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-rw-r--r--arch/arm/vfp/entry.S23
1 files changed, 19 insertions, 4 deletions
diff --git a/arch/arm/vfp/entry.S b/arch/arm/vfp/entry.S
index ba592a9e6fb3..a2bed62aec21 100644
--- a/arch/arm/vfp/entry.S
+++ b/arch/arm/vfp/entry.S
@@ -15,13 +15,16 @@
15 * r10 = thread_info structure 15 * r10 = thread_info structure
16 * lr = failure return 16 * lr = failure return
17 */ 17 */
18#include <linux/linkage.h> 18#include <asm/thread_info.h>
19#include <linux/init.h>
20#include <asm/asm-offsets.h>
21#include <asm/assembler.h>
22#include <asm/vfpmacros.h> 19#include <asm/vfpmacros.h>
20#include "../kernel/entry-header.S"
23 21
24ENTRY(do_vfp) 22ENTRY(do_vfp)
23#ifdef CONFIG_PREEMPT
24 ldr r4, [r10, #TI_PREEMPT] @ get preempt count
25 add r11, r4, #1 @ increment it
26 str r11, [r10, #TI_PREEMPT]
27#endif
25 enable_irq 28 enable_irq
26 ldr r4, .LCvfp 29 ldr r4, .LCvfp
27 ldr r11, [r10, #TI_CPU] @ CPU number 30 ldr r11, [r10, #TI_CPU] @ CPU number
@@ -30,6 +33,12 @@ ENTRY(do_vfp)
30ENDPROC(do_vfp) 33ENDPROC(do_vfp)
31 34
32ENTRY(vfp_null_entry) 35ENTRY(vfp_null_entry)
36#ifdef CONFIG_PREEMPT
37 get_thread_info r10
38 ldr r4, [r10, #TI_PREEMPT] @ get preempt count
39 sub r11, r4, #1 @ decrement it
40 str r11, [r10, #TI_PREEMPT]
41#endif
33 mov pc, lr 42 mov pc, lr
34ENDPROC(vfp_null_entry) 43ENDPROC(vfp_null_entry)
35 44
@@ -41,6 +50,12 @@ ENDPROC(vfp_null_entry)
41 50
42 __INIT 51 __INIT
43ENTRY(vfp_testing_entry) 52ENTRY(vfp_testing_entry)
53#ifdef CONFIG_PREEMPT
54 get_thread_info r10
55 ldr r4, [r10, #TI_PREEMPT] @ get preempt count
56 sub r11, r4, #1 @ decrement it
57 str r11, [r10, #TI_PREEMPT]
58#endif
44 ldr r0, VFP_arch_address 59 ldr r0, VFP_arch_address
45 str r5, [r0] @ known non-zero value 60 str r5, [r0] @ known non-zero value
46 mov pc, r9 @ we have handled the fault 61 mov pc, r9 @ we have handled the fault