From 1813ae17fdf03c69313a9742b9be41dd7aa6ebb3 Mon Sep 17 00:00:00 2001 From: Sujaritha Sundaresan Date: Tue, 19 Feb 2019 17:39:27 -0800 Subject: drm/i915/guc: Calling guc_disable_communication in all suspend paths This aim of this patch is to call guc_disable_communication in all suspend paths. The reason to introduce this is to resolve a bug that occurred due to suspend late not being called in the hibernate devices path. Cc: Daniele Ceraolo Spurio Cc: Michal Wajdeczko Signed-off-by: Sujaritha Sundaresan Reviewed-by: Daniele Ceraolo Spurio Signed-off-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20190220013927.9488-3-sujaritha.sundaresan@intel.com --- drivers/gpu/drm/i915/intel_uc.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) (limited to 'drivers/gpu/drm/i915/intel_uc.c') diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c index e711eb3268bc..2d360d53757f 100644 --- a/drivers/gpu/drm/i915/intel_uc.c +++ b/drivers/gpu/drm/i915/intel_uc.c @@ -332,8 +332,6 @@ void intel_uc_sanitize(struct drm_i915_private *i915) GEM_BUG_ON(!HAS_GUC(i915)); - guc_disable_communication(guc); - intel_huc_sanitize(huc); intel_guc_sanitize(guc); @@ -451,6 +449,23 @@ void intel_uc_fini_hw(struct drm_i915_private *i915) guc_disable_communication(guc); } +/** + * intel_uc_reset_prepare - Prepare for reset + * @i915: device private + * + * Preparing for full gpu reset. + */ +void intel_uc_reset_prepare(struct drm_i915_private *i915) +{ + struct intel_guc *guc = &i915->guc; + + if (!USES_GUC(i915)) + return; + + guc_disable_communication(guc); + intel_uc_sanitize(i915); +} + int intel_uc_suspend(struct drm_i915_private *i915) { struct intel_guc *guc = &i915->guc; @@ -468,7 +483,7 @@ int intel_uc_suspend(struct drm_i915_private *i915) return err; } - gen9_disable_guc_interrupts(i915); + guc_disable_communication(guc); return 0; } @@ -484,7 +499,7 @@ int intel_uc_resume(struct drm_i915_private *i915) if (guc->fw.load_status != INTEL_UC_FIRMWARE_SUCCESS) return 0; - gen9_enable_guc_interrupts(i915); + guc_enable_communication(guc); err = intel_guc_resume(guc); if (err) { -- cgit