From: Mika Kuoppala Date: Tue, 15 Dec 2015 14:25:07 +0000 (+0200) Subject: drm/i915: Introduce intel_uncore_unclaimed_mmio X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=fc97618bf373b496858eca463e5154085835ae41;p=linux-beck.git drm/i915: Introduce intel_uncore_unclaimed_mmio Currently interrupt code is the only place checking for the unclaimed register access prior to actual register macros using the same functionality. Rename the function and make it return bool so that the possible error message context is clear in the caller side. The motivation is to allow usage of unclaimed detection on arbitrary places. v2: rebase, s/access/mmio, s/dev/dev_priv Reviewed-by: Chris Wilson Signed-off-by: Mika Kuoppala Link: http://patchwork.freedesktop.org/patch/msgid/1450189512-30360-2-git-send-email-mika.kuoppala@intel.com --- diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 8cf655c6fc03..aa32e8872a95 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2717,7 +2717,7 @@ extern void intel_uncore_sanitize(struct drm_device *dev); extern void intel_uncore_early_sanitize(struct drm_device *dev, bool restore_forcewake); extern void intel_uncore_init(struct drm_device *dev); -extern void intel_uncore_check_errors(struct drm_device *dev); +extern bool intel_uncore_unclaimed_mmio(struct drm_i915_private *dev_priv); extern void intel_uncore_fini(struct drm_device *dev); extern void intel_uncore_forcewake_reset(struct drm_device *dev, bool restore); const char *intel_uncore_forcewake_domain_to_str(const enum forcewake_domain_id id); diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index b775decf9d27..e7e44a972905 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -2190,7 +2190,8 @@ static irqreturn_t ironlake_irq_handler(int irq, void *arg) /* We get interrupts on unclaimed registers, so check for this before we * do any I915_{READ,WRITE}. */ - intel_uncore_check_errors(dev); + if (intel_uncore_unclaimed_mmio(dev_priv)) + DRM_ERROR("Unclaimed register before interrupt\n"); /* disable master interrupt before clearing iir */ de_ier = I915_READ(DEIER); diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 358cb9cb219e..7ab5916f90dd 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -1596,8 +1596,7 @@ bool intel_has_gpu_reset(struct drm_device *dev) return intel_get_gpu_reset(dev) != NULL; } -void intel_uncore_check_errors(struct drm_device *dev) +bool intel_uncore_unclaimed_mmio(struct drm_i915_private *dev_priv) { - if (check_for_unclaimed_mmio(to_i915(dev))) - DRM_ERROR("Unclaimed register before interrupt\n"); + return check_for_unclaimed_mmio(dev_priv); }