From patchwork Fri Apr 14 08:10:48 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yannick FERTRE X-Patchwork-Id: 9680765 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6950360132 for ; Fri, 14 Apr 2017 08:11:40 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 56FBD285FE for ; Fri, 14 Apr 2017 08:11:40 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4B8072863E; Fri, 14 Apr 2017 08:11:40 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 08C03285FE for ; Fri, 14 Apr 2017 08:11:40 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 689556E2F7; Fri, 14 Apr 2017 08:11:36 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com [62.209.51.94]) by gabe.freedesktop.org (Postfix) with ESMTPS id AA2B56E27F for ; Fri, 14 Apr 2017 08:11:34 +0000 (UTC) Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by m0046037.ppops.net (8.16.0.11/8.16.0.11) with SMTP id v3E88uAZ031192; Fri, 14 Apr 2017 10:11:06 +0200 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-.pphosted.com with ESMTP id 29tp64sa8g-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Fri, 14 Apr 2017 10:11:06 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 6AB604A; Fri, 14 Apr 2017 08:11:05 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas22.st.com [10.75.90.92]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 4887811F0; Fri, 14 Apr 2017 08:11:05 +0000 (GMT) Received: from localhost (10.201.23.68) by Webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.319.2; Fri, 14 Apr 2017 10:11:04 +0200 From: Yannick Fertre To: Alexandre TORGUE , Thierry Reding , David Airlie , Maxime Coquelin , Russell King , Mark Rutland , Rob Herring , Arnd Bergmann , Benjamin Gaignard , Yannick Fertre Subject: [PATCH v6 2/9] drm/fb-cma-helper: Add drm_fb_cma_get_gem_addr() Date: Fri, 14 Apr 2017 10:10:48 +0200 Message-ID: <1492157455-2283-3-git-send-email-yannick.fertre@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1492157455-2283-1-git-send-email-yannick.fertre@st.com> References: <1492157455-2283-1-git-send-email-yannick.fertre@st.com> MIME-Version: 1.0 X-Originating-IP: [10.201.23.68] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-04-14_04:, , signatures=0 Cc: devicetree@vger.kernel.org, kernel@stlinux.com, Philippe Cornu , Fabien Dessenne , dri-devel@lists.freedesktop.org, Mickael Reulier , Vincent Abriou , Gabriel FERNANDEZ , linux-arm-kernel@lists.infradead.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 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" X-Virus-Scanned: ClamAV using ClamSMTP Add function drm_fb_cma_get_gem_addr() which return the physical address of framebuffer (1st pixel). This function will usually be called by plane callback (atomic_update). Signed-off-by: Yannick Fertre --- drivers/gpu/drm/drm_fb_cma_helper.c | 27 +++++++++++++++++++++++++++ include/drm/drm_fb_cma_helper.h | 4 ++++ 2 files changed, 31 insertions(+) diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c b/drivers/gpu/drm/drm_fb_cma_helper.c index 50abd1f..d2b77b0 100644 --- a/drivers/gpu/drm/drm_fb_cma_helper.c +++ b/drivers/gpu/drm/drm_fb_cma_helper.c @@ -260,6 +260,33 @@ struct drm_gem_cma_object *drm_fb_cma_get_gem_obj(struct drm_framebuffer *fb, EXPORT_SYMBOL_GPL(drm_fb_cma_get_gem_obj); /** + * drm_fb_cma_get_gem_addr() - Get physical address for framebuffer + * @fb: The framebuffer + * @state: Which state of drm plane + * @plane: Which plane + * Return the CMA GEM address for given framebuffer. + * + * This function will usually be called from the PLANE callback functions. + */ +dma_addr_t drm_fb_cma_get_gem_addr(struct drm_framebuffer *fb, + struct drm_plane_state *state, + unsigned int plane) +{ + struct drm_fb_cma *fb_cma = to_fb_cma(fb); + dma_addr_t paddr; + + if (plane >= 4) + return 0; + + paddr = fb_cma->obj[plane]->paddr + fb->offsets[plane]; + paddr += fb->format->cpp[plane] * (state->src_x >> 16); + paddr += fb->pitches[plane] * (state->src_y >> 16); + + return paddr; +} +EXPORT_SYMBOL_GPL(drm_fb_cma_get_gem_addr); + +/** * drm_fb_cma_prepare_fb() - Prepare CMA framebuffer * @plane: Which plane * @state: Plane state attach fence to diff --git a/include/drm/drm_fb_cma_helper.h b/include/drm/drm_fb_cma_helper.h index a5ecc0a..199a63f 100644 --- a/include/drm/drm_fb_cma_helper.h +++ b/include/drm/drm_fb_cma_helper.h @@ -41,6 +41,10 @@ struct drm_framebuffer *drm_fb_cma_create(struct drm_device *dev, struct drm_gem_cma_object *drm_fb_cma_get_gem_obj(struct drm_framebuffer *fb, unsigned int plane); +dma_addr_t drm_fb_cma_get_gem_addr(struct drm_framebuffer *fb, + struct drm_plane_state *state, + unsigned int plane); + int drm_fb_cma_prepare_fb(struct drm_plane *plane, struct drm_plane_state *state);