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authorPaul Brook <paul@codesourcery.com>2009-11-22 21:35:13 +0000
committerPaul Brook <paul@codesourcery.com>2009-11-22 21:35:13 +0000
commit426f5abcaa15d0e59475fdb33b2a4a5fdf492d05 (patch)
treeef9eb63ac19b7ba19fe533d514d3571f21de2b3d /target-arm/cpu.h
parenteee4850422d1d18276c1f4dbb6153b568efcb8b9 (diff)
ARM atomic ops rewrite
Implement ARMv6 atomic ops (ldrex/strex) using the same trick as PPC. Signed-off-by: Paul Brook <paul@codesourcery.com>
Diffstat (limited to 'target-arm/cpu.h')
-rw-r--r--target-arm/cpu.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/target-arm/cpu.h b/target-arm/cpu.h
index a83ce48c4d..4a1c53f24f 100644
--- a/target-arm/cpu.h
+++ b/target-arm/cpu.h
@@ -40,6 +40,7 @@
#define EXCP_BKPT 7
#define EXCP_EXCEPTION_EXIT 8 /* Return from v7M exception. */
#define EXCP_KERNEL_TRAP 9 /* Jumped to kernel code page. */
+#define EXCP_STREX 10
#define ARMV7M_EXCP_RESET 1
#define ARMV7M_EXCP_NMI 2
@@ -180,10 +181,12 @@ typedef struct CPUARMState {
float_status fp_status;
} vfp;
+ uint32_t exclusive_addr;
+ uint32_t exclusive_val;
+ uint32_t exclusive_high;
#if defined(CONFIG_USER_ONLY)
- struct mmon_state *mmon_entry;
-#else
- uint32_t mmon_addr;
+ uint32_t exclusive_test;
+ uint32_t exclusive_info;
#endif
/* iwMMXt coprocessor state. */