From patchwork Fri Feb 26 08:40:22 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xinliang Liu X-Patchwork-Id: 8432941 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id A150B9F52D for ; Fri, 26 Feb 2016 08:45:54 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A32FA202E9 for ; Fri, 26 Feb 2016 08:45:53 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AA43820115 for ; Fri, 26 Feb 2016 08:45:52 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1aZE0N-0002yC-AA; Fri, 26 Feb 2016 08:44:07 +0000 Received: from mail-pa0-x229.google.com ([2607:f8b0:400e:c03::229]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1aZDzI-0002Ax-AO for linux-arm-kernel@lists.infradead.org; Fri, 26 Feb 2016 08:43:01 +0000 Received: by mail-pa0-x229.google.com with SMTP id fl4so47726436pad.0 for ; Fri, 26 Feb 2016 00:42:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=zKyidoXnzQS4Mrhcq8Mb/nSI0bnHbeJI9vX+J6W+jXg=; b=YecFf0jR20/HRJDvFYQkZnyzuTI6T7huO6ROXkqa2ZDdPMjzWEtp2jWdBQdElsL4Ni Zl8MCPCbW5kP7Q7o5kISbUirW6+JOPFi/WXq8iK94f0dlrNygLx7xHQIzW08/45CM6sN C0xiKf8yHuzKyORKe/xtAh1/iO7t63226/ZsQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=zKyidoXnzQS4Mrhcq8Mb/nSI0bnHbeJI9vX+J6W+jXg=; b=LsUgjHGnjguzY3pdt60Znn4yHDv83UC08srRN8AoOg2u7GSczfjdPwm4+I7WQp7vJO Rbu6UMp6GuAuiDdrJW8gsljE74/XfKXf39gjLfZg/eZyGflGHcONUf8EGRCN8iCj9JUp xit+0wkIyLsDwh44SDTQr+4eZeYSXhuj4WKlljWeGhI3BrEev6HElL5iCmcD2zEyRMAb KFX8grsjMck8exCf/YsUgXk7JiTtVK/TIUJN0MsDADaDrXrobNXon/DL0nw2CFDvQ0tG CbPGlIYOmOFD1XaB/o7mX5F8h8sz+ILbmlMi/jCSKgp+pmeNQAK+u6H3tq1qL3Qnha8Z Kapw== X-Gm-Message-State: AD7BkJLmaLyTeWsRhCDYwXlUe7n7GRHCwL2OrU3HrgEBj0SSL0feTEVpTCAfXmFK2L9G1EVL X-Received: by 10.66.253.68 with SMTP id zy4mr387715pac.81.1456476159495; Fri, 26 Feb 2016 00:42:39 -0800 (PST) Received: from localhost.localdomain ([119.139.127.18]) by smtp.gmail.com with ESMTPSA id r68sm17470178pfb.51.2016.02.26.00.42.32 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 26 Feb 2016 00:42:38 -0800 (PST) From: Xinliang Liu To: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, daniel@ffwll.ch, robh@kernel.org, daniel@fooishbar.org, architt@codeaurora.org, airlied@linux.ie, corbet@lwn.net, catalin.marinas@arm.com, will.deacon@arm.com, emil.l.velikov@gmail.com, mark.rutland@arm.com Subject: [PATCH v6 05/11] drm/hisilicon: Add vblank driver for ADE Date: Fri, 26 Feb 2016 16:40:22 +0800 Message-Id: <1456476028-36880-6-git-send-email-xinliang.liu@linaro.org> X-Mailer: git-send-email 2.7.1 In-Reply-To: <1456476028-36880-1-git-send-email-xinliang.liu@linaro.org> References: <1456476028-36880-1-git-send-email-xinliang.liu@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160226_004300_592953_0BC10126 X-CRM114-Status: GOOD ( 14.47 ) X-Spam-Score: -2.0 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: andy.green@linaro.org, xuyiping@hisilicon.com, guodong.xu@linaro.org, linux-doc@vger.kernel.org, Xinliang Liu , w.f@huawei.com, zourongrong@huawei.com, linuxarm@huawei.com, xuwei5@hisilicon.com, kong.kongxinwei@hisilicon.com, bintian.wang@huawei.com, haojian.zhuang@linaro.org, benjamin.gaignard@linaro.org, puck.chen@hisilicon.com, lijianhua@huawei.com, liguozhu@hisilicon.com, sumit.semwal@linaro.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add vblank irq handle. v6: None. v5: None. v4: None. v3: - Remove hisi_get_crtc_from_index func. - A few cleanup. v2: - Remove abtraction layer. Signed-off-by: Xinliang Liu --- drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 62 +++++++++++++++++++++++++ drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c | 14 +++++- 2 files changed, 75 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c index aa2cf75cab39..749382952ab7 100644 --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c @@ -292,6 +292,59 @@ static void ade_set_medianoc_qos(struct ade_crtc *acrtc) SOCKET_QOS_EN, SOCKET_QOS_EN); } +static int ade_enable_vblank(struct drm_device *dev, unsigned int pipe) +{ + struct kirin_drm_private *priv = dev->dev_private; + struct ade_crtc *acrtc = to_ade_crtc(priv->crtc[pipe]); + struct ade_hw_ctx *ctx = acrtc->ctx; + void __iomem *base = ctx->base; + + if (!ctx->power_on) + (void)ade_power_up(ctx); + + ade_update_bits(base + LDI_INT_EN, FRAME_END_INT_EN_OFST, + MASK(1), 1); + + return 0; +} + +static void ade_disable_vblank(struct drm_device *dev, unsigned int pipe) +{ + struct kirin_drm_private *priv = dev->dev_private; + struct ade_crtc *acrtc = to_ade_crtc(priv->crtc[pipe]); + struct ade_hw_ctx *ctx = acrtc->ctx; + void __iomem *base = ctx->base; + + if (!ctx->power_on) { + DRM_ERROR("power is down! vblank disable fail\n"); + return; + } + + ade_update_bits(base + LDI_INT_EN, FRAME_END_INT_EN_OFST, + MASK(1), 0); +} + +static irqreturn_t ade_irq_handler(int irq, void *data) +{ + struct ade_crtc *acrtc = data; + struct ade_hw_ctx *ctx = acrtc->ctx; + struct drm_crtc *crtc = &acrtc->base; + void __iomem *base = ctx->base; + u32 status; + + status = readl(base + LDI_MSK_INT); + DRM_DEBUG_VBL("LDI IRQ: status=0x%X\n", status); + + /* vblank irq */ + if (status & BIT(FRAME_END_INT_EN_OFST)) { + ade_update_bits(base + LDI_INT_CLR, FRAME_END_INT_EN_OFST, + MASK(1), 1); + drm_crtc_handle_vblank(crtc); + } + + return IRQ_HANDLED; +} + static void ade_display_enable(struct ade_crtc *acrtc) { struct ade_hw_ctx *ctx = acrtc->ctx; @@ -967,6 +1020,15 @@ int ade_drm_init(struct drm_device *dev) if (ret) return ret; + /* vblank irq init */ + ret = devm_request_irq(dev->dev, ctx->irq, ade_irq_handler, + DRIVER_IRQ_SHARED, dev->driver->name, acrtc); + if (ret) + return ret; + dev->driver->get_vblank_counter = drm_vblank_no_hw_counter; + dev->driver->enable_vblank = ade_enable_vblank; + dev->driver->disable_vblank = ade_disable_vblank; + return 0; } diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c index 055729c1889c..723888feb760 100644 --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c @@ -32,6 +32,7 @@ static int kirin_drm_kms_cleanup(struct drm_device *dev) { struct kirin_drm_private *priv = dev->dev_private; + drm_vblank_cleanup(dev); dc_ops->cleanup(dev); drm_mode_config_cleanup(dev); devm_kfree(dev->dev, priv); @@ -85,11 +86,22 @@ static int kirin_drm_kms_init(struct drm_device *dev) goto err_dc_cleanup; } + /* vblank init */ + ret = drm_vblank_init(dev, dev->mode_config.num_crtc); + if (ret) { + DRM_ERROR("failed to initialize vblank.\n"); + goto err_unbind_all; + } + /* with irq_enabled = true, we can use the vblank feature. */ + dev->irq_enabled = true; + /* reset all the states of crtc/plane/encoder/connector */ drm_mode_config_reset(dev); return 0; +err_unbind_all: + component_unbind_all(dev->dev, dev); err_dc_cleanup: dc_ops->cleanup(dev); err_mode_config_cleanup: @@ -123,7 +135,7 @@ static int kirin_gem_cma_dumb_create(struct drm_file *file, static struct drm_driver kirin_drm_driver = { .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | - DRIVER_ATOMIC, + DRIVER_ATOMIC | DRIVER_HAVE_IRQ, .fops = &kirin_drm_fops, .set_busid = drm_platform_set_busid,