From patchwork Wed Jun 7 13:02:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lucas Stach X-Patchwork-Id: 13270700 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 3498FC7EE23 for ; Wed, 7 Jun 2023 13:02:43 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B648E10E4FB; Wed, 7 Jun 2023 13:02:35 +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 C54D610E4F6 for ; Wed, 7 Jun 2023 13:02:29 +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 1q6sny-0004N0-4v; Wed, 07 Jun 2023 15:02:26 +0200 From: Lucas Stach To: etnaviv@lists.freedesktop.org Subject: [PATCH 7/8] drm/etnaviv: drop GPU initialized property Date: Wed, 7 Jun 2023 15:02:22 +0200 Message-Id: <20230607130223.3533464-7-l.stach@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230607130223.3533464-1-l.stach@pengutronix.de> References: <20230607130223.3533464-1-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, dri-devel@lists.freedesktop.org, Russell King Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Now that it is only used to track the driver internal state of the MMU global and cmdbuf objects, we can get rid of this property by making the free/finit functions of those objects safe to call on an uninitialized object. Signed-off-by: Lucas Stach Reviewed-by: Christian Gmeiner --- drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c | 3 +++ drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 9 ++------- drivers/gpu/drm/etnaviv/etnaviv_gpu.h | 1 - drivers/gpu/drm/etnaviv/etnaviv_mmu.c | 3 +++ 4 files changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c index 9dc20d892c15..721d633aece9 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c @@ -121,6 +121,9 @@ void etnaviv_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf) int order = order_base_2(ALIGN(cmdbuf->size, SUBALLOC_GRANULE) / SUBALLOC_GRANULE); + if (!suballoc) + return; + mutex_lock(&suballoc->lock); bitmap_release_region(suballoc->granule_map, cmdbuf->suballoc_offset / SUBALLOC_GRANULE, diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index 96cbb290b869..e62761032afe 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -868,8 +868,6 @@ int etnaviv_gpu_init(struct etnaviv_gpu *gpu) pm_runtime_mark_last_busy(gpu->dev); pm_runtime_put_autosuspend(gpu->dev); - gpu->initialized = true; - return 0; fail: @@ -1797,11 +1795,8 @@ static void etnaviv_gpu_unbind(struct device *dev, struct device *master, if (gpu->mmu_context) etnaviv_iommu_context_put(gpu->mmu_context); - if (gpu->initialized) { - etnaviv_cmdbuf_free(&gpu->buffer); - etnaviv_iommu_global_fini(gpu); - gpu->initialized = false; - } + etnaviv_cmdbuf_free(&gpu->buffer); + etnaviv_iommu_global_fini(gpu); gpu->drm = NULL; xa_destroy(&gpu->user_fences); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h index 33ecc1bf84b1..a4a9253f0d52 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h @@ -114,7 +114,6 @@ struct etnaviv_gpu { struct mutex sched_lock; struct drm_gpu_scheduler sched; enum etnaviv_gpu_state state; - bool initialized; /* 'ring'-buffer: */ struct etnaviv_cmdbuf buffer; diff --git a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c index 67bdce5326c6..4fa72567183a 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c @@ -553,6 +553,9 @@ void etnaviv_iommu_global_fini(struct etnaviv_gpu *gpu) struct etnaviv_drm_private *priv = gpu->drm->dev_private; struct etnaviv_iommu_global *global = priv->mmu_global; + if (!global) + return; + if (--global->use > 0) return;