diff options
Diffstat (limited to 'drivers/misc/habanalabs/debugfs.c')
| -rw-r--r-- | drivers/misc/habanalabs/debugfs.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/debugfs.c b/drivers/misc/habanalabs/debugfs.c index 756d36ed5d95..3c8dcdfba20c 100644 --- a/drivers/misc/habanalabs/debugfs.c +++ b/drivers/misc/habanalabs/debugfs.c @@ -970,6 +970,98 @@ static ssize_t hl_device_write(struct file *f, const char __user *buf, return count; } +static ssize_t hl_clk_gate_read(struct file *f, char __user *buf, + size_t count, loff_t *ppos) +{ + struct hl_dbg_device_entry *entry = file_inode(f)->i_private; + struct hl_device *hdev = entry->hdev; + char tmp_buf[200]; + ssize_t rc; + + if (*ppos) + return 0; + + sprintf(tmp_buf, "%d\n", hdev->clock_gating); + rc = simple_read_from_buffer(buf, strlen(tmp_buf) + 1, ppos, tmp_buf, + strlen(tmp_buf) + 1); + + return rc; +} + +static ssize_t hl_clk_gate_write(struct file *f, const char __user *buf, + size_t count, loff_t *ppos) +{ + struct hl_dbg_device_entry *entry = file_inode(f)->i_private; + struct hl_device *hdev = entry->hdev; + u32 value; + ssize_t rc; + + if (atomic_read(&hdev->in_reset)) { + dev_warn_ratelimited(hdev->dev, + "Can't change clock gating during reset\n"); + return 0; + } + + rc = kstrtouint_from_user(buf, count, 10, &value); + if (rc) + return rc; + + if (value) { + hdev->clock_gating = 1; + if (hdev->asic_funcs->enable_clock_gating) + hdev->asic_funcs->enable_clock_gating(hdev); + } else { + if (hdev->asic_funcs->disable_clock_gating) + hdev->asic_funcs->disable_clock_gating(hdev); + hdev->clock_gating = 0; + } + + return count; +} + +static ssize_t hl_stop_on_err_read(struct file *f, char __user *buf, + size_t count, loff_t *ppos) +{ + struct hl_dbg_device_entry *entry = file_inode(f)->i_private; + struct hl_device *hdev = entry->hdev; + char tmp_buf[200]; + ssize_t rc; + + if (*ppos) + return 0; + + sprintf(tmp_buf, "%d\n", hdev->stop_on_err); + rc = simple_read_from_buffer(buf, strlen(tmp_buf) + 1, ppos, tmp_buf, + strlen(tmp_buf) + 1); + + return rc; +} + +static ssize_t hl_stop_on_err_write(struct file *f, const char __user *buf, + size_t count, loff_t *ppos) +{ + struct hl_dbg_device_entry *entry = file_inode(f)->i_private; + struct hl_device *hdev = entry->hdev; + u32 value; + ssize_t rc; + + if (atomic_read(&hdev->in_reset)) { + dev_warn_ratelimited(hdev->dev, + "Can't change stop on error during reset\n"); + return 0; + } + + rc = kstrtouint_from_user(buf, count, 10, &value); + if (rc) + return rc; + + hdev->stop_on_err = value ? 1 : 0; + + hl_device_reset(hdev, false, false); + + return count; +} + static const struct file_operations hl_data32b_fops = { .owner = THIS_MODULE, .read = hl_data_read32, @@ -1015,6 +1107,18 @@ static const struct file_operations hl_device_fops = { .write = hl_device_write }; +static const struct file_operations hl_clk_gate_fops = { + .owner = THIS_MODULE, + .read = hl_clk_gate_read, + .write = hl_clk_gate_write +}; + +static const struct file_operations hl_stop_on_err_fops = { + .owner = THIS_MODULE, + .read = hl_stop_on_err_read, + .write = hl_stop_on_err_write +}; + static const struct hl_info_list hl_debugfs_list[] = { {"command_buffers", command_buffers_show, NULL}, {"command_submission", command_submission_show, NULL}, @@ -1152,6 +1256,18 @@ void hl_debugfs_add_device(struct hl_device *hdev) dev_entry, &hl_device_fops); + debugfs_create_file("clk_gate", + 0200, + dev_entry->root, + dev_entry, + &hl_clk_gate_fops); + + debugfs_create_file("stop_on_err", + 0644, + dev_entry->root, + dev_entry, + &hl_stop_on_err_fops); + for (i = 0, entry = dev_entry->entry_arr ; i < count ; i++, entry++) { ent = debugfs_create_file(hl_debugfs_list[i].name, |