diff options
Diffstat (limited to 'arch/arm/mm/proc-arm1020.S')
| -rw-r--r-- | arch/arm/mm/proc-arm1020.S | 89 |
1 files changed, 42 insertions, 47 deletions
diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S index 774ef1323554..4612a4961e81 100644 --- a/arch/arm/mm/proc-arm1020.S +++ b/arch/arm/mm/proc-arm1020.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * linux/arch/arm/mm/proc-arm1020.S: MMU functions for ARM1020 * @@ -5,31 +6,17 @@ * Copyright (C) 2000 Deep Blue Solutions Ltd. * hacked for non-paged-MM by Hyok S. Choi, 2003. * - * 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 of the License, 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 - * - * * These are the low level assembler for performing cache and TLB * functions on the arm1020. */ #include <linux/linkage.h> #include <linux/init.h> +#include <linux/cfi_types.h> +#include <linux/pgtable.h> #include <asm/assembler.h> #include <asm/asm-offsets.h> #include <asm/hwcap.h> #include <asm/pgtable-hwdef.h> -#include <asm/pgtable.h> #include <asm/ptrace.h> #include "proc-macros.S" @@ -70,18 +57,20 @@ /* * cpu_arm1020_proc_init() */ -ENTRY(cpu_arm1020_proc_init) +SYM_TYPED_FUNC_START(cpu_arm1020_proc_init) ret lr +SYM_FUNC_END(cpu_arm1020_proc_init) /* * cpu_arm1020_proc_fin() */ -ENTRY(cpu_arm1020_proc_fin) +SYM_TYPED_FUNC_START(cpu_arm1020_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x1000 @ ...i............ bic r0, r0, #0x000e @ ............wca. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_arm1020_proc_fin) /* * cpu_arm1020_reset(loc) @@ -94,7 +83,7 @@ ENTRY(cpu_arm1020_proc_fin) */ .align 5 .pushsection .idmap.text, "ax" -ENTRY(cpu_arm1020_reset) +SYM_TYPED_FUNC_START(cpu_arm1020_reset) mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches mcr p15, 0, ip, c7, c10, 4 @ drain WB @@ -106,16 +95,17 @@ ENTRY(cpu_arm1020_reset) bic ip, ip, #0x1100 @ ...i...s........ mcr p15, 0, ip, c1, c0, 0 @ ctrl register ret r0 -ENDPROC(cpu_arm1020_reset) +SYM_FUNC_END(cpu_arm1020_reset) .popsection /* * cpu_arm1020_do_idle() */ .align 5 -ENTRY(cpu_arm1020_do_idle) +SYM_TYPED_FUNC_START(cpu_arm1020_do_idle) mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt ret lr +SYM_FUNC_END(cpu_arm1020_do_idle) /* ================================= CACHE ================================ */ @@ -126,13 +116,13 @@ ENTRY(cpu_arm1020_do_idle) * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(arm1020_flush_icache_all) +SYM_TYPED_FUNC_START(arm1020_flush_icache_all) #ifndef CONFIG_CPU_ICACHE_DISABLE mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache #endif ret lr -ENDPROC(arm1020_flush_icache_all) +SYM_FUNC_END(arm1020_flush_icache_all) /* * flush_user_cache_all() @@ -140,14 +130,14 @@ ENDPROC(arm1020_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -ENTRY(arm1020_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_FUNC_ALIAS(arm1020_flush_user_cache_all, arm1020_flush_kern_cache_all) + /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(arm1020_flush_kern_cache_all) +SYM_TYPED_FUNC_START(arm1020_flush_kern_cache_all) mov r2, #VM_EXEC mov ip, #0 __flush_whole_cache: @@ -168,6 +158,7 @@ __flush_whole_cache: #endif mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1020_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -179,7 +170,7 @@ __flush_whole_cache: * - end - end address (exclusive) * - flags - vm_flags for this space */ -ENTRY(arm1020_flush_user_cache_range) +SYM_TYPED_FUNC_START(arm1020_flush_user_cache_range) mov ip, #0 sub r3, r1, r0 @ calculate total size cmp r3, #CACHE_DLIMIT @@ -199,6 +190,7 @@ ENTRY(arm1020_flush_user_cache_range) #endif mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1020_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -210,8 +202,11 @@ ENTRY(arm1020_flush_user_cache_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm1020_coherent_kern_range) - /* FALLTRHOUGH */ +SYM_TYPED_FUNC_START(arm1020_coherent_kern_range) +#ifdef CONFIG_CFI /* Fallthrough if !CFI */ + b arm1020_coherent_user_range +#endif +SYM_FUNC_END(arm1020_coherent_kern_range) /* * coherent_user_range(start, end) @@ -223,7 +218,7 @@ ENTRY(arm1020_coherent_kern_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm1020_coherent_user_range) +SYM_TYPED_FUNC_START(arm1020_coherent_user_range) mov ip, #0 bic r0, r0, #CACHE_DLINESIZE - 1 mcr p15, 0, ip, c7, c10, 4 @@ -241,6 +236,7 @@ ENTRY(arm1020_coherent_user_range) mcr p15, 0, ip, c7, c10, 4 @ drain WB mov r0, #0 ret lr +SYM_FUNC_END(arm1020_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -251,7 +247,7 @@ ENTRY(arm1020_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(arm1020_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(arm1020_flush_kern_dcache_area) mov ip, #0 #ifndef CONFIG_CPU_DCACHE_DISABLE add r1, r0, r1 @@ -263,6 +259,7 @@ ENTRY(arm1020_flush_kern_dcache_area) #endif mcr p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1020_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -328,7 +325,7 @@ arm1020_dma_clean_range: * - start - virtual start address * - end - virtual end address */ -ENTRY(arm1020_dma_flush_range) +SYM_TYPED_FUNC_START(arm1020_dma_flush_range) mov ip, #0 #ifndef CONFIG_CPU_DCACHE_DISABLE bic r0, r0, #CACHE_DLINESIZE - 1 @@ -341,6 +338,7 @@ ENTRY(arm1020_dma_flush_range) #endif mcr p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1020_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -348,13 +346,13 @@ ENTRY(arm1020_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(arm1020_dma_map_area) +SYM_TYPED_FUNC_START(arm1020_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq arm1020_dma_clean_range bcs arm1020_dma_inv_range b arm1020_dma_flush_range -ENDPROC(arm1020_dma_map_area) +SYM_FUNC_END(arm1020_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -362,18 +360,12 @@ ENDPROC(arm1020_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(arm1020_dma_unmap_area) +SYM_TYPED_FUNC_START(arm1020_dma_unmap_area) ret lr -ENDPROC(arm1020_dma_unmap_area) - - .globl arm1020_flush_kern_cache_louis - .equ arm1020_flush_kern_cache_louis, arm1020_flush_kern_cache_all - - @ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S) - define_cache_functions arm1020 +SYM_FUNC_END(arm1020_dma_unmap_area) .align 5 -ENTRY(cpu_arm1020_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_arm1020_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_DISABLE mov ip, #0 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry @@ -383,6 +375,7 @@ ENTRY(cpu_arm1020_dcache_clean_area) bhi 1b #endif ret lr +SYM_FUNC_END(cpu_arm1020_dcache_clean_area) /* =============================== PageTable ============================== */ @@ -394,7 +387,7 @@ ENTRY(cpu_arm1020_dcache_clean_area) * pgd: new page tables */ .align 5 -ENTRY(cpu_arm1020_switch_mm) +SYM_TYPED_FUNC_START(cpu_arm1020_switch_mm) #ifdef CONFIG_MMU #ifndef CONFIG_CPU_DCACHE_DISABLE mcr p15, 0, r3, c7, c10, 4 @@ -422,14 +415,15 @@ ENTRY(cpu_arm1020_switch_mm) mcr p15, 0, r1, c8, c7, 0 @ invalidate I & D TLBs #endif /* CONFIG_MMU */ ret lr - +SYM_FUNC_END(cpu_arm1020_switch_mm) + /* * cpu_arm1020_set_pte(ptep, pte) * * Set a PTE and flush it out */ .align 5 -ENTRY(cpu_arm1020_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_arm1020_set_pte_ext) #ifdef CONFIG_MMU armv3_set_pte_ext mov r0, r0 @@ -440,6 +434,7 @@ ENTRY(cpu_arm1020_set_pte_ext) mcr p15, 0, r0, c7, c10, 4 @ drain WB #endif /* CONFIG_MMU */ ret lr +SYM_FUNC_END(cpu_arm1020_set_pte_ext) .type __arm1020_setup, #function __arm1020_setup: @@ -505,7 +500,7 @@ cpu_arm1020_name: .align - .section ".proc.info.init", #alloc + .section ".proc.info.init", "a" .type __arm1020_proc_info,#object __arm1020_proc_info: |