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Thu, 3 Sep 2020 04:03:45 -0400 (EDT) From: Maxime Ripard To: Nicolas Saenz Julienne , Eric Anholt Subject: [PATCH v5 79/80] drm/vc4: drv: Support BCM2711 Date: Thu, 3 Sep 2020 10:01:51 +0200 Message-Id: X-Mailer: git-send-email 2.26.2 In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200903_040349_450041_D79B4C71 X-CRM114-Status: GOOD ( 17.29 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Stefan Wahren , Tim Gover , Dave Stevenson , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Hoegeun Kwon , Chanwoo Choi , bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org, Phil Elwell , linux-arm-kernel@lists.infradead.org, Maxime Ripard Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The BCM2711 has a reworked display pipeline, and the load tracker needs some adjustment to operate properly. Let's add a compatible for BCM2711 and disable the load tracker until properly supported. Tested-by: Chanwoo Choi Tested-by: Hoegeun Kwon Tested-by: Stefan Wahren Signed-off-by: Maxime Ripard --- drivers/gpu/drm/vc4/vc4_drv.c | 1 +- drivers/gpu/drm/vc4/vc4_drv.h | 3 ++- drivers/gpu/drm/vc4/vc4_kms.c | 44 +++++++++++++++++++++++----------- drivers/gpu/drm/vc4/vc4_plane.c | 5 ++++- 4 files changed, 40 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c index 9567d1019212..f1a5fd5dab6f 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.c +++ b/drivers/gpu/drm/vc4/vc4_drv.c @@ -372,6 +372,7 @@ static int vc4_platform_drm_remove(struct platform_device *pdev) } static const struct of_device_id vc4_of_match[] = { + { .compatible = "brcm,bcm2711-vc5", }, { .compatible = "brcm,bcm2835-vc4", }, { .compatible = "brcm,cygnus-vc4", }, {}, diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index 501a48a714d3..8c8d96b6289f 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -200,6 +200,9 @@ struct vc4_dev { int power_refcount; + /* Set to true when the load tracker is supported. */ + bool load_tracker_available; + /* Set to true when the load tracker is active. */ bool load_tracker_enabled; diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c index bfc7ddd49ac5..16e233e1406e 100644 --- a/drivers/gpu/drm/vc4/vc4_kms.c +++ b/drivers/gpu/drm/vc4/vc4_kms.c @@ -536,6 +536,9 @@ static int vc4_load_tracker_atomic_check(struct drm_atomic_state *state) struct drm_plane *plane; int i; + if (!vc4->load_tracker_available) + return 0; + priv_state = drm_atomic_get_private_obj_state(state, &vc4->load_tracker); if (IS_ERR(priv_state)) @@ -683,12 +686,18 @@ int vc4_kms_load(struct drm_device *dev) struct vc4_dev *vc4 = to_vc4_dev(dev); struct vc4_ctm_state *ctm_state; struct vc4_load_tracker_state *load_state; + bool is_vc5 = of_device_is_compatible(dev->dev->of_node, + "brcm,bcm2711-vc5"); int ret; - /* Start with the load tracker enabled. Can be disabled through the - * debugfs load_tracker file. - */ - vc4->load_tracker_enabled = true; + if (!is_vc5) { + vc4->load_tracker_available = true; + + /* Start with the load tracker enabled. Can be + * disabled through the debugfs load_tracker file. + */ + vc4->load_tracker_enabled = true; + } sema_init(&vc4->async_modeset, 1); @@ -702,8 +711,14 @@ int vc4_kms_load(struct drm_device *dev) return ret; } - dev->mode_config.max_width = 2048; - dev->mode_config.max_height = 2048; + if (is_vc5) { + dev->mode_config.max_width = 7680; + dev->mode_config.max_height = 7680; + } else { + dev->mode_config.max_width = 2048; + dev->mode_config.max_height = 2048; + } + dev->mode_config.funcs = &vc4_mode_funcs; dev->mode_config.preferred_depth = 24; dev->mode_config.async_page_flip = true; @@ -718,14 +733,17 @@ int vc4_kms_load(struct drm_device *dev) drm_atomic_private_obj_init(dev, &vc4->ctm_manager, &ctm_state->base, &vc4_ctm_state_funcs); - load_state = kzalloc(sizeof(*load_state), GFP_KERNEL); - if (!load_state) { - drm_atomic_private_obj_fini(&vc4->ctm_manager); - return -ENOMEM; - } + if (vc4->load_tracker_available) { + load_state = kzalloc(sizeof(*load_state), GFP_KERNEL); + if (!load_state) { + drm_atomic_private_obj_fini(&vc4->ctm_manager); + return -ENOMEM; + } - drm_atomic_private_obj_init(dev, &vc4->load_tracker, &load_state->base, - &vc4_load_tracker_state_funcs); + drm_atomic_private_obj_init(dev, &vc4->load_tracker, + &load_state->base, + &vc4_load_tracker_state_funcs); + } drm_mode_config_reset(dev); diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c index 1e38e603f83b..24d7e6db6fdd 100644 --- a/drivers/gpu/drm/vc4/vc4_plane.c +++ b/drivers/gpu/drm/vc4/vc4_plane.c @@ -516,6 +516,11 @@ static void vc4_plane_calc_load(struct drm_plane_state *state) struct vc4_plane_state *vc4_state; struct drm_crtc_state *crtc_state; unsigned int vscale_factor; + struct vc4_dev *vc4; + + vc4 = to_vc4_dev(state->plane->dev); + if (!vc4->load_tracker_available) + return; vc4_state = to_vc4_plane_state(state); crtc_state = drm_atomic_get_existing_crtc_state(state->state, -- git-series 0.9.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel