drm/i915: Fix inconsistent naming of i915_guc_client parameter

We usually use 'client' as identifier for the i915_guc_client.
For unknown reason, few functions were using 'gc' name.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
[joonas.lahtinen@linux.intel.com: Split two lines over 80]
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161215195321.63804-1-michal.wajdeczko@intel.com

diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
index 7fa4e74..a123203 100644 (file)
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -344,22 +344,23 @@ static void guc_ctx_desc_fini(struct intel_guc *guc,
 int i915_guc_wq_reserve(struct drm_i915_gem_request *request)
 {
        const size_t wqi_size = sizeof(struct guc_wq_item);
-       struct i915_guc_client *gc = request->i915->guc.execbuf_client;
-       struct guc_process_desc *desc = gc->vaddr + gc->proc_desc_offset;
+       struct i915_guc_client *client = request->i915->guc.execbuf_client;
+       struct guc_process_desc *desc = client->vaddr +
+                                       client->proc_desc_offset;
        u32 freespace;
        int ret;
 
-       spin_lock(&gc->wq_lock);
-       freespace = CIRC_SPACE(gc->wq_tail, desc->head, gc->wq_size);
-       freespace -= gc->wq_rsvd;
+       spin_lock(&client->wq_lock);
+       freespace = CIRC_SPACE(client->wq_tail, desc->head, client->wq_size);
+       freespace -= client->wq_rsvd;
        if (likely(freespace >= wqi_size)) {
-               gc->wq_rsvd += wqi_size;
+               client->wq_rsvd += wqi_size;
                ret = 0;
        } else {
-               gc->no_wq_space++;
+               client->no_wq_space++;
                ret = -EAGAIN;
        }
-       spin_unlock(&gc->wq_lock);
+       spin_unlock(&client->wq_lock);
 
        return ret;
 }
@@ -367,17 +368,17 @@ int i915_guc_wq_reserve(struct drm_i915_gem_request *request)
 void i915_guc_wq_unreserve(struct drm_i915_gem_request *request)
 {
        const size_t wqi_size = sizeof(struct guc_wq_item);
-       struct i915_guc_client *gc = request->i915->guc.execbuf_client;
+       struct i915_guc_client *client = request->i915->guc.execbuf_client;
 
-       GEM_BUG_ON(READ_ONCE(gc->wq_rsvd) < wqi_size);
+       GEM_BUG_ON(READ_ONCE(client->wq_rsvd) < wqi_size);
 
-       spin_lock(&gc->wq_lock);
-       gc->wq_rsvd -= wqi_size;
-       spin_unlock(&gc->wq_lock);
+       spin_lock(&client->wq_lock);
+       client->wq_rsvd -= wqi_size;
+       spin_unlock(&client->wq_lock);
 }
 
 /* Construct a Work Item and append it to the GuC's Work Queue */
-static void guc_wq_item_append(struct i915_guc_client *gc,
+static void guc_wq_item_append(struct i915_guc_client *client,
                               struct drm_i915_gem_request *rq)
 {
        /* wqi_len is in DWords, and does not include the one-word header */
@@ -388,10 +389,10 @@ static void guc_wq_item_append(struct i915_guc_client *gc,
        struct guc_wq_item *wqi;
        u32 freespace, tail, wq_off;
 
-       desc = gc->vaddr + gc->proc_desc_offset;
+       desc = client->vaddr + client->proc_desc_offset;
 
        /* Free space is guaranteed, see i915_guc_wq_reserve() above */
-       freespace = CIRC_SPACE(gc->wq_tail, desc->head, gc->wq_size);
+       freespace = CIRC_SPACE(client->wq_tail, desc->head, client->wq_size);
        GEM_BUG_ON(freespace < wqi_size);
 
        /* The GuC firmware wants the tail index in QWords, not bytes */
@@ -408,17 +409,17 @@ static void guc_wq_item_append(struct i915_guc_client *gc,
         * workqueue buffer dw by dw.
         */
        BUILD_BUG_ON(wqi_size != 16);
-       GEM_BUG_ON(gc->wq_rsvd < wqi_size);
+       GEM_BUG_ON(client->wq_rsvd < wqi_size);
 
        /* postincrement WQ tail for next time */
-       wq_off = gc->wq_tail;
+       wq_off = client->wq_tail;
        GEM_BUG_ON(wq_off & (wqi_size - 1));
-       gc->wq_tail += wqi_size;
-       gc->wq_tail &= gc->wq_size - 1;
-       gc->wq_rsvd -= wqi_size;
+       client->wq_tail += wqi_size;
+       client->wq_tail &= client->wq_size - 1;
+       client->wq_rsvd -= wqi_size;
 
        /* WQ starts from the page after doorbell / process_desc */
-       wqi = gc->vaddr + wq_off + GUC_DB_SIZE;
+       wqi = client->vaddr + wq_off + GUC_DB_SIZE;
 
        /* Now fill in the 4-word work queue item */
        wqi->header = WQ_TYPE_INORDER |
@@ -433,30 +434,30 @@ static void guc_wq_item_append(struct i915_guc_client *gc,
        wqi->fence_id = rq->global_seqno;
 }
 
-static int guc_ring_doorbell(struct i915_guc_client *gc)
+static int guc_ring_doorbell(struct i915_guc_client *client)
 {
        struct guc_process_desc *desc;
        union guc_doorbell_qw db_cmp, db_exc, db_ret;
        union guc_doorbell_qw *db;
        int attempt = 2, ret = -EAGAIN;
 
-       desc = gc->vaddr + gc->proc_desc_offset;
+       desc = client->vaddr + client->proc_desc_offset;
 
        /* Update the tail so it is visible to GuC */
-       desc->tail = gc->wq_tail;
+       desc->tail = client->wq_tail;
 
        /* current cookie */
        db_cmp.db_status = GUC_DOORBELL_ENABLED;
-       db_cmp.cookie = gc->doorbell_cookie;
+       db_cmp.cookie = client->doorbell_cookie;
 
        /* cookie to be updated */
        db_exc.db_status = GUC_DOORBELL_ENABLED;
-       db_exc.cookie = gc->doorbell_cookie + 1;
+       db_exc.cookie = client->doorbell_cookie + 1;
        if (db_exc.cookie == 0)
                db_exc.cookie = 1;
 
        /* pointer of current doorbell cacheline */
-       db = gc->vaddr + gc->doorbell_offset;
+       db = client->vaddr + client->doorbell_offset;
 
        while (attempt--) {
                /* lets ring the doorbell */
@@ -466,7 +467,7 @@ static int guc_ring_doorbell(struct i915_guc_client *gc)
                /* if the exchange was successfully executed */
                if (db_ret.value_qw == db_cmp.value_qw) {
                        /* db was successfully rung */
-                       gc->doorbell_cookie = db_exc.cookie;
+                       client->doorbell_cookie = db_exc.cookie;
                        ret = 0;
                        break;
                }
@@ -1411,14 +1412,15 @@ err:
        return -ENOMEM;
 }
 
-static void guc_reset_wq(struct i915_guc_client *gc)
+static void guc_reset_wq(struct i915_guc_client *client)
 {
-       struct guc_process_desc *desc = gc->vaddr + gc->proc_desc_offset;
+       struct guc_process_desc *desc = client->vaddr +
+                                       client->proc_desc_offset;
 
        desc->head = 0;
        desc->tail = 0;
 
-       gc->wq_tail = 0;
+       client->wq_tail = 0;
 }
 
 int i915_guc_submission_enable(struct drm_i915_private *dev_priv)