From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 90AC2C28B28 for ; Mon, 17 Mar 2025 10:45:03 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BF0A310E273; Mon, 17 Mar 2025 10:44:59 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=collabora.com header.i=@collabora.com header.b="cPJX69XT"; dkim-atps=neutral Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7880710E332 for ; Mon, 17 Mar 2025 07:46:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; 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x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Mailman-Approved-At: Mon, 17 Mar 2025 10:44:56 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Sun, 16 Mar 2025 21:51:32 +0000 Adri=C3=A1n Larumbe wrote: > Add a new character string Panthor BO field, and a function that allows > setting it from within the driver. >=20 > Driver takes care of freeing the string when it's replaced or no longer > needed at object destruction time, but allocating it is the responsibility > of callers. >=20 > Signed-off-by: Adri=C3=A1n Larumbe > --- > drivers/gpu/drm/panthor/panthor_gem.c | 18 ++++++++++++++++++ > drivers/gpu/drm/panthor/panthor_gem.h | 12 ++++++++++++ > 2 files changed, 30 insertions(+) >=20 > diff --git a/drivers/gpu/drm/panthor/panthor_gem.c b/drivers/gpu/drm/pant= hor/panthor_gem.c > index 8244a4e6c2a2..3c58bb2965ea 100644 > --- a/drivers/gpu/drm/panthor/panthor_gem.c > +++ b/drivers/gpu/drm/panthor/panthor_gem.c > @@ -18,6 +18,9 @@ static void panthor_gem_free_object(struct drm_gem_obje= ct *obj) > struct panthor_gem_object *bo =3D to_panthor_bo(obj); > struct drm_gem_object *vm_root_gem =3D bo->exclusive_vm_root_gem; > =20 > + kfree(bo->label); > + mutex_destroy(&bo->label_lock); > + > drm_gem_free_mmap_offset(&bo->base.base); > mutex_destroy(&bo->gpuva_list_lock); > drm_gem_shmem_free(&bo->base); > @@ -196,6 +199,7 @@ struct drm_gem_object *panthor_gem_create_object(stru= ct drm_device *ddev, size_t > obj->base.map_wc =3D !ptdev->coherent; > mutex_init(&obj->gpuva_list_lock); > drm_gem_gpuva_set_lock(&obj->base.base, &obj->gpuva_list_lock); > + mutex_init(&obj->label_lock); > =20 > return &obj->base.base; > } > @@ -247,3 +251,17 @@ panthor_gem_create_with_handle(struct drm_file *file, > =20 > return ret; > } > + > +void > +panthor_gem_label_bo(struct drm_gem_object *obj, const char *label) > +{ > + struct panthor_gem_object *bo =3D to_panthor_bo(obj); > + const char *old_label; > + > + mutex_lock(&bo->label_lock); > + old_label =3D bo->label; > + bo->label =3D label; > + mutex_unlock(&bo->label_lock); > + > + kfree(old_label); > +} > diff --git a/drivers/gpu/drm/panthor/panthor_gem.h b/drivers/gpu/drm/pant= hor/panthor_gem.h > index 5749ef2ebe03..da9268d24566 100644 > --- a/drivers/gpu/drm/panthor/panthor_gem.h > +++ b/drivers/gpu/drm/panthor/panthor_gem.h > @@ -46,6 +46,15 @@ struct panthor_gem_object { > =20 > /** @flags: Combination of drm_panthor_bo_flags flags. */ > u32 flags; > + > + /** > + * @label: Pointer to NULL-terminated string, can be assigned within the > + * driver itself or through a specific IOCTL. > + */ > + const char *label; > + > + /** @label_lock: Lock that protects access to the @label field. */ > + struct mutex label_lock; Nit: can we have a label struct with the lock and string under it instead? /** @label: Fields related to GEM labeling. */ struct { /** * @label.str: Pointer to NULL-terminated string, can be assigned within = the * driver itself or through a specific IOCTL. */ const char *str; /** @label.lock: Lock that protects access to the @label field. */ struct mutex lock; } label; > }; > =20 > /** > @@ -91,6 +100,9 @@ panthor_gem_create_with_handle(struct drm_file *file, > struct panthor_vm *exclusive_vm, > u64 *size, u32 flags, uint32_t *handle); > =20 > +void > +panthor_gem_label_bo(struct drm_gem_object *obj, const char *label); > + > static inline u64 > panthor_kernel_bo_gpuva(struct panthor_kernel_bo *bo) > {