[tg3] Remove x86-specific inline assembly

Signed-off-by: Michael Brown <mcb30@ipxe.org>

diff --git a/src/drivers/net/tg3/tg3.h b/src/drivers/net/tg3/tg3.h
index bfabad0713d585457a28a8bbfbc03ca22b7cbc6d..d29523a83ec4d2e3f11dcdbc3f4a3e62ab939325 100644 (file)
--- a/src/drivers/net/tg3/tg3.h
+++ b/src/drivers/net/tg3/tg3.h
@@ -3320,43 +3320,25 @@ void tg3_write_indirect_mbox(struct tg3 *tp, u32 off, u32 val);
 
 /* Functions & macros to verify TG3_FLAGS types */
 
-static inline int variable_test_bit(int nr, volatile const unsigned long *addr)
-{
-       int oldbit;
-
-       asm volatile("bt %2,%1\n\t"
-                    "sbb %0,%0"
-                    : "=r" (oldbit)
-                    : "m" (*(unsigned long *)addr), "Ir" (nr));
-
-       return oldbit;
-}
-
 static inline int _tg3_flag(enum TG3_FLAGS flag, unsigned long *bits)
 {
-       return variable_test_bit(flag, bits);
-}
-
-#define BITOP_ADDR(x) "+m" (*(volatile long *) (x))
-
-static inline void __set_bit(int nr, volatile unsigned long *addr)
-{
-       asm volatile("bts %1,%0" : BITOP_ADDR(addr) : "Ir" (nr) : "memory");
+       unsigned int index = ( flag / ( 8 * sizeof ( *bits ) ) );
+       unsigned int bit = ( flag % ( 8 * sizeof ( *bits ) ) );
+       return ( bits[index] & ( 1UL << bit ) );
 }
 
 static inline void _tg3_flag_set(enum TG3_FLAGS flag, unsigned long *bits)
 {
-       __set_bit(flag, bits);
-}
-
-static inline void __clear_bit(int nr, volatile unsigned long *addr)
-{
-       asm volatile("btr %1,%0" : BITOP_ADDR(addr) : "Ir" (nr));
+       unsigned int index = ( flag / ( 8 * sizeof ( *bits ) ) );
+       unsigned int bit = ( flag % ( 8 * sizeof ( *bits ) ) );
+       bits[index] |= ( 1UL << bit );
 }
 
 static inline void _tg3_flag_clear(enum TG3_FLAGS flag, unsigned long *bits)
 {
-       __clear_bit(flag, bits);
+       unsigned int index = ( flag / ( 8 * sizeof ( *bits ) ) );
+       unsigned int bit = ( flag % ( 8 * sizeof ( *bits ) ) );
+       bits[index] &= ~( 1UL << bit );
 }
 
 #define tg3_flag(tp, flag)                             \