From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Clark Subject: [PATCH 02/10] staging: drm/omap: add a workqueue Date: Mon, 5 Mar 2012 10:48:32 -0600 Message-ID: <1330966120-28582-3-git-send-email-rob.clark@linaro.org> References: <1330966120-28582-1-git-send-email-rob.clark@linaro.org> Return-path: Received: from mail-yw0-f46.google.com ([209.85.213.46]:59920 "EHLO mail-yw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755877Ab2CEQtF (ORCPT ); Mon, 5 Mar 2012 11:49:05 -0500 Received: by mail-yw0-f46.google.com with SMTP id m54so1741570yhm.19 for ; Mon, 05 Mar 2012 08:49:05 -0800 (PST) In-Reply-To: <1330966120-28582-1-git-send-email-rob.clark@linaro.org> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: dri-devel@lists.freedesktop.org, linux-omap@vger.kernel.org Cc: patches@linaro.org, Greg KH , Tomi Valkeinen , Andy Gross , Rob Clark From: Rob Clark Add a workqueue for omapdrm driver, which is needed for at least a couple things currently: (1) moving omap_gem_roll() to a non-atomic context, (2) synchronizing page flips w/ DSS scanout related irq's (in particular not unmapping previous buffer until DSS finishes scanout). Signed-off-by: Rob Clark --- drivers/staging/omapdrm/omap_drv.c | 8 ++++++++ drivers/staging/omapdrm/omap_drv.h | 2 ++ 2 files changed, 10 insertions(+), 0 deletions(-) diff --git a/drivers/staging/omapdrm/omap_drv.c b/drivers/staging/omapdrm/omap_drv.c index 3bbea9a..7417e1f 100644 --- a/drivers/staging/omapdrm/omap_drv.c +++ b/drivers/staging/omapdrm/omap_drv.c @@ -570,6 +570,9 @@ static int dev_load(struct drm_device *dev, unsigned long flags) dev->dev_private = priv; + priv->wq = alloc_workqueue("omapdrm", + WQ_UNBOUND | WQ_NON_REENTRANT, 1); + omap_gem_init(dev); ret = omap_modeset_init(dev); @@ -598,6 +601,8 @@ static int dev_load(struct drm_device *dev, unsigned long flags) static int dev_unload(struct drm_device *dev) { + struct omap_drm_private *priv = dev->dev_private; + DBG("unload: dev=%p", dev); drm_vblank_cleanup(dev); @@ -607,6 +612,9 @@ static int dev_unload(struct drm_device *dev) omap_modeset_free(dev); omap_gem_deinit(dev); + flush_workqueue(priv->wq); + destroy_workqueue(priv->wq); + kfree(dev->dev_private); dev->dev_private = NULL; diff --git a/drivers/staging/omapdrm/omap_drv.h b/drivers/staging/omapdrm/omap_drv.h index d924c95..a84547c 100644 --- a/drivers/staging/omapdrm/omap_drv.h +++ b/drivers/staging/omapdrm/omap_drv.h @@ -51,6 +51,8 @@ struct omap_drm_private { struct drm_fb_helper *fbdev; + struct workqueue_struct *wq; + bool has_dmm; }; -- 1.7.5.4