From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5D4F023CE; Wed, 7 Aug 2024 15:02:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723042929; cv=none; b=SwCXS6xgToUHdKey+oCYSkzjFiMjD3uoTpPElhlzxeSdI1NpHG1yowj1/ccerAIzKTrCv4kL96OEvnl2WWnoLSRyUv/8InzdSj3voBMG/1YkX4oSSEG3TACjvmwKrCqJvsSRH4ZXoji9QgfRnf0TYnMe8a26YuQPZj3g51zfQGQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723042929; c=relaxed/simple; bh=2ZqsQDzuFTqByRYneP2KY+RM7q2g9Ay3qHIM8g3nJWU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=cMy85HelENlbeaXGRnBr71HdefJEraKhShtYttPiMufV1xioQn4gP9zZpgSN3F5xCcFkJdl38GDcPS/F/of/eUo37BYswGNU89tGx2kv3hiuY/MyG82p811Xt/8b2aadP7rN3rcm728eh/V2hoa5MwEUNC0rwMisMSiBqFSKhKg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=PAscgH5P; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="PAscgH5P" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E1E49C32781; Wed, 7 Aug 2024 15:02:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1723042929; bh=2ZqsQDzuFTqByRYneP2KY+RM7q2g9Ay3qHIM8g3nJWU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PAscgH5P8Q391zg47eeaEPCi7yg9f3XAApgjzRWhcepejUteRCJwyxEfqLkPv9ETH bRsxNj/0Ljb/S1EqIn+K/FuXAuSpDZgDMfB9tMlx3sziXuk2WWJUFqYJ7BxzWWc2FY Kj6H1rKruDpmnEUCcgtLh0uCP3aEy6hgNHwtiKdk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ian Forbes , Zack Rusin , Sasha Levin Subject: [PATCH 6.10 027/123] drm/vmwgfx: Trigger a modeset when the screen moves Date: Wed, 7 Aug 2024 16:59:06 +0200 Message-ID: <20240807150021.697119196@linuxfoundation.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240807150020.790615758@linuxfoundation.org> References: <20240807150020.790615758@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ian Forbes [ Upstream commit 75c3e8a26a35d4f3eee299b3cc7e465f166f4e2d ] When multi-monitor is cycled the X,Y position of the Screen Target will likely change but the resolution will not. We need to trigger a modeset when this occurs in order to recreate the Screen Target with the correct X,Y position. Fixes a bug where multiple displays are shown in a single scrollable host window rather than in 2+ windows on separate host displays. Fixes: 426826933109 ("drm/vmwgfx: Filter modes which exceed graphics memory") Signed-off-by: Ian Forbes Signed-off-by: Zack Rusin Link: https://patchwork.freedesktop.org/patch/msgid/20240624205951.23343-1-ian.forbes@broadcom.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 29 +++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c index a04e0736318da..9becd71bc93bc 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c @@ -877,6 +877,32 @@ vmw_stdu_connector_mode_valid(struct drm_connector *connector, return MODE_OK; } +/* + * Trigger a modeset if the X,Y position of the Screen Target changes. + * This is needed when multi-mon is cycled. The original Screen Target will have + * the same mode but its relative X,Y position in the topology will change. + */ +static int vmw_stdu_connector_atomic_check(struct drm_connector *conn, + struct drm_atomic_state *state) +{ + struct drm_connector_state *conn_state; + struct vmw_screen_target_display_unit *du; + struct drm_crtc_state *new_crtc_state; + + conn_state = drm_atomic_get_connector_state(state, conn); + du = vmw_connector_to_stdu(conn); + + if (!conn_state->crtc) + return 0; + + new_crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc); + if (du->base.gui_x != du->base.set_gui_x || + du->base.gui_y != du->base.set_gui_y) + new_crtc_state->mode_changed = true; + + return 0; +} + static const struct drm_connector_funcs vmw_stdu_connector_funcs = { .dpms = vmw_du_connector_dpms, .detect = vmw_du_connector_detect, @@ -891,7 +917,8 @@ static const struct drm_connector_funcs vmw_stdu_connector_funcs = { static const struct drm_connector_helper_funcs vmw_stdu_connector_helper_funcs = { .get_modes = vmw_connector_get_modes, - .mode_valid = vmw_stdu_connector_mode_valid + .mode_valid = vmw_stdu_connector_mode_valid, + .atomic_check = vmw_stdu_connector_atomic_check, }; -- 2.43.0