From 40a627cafe02d44d24fa800b1d93c5d17b4649a5 Mon Sep 17 00:00:00 2001
From: Lucas De Marchi <lucas.demarchi@intel.com>
Date: Fri, 26 May 2023 09:43:44 -0700
Subject: [PATCH] drm/xe/debugfs: Dump active workarounds
Add a "workarounds" node in debugfs that can dump all the active
workarounds using the information recorded by rtp infra when those
workarounds were processed.
v2: move workarounds to be reported per-GT
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20230526164358.86393-8-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
drivers/gpu/drm/xe/xe_gt_debugfs.c | 12 ++++++++++++
drivers/gpu/drm/xe/xe_wa.c | 17 +++++++++++++++++
drivers/gpu/drm/xe/xe_wa.h | 2 ++
3 files changed, 31 insertions(+)
diff --git a/drivers/gpu/drm/xe/xe_gt_debugfs.c b/drivers/gpu/drm/xe/xe_gt_debugfs.c
index 8bf441e850a0..339ecd5fad9b 100644
--- a/drivers/gpu/drm/xe/xe_gt_debugfs.c
+++ b/drivers/gpu/drm/xe/xe_gt_debugfs.c
@@ -19,6 +19,7 @@
#include "xe_reg_sr.h"
#include "xe_reg_whitelist.h"
#include "xe_uc_debugfs.h"
+#include "xe_wa.h"
static struct xe_gt *node_to_gt(struct drm_info_node *node)
{
@@ -127,6 +128,16 @@ static int register_save_restore(struct seq_file *m, void *data)
return 0;
}
+static int workarounds(struct seq_file *m, void *data)
+{
+ struct xe_gt *gt = node_to_gt(m->private);
+ struct drm_printer p = drm_seq_file_printer(m);
+
+ xe_wa_dump(gt, &p);
+
+ return 0;
+}
+
static const struct drm_info_list debugfs_list[] = {
{"hw_engines", hw_engines, 0},
{"force_reset", force_reset, 0},
@@ -135,6 +146,7 @@ static const struct drm_info_list debugfs_list[] = {
{"steering", steering, 0},
{"ggtt", ggtt, 0},
{"register-save-restore", register_save_restore, 0},
+ {"workarounds", workarounds, 0},
};
void xe_gt_debugfs_register(struct xe_gt *gt)
diff --git a/drivers/gpu/drm/xe/xe_wa.c b/drivers/gpu/drm/xe/xe_wa.c
index 665714abc5f0..910579453316 100644
--- a/drivers/gpu/drm/xe/xe_wa.c
+++ b/drivers/gpu/drm/xe/xe_wa.c
@@ -651,3 +651,20 @@ int xe_wa_init(struct xe_gt *gt)
return 0;
}
+
+void xe_wa_dump(struct xe_gt *gt, struct drm_printer *p)
+{
+ size_t idx;
+
+ drm_printf(p, "GT Workarounds\n");
+ for_each_set_bit(idx, gt->wa_active.gt, ARRAY_SIZE(gt_was))
+ drm_printf_indent(p, 1, "%s\n", gt_was[idx].name);
+
+ drm_printf(p, "\nEngine Workarounds\n");
+ for_each_set_bit(idx, gt->wa_active.engine, ARRAY_SIZE(engine_was))
+ drm_printf_indent(p, 1, "%s\n", engine_was[idx].name);
+
+ drm_printf(p, "\nLRC Workarounds\n");
+ for_each_set_bit(idx, gt->wa_active.lrc, ARRAY_SIZE(lrc_was))
+ drm_printf_indent(p, 1, "%s\n", lrc_was[idx].name);
+}
diff --git a/drivers/gpu/drm/xe/xe_wa.h b/drivers/gpu/drm/xe/xe_wa.h
index eae05bcecc68..defefa5d9611 100644
--- a/drivers/gpu/drm/xe/xe_wa.h
+++ b/drivers/gpu/drm/xe/xe_wa.h
@@ -6,6 +6,7 @@
#ifndef _XE_WA_
#define _XE_WA_
+struct drm_printer;
struct xe_gt;
struct xe_hw_engine;
@@ -15,5 +16,6 @@ void xe_wa_process_engine(struct xe_hw_engine *hwe);
void xe_wa_process_lrc(struct xe_hw_engine *hwe);
void xe_reg_whitelist_process_engine(struct xe_hw_engine *hwe);
+void xe_wa_dump(struct xe_gt *gt, struct drm_printer *p);
#endif