From: Maarten Lankhorst Date: Tue, 18 Aug 2015 11:40:06 +0000 (+0200) Subject: drm/i915: Wait for object idle without locks in atomic_commit, v2. X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7580d774b0466fff28aab19db4f36dac37a3d1a9;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git drm/i915: Wait for object idle without locks in atomic_commit, v2. Make pinning and waiting a separate step, and wait for object idle without struct_mutex held. Changes since v1: - Do not wait when a reset is in progress. - Remove call to i915_gem_object_wait_rendering for intel_overlay_do_put_image (Chris Wilson) Signed-off-by: Maarten Lankhorst Reviewed-by: Chris Wilson --- diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 6eaf1e60f27d..17512583de0d 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -3017,8 +3017,6 @@ i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write); int __must_check i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj, u32 alignment, - struct intel_engine_cs *pipelined, - struct drm_i915_gem_request **pipelined_request, const struct i915_ggtt_view *view); void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj, const struct i915_ggtt_view *view); diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 381d6a519b7a..f1e3fdeea41f 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3883,17 +3883,11 @@ unlock: int i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj, u32 alignment, - struct intel_engine_cs *pipelined, - struct drm_i915_gem_request **pipelined_request, const struct i915_ggtt_view *view) { u32 old_read_domains, old_write_domain; int ret; - ret = i915_gem_object_sync(obj, pipelined, pipelined_request); - if (ret) - return ret; - /* Mark the pin_display early so that we account for the * display coherency whilst setting up the cache domains. */ diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c b/drivers/gpu/drm/i915/intel_atomic_plane.c index a11980696595..c6bb0fc1edfb 100644 --- a/drivers/gpu/drm/i915/intel_atomic_plane.c +++ b/drivers/gpu/drm/i915/intel_atomic_plane.c @@ -84,6 +84,7 @@ intel_plane_duplicate_state(struct drm_plane *plane) state = &intel_state->base; __drm_atomic_helper_plane_duplicate_state(plane, state); + intel_state->wait_req = NULL; return state; } @@ -100,6 +101,7 @@ void intel_plane_destroy_state(struct drm_plane *plane, struct drm_plane_state *state) { + WARN_ON(state && to_intel_plane_state(state)->wait_req); drm_atomic_helper_plane_destroy_state(plane, state); } diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 8393759782d0..2e5164265250 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2320,9 +2320,7 @@ static unsigned int intel_linear_alignment(struct drm_i915_private *dev_priv) int intel_pin_and_fence_fb_obj(struct drm_plane *plane, struct drm_framebuffer *fb, - const struct drm_plane_state *plane_state, - struct intel_engine_cs *pipelined, - struct drm_i915_gem_request **pipelined_request) + const struct drm_plane_state *plane_state) { struct drm_device *dev = fb->dev; struct drm_i915_private *dev_priv = dev->dev_private; @@ -2378,8 +2376,8 @@ intel_pin_and_fence_fb_obj(struct drm_plane *plane, */ intel_runtime_pm_get(dev_priv); - ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined, - pipelined_request, &view); + ret = i915_gem_object_pin_to_display_plane(obj, alignment, + &view); if (ret) goto err_pm; @@ -11426,9 +11424,14 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, * synchronisation, so all we want here is to pin the framebuffer * into the display plane and skip any waits. */ + if (!mmio_flip) { + ret = i915_gem_object_sync(obj, ring, &request); + if (ret) + goto cleanup_pending; + } + ret = intel_pin_and_fence_fb_obj(crtc->primary, fb, - crtc->primary->state, - mmio_flip ? i915_gem_request_get_ring(obj->last_write_req) : ring, &request); + crtc->primary->state); if (ret) goto cleanup_pending; @@ -13150,7 +13153,10 @@ static int intel_atomic_prepare_commit(struct drm_device *dev, struct drm_atomic_state *state, bool async) { + struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_plane_state *plane_state; struct drm_crtc_state *crtc_state; + struct drm_plane *plane; struct drm_crtc *crtc; int i, ret; @@ -13163,6 +13169,9 @@ static int intel_atomic_prepare_commit(struct drm_device *dev, ret = intel_crtc_wait_for_pending_flips(crtc); if (ret) return ret; + + if (atomic_read(&to_intel_crtc(crtc)->unpin_work_count) >= 2) + flush_workqueue(dev_priv->wq); } ret = mutex_lock_interruptible(&dev->struct_mutex); @@ -13170,6 +13179,37 @@ static int intel_atomic_prepare_commit(struct drm_device *dev, return ret; ret = drm_atomic_helper_prepare_planes(dev, state); + if (!ret && !async && !i915_reset_in_progress(&dev_priv->gpu_error)) { + u32 reset_counter; + + reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter); + mutex_unlock(&dev->struct_mutex); + + for_each_plane_in_state(state, plane, plane_state, i) { + struct intel_plane_state *intel_plane_state = + to_intel_plane_state(plane_state); + + if (!intel_plane_state->wait_req) + continue; + + ret = __i915_wait_request(intel_plane_state->wait_req, + reset_counter, true, + NULL, NULL); + + /* Swallow -EIO errors to allow updates during hw lockup. */ + if (ret == -EIO) + ret = 0; + + if (ret) + break; + } + + if (!ret) + return 0; + + mutex_lock(&dev->struct_mutex); + drm_atomic_helper_cleanup_planes(dev, state); + } mutex_unlock(&dev->struct_mutex); return ret; @@ -13196,15 +13236,17 @@ static int intel_atomic_commit(struct drm_device *dev, bool async) { struct drm_i915_private *dev_priv = dev->dev_private; - struct drm_crtc *crtc; struct drm_crtc_state *crtc_state; + struct drm_crtc *crtc; int ret = 0; int i; bool any_ms = false; ret = intel_atomic_prepare_commit(dev, state, async); - if (ret) + if (ret) { + DRM_DEBUG_ATOMIC("Preparing state failed with %i\n", ret); return ret; + } drm_atomic_helper_swap_state(dev, state); dev_priv->wm.config = to_intel_atomic_state(state)->wm_config; @@ -13495,11 +13537,20 @@ intel_prepare_plane_fb(struct drm_plane *plane, if (ret) DRM_DEBUG_KMS("failed to attach phys object\n"); } else { - ret = intel_pin_and_fence_fb_obj(plane, fb, new_state, NULL, NULL); + ret = intel_pin_and_fence_fb_obj(plane, fb, new_state); } - if (ret == 0) + if (ret == 0) { + if (obj) { + struct intel_plane_state *plane_state = + to_intel_plane_state(new_state); + + i915_gem_request_assign(&plane_state->wait_req, + obj->last_write_req); + } + i915_gem_track_fb(old_obj, obj, intel_plane->frontbuffer_bit); + } return ret; } @@ -13519,9 +13570,12 @@ intel_cleanup_plane_fb(struct drm_plane *plane, { struct drm_device *dev = plane->dev; struct intel_plane *intel_plane = to_intel_plane(plane); + struct intel_plane_state *old_intel_state; struct drm_i915_gem_object *old_obj = intel_fb_obj(old_state->fb); struct drm_i915_gem_object *obj = intel_fb_obj(plane->state->fb); + old_intel_state = to_intel_plane_state(old_state); + if (!obj && !old_obj) return; @@ -13533,6 +13587,9 @@ intel_cleanup_plane_fb(struct drm_plane *plane, if ((old_obj && (old_obj->frontbuffer_bits & intel_plane->frontbuffer_bit)) || (obj && !(obj->frontbuffer_bits & intel_plane->frontbuffer_bit))) i915_gem_track_fb(old_obj, obj, intel_plane->frontbuffer_bit); + + i915_gem_request_assign(&old_intel_state->wait_req, NULL); + } int @@ -15498,8 +15555,7 @@ void intel_modeset_gem_init(struct drm_device *dev) mutex_lock(&dev->struct_mutex); ret = intel_pin_and_fence_fb_obj(c->primary, c->primary->fb, - c->primary->state, - NULL, NULL); + c->primary->state); mutex_unlock(&dev->struct_mutex); if (ret) { DRM_ERROR("failed to pin boot fb on pipe %d\n", diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index bfb15a428b0d..d1a6071afabe 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -281,6 +281,9 @@ struct intel_plane_state { int scaler_id; struct drm_intel_sprite_colorkey ckey; + + /* async flip related structures */ + struct drm_i915_gem_request *wait_req; }; struct intel_initial_plane_config { @@ -1084,9 +1087,7 @@ void intel_release_load_detect_pipe(struct drm_connector *connector, struct drm_modeset_acquire_ctx *ctx); int intel_pin_and_fence_fb_obj(struct drm_plane *plane, struct drm_framebuffer *fb, - const struct drm_plane_state *plane_state, - struct intel_engine_cs *pipelined, - struct drm_i915_gem_request **pipelined_request); + const struct drm_plane_state *plane_state); struct drm_framebuffer * __intel_framebuffer_create(struct drm_device *dev, struct drm_mode_fb_cmd2 *mode_cmd, diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c index 4fd5fdfef6bd..840d6bf5e8d5 100644 --- a/drivers/gpu/drm/i915/intel_fbdev.c +++ b/drivers/gpu/drm/i915/intel_fbdev.c @@ -161,7 +161,7 @@ static int intelfb_alloc(struct drm_fb_helper *helper, } /* Flush everything out, we'll be doing GTT only from now on */ - ret = intel_pin_and_fence_fb_obj(NULL, fb, NULL, NULL, NULL); + ret = intel_pin_and_fence_fb_obj(NULL, fb, NULL); if (ret) { DRM_ERROR("failed to pin obj: %d\n", ret); goto out_fb; diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c index 444542696a2c..76f1980a7541 100644 --- a/drivers/gpu/drm/i915/intel_overlay.c +++ b/drivers/gpu/drm/i915/intel_overlay.c @@ -749,7 +749,7 @@ static int intel_overlay_do_put_image(struct intel_overlay *overlay, if (ret != 0) return ret; - ret = i915_gem_object_pin_to_display_plane(new_bo, 0, NULL, NULL, + ret = i915_gem_object_pin_to_display_plane(new_bo, 0, &i915_ggtt_view_normal); if (ret != 0) return ret;