cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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cpt_common.h (5969B)


      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * Copyright (C) 2016 Cavium, Inc.
      4 */
      5
      6#ifndef __CPT_COMMON_H
      7#define __CPT_COMMON_H
      8
      9#include <asm/byteorder.h>
     10#include <linux/delay.h>
     11#include <linux/pci.h>
     12
     13#include "cpt_hw_types.h"
     14
     15/* Device ID */
     16#define CPT_81XX_PCI_PF_DEVICE_ID 0xa040
     17#define CPT_81XX_PCI_VF_DEVICE_ID 0xa041
     18
     19/* flags to indicate the features supported */
     20#define CPT_FLAG_SRIOV_ENABLED BIT(1)
     21#define CPT_FLAG_VF_DRIVER BIT(2)
     22#define CPT_FLAG_DEVICE_READY BIT(3)
     23
     24#define cpt_sriov_enabled(cpt) ((cpt)->flags & CPT_FLAG_SRIOV_ENABLED)
     25#define cpt_vf_driver(cpt) ((cpt)->flags & CPT_FLAG_VF_DRIVER)
     26#define cpt_device_ready(cpt) ((cpt)->flags & CPT_FLAG_DEVICE_READY)
     27
     28#define CPT_MBOX_MSG_TYPE_ACK 1
     29#define CPT_MBOX_MSG_TYPE_NACK 2
     30#define CPT_MBOX_MSG_TIMEOUT 2000
     31#define VF_STATE_DOWN 0
     32#define VF_STATE_UP 1
     33
     34/*
     35 * CPT Registers map for 81xx
     36 */
     37
     38/* PF registers */
     39#define CPTX_PF_CONSTANTS(a) (0x0ll + ((u64)(a) << 36))
     40#define CPTX_PF_RESET(a) (0x100ll + ((u64)(a) << 36))
     41#define CPTX_PF_DIAG(a) (0x120ll + ((u64)(a) << 36))
     42#define CPTX_PF_BIST_STATUS(a) (0x160ll + ((u64)(a) << 36))
     43#define CPTX_PF_ECC0_CTL(a) (0x200ll + ((u64)(a) << 36))
     44#define CPTX_PF_ECC0_FLIP(a) (0x210ll + ((u64)(a) << 36))
     45#define CPTX_PF_ECC0_INT(a) (0x220ll + ((u64)(a) << 36))
     46#define CPTX_PF_ECC0_INT_W1S(a) (0x230ll + ((u64)(a) << 36))
     47#define CPTX_PF_ECC0_ENA_W1S(a)	(0x240ll + ((u64)(a) << 36))
     48#define CPTX_PF_ECC0_ENA_W1C(a)	(0x250ll + ((u64)(a) << 36))
     49#define CPTX_PF_MBOX_INTX(a, b)	\
     50	(0x400ll + ((u64)(a) << 36) + ((b) << 3))
     51#define CPTX_PF_MBOX_INT_W1SX(a, b) \
     52	(0x420ll + ((u64)(a) << 36) + ((b) << 3))
     53#define CPTX_PF_MBOX_ENA_W1CX(a, b) \
     54	(0x440ll + ((u64)(a) << 36) + ((b) << 3))
     55#define CPTX_PF_MBOX_ENA_W1SX(a, b) \
     56	(0x460ll + ((u64)(a) << 36) + ((b) << 3))
     57#define CPTX_PF_EXEC_INT(a) (0x500ll + 0x1000000000ll * ((a) & 0x1))
     58#define CPTX_PF_EXEC_INT_W1S(a)	(0x520ll + ((u64)(a) << 36))
     59#define CPTX_PF_EXEC_ENA_W1C(a)	(0x540ll + ((u64)(a) << 36))
     60#define CPTX_PF_EXEC_ENA_W1S(a)	(0x560ll + ((u64)(a) << 36))
     61#define CPTX_PF_GX_EN(a, b) \
     62	(0x600ll + ((u64)(a) << 36) + ((b) << 3))
     63#define CPTX_PF_EXEC_INFO(a) (0x700ll + ((u64)(a) << 36))
     64#define CPTX_PF_EXEC_BUSY(a) (0x800ll + ((u64)(a) << 36))
     65#define CPTX_PF_EXEC_INFO0(a) (0x900ll + ((u64)(a) << 36))
     66#define CPTX_PF_EXEC_INFO1(a) (0x910ll + ((u64)(a) << 36))
     67#define CPTX_PF_INST_REQ_PC(a) (0x10000ll + ((u64)(a) << 36))
     68#define CPTX_PF_INST_LATENCY_PC(a) \
     69	(0x10020ll + ((u64)(a) << 36))
     70#define CPTX_PF_RD_REQ_PC(a) (0x10040ll + ((u64)(a) << 36))
     71#define CPTX_PF_RD_LATENCY_PC(a) (0x10060ll + ((u64)(a) << 36))
     72#define CPTX_PF_RD_UC_PC(a) (0x10080ll + ((u64)(a) << 36))
     73#define CPTX_PF_ACTIVE_CYCLES_PC(a) (0x10100ll + ((u64)(a) << 36))
     74#define CPTX_PF_EXE_CTL(a) (0x4000000ll + ((u64)(a) << 36))
     75#define CPTX_PF_EXE_STATUS(a) (0x4000008ll + ((u64)(a) << 36))
     76#define CPTX_PF_EXE_CLK(a) (0x4000010ll + ((u64)(a) << 36))
     77#define CPTX_PF_EXE_DBG_CTL(a) (0x4000018ll + ((u64)(a) << 36))
     78#define CPTX_PF_EXE_DBG_DATA(a)	(0x4000020ll + ((u64)(a) << 36))
     79#define CPTX_PF_EXE_BIST_STATUS(a) (0x4000028ll + ((u64)(a) << 36))
     80#define CPTX_PF_EXE_REQ_TIMER(a) (0x4000030ll + ((u64)(a) << 36))
     81#define CPTX_PF_EXE_MEM_CTL(a) (0x4000038ll + ((u64)(a) << 36))
     82#define CPTX_PF_EXE_PERF_CTL(a)	(0x4001000ll + ((u64)(a) << 36))
     83#define CPTX_PF_EXE_DBG_CNTX(a, b) \
     84	(0x4001100ll + ((u64)(a) << 36) + ((b) << 3))
     85#define CPTX_PF_EXE_PERF_EVENT_CNT(a) (0x4001180ll + ((u64)(a) << 36))
     86#define CPTX_PF_EXE_EPCI_INBX_CNT(a, b) \
     87	(0x4001200ll + ((u64)(a) << 36) + ((b) << 3))
     88#define CPTX_PF_EXE_EPCI_OUTBX_CNT(a, b) \
     89	(0x4001240ll + ((u64)(a) << 36) + ((b) << 3))
     90#define CPTX_PF_ENGX_UCODE_BASE(a, b) \
     91	(0x4002000ll + ((u64)(a) << 36) + ((b) << 3))
     92#define CPTX_PF_QX_CTL(a, b) \
     93	(0x8000000ll + ((u64)(a) << 36) + ((b) << 20))
     94#define CPTX_PF_QX_GMCTL(a, b) \
     95	(0x8000020ll + ((u64)(a) << 36) + ((b) << 20))
     96#define CPTX_PF_QX_CTL2(a, b) \
     97	(0x8000100ll + ((u64)(a) << 36) + ((b) << 20))
     98#define CPTX_PF_VFX_MBOXX(a, b, c) \
     99	(0x8001000ll + ((u64)(a) << 36) + ((b) << 20) + ((c) << 8))
    100
    101/* VF registers */
    102#define CPTX_VQX_CTL(a, b) (0x100ll + ((u64)(a) << 36) + ((b) << 20))
    103#define CPTX_VQX_SADDR(a, b) (0x200ll + ((u64)(a) << 36) + ((b) << 20))
    104#define CPTX_VQX_DONE_WAIT(a, b) (0x400ll + ((u64)(a) << 36) + ((b) << 20))
    105#define CPTX_VQX_INPROG(a, b) (0x410ll + ((u64)(a) << 36) + ((b) << 20))
    106#define CPTX_VQX_DONE(a, b) (0x420ll + ((u64)(a) << 36) + ((b) << 20))
    107#define CPTX_VQX_DONE_ACK(a, b) (0x440ll + ((u64)(a) << 36) + ((b) << 20))
    108#define CPTX_VQX_DONE_INT_W1S(a, b) (0x460ll + ((u64)(a) << 36) + ((b) << 20))
    109#define CPTX_VQX_DONE_INT_W1C(a, b) (0x468ll + ((u64)(a) << 36) + ((b) << 20))
    110#define CPTX_VQX_DONE_ENA_W1S(a, b) (0x470ll + ((u64)(a) << 36) + ((b) << 20))
    111#define CPTX_VQX_DONE_ENA_W1C(a, b) (0x478ll + ((u64)(a) << 36) + ((b) << 20))
    112#define CPTX_VQX_MISC_INT(a, b)	(0x500ll + ((u64)(a) << 36) + ((b) << 20))
    113#define CPTX_VQX_MISC_INT_W1S(a, b) (0x508ll + ((u64)(a) << 36) + ((b) << 20))
    114#define CPTX_VQX_MISC_ENA_W1S(a, b) (0x510ll + ((u64)(a) << 36) + ((b) << 20))
    115#define CPTX_VQX_MISC_ENA_W1C(a, b) (0x518ll + ((u64)(a) << 36) + ((b) << 20))
    116#define CPTX_VQX_DOORBELL(a, b) (0x600ll + ((u64)(a) << 36) + ((b) << 20))
    117#define CPTX_VFX_PF_MBOXX(a, b, c) \
    118	(0x1000ll + ((u64)(a) << 36) + ((b) << 20) + ((c) << 3))
    119
    120enum vftype {
    121	AE_TYPES = 1,
    122	SE_TYPES = 2,
    123	BAD_CPT_TYPES,
    124};
    125
    126/* Max CPT devices supported */
    127enum cpt_mbox_opcode {
    128	CPT_MSG_VF_UP = 1,
    129	CPT_MSG_VF_DOWN,
    130	CPT_MSG_READY,
    131	CPT_MSG_QLEN,
    132	CPT_MSG_QBIND_GRP,
    133	CPT_MSG_VQ_PRIORITY,
    134};
    135
    136/* CPT mailbox structure */
    137struct cpt_mbox {
    138	u64 msg; /* Message type MBOX[0] */
    139	u64 data;/* Data         MBOX[1] */
    140};
    141
    142/* Register read/write APIs */
    143static inline void cpt_write_csr64(u8 __iomem *hw_addr, u64 offset,
    144				   u64 val)
    145{
    146	writeq(val, hw_addr + offset);
    147}
    148
    149static inline u64 cpt_read_csr64(u8 __iomem *hw_addr, u64 offset)
    150{
    151	return readq(hw_addr + offset);
    152}
    153#endif /* __CPT_COMMON_H */