diff options
Diffstat (limited to 'drivers/gpu/drm/xe/xe_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_debugfs.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/drivers/gpu/drm/xe/xe_debugfs.c b/drivers/gpu/drm/xe/xe_debugfs.c index fe4319eb13fd..492b4877433f 100644 --- a/drivers/gpu/drm/xe/xe_debugfs.c +++ b/drivers/gpu/drm/xe/xe_debugfs.c @@ -90,13 +90,32 @@ static int forcewake_open(struct inode *inode, struct file *file) { struct xe_device *xe = inode->i_private; struct xe_gt *gt; - u8 id; + u8 id, last_gt; + unsigned int fw_ref; xe_pm_runtime_get(xe); - for_each_gt(gt, xe, id) - XE_WARN_ON(xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL)); + for_each_gt(gt, xe, id) { + last_gt = id; + + fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL); + if (!xe_force_wake_ref_has_domain(fw_ref, XE_FORCEWAKE_ALL)) + goto err_fw_get; + } return 0; + +err_fw_get: + for_each_gt(gt, xe, id) { + if (id < last_gt) + xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL); + else if (id == last_gt) + xe_force_wake_put(gt_to_fw(gt), fw_ref); + else + break; + } + + xe_pm_runtime_put(xe); + return -ETIMEDOUT; } static int forcewake_release(struct inode *inode, struct file *file) @@ -106,7 +125,7 @@ static int forcewake_release(struct inode *inode, struct file *file) u8 id; for_each_gt(gt, xe, id) - XE_WARN_ON(xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL)); + xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL); xe_pm_runtime_put(xe); return 0; |