diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 142 |
1 files changed, 116 insertions, 26 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c index 4d7da07442f2..60ee60f7bb09 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c @@ -29,6 +29,7 @@ #include "i915_gem_ioctls.h" #include "i915_trace.h" #include "i915_user_extensions.h" +#include "i915_vma_snapshot.h" struct eb_vma { struct i915_vma *vma; @@ -307,11 +308,15 @@ struct i915_execbuffer { struct eb_fence *fences; unsigned long num_fences; +#if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR) + struct i915_capture_list *capture_lists[MAX_ENGINE_INSTANCE + 1]; +#endif }; static int eb_parse(struct i915_execbuffer *eb); static int eb_pin_engine(struct i915_execbuffer *eb, bool throttle); static void eb_unpin_engine(struct i915_execbuffer *eb); +static void eb_capture_release(struct i915_execbuffer *eb); static inline bool eb_use_cmdparser(const struct i915_execbuffer *eb) { @@ -990,7 +995,7 @@ static int eb_validate_vmas(struct i915_execbuffer *eb) } if (!(ev->flags & EXEC_OBJECT_WRITE)) { - err = dma_resv_reserve_shared(vma->resv, 1); + err = dma_resv_reserve_shared(vma->obj->base.resv, 1); if (err) return err; } @@ -1043,6 +1048,7 @@ static void eb_release_vmas(struct i915_execbuffer *eb, bool final) i915_vma_put(vma); } + eb_capture_release(eb); eb_unpin_engine(eb); } @@ -1880,36 +1886,113 @@ eb_find_first_request_added(struct i915_execbuffer *eb) return NULL; } -static int eb_move_to_gpu(struct i915_execbuffer *eb) +#if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR) + +/* Stage with GFP_KERNEL allocations before we enter the signaling critical path */ +static void eb_capture_stage(struct i915_execbuffer *eb) { const unsigned int count = eb->buffer_count; - unsigned int i = count; - int err = 0, j; + unsigned int i = count, j; + struct i915_vma_snapshot *vsnap; while (i--) { struct eb_vma *ev = &eb->vma[i]; struct i915_vma *vma = ev->vma; unsigned int flags = ev->flags; - struct drm_i915_gem_object *obj = vma->obj; - assert_vma_held(vma); + if (!(flags & EXEC_OBJECT_CAPTURE)) + continue; - if (flags & EXEC_OBJECT_CAPTURE) { + vsnap = i915_vma_snapshot_alloc(GFP_KERNEL); + if (!vsnap) + continue; + + i915_vma_snapshot_init(vsnap, vma, "user"); + for_each_batch_create_order(eb, j) { struct i915_capture_list *capture; - for_each_batch_create_order(eb, j) { - if (!eb->requests[j]) - break; + capture = kmalloc(sizeof(*capture), GFP_KERNEL); + if (!capture) + continue; - capture = kmalloc(sizeof(*capture), GFP_KERNEL); - if (capture) { - capture->next = - eb->requests[j]->capture_list; - capture->vma = vma; - eb->requests[j]->capture_list = capture; - } - } + capture->next = eb->capture_lists[j]; + capture->vma_snapshot = i915_vma_snapshot_get(vsnap); + eb->capture_lists[j] = capture; + } + i915_vma_snapshot_put(vsnap); + } +} + +/* Commit once we're in the critical path */ +static void eb_capture_commit(struct i915_execbuffer *eb) +{ + unsigned int j; + + for_each_batch_create_order(eb, j) { + struct i915_request *rq = eb->requests[j]; + + if (!rq) + break; + + rq->capture_list = eb->capture_lists[j]; + eb->capture_lists[j] = NULL; + } +} + +/* + * Release anything that didn't get committed due to errors. + * The capture_list will otherwise be freed at request retire. + */ +static void eb_capture_release(struct i915_execbuffer *eb) +{ + unsigned int j; + + for_each_batch_create_order(eb, j) { + if (eb->capture_lists[j]) { + i915_request_free_capture_list(eb->capture_lists[j]); + eb->capture_lists[j] = NULL; } + } +} + +static void eb_capture_list_clear(struct i915_execbuffer *eb) +{ + memset(eb->capture_lists, 0, sizeof(eb->capture_lists)); +} + +#else + +static void eb_capture_stage(struct i915_execbuffer *eb) +{ +} + +static void eb_capture_commit(struct i915_execbuffer *eb) +{ +} + +static void eb_capture_release(struct i915_execbuffer *eb) +{ +} + +static void eb_capture_list_clear(struct i915_execbuffer *eb) +{ +} + +#endif + +static int eb_move_to_gpu(struct i915_execbuffer *eb) +{ + const unsigned int count = eb->buffer_count; + unsigned int i = count; + int err = 0, j; + + while (i--) { + struct eb_vma *ev = &eb->vma[i]; + struct i915_vma *vma = ev->vma; + unsigned int flags = ev->flags; + struct drm_i915_gem_object *obj = vma->obj; + + assert_vma_held(vma); /* * If the GPU is not _reading_ through the CPU cache, we need @@ -1990,6 +2073,8 @@ static int eb_move_to_gpu(struct i915_execbuffer *eb) /* Unconditionally flush any chipset caches (for streaming writes). */ intel_gt_chipset_flush(eb->gt); + eb_capture_commit(eb); + return 0; err_skip: @@ -2164,7 +2249,7 @@ static int eb_parse(struct i915_execbuffer *eb) goto err_trampoline; } - err = dma_resv_reserve_shared(shadow->resv, 1); + err = dma_resv_reserve_shared(shadow->obj->base.resv, 1); if (err) goto err_trampoline; @@ -3114,7 +3199,7 @@ eb_requests_create(struct i915_execbuffer *eb, struct dma_fence *in_fence, /* Allocate a request for this batch buffer nice and early. */ eb->requests[i] = i915_request_create(eb_find_context(eb, i)); if (IS_ERR(eb->requests[i])) { - out_fence = ERR_PTR(PTR_ERR(eb->requests[i])); + out_fence = ERR_CAST(eb->requests[i]); eb->requests[i] = NULL; return out_fence; } @@ -3132,13 +3217,14 @@ eb_requests_create(struct i915_execbuffer *eb, struct dma_fence *in_fence, } /* - * Whilst this request exists, batch_obj will be on the - * active_list, and so will hold the active reference. Only when - * this request is retired will the batch_obj be moved onto - * the inactive_list and lose its active reference. Hence we do - * not need to explicitly hold another reference here. + * Not really on stack, but we don't want to call + * kfree on the batch_snapshot when we put it, so use the + * _onstack interface. */ - eb->requests[i]->batch = eb->batches[i]->vma; + if (eb->batches[i]->vma) + i915_vma_snapshot_init_onstack(&eb->requests[i]->batch_snapshot, + eb->batches[i]->vma, + "batch"); if (eb->batch_pool) { GEM_BUG_ON(intel_context_is_parallel(eb->context)); intel_gt_buffer_pool_mark_active(eb->batch_pool, @@ -3187,6 +3273,8 @@ i915_gem_do_execbuffer(struct drm_device *dev, eb.fences = NULL; eb.num_fences = 0; + eb_capture_list_clear(&eb); + memset(eb.requests, 0, sizeof(struct i915_request *) * ARRAY_SIZE(eb.requests)); eb.composite_fence = NULL; @@ -3273,10 +3361,12 @@ i915_gem_do_execbuffer(struct drm_device *dev, } ww_acquire_done(&eb.ww.ctx); + eb_capture_stage(&eb); out_fence = eb_requests_create(&eb, in_fence, out_fence_fd); if (IS_ERR(out_fence)) { err = PTR_ERR(out_fence); + out_fence = NULL; if (eb.requests[0]) goto err_request; else |