drm/i915/gvt: Rename reserved ring buffer

"reserved" means reserve something from somewhere. Actually they are
buffers used by command scanner. Rename it to ring_scan_buffer.

v2:

- Remove the usage of an extra variable. (Zhenyu)

Fixes: 0a53bc07f044 ("drm/i915/gvt: Separate cmd scan from request allocation")
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>

diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c
index 9405a21..a2b970f 100644 (file)
--- a/drivers/gpu/drm/i915/gvt/cmd_parser.c
+++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c
@@ -2619,21 +2619,21 @@ static int shadow_workload_ring_buffer(struct intel_vgpu_workload *workload)
        gma_tail = workload->rb_start + workload->rb_tail;
        gma_top = workload->rb_start + guest_rb_size;
 
-       if (workload->rb_len > vgpu->reserve_ring_buffer_size[ring_id]) {
-               void *va, *p;
+       if (workload->rb_len > vgpu->ring_scan_buffer_size[ring_id]) {
+               void *p;
 
                /* realloc the new ring buffer if needed */
-               va = vgpu->reserve_ring_buffer_va[ring_id];
-               p = krealloc(va, workload->rb_len, GFP_KERNEL);
+               p = krealloc(vgpu->ring_scan_buffer[ring_id], workload->rb_len,
+                               GFP_KERNEL);
                if (!p) {
-                       gvt_vgpu_err("fail to alloc reserve ring buffer\n");
+                       gvt_vgpu_err("fail to re-alloc ring scan buffer\n");
                        return -ENOMEM;
                }
-               vgpu->reserve_ring_buffer_va[ring_id] = p;
-               vgpu->reserve_ring_buffer_size[ring_id] = workload->rb_len;
+               vgpu->ring_scan_buffer[ring_id] = p;
+               vgpu->ring_scan_buffer_size[ring_id] = workload->rb_len;
        }
 
-       shadow_ring_buffer_va = vgpu->reserve_ring_buffer_va[ring_id];
+       shadow_ring_buffer_va = vgpu->ring_scan_buffer[ring_id];
 
        /* get shadow ring buffer va */
        workload->shadow_ring_buffer_va = shadow_ring_buffer_va;

diff --git a/drivers/gpu/drm/i915/gvt/execlist.c b/drivers/gpu/drm/i915/gvt/execlist.c
index f118454..5e4f35f 100644 (file)
--- a/drivers/gpu/drm/i915/gvt/execlist.c
+++ b/drivers/gpu/drm/i915/gvt/execlist.c
@@ -864,9 +864,9 @@ void intel_vgpu_clean_execlist(struct intel_vgpu *vgpu)
        clean_workloads(vgpu, ALL_ENGINES);
 
        for_each_engine(engine, vgpu->gvt->dev_priv, i) {
-               kfree(vgpu->reserve_ring_buffer_va[i]);
-               vgpu->reserve_ring_buffer_va[i] = NULL;
-               vgpu->reserve_ring_buffer_size[i] = 0;
+               kfree(vgpu->ring_scan_buffer[i]);
+               vgpu->ring_scan_buffer[i] = NULL;
+               vgpu->ring_scan_buffer_size[i] = 0;
        }
 }
 
@@ -881,21 +881,21 @@ int intel_vgpu_init_execlist(struct intel_vgpu *vgpu)
 
        /* each ring has a shadow ring buffer until vgpu destroyed */
        for_each_engine(engine, vgpu->gvt->dev_priv, i) {
-               vgpu->reserve_ring_buffer_va[i] =
+               vgpu->ring_scan_buffer[i] =
                        kmalloc(RESERVE_RING_BUFFER_SIZE, GFP_KERNEL);
-               if (!vgpu->reserve_ring_buffer_va[i]) {
-                       gvt_vgpu_err("fail to alloc reserve ring buffer\n");
+               if (!vgpu->ring_scan_buffer[i]) {
+                       gvt_vgpu_err("fail to alloc ring scan buffer\n");
                        goto out;
                }
-               vgpu->reserve_ring_buffer_size[i] = RESERVE_RING_BUFFER_SIZE;
+               vgpu->ring_scan_buffer_size[i] = RESERVE_RING_BUFFER_SIZE;
        }
        return 0;
 out:
        for_each_engine(engine, vgpu->gvt->dev_priv, i) {
-               if (vgpu->reserve_ring_buffer_size[i]) {
-                       kfree(vgpu->reserve_ring_buffer_va[i]);
-                       vgpu->reserve_ring_buffer_va[i] = NULL;
-                       vgpu->reserve_ring_buffer_size[i] = 0;
+               if (vgpu->ring_scan_buffer_size[i]) {
+                       kfree(vgpu->ring_scan_buffer[i]);
+                       vgpu->ring_scan_buffer[i] = NULL;
+                       vgpu->ring_scan_buffer_size[i] = 0;
                }
        }
        return -ENOMEM;

diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index 93ff530..5b723fa 100644 (file)
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -172,9 +172,9 @@ struct intel_vgpu {
        struct intel_vgpu_opregion opregion;
        struct intel_vgpu_display display;
        struct intel_vgpu_submission submission;
-       /* 1/2K for each reserve ring buffer */
-       void *reserve_ring_buffer_va[I915_NUM_ENGINES];
-       int reserve_ring_buffer_size[I915_NUM_ENGINES];
+       /* 1/2K for each engine */
+       void *ring_scan_buffer[I915_NUM_ENGINES];
+       int ring_scan_buffer_size[I915_NUM_ENGINES];
 
 
 #if IS_ENABLED(CONFIG_DRM_I915_GVT_KVMGT)