From patchwork Mon Feb 22 14:17:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 12098763 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 06795C43381 for ; Mon, 22 Feb 2021 14:18:23 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 750B564E5C for ; Mon, 22 Feb 2021 14:18:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 750B564E5C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.88101.165517 (Exim 4.92) (envelope-from ) id 1lEC2L-0000Qk-5H; Mon, 22 Feb 2021 14:18:09 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 88101.165517; Mon, 22 Feb 2021 14:18:09 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lEC2L-0000Qd-1O; Mon, 22 Feb 2021 14:18:09 +0000 Received: by outflank-mailman (input) for mailman id 88101; Mon, 22 Feb 2021 14:18:07 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lEC2J-0000QY-Fg for xen-devel@lists.xenproject.org; Mon, 22 Feb 2021 14:18:07 +0000 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 6ef01bd8-9828-410e-9664-a5a4e678bd9e; Mon, 22 Feb 2021 14:18:04 +0000 (UTC) Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 2C0A4AFF9; Mon, 22 Feb 2021 14:18:03 +0000 (UTC) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 6ef01bd8-9828-410e-9664-a5a4e678bd9e X-Virus-Scanned: by amavisd-new at test-mx.suse.de From: Thomas Zimmermann To: airlied@linux.ie, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org Cc: dri-devel@lists.freedesktop.org, linux-aspeed@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, linux-tegra@vger.kernel.org, xen-devel@lists.xenproject.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, Thomas Zimmermann Subject: [PATCH v3] drm/gem: Move drm_gem_fb_prepare_fb() to GEM atomic helpers Date: Mon, 22 Feb 2021 15:17:56 +0100 Message-Id: <20210222141756.7864-1-tzimmermann@suse.de> X-Mailer: git-send-email 2.30.1 MIME-Version: 1.0 The function drm_gem_fb_prepare_fb() is a helper for atomic modesetting, but currently located next to framebuffer helpers. Move it to GEM atomic helpers, rename it slightly and adopt the drivers. Same for the rsp simple-pipe helper. Compile-tested with x86-64, aarch64 and arm. The patch is fairly large, but there are no functional changes. v3: * remove out-comented line in drm_gem_framebuffer_helper.h (Maxime) v2: * rename to drm_gem_plane_helper_prepare_fb() (Daniel) * add tutorial-style documentation Signed-off-by: Thomas Zimmermann Acked-by: Maxime Ripard --- drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c | 4 +- drivers/gpu/drm/drm_gem_atomic_helper.c | 96 +++++++++++++++++++- drivers/gpu/drm/drm_gem_framebuffer_helper.c | 63 ------------- drivers/gpu/drm/drm_gem_vram_helper.c | 4 +- drivers/gpu/drm/imx/dcss/dcss-plane.c | 4 +- drivers/gpu/drm/imx/ipuv3-plane.c | 4 +- drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 3 +- drivers/gpu/drm/ingenic/ingenic-ipu.c | 4 +- drivers/gpu/drm/mcde/mcde_display.c | 4 +- drivers/gpu/drm/mediatek/mtk_drm_plane.c | 6 +- drivers/gpu/drm/meson/meson_overlay.c | 8 +- drivers/gpu/drm/meson/meson_plane.c | 4 +- drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 4 +- drivers/gpu/drm/msm/msm_atomic.c | 4 +- drivers/gpu/drm/mxsfb/mxsfb_kms.c | 6 +- drivers/gpu/drm/pl111/pl111_display.c | 4 +- drivers/gpu/drm/rcar-du/rcar_du_vsp.c | 4 +- drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 3 +- drivers/gpu/drm/stm/ltdc.c | 4 +- drivers/gpu/drm/sun4i/sun4i_layer.c | 4 +- drivers/gpu/drm/sun4i/sun8i_ui_layer.c | 4 +- drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 4 +- drivers/gpu/drm/tegra/plane.c | 4 +- drivers/gpu/drm/tidss/tidss_plane.c | 4 +- drivers/gpu/drm/tiny/hx8357d.c | 4 +- drivers/gpu/drm/tiny/ili9225.c | 4 +- drivers/gpu/drm/tiny/ili9341.c | 4 +- drivers/gpu/drm/tiny/ili9486.c | 4 +- drivers/gpu/drm/tiny/mi0283qt.c | 4 +- drivers/gpu/drm/tiny/repaper.c | 3 +- drivers/gpu/drm/tiny/st7586.c | 4 +- drivers/gpu/drm/tiny/st7735r.c | 4 +- drivers/gpu/drm/tve200/tve200_display.c | 4 +- drivers/gpu/drm/vc4/vc4_plane.c | 4 +- drivers/gpu/drm/vkms/vkms_plane.c | 3 +- drivers/gpu/drm/xen/xen_drm_front_kms.c | 3 +- include/drm/drm_gem_atomic_helper.h | 8 ++ include/drm/drm_gem_framebuffer_helper.h | 7 -- include/drm/drm_modeset_helper_vtables.h | 2 +- include/drm/drm_plane.h | 4 +- include/drm/drm_simple_kms_helper.h | 2 +- 41 files changed, 176 insertions(+), 145 deletions(-) -- 2.30.1 diff --git a/drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c b/drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c index 20c2197b270f..098f96d4d50d 100644 --- a/drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c +++ b/drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c @@ -9,8 +9,8 @@ #include #include #include +#include #include -#include #include #include #include @@ -220,7 +220,7 @@ static const struct drm_simple_display_pipe_funcs aspeed_gfx_funcs = { .enable = aspeed_gfx_pipe_enable, .disable = aspeed_gfx_pipe_disable, .update = aspeed_gfx_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, + .prepare_fb = drm_gem_simple_display_pipe_prepare_fb, .enable_vblank = aspeed_gfx_enable_vblank, .disable_vblank = aspeed_gfx_disable_vblank, }; diff --git a/drivers/gpu/drm/drm_gem_atomic_helper.c b/drivers/gpu/drm/drm_gem_atomic_helper.c index fa4eae492b81..a005c5a0ba46 100644 --- a/drivers/gpu/drm/drm_gem_atomic_helper.c +++ b/drivers/gpu/drm/drm_gem_atomic_helper.c @@ -1,6 +1,10 @@ // SPDX-License-Identifier: GPL-2.0-or-later +#include + #include +#include +#include #include #include #include @@ -12,8 +16,33 @@ * * The GEM atomic helpers library implements generic atomic-commit * functions for drivers that use GEM objects. Currently, it provides - * plane state and framebuffer BO mappings for planes with shadow - * buffers. + * synchronization helpers, and plane state and framebuffer BO mappings + * for planes with shadow buffers. + * + * Before scanout, a plane's framebuffer needs to be synchronized with + * possible writers that draw into the framebuffer. All drivers should + * call drm_gem_plane_helper_prepare_fb() from their implementation of + * struct &drm_plane_helper.prepare_fb . It sets the plane's fence from + * the framebuffer so that the DRM core can synchronize access automatically. + * + * drm_gem_plane_helper_prepare_fb() can also be used directly as + * implementation of prepare_fb. For drivers based on + * struct drm_simple_display_pipe, drm_gem_simple_display_pipe_prepare_fb() + * provides equivalent functionality. + * + * .. code-block:: c + * + * #include + * + * struct drm_plane_helper_funcs driver_plane_helper_funcs = { + * ..., + * . prepare_fb = drm_gem_plane_helper_prepare_fb, + * }; + * + * struct drm_simple_display_pipe_funcs driver_pipe_funcs = { + * ..., + * . prepare_fb = drm_gem_simple_display_pipe_prepare_fb, + * }; * * A driver using a shadow buffer copies the content of the shadow buffers * into the HW's framebuffer memory during an atomic update. This requires @@ -32,7 +61,7 @@ * * .. code-block:: c * - * #include + * #include * * struct drm_plane_funcs driver_plane_funcs = { * ..., @@ -87,6 +116,65 @@ * } */ +/* + * Plane Helpers + */ + +/** + * drm_gem_plane_helper_prepare_fb() - Prepare a GEM backed framebuffer + * @plane: Plane + * @state: Plane state the fence will be attached to + * + * This function extracts the exclusive fence from &drm_gem_object.resv and + * attaches it to plane state for the atomic helper to wait on. This is + * necessary to correctly implement implicit synchronization for any buffers + * shared as a struct &dma_buf. This function can be used as the + * &drm_plane_helper_funcs.prepare_fb callback. + * + * There is no need for &drm_plane_helper_funcs.cleanup_fb hook for simple + * GEM based framebuffer drivers which have their buffers always pinned in + * memory. + * + * See drm_atomic_set_fence_for_plane() for a discussion of implicit and + * explicit fencing in atomic modeset updates. + */ +int drm_gem_plane_helper_prepare_fb(struct drm_plane *plane, struct drm_plane_state *state) +{ + struct drm_gem_object *obj; + struct dma_fence *fence; + + if (!state->fb) + return 0; + + obj = drm_gem_fb_get_obj(state->fb, 0); + fence = dma_resv_get_excl_rcu(obj->resv); + drm_atomic_set_fence_for_plane(state, fence); + + return 0; +} +EXPORT_SYMBOL_GPL(drm_gem_plane_helper_prepare_fb); + +/** + * drm_gem_simple_display_pipe_prepare_fb - prepare_fb helper for &drm_simple_display_pipe + * @pipe: Simple display pipe + * @plane_state: Plane state + * + * This function uses drm_gem_plane_helper_prepare_fb() to extract the exclusive fence + * from &drm_gem_object.resv and attaches it to plane state for the atomic + * helper to wait on. This is necessary to correctly implement implicit + * synchronization for any buffers shared as a struct &dma_buf. Drivers can use + * this as their &drm_simple_display_pipe_funcs.prepare_fb callback. + * + * See drm_atomic_set_fence_for_plane() for a discussion of implicit and + * explicit fencing in atomic modeset updates. + */ +int drm_gem_simple_display_pipe_prepare_fb(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *plane_state) +{ + return drm_gem_plane_helper_prepare_fb(&pipe->plane, plane_state); +} +EXPORT_SYMBOL(drm_gem_simple_display_pipe_prepare_fb); + /* * Shadow-buffered Planes */ @@ -198,7 +286,7 @@ int drm_gem_prepare_shadow_fb(struct drm_plane *plane, struct drm_plane_state *p if (!fb) return 0; - ret = drm_gem_fb_prepare_fb(plane, plane_state); + ret = drm_gem_plane_helper_prepare_fb(plane, plane_state); if (ret) return ret; diff --git a/drivers/gpu/drm/drm_gem_framebuffer_helper.c b/drivers/gpu/drm/drm_gem_framebuffer_helper.c index 109d11fb4cd4..5ed2067cebb6 100644 --- a/drivers/gpu/drm/drm_gem_framebuffer_helper.c +++ b/drivers/gpu/drm/drm_gem_framebuffer_helper.c @@ -5,13 +5,8 @@ * Copyright (C) 2017 Noralf Trønnes */ -#include -#include -#include #include -#include -#include #include #include #include @@ -19,7 +14,6 @@ #include #include #include -#include #define AFBC_HEADER_SIZE 16 #define AFBC_TH_LAYOUT_ALIGNMENT 8 @@ -432,60 +426,3 @@ int drm_gem_fb_afbc_init(struct drm_device *dev, return 0; } EXPORT_SYMBOL_GPL(drm_gem_fb_afbc_init); - -/** - * drm_gem_fb_prepare_fb() - Prepare a GEM backed framebuffer - * @plane: Plane - * @state: Plane state the fence will be attached to - * - * This function extracts the exclusive fence from &drm_gem_object.resv and - * attaches it to plane state for the atomic helper to wait on. This is - * necessary to correctly implement implicit synchronization for any buffers - * shared as a struct &dma_buf. This function can be used as the - * &drm_plane_helper_funcs.prepare_fb callback. - * - * There is no need for &drm_plane_helper_funcs.cleanup_fb hook for simple - * gem based framebuffer drivers which have their buffers always pinned in - * memory. - * - * See drm_atomic_set_fence_for_plane() for a discussion of implicit and - * explicit fencing in atomic modeset updates. - */ -int drm_gem_fb_prepare_fb(struct drm_plane *plane, - struct drm_plane_state *state) -{ - struct drm_gem_object *obj; - struct dma_fence *fence; - - if (!state->fb) - return 0; - - obj = drm_gem_fb_get_obj(state->fb, 0); - fence = dma_resv_get_excl_rcu(obj->resv); - drm_atomic_set_fence_for_plane(state, fence); - - return 0; -} -EXPORT_SYMBOL_GPL(drm_gem_fb_prepare_fb); - -/** - * drm_gem_fb_simple_display_pipe_prepare_fb - prepare_fb helper for - * &drm_simple_display_pipe - * @pipe: Simple display pipe - * @plane_state: Plane state - * - * This function uses drm_gem_fb_prepare_fb() to extract the exclusive fence - * from &drm_gem_object.resv and attaches it to plane state for the atomic - * helper to wait on. This is necessary to correctly implement implicit - * synchronization for any buffers shared as a struct &dma_buf. Drivers can use - * this as their &drm_simple_display_pipe_funcs.prepare_fb callback. - * - * See drm_atomic_set_fence_for_plane() for a discussion of implicit and - * explicit fencing in atomic modeset updates. - */ -int drm_gem_fb_simple_display_pipe_prepare_fb(struct drm_simple_display_pipe *pipe, - struct drm_plane_state *plane_state) -{ - return drm_gem_fb_prepare_fb(&pipe->plane, plane_state); -} -EXPORT_SYMBOL(drm_gem_fb_simple_display_pipe_prepare_fb); diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c index 2226ef5ba6dc..2b7c3a07956d 100644 --- a/drivers/gpu/drm/drm_gem_vram_helper.c +++ b/drivers/gpu/drm/drm_gem_vram_helper.c @@ -8,7 +8,7 @@ #include #include #include -#include +#include #include #include #include @@ -708,7 +708,7 @@ drm_gem_vram_plane_helper_prepare_fb(struct drm_plane *plane, goto err_drm_gem_vram_unpin; } - ret = drm_gem_fb_prepare_fb(plane, new_state); + ret = drm_gem_plane_helper_prepare_fb(plane, new_state); if (ret) goto err_drm_gem_vram_unpin; diff --git a/drivers/gpu/drm/imx/dcss/dcss-plane.c b/drivers/gpu/drm/imx/dcss/dcss-plane.c index 03ba88f7f995..4723da457bad 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-plane.c +++ b/drivers/gpu/drm/imx/dcss/dcss-plane.c @@ -6,7 +6,7 @@ #include #include #include -#include +#include #include #include "dcss-dev.h" @@ -355,7 +355,7 @@ static void dcss_plane_atomic_disable(struct drm_plane *plane, } static const struct drm_plane_helper_funcs dcss_plane_helper_funcs = { - .prepare_fb = drm_gem_fb_prepare_fb, + .prepare_fb = drm_gem_plane_helper_prepare_fb, .atomic_check = dcss_plane_atomic_check, .atomic_update = dcss_plane_atomic_update, .atomic_disable = dcss_plane_atomic_disable, diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c index 075508051b5f..cff783a37162 100644 --- a/drivers/gpu/drm/imx/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3-plane.c @@ -9,8 +9,8 @@ #include #include #include +#include #include -#include #include #include @@ -704,7 +704,7 @@ static void ipu_plane_atomic_update(struct drm_plane *plane, } static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = { - .prepare_fb = drm_gem_fb_prepare_fb, + .prepare_fb = drm_gem_plane_helper_prepare_fb, .atomic_check = ipu_plane_atomic_check, .atomic_disable = ipu_plane_atomic_disable, .atomic_update = ipu_plane_atomic_update, diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c index 7bb31fbee29d..c00961907b10 100644 --- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c +++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include #include @@ -780,7 +781,7 @@ static const struct drm_plane_helper_funcs ingenic_drm_plane_helper_funcs = { .atomic_update = ingenic_drm_plane_atomic_update, .atomic_check = ingenic_drm_plane_atomic_check, .atomic_disable = ingenic_drm_plane_atomic_disable, - .prepare_fb = drm_gem_fb_prepare_fb, + .prepare_fb = drm_gem_plane_helper_prepare_fb, }; static const struct drm_crtc_helper_funcs ingenic_drm_crtc_helper_funcs = { diff --git a/drivers/gpu/drm/ingenic/ingenic-ipu.c b/drivers/gpu/drm/ingenic/ingenic-ipu.c index e52777ef85fd..91457263a3ce 100644 --- a/drivers/gpu/drm/ingenic/ingenic-ipu.c +++ b/drivers/gpu/drm/ingenic/ingenic-ipu.c @@ -23,7 +23,7 @@ #include #include #include -#include +#include #include #include #include @@ -608,7 +608,7 @@ static const struct drm_plane_helper_funcs ingenic_ipu_plane_helper_funcs = { .atomic_update = ingenic_ipu_plane_atomic_update, .atomic_check = ingenic_ipu_plane_atomic_check, .atomic_disable = ingenic_ipu_plane_atomic_disable, - .prepare_fb = drm_gem_fb_prepare_fb, + .prepare_fb = drm_gem_plane_helper_prepare_fb, }; static int diff --git a/drivers/gpu/drm/mcde/mcde_display.c b/drivers/gpu/drm/mcde/mcde_display.c index 83ac7493e751..4ddc55d58f38 100644 --- a/drivers/gpu/drm/mcde/mcde_display.c +++ b/drivers/gpu/drm/mcde/mcde_display.c @@ -13,8 +13,8 @@ #include #include #include +#include #include -#include #include #include #include @@ -1479,7 +1479,7 @@ static struct drm_simple_display_pipe_funcs mcde_display_funcs = { .update = mcde_display_update, .enable_vblank = mcde_display_enable_vblank, .disable_vblank = mcde_display_disable_vblank, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, + .prepare_fb = drm_gem_simple_display_pipe_prepare_fb, }; int mcde_display_init(struct drm_device *drm) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c index 92141a19681b..c95ceb400b07 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c @@ -6,10 +6,10 @@ #include #include -#include #include +#include +#include #include -#include #include "mtk_drm_crtc.h" #include "mtk_drm_ddp_comp.h" @@ -216,7 +216,7 @@ static void mtk_plane_atomic_update(struct drm_plane *plane, } static const struct drm_plane_helper_funcs mtk_plane_helper_funcs = { - .prepare_fb = drm_gem_fb_prepare_fb, + .prepare_fb = drm_gem_plane_helper_prepare_fb, .atomic_check = mtk_plane_atomic_check, .atomic_update = mtk_plane_atomic_update, .atomic_disable = mtk_plane_atomic_disable, diff --git a/drivers/gpu/drm/meson/meson_overlay.c b/drivers/gpu/drm/meson/meson_overlay.c index 1ffbbecafa22..be6ca49e20b0 100644 --- a/drivers/gpu/drm/meson/meson_overlay.c +++ b/drivers/gpu/drm/meson/meson_overlay.c @@ -10,11 +10,11 @@ #include #include #include +#include #include -#include +#include #include -#include -#include +#include #include "meson_overlay.h" #include "meson_registers.h" @@ -742,7 +742,7 @@ static const struct drm_plane_helper_funcs meson_overlay_helper_funcs = { .atomic_check = meson_overlay_atomic_check, .atomic_disable = meson_overlay_atomic_disable, .atomic_update = meson_overlay_atomic_update, - .prepare_fb = drm_gem_fb_prepare_fb, + .prepare_fb = drm_gem_plane_helper_prepare_fb, }; static bool meson_overlay_format_mod_supported(struct drm_plane *plane, diff --git a/drivers/gpu/drm/meson/meson_plane.c b/drivers/gpu/drm/meson/meson_plane.c index 35338ed18209..b8309d8fc277 100644 --- a/drivers/gpu/drm/meson/meson_plane.c +++ b/drivers/gpu/drm/meson/meson_plane.c @@ -16,8 +16,8 @@ #include #include #include +#include #include -#include #include #include "meson_plane.h" @@ -417,7 +417,7 @@ static const struct drm_plane_helper_funcs meson_plane_helper_funcs = { .atomic_check = meson_plane_atomic_check, .atomic_disable = meson_plane_atomic_disable, .atomic_update = meson_plane_atomic_update, - .prepare_fb = drm_gem_fb_prepare_fb, + .prepare_fb = drm_gem_plane_helper_prepare_fb, }; static bool meson_plane_format_mod_supported(struct drm_plane *plane, diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c index bc0231a50132..40eb5c911e3c 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c @@ -13,7 +13,7 @@ #include #include #include -#include +#include #include "msm_drv.h" #include "dpu_kms.h" @@ -892,7 +892,7 @@ static int dpu_plane_prepare_fb(struct drm_plane *plane, * we can use msm_atomic_prepare_fb() instead of doing the * implicit fence and fb prepare by hand here. */ - drm_gem_fb_prepare_fb(plane, new_state); + drm_gem_plane_helper_prepare_fb(plane, new_state); if (pstate->aspace) { ret = msm_framebuffer_prepare(new_state->fb, diff --git a/drivers/gpu/drm/msm/msm_atomic.c b/drivers/gpu/drm/msm/msm_atomic.c index 6a326761dc4a..e9c6544b6a01 100644 --- a/drivers/gpu/drm/msm/msm_atomic.c +++ b/drivers/gpu/drm/msm/msm_atomic.c @@ -5,7 +5,7 @@ */ #include -#include +#include #include #include "msm_atomic_trace.h" @@ -22,7 +22,7 @@ int msm_atomic_prepare_fb(struct drm_plane *plane, if (!new_state->fb) return 0; - drm_gem_fb_prepare_fb(plane, new_state); + drm_gem_plane_helper_prepare_fb(plane, new_state); return msm_framebuffer_prepare(new_state->fb, kms->aspace); } diff --git a/drivers/gpu/drm/mxsfb/mxsfb_kms.c b/drivers/gpu/drm/mxsfb/mxsfb_kms.c index 3e1bb0aefb87..7c19ec5384d4 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_kms.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_kms.c @@ -21,8 +21,8 @@ #include #include #include +#include #include -#include #include #include #include @@ -495,13 +495,13 @@ static bool mxsfb_format_mod_supported(struct drm_plane *plane, } static const struct drm_plane_helper_funcs mxsfb_plane_primary_helper_funcs = { - .prepare_fb = drm_gem_fb_prepare_fb, + .prepare_fb = drm_gem_plane_helper_prepare_fb, .atomic_check = mxsfb_plane_atomic_check, .atomic_update = mxsfb_plane_primary_atomic_update, }; static const struct drm_plane_helper_funcs mxsfb_plane_overlay_helper_funcs = { - .prepare_fb = drm_gem_fb_prepare_fb, + .prepare_fb = drm_gem_plane_helper_prepare_fb, .atomic_check = mxsfb_plane_atomic_check, .atomic_update = mxsfb_plane_overlay_atomic_update, }; diff --git a/drivers/gpu/drm/pl111/pl111_display.c b/drivers/gpu/drm/pl111/pl111_display.c index 69c02e7c82b7..6fd7f13f1aca 100644 --- a/drivers/gpu/drm/pl111/pl111_display.c +++ b/drivers/gpu/drm/pl111/pl111_display.c @@ -17,8 +17,8 @@ #include #include +#include #include -#include #include #include "pl111_drm.h" @@ -440,7 +440,7 @@ static struct drm_simple_display_pipe_funcs pl111_display_funcs = { .enable = pl111_display_enable, .disable = pl111_display_disable, .update = pl111_display_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, + .prepare_fb = drm_gem_simple_display_pipe_prepare_fb, }; static int pl111_clk_div_choose_div(struct clk_hw *hw, unsigned long rate, diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c index 53221d8473c1..336ba0648a79 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c @@ -11,8 +11,8 @@ #include #include #include +#include #include -#include #include #include #include @@ -236,7 +236,7 @@ static int rcar_du_vsp_plane_prepare_fb(struct drm_plane *plane, if (ret < 0) return ret; - return drm_gem_fb_prepare_fb(plane, state); + return drm_gem_plane_helper_prepare_fb(plane, state); } void rcar_du_vsp_unmap_fb(struct rcar_du_vsp *vsp, struct drm_framebuffer *fb, diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index 8d15cabdcb02..daea2493bfb8 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include #include @@ -1096,7 +1097,7 @@ static const struct drm_plane_helper_funcs plane_helper_funcs = { .atomic_disable = vop_plane_atomic_disable, .atomic_async_check = vop_plane_atomic_async_check, .atomic_async_update = vop_plane_atomic_async_update, - .prepare_fb = drm_gem_fb_prepare_fb, + .prepare_fb = drm_gem_plane_helper_prepare_fb, }; static const struct drm_plane_funcs vop_plane_funcs = { diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c index 6f3b523e16e8..0967cd9190a2 100644 --- a/drivers/gpu/drm/stm/ltdc.c +++ b/drivers/gpu/drm/stm/ltdc.c @@ -26,8 +26,8 @@ #include #include #include +#include #include -#include #include #include #include @@ -940,7 +940,7 @@ static const struct drm_plane_funcs ltdc_plane_funcs = { }; static const struct drm_plane_helper_funcs ltdc_plane_helper_funcs = { - .prepare_fb = drm_gem_fb_prepare_fb, + .prepare_fb = drm_gem_plane_helper_prepare_fb, .atomic_check = ltdc_plane_atomic_check, .atomic_update = ltdc_plane_atomic_update, .atomic_disable = ltdc_plane_atomic_disable, diff --git a/drivers/gpu/drm/sun4i/sun4i_layer.c b/drivers/gpu/drm/sun4i/sun4i_layer.c index acfbfd4463a1..259c10b85ee7 100644 --- a/drivers/gpu/drm/sun4i/sun4i_layer.c +++ b/drivers/gpu/drm/sun4i/sun4i_layer.c @@ -7,7 +7,7 @@ */ #include -#include +#include #include #include "sun4i_backend.h" @@ -122,7 +122,7 @@ static bool sun4i_layer_format_mod_supported(struct drm_plane *plane, } static const struct drm_plane_helper_funcs sun4i_backend_layer_helper_funcs = { - .prepare_fb = drm_gem_fb_prepare_fb, + .prepare_fb = drm_gem_plane_helper_prepare_fb, .atomic_disable = sun4i_backend_layer_atomic_disable, .atomic_update = sun4i_backend_layer_atomic_update, }; diff --git a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c index e64f30595f64..a78d2cf00012 100644 --- a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c +++ b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c @@ -14,8 +14,8 @@ #include #include #include +#include #include -#include #include #include @@ -322,7 +322,7 @@ static void sun8i_ui_layer_atomic_update(struct drm_plane *plane, } static const struct drm_plane_helper_funcs sun8i_ui_layer_helper_funcs = { - .prepare_fb = drm_gem_fb_prepare_fb, + .prepare_fb = drm_gem_plane_helper_prepare_fb, .atomic_check = sun8i_ui_layer_atomic_check, .atomic_disable = sun8i_ui_layer_atomic_disable, .atomic_update = sun8i_ui_layer_atomic_update, diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c index 8abb59e2f0c0..f4bc8320fa13 100644 --- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c +++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c @@ -7,8 +7,8 @@ #include #include #include +#include #include -#include #include #include @@ -426,7 +426,7 @@ static void sun8i_vi_layer_atomic_update(struct drm_plane *plane, } static const struct drm_plane_helper_funcs sun8i_vi_layer_helper_funcs = { - .prepare_fb = drm_gem_fb_prepare_fb, + .prepare_fb = drm_gem_plane_helper_prepare_fb, .atomic_check = sun8i_vi_layer_atomic_check, .atomic_disable = sun8i_vi_layer_atomic_disable, .atomic_update = sun8i_vi_layer_atomic_update, diff --git a/drivers/gpu/drm/tegra/plane.c b/drivers/gpu/drm/tegra/plane.c index 539d14935728..19e8847a164b 100644 --- a/drivers/gpu/drm/tegra/plane.c +++ b/drivers/gpu/drm/tegra/plane.c @@ -8,7 +8,7 @@ #include #include #include -#include +#include #include #include "dc.h" @@ -198,7 +198,7 @@ int tegra_plane_prepare_fb(struct drm_plane *plane, if (!state->fb) return 0; - drm_gem_fb_prepare_fb(plane, state); + drm_gem_plane_helper_prepare_fb(plane, state); return tegra_dc_pin(dc, to_tegra_plane_state(state)); } diff --git a/drivers/gpu/drm/tidss/tidss_plane.c b/drivers/gpu/drm/tidss/tidss_plane.c index 35067ae674ea..795d24b44091 100644 --- a/drivers/gpu/drm/tidss/tidss_plane.c +++ b/drivers/gpu/drm/tidss/tidss_plane.c @@ -10,7 +10,7 @@ #include #include #include -#include +#include #include "tidss_crtc.h" #include "tidss_dispc.h" @@ -151,7 +151,7 @@ static void drm_plane_destroy(struct drm_plane *plane) } static const struct drm_plane_helper_funcs tidss_plane_helper_funcs = { - .prepare_fb = drm_gem_fb_prepare_fb, + .prepare_fb = drm_gem_plane_helper_prepare_fb, .atomic_check = tidss_plane_atomic_check, .atomic_update = tidss_plane_atomic_update, .atomic_disable = tidss_plane_atomic_disable, diff --git a/drivers/gpu/drm/tiny/hx8357d.c b/drivers/gpu/drm/tiny/hx8357d.c index c6525cd02bc2..3e2c2868a363 100644 --- a/drivers/gpu/drm/tiny/hx8357d.c +++ b/drivers/gpu/drm/tiny/hx8357d.c @@ -19,8 +19,8 @@ #include #include #include +#include #include -#include #include #include #include @@ -184,7 +184,7 @@ static const struct drm_simple_display_pipe_funcs hx8357d_pipe_funcs = { .enable = yx240qv29_enable, .disable = mipi_dbi_pipe_disable, .update = mipi_dbi_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, + .prepare_fb = drm_gem_simple_display_pipe_prepare_fb, }; static const struct drm_display_mode yx350hv15_mode = { diff --git a/drivers/gpu/drm/tiny/ili9225.c b/drivers/gpu/drm/tiny/ili9225.c index 8e98962db5a2..6b87df19eec1 100644 --- a/drivers/gpu/drm/tiny/ili9225.c +++ b/drivers/gpu/drm/tiny/ili9225.c @@ -22,8 +22,8 @@ #include #include #include +#include #include -#include #include #include #include @@ -328,7 +328,7 @@ static const struct drm_simple_display_pipe_funcs ili9225_pipe_funcs = { .enable = ili9225_pipe_enable, .disable = ili9225_pipe_disable, .update = ili9225_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, + .prepare_fb = drm_gem_simple_display_pipe_prepare_fb, }; static const struct drm_display_mode ili9225_mode = { diff --git a/drivers/gpu/drm/tiny/ili9341.c b/drivers/gpu/drm/tiny/ili9341.c index 6ce97f0698eb..a97f3f70e4a6 100644 --- a/drivers/gpu/drm/tiny/ili9341.c +++ b/drivers/gpu/drm/tiny/ili9341.c @@ -18,8 +18,8 @@ #include #include #include +#include #include -#include #include #include #include @@ -140,7 +140,7 @@ static const struct drm_simple_display_pipe_funcs ili9341_pipe_funcs = { .enable = yx240qv29_enable, .disable = mipi_dbi_pipe_disable, .update = mipi_dbi_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, + .prepare_fb = drm_gem_simple_display_pipe_prepare_fb, }; static const struct drm_display_mode yx240qv29_mode = { diff --git a/drivers/gpu/drm/tiny/ili9486.c b/drivers/gpu/drm/tiny/ili9486.c index d7ce40eb166a..6422a7f67079 100644 --- a/drivers/gpu/drm/tiny/ili9486.c +++ b/drivers/gpu/drm/tiny/ili9486.c @@ -17,8 +17,8 @@ #include #include #include +#include #include -#include #include #include #include @@ -153,7 +153,7 @@ static const struct drm_simple_display_pipe_funcs waveshare_pipe_funcs = { .enable = waveshare_enable, .disable = mipi_dbi_pipe_disable, .update = mipi_dbi_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, + .prepare_fb = drm_gem_simple_display_pipe_prepare_fb, }; static const struct drm_display_mode waveshare_mode = { diff --git a/drivers/gpu/drm/tiny/mi0283qt.c b/drivers/gpu/drm/tiny/mi0283qt.c index ff77f983f803..dc76fe53aa72 100644 --- a/drivers/gpu/drm/tiny/mi0283qt.c +++ b/drivers/gpu/drm/tiny/mi0283qt.c @@ -16,8 +16,8 @@ #include #include #include +#include #include -#include #include #include #include @@ -144,7 +144,7 @@ static const struct drm_simple_display_pipe_funcs mi0283qt_pipe_funcs = { .enable = mi0283qt_enable, .disable = mipi_dbi_pipe_disable, .update = mipi_dbi_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, + .prepare_fb = drm_gem_simple_display_pipe_prepare_fb, }; static const struct drm_display_mode mi0283qt_mode = { diff --git a/drivers/gpu/drm/tiny/repaper.c b/drivers/gpu/drm/tiny/repaper.c index 11c602fc9897..2cee07a2e00b 100644 --- a/drivers/gpu/drm/tiny/repaper.c +++ b/drivers/gpu/drm/tiny/repaper.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include #include @@ -860,7 +861,7 @@ static const struct drm_simple_display_pipe_funcs repaper_pipe_funcs = { .enable = repaper_pipe_enable, .disable = repaper_pipe_disable, .update = repaper_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, + .prepare_fb = drm_gem_simple_display_pipe_prepare_fb, }; static int repaper_connector_get_modes(struct drm_connector *connector) diff --git a/drivers/gpu/drm/tiny/st7586.c b/drivers/gpu/drm/tiny/st7586.c index ff5cf60f4bd7..7d216fe9267f 100644 --- a/drivers/gpu/drm/tiny/st7586.c +++ b/drivers/gpu/drm/tiny/st7586.c @@ -19,8 +19,8 @@ #include #include #include +#include #include -#include #include #include #include @@ -268,7 +268,7 @@ static const struct drm_simple_display_pipe_funcs st7586_pipe_funcs = { .enable = st7586_pipe_enable, .disable = st7586_pipe_disable, .update = st7586_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, + .prepare_fb = drm_gem_simple_display_pipe_prepare_fb, }; static const struct drm_display_mode st7586_mode = { diff --git a/drivers/gpu/drm/tiny/st7735r.c b/drivers/gpu/drm/tiny/st7735r.c index faaba0a033ea..df8872d62cdd 100644 --- a/drivers/gpu/drm/tiny/st7735r.c +++ b/drivers/gpu/drm/tiny/st7735r.c @@ -19,8 +19,8 @@ #include #include #include +#include #include -#include #include #include @@ -136,7 +136,7 @@ static const struct drm_simple_display_pipe_funcs st7735r_pipe_funcs = { .enable = st7735r_pipe_enable, .disable = mipi_dbi_pipe_disable, .update = mipi_dbi_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, + .prepare_fb = drm_gem_simple_display_pipe_prepare_fb, }; static const struct st7735r_cfg jd_t18003_t01_cfg = { diff --git a/drivers/gpu/drm/tve200/tve200_display.c b/drivers/gpu/drm/tve200/tve200_display.c index cb0e837d3dba..50e1fb71869f 100644 --- a/drivers/gpu/drm/tve200/tve200_display.c +++ b/drivers/gpu/drm/tve200/tve200_display.c @@ -17,8 +17,8 @@ #include #include +#include #include -#include #include #include @@ -316,7 +316,7 @@ static const struct drm_simple_display_pipe_funcs tve200_display_funcs = { .enable = tve200_display_enable, .disable = tve200_display_disable, .update = tve200_display_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, + .prepare_fb = drm_gem_simple_display_pipe_prepare_fb, .enable_vblank = tve200_display_enable_vblank, .disable_vblank = tve200_display_disable_vblank, }; diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c index 7322169c0682..1a1d6609b80f 100644 --- a/drivers/gpu/drm/vc4/vc4_plane.c +++ b/drivers/gpu/drm/vc4/vc4_plane.c @@ -20,7 +20,7 @@ #include #include #include -#include +#include #include #include "uapi/drm/vc4_drm.h" @@ -1250,7 +1250,7 @@ static int vc4_prepare_fb(struct drm_plane *plane, bo = to_vc4_bo(&drm_fb_cma_get_gem_obj(state->fb, 0)->base); - drm_gem_fb_prepare_fb(plane, state); + drm_gem_plane_helper_prepare_fb(plane, state); if (plane->state->fb == state->fb) return 0; diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c index 0824327cc860..2a02334b72ac 100644 --- a/drivers/gpu/drm/vkms/vkms_plane.c +++ b/drivers/gpu/drm/vkms/vkms_plane.c @@ -5,6 +5,7 @@ #include #include #include +#include #include #include #include @@ -159,7 +160,7 @@ static int vkms_prepare_fb(struct drm_plane *plane, if (ret) DRM_ERROR("vmap failed: %d\n", ret); - return drm_gem_fb_prepare_fb(plane, state); + return drm_gem_plane_helper_prepare_fb(plane, state); } static void vkms_cleanup_fb(struct drm_plane *plane, diff --git a/drivers/gpu/drm/xen/xen_drm_front_kms.c b/drivers/gpu/drm/xen/xen_drm_front_kms.c index ef11b1e4de39..371202ebe900 100644 --- a/drivers/gpu/drm/xen/xen_drm_front_kms.c +++ b/drivers/gpu/drm/xen/xen_drm_front_kms.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -301,7 +302,7 @@ static const struct drm_simple_display_pipe_funcs display_funcs = { .mode_valid = display_mode_valid, .enable = display_enable, .disable = display_disable, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, + .prepare_fb = drm_gem_simple_display_pipe_prepare_fb, .check = display_check, .update = display_update, }; diff --git a/include/drm/drm_gem_atomic_helper.h b/include/drm/drm_gem_atomic_helper.h index 7abf40bdab3d..cfc5adee3d13 100644 --- a/include/drm/drm_gem_atomic_helper.h +++ b/include/drm/drm_gem_atomic_helper.h @@ -9,6 +9,14 @@ struct drm_simple_display_pipe; +/* + * Plane Helpers + */ + +int drm_gem_plane_helper_prepare_fb(struct drm_plane *plane, struct drm_plane_state *state); +int drm_gem_simple_display_pipe_prepare_fb(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *plane_state); + /* * Helpers for planes with shadow buffers */ diff --git a/include/drm/drm_gem_framebuffer_helper.h b/include/drm/drm_gem_framebuffer_helper.h index 6b013154911d..6bdffc7aa124 100644 --- a/include/drm/drm_gem_framebuffer_helper.h +++ b/include/drm/drm_gem_framebuffer_helper.h @@ -9,9 +9,6 @@ struct drm_framebuffer; struct drm_framebuffer_funcs; struct drm_gem_object; struct drm_mode_fb_cmd2; -struct drm_plane; -struct drm_plane_state; -struct drm_simple_display_pipe; #define AFBC_VENDOR_AND_TYPE_MASK GENMASK_ULL(63, 52) @@ -44,8 +41,4 @@ int drm_gem_fb_afbc_init(struct drm_device *dev, const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_afbc_framebuffer *afbc_fb); -int drm_gem_fb_prepare_fb(struct drm_plane *plane, - struct drm_plane_state *state); -int drm_gem_fb_simple_display_pipe_prepare_fb(struct drm_simple_display_pipe *pipe, - struct drm_plane_state *plane_state); #endif diff --git a/include/drm/drm_modeset_helper_vtables.h b/include/drm/drm_modeset_helper_vtables.h index eb706342861d..df77ed843dd6 100644 --- a/include/drm/drm_modeset_helper_vtables.h +++ b/include/drm/drm_modeset_helper_vtables.h @@ -1179,7 +1179,7 @@ struct drm_plane_helper_funcs { * members in the plane structure. * * Drivers which always have their buffers pinned should use - * drm_gem_fb_prepare_fb() for this hook. + * drm_gem_plane_helper_prepare_fb() for this hook. * * The helpers will call @cleanup_fb with matching arguments for every * successful call to this hook. diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h index 95ab14a4336a..1294610e84f4 100644 --- a/include/drm/drm_plane.h +++ b/include/drm/drm_plane.h @@ -79,8 +79,8 @@ struct drm_plane_state { * preserved. * * Drivers should store any implicit fence in this from their - * &drm_plane_helper_funcs.prepare_fb callback. See drm_gem_fb_prepare_fb() - * and drm_gem_fb_simple_display_pipe_prepare_fb() for suitable helpers. + * &drm_plane_helper_funcs.prepare_fb callback. See drm_gem_plane_helper_prepare_fb() + * and drm_gem_simple_display_pipe_prepare_fb() for suitable helpers. */ struct dma_fence *fence; diff --git a/include/drm/drm_simple_kms_helper.h b/include/drm/drm_simple_kms_helper.h index 40b34573249f..ef9944e9c5fc 100644 --- a/include/drm/drm_simple_kms_helper.h +++ b/include/drm/drm_simple_kms_helper.h @@ -117,7 +117,7 @@ struct drm_simple_display_pipe_funcs { * more details. * * Drivers which always have their buffers pinned should use - * drm_gem_fb_simple_display_pipe_prepare_fb() for this hook. + * drm_gem_simple_display_pipe_prepare_fb() for this hook. */ int (*prepare_fb)(struct drm_simple_display_pipe *pipe, struct drm_plane_state *plane_state);