From nobody Fri Dec 19 18:43:22 2025 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 195D320CE07; Sun, 24 Mar 2024 23:07:24 +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=1711321645; cv=none; b=exs1Nyc6qHopaz0csjrIFdbIvLBo/V0VHLTChXPhmQfJVj+ZaipcptQjWrZzg2BfGUHJKI+43meFGp8XkGor4K1CZnQac9yUT0qaNFdReVWT8xczBwzXMq3nW47LD256tDQZnO6hZ9a4D8jJz6ecGToJ6+0ydpFCsGOcuN0F38o= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711321645; c=relaxed/simple; bh=NxVz+WguTMB6Coo2YUZwzcntSivhyOF+Rdca8TF9s9s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=rI9NOWf45On/+tu0SsAv/eStO2EGLZsvE3mgWe2OJpwrEU6/40/Fxk1n/YUbtyM1HMdL8egZxCBslui2fdRznVEKoo+CLp5rMAB80GDq4gI6a6VMv+jNez+oh4RAgtA99b9gtzaD8NwJzRJ9Ny9ID/oWRMakT0Mz6+VawuvPZvE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=brxnKIKn; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="brxnKIKn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 40ED4C433C7; Sun, 24 Mar 2024 23:07:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711321644; bh=NxVz+WguTMB6Coo2YUZwzcntSivhyOF+Rdca8TF9s9s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=brxnKIKnJPnbvcBpAQea+FyMh3phdY+4cmR7gIfU4yks7+7HjOz1OlkvWFy2AdDka Zai/cxWF4VrXVG1VS8Ni05WgOJFpKLLnCz5+oLkwbCNeEECaAyBLRSSbO6shxXm6l3 pLfhPY6yqfKYjbbIiY3LmXg/SORMsUvybQ/HeZx32c1/TFm2T60aYnbgzxa1HT5PQJ SzHMaBm/LbGNCOTJC4lyuXJEVLj5ek0bqEhnZHTmRXoTO0zXEuYlgMUJyqb90NVYdl BkFovA6b3Zhhra3DqHt5aKw49qHKGuPcukV/HIwmNcoQ6PSMBBAAifLlgp418kc/4R s6QbpDUPgmCQg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Martin Krastev , Maaz Mombasawala , Zack Rusin , Sasha Levin Subject: [PATCH 6.6 373/638] drm/vmwgfx: Fix vmw_du_get_cursor_mob fencing of newly-created MOBs Date: Sun, 24 Mar 2024 18:56:50 -0400 Message-ID: <20240324230116.1348576-374-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240324230116.1348576-1-sashal@kernel.org> References: <20240324230116.1348576-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Martin Krastev [ Upstream commit ed96cf7ad590989b009d6da5cd26387d995dac13 ] The fencing of MOB creation used in vmw_du_get_cursor_mob was incompatible with register-based device communication employed by this routine. As a result cursor MOB creation was racy, leading to potentially broken/missing mouse cursor on desktops using CursorMob device feature. Fixes: 53bc3f6fb6b3 ("drm/vmwgfx: Clean up cursor mobs") Signed-off-by: Martin Krastev Reviewed-by: Maaz Mombasawala Reviewed-by: Zack Rusin Signed-off-by: Zack Rusin Link: https://patchwork.freedesktop.org/patch/msgid/20240126200804.732454-5= -zack.rusin@broadcom.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/v= mwgfx_kms.c index 818b7f109f538..b51578918cf8d 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -272,6 +272,7 @@ static int vmw_du_get_cursor_mob(struct vmw_cursor_plan= e *vcp, u32 size =3D vmw_du_cursor_mob_size(vps->base.crtc_w, vps->base.crtc_h); u32 i; u32 cursor_max_dim, mob_max_size; + struct vmw_fence_obj *fence =3D NULL; int ret; =20 if (!dev_priv->has_mob || @@ -313,7 +314,15 @@ static int vmw_du_get_cursor_mob(struct vmw_cursor_pla= ne *vcp, if (ret !=3D 0) goto teardown; =20 - vmw_bo_fence_single(&vps->cursor.bo->tbo, NULL); + ret =3D vmw_execbuf_fence_commands(NULL, dev_priv, &fence, NULL); + if (ret !=3D 0) { + ttm_bo_unreserve(&vps->cursor.bo->tbo); + goto teardown; + } + + dma_fence_wait(&fence->base, false); + dma_fence_put(&fence->base); + ttm_bo_unreserve(&vps->cursor.bo->tbo); return 0; =20 --=20 2.43.0