Now that we have disambuigated ring and engine, we can use the clearer
and more consistent name for the intel_ringbuffer pointer in the
request.

Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_gem.c            |   8 +-
 drivers/gpu/drm/i915/i915_gem_context.c    |   2 +-
 drivers/gpu/drm/i915/i915_gem_execbuffer.c |   4 +-
 drivers/gpu/drm/i915/i915_gem_gtt.c        |   6 +-
 drivers/gpu/drm/i915/i915_gem_request.c    |  20 ++--
 drivers/gpu/drm/i915/i915_gem_request.h    |   2 +-
 drivers/gpu/drm/i915/i915_gpu_error.c      |  31 +++---
 drivers/gpu/drm/i915/i915_guc_submission.c |   4 +-
 drivers/gpu/drm/i915/intel_display.c       |  10 +-
 drivers/gpu/drm/i915/intel_lrc.c           | 152 ++++++++++++++---------------
 drivers/gpu/drm/i915/intel_mocs.c          |  34 +++----
 drivers/gpu/drm/i915/intel_overlay.c       |  42 ++++----
 drivers/gpu/drm/i915/intel_ringbuffer.c    |  86 ++++++++--------
 13 files changed, 198 insertions(+), 203 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 6622c9bb3af8..430c439ece26 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4083,11 +4083,11 @@ int i915_gem_l3_remap(struct drm_i915_gem_request *req, 
int slice)
         * at initialization time.
         */
        for (i = 0; i < GEN7_L3LOG_SIZE / 4; i++) {
-               intel_ring_emit(req->ringbuf, MI_LOAD_REGISTER_IMM(1));
-               intel_ring_emit_reg(req->ringbuf, GEN7_L3LOG(slice, i));
-               intel_ring_emit(req->ringbuf, remap_info[i]);
+               intel_ring_emit(req->ring, MI_LOAD_REGISTER_IMM(1));
+               intel_ring_emit_reg(req->ring, GEN7_L3LOG(slice, i));
+               intel_ring_emit(req->ring, remap_info[i]);
        }
-       intel_ring_advance(req->ringbuf);
+       intel_ring_advance(req->ring);
 
        return ret;
 }
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c 
b/drivers/gpu/drm/i915/i915_gem_context.c
index dece033cf604..5b4e77a80c19 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -519,7 +519,7 @@ i915_gem_context_get(struct drm_i915_file_private 
*file_priv, u32 id)
 static inline int
 mi_set_context(struct drm_i915_gem_request *req, u32 hw_flags)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        u32 flags = hw_flags | MI_MM_SPACE_GTT;
        const int num_rings =
                /* Use an extended w/a on ivb+ if signalling from other rings */
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c 
b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index e7df91f9a51f..a0f5a997c2f2 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -1148,7 +1148,7 @@ i915_gem_execbuffer_retire_commands(struct 
i915_execbuffer_params *params)
 static int
 i915_reset_gen7_sol_offsets(struct drm_i915_gem_request *req)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        int ret, i;
 
        if (!IS_GEN7(req->i915) || req->engine->id != RCS) {
@@ -1229,7 +1229,7 @@ i915_gem_ringbuffer_submission(struct 
i915_execbuffer_params *params,
                               struct drm_i915_gem_execbuffer2 *args,
                               struct list_head *vmas)
 {
-       struct intel_ringbuffer *ring = params->request->ringbuf;
+       struct intel_ringbuffer *ring = params->request->ring;
        struct drm_i915_private *dev_priv = params->request->i915;
        u64 exec_start, exec_len;
        int instp_mode;
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c 
b/drivers/gpu/drm/i915/i915_gem_gtt.c
index cb7cb59d4c4a..38c109cda904 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -656,7 +656,7 @@ static int gen8_write_pdp(struct drm_i915_gem_request *req,
                          unsigned entry,
                          dma_addr_t addr)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        int ret;
 
        BUG_ON(entry >= 4);
@@ -1648,7 +1648,7 @@ static uint32_t get_pd_offset(struct i915_hw_ppgtt *ppgtt)
 static int hsw_mm_switch(struct i915_hw_ppgtt *ppgtt,
                         struct drm_i915_gem_request *req)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        int ret;
 
        /* NB: TLBs must be flushed and invalidated before a switch */
@@ -1686,7 +1686,7 @@ static int vgpu_mm_switch(struct i915_hw_ppgtt *ppgtt,
 static int gen7_mm_switch(struct i915_hw_ppgtt *ppgtt,
                          struct drm_i915_gem_request *req)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        int ret;
 
        /* NB: TLBs must be flushed and invalidated before a switch */
diff --git a/drivers/gpu/drm/i915/i915_gem_request.c 
b/drivers/gpu/drm/i915/i915_gem_request.c
index 8adf2c134048..4cc64d9cca12 100644
--- a/drivers/gpu/drm/i915/i915_gem_request.c
+++ b/drivers/gpu/drm/i915/i915_gem_request.c
@@ -255,7 +255,7 @@ int i915_gem_request_alloc(struct intel_engine_cs *engine,
         * to be redone if the request is not actually submitted straight
         * away, e.g. because a GPU scheduler has deferred it.
         */
-       intel_ring_reserved_space_reserve(req->ringbuf,
+       intel_ring_reserved_space_reserve(req->ring,
                                          MIN_SPACE_FOR_ADD_REQUEST);
        ret = intel_ring_begin(req, 0);
        if (ret) {
@@ -328,7 +328,7 @@ static void __i915_gem_request_release(struct 
drm_i915_gem_request *request)
 
 void i915_gem_request_cancel(struct drm_i915_gem_request *req)
 {
-       intel_ring_reserved_space_cancel(req->ringbuf);
+       intel_ring_reserved_space_cancel(req->ring);
        if (i915.enable_execlists) {
                if (req->ctx != req->engine->default_context)
                        intel_lr_context_unpin(req);
@@ -349,7 +349,7 @@ static void i915_gem_request_retire(struct 
drm_i915_gem_request *request)
         * Note this requires that we are always called in request
         * completion order.
         */
-       request->ringbuf->last_retired_head = request->postfix;
+       request->ring->last_retired_head = request->postfix;
        __i915_gem_request_release(request);
 }
 
@@ -401,23 +401,23 @@ void __i915_add_request(struct drm_i915_gem_request 
*request,
                        struct drm_i915_gem_object *obj,
                        bool flush_caches)
 {
-       struct intel_ringbuffer *ringbuf;
+       struct intel_ringbuffer *ring;
        u32 request_start;
        int ret;
 
        if (WARN_ON(request == NULL))
                return;
 
-       ringbuf = request->ringbuf;
+       ring = request->ring;
 
        /*
         * To ensure that this call will not fail, space for its emissions
         * should already have been reserved in the ring buffer. Let the ring
         * know that it is time to use that space up.
         */
-       intel_ring_reserved_space_use(ringbuf);
+       intel_ring_reserved_space_use(ring);
 
-       request_start = intel_ring_get_tail(ringbuf);
+       request_start = intel_ring_get_tail(ring);
        /*
         * Emit any outstanding flushes - execbuf can fail to emit the flush
         * after having emitted the batchbuffer command. Hence we need to fix
@@ -439,14 +439,14 @@ void __i915_add_request(struct drm_i915_gem_request 
*request,
         * GPU processing the request, we never over-estimate the
         * position of the head.
         */
-       request->postfix = intel_ring_get_tail(ringbuf);
+       request->postfix = intel_ring_get_tail(ring);
 
        if (i915.enable_execlists)
                ret = request->engine->emit_request(request);
        else {
                ret = request->engine->add_request(request);
 
-               request->tail = intel_ring_get_tail(ringbuf);
+               request->tail = intel_ring_get_tail(ring);
        }
        /* Not allowed to fail! */
        WARN(ret, "emit|add_request failed: %d!\n", ret);
@@ -471,7 +471,7 @@ void __i915_add_request(struct drm_i915_gem_request 
*request,
        i915_gem_mark_busy(request->i915);
 
        /* Sanity check that the reserved size was large enough. */
-       intel_ring_reserved_space_end(ringbuf);
+       intel_ring_reserved_space_end(ring);
 }
 
 
diff --git a/drivers/gpu/drm/i915/i915_gem_request.h 
b/drivers/gpu/drm/i915/i915_gem_request.h
index 802862e5007d..bd17e3a9a71d 100644
--- a/drivers/gpu/drm/i915/i915_gem_request.h
+++ b/drivers/gpu/drm/i915/i915_gem_request.h
@@ -79,7 +79,7 @@ struct drm_i915_gem_request {
         * context.
         */
        struct intel_context *ctx;
-       struct intel_ringbuffer *ringbuf;
+       struct intel_ringbuffer *ring;
 
        /** Batch buffer related to this request if any (used for
            error state dump only) */
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c 
b/drivers/gpu/drm/i915/i915_gpu_error.c
index 5bf208d8009e..b47ca1b7041f 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -993,21 +993,21 @@ static void i915_gem_record_rings(struct drm_device *dev,
        int i, count;
 
        for (i = 0; i < I915_NUM_RINGS; i++) {
-               struct intel_engine_cs *ring = &dev_priv->ring[i];
+               struct intel_engine_cs *engine = &dev_priv->ring[i];
 
                error->ring[i].pid = -1;
 
-               if (ring->dev == NULL)
+               if (engine->dev == NULL)
                        continue;
 
                error->ring[i].valid = true;
 
-               i915_record_ring_state(dev, error, ring, &error->ring[i]);
+               i915_record_ring_state(dev, error, engine, &error->ring[i]);
 
-               request = i915_gem_find_active_request(ring);
+               request = i915_gem_find_active_request(engine);
                if (request) {
                        struct i915_address_space *vm;
-                       struct intel_ringbuffer *rb;
+                       struct intel_ringbuffer *ring;
 
                        vm = request->ctx && request->ctx->ppgtt ?
                                &request->ctx->ppgtt->base :
@@ -1022,10 +1022,10 @@ static void i915_gem_record_rings(struct drm_device 
*dev,
                                                         request->batch_obj,
                                                         vm);
 
-                       if (HAS_BROKEN_CS_TLB(dev_priv->dev))
+                       if (HAS_BROKEN_CS_TLB(dev_priv))
                                error->ring[i].wa_batchbuffer =
                                        i915_error_ggtt_object_create(dev_priv,
-                                                            ring->scratch.obj);
+                                                                     
engine->scratch.obj);
 
                        if (request->pid) {
                                struct task_struct *task;
@@ -1041,21 +1041,22 @@ static void i915_gem_record_rings(struct drm_device 
*dev,
 
                        error->simulated |= request->ctx->flags & 
CONTEXT_NO_ERROR_CAPTURE;
 
-                       rb = request->ringbuf;
-                       error->ring[i].cpu_ring_head = rb->head;
-                       error->ring[i].cpu_ring_tail = rb->tail;
+                       ring = request->ring;
+                       error->ring[i].cpu_ring_head = ring->head;
+                       error->ring[i].cpu_ring_tail = ring->tail;
                        error->ring[i].ringbuffer =
                                i915_error_ggtt_object_create(dev_priv,
-                                                             rb->obj);
+                                                             ring->obj);
                }
 
                error->ring[i].hws_page =
-                       i915_error_ggtt_object_create(dev_priv, 
ring->status_page.obj);
+                       i915_error_ggtt_object_create(dev_priv,
+                                                     engine->status_page.obj);
 
-               i915_gem_record_active_context(ring, error, &error->ring[i]);
+               i915_gem_record_active_context(engine, error, &error->ring[i]);
 
                count = 0;
-               list_for_each_entry(request, &ring->request_list, list)
+               list_for_each_entry(request, &engine->request_list, list)
                        count++;
 
                error->ring[i].num_requests = count;
@@ -1068,7 +1069,7 @@ static void i915_gem_record_rings(struct drm_device *dev,
                }
 
                count = 0;
-               list_for_each_entry(request, &ring->request_list, list) {
+               list_for_each_entry(request, &engine->request_list, list) {
                        struct drm_i915_error_request *erq;
 
                        if (count >= error->ring[i].num_requests) {
diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c 
b/drivers/gpu/drm/i915/i915_guc_submission.c
index eaf680ce5c9c..e82cc9182dfa 100644
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -551,7 +551,7 @@ static int guc_add_workqueue_item(struct i915_guc_client 
*gc,
        wqi->context_desc = (u32)intel_lr_context_descriptor(rq->ctx, 
rq->engine);
 
        /* The GuC firmware wants the tail index in QWords, not bytes */
-       tail = rq->ringbuf->tail >> 3;
+       tail = rq->ring->tail >> 3;
        wqi->ring_tail = tail << WQ_RING_TAIL_SHIFT;
        wqi->fence_id = 0; /*XXX: what fence to be here */
 
@@ -567,7 +567,7 @@ static void lr_context_update(struct drm_i915_gem_request 
*rq)
 {
        enum intel_ring_id ring_id = rq->engine->id;
        struct drm_i915_gem_object *ctx_obj = rq->ctx->engine[ring_id].state;
-       struct drm_i915_gem_object *rb_obj = rq->ringbuf->obj;
+       struct drm_i915_gem_object *rb_obj = rq->ring->obj;
        struct page *page;
        uint32_t *reg_state;
 
diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index 323b0d905c89..0d42356f15b4 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -11052,7 +11052,7 @@ static int intel_gen2_queue_flip(struct drm_device *dev,
                                 struct drm_i915_gem_request *req,
                                 uint32_t flags)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
        u32 flip_mask;
        int ret;
@@ -11087,7 +11087,7 @@ static int intel_gen3_queue_flip(struct drm_device *dev,
                                 struct drm_i915_gem_request *req,
                                 uint32_t flags)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
        u32 flip_mask;
        int ret;
@@ -11119,7 +11119,7 @@ static int intel_gen4_queue_flip(struct drm_device *dev,
                                 struct drm_i915_gem_request *req,
                                 uint32_t flags)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        struct drm_i915_private *dev_priv = req->i915;
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
        uint32_t pf, pipesrc;
@@ -11158,7 +11158,7 @@ static int intel_gen6_queue_flip(struct drm_device *dev,
                                 struct drm_i915_gem_request *req,
                                 uint32_t flags)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        struct drm_i915_private *dev_priv = req->i915;
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
        uint32_t pf, pipesrc;
@@ -11194,7 +11194,7 @@ static int intel_gen7_queue_flip(struct drm_device *dev,
                                 struct drm_i915_gem_request *req,
                                 uint32_t flags)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
        uint32_t plane_bit = 0;
        int len, ret;
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 1b70a76df31d..87d325b6e7dc 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -360,7 +360,7 @@ static int execlists_update_context(struct 
drm_i915_gem_request *rq)
 {
        struct i915_hw_ppgtt *ppgtt = rq->ctx->ppgtt;
        struct drm_i915_gem_object *ctx_obj = 
rq->ctx->engine[rq->engine->id].state;
-       struct drm_i915_gem_object *rb_obj = rq->ringbuf->obj;
+       struct drm_i915_gem_object *rb_obj = rq->ring->obj;
        struct page *page;
        uint32_t *reg_state;
 
@@ -671,7 +671,7 @@ int intel_logical_ring_alloc_request_extras(struct 
drm_i915_gem_request *request
 {
        int ret;
 
-       request->ringbuf = request->ctx->engine[request->engine->id].ringbuf;
+       request->ring = request->ctx->engine[request->engine->id].ringbuf;
 
        if (request->ctx != request->engine->default_context) {
                ret = intel_lr_context_pin(request);
@@ -709,8 +709,8 @@ intel_logical_ring_advance_and_submit(struct 
drm_i915_gem_request *request)
 {
        struct drm_i915_private *dev_priv = request->i915;
 
-       intel_ring_advance(request->ringbuf);
-       request->tail = request->ringbuf->tail;
+       intel_ring_advance(request->ring);
+       request->tail = request->ring->tail;
 
        if (dev_priv->guc.execbuf_client)
                i915_guc_submit(dev_priv->guc.execbuf_client, request);
@@ -740,9 +740,9 @@ int intel_execlists_submission(struct 
i915_execbuffer_params *params,
                               struct list_head *vmas)
 {
        struct drm_device       *dev = params->dev;
-       struct intel_engine_cs  *ring = params->ring;
+       struct intel_engine_cs  *engine = params->ring;
        struct drm_i915_private *dev_priv = dev->dev_private;
-       struct intel_ringbuffer *ringbuf = 
params->ctx->engine[ring->id].ringbuf;
+       struct intel_ringbuffer *ring = params->request->ring;
        u64 exec_start;
        int instp_mode;
        u32 instp_mask;
@@ -754,7 +754,7 @@ int intel_execlists_submission(struct 
i915_execbuffer_params *params,
        case I915_EXEC_CONSTANTS_REL_GENERAL:
        case I915_EXEC_CONSTANTS_ABSOLUTE:
        case I915_EXEC_CONSTANTS_REL_SURFACE:
-               if (instp_mode != 0 && ring != &dev_priv->ring[RCS]) {
+               if (instp_mode != 0 && engine->id != RCS) {
                        DRM_DEBUG("non-0 rel constants mode on non-RCS\n");
                        return -EINVAL;
                }
@@ -783,17 +783,17 @@ int intel_execlists_submission(struct 
i915_execbuffer_params *params,
        if (ret)
                return ret;
 
-       if (ring == &dev_priv->ring[RCS] &&
+       if (engine->id == RCS &&
            instp_mode != dev_priv->relative_constants_mode) {
                ret = intel_ring_begin(params->request, 4);
                if (ret)
                        return ret;
 
-               intel_ring_emit(ringbuf, MI_NOOP);
-               intel_ring_emit(ringbuf, MI_LOAD_REGISTER_IMM(1));
-               intel_ring_emit_reg(ringbuf, INSTPM);
-               intel_ring_emit(ringbuf, instp_mask << 16 | instp_mode);
-               intel_ring_advance(ringbuf);
+               intel_ring_emit(ring, MI_NOOP);
+               intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1));
+               intel_ring_emit_reg(ring, INSTPM);
+               intel_ring_emit(ring, instp_mask << 16 | instp_mode);
+               intel_ring_advance(ring);
 
                dev_priv->relative_constants_mode = instp_mode;
        }
@@ -801,7 +801,7 @@ int intel_execlists_submission(struct 
i915_execbuffer_params *params,
        exec_start = params->batch_obj_vm_offset +
                     args->batch_start_offset;
 
-       ret = ring->emit_bb_start(params->request, exec_start, 
params->dispatch_flags);
+       ret = engine->emit_bb_start(params->request, exec_start, 
params->dispatch_flags);
        if (ret)
                return ret;
 
@@ -880,13 +880,12 @@ static int intel_lr_context_do_pin(struct intel_engine_cs 
*ring,
                struct drm_i915_gem_object *ctx_obj,
                struct intel_ringbuffer *ringbuf)
 {
-       struct drm_device *dev = ring->dev;
-       struct drm_i915_private *dev_priv = dev->dev_private;
+       struct drm_i915_private *dev_priv = ring->i915;
        int ret = 0;
 
        WARN_ON(!mutex_is_locked(&ring->dev->struct_mutex));
        ret = i915_gem_obj_ggtt_pin(ctx_obj, GEN8_LR_CONTEXT_ALIGN,
-                       PIN_OFFSET_BIAS | GUC_WOPCM_TOP);
+                                   PIN_OFFSET_BIAS | GUC_WOPCM_TOP);
        if (ret)
                return ret;
 
@@ -918,7 +917,7 @@ static int intel_lr_context_pin(struct drm_i915_gem_request 
*rq)
 
        ret = intel_lr_context_do_pin(rq->engine,
                                      rq->ctx->engine[engine].state,
-                                     rq->ringbuf);
+                                     rq->ring);
        if (ret) {
                rq->ctx->engine[engine].pin_count = 0;
                return ret;
@@ -932,12 +931,12 @@ void intel_lr_context_unpin(struct drm_i915_gem_request 
*rq)
 {
        int engine = rq->engine->id;
        struct drm_i915_gem_object *ctx_obj = rq->ctx->engine[engine].state;
-       struct intel_ringbuffer *ringbuf = rq->ringbuf;
+       struct intel_ringbuffer *ring = rq->ring;
 
        if (ctx_obj) {
                WARN_ON(!mutex_is_locked(&rq->i915->dev->struct_mutex));
                if (--rq->ctx->engine[engine].pin_count == 0) {
-                       intel_unpin_ringbuffer_obj(ringbuf);
+                       intel_unpin_ringbuffer_obj(ring);
                        i915_gem_object_ggtt_unpin(ctx_obj);
                        i915_gem_context_unreference(rq->ctx);
                }
@@ -948,7 +947,7 @@ static int intel_logical_ring_workarounds_emit(struct 
drm_i915_gem_request *req)
 {
        int ret, i;
        struct intel_engine_cs *engine = req->engine;
-       struct intel_ringbuffer *ringbuf = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        struct drm_i915_private *dev_priv = req->i915;
        struct i915_workarounds *w = &dev_priv->workarounds;
 
@@ -964,14 +963,14 @@ static int intel_logical_ring_workarounds_emit(struct 
drm_i915_gem_request *req)
        if (ret)
                return ret;
 
-       intel_ring_emit(ringbuf, MI_LOAD_REGISTER_IMM(w->count));
+       intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(w->count));
        for (i = 0; i < w->count; i++) {
-               intel_ring_emit_reg(ringbuf, w->reg[i].addr);
-               intel_ring_emit(ringbuf, w->reg[i].value);
+               intel_ring_emit_reg(ring, w->reg[i].addr);
+               intel_ring_emit(ring, w->reg[i].value);
        }
-       intel_ring_emit(ringbuf, MI_NOOP);
+       intel_ring_emit(ring, MI_NOOP);
 
-       intel_ring_advance(ringbuf);
+       intel_ring_advance(ring);
 
        engine->gpu_caches_dirty = true;
        ret = logical_ring_flush_all_caches(req);
@@ -1418,7 +1417,7 @@ static int intel_logical_ring_emit_pdps(struct 
drm_i915_gem_request *req)
 {
        struct i915_hw_ppgtt *ppgtt = req->ctx->ppgtt;
        struct intel_engine_cs *engine = req->engine;
-       struct intel_ringbuffer *ringbuf = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        const int num_lri_cmds = GEN8_LEGACY_PDPES * 2;
        int i, ret;
 
@@ -1426,18 +1425,18 @@ static int intel_logical_ring_emit_pdps(struct 
drm_i915_gem_request *req)
        if (ret)
                return ret;
 
-       intel_ring_emit(ringbuf, MI_LOAD_REGISTER_IMM(num_lri_cmds));
+       intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(num_lri_cmds));
        for (i = GEN8_LEGACY_PDPES - 1; i >= 0; i--) {
                const dma_addr_t pd_daddr = i915_page_dir_dma_addr(ppgtt, i);
 
-               intel_ring_emit_reg(ringbuf, GEN8_RING_PDP_UDW(engine, i));
-               intel_ring_emit(ringbuf, upper_32_bits(pd_daddr));
-               intel_ring_emit_reg(ringbuf, GEN8_RING_PDP_LDW(engine, i));
-               intel_ring_emit(ringbuf, lower_32_bits(pd_daddr));
+               intel_ring_emit_reg(ring, GEN8_RING_PDP_UDW(engine, i));
+               intel_ring_emit(ring, upper_32_bits(pd_daddr));
+               intel_ring_emit_reg(ring, GEN8_RING_PDP_LDW(engine, i));
+               intel_ring_emit(ring, lower_32_bits(pd_daddr));
        }
 
-       intel_ring_emit(ringbuf, MI_NOOP);
-       intel_ring_advance(ringbuf);
+       intel_ring_emit(ring, MI_NOOP);
+       intel_ring_advance(ring);
 
        return 0;
 }
@@ -1445,7 +1444,7 @@ static int intel_logical_ring_emit_pdps(struct 
drm_i915_gem_request *req)
 static int gen8_emit_bb_start(struct drm_i915_gem_request *req,
                              u64 offset, unsigned dispatch_flags)
 {
-       struct intel_ringbuffer *ringbuf = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        bool ppgtt = !(dispatch_flags & I915_DISPATCH_SECURE);
        int ret;
 
@@ -1472,14 +1471,14 @@ static int gen8_emit_bb_start(struct 
drm_i915_gem_request *req,
                return ret;
 
        /* FIXME(BDW): Address space and security selectors. */
-       intel_ring_emit(ringbuf, MI_BATCH_BUFFER_START_GEN8 |
+       intel_ring_emit(ring, MI_BATCH_BUFFER_START_GEN8 |
                        (ppgtt<<8) |
                        (dispatch_flags & I915_DISPATCH_RS ?
                         MI_BATCH_RESOURCE_STREAMER : 0));
-       intel_ring_emit(ringbuf, lower_32_bits(offset));
-       intel_ring_emit(ringbuf, upper_32_bits(offset));
-       intel_ring_emit(ringbuf, MI_NOOP);
-       intel_ring_advance(ringbuf);
+       intel_ring_emit(ring, lower_32_bits(offset));
+       intel_ring_emit(ring, upper_32_bits(offset));
+       intel_ring_emit(ring, MI_NOOP);
+       intel_ring_advance(ring);
 
        return 0;
 }
@@ -1504,10 +1503,7 @@ static int gen8_emit_flush(struct drm_i915_gem_request 
*request,
                           u32 invalidate_domains,
                           u32 unused)
 {
-       struct intel_ringbuffer *ringbuf = request->ringbuf;
-       struct intel_engine_cs *ring = ringbuf->ring;
-       struct drm_device *dev = ring->dev;
-       struct drm_i915_private *dev_priv = dev->dev_private;
+       struct intel_ringbuffer *ring = request->ring;
        uint32_t cmd;
        int ret;
 
@@ -1526,17 +1522,17 @@ static int gen8_emit_flush(struct drm_i915_gem_request 
*request,
 
        if (invalidate_domains & I915_GEM_GPU_DOMAINS) {
                cmd |= MI_INVALIDATE_TLB;
-               if (ring == &dev_priv->ring[VCS])
+               if (request->engine->id == VCS)
                        cmd |= MI_INVALIDATE_BSD;
        }
 
-       intel_ring_emit(ringbuf, cmd);
-       intel_ring_emit(ringbuf,
+       intel_ring_emit(ring, cmd);
+       intel_ring_emit(ring,
                        I915_GEM_HWS_SCRATCH_ADDR |
                        MI_FLUSH_DW_USE_GTT);
-       intel_ring_emit(ringbuf, 0); /* upper addr */
-       intel_ring_emit(ringbuf, 0); /* value */
-       intel_ring_advance(ringbuf);
+       intel_ring_emit(ring, 0); /* upper addr */
+       intel_ring_emit(ring, 0); /* value */
+       intel_ring_advance(ring);
 
        return 0;
 }
@@ -1545,9 +1541,8 @@ static int gen8_emit_flush_render(struct 
drm_i915_gem_request *request,
                                  u32 invalidate_domains,
                                  u32 flush_domains)
 {
-       struct intel_ringbuffer *ringbuf = request->ringbuf;
-       struct intel_engine_cs *ring = ringbuf->ring;
-       u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES;
+       struct intel_ringbuffer *ring = request->ring;
+       u32 scratch_addr = request->engine->scratch.gtt_offset + 2 * 
CACHELINE_BYTES;
        bool vf_flush_wa = false;
        u32 flags = 0;
        int ret;
@@ -1574,7 +1569,7 @@ static int gen8_emit_flush_render(struct 
drm_i915_gem_request *request,
                 * On GEN9: before VF_CACHE_INVALIDATE we need to emit a NULL
                 * pipe control.
                 */
-               if (IS_GEN9(ring->dev))
+               if (IS_GEN9(request->i915))
                        vf_flush_wa = true;
        }
 
@@ -1583,21 +1578,21 @@ static int gen8_emit_flush_render(struct 
drm_i915_gem_request *request,
                return ret;
 
        if (vf_flush_wa) {
-               intel_ring_emit(ringbuf, GFX_OP_PIPE_CONTROL(6));
-               intel_ring_emit(ringbuf, 0);
-               intel_ring_emit(ringbuf, 0);
-               intel_ring_emit(ringbuf, 0);
-               intel_ring_emit(ringbuf, 0);
-               intel_ring_emit(ringbuf, 0);
+               intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(6));
+               intel_ring_emit(ring, 0);
+               intel_ring_emit(ring, 0);
+               intel_ring_emit(ring, 0);
+               intel_ring_emit(ring, 0);
+               intel_ring_emit(ring, 0);
        }
 
-       intel_ring_emit(ringbuf, GFX_OP_PIPE_CONTROL(6));
-       intel_ring_emit(ringbuf, flags);
-       intel_ring_emit(ringbuf, scratch_addr);
-       intel_ring_emit(ringbuf, 0);
-       intel_ring_emit(ringbuf, 0);
-       intel_ring_emit(ringbuf, 0);
-       intel_ring_advance(ringbuf);
+       intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(6));
+       intel_ring_emit(ring, flags);
+       intel_ring_emit(ring, scratch_addr);
+       intel_ring_emit(ring, 0);
+       intel_ring_emit(ring, 0);
+       intel_ring_emit(ring, 0);
+       intel_ring_advance(ring);
 
        return 0;
 }
@@ -1625,8 +1620,7 @@ gen6_seqno_barrier(struct intel_engine_cs *ring)
 
 static int gen8_emit_request(struct drm_i915_gem_request *request)
 {
-       struct intel_ringbuffer *ringbuf = request->ringbuf;
-       struct intel_engine_cs *ring = ringbuf->ring;
+       struct intel_ringbuffer *ring = request->ring;
        u32 cmd;
        int ret;
 
@@ -1642,23 +1636,23 @@ static int gen8_emit_request(struct 
drm_i915_gem_request *request)
        cmd = MI_STORE_DWORD_IMM_GEN4;
        cmd |= MI_GLOBAL_GTT;
 
-       intel_ring_emit(ringbuf, cmd);
-       intel_ring_emit(ringbuf,
-                       (ring->status_page.gfx_addr +
+       intel_ring_emit(ring, cmd);
+       intel_ring_emit(ring,
+                       (request->engine->status_page.gfx_addr +
                         (I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT)));
-       intel_ring_emit(ringbuf, 0);
-       intel_ring_emit(ringbuf, request->fence.seqno);
-       intel_ring_emit(ringbuf, MI_USER_INTERRUPT);
-       intel_ring_emit(ringbuf, MI_NOOP);
+       intel_ring_emit(ring, 0);
+       intel_ring_emit(ring, request->fence.seqno);
+       intel_ring_emit(ring, MI_USER_INTERRUPT);
+       intel_ring_emit(ring, MI_NOOP);
        intel_logical_ring_advance_and_submit(request);
 
        /*
         * Here we add two extra NOOPs as padding to avoid
         * lite restore of a context with HEAD==TAIL.
         */
-       intel_ring_emit(ringbuf, MI_NOOP);
-       intel_ring_emit(ringbuf, MI_NOOP);
-       intel_ring_advance(ringbuf);
+       intel_ring_emit(ring, MI_NOOP);
+       intel_ring_emit(ring, MI_NOOP);
+       intel_ring_advance(ring);
 
        return 0;
 }
diff --git a/drivers/gpu/drm/i915/intel_mocs.c 
b/drivers/gpu/drm/i915/intel_mocs.c
index 40041bebc3dc..039c7405f640 100644
--- a/drivers/gpu/drm/i915/intel_mocs.c
+++ b/drivers/gpu/drm/i915/intel_mocs.c
@@ -191,9 +191,9 @@ static i915_reg_t mocs_register(enum intel_ring_id ring, 
int index)
  */
 static int emit_mocs_control_table(struct drm_i915_gem_request *req,
                                   const struct drm_i915_mocs_table *table,
-                                  enum intel_ring_id ring)
+                                  enum intel_ring_id id)
 {
-       struct intel_ringbuffer *ringbuf = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        unsigned int index;
        int ret;
 
@@ -204,11 +204,11 @@ static int emit_mocs_control_table(struct 
drm_i915_gem_request *req,
        if (ret)
                return ret;
 
-       intel_ring_emit(ringbuf, MI_LOAD_REGISTER_IMM(GEN9_NUM_MOCS_ENTRIES));
+       intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(GEN9_NUM_MOCS_ENTRIES));
 
        for (index = 0; index < table->size; index++) {
-               intel_ring_emit_reg(ringbuf, mocs_register(ring, index));
-               intel_ring_emit(ringbuf, table->table[index].control_value);
+               intel_ring_emit_reg(ring, mocs_register(id, index));
+               intel_ring_emit(ring, table->table[index].control_value);
        }
 
        /*
@@ -220,12 +220,12 @@ static int emit_mocs_control_table(struct 
drm_i915_gem_request *req,
         * that value to all the used entries.
         */
        for (; index < GEN9_NUM_MOCS_ENTRIES; index++) {
-               intel_ring_emit_reg(ringbuf, mocs_register(ring, index));
-               intel_ring_emit(ringbuf, table->table[0].control_value);
+               intel_ring_emit_reg(ring, mocs_register(id, index));
+               intel_ring_emit(ring, table->table[0].control_value);
        }
 
-       intel_ring_emit(ringbuf, MI_NOOP);
-       intel_ring_advance(ringbuf);
+       intel_ring_emit(ring, MI_NOOP);
+       intel_ring_advance(ring);
 
        return 0;
 }
@@ -244,7 +244,7 @@ static int emit_mocs_control_table(struct 
drm_i915_gem_request *req,
 static int emit_mocs_l3cc_table(struct drm_i915_gem_request *req,
                                const struct drm_i915_mocs_table *table)
 {
-       struct intel_ringbuffer *ringbuf = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        unsigned int count;
        unsigned int i;
        u32 value;
@@ -259,15 +259,15 @@ static int emit_mocs_l3cc_table(struct 
drm_i915_gem_request *req,
        if (ret)
                return ret;
 
-       intel_ring_emit(ringbuf,
+       intel_ring_emit(ring,
                        MI_LOAD_REGISTER_IMM(GEN9_NUM_MOCS_ENTRIES / 2));
 
        for (i = 0, count = 0; i < table->size / 2; i++, count += 2) {
                value = (table->table[count].l3cc_value & 0xffff) |
                        ((table->table[count + 1].l3cc_value & 0xffff) << 16);
 
-               intel_ring_emit_reg(ringbuf, GEN9_LNCFCMOCS(i));
-               intel_ring_emit(ringbuf, value);
+               intel_ring_emit_reg(ring, GEN9_LNCFCMOCS(i));
+               intel_ring_emit(ring, value);
        }
 
        if (table->size & 0x01) {
@@ -283,14 +283,14 @@ static int emit_mocs_l3cc_table(struct 
drm_i915_gem_request *req,
         * they are reserved by the hardware.
         */
        for (; i < GEN9_NUM_MOCS_ENTRIES / 2; i++) {
-               intel_ring_emit_reg(ringbuf, GEN9_LNCFCMOCS(i));
-               intel_ring_emit(ringbuf, value);
+               intel_ring_emit_reg(ring, GEN9_LNCFCMOCS(i));
+               intel_ring_emit(ring, value);
 
                value = filler;
        }
 
-       intel_ring_emit(ringbuf, MI_NOOP);
-       intel_ring_advance(ringbuf);
+       intel_ring_emit(ring, MI_NOOP);
+       intel_ring_advance(ring);
 
        return 0;
 }
diff --git a/drivers/gpu/drm/i915/intel_overlay.c 
b/drivers/gpu/drm/i915/intel_overlay.c
index 6dca0e470e61..cb73d16848b0 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -252,11 +252,11 @@ static int intel_overlay_on(struct intel_overlay *overlay)
 
        overlay->active = true;
 
-       intel_ring_emit(req->ringbuf, MI_OVERLAY_FLIP | MI_OVERLAY_ON);
-       intel_ring_emit(req->ringbuf, overlay->flip_addr | OFC_UPDATE);
-       intel_ring_emit(req->ringbuf, MI_WAIT_FOR_EVENT | 
MI_WAIT_FOR_OVERLAY_FLIP);
-       intel_ring_emit(req->ringbuf, MI_NOOP);
-       intel_ring_advance(req->ringbuf);
+       intel_ring_emit(req->ring, MI_OVERLAY_FLIP | MI_OVERLAY_ON);
+       intel_ring_emit(req->ring, overlay->flip_addr | OFC_UPDATE);
+       intel_ring_emit(req->ring, MI_WAIT_FOR_EVENT | 
MI_WAIT_FOR_OVERLAY_FLIP);
+       intel_ring_emit(req->ring, MI_NOOP);
+       intel_ring_advance(req->ring);
 
        return intel_overlay_do_wait_request(overlay, req, NULL);
 }
@@ -293,9 +293,9 @@ static int intel_overlay_continue(struct intel_overlay 
*overlay,
                return ret;
        }
 
-       intel_ring_emit(req->ringbuf, MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE);
-       intel_ring_emit(req->ringbuf, flip_addr);
-       intel_ring_advance(req->ringbuf);
+       intel_ring_emit(req->ring, MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE);
+       intel_ring_emit(req->ring, flip_addr);
+       intel_ring_advance(req->ring);
 
        WARN_ON(overlay->last_flip_req);
        i915_gem_request_assign(&overlay->last_flip_req, req);
@@ -360,22 +360,22 @@ static int intel_overlay_off(struct intel_overlay 
*overlay)
        }
 
        /* wait for overlay to go idle */
-       intel_ring_emit(req->ringbuf, MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE);
-       intel_ring_emit(req->ringbuf, flip_addr);
-       intel_ring_emit(req->ringbuf, MI_WAIT_FOR_EVENT | 
MI_WAIT_FOR_OVERLAY_FLIP);
+       intel_ring_emit(req->ring, MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE);
+       intel_ring_emit(req->ring, flip_addr);
+       intel_ring_emit(req->ring, MI_WAIT_FOR_EVENT | 
MI_WAIT_FOR_OVERLAY_FLIP);
        /* turn overlay off */
        if (IS_I830(dev)) {
                /* Workaround: Don't disable the overlay fully, since otherwise
                 * it dies on the next OVERLAY_ON cmd. */
-               intel_ring_emit(req->ringbuf, MI_NOOP);
-               intel_ring_emit(req->ringbuf, MI_NOOP);
-               intel_ring_emit(req->ringbuf, MI_NOOP);
+               intel_ring_emit(req->ring, MI_NOOP);
+               intel_ring_emit(req->ring, MI_NOOP);
+               intel_ring_emit(req->ring, MI_NOOP);
        } else {
-               intel_ring_emit(req->ringbuf, MI_OVERLAY_FLIP | MI_OVERLAY_OFF);
-               intel_ring_emit(req->ringbuf, flip_addr);
-               intel_ring_emit(req->ringbuf, MI_WAIT_FOR_EVENT | 
MI_WAIT_FOR_OVERLAY_FLIP);
+               intel_ring_emit(req->ring, MI_OVERLAY_FLIP | MI_OVERLAY_OFF);
+               intel_ring_emit(req->ring, flip_addr);
+               intel_ring_emit(req->ring, MI_WAIT_FOR_EVENT | 
MI_WAIT_FOR_OVERLAY_FLIP);
        }
-       intel_ring_advance(req->ringbuf);
+       intel_ring_advance(req->ring);
 
        return intel_overlay_do_wait_request(overlay, req, 
intel_overlay_off_tail);
 }
@@ -433,9 +433,9 @@ static int intel_overlay_release_old_vid(struct 
intel_overlay *overlay)
                        return ret;
                }
 
-               intel_ring_emit(req->ringbuf, MI_WAIT_FOR_EVENT | 
MI_WAIT_FOR_OVERLAY_FLIP);
-               intel_ring_emit(req->ringbuf, MI_NOOP);
-               intel_ring_advance(req->ringbuf);
+               intel_ring_emit(req->ring, MI_WAIT_FOR_EVENT | 
MI_WAIT_FOR_OVERLAY_FLIP);
+               intel_ring_emit(req->ring, MI_NOOP);
+               intel_ring_advance(req->ring);
 
                ret = intel_overlay_do_wait_request(overlay, req,
                                                    
intel_overlay_release_old_vid_tail);
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c 
b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 072fd0fc7748..ae00e79c9c99 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -71,7 +71,7 @@ gen2_render_ring_flush(struct drm_i915_gem_request *req,
                       u32      invalidate_domains,
                       u32      flush_domains)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        u32 cmd;
        int ret;
 
@@ -98,7 +98,7 @@ gen4_render_ring_flush(struct drm_i915_gem_request *req,
                       u32      invalidate_domains,
                       u32      flush_domains)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        u32 cmd;
        int ret;
 
@@ -191,7 +191,7 @@ gen4_render_ring_flush(struct drm_i915_gem_request *req,
 static int
 intel_emit_post_sync_nonzero_flush(struct drm_i915_gem_request *req)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        u32 scratch_addr = req->engine->scratch.gtt_offset + 2 * 
CACHELINE_BYTES;
        int ret;
 
@@ -227,7 +227,7 @@ static int
 gen6_render_ring_flush(struct drm_i915_gem_request *req,
                       u32 invalidate_domains, u32 flush_domains)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        u32 flags = 0;
        u32 scratch_addr = req->engine->scratch.gtt_offset + 2 * 
CACHELINE_BYTES;
        int ret;
@@ -279,7 +279,7 @@ gen6_render_ring_flush(struct drm_i915_gem_request *req,
 static int
 gen7_render_ring_cs_stall_wa(struct drm_i915_gem_request *req)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        int ret;
 
        ret = intel_ring_begin(req, 4);
@@ -300,7 +300,7 @@ static int
 gen7_render_ring_flush(struct drm_i915_gem_request *req,
                       u32 invalidate_domains, u32 flush_domains)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        u32 flags = 0;
        u32 scratch_addr = req->engine->scratch.gtt_offset + 2 * 
CACHELINE_BYTES;
        int ret;
@@ -363,7 +363,7 @@ static int
 gen8_emit_pipe_control(struct drm_i915_gem_request *req,
                       u32 flags, u32 scratch_addr)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        int ret;
 
        ret = intel_ring_begin(req, 6);
@@ -688,7 +688,7 @@ err:
 
 static int intel_ring_workarounds_emit(struct drm_i915_gem_request *req)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        struct drm_i915_private *dev_priv = req->i915;
        struct i915_workarounds *w = &dev_priv->workarounds;
        int ret, i;
@@ -1191,7 +1191,7 @@ static int gen8_rcs_signal(struct drm_i915_gem_request 
*signaller_req,
                           unsigned int num_dwords)
 {
 #define MBOX_UPDATE_DWORDS 8
-       struct intel_ringbuffer *signaller = signaller_req->ringbuf;
+       struct intel_ringbuffer *signaller = signaller_req->ring;
        struct drm_i915_private *dev_priv = signaller_req->i915;
        struct intel_engine_cs *waiter;
        int i, ret, num_rings;
@@ -1229,7 +1229,7 @@ static int gen8_xcs_signal(struct drm_i915_gem_request 
*signaller_req,
                           unsigned int num_dwords)
 {
 #define MBOX_UPDATE_DWORDS 6
-       struct intel_ringbuffer *signaller = signaller_req->ringbuf;
+       struct intel_ringbuffer *signaller = signaller_req->ring;
        struct drm_i915_private *dev_priv = signaller_req->i915;
        struct intel_engine_cs *waiter;
        int i, ret, num_rings;
@@ -1264,7 +1264,7 @@ static int gen8_xcs_signal(struct drm_i915_gem_request 
*signaller_req,
 static int gen6_signal(struct drm_i915_gem_request *signaller_req,
                       unsigned int num_dwords)
 {
-       struct intel_ringbuffer *signaller = signaller_req->ringbuf;
+       struct intel_ringbuffer *signaller = signaller_req->ring;
        struct drm_i915_private *dev_priv = signaller_req->i915;
        struct intel_engine_cs *useless;
        int i, ret, num_rings;
@@ -1306,7 +1306,7 @@ static int gen6_signal(struct drm_i915_gem_request 
*signaller_req,
 static int
 gen6_add_request(struct drm_i915_gem_request *req)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        int ret;
 
        if (req->engine->semaphore.signal)
@@ -1345,7 +1345,7 @@ gen8_ring_sync(struct drm_i915_gem_request *waiter_req,
               struct intel_engine_cs *signaller,
               u32 seqno)
 {
-       struct intel_ringbuffer *waiter = waiter_req->ringbuf;
+       struct intel_ringbuffer *waiter = waiter_req->ring;
        struct drm_i915_private *dev_priv = waiter_req->i915;
        int ret;
 
@@ -1373,7 +1373,7 @@ gen6_ring_sync(struct drm_i915_gem_request *waiter_req,
               struct intel_engine_cs *signaller,
               u32 seqno)
 {
-       struct intel_ringbuffer *waiter = waiter_req->ringbuf;
+       struct intel_ringbuffer *waiter = waiter_req->ring;
        u32 dw1 = MI_SEMAPHORE_MBOX |
                  MI_SEMAPHORE_COMPARE |
                  MI_SEMAPHORE_REGISTER;
@@ -1421,7 +1421,7 @@ do {                                                      
                \
 static int
 pc_render_add_request(struct drm_i915_gem_request *req)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        u32 addr = req->engine->status_page.gfx_addr +
                (I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
        u32 scratch_addr = addr;
@@ -1548,7 +1548,7 @@ bsd_ring_flush(struct drm_i915_gem_request *req,
               u32     invalidate_domains,
               u32     flush_domains)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        int ret;
 
        ret = intel_ring_begin(req, 2);
@@ -1564,7 +1564,7 @@ bsd_ring_flush(struct drm_i915_gem_request *req,
 static int
 i9xx_add_request(struct drm_i915_gem_request *req)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        int ret;
 
        ret = intel_ring_begin(req, 4);
@@ -1658,7 +1658,7 @@ i965_dispatch_execbuffer(struct drm_i915_gem_request *req,
                         u64 offset, u32 length,
                         unsigned dispatch_flags)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        int ret;
 
        ret = intel_ring_begin(req, 2);
@@ -1685,7 +1685,7 @@ i830_dispatch_execbuffer(struct drm_i915_gem_request *req,
                         u64 offset, u32 len,
                         unsigned dispatch_flags)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        u32 cs_offset = req->engine->scratch.gtt_offset;
        int ret;
 
@@ -1748,7 +1748,7 @@ i915_dispatch_execbuffer(struct drm_i915_gem_request *req,
                         u64 offset, u32 len,
                         unsigned dispatch_flags)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        int ret;
 
        ret = intel_ring_begin(req, 2);
@@ -2082,7 +2082,7 @@ int intel_ring_idle(struct intel_engine_cs *ring)
 
 int intel_ring_alloc_request_extras(struct drm_i915_gem_request *request)
 {
-       request->ringbuf = request->engine->buffer;
+       request->ring = request->engine->buffer;
        return 0;
 }
 
@@ -2135,17 +2135,17 @@ void intel_ring_reserved_space_end(struct 
intel_ringbuffer *ringbuf)
 
 static int wait_for_space(struct drm_i915_gem_request *req, int bytes)
 {
-       struct intel_ringbuffer *ringbuf = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        struct intel_engine_cs *engine = req->engine;
        struct drm_i915_gem_request *target;
        unsigned space;
        int ret;
 
-       if (intel_ring_space(ringbuf) >= bytes)
+       if (intel_ring_space(ring) >= bytes)
                return 0;
 
        /* The whole point of reserving space is to not wait! */
-       WARN_ON(ringbuf->reserved_in_use);
+       WARN_ON(ring->reserved_in_use);
 
        list_for_each_entry(target, &engine->request_list, list) {
                /*
@@ -2153,12 +2153,12 @@ static int wait_for_space(struct drm_i915_gem_request 
*req, int bytes)
                 * from multiple ringbuffers. Here, we must ignore any that
                 * aren't from the ringbuffer we're considering.
                 */
-               if (target->ringbuf != ringbuf)
+               if (target->ring != ring)
                        continue;
 
                /* Would completion of this request free enough space? */
-               space = __intel_ring_space(target->postfix, ringbuf->tail,
-                                          ringbuf->size);
+               space = __intel_ring_space(target->postfix, ring->tail,
+                                          ring->size);
                if (space >= bytes)
                        break;
        }
@@ -2170,7 +2170,7 @@ static int wait_for_space(struct drm_i915_gem_request 
*req, int bytes)
        if (ret)
                return ret;
 
-       ringbuf->space = space;
+       ring->space = space;
        return 0;
 }
 
@@ -2185,16 +2185,16 @@ static void ring_wrap(struct intel_ringbuffer *ringbuf)
 
 static int ring_prepare(struct drm_i915_gem_request *req, int bytes)
 {
-       struct intel_ringbuffer *ringbuf = req->ringbuf;
-       int remain_usable = ringbuf->effective_size - ringbuf->tail;
-       int remain_actual = ringbuf->size - ringbuf->tail;
+       struct intel_ringbuffer *ring = req->ring;
+       int remain_usable = ring->effective_size - ring->tail;
+       int remain_actual = ring->size - ring->tail;
        int ret, total_bytes, wait_bytes = 0;
        bool need_wrap = false;
 
-       if (ringbuf->reserved_in_use)
+       if (ring->reserved_in_use)
                total_bytes = bytes;
        else
-               total_bytes = bytes + ringbuf->reserved_size;
+               total_bytes = bytes + ring->reserved_size;
 
        if (unlikely(bytes > remain_usable)) {
                /*
@@ -2210,9 +2210,9 @@ static int ring_prepare(struct drm_i915_gem_request *req, 
int bytes)
                         * falls off the end. So only need to to wait for the
                         * reserved size after flushing out the remainder.
                         */
-                       wait_bytes = remain_actual + ringbuf->reserved_size;
+                       wait_bytes = remain_actual + ring->reserved_size;
                        need_wrap = true;
-               } else if (total_bytes > ringbuf->space) {
+               } else if (total_bytes > ring->space) {
                        /* No wrapping required, just waiting. */
                        wait_bytes = total_bytes;
                }
@@ -2224,7 +2224,7 @@ static int ring_prepare(struct drm_i915_gem_request *req, 
int bytes)
                        return ret;
 
                if (need_wrap)
-                       ring_wrap(ringbuf);
+                       ring_wrap(ring);
        }
 
        return 0;
@@ -2238,14 +2238,14 @@ int intel_ring_begin(struct drm_i915_gem_request *req, 
int num_dwords)
        if (ret)
                return ret;
 
-       req->ringbuf->space -= num_dwords * sizeof(uint32_t);
+       req->ring->space -= num_dwords * sizeof(uint32_t);
        return 0;
 }
 
 /* Align the ring tail to a cacheline boundary */
 int intel_ring_cacheline_align(struct drm_i915_gem_request *req)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        int num_dwords = (ring->tail & (CACHELINE_BYTES - 1)) / 
sizeof(uint32_t);
        int ret;
 
@@ -2320,7 +2320,7 @@ static void gen6_bsd_ring_write_tail(struct 
intel_engine_cs *ring,
 static int gen6_bsd_ring_flush(struct drm_i915_gem_request *req,
                               u32 invalidate, u32 flush)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        uint32_t cmd;
        int ret;
 
@@ -2366,7 +2366,7 @@ gen8_ring_dispatch_execbuffer(struct drm_i915_gem_request 
*req,
                              u64 offset, u32 len,
                              unsigned dispatch_flags)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        bool ppgtt = USES_PPGTT(req->i915) &&
                        !(dispatch_flags & I915_DISPATCH_SECURE);
        int ret;
@@ -2392,7 +2392,7 @@ hsw_ring_dispatch_execbuffer(struct drm_i915_gem_request 
*req,
                             u64 offset, u32 len,
                             unsigned dispatch_flags)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        int ret;
 
        ret = intel_ring_begin(req, 2);
@@ -2417,7 +2417,7 @@ gen6_ring_dispatch_execbuffer(struct drm_i915_gem_request 
*req,
                              u64 offset, u32 len,
                              unsigned dispatch_flags)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        int ret;
 
        ret = intel_ring_begin(req, 2);
@@ -2440,7 +2440,7 @@ gen6_ring_dispatch_execbuffer(struct drm_i915_gem_request 
*req,
 static int gen6_ring_flush(struct drm_i915_gem_request *req,
                           u32 invalidate, u32 flush)
 {
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        uint32_t cmd;
        int ret;
 
-- 
2.7.0.rc3

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