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[200.153.216.19]) by smtp.gmail.com with ESMTPSA id y188sm1857958qkb.27.2017.04.27.08.15.29 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 27 Apr 2017 08:15:30 -0700 (PDT) From: Gustavo Padovan To: dri-devel@lists.freedesktop.org Subject: [RFC v2 3/7] drm/i915: update cursors asynchronously through atomic Date: Thu, 27 Apr 2017 12:15:15 -0300 Message-Id: <20170427151519.8308-4-gustavo@padovan.org> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170427151519.8308-1-gustavo@padovan.org> References: <20170427151519.8308-1-gustavo@padovan.org> Cc: Gustavo Padovan , Daniel Vetter X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Gustavo Padovan Add support to async updates of cursors by using the new atomic interface for that. Basically what this commit does is do what intel_legacy_cursor_update() did but through atomic. v2: move fb setting to core and use new state (Eric Anholt) Cc: Daniel Vetter Signed-off-by: Gustavo Padovan --- drivers/gpu/drm/i915/intel_atomic_plane.c | 52 +++++++++++ drivers/gpu/drm/i915/intel_display.c | 147 +++++------------------------- 2 files changed, 73 insertions(+), 126 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c b/drivers/gpu/drm/i915/intel_atomic_plane.c index cfb4729..c5d0596 100644 --- a/drivers/gpu/drm/i915/intel_atomic_plane.c +++ b/drivers/gpu/drm/i915/intel_atomic_plane.c @@ -246,11 +246,63 @@ static void intel_plane_atomic_update(struct drm_plane *plane, } } +static int intel_plane_atomic_async_check(struct drm_plane *plane, + struct drm_plane_state *state) +{ + struct drm_crtc *crtc = plane->state->crtc; + struct drm_crtc_state *crtc_state = crtc->state; + + if (plane->type != DRM_PLANE_TYPE_CURSOR) + return -EINVAL; + + /* + * When crtc is inactive or there is a modeset pending, + * wait for it to complete in the slowpath + */ + if (!crtc_state->active || to_intel_crtc_state(crtc_state)->update_pipe) + return -EINVAL; + + /* Only changing fb should be in the fastpath. */ + if (!plane->state->fb != !state->fb) + return -EINVAL; + + return 0; +} + +static void intel_plane_atomic_async_update(struct drm_plane *plane, + struct drm_plane_state *new_state) +{ + struct intel_plane *intel_plane = to_intel_plane(plane); + struct drm_crtc *crtc = plane->state->crtc; + + i915_gem_track_fb(intel_fb_obj(plane->state->fb), + intel_fb_obj(new_state->fb), + intel_plane->frontbuffer_bit); + + *to_intel_plane_state(plane->state) = *to_intel_plane_state(new_state); + to_intel_plane_state(new_state)->vma = + to_intel_plane_state(plane->state)->vma; + + plane->state->visible = new_state->visible; + + if (plane->state->visible) { + trace_intel_update_plane(plane, to_intel_crtc(crtc)); + intel_plane->update_plane(plane, + to_intel_crtc_state(crtc->state), + to_intel_plane_state(new_state)); + } else { + trace_intel_disable_plane(plane, to_intel_crtc(crtc)); + intel_plane->disable_plane(plane, crtc); + } +} + const struct drm_plane_helper_funcs intel_plane_helper_funcs = { .prepare_fb = intel_prepare_plane_fb, .cleanup_fb = intel_cleanup_plane_fb, .atomic_check = intel_plane_atomic_check, .atomic_update = intel_plane_atomic_update, + .atomic_async_check = intel_plane_atomic_async_check, + .atomic_async_update = intel_plane_atomic_async_update, }; /** diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index e217d04..c854c87 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -12993,13 +12993,29 @@ static int intel_atomic_commit(struct drm_device *dev, int ret = 0; /* - * The intel_legacy_cursor_update() fast path takes care + * The atomic async update fast path takes care * of avoiding the vblank waits for simple cursor * movement and flips. For cursor on/off and size changes, * we want to perform the vblank waits so that watermark * updates happen during the correct frames. Gen9+ have * double buffered watermarks and so shouldn't need this. */ + if (state->async_update) { + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + return ret; + + ret = drm_atomic_helper_prepare_planes(dev, state); + mutex_unlock(&dev->struct_mutex); + + drm_atomic_helper_async_commit(dev, state); + + mutex_lock(&dev->struct_mutex); + drm_atomic_helper_cleanup_planes(dev, state); + mutex_unlock(&dev->struct_mutex); + return 0; + } + if (INTEL_GEN(dev_priv) < 9) state->legacy_cursor_update = false; @@ -13141,6 +13157,9 @@ intel_prepare_plane_fb(struct drm_plane *plane, } } + if (new_state->state->async_update) + return 0; + if (!obj && !old_obj) return 0; @@ -13360,132 +13379,8 @@ const struct drm_plane_funcs intel_plane_funcs = { .atomic_destroy_state = intel_plane_destroy_state, }; -static int -intel_legacy_cursor_update(struct drm_plane *plane, - struct drm_crtc *crtc, - struct drm_framebuffer *fb, - int crtc_x, int crtc_y, - unsigned int crtc_w, unsigned int crtc_h, - uint32_t src_x, uint32_t src_y, - uint32_t src_w, uint32_t src_h, - struct drm_modeset_acquire_ctx *ctx) -{ - struct drm_i915_private *dev_priv = to_i915(crtc->dev); - int ret; - struct drm_plane_state *old_plane_state, *new_plane_state; - struct intel_plane *intel_plane = to_intel_plane(plane); - struct drm_framebuffer *old_fb; - struct drm_crtc_state *crtc_state = crtc->state; - struct i915_vma *old_vma; - - /* - * When crtc is inactive or there is a modeset pending, - * wait for it to complete in the slowpath - */ - if (!crtc_state->active || needs_modeset(crtc_state) || - to_intel_crtc_state(crtc_state)->update_pipe) - goto slow; - - old_plane_state = plane->state; - - /* - * If any parameters change that may affect watermarks, - * take the slowpath. Only changing fb or position should be - * in the fastpath. - */ - if (old_plane_state->crtc != crtc || - old_plane_state->src_w != src_w || - old_plane_state->src_h != src_h || - old_plane_state->crtc_w != crtc_w || - old_plane_state->crtc_h != crtc_h || - !old_plane_state->fb != !fb) - goto slow; - - new_plane_state = intel_plane_duplicate_state(plane); - if (!new_plane_state) - return -ENOMEM; - - drm_atomic_set_fb_for_plane(new_plane_state, fb); - - new_plane_state->src_x = src_x; - new_plane_state->src_y = src_y; - new_plane_state->src_w = src_w; - new_plane_state->src_h = src_h; - new_plane_state->crtc_x = crtc_x; - new_plane_state->crtc_y = crtc_y; - new_plane_state->crtc_w = crtc_w; - new_plane_state->crtc_h = crtc_h; - - ret = intel_plane_atomic_check_with_state(to_intel_crtc_state(crtc->state), - to_intel_plane_state(new_plane_state)); - if (ret) - goto out_free; - - ret = mutex_lock_interruptible(&dev_priv->drm.struct_mutex); - if (ret) - goto out_free; - - if (INTEL_INFO(dev_priv)->cursor_needs_physical) { - int align = IS_I830(dev_priv) ? 16 * 1024 : 256; - - ret = i915_gem_object_attach_phys(intel_fb_obj(fb), align); - if (ret) { - DRM_DEBUG_KMS("failed to attach phys object\n"); - goto out_unlock; - } - } else { - struct i915_vma *vma; - - vma = intel_pin_and_fence_fb_obj(fb, new_plane_state->rotation); - if (IS_ERR(vma)) { - DRM_DEBUG_KMS("failed to pin object\n"); - - ret = PTR_ERR(vma); - goto out_unlock; - } - - to_intel_plane_state(new_plane_state)->vma = vma; - } - - old_fb = old_plane_state->fb; - old_vma = to_intel_plane_state(old_plane_state)->vma; - - i915_gem_track_fb(intel_fb_obj(old_fb), intel_fb_obj(fb), - intel_plane->frontbuffer_bit); - - /* Swap plane state */ - new_plane_state->fence = old_plane_state->fence; - *to_intel_plane_state(old_plane_state) = *to_intel_plane_state(new_plane_state); - new_plane_state->fence = NULL; - new_plane_state->fb = old_fb; - to_intel_plane_state(new_plane_state)->vma = old_vma; - - if (plane->state->visible) { - trace_intel_update_plane(plane, to_intel_crtc(crtc)); - intel_plane->update_plane(plane, - to_intel_crtc_state(crtc->state), - to_intel_plane_state(plane->state)); - } else { - trace_intel_disable_plane(plane, to_intel_crtc(crtc)); - intel_plane->disable_plane(plane, crtc); - } - - intel_cleanup_plane_fb(plane, new_plane_state); - -out_unlock: - mutex_unlock(&dev_priv->drm.struct_mutex); -out_free: - intel_plane_destroy_state(plane, new_plane_state); - return ret; - -slow: - return drm_atomic_helper_update_plane(plane, crtc, fb, - crtc_x, crtc_y, crtc_w, crtc_h, - src_x, src_y, src_w, src_h, ctx); -} - static const struct drm_plane_funcs intel_cursor_plane_funcs = { - .update_plane = intel_legacy_cursor_update, + .update_plane = drm_atomic_helper_update_plane, .disable_plane = drm_atomic_helper_disable_plane, .destroy = intel_plane_destroy, .set_property = drm_atomic_helper_plane_set_property,