config VIDEOBUF2_MEMOPS
tristate
- select FRAME_VECTOR
config VIDEOBUF2_DMA_CONTIG
tristate
# 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
#include <linux/pagemap.h>
#include <linux/sched.h>
+#include <media/frame_vector.h>
+
/**
* get_vaddr_frames() - map virtual addresses to pfns
* @start: starting user address
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.
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);
--- /dev/null
+// 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 */
#include <linux/dma-buf.h>
#include <linux/bitops.h>
#include <media/media-request.h>
+#include <media/frame_vector.h>
#define VB2_MAX_FRAME (32)
#define VB2_MAX_PLANES (8)
config VMAP_PFN
bool
-config FRAME_VECTOR
- bool
-
config ARCH_USES_HIGH_VMA_FLAGS
bool
config ARCH_HAS_PKEYS
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