From patchwork Thu Dec 21 06:14:24 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Archit Taneja X-Patchwork-Id: 10126953 X-Patchwork-Delegate: agross@codeaurora.org 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 3C63C6056F for ; Thu, 21 Dec 2017 06:14:41 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2FE8129A7F for ; Thu, 21 Dec 2017 06:14:41 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 245EA29A97; Thu, 21 Dec 2017 06:14:41 +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=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7643A29A81 for ; Thu, 21 Dec 2017 06:14:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750977AbdLUGOj (ORCPT ); Thu, 21 Dec 2017 01:14:39 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:53410 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751318AbdLUGOj (ORCPT ); Thu, 21 Dec 2017 01:14:39 -0500 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id AD34E60B0E; Thu, 21 Dec 2017 06:14:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1513836878; bh=hCRk9Tdfi0iUCiOb3ojheKgg/S17FT2qvNme7hi+wiA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RqlQBz2fLby6Sb07d7ap+Z7szeV1T0pyCui1aDByeFzQNF7nFTPd80VAwIIdXwgEW wivb3qwiX5/Spi9DnlxVDPwTkr0An+OeexmSp4Jp0G9ubaSbu6te/bQmm5IviXWek/ p4WXam46dm4znEmLDhdbIhiMBaDxzg/9hRQXeFcM= Received: from localhost (blr-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.18.19]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: architt@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 27F536070A; Thu, 21 Dec 2017 06:14:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1513836877; bh=hCRk9Tdfi0iUCiOb3ojheKgg/S17FT2qvNme7hi+wiA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=beRfMuOwPvf0sJgyvITq1WupgIBKhqNB2COuUcgahhP/7V3kejYGX7t9MZln6/hvW /K1sBADc3me4oIRdfb9OmhJbGLlpppYoPd5EJQxinswsmipN6/dNyL+T3nYzXK5ezJ 9wC6OA7dvlUNq4ovLAgOauAUTjOUpI4CWFnrG1Qo= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 27F536070A Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=architt@codeaurora.org From: Archit Taneja To: robdclark@gmail.com Cc: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, daniel@ffwll.ch, dhinakaran.pandiyan@intel.com, Archit Taneja Subject: [RFC 2/3] drm/msm/mdp5: Use the new private_obj state Date: Thu, 21 Dec 2017 11:44:24 +0530 Message-Id: <20171221061425.5511-3-architt@codeaurora.org> X-Mailer: git-send-email 2.15.0 In-Reply-To: <20171221061425.5511-1-architt@codeaurora.org> References: <20171221061425.5511-1-architt@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This replaces the usage of the subclassed atomic state (mdp5_state) with a private_obj state embedded within drm_atomic_state. The latter method is the preferred approach, since it's simpler to implement and less prone to errors. The new API replaces the older and equivalent mdp5_state usage in the following pattern: - References to "mdp5_kms->state" (i.e, the old/existing state) is replaced with mdp5_get_existing_global_state(). In the atomic_check path, this should be called with the glob_state_lock drm_modeset_lock alredy taken. - References to "mdp5_get_state()" are replaced with mdp5_get_global_state(). This acquires glob_state_lock and uses drm_atomic_get_private_obj_state() to create a new duplicated state. Signed-off-by: Archit Taneja --- drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c | 10 ++++++++-- drivers/gpu/drm/msm/mdp/mdp5/mdp5_mixer.c | 12 ++++++------ drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.c | 20 +++++++++++--------- drivers/gpu/drm/msm/mdp/mdp5/mdp5_smp.c | 17 ++++++++++++----- 4 files changed, 37 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c index dfc4d81124d5..dabb58ad068c 100644 --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c @@ -190,20 +190,26 @@ static void mdp5_prepare_commit(struct msm_kms *kms, struct drm_atomic_state *st { struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms)); struct device *dev = &mdp5_kms->pdev->dev; + struct mdp5_global_state *global_state; + + global_state = mdp5_get_existing_global_state(mdp5_kms); pm_runtime_get_sync(dev); if (mdp5_kms->smp) - mdp5_smp_prepare_commit(mdp5_kms->smp, &mdp5_kms->state->smp); + mdp5_smp_prepare_commit(mdp5_kms->smp, &global_state->smp); } static void mdp5_complete_commit(struct msm_kms *kms, struct drm_atomic_state *state) { struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms)); struct device *dev = &mdp5_kms->pdev->dev; + struct mdp5_global_state *global_state; + + global_state = mdp5_get_existing_global_state(mdp5_kms); if (mdp5_kms->smp) - mdp5_smp_complete_commit(mdp5_kms->smp, &mdp5_kms->state->smp); + mdp5_smp_complete_commit(mdp5_kms->smp, &global_state->smp); pm_runtime_put_autosuspend(dev); } diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_mixer.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_mixer.c index 8a00991f03c7..113e6b569562 100644 --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_mixer.c +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_mixer.c @@ -52,14 +52,14 @@ int mdp5_mixer_assign(struct drm_atomic_state *s, struct drm_crtc *crtc, { struct msm_drm_private *priv = s->dev->dev_private; struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(priv->kms)); - struct mdp5_state *state = mdp5_get_state(s); + struct mdp5_global_state *global_state = mdp5_get_global_state(s); struct mdp5_hw_mixer_state *new_state; int i; - if (IS_ERR(state)) - return PTR_ERR(state); + if (IS_ERR(global_state)) + return PTR_ERR(global_state); - new_state = &state->hwmixer; + new_state = &global_state->hwmixer; for (i = 0; i < mdp5_kms->num_hwmixers; i++) { struct mdp5_hw_mixer *cur = mdp5_kms->hwmixers[i]; @@ -129,8 +129,8 @@ int mdp5_mixer_assign(struct drm_atomic_state *s, struct drm_crtc *crtc, void mdp5_mixer_release(struct drm_atomic_state *s, struct mdp5_hw_mixer *mixer) { - struct mdp5_state *state = mdp5_get_state(s); - struct mdp5_hw_mixer_state *new_state = &state->hwmixer; + struct mdp5_global_state *global_state = mdp5_get_global_state(s); + struct mdp5_hw_mixer_state *new_state = &global_state->hwmixer; if (!mixer) return; diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.c index 2bfac3712685..88a8a86c95c7 100644 --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.c +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.c @@ -22,18 +22,20 @@ struct mdp5_hw_pipe *mdp5_pipe_assign(struct drm_atomic_state *s, { struct msm_drm_private *priv = s->dev->dev_private; struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(priv->kms)); - struct mdp5_state *state; + struct mdp5_global_state *new_global_state, *old_global_state; struct mdp5_hw_pipe_state *old_state, *new_state; struct mdp5_hw_pipe *hwpipe = NULL; int i; - state = mdp5_get_state(s); - if (IS_ERR(state)) - return ERR_CAST(state); + new_global_state = mdp5_get_global_state(s); + if (IS_ERR(new_global_state)) + return ERR_CAST(new_global_state); - /* grab old_state after mdp5_get_state(), since now we hold lock: */ - old_state = &mdp5_kms->state->hwpipe; - new_state = &state->hwpipe; + /* grab old_state after mdp5_get_global_state(), since now we hold lock: */ + old_global_state = mdp5_get_existing_global_state(mdp5_kms); + + old_state = &old_global_state->hwpipe; + new_state = &new_global_state->hwpipe; for (i = 0; i < mdp5_kms->num_hwpipes; i++) { struct mdp5_hw_pipe *cur = mdp5_kms->hwpipes[i]; @@ -76,7 +78,7 @@ struct mdp5_hw_pipe *mdp5_pipe_assign(struct drm_atomic_state *s, int ret; DBG("%s: alloc SMP blocks", hwpipe->name); - ret = mdp5_smp_assign(mdp5_kms->smp, &state->smp, + ret = mdp5_smp_assign(mdp5_kms->smp, &new_global_state->smp, hwpipe->pipe, blkcfg); if (ret) return ERR_PTR(-ENOMEM); @@ -95,7 +97,7 @@ void mdp5_pipe_release(struct drm_atomic_state *s, struct mdp5_hw_pipe *hwpipe) { struct msm_drm_private *priv = s->dev->dev_private; struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(priv->kms)); - struct mdp5_state *state = mdp5_get_state(s); + struct mdp5_global_state *state = mdp5_get_global_state(s); struct mdp5_hw_pipe_state *new_state = &state->hwpipe; if (!hwpipe) diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_smp.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_smp.c index ae4983d9d0a5..96c2b828dba4 100644 --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_smp.c +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_smp.c @@ -340,17 +340,20 @@ void mdp5_smp_dump(struct mdp5_smp *smp, struct drm_printer *p) struct mdp5_kms *mdp5_kms = get_kms(smp); struct mdp5_hw_pipe_state *hwpstate; struct mdp5_smp_state *state; + struct mdp5_global_state *global_state; int total = 0, i, j; drm_printf(p, "name\tinuse\tplane\n"); drm_printf(p, "----\t-----\t-----\n"); if (drm_can_sleep()) - drm_modeset_lock(&mdp5_kms->state_lock, NULL); + drm_modeset_lock(&mdp5_kms->glob_state_lock, NULL); + + global_state = mdp5_get_existing_global_state(mdp5_kms); /* grab these *after* we hold the state_lock */ - hwpstate = &mdp5_kms->state->hwpipe; - state = &mdp5_kms->state->smp; + hwpstate = &global_state->hwpipe; + state = &global_state->smp; for (i = 0; i < mdp5_kms->num_hwpipes; i++) { struct mdp5_hw_pipe *hwpipe = mdp5_kms->hwpipes[i]; @@ -374,7 +377,7 @@ void mdp5_smp_dump(struct mdp5_smp *smp, struct drm_printer *p) bitmap_weight(state->state, smp->blk_cnt)); if (drm_can_sleep()) - drm_modeset_unlock(&mdp5_kms->state_lock); + drm_modeset_unlock(&mdp5_kms->glob_state_lock); } void mdp5_smp_destroy(struct mdp5_smp *smp) @@ -384,7 +387,8 @@ void mdp5_smp_destroy(struct mdp5_smp *smp) struct mdp5_smp *mdp5_smp_init(struct mdp5_kms *mdp5_kms, const struct mdp5_smp_block *cfg) { - struct mdp5_smp_state *state = &mdp5_kms->state->smp; + struct mdp5_smp_state *state; + struct mdp5_global_state *global_state; struct mdp5_smp *smp = NULL; int ret; @@ -398,6 +402,9 @@ struct mdp5_smp *mdp5_smp_init(struct mdp5_kms *mdp5_kms, const struct mdp5_smp_ smp->blk_cnt = cfg->mmb_count; smp->blk_size = cfg->mmb_size; + global_state = mdp5_get_existing_global_state(mdp5_kms); + state = &global_state->smp; + /* statically tied MMBs cannot be re-allocated: */ bitmap_copy(state->state, cfg->reserved_state, smp->blk_cnt); memcpy(smp->reserved, cfg->reserved, sizeof(smp->reserved));