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crypto: hisilicon/zip - support last word dumping 

1. Add some debugging registers.
2. Add last word dumping function during zip engine controller reset.

Signed-off-by: Kai Ye <yekai13@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Kai Ye 2022-04-09 16:03:28 +08:00 committed by Herbert Xu
parent 42123e81fd
commit 5bfabd50c6
1 changed files with 106 additions and 1 deletions
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107
drivers/crypto/hisilicon/zip/zip_main.c
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@ -234,6 +234,22 @@ static const struct debugfs_reg32 hzip_dfx_regs[] = {
{"HZIP_DECOMP_LZ77_CURR_ST ", 0x9cull},
};
static const struct debugfs_reg32 hzip_com_dfx_regs[] = {
{"HZIP_CLOCK_GATE_CTRL ", 0x301004},
{"HZIP_CORE_INT_RAS_CE_ENB ", 0x301160},
{"HZIP_CORE_INT_RAS_NFE_ENB ", 0x301164},
{"HZIP_CORE_INT_RAS_FE_ENB ", 0x301168},
{"HZIP_UNCOM_ERR_RAS_CTRL ", 0x30116C},
};
static const struct debugfs_reg32 hzip_dump_dfx_regs[] = {
{"HZIP_GET_BD_NUM ", 0x00ull},
{"HZIP_GET_RIGHT_BD ", 0x04ull},
{"HZIP_GET_ERROR_BD ", 0x08ull},
{"HZIP_DONE_BD_NUM ", 0x0cull},
{"HZIP_MAX_DELAY ", 0x20ull},
};
/* define the ZIP's dfx regs region and region length */
static struct dfx_diff_registers hzip_diff_regs[] = {
{
@ -773,6 +789,87 @@ static void hisi_zip_debugfs_exit(struct hisi_qm *qm)
}
}
static int hisi_zip_show_last_regs_init(struct hisi_qm *qm)
{
int core_dfx_regs_num = ARRAY_SIZE(hzip_dump_dfx_regs);
int com_dfx_regs_num = ARRAY_SIZE(hzip_com_dfx_regs);
struct qm_debug *debug = &qm->debug;
void __iomem *io_base;
int i, j, idx;
debug->last_words = kcalloc(core_dfx_regs_num * HZIP_CORE_NUM +
com_dfx_regs_num, sizeof(unsigned int), GFP_KERNEL);
if (!debug->last_words)
return -ENOMEM;
for (i = 0; i < com_dfx_regs_num; i++) {
io_base = qm->io_base + hzip_com_dfx_regs[i].offset;
debug->last_words[i] = readl_relaxed(io_base);
}
for (i = 0; i < HZIP_CORE_NUM; i++) {
io_base = qm->io_base + core_offsets[i];
for (j = 0; j < core_dfx_regs_num; j++) {
idx = com_dfx_regs_num + i * core_dfx_regs_num + j;
debug->last_words[idx] = readl_relaxed(
io_base + hzip_dump_dfx_regs[j].offset);
}
}
return 0;
}
static void hisi_zip_show_last_regs_uninit(struct hisi_qm *qm)
{
struct qm_debug *debug = &qm->debug;
if (qm->fun_type == QM_HW_VF || !debug->last_words)
return;
kfree(debug->last_words);
debug->last_words = NULL;
}
static void hisi_zip_show_last_dfx_regs(struct hisi_qm *qm)
{
int core_dfx_regs_num = ARRAY_SIZE(hzip_dump_dfx_regs);
int com_dfx_regs_num = ARRAY_SIZE(hzip_com_dfx_regs);
struct qm_debug *debug = &qm->debug;
char buf[HZIP_BUF_SIZE];
void __iomem *base;
int i, j, idx;
u32 val;
if (qm->fun_type == QM_HW_VF || !debug->last_words)
return;
for (i = 0; i < com_dfx_regs_num; i++) {
val = readl_relaxed(qm->io_base + hzip_com_dfx_regs[i].offset);
if (debug->last_words[i] != val)
pci_info(qm->pdev, "com_dfx: %s \t= 0x%08x => 0x%08x\n",
hzip_com_dfx_regs[i].name, debug->last_words[i], val);
}
for (i = 0; i < HZIP_CORE_NUM; i++) {
if (i < HZIP_COMP_CORE_NUM)
scnprintf(buf, sizeof(buf), "Comp_core-%d", i);
else
scnprintf(buf, sizeof(buf), "Decomp_core-%d",
i - HZIP_COMP_CORE_NUM);
base = qm->io_base + core_offsets[i];
pci_info(qm->pdev, "==>%s:\n", buf);
/* dump last word for dfx regs during control resetting */
for (j = 0; j < core_dfx_regs_num; j++) {
idx = com_dfx_regs_num + i * core_dfx_regs_num + j;
val = readl_relaxed(base + hzip_dump_dfx_regs[j].offset);
if (debug->last_words[idx] != val)
pci_info(qm->pdev, "%s \t= 0x%08x => 0x%08x\n",
hzip_dump_dfx_regs[j].name, debug->last_words[idx], val);
}
}
}
static void hisi_zip_log_hw_error(struct hisi_qm *qm, u32 err_sts)
{
const struct hisi_zip_hw_error *err = zip_hw_error;
@ -860,6 +957,7 @@ static const struct hisi_qm_err_ini hisi_zip_err_ini = {
.close_axi_master_ooo = hisi_zip_close_axi_master_ooo,
.open_sva_prefetch = hisi_zip_open_sva_prefetch,
.close_sva_prefetch = hisi_zip_close_sva_prefetch,
.show_last_dfx_regs = hisi_zip_show_last_dfx_regs,
.err_info_init = hisi_zip_err_info_init,
};
@ -867,6 +965,7 @@ static int hisi_zip_pf_probe_init(struct hisi_zip *hisi_zip)
{
struct hisi_qm *qm = &hisi_zip->qm;
struct hisi_zip_ctrl *ctrl;
int ret;
ctrl = devm_kzalloc(&qm->pdev->dev, sizeof(*ctrl), GFP_KERNEL);
if (!ctrl)
@ -882,7 +981,11 @@ static int hisi_zip_pf_probe_init(struct hisi_zip *hisi_zip)
hisi_qm_dev_err_init(qm);
hisi_zip_debug_regs_clear(qm);
return 0;
ret = hisi_zip_show_last_regs_init(qm);
if (ret)
pci_err(qm->pdev, "Failed to init last word regs!\n");
return ret;
}
static int hisi_zip_qm_init(struct hisi_qm *qm, struct pci_dev *pdev)
@ -1026,6 +1129,7 @@ err_qm_stop:
hisi_qm_stop(qm, QM_NORMAL);
err_dev_err_uninit:
hisi_zip_show_last_regs_uninit(qm);
hisi_qm_dev_err_uninit(qm);
err_qm_uninit:
@ -1047,6 +1151,7 @@ static void hisi_zip_remove(struct pci_dev *pdev)
hisi_zip_debugfs_exit(qm);
hisi_qm_stop(qm, QM_NORMAL);
hisi_zip_show_last_regs_uninit(qm);
hisi_qm_dev_err_uninit(qm);
hisi_zip_qm_uninit(qm);
}