drm/msm: introduce msm_fence_context
Better encapsulate the per-timeline stuff into fence-context. For now
there is just a single fence-context, but eventually we'll also have one
per-CRTC to enable fully explicit fencing.
Signed-off-by: Rob Clark <robdclark@gmail.com>
diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index 80efe56..8f0b295 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -313,7 +313,7 @@
if (fence != gpu->hangcheck_fence) {
/* some progress has been made.. ya! */
gpu->hangcheck_fence = fence;
- } else if (fence < gpu->submitted_fence) {
+ } else if (fence < gpu->fctx->last_fence) {
/* no progress and not done.. hung! */
gpu->hangcheck_fence = fence;
dev_err(dev->dev, "%s: hangcheck detected gpu lockup!\n",
@@ -321,12 +321,12 @@
dev_err(dev->dev, "%s: completed fence: %u\n",
gpu->name, fence);
dev_err(dev->dev, "%s: submitted fence: %u\n",
- gpu->name, gpu->submitted_fence);
+ gpu->name, gpu->fctx->last_fence);
queue_work(priv->wq, &gpu->recover_work);
}
/* if still more pending work, reset the hangcheck timer: */
- if (gpu->submitted_fence > gpu->hangcheck_fence)
+ if (gpu->fctx->last_fence > gpu->hangcheck_fence)
hangcheck_timer_reset(gpu);
/* workaround for missing irq: */
@@ -474,7 +474,7 @@
struct drm_device *dev = gpu->dev;
uint32_t fence = gpu->funcs->last_fence(gpu);
- msm_update_fence(gpu->dev, fence);
+ msm_update_fence(gpu->fctx, fence);
mutex_lock(&dev->struct_mutex);
retire_submits(gpu, fence);
@@ -502,9 +502,7 @@
WARN_ON(!mutex_is_locked(&dev->struct_mutex));
- submit->fence = ++priv->next_fence;
-
- gpu->submitted_fence = submit->fence;
+ submit->fence = ++gpu->fctx->last_fence;
inactive_cancel(gpu);
@@ -512,8 +510,6 @@
msm_rd_dump_submit(submit);
- gpu->submitted_fence = submit->fence;
-
update_sw_cntrs(gpu);
for (i = 0; i < submit->nr_bos; i++) {
@@ -574,6 +570,12 @@
gpu->funcs = funcs;
gpu->name = name;
gpu->inactive = true;
+ gpu->fctx = msm_fence_context_alloc(drm, name);
+ if (IS_ERR(gpu->fctx)) {
+ ret = PTR_ERR(gpu->fctx);
+ gpu->fctx = NULL;
+ goto fail;
+ }
INIT_LIST_HEAD(&gpu->active_list);
INIT_WORK(&gpu->retire_work, retire_worker);
@@ -694,4 +696,7 @@
if (gpu->mmu)
gpu->mmu->funcs->destroy(gpu->mmu);
+
+ if (gpu->fctx)
+ msm_fence_context_free(gpu->fctx);
}