drm/i915: Rename intel_context[engine].ringbuf

Perform s/ringbuf/ring/ on the context struct for consistency with the
ring/engine split.

v2: Kill an outdated error_ringbuf label

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1469432687-22756-14-git-send-email-chris@chris-wilson.co.uk
Link: http://patchwork.freedesktop.org/patch/msgid/1470174640-18242-3-git-send-email-chris@chris-wilson.co.uk

drivers/gpu/drm/i915/i915_debugfs.c

@@ -425,8 +425,8 @@ static int per_file_ctx_stats(int id, void *ptr, void *data)
 	for (n = 0; n < ARRAY_SIZE(ctx->engine); n++) {
 		if (ctx->engine[n].state)
 			per_file_stats(0, ctx->engine[n].state, data);
-		if (ctx->engine[n].ringbuf)
-			per_file_stats(0, ctx->engine[n].ringbuf->obj, data);
+		if (ctx->engine[n].ring)
+			per_file_stats(0, ctx->engine[n].ring->obj, data);
 	}
 
 	return 0;
@@ -2085,8 +2085,8 @@ static int i915_context_status(struct seq_file *m, void *unused)
 			seq_putc(m, ce->initialised ? 'I' : 'i');
 			if (ce->state)
 				describe_obj(m, ce->state);
-			if (ce->ringbuf)
-				describe_ctx_ringbuf(m, ce->ringbuf);
+			if (ce->ring)
+				describe_ctx_ringbuf(m, ce->ring);
 			seq_putc(m, '\n');
 		}
 

drivers/gpu/drm/i915/i915_drv.h

@@ -894,7 +894,7 @@ struct i915_gem_context {
 
 	struct intel_context {
 		struct drm_i915_gem_object *state;
-		struct intel_ringbuffer *ringbuf;
+		struct intel_ringbuffer *ring;
 		struct i915_vma *lrc_vma;
 		uint32_t *lrc_reg_state;
 		u64 lrc_desc;

drivers/gpu/drm/i915/i915_gem_context.c

@@ -173,8 +173,8 @@ void i915_gem_context_free(struct kref *ctx_ref)
 			continue;
 
 		WARN_ON(ce->pin_count);
-		if (ce->ringbuf)
-			intel_ringbuffer_free(ce->ringbuf);
+		if (ce->ring)
+			intel_ringbuffer_free(ce->ring);
 
 		i915_gem_object_put(ce->state);
 	}

drivers/gpu/drm/i915/i915_guc_submission.c

@@ -363,7 +363,7 @@ static void guc_init_ctx_desc(struct intel_guc *guc,
 		lrc->context_id = (client->ctx_index << GUC_ELC_CTXID_OFFSET) |
 				(engine->guc_id << GUC_ELC_ENGINE_OFFSET);
 
-		obj = ce->ringbuf->obj;
+		obj = ce->ring->obj;
 		gfx_addr = i915_gem_obj_ggtt_offset(obj);
 
 		lrc->ring_begin = gfx_addr;

drivers/gpu/drm/i915/intel_lrc.c

@@ -482,11 +482,8 @@ static void execlists_context_unqueue(struct intel_engine_cs *engine)
 		 * resubmit the request. See gen8_emit_request() for where we
 		 * prepare the padding after the end of the request.
 		 */
-		struct intel_ringbuffer *ringbuf;
-
-		ringbuf = req0->ctx->engine[engine->id].ringbuf;
 		req0->tail += 8;
-		req0->tail &= ringbuf->size - 1;
+		req0->tail &= req0->ring->size - 1;
 	}
 
 	execlists_submit_requests(req0, req1);
@@ -714,7 +711,7 @@ int intel_logical_ring_alloc_request_extras(struct drm_i915_gem_request *request
 			return ret;
 	}
 
-	request->ring = ce->ringbuf;
+	request->ring = ce->ring;
 
 	if (i915.enable_guc_submission) {
 		/*
@@ -976,14 +973,14 @@ static int intel_lr_context_pin(struct i915_gem_context *ctx,
 
 	lrc_reg_state = vaddr + LRC_STATE_PN * PAGE_SIZE;
 
-	ret = intel_pin_and_map_ringbuffer_obj(dev_priv, ce->ringbuf);
+	ret = intel_pin_and_map_ringbuffer_obj(dev_priv, ce->ring);
 	if (ret)
 		goto unpin_map;
 
 	ce->lrc_vma = i915_gem_obj_to_ggtt(ce->state);
 	intel_lr_context_descriptor_update(ctx, engine);
 
-	lrc_reg_state[CTX_RING_BUFFER_START+1] = ce->ringbuf->vma->node.start;
+	lrc_reg_state[CTX_RING_BUFFER_START+1] = ce->ring->vma->node.start;
 	ce->lrc_reg_state = lrc_reg_state;
 	ce->state->dirty = true;
 
@@ -1014,7 +1011,7 @@ void intel_lr_context_unpin(struct i915_gem_context *ctx,
 	if (--ce->pin_count)
 		return;
 
-	intel_unpin_ringbuffer_obj(ce->ringbuf);
+	intel_unpin_ringbuffer_obj(ce->ring);
 
 	i915_gem_object_unpin_map(ce->state);
 	i915_gem_object_ggtt_unpin(ce->state);
@@ -2346,7 +2343,7 @@ static int execlists_context_deferred_alloc(struct i915_gem_context *ctx,
 	struct drm_i915_gem_object *ctx_obj;
 	struct intel_context *ce = &ctx->engine[engine->id];
 	uint32_t context_size;
-	struct intel_ringbuffer *ringbuf;
+	struct intel_ringbuffer *ring;
 	int ret;
 
 	WARN_ON(ce->state);
@@ -2362,29 +2359,29 @@ static int execlists_context_deferred_alloc(struct i915_gem_context *ctx,
 		return PTR_ERR(ctx_obj);
 	}
 
-	ringbuf = intel_engine_create_ringbuffer(engine, ctx->ring_size);
-	if (IS_ERR(ringbuf)) {
-		ret = PTR_ERR(ringbuf);
+	ring = intel_engine_create_ringbuffer(engine, ctx->ring_size);
+	if (IS_ERR(ring)) {
+		ret = PTR_ERR(ring);
 		goto error_deref_obj;
 	}
 
-	ret = populate_lr_context(ctx, ctx_obj, engine, ringbuf);
+	ret = populate_lr_context(ctx, ctx_obj, engine, ring);
 	if (ret) {
 		DRM_DEBUG_DRIVER("Failed to populate LRC: %d\n", ret);
-		goto error_ringbuf;
+		goto error_ring_free;
 	}
 
-	ce->ringbuf = ringbuf;
+	ce->ring = ring;
 	ce->state = ctx_obj;
 	ce->initialised = engine->init_context == NULL;
 
 	return 0;
 
-error_ringbuf:
-	intel_ringbuffer_free(ringbuf);
+error_ring_free:
+	intel_ringbuffer_free(ring);
 error_deref_obj:
 	i915_gem_object_put(ctx_obj);
-	ce->ringbuf = NULL;
+	ce->ring = NULL;
 	ce->state = NULL;
 	return ret;
 }
@@ -2415,7 +2412,7 @@ void intel_lr_context_reset(struct drm_i915_private *dev_priv,
 
 		i915_gem_object_unpin_map(ctx_obj);
 
-		ce->ringbuf->head = 0;
-		ce->ringbuf->tail = 0;
+		ce->ring->head = 0;
+		ce->ring->tail = 0;
 	}
 }