From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rodrigo Vivi Subject: [PATCH 1/2] drm/i915: Collect gtier properly on HSW. Date: Fri, 1 Aug 2014 02:13:37 -0700 Message-ID: <1406884417-9905-1-git-send-email-rodrigo.vivi@intel.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id BA4D16E28F for ; Fri, 1 Aug 2014 09:12:33 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: intel-gfx@lists.freedesktop.org Cc: Paulo Zanoni , Rodrigo Vivi List-Id: intel-gfx@lists.freedesktop.org GTIER and DEIER doesn't have same interface on HSW so this "or" operation makes the information provided useless. v2: since we have gtier variable already let's split for everybody and avoid the strange | op. Also avoid overriding the value that was set for vlv. In this case I believe that we should reorganize the whole function, but I'll respect the comment that ask to not touch the order and let this organization work to be done later. Cc: Paulo Zanoni Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/i915_drv.h | 1 + drivers/gpu/drm/i915/i915_gpu_error.c | 24 ++++++++++++++---------- 2 files changed, 15 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index d604f4f..60227b2 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -317,6 +317,7 @@ struct drm_i915_error_state { u32 eir; u32 pgtbl_er; u32 ier; + u32 gtier; u32 ccid; u32 derrmr; u32 forcewake; diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c index 0b3f694..76c67dd 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -359,6 +359,8 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m, err_printf(m, "PCI ID: 0x%04x\n", dev->pdev->device); err_printf(m, "EIR: 0x%08x\n", error->eir); err_printf(m, "IER: 0x%08x\n", error->ier); + if (HAS_PCH_SPLIT(dev) || IS_VALLEYVIEW(dev)) + err_printf(m, "GTIER: 0x%08x\n", error->gtier); err_printf(m, "PGTBL_ER: 0x%08x\n", error->pgtbl_er); err_printf(m, "FORCEWAKE: 0x%08x\n", error->forcewake); err_printf(m, "DERRMR: 0x%08x\n", error->derrmr); @@ -1102,7 +1104,8 @@ static void i915_capture_reg_state(struct drm_i915_private *dev_priv, /* 1: Registers specific to a single generation */ if (IS_VALLEYVIEW(dev)) { - error->ier = I915_READ(GTIER) | I915_READ(VLV_IER); + error->gtier = I915_READ(GTIER); + error->ier = I915_READ(VLV_IER); error->forcewake = I915_READ(FORCEWAKE_VLV); } @@ -1135,17 +1138,18 @@ static void i915_capture_reg_state(struct drm_i915_private *dev_priv, if (HAS_HW_CONTEXTS(dev)) error->ccid = I915_READ(CCID); - if (HAS_PCH_SPLIT(dev)) - error->ier = I915_READ(DEIER) | I915_READ(GTIER); - else { - if (IS_GEN2(dev)) - error->ier = I915_READ16(IER); - else - error->ier = I915_READ(IER); + if (HAS_PCH_SPLIT(dev)) { + error->ier = I915_READ(DEIER); + error->gtier = I915_READ(GTIER); + } else if (IS_GEN2(dev)) { + error->ier = I915_READ16(IER); + } else { + error->ier = I915_READ(IER); } - /* 4: Everything else */ - error->eir = I915_READ(EIR); + /* do not override what was set above for VLV */ + if (!IS_VALLEYVIEW(dev)) + error->eir = I915_READ(EIR); error->pgtbl_er = I915_READ(PGTBL_ER); i915_get_extra_instdone(dev, error->extra_instdone); -- 1.9.1