From: Tomas Elf Date: Mon, 21 Mar 2016 16:26:59 +0000 (+0000) Subject: drm/i915/tdr: Initialize hangcheck struct for each engine X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fc0768ceac126ea6ec2ff8bd56bbe4abe11695bc;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git drm/i915/tdr: Initialize hangcheck struct for each engine Initialize hangcheck struct during driver load. Since we do the same after recovering from a reset, this is extracted into a helper function. v2: remove redundant hangcheck init during load as this is done when engines are initialized (Chris) Cc: Mika Kuoppala Signed-off-by: Tomas Elf Signed-off-by: Arun Siluvery Reviewed-by: Chris Wilson Signed-off-by: Mika Kuoppala Link: http://patchwork.freedesktop.org/patch/msgid/1458577619-12006-1-git-send-email-arun.siluvery@linux.intel.com --- diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 050d860115f1..56eb5f0d9f38 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2740,6 +2740,7 @@ extern long i915_compat_ioctl(struct file *filp, unsigned int cmd, extern int intel_gpu_reset(struct drm_device *dev, u32 engine_mask); extern bool intel_has_gpu_reset(struct drm_device *dev); extern int i915_reset(struct drm_device *dev); +extern void intel_engine_init_hangcheck(struct intel_engine_cs *engine); extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv); extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv); extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv); diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 3a23b9549f7b..40ef4eaf580f 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -1606,7 +1606,7 @@ static int gen8_init_common_ring(struct intel_engine_cs *engine) engine->next_context_status_buffer = next_context_status_buffer_hw; DRM_DEBUG_DRIVER("Execlists enabled for %s\n", engine->name); - memset(&engine->hangcheck, 0, sizeof(engine->hangcheck)); + intel_engine_init_hangcheck(engine); return 0; } diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index df0ef5bba8e5..ce59850f7e73 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -555,6 +555,11 @@ static bool stop_ring(struct intel_engine_cs *engine) return (I915_READ_HEAD(engine) & HEAD_ADDR) == 0; } +void intel_engine_init_hangcheck(struct intel_engine_cs *engine) +{ + memset(&engine->hangcheck, 0, sizeof(engine->hangcheck)); +} + static int init_ring_common(struct intel_engine_cs *engine) { struct drm_device *dev = engine->dev; @@ -634,7 +639,7 @@ static int init_ring_common(struct intel_engine_cs *engine) ringbuf->tail = I915_READ_TAIL(engine) & TAIL_ADDR; intel_ring_update_space(ringbuf); - memset(&engine->hangcheck, 0, sizeof(engine->hangcheck)); + intel_engine_init_hangcheck(engine); out: intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);