From 3ddfbcf19b15ccd25a0b4b2dc2e38000e08de739 Mon Sep 17 00:00:00 2001 From: David Gibson Date: Thu, 10 Nov 2005 12:56:55 +1100 Subject: [PATCH] powerpc: Consolidate asm compatibility macros This patch consolidates macros used to generate assembly for compatibility across different CPUs or configs. A new header, asm-powerpc/asm-compat.h contains the main compatibility macros. It uses some preprocessor magic to make the macros suitable both for use in .S files, and in inline asm in .c files. Headers (bitops.h, uaccess.h, atomic.h, bug.h) which had their own such compatibility macros are changed to use asm-compat.h. ppc_asm.h is now for use in .S files *only*, and a #error enforces that. As such, we're a lot more careless about namespace pollution here than in asm-compat.h. While we're at it, this patch adds a call to the PPC405_ERR77 macro in futex.h which should have had it already, but didn't. Built and booted on pSeries, Maple and iSeries (ARCH=powerpc). Built for 32-bit powermac (ARCH=powerpc) and Walnut (ARCH=ppc). Signed-off-by: David Gibson Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/fpu.S | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) (limited to 'arch/powerpc/kernel/fpu.S') diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S index 4d6001f..b780b42 100644 --- a/arch/powerpc/kernel/fpu.S +++ b/arch/powerpc/kernel/fpu.S @@ -41,20 +41,20 @@ _GLOBAL(load_up_fpu) #ifndef CONFIG_SMP LOADBASE(r3, last_task_used_math) toreal(r3) - LDL r4,OFF(last_task_used_math)(r3) - CMPI 0,r4,0 + PPC_LL r4,OFF(last_task_used_math)(r3) + PPC_LCMPI 0,r4,0 beq 1f toreal(r4) addi r4,r4,THREAD /* want last_task_used_math->thread */ SAVE_32FPRS(0, r4) mffs fr0 stfd fr0,THREAD_FPSCR(r4) - LDL r5,PT_REGS(r4) + PPC_LL r5,PT_REGS(r4) toreal(r5) - LDL r4,_MSR-STACK_FRAME_OVERHEAD(r5) + PPC_LL r4,_MSR-STACK_FRAME_OVERHEAD(r5) li r10,MSR_FP|MSR_FE0|MSR_FE1 andc r4,r4,r10 /* disable FP for previous task */ - STL r4,_MSR-STACK_FRAME_OVERHEAD(r5) + PPC_STL r4,_MSR-STACK_FRAME_OVERHEAD(r5) 1: #endif /* CONFIG_SMP */ /* enable use of FP after return */ @@ -77,7 +77,7 @@ _GLOBAL(load_up_fpu) #ifndef CONFIG_SMP subi r4,r5,THREAD fromreal(r4) - STL r4,OFF(last_task_used_math)(r3) + PPC_STL r4,OFF(last_task_used_math)(r3) #endif /* CONFIG_SMP */ /* restore registers and return */ /* we haven't used ctr or xer or lr */ @@ -97,24 +97,24 @@ _GLOBAL(giveup_fpu) MTMSRD(r5) /* enable use of fpu now */ SYNC_601 isync - CMPI 0,r3,0 + PPC_LCMPI 0,r3,0 beqlr- /* if no previous owner, done */ addi r3,r3,THREAD /* want THREAD of task */ - LDL r5,PT_REGS(r3) - CMPI 0,r5,0 + PPC_LL r5,PT_REGS(r3) + PPC_LCMPI 0,r5,0 SAVE_32FPRS(0, r3) mffs fr0 stfd fr0,THREAD_FPSCR(r3) beq 1f - LDL r4,_MSR-STACK_FRAME_OVERHEAD(r5) + PPC_LL r4,_MSR-STACK_FRAME_OVERHEAD(r5) li r3,MSR_FP|MSR_FE0|MSR_FE1 andc r4,r4,r3 /* disable FP for previous task */ - STL r4,_MSR-STACK_FRAME_OVERHEAD(r5) + PPC_STL r4,_MSR-STACK_FRAME_OVERHEAD(r5) 1: #ifndef CONFIG_SMP li r5,0 LOADBASE(r4,last_task_used_math) - STL r5,OFF(last_task_used_math)(r4) + PPC_STL r5,OFF(last_task_used_math)(r4) #endif /* CONFIG_SMP */ blr -- cgit v1.1