| /* Copyright 2013-2014 IBM Corp. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
| * implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef __CHIP_H |
| #define __CHIP_H |
| |
| #include <stdint.h> |
| #include <lock.h> |
| |
| #include <ccan/list/list.h> |
| |
| /* |
| * Note on chip IDs: |
| * |
| * We carry a "chip_id" around, in the cpu_thread, but also as |
| * ibm,chip-id properties. |
| * |
| * This ID is the HW fabric ID of a chip based on the XSCOM numbering, |
| * also known as "GCID" (Global Chip ID). |
| * |
| * The format of this number is different between P7 and P8 and care must |
| * be taken when trying to convert between this chip ID and some other |
| * representation such as PIR values, interrupt-server numbers etc... : |
| * |
| * P7 GCID |
| * ------- |
| * |
| * Global chip ID is a 6 bit number: |
| * |
| * NodeID T ChipID |
| * | | | | |
| * |___|___|___|___|___|___| |
| * |
| * Where T is the "torrent" bit and is 0 for P7 chips and 1 for |
| * directly XSCOM'able IO chips such as Torrent |
| * |
| * This macro converts a PIR to a GCID |
| */ |
| #define P7_PIR2GCID(pir) ({ \ |
| uint32_t _pir = pir; \ |
| ((_pir >> 4) & 0x38) | ((_pir >> 5) & 0x3); }) |
| |
| #define P7_PIR2COREID(pir) (((pir) >> 2) & 0x7) |
| |
| #define P7_PIR2THREADID(pir) ((pir) & 0x3) |
| |
| /* |
| * P8 GCID |
| * ------- |
| * |
| * Global chip ID is a 6 bit number: |
| * |
| * NodeID ChipID |
| * | | | |
| * |___|___|___|___|___|___| |
| * |
| * The difference with P7 is the absence of T bit, the ChipID |
| * is 3 bits long. The GCID is thus the same as the high bits |
| * if the PIR |
| */ |
| #define P8_PIR2GCID(pir) (((pir) >> 7) & 0x3f) |
| |
| #define P8_PIR2COREID(pir) (((pir) >> 3) & 0xf) |
| |
| #define P8_PIR2THREADID(pir) ((pir) & 0x7) |
| |
| /* |
| * P9 GCID |
| * ------- |
| * |
| * Global chip ID is a 7 bit number: |
| * |
| * NodeID ChipID |
| * | | | |
| * |___|___|___|___|___|___|___| |
| * |
| * Bit 56 is unused according to the manual by we add it to the coreid here, |
| * thus we have a 6-bit core number. |
| * |
| * Note: XIVE Only supports 4-bit chip numbers ... |
| */ |
| #define P9_PIR2GCID(pir) (((pir) >> 8) & 0x7f) |
| |
| #define P9_PIR2COREID(pir) (((pir) >> 2) & 0x3f) |
| |
| #define P9_PIR2THREADID(pir) ((pir) & 0x3) |
| |
| /* P9 specific ones mostly used by XIVE */ |
| #define P9_PIR2LOCALCPU(pir) ((pir) & 0xff) |
| #define P9_PIRFROMLOCALCPU(chip, cpu) (((chip) << 8) | (cpu)) |
| |
| |
| struct dt_node; |
| struct centaur_chip; |
| struct mfsi; |
| struct xive; |
| struct lpcm; |
| |
| /* Chip type */ |
| enum proc_chip_type { |
| PROC_CHIP_UNKNOWN, |
| PROC_CHIP_P7, |
| PROC_CHIP_P7P, |
| PROC_CHIP_P8_MURANO, |
| PROC_CHIP_P8_VENICE, |
| PROC_CHIP_P8_NAPLES, |
| PROC_CHIP_P9_NIMBUS, |
| PROC_CHIP_P9_CUMULUS, |
| }; |
| |
| /* Simulator quirks */ |
| enum proc_chip_quirks { |
| QUIRK_NO_CHIPTOD = 0x00000001, |
| QUIRK_MAMBO_CALLOUTS = 0x00000002, |
| QUIRK_NO_F000F = 0x00000004, |
| QUIRK_NO_PBA = 0x00000008, |
| QUIRK_NO_OCC_IRQ = 0x00000010, |
| QUIRK_SIMICS = 0x00000020, |
| QUIRK_SLOW_SIM = 0x00000040, |
| QUIRK_NO_DIRECT_CTL = 0x00000080, |
| QUIRK_NO_RNG = 0x00000100, |
| }; |
| |
| extern enum proc_chip_quirks proc_chip_quirks; |
| |
| static inline bool chip_quirk(unsigned int q) |
| { |
| return !!(proc_chip_quirks & q); |
| } |
| |
| #define MAX_CHIPS (1 << 6) /* 6-bit chip ID */ |
| |
| /* |
| * For each chip in the system, we maintain this structure |
| * |
| * This contains fields used by different modules including |
| * modules in hw/ but is handy to keep per-chip data |
| */ |
| struct proc_chip { |
| uint32_t id; /* HW Chip ID (GCID) */ |
| struct dt_node *devnode; /* "xscom" chip node */ |
| |
| /* These are only initialized after xcom_init */ |
| enum proc_chip_type type; |
| uint32_t ec_level; /* 0xMm (DD1.0 = 0x10) */ |
| uint8_t ec_rev; /* sub-revision */ |
| |
| /* Those two values are only populated on machines with an FSP |
| * dbob_id = Drawer/Block/Octant/Blade (DBOBID) |
| * pcid = HDAT processor_chip_id |
| */ |
| uint32_t dbob_id; |
| uint32_t pcid; |
| |
| /* If we expect to have an OCC (i.e. P8) and it is functional, |
| * set TRUE. If something has told us it is not, set FALSE and |
| * we can not wait for OCCs to init. This is only going to be |
| * FALSE in a simulator that doesn't simulate OCCs. */ |
| bool occ_functional; |
| |
| /* Used by hw/xscom.c */ |
| uint64_t xscom_base; |
| |
| /* Used by hw/lpc.c */ |
| struct lpcm *lpc; |
| |
| /* Used by hw/slw.c */ |
| uint64_t slw_base; |
| uint64_t slw_bar_size; |
| uint64_t slw_image_size; |
| |
| /* Used by hw/homer.c */ |
| uint64_t homer_base; |
| uint64_t homer_size; |
| uint64_t occ_common_base; |
| uint64_t occ_common_size; |
| uint8_t throttle; |
| |
| /* Must hold capi_lock to change */ |
| uint8_t capp_phb3_attached_mask; |
| uint8_t capp_ucode_loaded; |
| |
| /* Used by hw/centaur.c */ |
| struct centaur_chip *centaurs; |
| |
| /* Used by hw/p8-i2c.c */ |
| struct list_head i2cms; |
| |
| /* Used by hw/psi.c */ |
| struct psi *psi; |
| |
| /* Used by hw/fsi-master.c */ |
| struct mfsi *fsi_masters; |
| |
| /* Used by hw/xive.c */ |
| struct xive *xive; |
| }; |
| |
| extern uint32_t pir_to_chip_id(uint32_t pir); |
| extern uint32_t pir_to_core_id(uint32_t pir); |
| extern uint32_t pir_to_thread_id(uint32_t pir); |
| |
| extern struct proc_chip *next_chip(struct proc_chip *chip); |
| |
| #define for_each_chip(__c) for (__c=next_chip(NULL); __c; __c=next_chip(__c)) |
| |
| extern struct proc_chip *get_chip(uint32_t chip_id); |
| |
| extern void init_chips(void); |
| |
| |
| #endif /* __CHIP_H */ |
| |