From 843db716a9c3d3089a3a1f1b9b7af9a33943ab85 Mon Sep 17 00:00:00 2001 From: Rodrigo Vivi Date: Fri, 1 Aug 2014 09:12:27 -0700 Subject: [PATCH] drm/i915: Collect gtier properly on HSW. 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. v3: moving VLV check to the right place. Cc: Paulo Zanoni Signed-off-by: Rodrigo Vivi Reviewed-by: Paulo Zanoni Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_drv.h | 1 + drivers/gpu/drm/i915/i915_gpu_error.c | 21 +++++++++++---------- 2 files changed, 12 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index ef38c3b..ccb97f1 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -314,6 +314,7 @@ 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 0ea6a6b..0c945e9 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); @@ -1103,7 +1105,8 @@ 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); } @@ -1136,16 +1139,14 @@ 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 if (!IS_VALLEYVIEW(dev)) { + error->ier = I915_READ(IER); } - - /* 4: Everything else */ error->eir = I915_READ(EIR); error->pgtbl_er = I915_READ(PGTBL_ER); -- 2.7.4