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.

@@
struct drm_i915_gem_request *r;
@@
- r->ringbuf
+ r->ring

Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahti...@linux.intel.com>
Link: 
http://patchwork.freedesktop.org/patch/msgid/1469432687-22756-12-git-send-email-ch...@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_gem_context.c    |  4 +-
 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    | 16 +++---
 drivers/gpu/drm/i915/i915_gem_request.h    |  2 +-
 drivers/gpu/drm/i915/i915_gpu_error.c      | 19 +++---
 drivers/gpu/drm/i915/intel_display.c       | 10 ++--
 drivers/gpu/drm/i915/intel_lrc.c           | 57 +++++++++---------
 drivers/gpu/drm/i915/intel_mocs.c          | 36 ++++++------
 drivers/gpu/drm/i915/intel_overlay.c       |  8 +--
 drivers/gpu/drm/i915/intel_ringbuffer.c    | 92 +++++++++++++++---------------
 11 files changed, 125 insertions(+), 129 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_context.c 
b/drivers/gpu/drm/i915/i915_gem_context.c
index a0e24eb5e167..f7f4a8c40afe 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -552,7 +552,7 @@ static inline int
 mi_set_context(struct drm_i915_gem_request *req, u32 hw_flags)
 {
        struct drm_i915_private *dev_priv = req->i915;
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        struct intel_engine_cs *engine = req->engine;
        u32 flags = hw_flags | MI_MM_SPACE_GTT;
        const int num_rings =
@@ -655,7 +655,7 @@ mi_set_context(struct drm_i915_gem_request *req, u32 
hw_flags)
 static int remap_l3(struct drm_i915_gem_request *req, int slice)
 {
        u32 *remap_info = req->i915->l3_parity.remap_info[slice];
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        int i, ret;
 
        if (!remap_info)
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c 
b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 2f9f0daa1bc2..42389de4752a 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -1173,7 +1173,7 @@ 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) {
@@ -1303,7 +1303,7 @@ i915_gem_ringbuffer_submission(struct 
i915_execbuffer_params *params,
 
        if (params->engine->id == RCS &&
            instp_mode != dev_priv->relative_constants_mode) {
-               struct intel_ringbuffer *ring = params->request->ringbuf;
+               struct intel_ringbuffer *ring = params->request->ring;
 
                ret = intel_ring_begin(params->request, 4);
                if (ret)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c 
b/drivers/gpu/drm/i915/i915_gem_gtt.c
index b38a5311f996..46cae2a92bda 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -669,7 +669,7 @@ 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;
        struct intel_engine_cs *engine = req->engine;
        int ret;
 
@@ -1661,7 +1661,7 @@ 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;
        struct intel_engine_cs *engine = req->engine;
        int ret;
 
@@ -1688,7 +1688,7 @@ static int hsw_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;
        struct intel_engine_cs *engine = req->engine;
        int ret;
 
diff --git a/drivers/gpu/drm/i915/i915_gem_request.c 
b/drivers/gpu/drm/i915/i915_gem_request.c
index 49396b895a36..d2133c41be13 100644
--- a/drivers/gpu/drm/i915/i915_gem_request.c
+++ b/drivers/gpu/drm/i915/i915_gem_request.c
@@ -170,7 +170,7 @@ 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_remove_from_client(request);
 
@@ -423,7 +423,7 @@ void __i915_add_request(struct drm_i915_gem_request 
*request,
                        bool flush_caches)
 {
        struct intel_engine_cs *engine;
-       struct intel_ringbuffer *ringbuf;
+       struct intel_ringbuffer *ring;
        u32 request_start;
        u32 reserved_tail;
        int ret;
@@ -432,14 +432,14 @@ void __i915_add_request(struct drm_i915_gem_request 
*request,
                return;
 
        engine = request->engine;
-       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.
         */
-       request_start = intel_ring_get_tail(ringbuf);
+       request_start = intel_ring_get_tail(ring);
        reserved_tail = request->reserved_space;
        request->reserved_space = 0;
 
@@ -486,21 +486,21 @@ 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 = engine->emit_request(request);
        } else {
                ret = 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);
        /* Sanity check that the reserved size was large enough. */
-       ret = intel_ring_get_tail(ringbuf) - request_start;
+       ret = intel_ring_get_tail(ring) - request_start;
        if (ret < 0)
-               ret += ringbuf->size;
+               ret += ring->size;
        WARN_ONCE(ret > reserved_tail,
                  "Not enough space reserved (%d bytes) "
                  "for adding the request (%d bytes)\n",
diff --git a/drivers/gpu/drm/i915/i915_gem_request.h 
b/drivers/gpu/drm/i915/i915_gem_request.h
index e06e81f459df..68868d825d9d 100644
--- a/drivers/gpu/drm/i915/i915_gem_request.h
+++ b/drivers/gpu/drm/i915/i915_gem_request.h
@@ -61,7 +61,7 @@ struct drm_i915_gem_request {
         */
        struct i915_gem_context *ctx;
        struct intel_engine_cs *engine;
-       struct intel_ringbuffer *ringbuf;
+       struct intel_ringbuffer *ring;
        struct intel_signal_node signaling;
 
        /** GEM sequence number associated with the previous request,
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c 
b/drivers/gpu/drm/i915/i915_gpu_error.c
index bc4a3ebc2662..d490a43461ae 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1097,7 +1097,7 @@ static void i915_gem_record_rings(struct drm_i915_private 
*dev_priv,
                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->ppgtt ?
                                &request->ctx->ppgtt->base : &ggtt->base;
@@ -1114,7 +1114,7 @@ static void i915_gem_record_rings(struct drm_i915_private 
*dev_priv,
                        if (HAS_BROKEN_CS_TLB(dev_priv))
                                ee->wa_batchbuffer =
                                        i915_error_ggtt_object_create(dev_priv,
-                                                            
engine->scratch.obj);
+                                                                     
engine->scratch.obj);
 
                        if (request->pid) {
                                struct task_struct *task;
@@ -1131,23 +1131,20 @@ static void i915_gem_record_rings(struct 
drm_i915_private *dev_priv,
                        error->simulated |=
                                request->ctx->flags & CONTEXT_NO_ERROR_CAPTURE;
 
-                       rb = request->ringbuf;
-                       ee->cpu_ring_head = rb->head;
-                       ee->cpu_ring_tail = rb->tail;
+                       ring = request->ring;
+                       ee->cpu_ring_head = ring->head;
+                       ee->cpu_ring_tail = ring->tail;
                        ee->ringbuffer =
                                i915_error_ggtt_object_create(dev_priv,
-                                                             rb->obj);
+                                                             ring->obj);
                }
 
                ee->hws_page =
                        i915_error_ggtt_object_create(dev_priv,
                                                      engine->status_page.obj);
 
-               if (engine->wa_ctx.obj) {
-                       ee->wa_ctx =
-                               i915_error_ggtt_object_create(dev_priv,
-                                                             
engine->wa_ctx.obj);
-               }
+               ee->wa_ctx = i915_error_ggtt_object_create(dev_priv,
+                                                          engine->wa_ctx.obj);
 
                i915_gem_record_active_context(engine, error, ee);
 
diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index 1d326535d07b..8c7da2f3529e 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -11115,7 +11115,7 @@ 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;
@@ -11149,7 +11149,7 @@ 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;
@@ -11180,7 +11180,7 @@ 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 = to_i915(dev);
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
        uint32_t pf, pipesrc;
@@ -11218,7 +11218,7 @@ 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 = to_i915(dev);
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
        uint32_t pf, pipesrc;
@@ -11253,7 +11253,7 @@ 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 883af4601f61..ce7dcf85ea4b 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -714,7 +714,7 @@ int intel_logical_ring_alloc_request_extras(struct 
drm_i915_gem_request *request
                        return ret;
        }
 
-       request->ringbuf = ce->ringbuf;
+       request->ring = ce->ringbuf;
 
        if (i915.enable_guc_submission) {
                /*
@@ -770,11 +770,11 @@ err_unpin:
 static int
 intel_logical_ring_advance_and_submit(struct drm_i915_gem_request *request)
 {
-       struct intel_ringbuffer *ringbuf = request->ringbuf;
+       struct intel_ringbuffer *ring = request->ring;
        struct intel_engine_cs *engine = request->engine;
 
-       intel_ring_advance(ringbuf);
-       request->tail = ringbuf->tail;
+       intel_ring_advance(ring);
+       request->tail = ring->tail;
 
        /*
         * Here we add two extra NOOPs as padding to avoid
@@ -782,9 +782,9 @@ intel_logical_ring_advance_and_submit(struct 
drm_i915_gem_request *request)
         *
         * Caller must reserve WA_TAIL_DWORDS for us!
         */
-       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);
 
        /* We keep the previous context alive until we retire the following
         * request. This ensures that any the context object is still pinned
@@ -821,7 +821,7 @@ int intel_execlists_submission(struct 
i915_execbuffer_params *params,
        struct drm_device       *dev = params->dev;
        struct intel_engine_cs *engine = params->engine;
        struct drm_i915_private *dev_priv = to_i915(dev);
-       struct intel_ringbuffer *ringbuf = 
params->ctx->engine[engine->id].ringbuf;
+       struct intel_ringbuffer *ring = params->request->ring;
        u64 exec_start;
        int instp_mode;
        u32 instp_mask;
@@ -833,7 +833,7 @@ 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 && engine != &dev_priv->engine[RCS]) {
+               if (instp_mode != 0 && engine->id != RCS) {
                        DRM_DEBUG("non-0 rel constants mode on non-RCS\n");
                        return -EINVAL;
                }
@@ -862,17 +862,17 @@ int intel_execlists_submission(struct 
i915_execbuffer_params *params,
        if (ret)
                return ret;
 
-       if (engine == &dev_priv->engine[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;
        }
@@ -1030,7 +1030,7 @@ 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 i915_workarounds *w = &req->i915->workarounds;
 
        if (w->count == 0)
@@ -1045,14 +1045,14 @@ 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);
@@ -1555,7 +1555,7 @@ static int gen9_init_render_ring(struct intel_engine_cs 
*engine)
 static int intel_logical_ring_emit_pdps(struct drm_i915_gem_request *req)
 {
        struct i915_hw_ppgtt *ppgtt = req->ctx->ppgtt;
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        struct intel_engine_cs *engine = req->engine;
        const int num_lri_cmds = GEN8_LEGACY_PDPES * 2;
        int i, ret;
@@ -1583,7 +1583,7 @@ 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 *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        bool ppgtt = !(dispatch_flags & I915_DISPATCH_SECURE);
        int ret;
 
@@ -1640,8 +1640,7 @@ static int gen8_emit_flush(struct drm_i915_gem_request 
*request,
                           u32 invalidate_domains,
                           u32 unused)
 {
-       struct intel_ringbuffer *ring = request->ringbuf;
-       struct intel_engine_cs *engine = ring->engine;
+       struct intel_ringbuffer *ring = request->ring;
        uint32_t cmd;
        int ret;
 
@@ -1660,7 +1659,7 @@ static int gen8_emit_flush(struct drm_i915_gem_request 
*request,
 
        if (invalidate_domains & I915_GEM_GPU_DOMAINS) {
                cmd |= MI_INVALIDATE_TLB;
-               if (engine->id == VCS)
+               if (request->engine->id == VCS)
                        cmd |= MI_INVALIDATE_BSD;
        }
 
@@ -1679,7 +1678,7 @@ static int gen8_emit_flush_render(struct 
drm_i915_gem_request *request,
                                  u32 invalidate_domains,
                                  u32 flush_domains)
 {
-       struct intel_ringbuffer *ring = request->ringbuf;
+       struct intel_ringbuffer *ring = request->ring;
        struct intel_engine_cs *engine = request->engine;
        u32 scratch_addr = engine->scratch.gtt_offset + 2 * CACHELINE_BYTES;
        bool vf_flush_wa = false, dc_flush_wa = false;
@@ -1793,7 +1792,7 @@ static void bxt_a_seqno_barrier(struct intel_engine_cs 
*engine)
 
 static int gen8_emit_request(struct drm_i915_gem_request *request)
 {
-       struct intel_ringbuffer *ring = request->ringbuf;
+       struct intel_ringbuffer *ring = request->ring;
        int ret;
 
        ret = intel_ring_begin(request, 6 + WA_TAIL_DWORDS);
@@ -1816,7 +1815,7 @@ static int gen8_emit_request(struct drm_i915_gem_request 
*request)
 
 static int gen8_emit_request_render(struct drm_i915_gem_request *request)
 {
-       struct intel_ringbuffer *ring = request->ringbuf;
+       struct intel_ringbuffer *ring = request->ring;
        int ret;
 
        ret = intel_ring_begin(request, 8 + WA_TAIL_DWORDS);
diff --git a/drivers/gpu/drm/i915/intel_mocs.c 
b/drivers/gpu/drm/i915/intel_mocs.c
index 3059c52030b4..8534ec3648bd 100644
--- a/drivers/gpu/drm/i915/intel_mocs.c
+++ b/drivers/gpu/drm/i915/intel_mocs.c
@@ -276,7 +276,7 @@ int intel_mocs_init_engine(struct intel_engine_cs *engine)
 static int emit_mocs_control_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;
        enum intel_engine_id engine = req->engine->id;
        unsigned int index;
        int ret;
@@ -288,11 +288,11 @@ 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(engine, index));
-               intel_ring_emit(ringbuf, table->table[index].control_value);
+               intel_ring_emit_reg(ring, mocs_register(engine, index));
+               intel_ring_emit(ring, table->table[index].control_value);
        }
 
        /*
@@ -304,12 +304,12 @@ 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(engine, index));
-               intel_ring_emit(ringbuf, table->table[0].control_value);
+               intel_ring_emit_reg(ring, mocs_register(engine, 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;
 }
@@ -336,7 +336,7 @@ static inline u32 l3cc_combine(const struct 
drm_i915_mocs_table *table,
 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 i;
        int ret;
 
@@ -347,18 +347,18 @@ 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; i < table->size/2; i++) {
-               intel_ring_emit_reg(ringbuf, GEN9_LNCFCMOCS(i));
-               intel_ring_emit(ringbuf, l3cc_combine(table, 2*i, 2*i+1));
+               intel_ring_emit_reg(ring, GEN9_LNCFCMOCS(i));
+               intel_ring_emit(ring, l3cc_combine(table, 2*i, 2*i+1));
        }
 
        if (table->size & 0x01) {
                /* Odd table size - 1 left over */
-               intel_ring_emit_reg(ringbuf, GEN9_LNCFCMOCS(i));
-               intel_ring_emit(ringbuf, l3cc_combine(table, 2*i, 0));
+               intel_ring_emit_reg(ring, GEN9_LNCFCMOCS(i));
+               intel_ring_emit(ring, l3cc_combine(table, 2*i, 0));
                i++;
        }
 
@@ -368,12 +368,12 @@ 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, l3cc_combine(table, 0, 0));
+               intel_ring_emit_reg(ring, GEN9_LNCFCMOCS(i));
+               intel_ring_emit(ring, l3cc_combine(table, 0, 0));
        }
 
-       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 ec63b64fb202..e750c0e3a267 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -253,7 +253,7 @@ static int intel_overlay_on(struct intel_overlay *overlay)
 
        overlay->active = true;
 
-       ring = req->ringbuf;
+       ring = req->ring;
        intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_ON);
        intel_ring_emit(ring, overlay->flip_addr | OFC_UPDATE);
        intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP);
@@ -295,7 +295,7 @@ static int intel_overlay_continue(struct intel_overlay 
*overlay,
                return ret;
        }
 
-       ring = req->ringbuf;
+       ring = req->ring;
        intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE);
        intel_ring_emit(ring, flip_addr);
        intel_ring_advance(ring);
@@ -362,7 +362,7 @@ static int intel_overlay_off(struct intel_overlay *overlay)
                return ret;
        }
 
-       ring = req->ringbuf;
+       ring = req->ring;
        /* wait for overlay to go idle */
        intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE);
        intel_ring_emit(ring, flip_addr);
@@ -438,7 +438,7 @@ static int intel_overlay_release_old_vid(struct 
intel_overlay *overlay)
                        return ret;
                }
 
-               ring = req->ringbuf;
+               ring = req->ring;
                intel_ring_emit(ring,
                                MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP);
                intel_ring_emit(ring, MI_NOOP);
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c 
b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 12670068f081..9d70d2f92de7 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -70,7 +70,7 @@ 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;
 
@@ -97,7 +97,7 @@ 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;
 
@@ -187,7 +187,7 @@ 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;
@@ -224,7 +224,7 @@ 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 scratch_addr =
                req->engine->scratch.gtt_offset + 2 * CACHELINE_BYTES;
        u32 flags = 0;
@@ -277,7 +277,7 @@ 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);
@@ -299,7 +299,7 @@ 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 scratch_addr =
                req->engine->scratch.gtt_offset + 2 * CACHELINE_BYTES;
        u32 flags = 0;
@@ -364,7 +364,7 @@ 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);
@@ -680,7 +680,7 @@ 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 i915_workarounds *w = &req->i915->workarounds;
        int ret, i;
 
@@ -1338,7 +1338,7 @@ 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;
        enum intel_engine_id id;
@@ -1380,7 +1380,7 @@ 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;
        enum intel_engine_id id;
@@ -1419,7 +1419,7 @@ 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;
        enum intel_engine_id id;
@@ -1464,7 +1464,7 @@ static int
 gen6_add_request(struct drm_i915_gem_request *req)
 {
        struct intel_engine_cs *engine = req->engine;
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        int ret;
 
        if (engine->semaphore.signal)
@@ -1488,7 +1488,7 @@ static int
 gen8_render_add_request(struct drm_i915_gem_request *req)
 {
        struct intel_engine_cs *engine = req->engine;
-       struct intel_ringbuffer *ring = req->ringbuf;
+       struct intel_ringbuffer *ring = req->ring;
        int ret;
 
        if (engine->semaphore.signal)
@@ -1533,7 +1533,7 @@ 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;
        u64 offset = GEN8_WAIT_OFFSET(waiter_req->engine, signaller->id);
        struct i915_hw_ppgtt *ppgtt;
@@ -1567,7 +1567,7 @@ 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;
@@ -1701,7 +1701,7 @@ 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);
@@ -1717,7 +1717,7 @@ 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);
@@ -1795,7 +1795,7 @@ 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);
@@ -1822,7 +1822,7 @@ 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;
 
@@ -1884,7 +1884,7 @@ 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);
@@ -2312,7 +2312,7 @@ int intel_ring_alloc_request_extras(struct 
drm_i915_gem_request *request)
         */
        request->reserved_space += LEGACY_REQUEST_SIZE;
 
-       request->ringbuf = request->engine->buffer;
+       request->ring = request->engine->buffer;
 
        ret = intel_ring_begin(request, 0);
        if (ret)
@@ -2324,12 +2324,12 @@ int intel_ring_alloc_request_extras(struct 
drm_i915_gem_request *request)
 
 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;
 
-       intel_ring_update_space(ringbuf);
-       if (ringbuf->space >= bytes)
+       intel_ring_update_space(ring);
+       if (ring->space >= bytes)
                return 0;
 
        /*
@@ -2351,12 +2351,12 @@ 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;
        }
@@ -2369,9 +2369,9 @@ static int wait_for_space(struct drm_i915_gem_request 
*req, int bytes)
 
 int intel_ring_begin(struct drm_i915_gem_request *req, int num_dwords)
 {
-       struct intel_ringbuffer *ringbuf = req->ringbuf;
-       int remain_actual = ringbuf->size - ringbuf->tail;
-       int remain_usable = ringbuf->effective_size - ringbuf->tail;
+       struct intel_ringbuffer *ring = req->ring;
+       int remain_actual = ring->size - ring->tail;
+       int remain_usable = ring->effective_size - ring->tail;
        int bytes = num_dwords * sizeof(u32);
        int total_bytes, wait_bytes;
        bool need_wrap = false;
@@ -2398,35 +2398,35 @@ int intel_ring_begin(struct drm_i915_gem_request *req, 
int num_dwords)
                wait_bytes = total_bytes;
        }
 
-       if (wait_bytes > ringbuf->space) {
+       if (wait_bytes > ring->space) {
                int ret = wait_for_space(req, wait_bytes);
                if (unlikely(ret))
                        return ret;
 
-               intel_ring_update_space(ringbuf);
-               if (unlikely(ringbuf->space < wait_bytes))
+               intel_ring_update_space(ring);
+               if (unlikely(ring->space < wait_bytes))
                        return -EAGAIN;
        }
 
        if (unlikely(need_wrap)) {
-               GEM_BUG_ON(remain_actual > ringbuf->space);
-               GEM_BUG_ON(ringbuf->tail + remain_actual > ringbuf->size);
+               GEM_BUG_ON(remain_actual > ring->space);
+               GEM_BUG_ON(ring->tail + remain_actual > ring->size);
 
                /* Fill the tail with MI_NOOP */
-               memset(ringbuf->vaddr + ringbuf->tail, 0, remain_actual);
-               ringbuf->tail = 0;
-               ringbuf->space -= remain_actual;
+               memset(ring->vaddr + ring->tail, 0, remain_actual);
+               ring->tail = 0;
+               ring->space -= remain_actual;
        }
 
-       ringbuf->space -= bytes;
-       GEM_BUG_ON(ringbuf->space < 0);
+       ring->space -= bytes;
+       GEM_BUG_ON(ring->space < 0);
        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;
@@ -2533,7 +2533,7 @@ static void gen6_bsd_ring_write_tail(struct 
intel_engine_cs *engine,
 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;
 
@@ -2579,7 +2579,7 @@ 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;
@@ -2605,7 +2605,7 @@ 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);
@@ -2630,7 +2630,7 @@ 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);
@@ -2653,7 +2653,7 @@ 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;
 
-- 
2.8.1

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