From patchwork Wed Apr 29 12:48:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Noralf_Tr=C3=B8nnes?= X-Patchwork-Id: 11516975 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3B75881 for ; Wed, 29 Apr 2020 12:58:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 235F821927 for ; Wed, 29 Apr 2020 12:58:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727064AbgD2M6A (ORCPT ); Wed, 29 Apr 2020 08:58:00 -0400 Received: from asav21.altibox.net ([109.247.116.8]:58746 "EHLO asav21.altibox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726968AbgD2M57 (ORCPT ); Wed, 29 Apr 2020 08:57:59 -0400 Received: from localhost.localdomain (unknown [81.166.168.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: noralf.tronnes@ebnett.no) by asav21.altibox.net (Postfix) with ESMTPSA id E178D800EA; Wed, 29 Apr 2020 14:48:50 +0200 (CEST) From: =?utf-8?q?Noralf_Tr=C3=B8nnes?= To: dri-devel@lists.freedesktop.org, linux-usb@vger.kernel.org Cc: =?utf-8?q?Noralf_Tr=C3=B8nnes?= Subject: [PATCH 04/10] drm/client: Add drm_client_framebuffer_flush() Date: Wed, 29 Apr 2020 14:48:24 +0200 Message-Id: <20200429124830.27475-5-noralf@tronnes.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20200429124830.27475-1-noralf@tronnes.org> References: <20200429124830.27475-1-noralf@tronnes.org> MIME-Version: 1.0 X-CMAE-Score: 0 X-CMAE-Analysis: v=2.3 cv=AvXAIt1P c=1 sm=1 tr=0 a=OYZzhG0JTxDrWp/F2OJbnw==:117 a=OYZzhG0JTxDrWp/F2OJbnw==:17 a=IkcTkHD0fZMA:10 a=M51BFTxLslgA:10 a=SJz97ENfAAAA:8 a=0jVh_8K4HvQRDTyCFMcA:9 a=QEXdDO2ut3YA:10 a=vFet0B0WnEQeilDPIY6i:22 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Some drivers need explicit flushing of buffer changes, add a function that does that. Signed-off-by: Noralf Trønnes Reviewed-by: Sam Ravnborg --- drivers/gpu/drm/drm_client.c | 31 +++++++++++++++++++++++++++++++ include/drm/drm_client.h | 1 + 2 files changed, 32 insertions(+) diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c index cb5ee9f1ffaa..8dbc2ecdcaea 100644 --- a/drivers/gpu/drm/drm_client.c +++ b/drivers/gpu/drm/drm_client.c @@ -483,6 +483,37 @@ void drm_client_framebuffer_delete(struct drm_client_buffer *buffer) } EXPORT_SYMBOL(drm_client_framebuffer_delete); +/** + * drm_client_framebuffer_flush - Manually flush client framebuffer + * @buffer: DRM client buffer (can be NULL) + * @rect: Damage rectangle (if NULL flushes all) + * + * This calls &drm_framebuffer_funcs->dirty (if present) to flush buffer changes + * for drivers that need it. + * + * Returns: + * Zero on success or negative error code on failure. + */ +int drm_client_framebuffer_flush(struct drm_client_buffer *buffer, struct drm_rect *rect) +{ + struct drm_clip_rect clip_rect, *clip = NULL; + + if (!buffer || !buffer->fb || !buffer->fb->funcs->dirty) + return 0; + + if (rect) { + clip = &clip_rect; + clip->x1 = rect->x1; + clip->y1 = rect->y1; + clip->x2 = rect->x2; + clip->y2 = rect->y2; + } + + return buffer->fb->funcs->dirty(buffer->fb, buffer->client->file, + 0, 0, clip, clip ? 1 : 0); +} +EXPORT_SYMBOL(drm_client_framebuffer_flush); + #ifdef CONFIG_DEBUG_FS static int drm_client_debugfs_internal_clients(struct seq_file *m, void *data) { diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h index bbb5689fa9a8..6ef5364d6dfb 100644 --- a/include/drm/drm_client.h +++ b/include/drm/drm_client.h @@ -156,6 +156,7 @@ struct drm_client_buffer { struct drm_client_buffer * drm_client_framebuffer_create(struct drm_client_dev *client, u32 width, u32 height, u32 format); void drm_client_framebuffer_delete(struct drm_client_buffer *buffer); +int drm_client_framebuffer_flush(struct drm_client_buffer *buffer, struct drm_rect *rect); void *drm_client_buffer_vmap(struct drm_client_buffer *buffer); void drm_client_buffer_vunmap(struct drm_client_buffer *buffer);