From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paulo Zanoni Subject: [PATCH 10/20] drm/i915: fix GEN7_ERR_INT init/reset code Date: Fri, 7 Mar 2014 20:10:26 -0300 Message-ID: <1394233836-3827-11-git-send-email-przanoni@gmail.com> References: <1394233836-3827-1-git-send-email-przanoni@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-yh0-f41.google.com (mail-yh0-f41.google.com [209.85.213.41]) by gabe.freedesktop.org (Postfix) with ESMTP id 10316FAD7A for ; Fri, 7 Mar 2014 15:11:14 -0800 (PST) Received: by mail-yh0-f41.google.com with SMTP id v1so384538yhn.14 for ; Fri, 07 Mar 2014 15:11:14 -0800 (PST) In-Reply-To: <1394233836-3827-1-git-send-email-przanoni@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org To: intel-gfx@lists.freedesktop.org Cc: Paulo Zanoni List-Id: intel-gfx@lists.freedesktop.org From: Paulo Zanoni Same as SERR_INT and the other IIR registers: reset on preinstall/uninstall and WARN for non-zero values at postinstall. This one also doesn't need double-clear. Signed-off-by: Paulo Zanoni --- drivers/gpu/drm/i915/i915_irq.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index d295624..02eb493 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -2845,6 +2845,9 @@ static void ironlake_irq_preinstall(struct drm_device *dev) GEN5_IRQ_RESET(DE); + if (IS_GEN7(dev)) + I915_WRITE(GEN7_ERR_INT, 0xffffffff); + gen5_gt_irq_preinstall(dev); ibx_irq_preinstall(dev); @@ -3011,7 +3014,7 @@ static int ironlake_irq_postinstall(struct drm_device *dev) extra_mask = (DE_PIPEC_VBLANK_IVB | DE_PIPEB_VBLANK_IVB | DE_PIPEA_VBLANK_IVB); - I915_WRITE(GEN7_ERR_INT, I915_READ(GEN7_ERR_INT)); + GEN5_ASSERT_IIR_IS_ZERO(GEN7_ERR_INT); } else { display_mask = (DE_MASTER_IRQ_CONTROL | DE_GSE | DE_PCH_EVENT | DE_PLANEA_FLIP_DONE | DE_PLANEB_FLIP_DONE | @@ -3295,7 +3298,7 @@ static void ironlake_irq_uninstall(struct drm_device *dev) GEN5_IRQ_RESET(DE); if (IS_GEN7(dev)) - I915_WRITE(GEN7_ERR_INT, I915_READ(GEN7_ERR_INT)); + I915_WRITE(GEN7_ERR_INT, 0xffffffff); GEN5_IRQ_RESET(GT); if (INTEL_INFO(dev)->gen >= 6) -- 1.8.5.3