From patchwork Tue Sep 15 12:41:44 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephane Viau X-Patchwork-Id: 7184111 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 91228BEEC1 for ; Tue, 15 Sep 2015 12:43:39 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A867620688 for ; Tue, 15 Sep 2015 12:43:38 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 8E6AE2068E for ; Tue, 15 Sep 2015 12:43:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D4D046E8EF; Tue, 15 Sep 2015 05:43:36 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from smtp.codeaurora.org (smtp.codeaurora.org [198.145.29.96]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8935E6E8EF for ; Tue, 15 Sep 2015 05:43:35 -0700 (PDT) Received: from smtp.codeaurora.org (localhost [127.0.0.1]) by smtp.codeaurora.org (Postfix) with ESMTP id 5B3BA140121; Tue, 15 Sep 2015 12:43:35 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 486) id 463C3140129; Tue, 15 Sep 2015 12:43:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from yyzubuntu31.qualcomm.com (rrcs-67-52-130-30.west.biz.rr.com [67.52.130.30]) (using TLSv1.1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: sviau@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id C9D2B140121; Tue, 15 Sep 2015 12:43:33 +0000 (UTC) From: Stephane Viau To: dri-devel@lists.freedesktop.org Subject: [PATCH 01/10] drm/msm/mdp5: remove the cfg pointer from SMP struct Date: Tue, 15 Sep 2015 08:41:44 -0400 Message-Id: <1442320913-3248-2-git-send-email-sviau@codeaurora.org> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1442320913-3248-1-git-send-email-sviau@codeaurora.org> References: <1442320913-3248-1-git-send-email-sviau@codeaurora.org> X-Virus-Scanned: ClamAV using ClamSMTP Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.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: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP We want to make sure we control all the information being passed down to SMP block. Having access to the cfg pointer here may create bad things in the future. Signed-off-by: Stephane Viau --- drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.h | 2 +- drivers/gpu/drm/msm/mdp/mdp5/mdp5_smp.c | 8 ++++---- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.h b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.h index efb918d..a6facaf 100644 --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.h +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.h @@ -61,7 +61,7 @@ struct mdp5_smp_block { int mmb_size; /* MMB: size in bytes */ uint32_t clients[MAX_CLIENTS]; /* SMP port allocation /pipe */ mdp5_smp_state_t reserved_state;/* SMP MMBs statically allocated */ - int reserved[MAX_CLIENTS]; /* # of MMBs allocated per client */ + uint8_t reserved[MAX_CLIENTS]; /* # of MMBs allocated per client */ }; #define MDP5_INTF_NUM_MAX 5 diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_smp.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_smp.c index 563cca9..6f425c2 100644 --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_smp.c +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_smp.c @@ -90,7 +90,7 @@ struct mdp5_smp { struct drm_device *dev; - const struct mdp5_smp_block *cfg; + uint8_t reserved[MAX_CLIENTS]; /* fixed MMBs allocation per client */ int blk_cnt; int blk_size; @@ -141,10 +141,10 @@ static int smp_request_block(struct mdp5_smp *smp, struct mdp5_kms *mdp5_kms = get_kms(smp); struct mdp5_client_smp_state *ps = &smp->client_state[cid]; int i, ret, avail, cur_nblks, cnt = smp->blk_cnt; - int reserved; + uint8_t reserved; unsigned long flags; - reserved = smp->cfg->reserved[cid]; + reserved = smp->reserved[cid]; spin_lock_irqsave(&smp->state_lock, flags); @@ -405,12 +405,12 @@ struct mdp5_smp *mdp5_smp_init(struct drm_device *dev, const struct mdp5_smp_blo } smp->dev = dev; - smp->cfg = cfg; smp->blk_cnt = cfg->mmb_count; smp->blk_size = cfg->mmb_size; /* statically tied MMBs cannot be re-allocated: */ bitmap_copy(smp->state, cfg->reserved_state, smp->blk_cnt); + memcpy(smp->reserved, cfg->reserved, sizeof(smp->reserved)); spin_lock_init(&smp->state_lock); return smp;