From patchwork Tue Sep 29 15:14:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 11806273 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EF64B6CB for ; Tue, 29 Sep 2020 15:15:44 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BFF1A2076A for ; Tue, 29 Sep 2020 15:15:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BFF1A2076A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.250.586 (Exim 4.92) (envelope-from ) id 1kNHL5-0006rR-A0; Tue, 29 Sep 2020 15:14:47 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 250.586; Tue, 29 Sep 2020 15:14:47 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kNHL5-0006rE-1K; Tue, 29 Sep 2020 15:14:47 +0000 Received: by outflank-mailman (input) for mailman id 250; Tue, 29 Sep 2020 15:14:46 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kNHL4-0006qi-AB for xen-devel@lists.xenproject.org; Tue, 29 Sep 2020 15:14:46 +0000 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 417d5dd7-20b0-47d2-9c18-c0f93ce9a10d; Tue, 29 Sep 2020 15:14:45 +0000 (UTC) Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 98A25B049; Tue, 29 Sep 2020 15:14:43 +0000 (UTC) Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kNHL4-0006qi-AB for xen-devel@lists.xenproject.org; Tue, 29 Sep 2020 15:14:46 +0000 X-Inumbo-ID: 417d5dd7-20b0-47d2-9c18-c0f93ce9a10d Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 417d5dd7-20b0-47d2-9c18-c0f93ce9a10d; Tue, 29 Sep 2020 15:14:45 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 98A25B049; Tue, 29 Sep 2020 15:14:43 +0000 (UTC) From: Thomas Zimmermann To: maarten.lankhorst@linux.intel.com, mripard@kernel.org, airlied@linux.ie, daniel@ffwll.ch, sam@ravnborg.org, alexander.deucher@amd.com, christian.koenig@amd.com, kraxel@redhat.com, l.stach@pengutronix.de, linux+etnaviv@armlinux.org.uk, christian.gmeiner@gmail.com, inki.dae@samsung.com, jy0922.shim@samsung.com, sw0312.kim@samsung.com, kyungmin.park@samsung.com, kgene@kernel.org, krzk@kernel.org, yuq825@gmail.com, bskeggs@redhat.com, robh@kernel.org, tomeu.vizoso@collabora.com, steven.price@arm.com, alyssa.rosenzweig@collabora.com, hjc@rock-chips.com, heiko@sntech.de, hdegoede@redhat.com, sean@poorly.run, eric@anholt.net, oleksandr_andrushchenko@epam.com, ray.huang@amd.com, sumit.semwal@linaro.org, emil.velikov@collabora.com, luben.tuikov@amd.com, apaneers@amd.com, linus.walleij@linaro.org, melissa.srw@gmail.com, chris@chris-wilson.co.uk, miaoqinglang@huawei.com Cc: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, virtualization@lists.linux-foundation.org, etnaviv@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, lima@lists.freedesktop.org, nouveau@lists.freedesktop.org, spice-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, xen-devel@lists.xenproject.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, Thomas Zimmermann Subject: [PATCH v3 1/7] drm/vram-helper: Remove invariant parameters from internal kmap function Date: Tue, 29 Sep 2020 17:14:31 +0200 Message-Id: <20200929151437.19717-2-tzimmermann@suse.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200929151437.19717-1-tzimmermann@suse.de> References: <20200929151437.19717-1-tzimmermann@suse.de> MIME-Version: 1.0 The parameters map and is_iomem are always of the same value. Removed them to prepares the function for conversion to struct dma_buf_map. Signed-off-by: Thomas Zimmermann Reviewed-by: Daniel Vetter --- drivers/gpu/drm/drm_gem_vram_helper.c | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c index 3fe4b326e18e..256b346664f2 100644 --- a/drivers/gpu/drm/drm_gem_vram_helper.c +++ b/drivers/gpu/drm/drm_gem_vram_helper.c @@ -382,16 +382,16 @@ int drm_gem_vram_unpin(struct drm_gem_vram_object *gbo) } EXPORT_SYMBOL(drm_gem_vram_unpin); -static void *drm_gem_vram_kmap_locked(struct drm_gem_vram_object *gbo, - bool map, bool *is_iomem) +static void *drm_gem_vram_kmap_locked(struct drm_gem_vram_object *gbo) { int ret; struct ttm_bo_kmap_obj *kmap = &gbo->kmap; + bool is_iomem; if (gbo->kmap_use_count > 0) goto out; - if (kmap->virtual || !map) + if (kmap->virtual) goto out; ret = ttm_bo_kmap(&gbo->bo, 0, gbo->bo.num_pages, kmap); @@ -399,15 +399,10 @@ static void *drm_gem_vram_kmap_locked(struct drm_gem_vram_object *gbo, return ERR_PTR(ret); out: - if (!kmap->virtual) { - if (is_iomem) - *is_iomem = false; + if (!kmap->virtual) return NULL; /* not mapped; don't increment ref */ - } ++gbo->kmap_use_count; - if (is_iomem) - return ttm_kmap_obj_virtual(kmap, is_iomem); - return kmap->virtual; + return ttm_kmap_obj_virtual(kmap, &is_iomem); } static void drm_gem_vram_kunmap_locked(struct drm_gem_vram_object *gbo) @@ -452,7 +447,7 @@ void *drm_gem_vram_vmap(struct drm_gem_vram_object *gbo) ret = drm_gem_vram_pin_locked(gbo, 0); if (ret) goto err_ttm_bo_unreserve; - base = drm_gem_vram_kmap_locked(gbo, true, NULL); + base = drm_gem_vram_kmap_locked(gbo); if (IS_ERR(base)) { ret = PTR_ERR(base); goto err_drm_gem_vram_unpin_locked;