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Thu, 19 Nov 2020 06:42:01 -0800 (PST) Received: from phenom.ffwll.local ([2a02:168:57f4:0:efd0:b9e5:5ae6:c2fa]) by smtp.gmail.com with ESMTPSA id x63sm51292wmb.48.2020.11.19.06.42.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 19 Nov 2020 06:42:00 -0800 (PST) From: Daniel Vetter To: DRI Development , LKML Subject: [PATCH v6 06/17] media: videobuf2: Move frame_vector into media subsystem Date: Thu, 19 Nov 2020 15:41:35 +0100 Message-Id: <20201119144146.1045202-7-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201119144146.1045202-1-daniel.vetter@ffwll.ch> References: <20201119144146.1045202-1-daniel.vetter@ffwll.ch> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201119_094205_483412_CEE107C0 X-CRM114-Status: GOOD ( 27.87 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-samsung-soc@vger.kernel.org, Jan Kara , Pawel Osciak , kvm@vger.kernel.org, Jason Gunthorpe , Mauro Carvalho Chehab , Daniel Vetter , Mauro Carvalho Chehab , =?utf-8?b?SsOpcsO0bWUgR2xpc3Nl?= , Tomasz Figa , linux-mm@kvack.org, Kyungmin Park , John Hubbard , Daniel Vetter , Andrew Morton , Marek Szyprowski , Dan Williams , linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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 Acked-by: Tomasz Figa 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 Acked-by: Hans Verkuil --- v3: - Create a new frame_vector.h header for this (Mauro) v5: - Rebase over changes in frame-vector.c from Tomasz review. --- 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 f8c34b895c76..a0e65481a201 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 efb8c39bc933..b1a4a140863d 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1751,48 +1751,6 @@ 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, - 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..bfed1710dc24 --- /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, + 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 d42423f884a7..0dcff24cba53 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -819,9 +819,6 @@ config DEVICE_PRIVATE config VMAP_PFN bool -config FRAME_VECTOR - bool - config ARCH_USES_HIGH_VMA_FLAGS bool config ARCH_HAS_PKEYS diff --git a/mm/Makefile b/mm/Makefile index d73aed0fc99c..db41fff05038 100644 --- a/mm/Makefile +++ b/mm/Makefile @@ -110,7 +110,6 @@ 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