diff options
Diffstat (limited to 'arch/parisc/kernel/pacache.S')
| -rw-r--r-- | arch/parisc/kernel/pacache.S | 58 |
1 files changed, 1 insertions, 57 deletions
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S index 187f032c9dd8..ba67893a1d72 100644 --- a/arch/parisc/kernel/pacache.S +++ b/arch/parisc/kernel/pacache.S @@ -1,22 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * PARISC TLB and cache flushing support * Copyright (C) 2000-2001 Hewlett-Packard (John Marvin) * Copyright (C) 2001 Matthew Wilcox (willy at parisc-linux.org) * Copyright (C) 2002 Richard Hirst (rhirst with parisc-linux.org) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* @@ -311,39 +298,6 @@ fdsync: nop ENDPROC_CFI(flush_data_cache_local) -/* Macros to serialize TLB purge operations on SMP. */ - - .macro tlb_lock la,flags,tmp -#ifdef CONFIG_SMP -98: -#if __PA_LDCW_ALIGNMENT > 4 - load32 pa_tlb_lock + __PA_LDCW_ALIGNMENT-1, \la - depi 0,31,__PA_LDCW_ALIGN_ORDER, \la -#else - load32 pa_tlb_lock, \la -#endif - rsm PSW_SM_I,\flags -1: LDCW 0(\la),\tmp - cmpib,<>,n 0,\tmp,3f -2: ldw 0(\la),\tmp - cmpb,<> %r0,\tmp,1b - nop - b,n 2b -3: -99: ALTERNATIVE(98b, 99b, ALT_COND_NO_SMP, INSN_NOP) -#endif - .endm - - .macro tlb_unlock la,flags,tmp -#ifdef CONFIG_SMP -98: ldi 1,\tmp - sync - stw \tmp,0(\la) - mtsm \flags -99: ALTERNATIVE(98b, 99b, ALT_COND_NO_SMP, INSN_NOP) -#endif - .endm - /* Clear page using kernel mapping. */ ENTRY_CFI(clear_page_asm) @@ -601,10 +555,8 @@ ENTRY_CFI(copy_user_page_asm) pdtlb,l %r0(%r28) pdtlb,l %r0(%r29) #else - tlb_lock %r20,%r21,%r22 0: pdtlb %r0(%r28) 1: pdtlb %r0(%r29) - tlb_unlock %r20,%r21,%r22 ALTERNATIVE(0b, 0b+4, ALT_COND_NO_SMP, INSN_PxTLB) ALTERNATIVE(1b, 1b+4, ALT_COND_NO_SMP, INSN_PxTLB) #endif @@ -743,9 +695,7 @@ ENTRY_CFI(clear_user_page_asm) #ifdef CONFIG_PA20 pdtlb,l %r0(%r28) #else - tlb_lock %r20,%r21,%r22 0: pdtlb %r0(%r28) - tlb_unlock %r20,%r21,%r22 ALTERNATIVE(0b, 0b+4, ALT_COND_NO_SMP, INSN_PxTLB) #endif @@ -821,9 +771,7 @@ ENTRY_CFI(flush_dcache_page_asm) #ifdef CONFIG_PA20 pdtlb,l %r0(%r28) #else - tlb_lock %r20,%r21,%r22 0: pdtlb %r0(%r28) - tlb_unlock %r20,%r21,%r22 ALTERNATIVE(0b, 0b+4, ALT_COND_NO_SMP, INSN_PxTLB) #endif @@ -882,9 +830,7 @@ ENTRY_CFI(purge_dcache_page_asm) #ifdef CONFIG_PA20 pdtlb,l %r0(%r28) #else - tlb_lock %r20,%r21,%r22 0: pdtlb %r0(%r28) - tlb_unlock %r20,%r21,%r22 ALTERNATIVE(0b, 0b+4, ALT_COND_NO_SMP, INSN_PxTLB) #endif @@ -948,10 +894,8 @@ ENTRY_CFI(flush_icache_page_asm) 1: pitlb,l %r0(%sr4,%r28) ALTERNATIVE(1b, 1b+4, ALT_COND_NO_SPLIT_TLB, INSN_NOP) #else - tlb_lock %r20,%r21,%r22 0: pdtlb %r0(%r28) 1: pitlb %r0(%sr4,%r28) - tlb_unlock %r20,%r21,%r22 ALTERNATIVE(0b, 0b+4, ALT_COND_NO_SMP, INSN_PxTLB) ALTERNATIVE(1b, 1b+4, ALT_COND_NO_SMP, INSN_PxTLB) ALTERNATIVE(1b, 1b+4, ALT_COND_NO_SPLIT_TLB, INSN_NOP) |