diff options
Diffstat (limited to 'drivers/gpu/drm/xe/xe_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_debugfs.c | 121 |
1 files changed, 105 insertions, 16 deletions
diff --git a/drivers/gpu/drm/xe/xe_debugfs.c b/drivers/gpu/drm/xe/xe_debugfs.c index 01db5b27bec5..d0503959a8ed 100644 --- a/drivers/gpu/drm/xe/xe_debugfs.c +++ b/drivers/gpu/drm/xe/xe_debugfs.c @@ -5,13 +5,21 @@ #include "xe_debugfs.h" +#include <linux/debugfs.h> +#include <linux/fault-inject.h> #include <linux/string_helpers.h> #include <drm/drm_debugfs.h> #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_pxp_debugfs.h" +#include "xe_sriov.h" #include "xe_step.h" #ifdef CONFIG_DRM_XE_DEBUG @@ -20,10 +28,7 @@ #include "xe_vm.h" #endif -#ifdef CONFIG_FAULT_INJECTION -#include <linux/fault-inject.h> /* XXX: fault-inject.h is broken */ DECLARE_FAULT_ATTR(gt_reset_failure); -#endif static struct xe_device *node_to_xe(struct drm_info_node *node) { @@ -37,12 +42,13 @@ static int info(struct seq_file *m, void *data) struct xe_gt *gt; u8 id; + xe_pm_runtime_get(xe); + drm_printf(&p, "graphics_verx100 %d\n", xe->info.graphics_verx100); drm_printf(&p, "media_verx100 %d\n", xe->info.media_verx100); - drm_printf(&p, "stepping G:%s M:%s D:%s B:%s\n", + drm_printf(&p, "stepping G:%s M:%s B:%s\n", xe_step_name(xe->info.step.graphics), xe_step_name(xe->info.step.media), - xe_step_name(xe->info.step.display), xe_step_name(xe->info.step.basedie)); drm_printf(&p, "is_dgfx %s\n", str_yes_no(xe->info.is_dgfx)); drm_printf(&p, "platform %d\n", xe->info.platform); @@ -63,25 +69,54 @@ static int info(struct seq_file *m, void *data) gt->info.engine_mask); } + xe_pm_runtime_put(xe); + return 0; +} + +static int sriov_info(struct seq_file *m, void *data) +{ + struct xe_device *xe = node_to_xe(m->private); + struct drm_printer p = drm_seq_file_printer(m); + + xe_sriov_print_info(xe, &p); return 0; } static const struct drm_info_list debugfs_list[] = { {"info", info, 0}, + { .name = "sriov_info", .show = sriov_info, }, }; 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_device_mem_access_get(xe); + xe_pm_runtime_get(xe); + for_each_gt(gt, xe, id) { + last_gt = id; - for_each_gt(gt, xe, id) - XE_WARN_ON(xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL)); + 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) @@ -91,9 +126,8 @@ 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_device_mem_access_put(xe); + xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL); + xe_pm_runtime_put(xe); return 0; } @@ -104,6 +138,59 @@ 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 size; + + 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"); + xe_pm_runtime_put(xe); + 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; @@ -121,13 +208,16 @@ void xe_debugfs_register(struct xe_device *xe) debugfs_create_file("forcewake_all", 0400, root, xe, &forcewake_all_fops); + debugfs_create_file("wedged_mode", 0600, 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); if (man) { char name[16]; - sprintf(name, "vram%d_mm", mem_type - XE_PL_VRAM0); + snprintf(name, sizeof(name), "vram%d_mm", mem_type - XE_PL_VRAM0); ttm_resource_manager_create_debugfs(man, root, name); } } @@ -142,8 +232,7 @@ void xe_debugfs_register(struct xe_device *xe) for_each_gt(gt, xe, id) xe_gt_debugfs_register(gt); -#ifdef CONFIG_FAULT_INJECTION - fault_create_debugfs_attr("fail_gt_reset", root, >_reset_failure); -#endif + xe_pxp_debugfs_register(xe->pxp); + fault_create_debugfs_attr("fail_gt_reset", root, >_reset_failure); } |