[Intel-gfx] [PATCH 03/11] drm/i915/tdr: Update reset_in_progress to account for engine reset

[Arun Siluvery]

Now that we track reset progress using separate set of flags, update it to
account for engine reset as well.

A bit corresponding engine->id is set if reset is in progress for that
engine. Bit0 is for full gpu reset.

Signed-off-by: Arun Siluvery <arun.siluvery at linux.intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 11436e7..125fafa 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1403,6 +1403,8 @@ struct i915_gpu_error {
 #define I915_RESET_IN_PROGRESS	0
 #define I915_WEDGED		(BITS_PER_LONG-1)
 
+	unsigned long engine_reset_count[I915_NUM_ENGINES];
+
 	/**
 	 * Waitqueue to signal when a hang is detected. Used to for waiters
 	 * to release the struct_mutex for the reset to procede.
@@ -3194,9 +3196,10 @@ i915_gem_find_active_request(struct intel_engine_cs *engine);
 void i915_gem_retire_requests(struct drm_i915_private *dev_priv);
 void i915_gem_retire_requests_ring(struct intel_engine_cs *engine);
 
+/* indicates the progress of engine reset or full gpu reset */
 static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
 {
-	return test_bit(I915_RESET_IN_PROGRESS, &error->flags);
+	return unlikely(READ_ONCE(error->flags) & ~BIT(I915_WEDGED));
 }
 
 static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
@@ -3214,6 +3217,17 @@ static inline u32 i915_reset_count(struct i915_gpu_error *error)
 	return READ_ONCE(error->reset_count);
 }
 
+static inline bool i915_full_gpu_reset_in_progress(struct i915_gpu_error *error)
+{
+	return test_bit(I915_RESET_IN_PROGRESS, &error->flags);
+}
+
+static inline bool i915_engine_reset_in_progress(struct i915_gpu_error *error,
+						 struct intel_engine_cs *engine)
+{
+	return test_bit(engine->id + 1, &error->flags);
+}
+
 void i915_gem_reset(struct drm_device *dev);
 bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
 int __must_check i915_gem_init(struct drm_device *dev);
-- 
1.9.1