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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 3/8] i915/gvt: use DEFINE_DYNAMIC_DEBUG_CATEGORIES to create "gvt:core:" etc categories
Date: Tue, 31 Aug 2021 14:21:28 -0600	[thread overview]
Message-ID: <20210831202133.2165222-4-jim.cromie@gmail.com> (raw)
In-Reply-To: <20210831202133.2165222-1-jim.cromie@gmail.com>

The gvt component of this driver has ~120 pr_debugs, in 9 categories
quite similar to those in DRM.  Following the interface model of
drm.debug, add a parameter to map bits to these categorizations.

DEFINE_DYNAMIC_DEBUG_CATEGORIES(debug_gvt, __gvt_debug,
	"dyndbg bitmap desc",
	{ "gvt:cmd: ",  "command processing" },
	{ "gvt:core: ", "core help" },
	{ "gvt:dpy: ",  "display help" },
	{ "gvt:el: ",   "help" },
	{ "gvt:irq: ",  "help" },
	{ "gvt:mm: ",   "help" },
	{ "gvt:mmio: ", "help" },
	{ "gvt:render: ", "help" },
	{ "gvt:sched: " "help" });

The actual patch has a few details different, cmd_help() macro emits
the initialization construct.

if CONFIG_DRM_USE_DYNAMIC_DEBUG, then -DDYNAMIC_DEBUG_MODULE is added
cflags, by gvt/Makefile.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
---
v5:
. static decl of vector of bit->class descriptors - Emil.V
. relocate gvt-makefile chunk from elsewhere
v7:
. move ccflags addition up to i915/Makefile from i915/gvt
---
 drivers/gpu/drm/i915/Makefile      |  4 ++++
 drivers/gpu/drm/i915/i915_params.c | 35 ++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)

diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 4f22cac1c49b..5a4e371a3ec2 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -30,6 +30,10 @@ CFLAGS_display/intel_fbdev.o = $(call cc-disable-warning, override-init)
 
 subdir-ccflags-y += -I$(srctree)/$(src)
 
+#ifdef CONFIG_DRM_USE_DYNAMIC_DEBUG
+ccflags-y += -DDYNAMIC_DEBUG_MODULE
+#endif
+
 # Please keep these build lists sorted!
 
 # core driver code
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
index e07f4cfea63a..e645e149485e 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -265,3 +265,38 @@ void i915_params_free(struct i915_params *params)
 	I915_PARAMS_FOR_EACH(FREE);
 #undef FREE
 }
+
+#ifdef CONFIG_DRM_USE_DYNAMIC_DEBUG
+/* todo: needs DYNAMIC_DEBUG_MODULE in some cases */
+
+unsigned long __gvt_debug;
+EXPORT_SYMBOL(__gvt_debug);
+
+#define _help(key)	"\t    \"" key "\"\t: help for " key "\n"
+
+#define I915_GVT_CATEGORIES(name) \
+	" Enable debug output via /sys/module/i915/parameters/" #name	\
+	", where each bit enables a debug category.\n"			\
+	_help("gvt:cmd:")						\
+	_help("gvt:core:")						\
+	_help("gvt:dpy:")						\
+	_help("gvt:el:")						\
+	_help("gvt:irq:")						\
+	_help("gvt:mm:")						\
+	_help("gvt:mmio:")						\
+	_help("gvt:render:")						\
+	_help("gvt:sched:")
+
+DEFINE_DYNAMIC_DEBUG_CATEGORIES(debug_gvt, __gvt_debug,
+				I915_GVT_CATEGORIES(debug_gvt),
+				_DD_cat_("gvt:cmd:"),
+				_DD_cat_("gvt:core:"),
+				_DD_cat_("gvt:dpy:"),
+				_DD_cat_("gvt:el:"),
+				_DD_cat_("gvt:irq:"),
+				_DD_cat_("gvt:mm:"),
+				_DD_cat_("gvt:mmio:"),
+				_DD_cat_("gvt:render:"),
+				_DD_cat_("gvt:sched:"));
+
+#endif
-- 
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 ` Jim Cromie [this message]
2021-09-03 11:07   ` [Intel-gfx] [PATCH v7 3/8] i915/gvt: use DEFINE_DYNAMIC_DEBUG_CATEGORIES to create "gvt:core:" etc categories 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 ` [PATCH v7 4/8] amdgpu: use DEFINE_DYNAMIC_DEBUG_CATEGORIES Jim Cromie
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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