1 /* NG2patch.S: Patch Ultra-I routines with Niagara-2 variant.
3 * Copyright (C) 2007 David S. Miller <davem@davemloft.net>
6 #define BRANCH_ALWAYS 0x10680000
8 #define NG_DO_PATCH(OLD, NEW) \
10 or %g1, %lo(NEW), %g1; \
11 sethi %hi(OLD), %g2; \
12 or %g2, %lo(OLD), %g2; \
14 sethi %hi(BRANCH_ALWAYS), %g3; \
16 srl %g1, 11 + 2, %g1; \
17 or %g3, %lo(BRANCH_ALWAYS), %g3; \
20 sethi %hi(NOP), %g3; \
21 or %g3, %lo(NOP), %g3; \
22 stw %g3, [%g2 + 0x4]; \
25 .globl niagara2_patch_copyops
26 .type niagara2_patch_copyops,#function
27 niagara2_patch_copyops:
28 NG_DO_PATCH(memcpy, NG2memcpy)
29 NG_DO_PATCH(___copy_from_user, NG2copy_from_user)
30 NG_DO_PATCH(___copy_to_user, NG2copy_to_user)
33 .size niagara2_patch_copyops,.-niagara2_patch_copyops