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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2019 HiSilicon Limited. */
#ifndef HISI_ACC_QM_H
#define HISI_ACC_QM_H
#include <linux/bitfield.h>
#include <linux/iopoll.h>
#include <linux/module.h>
#include <linux/pci.h>
#define QM_QNUM_V1 4096
#define QM_QNUM_V2 1024
#define QM_MAX_VFS_NUM_V2 63
/* qm user domain */
#define QM_ARUSER_M_CFG_1 0x100088
#define AXUSER_SNOOP_ENABLE BIT(30)
#define AXUSER_CMD_TYPE GENMASK(14, 12)
#define AXUSER_CMD_SMMU_NORMAL 1
#define AXUSER_NS BIT(6)
#define AXUSER_NO BIT(5)
#define AXUSER_FP BIT(4)
#define AXUSER_SSV BIT(0)
#define AXUSER_BASE (AXUSER_SNOOP_ENABLE | \
FIELD_PREP(AXUSER_CMD_TYPE, \
AXUSER_CMD_SMMU_NORMAL) | \
AXUSER_NS | AXUSER_NO | AXUSER_FP)
#define QM_ARUSER_M_CFG_ENABLE 0x100090
#define ARUSER_M_CFG_ENABLE 0xfffffffe
#define QM_AWUSER_M_CFG_1 0x100098
#define QM_AWUSER_M_CFG_ENABLE 0x1000a0
#define AWUSER_M_CFG_ENABLE 0xfffffffe
#define QM_WUSER_M_CFG_ENABLE 0x1000a8
#define WUSER_M_CFG_ENABLE 0xffffffff
/* qm cache */
#define QM_CACHE_CTL 0x100050
#define SQC_CACHE_ENABLE BIT(0)
#define CQC_CACHE_ENABLE BIT(1)
#define SQC_CACHE_WB_ENABLE BIT(4)
#define SQC_CACHE_WB_THRD GENMASK(10, 5)
#define CQC_CACHE_WB_ENABLE BIT(11)
#define CQC_CACHE_WB_THRD GENMASK(17, 12)
#define QM_AXI_M_CFG 0x1000ac
#define AXI_M_CFG 0xffff
#define QM_AXI_M_CFG_ENABLE 0x1000b0
#define AM_CFG_SINGLE_PORT_MAX_TRANS 0x300014
#define AXI_M_CFG_ENABLE 0xffffffff
#define QM_PEH_AXUSER_CFG 0x1000cc
#define QM_PEH_AXUSER_CFG_ENABLE 0x1000d0
#define PEH_AXUSER_CFG 0x401001
#define PEH_AXUSER_CFG_ENABLE 0xffffffff
#define QM_DFX_MB_CNT_VF 0x104010
#define QM_DFX_DB_CNT_VF 0x104020
#define QM_DFX_SQE_CNT_VF_SQN 0x104030
#define QM_DFX_CQE_CNT_VF_CQN 0x104040
#define QM_DFX_QN_SHIFT 16
#define CURRENT_FUN_MASK GENMASK(5, 0)
#define CURRENT_Q_MASK GENMASK(31, 16)
#define QM_AXI_RRESP BIT(0)
#define QM_AXI_BRESP BIT(1)
#define QM_ECC_MBIT BIT(2)
#define QM_ECC_1BIT BIT(3)
#define QM_ACC_GET_TASK_TIMEOUT BIT(4)
#define QM_ACC_DO_TASK_TIMEOUT BIT(5)
#define QM_ACC_WB_NOT_READY_TIMEOUT BIT(6)
#define QM_SQ_CQ_VF_INVALID BIT(7)
#define QM_CQ_VF_INVALID BIT(8)
#define QM_SQ_VF_INVALID BIT(9)
#define QM_DB_TIMEOUT BIT(10)
#define QM_OF_FIFO_OF BIT(11)
#define QM_DB_RANDOM_INVALID BIT(12)
#define QM_BASE_NFE (QM_AXI_RRESP | QM_AXI_BRESP | QM_ECC_MBIT | \
QM_ACC_GET_TASK_TIMEOUT | QM_DB_TIMEOUT | \
QM_OF_FIFO_OF | QM_DB_RANDOM_INVALID)
#define QM_BASE_CE QM_ECC_1BIT
#define QM_Q_DEPTH 1024
#define HISI_ACC_SGL_SGE_NR_MAX 255
/* page number for queue file region */
#define QM_DOORBELL_PAGE_NR 1
enum qm_stop_reason {
QM_NORMAL,
QM_SOFT_RESET,
QM_FLR,
};
enum qm_state {
QM_INIT = 0,
QM_START,
QM_CLOSE,
QM_STOP,
};
enum qp_state {
QP_INIT = 1,
QP_START,
QP_STOP,
QP_CLOSE,
};
enum qm_hw_ver {
QM_HW_UNKNOWN = -1,
QM_HW_V1 = 0x20,
QM_HW_V2 = 0x21,
QM_HW_V3 = 0x30,
};
enum qm_fun_type {
QM_HW_PF,
QM_HW_VF,
};
enum qm_debug_file {
CURRENT_Q,
CLEAR_ENABLE,
DEBUG_FILE_NUM,
};
struct qm_dfx {
atomic64_t err_irq_cnt;
atomic64_t aeq_irq_cnt;
atomic64_t abnormal_irq_cnt;
atomic64_t create_qp_err_cnt;
atomic64_t mb_err_cnt;
};
struct debugfs_file {
enum qm_debug_file index;
struct mutex lock;
struct qm_debug *debug;
};
struct qm_debug {
u32 curr_qm_qp_num;
u32 sqe_mask_offset;
u32 sqe_mask_len;
struct qm_dfx dfx;
struct dentry *debug_root;
struct dentry *qm_d;
struct debugfs_file files[DEBUG_FILE_NUM];
};
struct qm_dma {
void *va;
dma_addr_t dma;
size_t size;
};
struct hisi_qm_status {
u32 eq_head;
bool eqc_phase;
u32 aeq_head;
bool aeqc_phase;
atomic_t flags;
int stop_reason;
};
struct hisi_qm;
struct hisi_qm_err_info {
char *acpi_rst;
u32 msi_wr_port;
u32 ecc_2bits_mask;
u32 ce;
u32 nfe;
u32 fe;
};
struct hisi_qm_err_status {
u32 is_qm_ecc_mbit;
u32 is_dev_ecc_mbit;
};
struct hisi_qm_err_ini {
int (*hw_init)(struct hisi_qm *qm);
void (*hw_err_enable)(struct hisi_qm *qm);
void (*hw_err_disable)(struct hisi_qm *qm);
u32 (*get_dev_hw_err_status)(struct hisi_qm *qm);
void (*clear_dev_hw_err_status)(struct hisi_qm *qm, u32 err_sts);
void (*open_axi_master_ooo)(struct hisi_qm *qm);
void (*close_axi_master_ooo)(struct hisi_qm *qm);
void (*log_dev_hw_err)(struct hisi_qm *qm, u32 err_sts);
struct hisi_qm_err_info err_info;
};
struct hisi_qm_list {
struct mutex lock;
struct list_head list;
};
struct hisi_qm {
enum qm_hw_ver ver;
enum qm_fun_type fun_type;
const char *dev_name;
struct pci_dev *pdev;
void __iomem *io_base;
u32 sqe_size;
u32 qp_base;
u32 qp_num;
u32 qp_in_used;
u32 ctrl_qp_num;
u32 vfs_num;
struct list_head list;
struct hisi_qm_list *qm_list;
struct qm_dma qdma;
struct qm_sqc *sqc;
struct qm_cqc *cqc;
struct qm_eqe *eqe;
struct qm_aeqe *aeqe;
dma_addr_t sqc_dma;
dma_addr_t cqc_dma;
dma_addr_t eqe_dma;
dma_addr_t aeqe_dma;
struct hisi_qm_status status;
const struct hisi_qm_err_ini *err_ini;
struct hisi_qm_err_status err_status;
unsigned long reset_flag;
struct rw_semaphore qps_lock;
struct idr qp_idr;
struct hisi_qp *qp_array;
struct mutex mailbox_lock;
const struct hisi_qm_hw_ops *ops;
struct qm_debug debug;
u32 error_mask;
struct workqueue_struct *wq;
struct work_struct work;
struct work_struct rst_work;
const char *algs;
bool use_sva;
resource_size_t phys_base;
resource_size_t phys_size;
struct uacce_device *uacce;
};
struct hisi_qp_status {
atomic_t used;
u16 sq_tail;
u16 cq_head;
bool cqc_phase;
atomic_t flags;
};
struct hisi_qp_ops {
int (*fill_sqe)(void *sqe, void *q_parm, void *d_parm);
};
struct hisi_qp {
u32 qp_id;
u8 alg_type;
u8 req_type;
struct qm_dma qdma;
void *sqe;
struct qm_cqe *cqe;
dma_addr_t sqe_dma;
dma_addr_t cqe_dma;
struct hisi_qp_status qp_status;
struct hisi_qp_ops *hw_ops;
void *qp_ctx;
void (*req_cb)(struct hisi_qp *qp, void *data);
void (*event_cb)(struct hisi_qp *qp);
struct hisi_qm *qm;
bool is_resetting;
u16 pasid;
struct uacce_queue *uacce_q;
};
static inline int q_num_set(const char *val, const struct kernel_param *kp,
unsigned int device)
{
struct pci_dev *pdev = pci_get_device(PCI_VENDOR_ID_HUAWEI,
device, NULL);
u32 n, q_num;
int ret;
if (!val)
return -EINVAL;
if (!pdev) {
q_num = min_t(u32, QM_QNUM_V1, QM_QNUM_V2);
pr_info("No device found currently, suppose queue number is %d\n",
q_num);
} else {
if (pdev->revision == QM_HW_V1)
q_num = QM_QNUM_V1;
else
q_num = QM_QNUM_V2;
}
ret = kstrtou32(val, 10, &n);
if (ret || !n || n > q_num)
return -EINVAL;
return param_set_int(val, kp);
}
static inline int vfs_num_set(const char *val, const struct kernel_param *kp)
{
u32 n;
int ret;
if (!val)
return -EINVAL;
ret = kstrtou32(val, 10, &n);
if (ret < 0)
return ret;
if (n > QM_MAX_VFS_NUM_V2)
return -EINVAL;
return param_set_int(val, kp);
}
static inline void hisi_qm_init_list(struct hisi_qm_list *qm_list)
{
INIT_LIST_HEAD(&qm_list->list);
mutex_init(&qm_list->lock);
}
static inline void hisi_qm_add_to_list(struct hisi_qm *qm,
struct hisi_qm_list *qm_list)
{
mutex_lock(&qm_list->lock);
list_add_tail(&qm->list, &qm_list->list);
mutex_unlock(&qm_list->lock);
}
static inline void hisi_qm_del_from_list(struct hisi_qm *qm,
struct hisi_qm_list *qm_list)
{
mutex_lock(&qm_list->lock);
list_del(&qm->list);
mutex_unlock(&qm_list->lock);
}
int hisi_qm_init(struct hisi_qm *qm);
void hisi_qm_uninit(struct hisi_qm *qm);
int hisi_qm_start(struct hisi_qm *qm);
int hisi_qm_stop(struct
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