From patchwork Fri Sep 16 15:12:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lucas Stach X-Patchwork-Id: 12978649 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 BA9F2ECAAD8 for ; Fri, 16 Sep 2022 15:12:27 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EFCE410ED7A; Fri, 16 Sep 2022 15:12:19 +0000 (UTC) Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by gabe.freedesktop.org (Postfix) with ESMTPS id 152A910ED61 for ; Fri, 16 Sep 2022 15:12:08 +0000 (UTC) Received: from dude02.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::28]) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1oZD0g-0003aI-6I; Fri, 16 Sep 2022 17:12:06 +0200 From: Lucas Stach To: etnaviv@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH v2 2/3] drm/etnaviv: allocate unique ID per drm_file Date: Fri, 16 Sep 2022 17:12:04 +0200 Message-Id: <20220916151205.165687-2-l.stach@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220916151205.165687-1-l.stach@pengutronix.de> References: <20220916151205.165687-1-l.stach@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::28 X-SA-Exim-Mail-From: l.stach@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: dri-devel@lists.freedesktop.org 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: , Cc: patchwork-lst@pengutronix.de, kernel@pengutronix.de, Russell King Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Allows to easily track if several fd are pointing to the same execution context due to being dup'ed. Signed-off-by: Lucas Stach Reviewed-by: Philipp Zabel --- drivers/gpu/drm/etnaviv/etnaviv_drv.c | 3 +++ drivers/gpu/drm/etnaviv/etnaviv_drv.h | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c index 1d2b4fb4bcf8..b69edb40ae2a 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c @@ -49,6 +49,7 @@ static void load_gpu(struct drm_device *dev) static int etnaviv_open(struct drm_device *dev, struct drm_file *file) { struct etnaviv_drm_private *priv = dev->dev_private; + static atomic_t ident = ATOMIC_INIT(0); struct etnaviv_file_private *ctx; int ret, i; @@ -56,6 +57,8 @@ static int etnaviv_open(struct drm_device *dev, struct drm_file *file) if (!ctx) return -ENOMEM; + ctx->id = atomic_inc_return(&ident); + ctx->mmu = etnaviv_iommu_context_init(priv->mmu_global, priv->cmdbuf_suballoc); if (!ctx->mmu) { diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.h b/drivers/gpu/drm/etnaviv/etnaviv_drv.h index f32f4771dada..851b4b4ef146 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.h @@ -27,6 +27,7 @@ struct etnaviv_iommu_global; #define ETNAVIV_SOFTPIN_START_ADDRESS SZ_4M /* must be >= SUBALLOC_SIZE */ struct etnaviv_file_private { + int id; struct etnaviv_iommu_context *mmu; struct drm_sched_entity sched_entity[ETNA_MAX_PIPES]; };