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-rw-r--r--arch/xtensa/include/asm/Kbuild1
-rw-r--r--arch/xtensa/include/asm/atomic.h235
-rw-r--r--arch/xtensa/include/uapi/asm/ioctls.h2
-rw-r--r--arch/xtensa/kernel/ptrace.c2
4 files changed, 87 insertions, 153 deletions
diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index c3d20ba6eb86..105d38922c44 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -12,6 +12,7 @@ generic-y += hardirq.h
generic-y += hash.h
generic-y += ioctl.h
generic-y += irq_regs.h
+generic-y += irq_work.h
generic-y += kdebug.h
generic-y += kmap_types.h
generic-y += kvm_para.h
diff --git a/arch/xtensa/include/asm/atomic.h b/arch/xtensa/include/asm/atomic.h
index e5103b47a8ce..00b7d46b35b8 100644
--- a/arch/xtensa/include/asm/atomic.h
+++ b/arch/xtensa/include/asm/atomic.h
@@ -47,7 +47,7 @@
*
* Atomically reads the value of @v.
*/
-#define atomic_read(v) (*(volatile int *)&(v)->counter)
+#define atomic_read(v) ACCESS_ONCE((v)->counter)
/**
* atomic_set - set atomic variable
@@ -58,165 +58,96 @@
*/
#define atomic_set(v,i) ((v)->counter = (i))
-/**
- * atomic_add - add integer to atomic variable
- * @i: integer value to add
- * @v: pointer of type atomic_t
- *
- * Atomically adds @i to @v.
- */
-static inline void atomic_add(int i, atomic_t * v)
-{
#if XCHAL_HAVE_S32C1I
- unsigned long tmp;
- int result;
-
- __asm__ __volatile__(
- "1: l32i %1, %3, 0\n"
- " wsr %1, scompare1\n"
- " add %0, %1, %2\n"
- " s32c1i %0, %3, 0\n"
- " bne %0, %1, 1b\n"
- : "=&a" (result), "=&a" (tmp)
- : "a" (i), "a" (v)
- : "memory"
- );
-#else
- unsigned int vval;
-
- __asm__ __volatile__(
- " rsil a15, "__stringify(LOCKLEVEL)"\n"
- " l32i %0, %2, 0\n"
- " add %0, %0, %1\n"
- " s32i %0, %2, 0\n"
- " wsr a15, ps\n"
- " rsync\n"
- : "=&a" (vval)
- : "a" (i), "a" (v)
- : "a15", "memory"
- );
-#endif
-}
-
-/**
- * atomic_sub - subtract the atomic variable
- * @i: integer value to subtract
- * @v: pointer of type atomic_t
- *
- * Atomically subtracts @i from @v.
- */
-static inline void atomic_sub(int i, atomic_t *v)
-{
-#if XCHAL_HAVE_S32C1I
- unsigned long tmp;
- int result;
-
- __asm__ __volatile__(
- "1: l32i %1, %3, 0\n"
- " wsr %1, scompare1\n"
- " sub %0, %1, %2\n"
- " s32c1i %0, %3, 0\n"
- " bne %0, %1, 1b\n"
- : "=&a" (result), "=&a" (tmp)
- : "a" (i), "a" (v)
- : "memory"
- );
-#else
- unsigned int vval;
-
- __asm__ __volatile__(
- " rsil a15, "__stringify(LOCKLEVEL)"\n"
- " l32i %0, %2, 0\n"
- " sub %0, %0, %1\n"
- " s32i %0, %2, 0\n"
- " wsr a15, ps\n"
- " rsync\n"
- : "=&a" (vval)
- : "a" (i), "a" (v)
- : "a15", "memory"
- );
-#endif
+#define ATOMIC_OP(op) \
+static inline void atomic_##op(int i, atomic_t * v) \
+{ \
+ unsigned long tmp; \
+ int result; \
+ \
+ __asm__ __volatile__( \
+ "1: l32i %1, %3, 0\n" \
+ " wsr %1, scompare1\n" \
+ " " #op " %0, %1, %2\n" \
+ " s32c1i %0, %3, 0\n" \
+ " bne %0, %1, 1b\n" \
+ : "=&a" (result), "=&a" (tmp) \
+ : "a" (i), "a" (v) \
+ : "memory" \
+ ); \
+} \
+
+#define ATOMIC_OP_RETURN(op) \
+static inline int atomic_##op##_return(int i, atomic_t * v) \
+{ \
+ unsigned long tmp; \
+ int result; \
+ \
+ __asm__ __volatile__( \
+ "1: l32i %1, %3, 0\n" \
+ " wsr %1, scompare1\n" \
+ " " #op " %0, %1, %2\n" \
+ " s32c1i %0, %3, 0\n" \
+ " bne %0, %1, 1b\n" \
+ " " #op " %0, %0, %2\n" \
+ : "=&a" (result), "=&a" (tmp) \
+ : "a" (i), "a" (v) \
+ : "memory" \
+ ); \
+ \
+ return result; \
}
-/*
- * We use atomic_{add|sub}_return to define other functions.
- */
-
-static inline int atomic_add_return(int i, atomic_t * v)
-{
-#if XCHAL_HAVE_S32C1I
- unsigned long tmp;
- int result;
-
- __asm__ __volatile__(
- "1: l32i %1, %3, 0\n"
- " wsr %1, scompare1\n"
- " add %0, %1, %2\n"
- " s32c1i %0, %3, 0\n"
- " bne %0, %1, 1b\n"
- " add %0, %0, %2\n"
- : "=&a" (result), "=&a" (tmp)
- : "a" (i), "a" (v)
- : "memory"
- );
-
- return result;
-#else
- unsigned int vval;
-
- __asm__ __volatile__(
- " rsil a15,"__stringify(LOCKLEVEL)"\n"
- " l32i %0, %2, 0\n"
- " add %0, %0, %1\n"
- " s32i %0, %2, 0\n"
- " wsr a15, ps\n"
- " rsync\n"
- : "=&a" (vval)
- : "a" (i), "a" (v)
- : "a15", "memory"
- );
-
- return vval;
-#endif
+#else /* XCHAL_HAVE_S32C1I */
+
+#define ATOMIC_OP(op) \
+static inline void atomic_##op(int i, atomic_t * v) \
+{ \
+ unsigned int vval; \
+ \
+ __asm__ __volatile__( \
+ " rsil a15, "__stringify(LOCKLEVEL)"\n"\
+ " l32i %0, %2, 0\n" \
+ " " #op " %0, %0, %1\n" \
+ " s32i %0, %2, 0\n" \
+ " wsr a15, ps\n" \
+ " rsync\n" \
+ : "=&a" (vval) \
+ : "a" (i), "a" (v) \
+ : "a15", "memory" \
+ ); \
+} \
+
+#define ATOMIC_OP_RETURN(op) \
+static inline int atomic_##op##_return(int i, atomic_t * v) \
+{ \
+ unsigned int vval; \
+ \
+ __asm__ __volatile__( \
+ " rsil a15,"__stringify(LOCKLEVEL)"\n" \
+ " l32i %0, %2, 0\n" \
+ " " #op " %0, %0, %1\n" \
+ " s32i %0, %2, 0\n" \
+ " wsr a15, ps\n" \
+ " rsync\n" \
+ : "=&a" (vval) \
+ : "a" (i), "a" (v) \
+ : "a15", "memory" \
+ ); \
+ \
+ return vval; \
}
-static inline int atomic_sub_return(int i, atomic_t * v)
-{
-#if XCHAL_HAVE_S32C1I
- unsigned long tmp;
- int result;
+#endif /* XCHAL_HAVE_S32C1I */
- __asm__ __volatile__(
- "1: l32i %1, %3, 0\n"
- " wsr %1, scompare1\n"
- " sub %0, %1, %2\n"
- " s32c1i %0, %3, 0\n"
- " bne %0, %1, 1b\n"
- " sub %0, %0, %2\n"
- : "=&a" (result), "=&a" (tmp)
- : "a" (i), "a" (v)
- : "memory"
- );
+#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op)
- return result;
-#else
- unsigned int vval;
-
- __asm__ __volatile__(
- " rsil a15,"__stringify(LOCKLEVEL)"\n"
- " l32i %0, %2, 0\n"
- " sub %0, %0, %1\n"
- " s32i %0, %2, 0\n"
- " wsr a15, ps\n"
- " rsync\n"
- : "=&a" (vval)
- : "a" (i), "a" (v)
- : "a15", "memory"
- );
+ATOMIC_OPS(add)
+ATOMIC_OPS(sub)
- return vval;
-#endif
-}
+#undef ATOMIC_OPS
+#undef ATOMIC_OP_RETURN
+#undef ATOMIC_OP
/**
* atomic_sub_and_test - subtract value from variable and test result
diff --git a/arch/xtensa/include/uapi/asm/ioctls.h b/arch/xtensa/include/uapi/asm/ioctls.h
index a47909f0c34b..518954e74e6d 100644
--- a/arch/xtensa/include/uapi/asm/ioctls.h
+++ b/arch/xtensa/include/uapi/asm/ioctls.h
@@ -95,6 +95,8 @@
#define TCSETS2 _IOW('T', 43, struct termios2)
#define TCSETSW2 _IOW('T', 44, struct termios2)
#define TCSETSF2 _IOW('T', 45, struct termios2)
+#define TIOCGRS485 _IOR('T', 46, struct serial_rs485)
+#define TIOCSRS485 _IOWR('T', 47, struct serial_rs485)
#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */
diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
index 562fac664751..4d54b481123b 100644
--- a/arch/xtensa/kernel/ptrace.c
+++ b/arch/xtensa/kernel/ptrace.c
@@ -342,7 +342,7 @@ void do_syscall_trace_enter(struct pt_regs *regs)
do_syscall_trace();
#if 0
- audit_syscall_entry(current, AUDIT_ARCH_XTENSA..);
+ audit_syscall_entry(...);
#endif
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-22 20:42:44 +0000