diff options
Diffstat (limited to 'drivers/gpu/drm/xe/xe_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_debugfs.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_debugfs.c b/drivers/gpu/drm/xe/xe_debugfs.c index 0b7aebaae843..1011e5d281fa 100644 --- a/drivers/gpu/drm/xe/xe_debugfs.c +++ b/drivers/gpu/drm/xe/xe_debugfs.c @@ -12,7 +12,10 @@ #include "xe_bo.h" #include "xe_device.h" +#include "xe_force_wake.h" #include "xe_gt_debugfs.h" +#include "xe_gt_printk.h" +#include "xe_guc_ads.h" #include "xe_pm.h" #include "xe_sriov.h" #include "xe_step.h" @@ -118,6 +121,58 @@ static const struct file_operations forcewake_all_fops = { .release = forcewake_release, }; +static ssize_t wedged_mode_show(struct file *f, char __user *ubuf, + size_t size, loff_t *pos) +{ + struct xe_device *xe = file_inode(f)->i_private; + char buf[32]; + int len = 0; + + len = scnprintf(buf, sizeof(buf), "%d\n", xe->wedged.mode); + + return simple_read_from_buffer(ubuf, size, pos, buf, len); +} + +static ssize_t wedged_mode_set(struct file *f, const char __user *ubuf, + size_t size, loff_t *pos) +{ + struct xe_device *xe = file_inode(f)->i_private; + struct xe_gt *gt; + u32 wedged_mode; + ssize_t ret; + u8 id; + + ret = kstrtouint_from_user(ubuf, size, 0, &wedged_mode); + if (ret) + return ret; + + if (wedged_mode > 2) + return -EINVAL; + + if (xe->wedged.mode == wedged_mode) + return 0; + + xe->wedged.mode = wedged_mode; + + xe_pm_runtime_get(xe); + for_each_gt(gt, xe, id) { + ret = xe_guc_ads_scheduler_policy_toggle_reset(>->uc.guc.ads); + if (ret) { + xe_gt_err(gt, "Failed to update GuC ADS scheduler policy. GuC may still cause engine reset even with wedged_mode=2\n"); + return -EIO; + } + } + xe_pm_runtime_put(xe); + + return size; +} + +static const struct file_operations wedged_mode_fops = { + .owner = THIS_MODULE, + .read = wedged_mode_show, + .write = wedged_mode_set, +}; + void xe_debugfs_register(struct xe_device *xe) { struct ttm_device *bdev = &xe->ttm; @@ -135,6 +190,9 @@ void xe_debugfs_register(struct xe_device *xe) debugfs_create_file("forcewake_all", 0400, root, xe, &forcewake_all_fops); + debugfs_create_file("wedged_mode", 0400, root, xe, + &wedged_mode_fops); + for (mem_type = XE_PL_VRAM0; mem_type <= XE_PL_VRAM1; ++mem_type) { man = ttm_manager_type(bdev, mem_type); |