From nobody Mon Dec 1 22:06:12 2025 Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C917632FA3A for ; Thu, 27 Nov 2025 11:51:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.112 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764244276; cv=pass; b=pODnHHIWf88BWSCwCG9RcfMaE9HTOdhRnRIOVrCvdOB5c4lOJ5JAE2qRVGheh62l48pvJd1fQ15htlL62th9bTTfYcZM+9Hr67r6yzAn4zma2aJ1ftaH0fYfFZaBH+nAIJRqQs8oB46fYMW2Jruh9f7hoj7jnJTICrtnwUMh+o4= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764244276; c=relaxed/simple; bh=G8lIlXrBm2GGodWcTQbEwi4jp6FnExnKHqg3Fxz/tow=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=qquJdNoOWJuizVOXIqARnsm24uUcmu4I9whkvYeBTJTsq+WrX27XMsPEIjlpIPZvoVnqcW5YzVUqz/1vnLl8+6/9Lv+YqfuAbHSfSkhl2Wt7/lIkp9UZv5VewrWnMKhk2Bzck01sSvphFb4U6ujLdOJv6TFROcFr5+XaWS5LC/Y= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (1024-bit key) header.d=collabora.com header.i=ashley.smith@collabora.com header.b=Xqw9IEkB; arc=pass smtp.client-ip=136.143.188.112 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=collabora.com header.i=ashley.smith@collabora.com header.b="Xqw9IEkB" ARC-Seal: i=1; a=rsa-sha256; t=1764244255; cv=none; d=zohomail.com; s=zohoarc; b=YwpvSo6UhPSaMsvemgD6kZI/1TzE/bArUgbMutyf8vBL/lHHi5lVcvbAKsMm1WwwXQC9p27opmHF/+fxJRXtxeSqseMCsara3E6yOOjBKpSdoqc9ePC8/t8gkaSSZOvW5wLrdHjkA14WdfvVI9cabFcRV77KTg+D1ImbcyWTtZc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1764244255; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:MIME-Version:Message-ID:Subject:Subject:To:To:Message-Id:Reply-To; bh=x85sTg3IrTtkcAGJIzvzOSxqMIyYPsqGLG1Rv3c8LGQ=; b=Envwa080PIC98QSFvYzNdbDDYx9SnjhdcO1beiPGYrHK5+RfG9lie5XKibe9n5fY9C2Qaqt6o5XNOLikIDGrAbPQDuOOCIbAab2jxTFA7ahJB3RBmZSFHXLTz+K7N4B8aVc1AU6gAqG93/h5buzg70/OSqSr2bcC5OPcBkAFJXI= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=ashley.smith@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1764244255; s=zohomail; d=collabora.com; i=ashley.smith@collabora.com; h=From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:Message-ID:MIME-Version:Content-Transfer-Encoding:Message-Id:Reply-To; bh=x85sTg3IrTtkcAGJIzvzOSxqMIyYPsqGLG1Rv3c8LGQ=; b=Xqw9IEkB0VgSUXpVOVozc15I56WMiQtAaGpm4RONj6qqH71aMXTsT7wMgzstl0kB OunJHqMU7Z8rNihMoShlGnb9hUug7xtvqITVqsPxqij9cFTcqB18loep7hBhoYq9TsG i3UZUBuSFR91LRZROxkvwCLr8ehjPfnRz1R+DvRA= Received: by mx.zohomail.com with SMTPS id 1764244253149304.5178677468157; Thu, 27 Nov 2025 03:50:53 -0800 (PST) From: Ashley Smith To: Boris Brezillon , Steven Price , Liviu Dudau , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: kernel@collabora.com, Ashley Smith , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH v2] drm/panthor: Enable timestamp propagation Date: Thu, 27 Nov 2025 11:44:02 +0000 Message-ID: <20251127115019.2113040-1-ashley.smith@collabora.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMailClient: External Content-Type: text/plain; charset="utf-8" Set the GLB_COUNTER_EN bit to enable coherent propagation of GPU timestamp values to shader cores. This is a prerequisite for exposing device-coherent timestamp queries. Bump the version to 1.6 so userspace can detect support. v2: - GLB_COUNTER_EN is not a toggle bit move to panthor_fw_update_reqs Signed-off-by: Ashley Smith Reviewed-by: Steven Price --- drivers/gpu/drm/panthor/panthor_drv.c | 3 ++- drivers/gpu/drm/panthor/panthor_fw.c | 4 +++- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/panthor/panthor_drv.c b/drivers/gpu/drm/pantho= r/panthor_drv.c index d1d4c50da5bf..0b0ec3b978c6 100644 --- a/drivers/gpu/drm/panthor/panthor_drv.c +++ b/drivers/gpu/drm/panthor/panthor_drv.c @@ -1604,6 +1604,7 @@ static void panthor_debugfs_init(struct drm_minor *mi= nor) * - 1.3 - adds DRM_PANTHOR_GROUP_STATE_INNOCENT flag * - 1.4 - adds DRM_IOCTL_PANTHOR_BO_SET_LABEL ioctl * - 1.5 - adds DRM_PANTHOR_SET_USER_MMIO_OFFSET ioctl + * - 1.6 - enables GLB_COUNTER_EN */ static const struct drm_driver panthor_drm_driver =3D { .driver_features =3D DRIVER_RENDER | DRIVER_GEM | DRIVER_SYNCOBJ | @@ -1617,7 +1618,7 @@ static const struct drm_driver panthor_drm_driver =3D= { .name =3D "panthor", .desc =3D "Panthor DRM driver", .major =3D 1, - .minor =3D 5, + .minor =3D 6, =20 .gem_create_object =3D panthor_gem_create_object, .gem_prime_import_sg_table =3D drm_gem_shmem_prime_import_sg_table, diff --git a/drivers/gpu/drm/panthor/panthor_fw.c b/drivers/gpu/drm/panthor= /panthor_fw.c index 38d87ab92eda..a55731e95884 100644 --- a/drivers/gpu/drm/panthor/panthor_fw.c +++ b/drivers/gpu/drm/panthor/panthor_fw.c @@ -996,7 +996,9 @@ static void panthor_fw_init_global_iface(struct panthor= _device *ptdev) GLB_IDLE_EN | GLB_IDLE; =20 - panthor_fw_update_reqs(glb_iface, req, GLB_IDLE_EN, GLB_IDLE_EN); + panthor_fw_update_reqs(glb_iface, req, + GLB_IDLE_EN | GLB_COUNTER_EN, + GLB_IDLE_EN | GLB_COUNTER_EN); panthor_fw_toggle_reqs(glb_iface, req, ack, GLB_CFG_ALLOC_EN | GLB_CFG_POWEROFF_TIMER | base-commit: 92c49b3f4df8f9acfa95551ef38fc00c675319fd --=20 2.43.0