linux-kernel - [PATCH v10 10/10] drm: use DEFINE_DYNAMIC_DEBUG_TRACE

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Message-Id: <20211105192637.2370737-11-jim.cromie@gmail.com>
Date:   Fri,  5 Nov 2021 13:26:37 -0600
From:   Jim Cromie <jim.cromie@...il.com>
To:     jbaron@...mai.com, gregkh@...uxfoundation.org,
        linux-kernel@...r.kernel.org, robdclark@...il.com, sean@...rly.run,
        daniel.vetter@...ll.ch, seanpaul@...omium.org, lyude@...hat.com,
        dri-devel@...ts.freedesktop.org, amd-gfx@...ts.freedesktop.org,
        intel-gvt-dev@...ts.freedesktop.org,
        intel-gfx@...ts.freedesktop.org
Cc:     Jim Cromie <jim.cromie@...il.com>
Subject: [PATCH v10 10/10] drm: use DEFINE_DYNAMIC_DEBUG_TRACE_GROUPS in 3 places

add sysfs knobs to enable modules' pr_debug()s ---> tracefs

Signed-off-by: Jim Cromie <jim.cromie@...il.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_debug.c |  8 ++++++++
 drivers/gpu/drm/drm_print.c                    | 13 ++++++++++---
 drivers/gpu/drm/i915/intel_gvt.c               | 15 ++++++++++++---
 3 files changed, 30 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_debug.c b/drivers/gpu/drm/amd/display/dc/core/dc_debug.c
index e49a755c6a69..58c56c1708e7 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_debug.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_debug.c
@@ -80,6 +80,14 @@ DEFINE_DYNAMIC_DEBUG_LOG_GROUPS(debug_dc, __debug_dc,
 				DC_DYNDBG_BITMAP_DESC(debug_dc),
 				amdgpu_bitmap);
 
+#if defined(CONFIG_TRACING)
+
+unsigned long __trace_dc;
+EXPORT_SYMBOL(__trace_dc);
+DEFINE_DYNAMIC_DEBUG_LOG_GROUPS(trace_dc, __trace_dc,
+				DC_DYNDBG_BITMAP_DESC(trace_dc),
+				amdgpu_bitmap);
+#endif
 #endif
 
 #define DC_LOGGER_INIT(logger)
diff --git a/drivers/gpu/drm/drm_print.c b/drivers/gpu/drm/drm_print.c
index d5e0ffad467b..ee20e9c14ce9 100644
--- a/drivers/gpu/drm/drm_print.c
+++ b/drivers/gpu/drm/drm_print.c
@@ -72,9 +72,16 @@ static struct dyndbg_bitdesc drm_dyndbg_bitmap[] = {
 	[8] = { DRM_DBG_CAT_DP },
 	[9] = { DRM_DBG_CAT_DRMRES }
 };
-DEFINE_DYNAMIC_DEBUG_BITGRPS(debug, __drm_debug, DRM_DEBUG_DESC,
-			     drm_dyndbg_bitmap);
-
+DEFINE_DYNAMIC_DEBUG_LOG_GROUPS(debug, __drm_debug, DRM_DEBUG_DESC,
+				drm_dyndbg_bitmap);
+
+#ifdef CONFIG_TRACING
+struct trace_array *trace_arr;
+unsigned long __drm_trace;
+EXPORT_SYMBOL(__drm_trace);
+DEFINE_DYNAMIC_DEBUG_TRACE_GROUPS(trace, __drm_trace, DRM_DEBUG_DESC,
+				  drm_dyndbg_bitmap);
+#endif
 #endif
 
 void __drm_puts_coredump(struct drm_printer *p, const char *str)
diff --git a/drivers/gpu/drm/i915/intel_gvt.c b/drivers/gpu/drm/i915/intel_gvt.c
index efaac5777873..84348d4aedf6 100644
--- a/drivers/gpu/drm/i915/intel_gvt.c
+++ b/drivers/gpu/drm/i915/intel_gvt.c
@@ -195,8 +195,17 @@ static struct dyndbg_bitdesc i915_dyndbg_bitmap[] = {
 	help_(7, "gvt:render:")						\
 	help_(8, "gvt:sched:")
 
-DEFINE_DYNAMIC_DEBUG_BITGRPS(debug_gvt, __gvt_debug,
-			     I915_GVT_CATEGORIES(debug_gvt),
-			     i915_dyndbg_bitmap);
+DEFINE_DYNAMIC_DEBUG_LOG_GROUPS(debug_gvt, __gvt_debug,
+				I915_GVT_CATEGORIES(debug_gvt),
+				i915_dyndbg_bitmap);
 
+#if defined(CONFIG_TRACING)
+
+unsigned long __gvt_trace;
+EXPORT_SYMBOL(__gvt_trace);
+DEFINE_DYNAMIC_DEBUG_TRACE_GROUPS(trace_gvt, __gvt_trace,
+				  I915_GVT_CATEGORIES(trace_gvt),
+				  i915_dyndbg_bitmap);
+
+#endif
 #endif
-- 
2.31.1