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     7€ЗЙѓgЖїН -    7/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __CMA_H__
#define __CMA_H__

#include <linux/init.h>
#include <linux/types.h>
#include <linux/numa.h>

/*
 * There is always at least global CMA area and a few optional
 * areas configured in kernel .config.
 */
#ifdef CONFIG_CMA_AREAS
#define MAX_CMA_AREAS	(1 + CONFIG_CMA_AREAS)

#else
#define MAX_CMA_AREAS	(0)

#endif

#define CMA_MAX_NAME 64

/*
 *  the buddy -- especially pageblock merging and alloc_contig_range()
 * -- can deal with only some pageblocks of a higher-order page being
 *  MIGRATE_CMA, we can use pageblock_nr_pages.
 */
#define CMA_MIN_ALIGNMENT_PAGES pageblock_nr_pages
#define CMA_MIN_ALIGNMENT_BYTES (PAGE_SIZE * CMA_MIN_ALIGNMENT_PAGES)

struct cma;

extern unsigned long totalcma_pages;
extern phys_addr_t cma_get_base(const struct cma *cma);
extern unsigned long cma_get_size(const struct cma *cma);
extern const char *cma_get_name(const struct cma *cma);

extern int __init cma_declare_contiguous_nid(phys_addr_t base,
			phys_addr_t size, phys_addr_t limit,
			phys_addr_t alignment, unsigned int order_per_bit,
			bool fixed, const char *name, struct cma **res_cma,
			int nid);
static inline int __init cma_declare_contiguous(phys_addr_t base,
			phys_addr_t size, phys_addr_t limit,
			phys_addr_t alignment, unsigned int order_per_bit,
			bool fixed, const char *name, struct cma **res_cma)
{
	return cma_declare_contiguous_nid(base, size, limit, alignment,
			order_per_bit, fixed, name, res_cma, NUMA_NO_NODE);
}
extern int cma_init_reserved_mem(phys_addr_t base, phys_addr_t size,
					unsigned int order_per_bit,
					const char *name,
					struct cma **res_cma);
extern struct page *cma_alloc(struct cma *cma, unsigned long count, unsigned int align,
			      bool no_warn);
extern bool cma_pages_valid(struct cma *cma, const struct page *pages, unsigned long count);
extern bool cma_release(struct cma *cma, const struct page *pages, unsigned long count);

extern int cma_for_each_area(int (*it)(struct cma *cma, void *data), void *data);

extern void cma_reserve_pages_on_error(struct cma *cma);
#endif
     9€ЗЙѓo;ЖїН 3    9/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *  Universal TUN/TAP device driver.
 *  Copyright (C) 1999-2000 Maxim Krasnyansky <max_mk@yahoo.com>
 */
#ifndef __IF_TUN_H
#define __IF_TUN_H

#include <uapi/linux/if_tun.h>
#include <uapi/linux/virtio_net.h>

#define TUN_XDP_FLAG 0x1UL

#define TUN_MSG_UBUF 1
#define TUN_MSG_PTR  2
struct tun_msg_ctl {
	unsigned short type;
	unsigned short num;
	void *ptr;
};

struct tun_xdp_hdr {
	int buflen;
	struct virtio_net_hdr gso;
};

#if defined(CONFIG_TUN) || defined(CONFIG_TUN_MODULE)
struct socket *tun_get_socket(struct file *);
struct ptr_ring *tun_get_tx_ring(struct file *file);
static inline bool tun_is_xdp_frame(void *ptr)
{
       return (unsigned long)ptr & TUN_XDP_FLAG;
}
static inline void *tun_xdp_to_ptr(struct xdp_frame *xdp)
{
       return (void *)((unsigned long)xdp | TUN_XDP_FLAG);
}
static inline struct xdp_frame *tun_ptr_to_xdp(void *ptr)
{
       return (void *)((unsigned long)ptr & ~TUN_XDP_FLAG);
}
void tun_ptr_free(void *ptr);
#else
#include <linux/err.h>
#include <linux/errno.h>
struct file;
struct socket;
static inline struct socket *tun_get_socket(struct file *f)
{
	return ERR_PTR(-EINVAL);
}
static inline struct ptr_ring *tun_get_tx_ring(struct file *f)
{
	return ERR_PTR(-EINVAL);
}
static inline bool tun_is_xdp_frame(void *ptr)
{
	return false;
}
static inline void *tun_xdp_to_ptr(struct xdp_frame *xdp)
{
	return NULL;
}
static inline struct xdp_frame *tun_ptr_to_xdp(void *ptr)
{
	return NULL;
}
static inline void tun_ptr_free(void *ptr)
{
}
#endif /* CONFIG_TUN */
#endif /* __IF_TUN_H */
     ;€ЗЙѓiж™ЖїН л    ;/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_SERIAL_BCM63XX_H
#define _LINUX_SERIAL_BCM63XX_H

/* UART Control Register */
#define UART_CTL_REG			0x0
#define UART_CTL_RXTMOUTCNT_SHIFT	0
#define UART_CTL_RXTMOUTCNT_MASK	(0x1f << UART_CTL_RXTMOUTCNT_SHIFT)
#define UART_CTL_RSTTXDN_SHIFT		5
#define UART_CTL_RSTTXD