diff options
Diffstat (limited to 'arch/arm/mm/proc-arm946.S')
| -rw-r--r-- | arch/arm/mm/proc-arm946.S | 65 |
1 files changed, 37 insertions, 28 deletions
diff --git a/arch/arm/mm/proc-arm946.S b/arch/arm/mm/proc-arm946.S index 6fb3898ad1cd..27750ace2ced 100644 --- a/arch/arm/mm/proc-arm946.S +++ b/arch/arm/mm/proc-arm946.S @@ -8,6 +8,7 @@ */ #include <linux/linkage.h> #include <linux/init.h> +#include <linux/cfi_types.h> #include <linux/pgtable.h> #include <asm/assembler.h> #include <asm/hwcap.h> @@ -32,19 +33,24 @@ * * These are not required. */ -ENTRY(cpu_arm946_proc_init) -ENTRY(cpu_arm946_switch_mm) +SYM_TYPED_FUNC_START(cpu_arm946_proc_init) ret lr +SYM_FUNC_END(cpu_arm946_proc_init) + +SYM_TYPED_FUNC_START(cpu_arm946_switch_mm) + ret lr +SYM_FUNC_END(cpu_arm946_switch_mm) /* * cpu_arm946_proc_fin() */ -ENTRY(cpu_arm946_proc_fin) +SYM_TYPED_FUNC_START(cpu_arm946_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x00001000 @ i-cache bic r0, r0, #0x00000004 @ d-cache mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_arm946_proc_fin) /* * cpu_arm946_reset(loc) @@ -52,7 +58,7 @@ ENTRY(cpu_arm946_proc_fin) * Notes : This sets up everything for a reset */ .pushsection .idmap.text, "ax" -ENTRY(cpu_arm946_reset) +SYM_TYPED_FUNC_START(cpu_arm946_reset) mov ip, #0 mcr p15, 0, ip, c7, c5, 0 @ flush I cache mcr p15, 0, ip, c7, c6, 0 @ flush D cache @@ -62,40 +68,40 @@ ENTRY(cpu_arm946_reset) bic ip, ip, #0x00001000 @ i-cache mcr p15, 0, ip, c1, c0, 0 @ ctrl register ret r0 -ENDPROC(cpu_arm946_reset) +SYM_FUNC_END(cpu_arm946_reset) .popsection /* * cpu_arm946_do_idle() */ .align 5 -ENTRY(cpu_arm946_do_idle) +SYM_TYPED_FUNC_START(cpu_arm946_do_idle) mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt ret lr +SYM_FUNC_END(cpu_arm946_do_idle) /* * flush_icache_all() * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(arm946_flush_icache_all) +SYM_TYPED_FUNC_START(arm946_flush_icache_all) mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache ret lr -ENDPROC(arm946_flush_icache_all) +SYM_FUNC_END(arm946_flush_icache_all) /* * flush_user_cache_all() */ -ENTRY(arm946_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_FUNC_ALIAS(arm946_flush_user_cache_all, arm946_flush_kern_cache_all) /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(arm946_flush_kern_cache_all) +SYM_TYPED_FUNC_START(arm946_flush_kern_cache_all) mov r2, #VM_EXEC mov ip, #0 __flush_whole_cache: @@ -114,6 +120,7 @@ __flush_whole_cache: mcrne p15, 0, ip, c7, c5, 0 @ flush I cache mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm946_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -126,7 +133,7 @@ __flush_whole_cache: * - flags - vm_flags describing address space * (same as arm926) */ -ENTRY(arm946_flush_user_cache_range) +SYM_TYPED_FUNC_START(arm946_flush_user_cache_range) mov ip, #0 sub r3, r1, r0 @ calculate total size cmp r3, #CACHE_DLIMIT @@ -153,6 +160,7 @@ ENTRY(arm946_flush_user_cache_range) tst r2, #VM_EXEC mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm946_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -164,8 +172,11 @@ ENTRY(arm946_flush_user_cache_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm946_coherent_kern_range) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm946_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ + b arm946_coherent_user_range +#endif +SYM_FUNC_END(arm946_coherent_kern_range) /* * coherent_user_range(start, end) @@ -178,7 +189,7 @@ ENTRY(arm946_coherent_kern_range) * - end - virtual end address * (same as arm926) */ -ENTRY(arm946_coherent_user_range) +SYM_TYPED_FUNC_START(arm946_coherent_user_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry mcr p15, 0, r0, c7, c5, 1 @ invalidate I entry @@ -188,6 +199,7 @@ ENTRY(arm946_coherent_user_range) mcr p15, 0, r0, c7, c10, 4 @ drain WB mov r0, #0 ret lr +SYM_FUNC_END(arm946_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -199,7 +211,7 @@ ENTRY(arm946_coherent_user_range) * - size - region size * (same as arm926) */ -ENTRY(arm946_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(arm946_flush_kern_dcache_area) add r1, r0, r1 1: mcr p15, 0, r0, c7, c14, 1 @ clean+invalidate D entry add r0, r0, #CACHE_DLINESIZE @@ -209,6 +221,7 @@ ENTRY(arm946_flush_kern_dcache_area) mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm946_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -268,7 +281,7 @@ arm946_dma_clean_range: * * (same as arm926) */ -ENTRY(arm946_dma_flush_range) +SYM_TYPED_FUNC_START(arm946_dma_flush_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH @@ -281,6 +294,7 @@ ENTRY(arm946_dma_flush_range) blo 1b mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm946_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -288,13 +302,13 @@ ENTRY(arm946_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(arm946_dma_map_area) +SYM_TYPED_FUNC_START(arm946_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq arm946_dma_clean_range bcs arm946_dma_inv_range b arm946_dma_flush_range -ENDPROC(arm946_dma_map_area) +SYM_FUNC_END(arm946_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -302,17 +316,11 @@ ENDPROC(arm946_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(arm946_dma_unmap_area) +SYM_TYPED_FUNC_START(arm946_dma_unmap_area) ret lr -ENDPROC(arm946_dma_unmap_area) - - .globl arm946_flush_kern_cache_louis - .equ arm946_flush_kern_cache_louis, arm946_flush_kern_cache_all - - @ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S) - define_cache_functions arm946 +SYM_FUNC_END(arm946_dma_unmap_area) -ENTRY(cpu_arm946_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_arm946_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, #CACHE_DLINESIZE @@ -321,6 +329,7 @@ ENTRY(cpu_arm946_dcache_clean_area) #endif mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(cpu_arm946_dcache_clean_area) .type __arm946_setup, #function __arm946_setup: |