diff options
Diffstat (limited to 'drivers/crypto/hisilicon/zip/zip_main.c')
| -rw-r--r-- | drivers/crypto/hisilicon/zip/zip_main.c | 34 |
1 files changed, 30 insertions, 4 deletions
diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c index 4438188adbb7..b0b424c9fba1 100644 --- a/drivers/crypto/hisilicon/zip/zip_main.c +++ b/drivers/crypto/hisilicon/zip/zip_main.c @@ -9,6 +9,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/pci.h> +#include <linux/pm_runtime.h> #include <linux/seq_file.h> #include <linux/topology.h> #include <linux/uacce.h> @@ -476,22 +477,33 @@ static ssize_t hisi_zip_ctrl_debug_read(struct file *filp, char __user *buf, size_t count, loff_t *pos) { struct ctrl_debug_file *file = filp->private_data; + struct hisi_qm *qm = file_to_qm(file); char tbuf[HZIP_BUF_SIZE]; u32 val; int ret; + ret = hisi_qm_get_dfx_access(qm); + if (ret) + return ret; + spin_lock_irq(&file->lock); switch (file->index) { case HZIP_CLEAR_ENABLE: val = clear_enable_read(file); break; default: - spin_unlock_irq(&file->lock); - return -EINVAL; + goto err_input; } spin_unlock_irq(&file->lock); + + hisi_qm_put_dfx_access(qm); ret = scnprintf(tbuf, sizeof(tbuf), "%u\n", val); return simple_read_from_buffer(buf, count, pos, tbuf, ret); + +err_input: + spin_unlock_irq(&file->lock); + hisi_qm_put_dfx_access(qm); + return -EINVAL; } static ssize_t hisi_zip_ctrl_debug_write(struct file *filp, @@ -499,6 +511,7 @@ static ssize_t hisi_zip_ctrl_debug_write(struct file *filp, size_t count, loff_t *pos) { struct ctrl_debug_file *file = filp->private_data; + struct hisi_qm *qm = file_to_qm(file); char tbuf[HZIP_BUF_SIZE]; unsigned long val; int len, ret; @@ -517,6 +530,10 @@ static ssize_t hisi_zip_ctrl_debug_write(struct file *filp, if (kstrtoul(tbuf, 0, &val)) return -EFAULT; + ret = hisi_qm_get_dfx_access(qm); + if (ret) + return ret; + spin_lock_irq(&file->lock); switch (file->index) { case HZIP_CLEAR_ENABLE: @@ -528,12 +545,12 @@ static ssize_t hisi_zip_ctrl_debug_write(struct file *filp, ret = -EINVAL; goto err_input; } - spin_unlock_irq(&file->lock); - return count; + ret = count; err_input: spin_unlock_irq(&file->lock); + hisi_qm_put_dfx_access(qm); return ret; } @@ -595,6 +612,7 @@ static int hisi_zip_core_debug_init(struct hisi_qm *qm) regset->regs = hzip_dfx_regs; regset->nregs = ARRAY_SIZE(hzip_dfx_regs); regset->base = qm->io_base + core_offsets[i]; + regset->dev = dev; tmp_d = debugfs_create_dir(buf, qm->debug.debug_root); debugfs_create_file("regs", 0444, tmp_d, regset, @@ -934,6 +952,8 @@ static int hisi_zip_probe(struct pci_dev *pdev, const struct pci_device_id *id) goto err_qm_alg_unregister; } + hisi_qm_pm_init(qm); + return 0; err_qm_alg_unregister: @@ -956,6 +976,7 @@ static void hisi_zip_remove(struct pci_dev *pdev) { struct hisi_qm *qm = pci_get_drvdata(pdev); + hisi_qm_pm_uninit(qm); hisi_qm_wait_task_finish(qm, &zip_devices); hisi_qm_alg_unregister(qm, &zip_devices); @@ -968,6 +989,10 @@ static void hisi_zip_remove(struct pci_dev *pdev) hisi_zip_qm_uninit(qm); } +static const struct dev_pm_ops hisi_zip_pm_ops = { + SET_RUNTIME_PM_OPS(hisi_qm_suspend, hisi_qm_resume, NULL) +}; + static const struct pci_error_handlers hisi_zip_err_handler = { .error_detected = hisi_qm_dev_err_detected, .slot_reset = hisi_qm_dev_slot_reset, @@ -984,6 +1009,7 @@ static struct pci_driver hisi_zip_pci_driver = { hisi_qm_sriov_configure : NULL, .err_handler = &hisi_zip_err_handler, .shutdown = hisi_qm_dev_shutdown, + .driver.pm = &hisi_zip_pm_ops, }; static void hisi_zip_register_debugfs(void) |