diff options
Diffstat (limited to 'linux-core/drmP.h')
| -rw-r--r-- | linux-core/drmP.h | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/linux-core/drmP.h b/linux-core/drmP.h index a6d36a64..13a21f3b 100644 --- a/linux-core/drmP.h +++ b/linux-core/drmP.h @@ -149,176 +149,8 @@ #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) |