From 478b8fecda511942404ac232897a718cecd13e48 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Wed, 3 Dec 2008 03:10:25 -0800 Subject: sparc,sparc64: unify lib/ o Renamed files in sparc64 to _64.S when identical to sparc32 files. o iomap.c were equal for sparc32 and sparc64 o adjusted sparc/Makefile now we have only one lib/ Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller --- arch/sparc/lib/NG2patch.S | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 arch/sparc/lib/NG2patch.S (limited to 'arch/sparc/lib/NG2patch.S') diff --git a/arch/sparc/lib/NG2patch.S b/arch/sparc/lib/NG2patch.S new file mode 100644 index 00000000000..28c36f06a6d --- /dev/null +++ b/arch/sparc/lib/NG2patch.S @@ -0,0 +1,33 @@ +/* NG2patch.S: Patch Ultra-I routines with Niagara-2 variant. + * + * Copyright (C) 2007 David S. Miller + */ + +#define BRANCH_ALWAYS 0x10680000 +#define NOP 0x01000000 +#define NG_DO_PATCH(OLD, NEW) \ + sethi %hi(NEW), %g1; \ + or %g1, %lo(NEW), %g1; \ + sethi %hi(OLD), %g2; \ + or %g2, %lo(OLD), %g2; \ + sub %g1, %g2, %g1; \ + sethi %hi(BRANCH_ALWAYS), %g3; \ + sll %g1, 11, %g1; \ + srl %g1, 11 + 2, %g1; \ + or %g3, %lo(BRANCH_ALWAYS), %g3; \ + or %g3, %g1, %g3; \ + stw %g3, [%g2]; \ + sethi %hi(NOP), %g3; \ + or %g3, %lo(NOP), %g3; \ + stw %g3, [%g2 + 0x4]; \ + flush %g2; + + .globl niagara2_patch_copyops + .type niagara2_patch_copyops,#function +niagara2_patch_copyops: + NG_DO_PATCH(memcpy, NG2memcpy) + NG_DO_PATCH(___copy_from_user, NG2copy_from_user) + NG_DO_PATCH(___copy_to_user, NG2copy_to_user) + retl + nop + .size niagara2_patch_copyops,.-niagara2_patch_copyops -- cgit v1.2.3