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From: Jim Cromie <jim.cromie@gmail.com>
To: jbaron@akamai.com, gregkh@linuxfoundation.org,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	amd-gfx@lists.freedesktop.org,
	intel-gvt-dev@lists.freedesktop.org,
	intel-gfx@lists.freedesktop.org
Cc: Jim Cromie <jim.cromie@gmail.com>
Subject: [PATCH v7 4/8] amdgpu: use DEFINE_DYNAMIC_DEBUG_CATEGORIES
Date: Tue, 31 Aug 2021 14:21:29 -0600	[thread overview]
Message-ID: <20210831202133.2165222-5-jim.cromie@gmail.com> (raw)
In-Reply-To: <20210831202133.2165222-1-jim.cromie@gmail.com>

logger_types.h defines many DC_LOG_*() categorized debug wrappers.
Most of these use DRM debug API, so are controllable using drm.debug,
but others use bare pr_debug("$prefix: .."), each with a different
class-prefix matching "^\[\w+\]:"

Use DEFINE_DYNAMIC_DEBUG_CATEGORIES to create a /sys debug_dc
parameter, modinfos, and to specify a map from bits -> categorized
pr_debugs to be controlled.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
---
 .../gpu/drm/amd/display/dc/core/dc_debug.c    | 44 ++++++++++++++++++-
 1 file changed, 43 insertions(+), 1 deletion(-)

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 21be2a684393..9fd43254db88 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_debug.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_debug.c
@@ -36,8 +36,50 @@
 
 #include "resource.h"
 
-#define DC_LOGGER_INIT(logger)
+#ifdef CONFIG_DRM_USE_DYNAMIC_DEBUG
+/* define a drm.debug style dyndbg pr-debug control point */
+#include <linux/dynamic_debug.h>
+
+unsigned long __debug_dc;
+EXPORT_SYMBOL(__debug_dc);
+
+#define _help_(key)	"\t   " key "\t- help for " key "\n"
+
+/* Id like to do these inside DEFINE_DYNAMIC_DEBUG_CATEGORIES, if possible */
+#define DC_DYNDBG_BITMAP_DESC(name)					\
+	"Control pr_debugs via /sys/module/amdgpu/parameters/" #name	\
+	", where each bit controls a debug category.\n"			\
+	_help_("[SURFACE]:")						\
+	_help_("[CURSOR]:")						\
+	_help_("[PFLIP]:")						\
+	_help_("[VBLANK]:")						\
+	_help_("[HW_LINK_TRAINING]:")					\
+	_help_("[HW_AUDIO]:")						\
+	_help_("[SCALER]:")						\
+	_help_("[BIOS]:")						\
+	_help_("[BANDWIDTH_CALCS]:")					\
+	_help_("[DML]:")						\
+	_help_("[IF_TRACE]:")						\
+	_help_("[GAMMA]:")						\
+	_help_("[SMU_MSG]:")
+
+DEFINE_DYNAMIC_DEBUG_CATEGORIES(debug_dc, __debug_dc,
+	DC_DYNDBG_BITMAP_DESC(debug_dc),
+	_DD_cat_("[CURSOR]:"),
+	_DD_cat_("[PFLIP]:"),
+	_DD_cat_("[VBLANK]:"),
+	_DD_cat_("[HW_LINK_TRAINING]:"),
+	_DD_cat_("[HW_AUDIO]:"),
+	_DD_cat_("[SCALER]:"),
+	_DD_cat_("[BIOS]:"),
+	_DD_cat_("[BANDWIDTH_CALCS]:"),
+	_DD_cat_("[DML]:"),
+	_DD_cat_("[IF_TRACE]:"),
+	_DD_cat_("[GAMMA]:"),
+	_DD_cat_("[SMU_MSG]:"));
+#endif
 
+#define DC_LOGGER_INIT(logger)
 
 #define SURFACE_TRACE(...) do {\
 		if (dc->debug.surface_trace) \
-- 
2.31.1


  parent reply	other threads:[~2021-08-31 20:21 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-31 20:21 [PATCH v7 0/8] use DYNAMIC_DEBUG to implement DRM.debug Jim Cromie
2021-08-31 20:21 ` [PATCH v7 1/8] dyndbg: add DEFINE_DYNAMIC_DEBUG_CATEGORIES and callbacks Jim Cromie
2021-08-31 20:21 ` [PATCH v7 2/8] dyndbg: remove spaces in pr_debug "gvt: core:" etc prefixes Jim Cromie
2021-08-31 20:21 ` [PATCH v7 3/8] i915/gvt: use DEFINE_DYNAMIC_DEBUG_CATEGORIES to create "gvt:core:" etc categories Jim Cromie
2021-09-03 11:07   ` [Intel-gfx] " Tvrtko Ursulin
2021-09-03 19:22     ` jim.cromie
2021-09-06 12:26       ` Tvrtko Ursulin
     [not found]         ` <CAJfuBxymoFx79kQzGw_Gxv1vk7kVaTN-V0Hn694C6kT=kP7u2A@mail.gmail.com>
2021-09-07 15:14           ` Tvrtko Ursulin
2021-09-07 17:26             ` jim.cromie
2021-08-31 20:21 ` Jim Cromie [this message]
2021-08-31 20:21 ` [PATCH v7 5/8] drm_print: add choice to use dynamic debug in drm-debug Jim Cromie
2021-09-03 11:15   ` [Intel-gfx] " Tvrtko Ursulin
2021-09-03 21:57     ` jim.cromie
2021-09-06 10:20       ` Tvrtko Ursulin
2021-09-06 18:24         ` jim.cromie
2021-08-31 20:21 ` [PATCH v7 6/8] drm_print: instrument drm_debug_enabled Jim Cromie
2021-09-05 18:50   ` jim.cromie
2021-08-31 20:21 ` [PATCH v7 7/8] amdgpu_ucode: reduce number of pr_debug calls Jim Cromie
2021-08-31 20:21 ` [PATCH v7 8/8] nouveau: fold multiple DRM_DEBUG_DRIVERs together Jim Cromie

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