From patchwork Fri Oct 23 12:21:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Daniel Vetter X-Patchwork-Id: 11852959 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 AEACD92C for ; Fri, 23 Oct 2020 12:23:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8A75524631 for ; Fri, 23 Oct 2020 12:23:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ffwll.ch header.i=@ffwll.ch header.b="GWMzMlOo" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S463670AbgJWMXG (ORCPT ); Fri, 23 Oct 2020 08:23:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38030 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S463669AbgJWMXF (ORCPT ); Fri, 23 Oct 2020 08:23:05 -0400 Received: from mail-wr1-x441.google.com (mail-wr1-x441.google.com [IPv6:2a00:1450:4864:20::441]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 675B3C0613D4 for ; Fri, 23 Oct 2020 05:23:04 -0700 (PDT) Received: by mail-wr1-x441.google.com with SMTP id j7so1563332wrt.9 for ; Fri, 23 Oct 2020 05:23:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ffwll.ch; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=6WV52rOTICG5gX8Y1zv7jCBKQNXPiDy4YHeczZNq5R8=; b=GWMzMlOoM30W5hlxnVdv3gz53647+4fdHXYymDsOfzhTNsk0z0MfJMjx4w6nZ94KSK sfbyQuNDRBSJ7z7dwGyDhR7Ol6tkx4xZWRKmmTirMfsl0A+bAFoETnuyiBBVhYpf0FVO 4tjClYte6Izd5GcvbhbzB5NvdIfaex+qSjX5g= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=6WV52rOTICG5gX8Y1zv7jCBKQNXPiDy4YHeczZNq5R8=; b=TIeYa7+bgPtZTd8GH0b6K5Pq7qrUHR+Rxog+6qYgek6eLrGTGzrKFhH2P9iid2b2ZX VL2iM9DCVYxMfcW0k+zayIYvY9D0oc7HJoepa/bwvaCR/+QdhHCEFK7Wjkst7a3E60Om xA9I+h9IdXVLBe+aQVJfv4UwfJtAUirpAtv2a5OBYK6+Ll0V/3iZAecPFhUfESgrHN8u emK0csEM3RDFBbQrbxPXOQsF5kPf4bQNYApBmzu+/xjp5vIYFOuXMvggr/OvkCZZp7Qc nx3VZToT2XIvC+6XYbNpfC6wN/QQ5BZhdFXdaCht0pdumA9OwqiA580voKJwa+ZUSbwq 7Ujw== X-Gm-Message-State: AOAM530ml7l0Yg5UgI/opvVcn0ykIAW2lkZRSVg6NAVUYK4gHpHuejBu rMzsR4s9uB2KBgT5m6ZMQd2aTw== X-Google-Smtp-Source: ABdhPJyf0rFBdStZWr3ETjOPszhGAdp3As8uqEIf5/xUW6NvJZpiJwjwaGUkv0kEBGdr8o9LmQTEEg== X-Received: by 2002:adf:e549:: with SMTP id z9mr2523394wrm.12.1603455783113; Fri, 23 Oct 2020 05:23:03 -0700 (PDT) Received: from phenom.ffwll.local ([2a02:168:57f4:0:efd0:b9e5:5ae6:c2fa]) by smtp.gmail.com with ESMTPSA id y4sm3056484wrp.74.2020.10.23.05.23.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Oct 2020 05:23:02 -0700 (PDT) From: Daniel Vetter To: DRI Development Cc: Intel Graphics Development , Daniel Vetter , John Hubbard , Mauro Carvalho Chehab , Daniel Vetter , Jason Gunthorpe , Pawel Osciak , Marek Szyprowski , Kyungmin Park , Tomasz Figa , Mauro Carvalho Chehab , Andrew Morton , =?utf-8?b?SsOpcsO0bWUgR2xpc3Nl?= , Jan Kara , Dan Williams , linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-media@vger.kernel.org Subject: [PATCH 35/65] media: videobuf2: Move frame_vector into media subsystem Date: Fri, 23 Oct 2020 14:21:46 +0200 Message-Id: <20201023122216.2373294-35-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201023122216.2373294-1-daniel.vetter@ffwll.ch> References: <20201021163242.1458885-1-daniel.vetter@ffwll.ch> <20201023122216.2373294-1-daniel.vetter@ffwll.ch> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org It's the only user. This also garbage collects the CONFIG_FRAME_VECTOR symbol from all over the tree (well just one place, somehow omap media driver still had this in its Kconfig, despite not using it). Reviewed-by: John Hubbard Acked-by: Mauro Carvalho Chehab Signed-off-by: Daniel Vetter Cc: Jason Gunthorpe Cc: Pawel Osciak Cc: Marek Szyprowski Cc: Kyungmin Park Cc: Tomasz Figa Cc: Mauro Carvalho Chehab Cc: Andrew Morton Cc: John Hubbard Cc: Jérôme Glisse Cc: Jan Kara Cc: Dan Williams Cc: linux-mm@kvack.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: linux-media@vger.kernel.org Cc: Daniel Vetter Signed-off-by: Daniel Vetter --- v3: - Create a new frame_vector.h header for this (Mauro) --- drivers/media/common/videobuf2/Kconfig | 1 - drivers/media/common/videobuf2/Makefile | 1 + .../media/common/videobuf2}/frame_vector.c | 2 + drivers/media/platform/omap/Kconfig | 1 - include/linux/mm.h | 42 ----------------- include/media/frame_vector.h | 47 +++++++++++++++++++ include/media/videobuf2-core.h | 1 + mm/Kconfig | 3 -- mm/Makefile | 1 - 9 files changed, 51 insertions(+), 48 deletions(-) rename {mm => drivers/media/common/videobuf2}/frame_vector.c (99%) create mode 100644 include/media/frame_vector.h diff --git a/drivers/media/common/videobuf2/Kconfig b/drivers/media/common/videobuf2/Kconfig index edbc99ebba87..d2223a12c95f 100644 --- a/drivers/media/common/videobuf2/Kconfig +++ b/drivers/media/common/videobuf2/Kconfig @@ -9,7 +9,6 @@ config VIDEOBUF2_V4L2 config VIDEOBUF2_MEMOPS tristate - select FRAME_VECTOR config VIDEOBUF2_DMA_CONTIG tristate diff --git a/drivers/media/common/videobuf2/Makefile b/drivers/media/common/videobuf2/Makefile index 77bebe8b202f..54306f8d096c 100644 --- a/drivers/media/common/videobuf2/Makefile +++ b/drivers/media/common/videobuf2/Makefile @@ -1,5 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 videobuf2-common-objs := videobuf2-core.o +videobuf2-common-objs += frame_vector.o ifeq ($(CONFIG_TRACEPOINTS),y) videobuf2-common-objs += vb2-trace.o diff --git a/mm/frame_vector.c b/drivers/media/common/videobuf2/frame_vector.c similarity index 99% rename from mm/frame_vector.c rename to drivers/media/common/videobuf2/frame_vector.c index d44779e56313..6590987c14bd 100644 --- a/mm/frame_vector.c +++ b/drivers/media/common/videobuf2/frame_vector.c @@ -8,6 +8,8 @@ #include #include +#include + /** * get_vaddr_frames() - map virtual addresses to pfns * @start: starting user address diff --git a/drivers/media/platform/omap/Kconfig b/drivers/media/platform/omap/Kconfig index f73b5893220d..de16de46c0f4 100644 --- a/drivers/media/platform/omap/Kconfig +++ b/drivers/media/platform/omap/Kconfig @@ -12,6 +12,5 @@ config VIDEO_OMAP2_VOUT depends on VIDEO_V4L2 select VIDEOBUF2_DMA_CONTIG select OMAP2_VRFB if ARCH_OMAP2 || ARCH_OMAP3 - select FRAME_VECTOR help V4L2 Display driver support for OMAP2/3 based boards. diff --git a/include/linux/mm.h b/include/linux/mm.h index 16b799a0522c..acd60fbf1a5a 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1743,48 +1743,6 @@ int account_locked_vm(struct mm_struct *mm, unsigned long pages, bool inc); int __account_locked_vm(struct mm_struct *mm, unsigned long pages, bool inc, struct task_struct *task, bool bypass_rlim); -/* Container for pinned pfns / pages */ -struct frame_vector { - unsigned int nr_allocated; /* Number of frames we have space for */ - unsigned int nr_frames; /* Number of frames stored in ptrs array */ - bool got_ref; /* Did we pin pages by getting page ref? */ - bool is_pfns; /* Does array contain pages or pfns? */ - void *ptrs[]; /* Array of pinned pfns / pages. Use - * pfns_vector_pages() or pfns_vector_pfns() - * for access */ -}; - -struct frame_vector *frame_vector_create(unsigned int nr_frames); -void frame_vector_destroy(struct frame_vector *vec); -int get_vaddr_frames(unsigned long start, unsigned int nr_pfns, - unsigned int gup_flags, struct frame_vector *vec); -void put_vaddr_frames(struct frame_vector *vec); -int frame_vector_to_pages(struct frame_vector *vec); -void frame_vector_to_pfns(struct frame_vector *vec); - -static inline unsigned int frame_vector_count(struct frame_vector *vec) -{ - return vec->nr_frames; -} - -static inline struct page **frame_vector_pages(struct frame_vector *vec) -{ - if (vec->is_pfns) { - int err = frame_vector_to_pages(vec); - - if (err) - return ERR_PTR(err); - } - return (struct page **)(vec->ptrs); -} - -static inline unsigned long *frame_vector_pfns(struct frame_vector *vec) -{ - if (!vec->is_pfns) - frame_vector_to_pfns(vec); - return (unsigned long *)(vec->ptrs); -} - struct kvec; int get_kernel_pages(const struct kvec *iov, int nr_pages, int write, struct page **pages); diff --git a/include/media/frame_vector.h b/include/media/frame_vector.h new file mode 100644 index 000000000000..1ed0cd64510d --- /dev/null +++ b/include/media/frame_vector.h @@ -0,0 +1,47 @@ +// SPDX-License-Identifier: GPL-2.0 +#ifndef _MEDIA_FRAME_VECTOR_H +#define _MEDIA_FRAME_VECTOR_H + +/* Container for pinned pfns / pages in frame_vector.c */ +struct frame_vector { + unsigned int nr_allocated; /* Number of frames we have space for */ + unsigned int nr_frames; /* Number of frames stored in ptrs array */ + bool got_ref; /* Did we pin pages by getting page ref? */ + bool is_pfns; /* Does array contain pages or pfns? */ + void *ptrs[]; /* Array of pinned pfns / pages. Use + * pfns_vector_pages() or pfns_vector_pfns() + * for access */ +}; + +struct frame_vector *frame_vector_create(unsigned int nr_frames); +void frame_vector_destroy(struct frame_vector *vec); +int get_vaddr_frames(unsigned long start, unsigned int nr_pfns, + unsigned int gup_flags, struct frame_vector *vec); +void put_vaddr_frames(struct frame_vector *vec); +int frame_vector_to_pages(struct frame_vector *vec); +void frame_vector_to_pfns(struct frame_vector *vec); + +static inline unsigned int frame_vector_count(struct frame_vector *vec) +{ + return vec->nr_frames; +} + +static inline struct page **frame_vector_pages(struct frame_vector *vec) +{ + if (vec->is_pfns) { + int err = frame_vector_to_pages(vec); + + if (err) + return ERR_PTR(err); + } + return (struct page **)(vec->ptrs); +} + +static inline unsigned long *frame_vector_pfns(struct frame_vector *vec) +{ + if (!vec->is_pfns) + frame_vector_to_pfns(vec); + return (unsigned long *)(vec->ptrs); +} + +#endif /* _MEDIA_FRAME_VECTOR_H */ diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h index bbb3f26fbde9..d045e3a5a1d8 100644 --- a/include/media/videobuf2-core.h +++ b/include/media/videobuf2-core.h @@ -18,6 +18,7 @@ #include #include #include +#include #define VB2_MAX_FRAME (32) #define VB2_MAX_PLANES (8) diff --git a/mm/Kconfig b/mm/Kconfig index 6c974888f86f..da6c943fe9f1 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -815,9 +815,6 @@ config DEVICE_PRIVATE memory; i.e., memory that is only accessible from the device (or group of devices). You likely also want to select HMM_MIRROR. -config FRAME_VECTOR - bool - config ARCH_USES_HIGH_VMA_FLAGS bool config ARCH_HAS_PKEYS diff --git a/mm/Makefile b/mm/Makefile index d5649f1c12c0..a025fd6c6afd 100644 --- a/mm/Makefile +++ b/mm/Makefile @@ -111,7 +111,6 @@ obj-$(CONFIG_PAGE_EXTENSION) += page_ext.o obj-$(CONFIG_CMA_DEBUGFS) += cma_debug.o obj-$(CONFIG_USERFAULTFD) += userfaultfd.o obj-$(CONFIG_IDLE_PAGE_TRACKING) += page_idle.o -obj-$(CONFIG_FRAME_VECTOR) += frame_vector.o obj-$(CONFIG_DEBUG_PAGE_REF) += debug_page_ref.o obj-$(CONFIG_HARDENED_USERCOPY) += usercopy.o obj-$(CONFIG_PERCPU_STATS) += percpu-stats.o