#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
- /* Backward compatibility section */
- /* _PAGE_WT changed to _PAGE_PWT in 2.2.6 */
-#ifndef _PAGE_PWT
-#define _PAGE_PWT _PAGE_WT
-#endif
- /* Wait queue declarations changed in 2.3.1 */
-#ifndef DECLARE_WAITQUEUE
-#define DECLARE_WAITQUEUE(w,c) struct wait_queue w = { c, NULL }
-typedef struct wait_queue *wait_queue_head_t;
-#define init_waitqueue_head(q) *q = NULL;
-#endif
-
- /* _PAGE_4M changed to _PAGE_PSE in 2.3.23 */
-#ifndef _PAGE_PSE
-#define _PAGE_PSE _PAGE_4M
-#endif
-
#define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT)
- /* *_nopage return values defined in 2.3.26 */
-#ifndef NOPAGE_SIGBUS
-#define NOPAGE_SIGBUS 0
-#endif
-#ifndef NOPAGE_OOM
-#define NOPAGE_OOM 0
-#endif
-
- /* module_init/module_exit added in 2.3.13 */
-#ifndef module_init
-#define module_init(x) int init_module(void) { return x(); }
-#endif
-#ifndef module_exit
-#define module_exit(x) void cleanup_module(void) { x(); }
-#endif
-
- /* Generic cmpxchg added in 2.3.x */
-#ifndef __HAVE_ARCH_CMPXCHG
- /* Include this here so that driver can be
- used with older kernels. */
-#if defined(__alpha__)
-static __inline__ unsigned long
-__cmpxchg_u32(volatile int *m, int old, int new)
-{
- unsigned long prev, cmp;
-
- __asm__ __volatile__(
- "1: ldl_l %0,%5\n"
- " cmpeq %0,%3,%1\n"
- " beq %1,2f\n"
- " mov %4,%1\n"
- " stl_c %1,%2\n"
- " beq %1,3f\n"
- "2: mb\n"
- ".subsection 2\n"
- "3: br 1b\n"
- ".previous"
- : "=&r"(prev), "=&r"(cmp), "=m"(*m)
- : "r"((long) old), "r"(new), "m"(*m)
- : "memory" );
-
- return prev;
-}
-
-static __inline__ unsigned long
-__cmpxchg_u64(volatile long *m, unsigned long old, unsigned long new)
-{
- unsigned long prev, cmp;
-
- __asm__ __volatile__(
- "1: ldq_l %0,%5\n"
- " cmpeq %0,%3,%1\n"
- " beq %1,2f\n"
- " mov %4,%1\n"
- " stq_c %1,%2\n"
- " beq %1,3f\n"
- "2: mb\n"
- ".subsection 2\n"
- "3: br 1b\n"
- ".previous"
- : "=&r"(prev), "=&r"(cmp), "=m"(*m)
- : "r"((long) old), "r"(new), "m"(*m)
- : "memory" );
-
- return prev;
-}
-
-static __inline__ unsigned long
-__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
-{
- switch (size) {
- case 4:
- return __cmpxchg_u32(ptr, old, new);
- case 8:
- return __cmpxchg_u64(ptr, old, new);
- }
- return old;
-}
-#define cmpxchg(ptr,o,n) \
- ({ \
- __typeof__(*(ptr)) _o_ = (o); \
- __typeof__(*(ptr)) _n_ = (n); \
- (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \
- (unsigned long)_n_, sizeof(*(ptr))); \
- })
-
-#elif __i386__
-static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
- unsigned long new, int size)
-{
- unsigned long prev;
- switch (size) {
- case 1:
- __asm__ __volatile__(LOCK_PREFIX "cmpxchgb %b1,%2"
- : "=a"(prev)
- : "q"(new), "m"(*__xg(ptr)), "0"(old)
- : "memory");
- return prev;
- case 2:
- __asm__ __volatile__(LOCK_PREFIX "cmpxchgw %w1,%2"
- : "=a"(prev)
- : "q"(new), "m"(*__xg(ptr)), "0"(old)
- : "memory");
- return prev;
- case 4:
- __asm__ __volatile__(LOCK_PREFIX "cmpxchgl %1,%2"
- : "=a"(prev)
- : "q"(new), "m"(*__xg(ptr)), "0"(old)
- : "memory");
- return prev;
- }
- return old;
-}
-
-#elif defined(__powerpc__)
-extern void __cmpxchg_called_with_bad_pointer(void);
-static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
- unsigned long new, int size)
-{
- unsigned long prev;
-
- switch (size) {
- case 4:
- __asm__ __volatile__(
- "sync;"
- "0: lwarx %0,0,%1 ;"
- " cmpl 0,%0,%3;"
- " bne 1f;"
- " stwcx. %2,0,%1;"
- " bne- 0b;"
- "1: "
- "sync;"
- : "=&r"(prev)
- : "r"(ptr), "r"(new), "r"(old)
- : "cr0", "memory");
- return prev;
- }
- __cmpxchg_called_with_bad_pointer();
- return old;
-}
-
-#endif /* i386, powerpc & alpha */
-
-#ifndef __alpha__
-#define cmpxchg(ptr,o,n) \
- ((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o), \
- (unsigned long)(n),sizeof(*(ptr))))
-#endif
-
-#endif /* !__HAVE_ARCH_CMPXCHG */
-
/* Macros to make printk easier */
#define DRM_ERROR(fmt, arg...) \
printk(KERN_ERR "[" DRM_NAME ":" __FUNCTION__ "] *ERROR* " fmt , ##arg)
#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
- /* Backward compatibility section */
- /* _PAGE_WT changed to _PAGE_PWT in 2.2.6 */
-#ifndef _PAGE_PWT
-#define _PAGE_PWT _PAGE_WT
-#endif
- /* Wait queue declarations changed in 2.3.1 */
-#ifndef DECLARE_WAITQUEUE
-#define DECLARE_WAITQUEUE(w,c) struct wait_queue w = { c, NULL }
-typedef struct wait_queue *wait_queue_head_t;
-#define init_waitqueue_head(q) *q = NULL;
-#endif
-
- /* _PAGE_4M changed to _PAGE_PSE in 2.3.23 */
-#ifndef _PAGE_PSE
-#define _PAGE_PSE _PAGE_4M
-#endif
-
#define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT)
- /* *_nopage return values defined in 2.3.26 */
-#ifndef NOPAGE_SIGBUS
-#define NOPAGE_SIGBUS 0
-#endif
-#ifndef NOPAGE_OOM
-#define NOPAGE_OOM 0
-#endif
-
- /* module_init/module_exit added in 2.3.13 */
-#ifndef module_init
-#define module_init(x) int init_module(void) { return x(); }
-#endif
-#ifndef module_exit
-#define module_exit(x) void cleanup_module(void) { x(); }
-#endif
-
- /* Generic cmpxchg added in 2.3.x */
-#ifndef __HAVE_ARCH_CMPXCHG
- /* Include this here so that driver can be
- used with older kernels. */
-#if defined(__alpha__)
-static __inline__ unsigned long
-__cmpxchg_u32(volatile int *m, int old, int new)
-{
- unsigned long prev, cmp;
-
- __asm__ __volatile__(
- "1: ldl_l %0,%5\n"
- " cmpeq %0,%3,%1\n"
- " beq %1,2f\n"
- " mov %4,%1\n"
- " stl_c %1,%2\n"
- " beq %1,3f\n"
- "2: mb\n"
- ".subsection 2\n"
- "3: br 1b\n"
- ".previous"
- : "=&r"(prev), "=&r"(cmp), "=m"(*m)
- : "r"((long) old), "r"(new), "m"(*m)
- : "memory" );
-
- return prev;
-}
-
-static __inline__ unsigned long
-__cmpxchg_u64(volatile long *m, unsigned long old, unsigned long new)
-{
- unsigned long prev, cmp;
-
- __asm__ __volatile__(
- "1: ldq_l %0,%5\n"
- " cmpeq %0,%3,%1\n"
- " beq %1,2f\n"
- " mov %4,%1\n"
- " stq_c %1,%2\n"
- " beq %1,3f\n"
- "2: mb\n"
- ".subsection 2\n"
- "3: br 1b\n"
- ".previous"
- : "=&r"(prev), "=&r"(cmp), "=m"(*m)
- : "r"((long) old), "r"(new), "m"(*m)
- : "memory" );
-
- return prev;
-}
-
-static __inline__ unsigned long
-__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
-{
- switch (size) {
- case 4:
- return __cmpxchg_u32(ptr, old, new);
- case 8:
- return __cmpxchg_u64(ptr, old, new);
- }
- return old;
-}
-#define cmpxchg(ptr,o,n) \
- ({ \
- __typeof__(*(ptr)) _o_ = (o); \
- __typeof__(*(ptr)) _n_ = (n); \
- (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \
- (unsigned long)_n_, sizeof(*(ptr))); \
- })
-
-#elif __i386__
-static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
- unsigned long new, int size)
-{
- unsigned long prev;
- switch (size) {
- case 1:
- __asm__ __volatile__(LOCK_PREFIX "cmpxchgb %b1,%2"
- : "=a"(prev)
- : "q"(new), "m"(*__xg(ptr)), "0"(old)
- : "memory");
- return prev;
- case 2:
- __asm__ __volatile__(LOCK_PREFIX "cmpxchgw %w1,%2"
- : "=a"(prev)
- : "q"(new), "m"(*__xg(ptr)), "0"(old)
- : "memory");
- return prev;
- case 4:
- __asm__ __volatile__(LOCK_PREFIX "cmpxchgl %1,%2"
- : "=a"(prev)
- : "q"(new), "m"(*__xg(ptr)), "0"(old)
- : "memory");
- return prev;
- }
- return old;
-}
-
-#elif defined(__powerpc__)
-extern void __cmpxchg_called_with_bad_pointer(void);
-static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
- unsigned long new, int size)
-{
- unsigned long prev;
-
- switch (size) {
- case 4:
- __asm__ __volatile__(
- "sync;"
- "0: lwarx %0,0,%1 ;"
- " cmpl 0,%0,%3;"
- " bne 1f;"
- " stwcx. %2,0,%1;"
- " bne- 0b;"
- "1: "
- "sync;"
- : "=&r"(prev)
- : "r"(ptr), "r"(new), "r"(old)
- : "cr0", "memory");
- return prev;
- }
- __cmpxchg_called_with_bad_pointer();
- return old;
-}
-
-#endif /* i386, powerpc & alpha */
-
-#ifndef __alpha__
-#define cmpxchg(ptr,o,n) \
- ((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o), \
- (unsigned long)(n),sizeof(*(ptr))))
-#endif
-
-#endif /* !__HAVE_ARCH_CMPXCHG */
-
/* Macros to make printk easier */
#define DRM_ERROR(fmt, arg...) \
printk(KERN_ERR "[" DRM_NAME ":" __FUNCTION__ "] *ERROR* " fmt , ##arg)
projects / profile / ivi / libdrm.git / commitdiff