESSFUL;
} if (where_a == 0xbc) { if (is_nic)
v = 0x40014; /* EA last in chain, 4 entries */ elseif (is_tns)
v = 0x30014; /* EA last in chain, 3 entries */ elseif (has_msix)
v = 0x20014; /* EA last in chain, 2 entries */ else
v = 0x10014; /* EA last in chain, 1 entry */
set_val(v, where, size, val); return PCIBIOS_SUCCESSFUL;
} if (where_a >= 0xc0 && where_a < 0xd0) /* EA entry-0. PP=0, BAR0 Size:3 */ return handle_ea_bar(0x80ff0003, 0x10, bus, devfn, where,
size, val); if (where_a >= 0xd0 && where_a < 0xe0 && has_msix) /* EA entry-1. PP=0, BAR4 Size:3 */ return handle_ea_bar(0x80ff0043, 0x20, bus, devfn, where,
size, val); if (where_a >= 0xe0 && where_a < 0xf0 && is_tns) /* EA entry-2. PP=0, BAR2, Size:3 */ return handle_ea_bar(0x80ff0023, 0x18, bus, devfn, where,
size, val); if (where_a >= 0xe0 && where_a < 0xf0 && is_nic) /* EA entry-2. PP=4, VF_BAR0 (9), Size:3 */ return handle_ea_bar(0x80ff0493, 0x1a4, bus, devfn, where,
size, val); if (where_a >= 0xf0 && where_a < 0x100 && is_nic) /* EA entry-3. PP=4, VF_BAR4 (d), Size:3 */ return handle_ea_bar(0x80ff04d3, 0x1b4, bus, devfn, where,
size, val);
} elseif (cfg_type == 1) { bool is_rsl_bridge = devfn == 0x08; bool is_rad_bridge = devfn == 0xa0; bool is_zip_bridge = devfn == 0xa8; bool is_dfa_bridge = devfn == 0xb0; bool is_nic_bridge = devfn == 0x10;
if (where_a == 0x70) {
addr = bus->ops->map_bus(bus, devfn, where_a); if (!addr) return PCIBIOS_DEVICE_NOT_FOUND;
v = readl(addr); if (v & 0xff00)
pr_err("Bad PCIe cap header: %08x\n", v);
v |= 0xbc00; /* next capability is EA at 0xbc */
set_val(v, where, size, val); return PCIBIOS_SUCCESSFUL;
} if (where_a == 0xbc) { if (is_nic_bridge)
v = 0x10014; /* EA last in chain, 1 entry */ else
v = 0x00014; /* EA last in chain, no entries */
set_val(v, where, size, val); return PCIBIOS_SUCCESSFUL;
} if (where_a == 0xc0) { if (is_rsl_bridge || is_nic_bridge)
v = 0x0101; /* subordinate:secondary = 1:1 */ elseif (is_rad_bridge)
v = 0x0202; /* subordinate:secondary = 2:2 */ elseif (is_zip_bridge)
v = 0x0303; /* subordinate:secondary = 3:3 */ elseif (is_dfa_bridge)
v = 0x0404; /* subordinate:secondary = 4:4 */
set_val(v, where, size, val); return PCIBIOS_SUCCESSFUL;
} if (where_a == 0xc4 && is_nic_bridge) { /* Enabled, not-Write, SP=ff, PP=05, BEI=6, ES=4 */
v = 0x80ff0564;
set_val(v, where, size, val); return PCIBIOS_SUCCESSFUL;
} if (where_a == 0xc8 && is_nic_bridge) {
v = 0x00000002; /* Base-L 64-bit */
set_val(v, where, size, val); return PCIBIOS_SUCCESSFUL;
} if (where_a == 0xcc && is_nic_bridge) {
v = 0xfffffffe; /* MaxOffset-L 64-bit */
set_val(v, where, size, val); return PCIBIOS_SUCCESSFUL;
} if (where_a == 0xd0 && is_nic_bridge) {
v = 0x00008430; /* NIC Base-H */
set_val(v, where, size, val); return PCIBIOS_SUCCESSFUL;
} if (where_a == 0xd4 && is_nic_bridge) {
v = 0x0000000f; /* MaxOffset-H */
set_val(v, where, size, val); return PCIBIOS_SUCCESSFUL;
}
}
no_emulation: return pci_generic_config_read(bus, devfn, where, size, val);
}
staticint thunder_ecam_config_write(struct pci_bus *bus, unsignedint devfn, int where, int size, u32 val)
{ /* *AllBARshavefixedaddresses;ignoreBARwritessothey *don'tgetcorrupted.
*/ if ((where >= 0x10 && where < 0x2c) ||
(where >= 0x1a4 && where < 0x1bc)) /* BAR or SR-IOV BAR */ return PCIBIOS_SUCCESSFUL;
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