diff options
Diffstat (limited to 'hw/pau.c')
| -rw-r--r-- | hw/pau.c | 75 |
1 files changed, 75 insertions, 0 deletions
@@ -193,6 +193,80 @@ static void pau_device_detect_fixup(struct pau_dev *dev) dt_add_property_strings(dn, "ibm,pau-link-type", "unknown"); } +static void pau_opencapi_assign_bars(struct pau *pau) +{ + struct pau_dev *dev; + uint64_t addr, size, val; + + /* Global MMIO bar (per pau) + * 16M aligned address -> 0x1000000 (bit 24) + */ + phys_map_get(pau->chip_id, PAU_REGS, pau->index, &addr, &size); + val = SETFIELD(PAU_MMIO_BAR_ADDR, 0ull, addr >> 24); + val |= PAU_MMIO_BAR_ENABLE; + pau_write(pau, PAU_MMIO_BAR, val); + + PAUINF(pau, "MMIO base: 0x%016llx (%lldMB)\n", addr, size >> 20); + pau->regs[0] = addr; + pau->regs[1] = size; + + /* NTL bar (per device) + * 64K aligned address -> 0x10000 (bit 16) + */ + pau_for_each_dev(dev, pau) { + if (dev->type == PAU_DEV_TYPE_UNKNOWN) + continue; + + phys_map_get(pau->chip_id, PAU_OCAPI_MMIO, + pau_dev_index(dev, PAU_LINKS_OPENCAPI_PER_PAU), + &addr, &size); + + val = SETFIELD(PAU_NTL_BAR_ADDR, 0ull, addr >> 16); + val = SETFIELD(PAU_NTL_BAR_SIZE, val, ilog2(size >> 16)); + pau_write(pau, PAU_NTL_BAR(dev->index), val); + + val = SETFIELD(PAU_CTL_MISC_MMIOPA_CONFIG_BAR_ADDR, 0ull, addr >> 16); + val = SETFIELD(PAU_CTL_MISC_MMIOPA_CONFIG_BAR_SIZE, val, ilog2(size >> 16)); + pau_write(pau, PAU_CTL_MISC_MMIOPA_CONFIG(dev->index), val); + + dev->ntl_bar.addr = addr; + dev->ntl_bar.size = size; + } + + /* GENID bar (logically divided per device) + * 512K aligned address -> 0x80000 (bit 19) + */ + phys_map_get(pau->chip_id, PAU_GENID, pau->index, &addr, &size); + val = SETFIELD(PAU_GENID_BAR_ADDR, 0ull, addr >> 19); + pau_write(pau, PAU_GENID_BAR, val); + + pau_for_each_dev(dev, pau) { + if (dev->type == PAU_DEV_TYPE_UNKNOWN) + continue; + + dev->genid_bar.size = size; + /* +320K = Bricks 0-4 Config Addr/Data registers */ + dev->genid_bar.cfg = addr + 0x50000; + } +} + +static void pau_opencapi_init_hw(struct pau *pau) +{ + pau_opencapi_assign_bars(pau); +} + +static void pau_opencapi_init(struct pau *pau) +{ + if (!pau_next_dev(pau, NULL, PAU_DEV_TYPE_OPENCAPI)) + return; + + assert(platform.ocapi); + + pau_opencapi_init_hw(pau); + + disable_fast_reboot("OpenCAPI device enabled"); +} + static void pau_init(struct pau *pau) { struct pau_dev *dev; @@ -201,6 +275,7 @@ static void pau_init(struct pau *pau) pau_for_each_dev(dev, pau) pau_device_detect_fixup(dev); + pau_opencapi_init(pau); } void probe_pau(void) |