tools/virtio: separate headers more.

This makes them a bit more like the kernel headers, so we can include more
real kernel headers in our tests.

In addition this means that we don't break tools/virtio with the next
patch.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

1 files changed, 3 insertions, 147 deletions

diff --git a/tools/virtio/linux/virtio.h b/tools/virtio/linux/virtio.h
index 390c4cb3b018..e4af6591f5ff 100644
--- a/tools/virtio/linux/virtio.h
+++ b/tools/virtio/linux/virtio.h
@@ -1,129 +1,7 @@
 #ifndef LINUX_VIRTIO_H
 #define LINUX_VIRTIO_H
-
-#include <stdbool.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-
-#include <linux/types.h>
-#include <errno.h>
-
-typedef unsigned long long dma_addr_t;
-
-struct scatterlist {
-	unsigned long	page_link;
-	unsigned int	offset;
-	unsigned int	length;
-	dma_addr_t	dma_address;
-};
-
-struct page {
-	unsigned long long dummy;
-};
-
-#define BUG_ON(__BUG_ON_cond) assert(!(__BUG_ON_cond))
-
-/* Physical == Virtual */
-#define virt_to_phys(p) ((unsigned long)p)
-#define phys_to_virt(a) ((void *)(unsigned long)(a))
-/* Page address: Virtual / 4K */
-#define virt_to_page(p) ((struct page*)((virt_to_phys(p) / 4096) * \
-					sizeof(struct page)))
-#define offset_in_page(p) (((unsigned long)p) % 4096)
-#define sg_phys(sg) ((sg->page_link & ~0x3) / sizeof(struct page) * 4096 + \
-		     sg->offset)
-static inline void sg_mark_end(struct scatterlist *sg)
-{
-	/*
-	 * Set termination bit, clear potential chain bit
-	 */
-	sg->page_link |= 0x02;
-	sg->page_link &= ~0x01;
-}
-static inline void sg_init_table(struct scatterlist *sgl, unsigned int nents)
-{
-	memset(sgl, 0, sizeof(*sgl) * nents);
-	sg_mark_end(&sgl[nents - 1]);
-}
-static inline void sg_assign_page(struct scatterlist *sg, struct page *page)
-{
-	unsigned long page_link = sg->page_link & 0x3;
-
-	/*
-	 * In order for the low bit stealing approach to work, pages
-	 * must be aligned at a 32-bit boundary as a minimum.
-	 */
-	BUG_ON((unsigned long) page & 0x03);
-	sg->page_link = page_link | (unsigned long) page;
-}
-
-static inline void sg_set_page(struct scatterlist *sg, struct page *page,
-			       unsigned int len, unsigned int offset)
-{
-	sg_assign_page(sg, page);
-	sg->offset = offset;
-	sg->length = len;
-}
-
-static inline void sg_set_buf(struct scatterlist *sg, const void *buf,
-			      unsigned int buflen)
-{
-	sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf));
-}
-
-static inline void sg_init_one(struct scatterlist *sg, const void *buf, unsigned int buflen)
-{
-	sg_init_table(sg, 1);
-	sg_set_buf(sg, buf, buflen);
-}
-
-typedef __u16 u16;
-
-typedef enum {
-	GFP_KERNEL,
-	GFP_ATOMIC,
-	__GFP_HIGHMEM,
-	__GFP_HIGH
-} gfp_t;
-typedef enum {
-	IRQ_NONE,
-	IRQ_HANDLED
-} irqreturn_t;
-
-static inline void *kmalloc(size_t s, gfp_t gfp)
-{
-	return malloc(s);
-}
-
-static inline void kfree(void *p)
-{
-	free(p);
-}
-
-#define container_of(ptr, type, member) ({			\
-	const typeof( ((type *)0)->member ) *__mptr = (ptr);	\
-	(type *)( (char *)__mptr - offsetof(type,member) );})
-
-#define uninitialized_var(x) x = x
-
-# ifndef likely
-#  define likely(x)	(__builtin_expect(!!(x), 1))
-# endif
-# ifndef unlikely
-#  define unlikely(x)	(__builtin_expect(!!(x), 0))
-# endif
-
-#define pr_err(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
-#ifdef DEBUG
-#define pr_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
-#else
-#define pr_debug(format, ...) do {} while (0)
-#endif
-#define dev_err(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__)
-#define dev_warn(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__)
+#include <linux/scatterlist.h>
+#include <linux/kernel.h>
 
 /* TODO: empty stubs for now. Broken but enough for virtio_ring.c */
 #define list_add_tail(a, b) do {} while (0)
@@ -133,6 +11,7 @@ static inline void kfree(void *p)
 #define BITS_PER_BYTE		8
 #define BITS_PER_LONG (sizeof(long) * BITS_PER_BYTE)
 #define BIT_MASK(nr)		(1UL << ((nr) % BITS_PER_LONG))
+
 /* TODO: Not atomic as it should be:
  * we don't use this for anything important. */
 static inline void clear_bit(int nr, volatile unsigned long *addr)
@@ -147,10 +26,6 @@ static inline int test_bit(int nr, const volatile unsigned long *addr)
 {
         return 1UL & (addr[BIT_WORD(nr)] >> (nr & (BITS_PER_LONG-1)));
 }
-
-/* The only feature we care to support */
-#define virtio_has_feature(dev, feature) \
-	test_bit((feature), (dev)->features)
 /* end of stubs */
 
 struct virtio_device {
@@ -170,28 +45,9 @@ struct virtqueue {
 	void *priv;
 };
 
-#define EXPORT_SYMBOL_GPL(__EXPORT_SYMBOL_GPL_name) \
-	void __EXPORT_SYMBOL_GPL##__EXPORT_SYMBOL_GPL_name() { \
-}
 #define MODULE_LICENSE(__MODULE_LICENSE_value) \
 	const char *__MODULE_LICENSE_name = __MODULE_LICENSE_value
 
-#define CONFIG_SMP
-
-#if defined(__i386__) || defined(__x86_64__)
-#define barrier() asm volatile("" ::: "memory")
-#define mb() __sync_synchronize()
-
-#define smp_mb()	mb()
-# define smp_rmb()	barrier()
-# define smp_wmb()	barrier()
-/* Weak barriers should be used. If not - it's a bug */
-# define rmb()	abort()
-# define wmb()	abort()
-#else
-#error Please fill in barrier macros
-#endif
-
 /* Interfaces exported by virtio_ring. */
 int virtqueue_add_buf(struct virtqueue *vq,
 		      struct scatterlist sg[],