Commit 952f89f0 authored by Chris Wilson's avatar Chris Wilson

drm/i915/gvt: Wean off struct_mutex

Use the local vgpu_lock while preparing workloads to avoid taking the
obsolete i915->drm.struct_mutex
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: default avatarZhenyu Wang <zhenyuw@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191016183902.13614-1-chris@chris-wilson.co.uk
parent 0dc3c562
......@@ -415,10 +415,9 @@ int intel_gvt_scan_and_shadow_workload(struct intel_vgpu_workload *workload)
{
struct intel_vgpu *vgpu = workload->vgpu;
struct intel_vgpu_submission *s = &vgpu->submission;
struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
int ret;
lockdep_assert_held(&dev_priv->drm.struct_mutex);
lockdep_assert_held(&vgpu->vgpu_lock);
if (workload->shadow)
return 0;
......@@ -580,8 +579,6 @@ static void update_vreg_in_ctx(struct intel_vgpu_workload *workload)
static void release_shadow_batch_buffer(struct intel_vgpu_workload *workload)
{
struct intel_vgpu *vgpu = workload->vgpu;
struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
struct intel_vgpu_shadow_bb *bb, *pos;
if (list_empty(&workload->shadow_bb))
......@@ -590,8 +587,6 @@ static void release_shadow_batch_buffer(struct intel_vgpu_workload *workload)
bb = list_first_entry(&workload->shadow_bb,
struct intel_vgpu_shadow_bb, list);
mutex_lock(&dev_priv->drm.struct_mutex);
list_for_each_entry_safe(bb, pos, &workload->shadow_bb, list) {
if (bb->obj) {
if (bb->accessing)
......@@ -609,8 +604,6 @@ static void release_shadow_batch_buffer(struct intel_vgpu_workload *workload)
list_del(&bb->list);
kfree(bb);
}
mutex_unlock(&dev_priv->drm.struct_mutex);
}
static int prepare_workload(struct intel_vgpu_workload *workload)
......@@ -685,7 +678,6 @@ static int prepare_workload(struct intel_vgpu_workload *workload)
static int dispatch_workload(struct intel_vgpu_workload *workload)
{
struct intel_vgpu *vgpu = workload->vgpu;
struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
struct i915_request *rq;
int ring_id = workload->ring_id;
int ret;
......@@ -694,7 +686,6 @@ static int dispatch_workload(struct intel_vgpu_workload *workload)
ring_id, workload);
mutex_lock(&vgpu->vgpu_lock);
mutex_lock(&dev_priv->drm.struct_mutex);
ret = intel_gvt_workload_req_alloc(workload);
if (ret)
......@@ -729,7 +720,6 @@ static int dispatch_workload(struct intel_vgpu_workload *workload)
err_req:
if (ret)
workload->status = ret;
mutex_unlock(&dev_priv->drm.struct_mutex);
mutex_unlock(&vgpu->vgpu_lock);
return ret;
}
......@@ -1594,9 +1584,9 @@ intel_vgpu_create_workload(struct intel_vgpu *vgpu, int ring_id,
*/
if (list_empty(workload_q_head(vgpu, ring_id))) {
intel_runtime_pm_get(&dev_priv->runtime_pm);
mutex_lock(&dev_priv->drm.struct_mutex);
mutex_lock(&vgpu->vgpu_lock);
ret = intel_gvt_scan_and_shadow_workload(workload);
mutex_unlock(&dev_priv->drm.struct_mutex);
mutex_unlock(&vgpu->vgpu_lock);
intel_runtime_pm_put_unchecked(&dev_priv->runtime_pm);
}
......
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