From patchwork Wed Sep 27 15:35:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 13401243 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3259EE82CA7 for ; Wed, 27 Sep 2023 15:41:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=QBjMcOzwv/ToNznwu7CAdZvaVSSZEr6JLuCrIbf2sV4=; b=a223X5gTjRzQSn z/4Tciw6j6H9E6ZPmIuqPn7cEqpIWFgVw4tvvGYsajgepgxzfIGbXODvRsStfsOqcDBgcuUQg/bwu Q/Qc9Fp4cD/w3ZuPA9KmyqEi0v83B1rhCRqovHbjogLh4LbbY9rjYgeNndNPSSQL1LWy9O4TTHFKv zNfCo/5nkY6gHj/kunXBTqR235F6upcyRRJD41I0SYUgHtMmt4eBtIGUGyTyWHV9La58JMRmcTyls HxsJHwCNNtgyCwX5PsYRIJgzosg3VR1cWdgjKp8tfMSHin1Ny6SMG0v8fMatVdZ78lr0vlGubaHS1 0VvfmAWeS4pqfJLOWkYw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qlWej-001L41-1Z; Wed, 27 Sep 2023 15:40:53 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qlWag-001GnS-2k; Wed, 27 Sep 2023 15:36:43 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=2qWN9gcWE1cCd4QDbOtoUFT3dABxhAehI8TgvGuMY4I=; b=C3PIded8ZqHbIwLbFRzlavR0Tc VqPo8ZYfk//E4x+GtfdlWIS+YEfoU72kbRLVjcVWgWT2AKuDZNcLXNWd9uPrLnuN5rJuwTqzMYznh 36vs3LSz3h7SSYWvS5YjKiUvi/uJK2TIR7n0zS675XsxjH6pfAJqDcn800w1G9RjWTbrz8iZAgwaf ki9+Yy0valN6HwzNEgXKQ+ul2pjpX/VPA4CAZSicFFVfojpFL9YuBxEcrWIZKuFNnBgvUXw2enN0f yokLn89OyULOJeujmytalKx8OxxGTejujXdJX3PT73dGmW8sdQoCYpiF2M/6D23wUYBC2wjRoq3eo QutrKUpw==; Received: from madras.collabora.co.uk ([46.235.227.172]) by casper.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1qlWaX-00EeuF-Li; Wed, 27 Sep 2023 15:36:41 +0000 Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:120:3210:672:46bd:3ec7:6cdf]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by madras.collabora.co.uk (Postfix) with ESMTPSA id 1DC526607381; Wed, 27 Sep 2023 16:36:32 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1695828992; bh=Tn/0+SEs92pxnf0JZtLBn6EtBJkC+KjsYnF3S+7Li74=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=l7hvUjhRCDvOCfXpTo+2MjkpJn4DcC9K4yXxmAhH1ri88E6W2bLcmZNcP21AdwLfU 4HhtSPFyBFX4ETWeOuF5us2fENDMrD7axP6qDageUb1fvZqUZis8nrtwOt+EDf/yBt FVN72t4l3bJYRbns8Ehf3KNXbDUHoTDVzXQLUvmWRjRuQTLXAnr4xEaiQLmTYQbv1h zmDpUqjYDOEGKhglbQByAQ2laL2RiWPbT4kSYQ0QC/46/M5KC7zQVY/0LpfQnJbM62 7OZqO4nkGpjZ7z5t6W5ybB5ZSAn6v+obR/jP6Ed1VRGaa/cULLkRsWgmXtUsCmlZS4 9h+pmqY0RrdwA== From: Benjamin Gaignard To: mchehab@kernel.org, tfiga@chromium.org, m.szyprowski@samsung.com, ming.qian@nxp.com, ezequiel@vanguardiasur.com.ar, p.zabel@pengutronix.de, gregkh@linuxfoundation.org, hverkuil-cisco@xs4all.nl, nicolas.dufresne@collabora.com Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-staging@lists.linux.dev, kernel@collabora.com, Benjamin Gaignard Subject: [PATCH v8 50/53] media: core: Free range of buffers Date: Wed, 27 Sep 2023 17:35:55 +0200 Message-Id: <20230927153558.159278-51-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230927153558.159278-1-benjamin.gaignard@collabora.com> References: <20230927153558.159278-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230927_163633_766539_7F99A3D8 X-CRM114-Status: GOOD ( 13.58 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Improve __vb2_queue_free() and __vb2_free_mem() to free range of buffers and not only the last few buffers. Intoduce starting index to be flexible on range and change the loops according to this parameters. Signed-off-by: Benjamin Gaignard --- .../media/common/videobuf2/videobuf2-core.c | 36 ++++++++----------- 1 file changed, 15 insertions(+), 21 deletions(-) diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c index 8d35cf7cef42..3bf455f03461 100644 --- a/drivers/media/common/videobuf2/videobuf2-core.c +++ b/drivers/media/common/videobuf2/videobuf2-core.c @@ -518,13 +518,12 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory, /* * __vb2_free_mem() - release all video buffer memory for a given queue */ -static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers) +static void __vb2_free_mem(struct vb2_queue *q, unsigned int start, unsigned int count) { - unsigned int buffer = 0; - long i = q->max_num_buffers; + unsigned int i; struct vb2_buffer *vb; - for (i = q->max_num_buffers; i >= 0 && buffer < buffers; i--) { + for (i = start; i < q->max_num_buffers && i < start + count; i++) { vb = vb2_get_buffer(q, i); if (!vb) continue; @@ -536,36 +535,32 @@ static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers) __vb2_buf_dmabuf_put(vb); else __vb2_buf_userptr_put(vb); - buffer++; } } /* - * __vb2_queue_free() - free buffers at the end of the queue - video memory and + * __vb2_queue_free() - free count buffers from start index of the queue - video memory and * related information, if no buffers are left return the queue to an * uninitialized state. Might be called even if the queue has already been freed. */ -static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers) +static void __vb2_queue_free(struct vb2_queue *q, unsigned int start, unsigned int count) { - unsigned int buffer; - long i = q->max_num_buffers; + unsigned int i; lockdep_assert_held(&q->mmap_lock); /* Call driver-provided cleanup function for each buffer, if provided */ - for (i = q->max_num_buffers, buffer = 0; i >= 0 && buffer < buffers; i--) { + for (i = start; i < q->max_num_buffers && i < start + count; i++) { struct vb2_buffer *vb = vb2_get_buffer(q, i); if (!vb) continue; - if (vb->planes[0].mem_priv) { + if (vb->planes[0].mem_priv) call_void_vb_qop(vb, buf_cleanup, vb); - buffer++; - } } /* Release video buffer memory */ - __vb2_free_mem(q, buffers); + __vb2_free_mem(q, start, count); #ifdef CONFIG_VIDEO_ADV_DEBUG /* @@ -650,15 +645,14 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers) #endif /* Free vb2 buffers */ - for (i = q->max_num_buffers, buffer = 0; i > 0 && buffer < buffers; i--) { - struct vb2_buffer *vb = vb2_get_buffer(q, buffer); + for (i = start; i < q->max_num_buffers && i < start + count; i++) { + struct vb2_buffer *vb = vb2_get_buffer(q, i); if (!vb) continue; vb2_queue_remove_buffer(vb); kfree(vb); - buffer++; } if (!vb2_get_num_buffers(q)) { @@ -852,7 +846,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory, * queued without ever calling STREAMON. */ __vb2_queue_cancel(q); - __vb2_queue_free(q, q_num_bufs); + __vb2_queue_free(q, 0, q_num_bufs); mutex_unlock(&q->mmap_lock); /* @@ -962,7 +956,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory, * from already queued buffers and it will reset q->memory to * VB2_MEMORY_UNKNOWN. */ - __vb2_queue_free(q, allocated_buffers); + __vb2_queue_free(q, first_index, allocated_buffers); mutex_unlock(&q->mmap_lock); return ret; } @@ -1102,7 +1096,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory, * from already queued buffers and it will reset q->memory to * VB2_MEMORY_UNKNOWN. */ - __vb2_queue_free(q, allocated_buffers); + __vb2_queue_free(q, *first_index, allocated_buffers); mutex_unlock(&q->mmap_lock); return -ENOMEM; } @@ -2568,7 +2562,7 @@ void vb2_core_queue_release(struct vb2_queue *q) __vb2_cleanup_fileio(q); __vb2_queue_cancel(q); mutex_lock(&q->mmap_lock); - __vb2_queue_free(q, q->max_num_buffers); + __vb2_queue_free(q, 0, q->max_num_buffers); kfree(q->bufs); q->bufs = NULL; bitmap_free(q->bufs_bitmap);