diff options
| author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2021-03-23 16:50:09 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-03-24 17:27:20 +0100 |
| commit | fe83ce1e0040b669c019e3c6d0b684e835282e97 (patch) | |
| tree | 26874058a05cc51c2f77b6acc44be6da229053cc /drivers/gpu/drm/i915/gt/intel_engine_cs.c | |
| parent | 83472bb06063effe59f50d2f0f175d27714f51fc (diff) | |
drm/i915: Handle ww locking in init_status_page
Try to pin to ggtt first, and use a full ww loop to handle
eviction correctly.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210323155059.628690-21-maarten.lankhorst@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_engine_cs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_engine_cs.c | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c index 36d737098d77..e29d2cce583b 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c @@ -619,6 +619,7 @@ static void cleanup_status_page(struct intel_engine_cs *engine) } static int pin_ggtt_status_page(struct intel_engine_cs *engine, + struct i915_gem_ww_ctx *ww, struct i915_vma *vma) { unsigned int flags; @@ -639,12 +640,13 @@ static int pin_ggtt_status_page(struct intel_engine_cs *engine, else flags = PIN_HIGH; - return i915_ggtt_pin(vma, NULL, 0, flags); + return i915_ggtt_pin(vma, ww, 0, flags); } static int init_status_page(struct intel_engine_cs *engine) { struct drm_i915_gem_object *obj; + struct i915_gem_ww_ctx ww; struct i915_vma *vma; void *vaddr; int ret; @@ -670,30 +672,39 @@ static int init_status_page(struct intel_engine_cs *engine) vma = i915_vma_instance(obj, &engine->gt->ggtt->vm, NULL); if (IS_ERR(vma)) { ret = PTR_ERR(vma); - goto err; + goto err_put; } + i915_gem_ww_ctx_init(&ww, true); +retry: + ret = i915_gem_object_lock(obj, &ww); + if (!ret && !HWS_NEEDS_PHYSICAL(engine->i915)) + ret = pin_ggtt_status_page(engine, &ww, vma); + if (ret) + goto err; + vaddr = i915_gem_object_pin_map(obj, I915_MAP_WB); if (IS_ERR(vaddr)) { ret = PTR_ERR(vaddr); - goto err; + goto err_unpin; } engine->status_page.addr = memset(vaddr, 0, PAGE_SIZE); engine->status_page.vma = vma; - if (!HWS_NEEDS_PHYSICAL(engine->i915)) { - ret = pin_ggtt_status_page(engine, vma); - if (ret) - goto err_unpin; - } - - return 0; - err_unpin: - i915_gem_object_unpin_map(obj); + if (ret) + i915_vma_unpin(vma); err: - i915_gem_object_put(obj); + if (ret == -EDEADLK) { + ret = i915_gem_ww_ctx_backoff(&ww); + if (!ret) + goto retry; + } + i915_gem_ww_ctx_fini(&ww); +err_put: + if (ret) + i915_gem_object_put(obj); return ret; } |