From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 79627801 for ; Thu, 19 Dec 2024 13:06:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734613605; cv=none; b=NIDhW2lCVMfKJgzeKuLfM2r7PfEsNevhuAjmAP8gqZiBQGzrsxRhagvbNwc0PKYEANPpfnqm/xdIBigCByxQUxaj+Ykhskkpfubfr33RqXu1+Po3DfxgV94qzNGSzamUavKVxzzRrnbAMBwu/qWYf4nQ34ijg5fyB/RZt0AX93M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734613605; c=relaxed/simple; bh=Ha7tQGbm+GngeaH7ggzWEMLIhEPK9IKw+ZTJtZUAs6I=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=HxdYex4bciPof9bpvVzZFPytCluPJuiVgS/+6jO/lS5m9ClbTOMcoeksPALuYBTtkpQyJrhhoAXDHVy/4jB25VcZjWN5zo5Q2N7oO80N1KEKNbHFCYw0EBWpQhEXNmJvmvbcBvVmtce+4OFNr0P4scpy08sjMLUPCe1vX8e8itI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 89CF51758 for ; Thu, 19 Dec 2024 05:07:05 -0800 (PST) Received: from e110455-lin.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 44DAF3F528 for ; Thu, 19 Dec 2024 05:06:37 -0800 (PST) Date: Thu, 19 Dec 2024 13:06:26 +0000 From: Liviu Dudau To: =?utf-8?B?QWRyacOhbiBNYXJ0w61uZXo=?= Larumbe Cc: Boris Brezillon , Steven Price , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Mihail Atanassov ; Subject: Re: [PATCH v5 2/2] Documentation/gpu: Add fdinfo meanings of drm-*-internal memory tags Message-ID: References: <20241218181844.886043-1-adrian.larumbe@collabora.com> <20241218181844.886043-3-adrian.larumbe@collabora.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20241218181844.886043-3-adrian.larumbe@collabora.com> On Thu, Dec 19, 2024 at 02:18:42AM +0800, Adrián Martínez Larumbe wrote: > From: Adrián Larumbe > > A previous commit enabled display of driver-internal kernel BO sizes > through the device file's fdinfo interface. > > Expand the description of the relevant driver-specific key:value pairs > with the definitions of the new drm-*-internal ones. > > Signed-off-by: Adrián Larumbe > Reviewed-by: Mihail Atanassov Reviewed-by: Liviu Dudau Best regards, Liviu > --- > Documentation/gpu/panthor.rst | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/Documentation/gpu/panthor.rst b/Documentation/gpu/panthor.rst > index 3f8979fa2b86..23aa3d67c9d2 100644 > --- a/Documentation/gpu/panthor.rst > +++ b/Documentation/gpu/panthor.rst > @@ -26,6 +26,10 @@ the currently possible format options: > drm-cycles-panthor: 94439687187 > drm-maxfreq-panthor: 1000000000 Hz > drm-curfreq-panthor: 1000000000 Hz > + drm-total-internal: 10396 KiB > + drm-shared-internal: 0 > + drm-active-internal: 10396 KiB > + drm-resident-internal: 10396 KiB > drm-total-memory: 16480 KiB > drm-shared-memory: 0 > drm-active-memory: 16200 KiB > @@ -44,3 +48,13 @@ driver by writing into the appropriate sysfs node:: > > Where `N` is a bit mask where cycle and timestamp sampling are respectively > enabled by the first and second bits. > + > +Possible `drm-*-internal` keys are: `total`, `active`, `resident` and `shared`. > +These values convey the sizes of the internal driver-owned shmem BO's that > +aren't exposed to user-space through a DRM handle, like queue ring buffers, > +sync object arrays and heap chunks. Because they are all allocated and pinned > +at creation time, `drm-resident-internal` and `drm-total-internal` should always > +be equal. `drm-active-internal` shows the size of kernel BO's associated with > +VM's and groups currently being scheduled for execution by the GPU. > +`drm-shared-internal` is unused at present, but in the future it might stand for > +the size of executable FW regions, since they do not belong to an open file context. > -- > 2.47.0 > -- ==================== | I would like to | | fix the world, | | but they're not | | giving me the | \ source code! / --------------- ¯\_(ツ)_/¯