root/sys/dev/qat/qat_common/adf_dev_err.c
/* SPDX-License-Identifier: BSD-3-Clause */
/* Copyright(c) 2007-2022 Intel Corporation */
#include "adf_dev_err.h"

struct reg_info {
        size_t offs;
        char *name;
};

static struct reg_info adf_err_regs[] = {
        { ADF_ERRSOU0, "ERRSOU0" },
        { ADF_ERRSOU1, "ERRSOU1" },
        { ADF_ERRSOU3, "ERRSOU3" },
        { ADF_ERRSOU4, "ERRSOU4" },
        { ADF_ERRSOU5, "ERRSOU5" },
        { ADF_RICPPINTSTS, "RICPPINTSTS" },
        { ADF_RIERRPUSHID, "RIERRPUSHID" },
        { ADF_RIERRPULLID, "RIERRPULLID" },
        { ADF_CPP_CFC_ERR_STATUS, "CPP_CFC_ERR_STATUS" },
        { ADF_CPP_CFC_ERR_PPID, "CPP_CFC_ERR_PPID" },
        { ADF_TICPPINTSTS, "TICPPINTSTS" },
        { ADF_TIERRPUSHID, "TIERRPUSHID" },
        { ADF_TIERRPULLID, "TIERRPULLID" },
        { ADF_SECRAMUERR, "SECRAMUERR" },
        { ADF_SECRAMUERRAD, "SECRAMUERRAD" },
        { ADF_CPPMEMTGTERR, "CPPMEMTGTERR" },
        { ADF_ERRPPID, "ERRPPID" },
};

static u32
adf_get_intstatsssm(struct resource *pmisc_bar_addr, size_t dev)
{
        return ADF_CSR_RD(pmisc_bar_addr, ADF_INTSTATSSM(dev));
}

static u32
adf_get_pperr(struct resource *pmisc_bar_addr, size_t dev)
{
        return ADF_CSR_RD(pmisc_bar_addr, ADF_PPERR(dev));
}

static u32
adf_get_pperrid(struct resource *pmisc_bar_addr, size_t dev)
{
        return ADF_CSR_RD(pmisc_bar_addr, ADF_PPERRID(dev));
}

static u32
adf_get_uerrssmsh(struct resource *pmisc_bar_addr, size_t dev)
{
        return ADF_CSR_RD(pmisc_bar_addr, ADF_UERRSSMSH(dev));
}

static u32
adf_get_uerrssmshad(struct resource *pmisc_bar_addr, size_t dev)
{
        return ADF_CSR_RD(pmisc_bar_addr, ADF_UERRSSMSHAD(dev));
}

static u32
adf_get_uerrssmmmp0(struct resource *pmisc_bar_addr, size_t dev)
{
        return ADF_CSR_RD(pmisc_bar_addr, ADF_UERRSSMMMP(dev, 0));
}

static u32
adf_get_uerrssmmmp1(struct resource *pmisc_bar_addr, size_t dev)
{
        return ADF_CSR_RD(pmisc_bar_addr, ADF_UERRSSMMMP(dev, 1));
}

static u32
adf_get_uerrssmmmp2(struct resource *pmisc_bar_addr, size_t dev)
{
        return ADF_CSR_RD(pmisc_bar_addr, ADF_UERRSSMMMP(dev, 2));
}

static u32
adf_get_uerrssmmmp3(struct resource *pmisc_bar_addr, size_t dev)
{
        return ADF_CSR_RD(pmisc_bar_addr, ADF_UERRSSMMMP(dev, 3));
}

static u32
adf_get_uerrssmmmp4(struct resource *pmisc_bar_addr, size_t dev)
{
        return ADF_CSR_RD(pmisc_bar_addr, ADF_UERRSSMMMP(dev, 4));
}

static u32
adf_get_uerrssmmmpad0(struct resource *pmisc_bar_addr, size_t dev)
{
        return ADF_CSR_RD(pmisc_bar_addr, ADF_UERRSSMMMPAD(dev, 0));
}

static u32
adf_get_uerrssmmmpad1(struct resource *pmisc_bar_addr, size_t dev)
{
        return ADF_CSR_RD(pmisc_bar_addr, ADF_UERRSSMMMPAD(dev, 1));
}

static u32
adf_get_uerrssmmmpad2(struct resource *pmisc_bar_addr, size_t dev)
{
        return ADF_CSR_RD(pmisc_bar_addr, ADF_UERRSSMMMPAD(dev, 2));
}

static u32
adf_get_uerrssmmmpad3(struct resource *pmisc_bar_addr, size_t dev)
{
        return ADF_CSR_RD(pmisc_bar_addr, ADF_UERRSSMMMPAD(dev, 3));
}

static u32
adf_get_uerrssmmmpad4(struct resource *pmisc_bar_addr, size_t dev)
{
        return ADF_CSR_RD(pmisc_bar_addr, ADF_UERRSSMMMPAD(dev, 4));
}

struct reg_array_info {
        u32 (*read)(struct resource *pmisc_bar_addr, size_t dev);
        char *name;
};

static struct reg_array_info adf_accel_err_regs[] = {
        { adf_get_intstatsssm, "INTSTATSSM" },
        { adf_get_pperr, "PPERR" },
        { adf_get_pperrid, "PPERRID" },
        { adf_get_uerrssmsh, "UERRSSMSH" },
        { adf_get_uerrssmshad, "UERRSSMSHAD" },
        { adf_get_uerrssmmmp0, "UERRSSMMMP0" },
        { adf_get_uerrssmmmp1, "UERRSSMMMP1" },
        { adf_get_uerrssmmmp2, "UERRSSMMMP2" },
        { adf_get_uerrssmmmp3, "UERRSSMMMP3" },
        { adf_get_uerrssmmmp4, "UERRSSMMMP4" },
        { adf_get_uerrssmmmpad0, "UERRSSMMMPAD0" },
        { adf_get_uerrssmmmpad1, "UERRSSMMMPAD1" },
        { adf_get_uerrssmmmpad2, "UERRSSMMMPAD2" },
        { adf_get_uerrssmmmpad3, "UERRSSMMMPAD3" },
        { adf_get_uerrssmmmpad4, "UERRSSMMMPAD4" },
};

static char adf_printf_buf[128] = { 0 };
static size_t adf_printf_len;

static void
adf_print_flush(struct adf_accel_dev *accel_dev)
{
        if (adf_printf_len > 0) {
                device_printf(GET_DEV(accel_dev), "%.128s\n", adf_printf_buf);
                adf_printf_len = 0;
        }
}

static void
adf_print_reg(struct adf_accel_dev *accel_dev,
              const char *name,
              size_t idx,
              u32 val)
{
        adf_printf_len += snprintf(&adf_printf_buf[adf_printf_len],
                                   sizeof(adf_printf_buf) - adf_printf_len,
                                   "%s[%zu],%.8x,",
                                   name,
                                   idx,
                                   val);

        if (adf_printf_len >= 80)
                adf_print_flush(accel_dev);
}

void
adf_print_err_registers(struct adf_accel_dev *accel_dev)
{
        struct adf_hw_device_data *hw_data = accel_dev->hw_device;
        struct adf_bar *misc_bar =
            &GET_BARS(accel_dev)[hw_data->get_misc_bar_id(hw_data)];
        struct resource *csr = misc_bar->virt_addr;
        size_t i;
        unsigned int mask;
        u32 val;

        for (i = 0; i < ARRAY_SIZE(adf_err_regs); ++i) {
                val = ADF_CSR_RD(csr, adf_err_regs[i].offs);

                adf_print_reg(accel_dev, adf_err_regs[i].name, 0, val);
        }

        for (i = 0; i < ARRAY_SIZE(adf_accel_err_regs); ++i) {
                size_t accel;

                for (accel = 0, mask = hw_data->accel_mask; mask;
                     accel++, mask >>= 1) {
                        if (!(mask & 1))
                                continue;
                        val = adf_accel_err_regs[i].read(csr, accel);

                        adf_print_reg(accel_dev,
                                      adf_accel_err_regs[i].name,
                                      accel,
                                      val);
                }
        }

        adf_print_flush(accel_dev);
}

static void
adf_log_slice_hang(struct adf_accel_dev *accel_dev,
                   u8 accel_num,
                   char *unit_name,
                   u8 unit_number)
{
        device_printf(GET_DEV(accel_dev),
                      "CPM #%x Slice Hang Detected unit: %s%d.\n",
                      accel_num,
                      unit_name,
                      unit_number);
}

bool
adf_handle_slice_hang(struct adf_accel_dev *accel_dev,
                      u8 accel_num,
                      struct resource *csr,
                      u32 slice_hang_offset)
{
        u32 slice_hang = ADF_CSR_RD(csr, slice_hang_offset);

        if (!slice_hang)
                return false;

        if (slice_hang & ADF_SLICE_HANG_AUTH0_MASK)
                adf_log_slice_hang(accel_dev, accel_num, "Auth", 0);
        if (slice_hang & ADF_SLICE_HANG_AUTH1_MASK)
                adf_log_slice_hang(accel_dev, accel_num, "Auth", 1);
        if (slice_hang & ADF_SLICE_HANG_AUTH2_MASK)
                adf_log_slice_hang(accel_dev, accel_num, "Auth", 2);
        if (slice_hang & ADF_SLICE_HANG_CPHR0_MASK)
                adf_log_slice_hang(accel_dev, accel_num, "Cipher", 0);
        if (slice_hang & ADF_SLICE_HANG_CPHR1_MASK)
                adf_log_slice_hang(accel_dev, accel_num, "Cipher", 1);
        if (slice_hang & ADF_SLICE_HANG_CPHR2_MASK)
                adf_log_slice_hang(accel_dev, accel_num, "Cipher", 2);
        if (slice_hang & ADF_SLICE_HANG_CMP0_MASK)
                adf_log_slice_hang(accel_dev, accel_num, "Comp", 0);
        if (slice_hang & ADF_SLICE_HANG_CMP1_MASK)
                adf_log_slice_hang(accel_dev, accel_num, "Comp", 1);
        if (slice_hang & ADF_SLICE_HANG_XLT0_MASK)
                adf_log_slice_hang(accel_dev, accel_num, "Xlator", 0);
        if (slice_hang & ADF_SLICE_HANG_XLT1_MASK)
                adf_log_slice_hang(accel_dev, accel_num, "Xlator", 1);
        if (slice_hang & ADF_SLICE_HANG_MMP0_MASK)
                adf_log_slice_hang(accel_dev, accel_num, "MMP", 0);
        if (slice_hang & ADF_SLICE_HANG_MMP1_MASK)
                adf_log_slice_hang(accel_dev, accel_num, "MMP", 1);
        if (slice_hang & ADF_SLICE_HANG_MMP2_MASK)
                adf_log_slice_hang(accel_dev, accel_num, "MMP", 2);
        if (slice_hang & ADF_SLICE_HANG_MMP3_MASK)
                adf_log_slice_hang(accel_dev, accel_num, "MMP", 3);
        if (slice_hang & ADF_SLICE_HANG_MMP4_MASK)
                adf_log_slice_hang(accel_dev, accel_num, "MMP", 4);

        /* Clear the associated interrupt */
        ADF_CSR_WR(csr, slice_hang_offset, slice_hang);

        return true;
}

/**
 * adf_check_slice_hang() - Check slice hang status
 *
 * Return: true if a slice hange interrupt is serviced..
 */
bool
adf_check_slice_hang(struct adf_accel_dev *accel_dev)
{
        struct adf_hw_device_data *hw_data = accel_dev->hw_device;
        struct adf_bar *misc_bar =
            &GET_BARS(accel_dev)[hw_data->get_misc_bar_id(hw_data)];
        struct resource *csr = misc_bar->virt_addr;
        u32 errsou3 = ADF_CSR_RD(csr, ADF_ERRSOU3);
        u32 errsou5 = ADF_CSR_RD(csr, ADF_ERRSOU5);
        u32 offset;
        u32 accel_num;
        bool handled = false;
        u32 errsou[] = { errsou3, errsou3, errsou5, errsou5, errsou5 };
        u32 mask[] = { ADF_EMSK3_CPM0_MASK,
                       ADF_EMSK3_CPM1_MASK,
                       ADF_EMSK5_CPM2_MASK,
                       ADF_EMSK5_CPM3_MASK,
                       ADF_EMSK5_CPM4_MASK };
        unsigned int accel_mask;

        for (accel_num = 0, accel_mask = hw_data->accel_mask; accel_mask;
             accel_num++, accel_mask >>= 1) {
                if (!(accel_mask & 1))
                        continue;
                if (accel_num >= ARRAY_SIZE(errsou)) {
                        device_printf(GET_DEV(accel_dev),
                                      "Invalid accel_num %d.\n",
                                      accel_num);
                        break;
                }

                if (errsou[accel_num] & mask[accel_num]) {
                        if (ADF_CSR_RD(csr, ADF_INTSTATSSM(accel_num)) &
                            ADF_INTSTATSSM_SHANGERR) {
                                offset = ADF_SLICEHANGSTATUS(accel_num);
                                handled |= adf_handle_slice_hang(accel_dev,
                                                                 accel_num,
                                                                 csr,
                                                                 offset);
                        }
                }
        }

        return handled;
}