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bh=/xTYPYnZKw/zn+lOtwqN18Xw/4DC/6wvSFiErohen68=; b=fTvLOCLMW7t/4Cownp9qgl1DU8iAAZCA1WTooZGWaI+ylJWOBj8OIAPNDqubnsC9qkYqX9 fLopFVhkHwAcR6otIO9lrARb4Mbc049TJgd6bXyKCiNvcJgby2MZzCiCAA1enx6Qv6zk0a 00IhKyCPzYfuamdc9IKM2NCFrWeiTsEIazlieryIaAFTl+ppjdKU0246YtgI69rUzGseHr 7st7FdaaKZhngrfs1H0cATFW7j5A/Enl2K023jPf4F+xkvf+Ywvrs5edWx0ysxxSpY5H5O ugOxVb8Uo3kEXa2bGCnHaOvJLzJZ1e1DwUP3QD04q7eWF7JAKil0c1csG8kIHg== Message-ID: <82885419-a39a-4268-aa9a-7b0a8e04a46d@bootlin.com> Date: Mon, 24 Mar 2025 16:23:48 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Louis Chauvet Subject: Re: [PATCH v2 36/59] drm-dyndbg: adapt drm core to use dyndbg classmaps-v2 To: Jim Cromie , 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, intel-gfx-trybot@lists.freedesktop.org Cc: jbaron@akamai.com, gregkh@linuxfoundation.org, ukaszb@chromium.org, daniel.vetter@ffwll.ch, tvrtko.ursulin@linux.intel.com, jani.nikula@intel.com, ville.syrjala@linux.intel.com References: <20250320185238.447458-1-jim.cromie@gmail.com> <20250320185238.447458-37-jim.cromie@gmail.com> Content-Language: en-US Autocrypt: addr=louis.chauvet@bootlin.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-GND-State: clean X-GND-Score: -100 X-GND-Cause: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgdduiedtudefucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuifetpfffkfdpucggtfgfnhhsuhgsshgtrhhisggvnecuuegrihhlohhuthemuceftddunecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefkffggfgfhuffvvehfjggtgfesthekredttddvjeenucfhrhhomhepnfhouhhishcuvehhrghuvhgvthcuoehlohhuihhsrdgthhgruhhvvghtsegsohhothhlihhnrdgtohhmqeenucggtffrrghtthgvrhhnpeetfffhtdeigfehffduuedvkeefgfdvuddugfffteetffdvteffgfejvedugffgffenucffohhmrghinhepsghoohhtlhhinhdrtghomhenucfkphepledtrdekledrudeifedruddvjeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpeeltddrkeelrdduieefrdduvdejpdhhvghloheplgduledvrdduieekrddtrddvtdgnpdhmrghilhhfrhhomheplhhouhhishdrtghhrghuvhgvthessghoohhtlhhinhdrtghomhdpnhgspghrtghpthhtohepudegpdhrtghpthhtohepjhhimhdrtghrohhmihgvsehgmhgrihhlrdgtohhmpdhrtghpthhtoheplhhinhhugidqkhgvrhhnvghlsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtohepughrihdquggvvhgvlheslhhishhtshdrfhhrvggvuggvshhkthhophdrohhrghdprhgtphhtthhopegrmhguqdhgfhigsehlihhsthhsr dhfrhgvvgguvghskhhtohhprdhorhhgpdhrtghpthhtohepihhnthgvlhdqghhvthdquggvvheslhhishhtshdrfhhrvggvuggvshhkthhophdrohhrghdprhgtphhtthhopehinhhtvghlqdhgfhigsehlihhsthhsrdhfrhgvvgguvghskhhtohhprdhorhhgpdhrtghpthhtohepihhnthgvlhdqghhfgidqthhrhigsohhtsehlihhsthhsrdhfrhgvvgguvghskhhtohhprdhorhhgpdhrtghpthhtohepjhgsrghrohhnsegrkhgrmhgrihdrtghomh X-GND-Sasl: louis.chauvet@bootlin.com Le 20/03/2025 à 19:52, Jim Cromie a écrit : > dyndbg's CLASSMAP-v1 api was broken; DECLARE_DYNDBG_CLASSMAP tried to > do too much. Its replaced by DRM_CLASSMAP_DEFINE, which creates & > EXPORTs a classmap (in DRM core), and DRM_CLASSMAP_USE which refers to > the classmap defined elsewhere. > > The drivers still use DECLARE_DYNDBG_CLASSMAP for now, so they still > redundantly re-declare the classmap, but we can convert the drivers > later to DYNDBG_CLASSMAP_USE > > Signed-off-by: Jim Cromie Reviewed-by: Louis Chauvet > --- > this ignores a checkpatch > WARNING: Argument 'name' is not used in function-like macro > #70: FILE: include/drm/drm_print.h:148: > +#define DRM_CLASSMAP_USE(name) > > the macro is empty, and correct. only 1 arg is expected. The patch to remove this warning is before, so I think this is not an issue anymore. > --- > drivers/gpu/drm/drm_print.c | 25 +++++++++++++------------ > include/drm/drm_print.h | 8 ++++++++ > 2 files changed, 21 insertions(+), 12 deletions(-) > > diff --git a/drivers/gpu/drm/drm_print.c b/drivers/gpu/drm/drm_print.c > index 79517bd4418f..a3b70d104afa 100644 > --- a/drivers/gpu/drm/drm_print.c > +++ b/drivers/gpu/drm/drm_print.c > @@ -55,18 +55,19 @@ MODULE_PARM_DESC(debug, "Enable debug output, where each bit enables a debug cat > #if !defined(CONFIG_DRM_USE_DYNAMIC_DEBUG) > module_param_named(debug, __drm_debug, ulong, 0600); > #else > -/* classnames must match vals of enum drm_debug_category */ > -DECLARE_DYNDBG_CLASSMAP(drm_debug_classes, DD_CLASS_TYPE_DISJOINT_BITS, 0, > - "DRM_UT_CORE", > - "DRM_UT_DRIVER", > - "DRM_UT_KMS", > - "DRM_UT_PRIME", > - "DRM_UT_ATOMIC", > - "DRM_UT_VBL", > - "DRM_UT_STATE", > - "DRM_UT_LEASE", > - "DRM_UT_DP", > - "DRM_UT_DRMRES"); > +/* classnames must match value-symbols of enum drm_debug_category */ > +DRM_CLASSMAP_DEFINE(drm_debug_classes, DD_CLASS_TYPE_DISJOINT_BITS, > + DRM_UT_CORE, > + "DRM_UT_CORE", > + "DRM_UT_DRIVER", > + "DRM_UT_KMS", > + "DRM_UT_PRIME", > + "DRM_UT_ATOMIC", > + "DRM_UT_VBL", > + "DRM_UT_STATE", > + "DRM_UT_LEASE", > + "DRM_UT_DP", > + "DRM_UT_DRMRES"); > > static struct ddebug_class_param drm_debug_bitmap = { > .bits = &__drm_debug, > diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h > index 9732f514566d..e86ebb716b4c 100644 > --- a/include/drm/drm_print.h > +++ b/include/drm/drm_print.h > @@ -141,6 +141,14 @@ enum drm_debug_category { > DRM_UT_DRMRES > }; > > +#ifdef CONFIG_DRM_USE_DYNAMIC_DEBUG > +#define DRM_CLASSMAP_DEFINE(...) DYNAMIC_DEBUG_CLASSMAP_DEFINE(__VA_ARGS__) > +#define DRM_CLASSMAP_USE(name) DYNAMIC_DEBUG_CLASSMAP_USE(name) > +#else > +#define DRM_CLASSMAP_DEFINE(...) > +#define DRM_CLASSMAP_USE(name) > +#endif > + > static inline bool drm_debug_enabled_raw(enum drm_debug_category category) > { > return unlikely(__drm_debug & BIT(category)); -- Louis Chauvet, Bootlin Embedded Linux and Kernel engineering https://bootlin.com