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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-01-27 11:14:02 -0500
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-01-27 11:14:02 -0500
commit6c02b7b1610f873888af20f291c07730889ff0f9 (patch)
tree1b33e6642cc81605b8d37c0bda0abff0ba64fa2d /arch/c6x/include/asm/syscall.h
parent7a7546b377bdaa25ac77f33d9433c59f259b9688 (diff)
parentdcd6c92267155e70a94b3927bce681ce74b80d1f (diff)
Merge commit 'v3.3-rc1' into stable/for-linus-fixes-3.3
* commit 'v3.3-rc1': (9775 commits) Linux 3.3-rc1 x86, syscall: Need __ARCH_WANT_SYS_IPC for 32 bits qnx4: don't leak ->BitMap on late failure exits qnx4: reduce the insane nesting in qnx4_checkroot() qnx4: di_fname is an array, for crying out loud... KEYS: Permit key_serial() to be called with a const key pointer keys: fix user_defined key sparse messages ima: fix cred sparse warning uml: fix compile for x86-64 MPILIB: Add a missing ENOMEM check tpm: fix (ACPI S3) suspend regression nvme: fix merge error due to change of 'make_request_fn' fn type xen: using EXPORT_SYMBOL requires including export.h gpio: tps65910: Use correct offset for gpio initialization acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec intel_idle: Split up and provide per CPU initialization func ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2 tg3: Fix single-vector MSI-X code openvswitch: Fix multipart datapath dumps. ipv6: fix per device IP snmp counters ...
Diffstat (limited to 'arch/c6x/include/asm/syscall.h')
-rw-r--r--arch/c6x/include/asm/syscall.h123
1 files changed, 123 insertions, 0 deletions
diff --git a/arch/c6x/include/asm/syscall.h b/arch/c6x/include/asm/syscall.h
new file mode 100644
index 000000000000..ae2be315ee9c
--- /dev/null
+++ b/arch/c6x/include/asm/syscall.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2011 Texas Instruments Incorporated
+ * Author: Mark Salter <msalter@redhat.com>
+ *
+ * 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.
+ */
+
+#ifndef __ASM_C6X_SYSCALL_H
+#define __ASM_C6X_SYSCALL_H
+
+#include <linux/err.h>
+#include <linux/sched.h>
+
+static inline int syscall_get_nr(struct task_struct *task,
+ struct pt_regs *regs)
+{
+ return regs->b0;
+}
+
+static inline void syscall_rollback(struct task_struct *task,
+ struct pt_regs *regs)
+{
+ /* do nothing */
+}
+
+static inline long syscall_get_error(struct task_struct *task,
+ struct pt_regs *regs)
+{
+ return IS_ERR_VALUE(regs->a4) ? regs->a4 : 0;
+}
+
+static inline long syscall_get_return_value(struct task_struct *task,
+ struct pt_regs *regs)
+{
+ return regs->a4;
+}
+
+static inline void syscall_set_return_value(struct task_struct *task,
+ struct pt_regs *regs,
+ int error, long val)
+{
+ regs->a4 = error ?: val;
+}
+
+static inline void syscall_get_arguments(struct task_struct *task,
+ struct pt_regs *regs, unsigned int i,
+ unsigned int n, unsigned long *args)
+{
+ switch (i) {
+ case 0:
+ if (!n--)
+ break;
+ *args++ = regs->a4;
+ case 1:
+ if (!n--)
+ break;
+ *args++ = regs->b4;
+ case 2:
+ if (!n--)
+ break;
+ *args++ = regs->a6;
+ case 3:
+ if (!n--)
+ break;
+ *args++ = regs->b6;
+ case 4:
+ if (!n--)
+ break;
+ *args++ = regs->a8;
+ case 5:
+ if (!n--)
+ break;
+ *args++ = regs->b8;
+ case 6:
+ if (!n--)
+ break;
+ default:
+ BUG();
+ }
+}
+
+static inline void syscall_set_arguments(struct task_struct *task,
+ struct pt_regs *regs,
+ unsigned int i, unsigned int n,
+ const unsigned long *args)
+{
+ switch (i) {
+ case 0:
+ if (!n--)
+ break;
+ regs->a4 = *args++;
+ case 1:
+ if (!n--)
+ break;
+ regs->b4 = *args++;
+ case 2:
+ if (!n--)
+ break;
+ regs->a6 = *args++;
+ case 3:
+ if (!n--)
+ break;
+ regs->b6 = *args++;
+ case 4:
+ if (!n--)
+ break;
+ regs->a8 = *args++;
+ case 5:
+ if (!n--)
+ break;
+ regs->a9 = *args++;
+ case 6:
+ if (!n)
+ break;
+ default:
+ BUG();
+ }
+}
+
+#endif /* __ASM_C6X_SYSCALLS_H */