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-rw-r--r--arch/xtensa/include/asm/Kbuild3
-rw-r--r--arch/xtensa/include/asm/asm-uaccess.h2
-rw-r--r--arch/xtensa/include/asm/cmpxchg.h36
-rw-r--r--arch/xtensa/include/asm/spinlock.h185
-rw-r--r--arch/xtensa/include/asm/spinlock_types.h15
-rw-r--r--arch/xtensa/include/asm/thread_info.h9
-rw-r--r--arch/xtensa/include/asm/uaccess.h1
-rw-r--r--arch/xtensa/include/asm/unistd.h14
-rw-r--r--arch/xtensa/include/uapi/asm/Kbuild1
-rw-r--r--arch/xtensa/include/uapi/asm/mman.h4
-rw-r--r--arch/xtensa/include/uapi/asm/socket.h122
11 files changed, 44 insertions, 348 deletions
diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index e255683cd520..d939e13e8d84 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -23,8 +23,11 @@ generic-y += mm-arch-hooks.h
generic-y += param.h
generic-y += percpu.h
generic-y += preempt.h
+generic-y += qrwlock.h
+generic-y += qspinlock.h
generic-y += rwsem.h
generic-y += sections.h
+generic-y += socket.h
generic-y += topology.h
generic-y += trace_clock.h
generic-y += vga.h
diff --git a/arch/xtensa/include/asm/asm-uaccess.h b/arch/xtensa/include/asm/asm-uaccess.h
index dfdf9fae1f84..7f6cf4151843 100644
--- a/arch/xtensa/include/asm/asm-uaccess.h
+++ b/arch/xtensa/include/asm/asm-uaccess.h
@@ -32,8 +32,6 @@
#define KERNEL_DS 0
#define USER_DS 1
-#define get_ds (KERNEL_DS)
-
/*
* get_fs reads current->thread.current_ds into a register.
* On Entry:
diff --git a/arch/xtensa/include/asm/cmpxchg.h b/arch/xtensa/include/asm/cmpxchg.h
index 201e9009efd8..22a10c715c1f 100644
--- a/arch/xtensa/include/asm/cmpxchg.h
+++ b/arch/xtensa/include/asm/cmpxchg.h
@@ -13,6 +13,7 @@
#ifndef __ASSEMBLY__
+#include <linux/bits.h>
#include <linux/stringify.h>
/*
@@ -138,6 +139,28 @@ static inline unsigned long xchg_u32(volatile int * m, unsigned long val)
#define xchg(ptr,x) \
((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
+static inline u32 xchg_small(volatile void *ptr, u32 x, int size)
+{
+ int off = (unsigned long)ptr % sizeof(u32);
+ volatile u32 *p = ptr - off;
+#ifdef __BIG_ENDIAN
+ int bitoff = (sizeof(u32) - size - off) * BITS_PER_BYTE;
+#else
+ int bitoff = off * BITS_PER_BYTE;
+#endif
+ u32 bitmask = ((0x1 << size * BITS_PER_BYTE) - 1) << bitoff;
+ u32 oldv, newv;
+ u32 ret;
+
+ do {
+ oldv = READ_ONCE(*p);
+ ret = (oldv & bitmask) >> bitoff;
+ newv = (oldv & ~bitmask) | (x << bitoff);
+ } while (__cmpxchg_u32(p, oldv, newv) != oldv);
+
+ return ret;
+}
+
/*
* This only works if the compiler isn't horribly bad at optimizing.
* gcc-2.5.8 reportedly can't handle this, but I define that one to
@@ -150,11 +173,16 @@ static __inline__ unsigned long
__xchg(unsigned long x, volatile void * ptr, int size)
{
switch (size) {
- case 4:
- return xchg_u32(ptr, x);
+ case 1:
+ return xchg_small(ptr, x, 1);
+ case 2:
+ return xchg_small(ptr, x, 2);
+ case 4:
+ return xchg_u32(ptr, x);
+ default:
+ __xchg_called_with_bad_pointer();
+ return x;
}
- __xchg_called_with_bad_pointer();
- return x;
}
#endif /* __ASSEMBLY__ */
diff --git a/arch/xtensa/include/asm/spinlock.h b/arch/xtensa/include/asm/spinlock.h
index c6e1290dcbb7..584b0de6f2ca 100644
--- a/arch/xtensa/include/asm/spinlock.h
+++ b/arch/xtensa/include/asm/spinlock.h
@@ -12,188 +12,9 @@
#define _XTENSA_SPINLOCK_H
#include <asm/barrier.h>
-#include <asm/processor.h>
+#include <asm/qrwlock.h>
+#include <asm/qspinlock.h>
-/*
- * spinlock
- *
- * There is at most one owner of a spinlock. There are not different
- * types of spinlock owners like there are for rwlocks (see below).
- *
- * When trying to obtain a spinlock, the function "spins" forever, or busy-
- * waits, until the lock is obtained. When spinning, presumably some other
- * owner will soon give up the spinlock making it available to others. Use
- * the trylock functions to avoid spinning forever.
- *
- * possible values:
- *
- * 0 nobody owns the spinlock
- * 1 somebody owns the spinlock
- */
-
-#define arch_spin_is_locked(x) ((x)->slock != 0)
-
-static inline void arch_spin_lock(arch_spinlock_t *lock)
-{
- unsigned long tmp;
-
- __asm__ __volatile__(
- " movi %0, 0\n"
- " wsr %0, scompare1\n"
- "1: movi %0, 1\n"
- " s32c1i %0, %1, 0\n"
- " bnez %0, 1b\n"
- : "=&a" (tmp)
- : "a" (&lock->slock)
- : "memory");
-}
-
-/* Returns 1 if the lock is obtained, 0 otherwise. */
-
-static inline int arch_spin_trylock(arch_spinlock_t *lock)
-{
- unsigned long tmp;
-
- __asm__ __volatile__(
- " movi %0, 0\n"
- " wsr %0, scompare1\n"
- " movi %0, 1\n"
- " s32c1i %0, %1, 0\n"
- : "=&a" (tmp)
- : "a" (&lock->slock)
- : "memory");
-
- return tmp == 0 ? 1 : 0;
-}
-
-static inline void arch_spin_unlock(arch_spinlock_t *lock)
-{
- unsigned long tmp;
-
- __asm__ __volatile__(
- " movi %0, 0\n"
- " s32ri %0, %1, 0\n"
- : "=&a" (tmp)
- : "a" (&lock->slock)
- : "memory");
-}
-
-/*
- * rwlock
- *
- * Read-write locks are really a more flexible spinlock. They allow
- * multiple readers but only one writer. Write ownership is exclusive
- * (i.e., all other readers and writers are blocked from ownership while
- * there is a write owner). These rwlocks are unfair to writers. Writers
- * can be starved for an indefinite time by readers.
- *
- * possible values:
- *
- * 0 nobody owns the rwlock
- * >0 one or more readers own the rwlock
- * (the positive value is the actual number of readers)
- * 0x80000000 one writer owns the rwlock, no other writers, no readers
- */
-
-static inline void arch_write_lock(arch_rwlock_t *rw)
-{
- unsigned long tmp;
-
- __asm__ __volatile__(
- " movi %0, 0\n"
- " wsr %0, scompare1\n"
- "1: movi %0, 1\n"
- " slli %0, %0, 31\n"
- " s32c1i %0, %1, 0\n"
- " bnez %0, 1b\n"
- : "=&a" (tmp)
- : "a" (&rw->lock)
- : "memory");
-}
-
-/* Returns 1 if the lock is obtained, 0 otherwise. */
-
-static inline int arch_write_trylock(arch_rwlock_t *rw)
-{
- unsigned long tmp;
-
- __asm__ __volatile__(
- " movi %0, 0\n"
- " wsr %0, scompare1\n"
- " movi %0, 1\n"
- " slli %0, %0, 31\n"
- " s32c1i %0, %1, 0\n"
- : "=&a" (tmp)
- : "a" (&rw->lock)
- : "memory");
-
- return tmp == 0 ? 1 : 0;
-}
-
-static inline void arch_write_unlock(arch_rwlock_t *rw)
-{
- unsigned long tmp;
-
- __asm__ __volatile__(
- " movi %0, 0\n"
- " s32ri %0, %1, 0\n"
- : "=&a" (tmp)
- : "a" (&rw->lock)
- : "memory");
-}
-
-static inline void arch_read_lock(arch_rwlock_t *rw)
-{
- unsigned long tmp;
- unsigned long result;
-
- __asm__ __volatile__(
- "1: l32i %1, %2, 0\n"
- " bltz %1, 1b\n"
- " wsr %1, scompare1\n"
- " addi %0, %1, 1\n"
- " s32c1i %0, %2, 0\n"
- " bne %0, %1, 1b\n"
- : "=&a" (result), "=&a" (tmp)
- : "a" (&rw->lock)
- : "memory");
-}
-
-/* Returns 1 if the lock is obtained, 0 otherwise. */
-
-static inline int arch_read_trylock(arch_rwlock_t *rw)
-{
- unsigned long result;
- unsigned long tmp;
-
- __asm__ __volatile__(
- " l32i %1, %2, 0\n"
- " addi %0, %1, 1\n"
- " bltz %0, 1f\n"
- " wsr %1, scompare1\n"
- " s32c1i %0, %2, 0\n"
- " sub %0, %0, %1\n"
- "1:\n"
- : "=&a" (result), "=&a" (tmp)
- : "a" (&rw->lock)
- : "memory");
-
- return result == 0;
-}
-
-static inline void arch_read_unlock(arch_rwlock_t *rw)
-{
- unsigned long tmp1, tmp2;
-
- __asm__ __volatile__(
- "1: l32i %1, %2, 0\n"
- " addi %0, %1, -1\n"
- " wsr %1, scompare1\n"
- " s32c1i %0, %2, 0\n"
- " bne %0, %1, 1b\n"
- : "=&a" (tmp1), "=&a" (tmp2)
- : "a" (&rw->lock)
- : "memory");
-}
+#define smp_mb__after_spinlock() smp_mb()
#endif /* _XTENSA_SPINLOCK_H */
diff --git a/arch/xtensa/include/asm/spinlock_types.h b/arch/xtensa/include/asm/spinlock_types.h
index bb1fe6c1816e..64c9389254f1 100644
--- a/arch/xtensa/include/asm/spinlock_types.h
+++ b/arch/xtensa/include/asm/spinlock_types.h
@@ -2,20 +2,11 @@
#ifndef __ASM_SPINLOCK_TYPES_H
#define __ASM_SPINLOCK_TYPES_H
-#ifndef __LINUX_SPINLOCK_TYPES_H
+#if !defined(__LINUX_SPINLOCK_TYPES_H) && !defined(__ASM_SPINLOCK_H)
# error "please don't include this file directly"
#endif
-typedef struct {
- volatile unsigned int slock;
-} arch_spinlock_t;
-
-#define __ARCH_SPIN_LOCK_UNLOCKED { 0 }
-
-typedef struct {
- volatile unsigned int lock;
-} arch_rwlock_t;
-
-#define __ARCH_RW_LOCK_UNLOCKED { 0 }
+#include <asm-generic/qspinlock_types.h>
+#include <asm-generic/qrwlock_types.h>
#endif
diff --git a/arch/xtensa/include/asm/thread_info.h b/arch/xtensa/include/asm/thread_info.h
index f333f10a7650..f092cc3f4e66 100644
--- a/arch/xtensa/include/asm/thread_info.h
+++ b/arch/xtensa/include/asm/thread_info.h
@@ -121,15 +121,6 @@ static inline struct thread_info *current_thread_info(void)
#define _TIF_WORK_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \
_TIF_SYSCALL_TRACEPOINT)
-/*
- * Thread-synchronous status.
- *
- * This is different from the flags in that nobody else
- * ever touches our thread-synchronous status, so we don't
- * have to worry about atomic accesses.
- */
-#define TS_USEDFPU 0x0001 /* FPU was used by this task this quantum (SMP) */
-
#define THREAD_SIZE KERNEL_STACK_SIZE
#define THREAD_SIZE_ORDER (KERNEL_STACK_SHIFT - PAGE_SHIFT)
diff --git a/arch/xtensa/include/asm/uaccess.h b/arch/xtensa/include/asm/uaccess.h
index 4b2480304bc3..6792928ba84a 100644
--- a/arch/xtensa/include/asm/uaccess.h
+++ b/arch/xtensa/include/asm/uaccess.h
@@ -32,7 +32,6 @@
#define KERNEL_DS ((mm_segment_t) { 0 })
#define USER_DS ((mm_segment_t) { 1 })
-#define get_ds() (KERNEL_DS)
#define get_fs() (current->thread.current_ds)
#define set_fs(val) (current->thread.current_ds = (val))
diff --git a/arch/xtensa/include/asm/unistd.h b/arch/xtensa/include/asm/unistd.h
index 0d34629dafc5..30af4dc3ce7b 100644
--- a/arch/xtensa/include/asm/unistd.h
+++ b/arch/xtensa/include/asm/unistd.h
@@ -7,21 +7,9 @@
#define __ARCH_WANT_NEW_STAT
#define __ARCH_WANT_STAT64
-#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_SYS_UTIME32
#define __ARCH_WANT_SYS_GETPGRP
-/*
- * Ignore legacy system calls in the checksyscalls.sh script
- */
-
-#define __IGNORE_fork /* use clone */
-#define __IGNORE_time
-#define __IGNORE_alarm /* use setitimer */
-#define __IGNORE_pause
-#define __IGNORE_mmap /* use mmap2 */
-#define __IGNORE_vfork /* use clone */
-#define __IGNORE_fadvise64 /* use fadvise64_64 */
-
#define NR_syscalls __NR_syscalls
#endif /* _XTENSA_UNISTD_H */
diff --git a/arch/xtensa/include/uapi/asm/Kbuild b/arch/xtensa/include/uapi/asm/Kbuild
index 960bf1e4be53..6b43e5049ff7 100644
--- a/arch/xtensa/include/uapi/asm/Kbuild
+++ b/arch/xtensa/include/uapi/asm/Kbuild
@@ -2,3 +2,4 @@ include include/uapi/asm-generic/Kbuild.asm
generated-y += unistd_32.h
generic-y += kvm_para.h
+generic-y += socket.h
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 58f29a9d895d..be726062412b 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -34,9 +34,7 @@
/*
* Flags for mmap
*/
-#define MAP_SHARED 0x001 /* Share changes */
-#define MAP_PRIVATE 0x002 /* Changes are private */
-#define MAP_SHARED_VALIDATE 0x003 /* share + validate extension flags */
+/* 0x01 - 0x03 are defined in linux/mman.h */
#define MAP_TYPE 0x00f /* Mask for type of mapping */
#define MAP_FIXED 0x010 /* Interpret addr exactly */
diff --git a/arch/xtensa/include/uapi/asm/socket.h b/arch/xtensa/include/uapi/asm/socket.h
deleted file mode 100644
index 1de07a7f7680..000000000000
--- a/arch/xtensa/include/uapi/asm/socket.h
+++ /dev/null
@@ -1,122 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-/*
- * include/asm-xtensa/socket.h
- *
- * Copied from i386.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#ifndef _XTENSA_SOCKET_H
-#define _XTENSA_SOCKET_H
-
-#include <asm/sockios.h>
-
-/* For setsockoptions(2) */
-#define SOL_SOCKET 1
-
-#define SO_DEBUG 1
-#define SO_REUSEADDR 2
-#define SO_TYPE 3
-#define SO_ERROR 4
-#define SO_DONTROUTE 5
-#define SO_BROADCAST 6
-#define SO_SNDBUF 7
-#define SO_RCVBUF 8
-#define SO_SNDBUFFORCE 32
-#define SO_RCVBUFFORCE 33
-#define SO_KEEPALIVE 9
-#define SO_OOBINLINE 10
-#define SO_NO_CHECK 11
-#define SO_PRIORITY 12
-#define SO_LINGER 13
-#define SO_BSDCOMPAT 14
-#define SO_REUSEPORT 15
-#define SO_PASSCRED 16
-#define SO_PEERCRED 17
-#define SO_RCVLOWAT 18
-#define SO_SNDLOWAT 19
-#define SO_RCVTIMEO 20
-#define SO_SNDTIMEO 21
-
-/* Security levels - as per NRL IPv6 - don't actually do anything */
-
-#define SO_SECURITY_AUTHENTICATION 22
-#define SO_SECURITY_ENCRYPTION_TRANSPORT 23
-#define SO_SECURITY_ENCRYPTION_NETWORK 24
-
-#define SO_BINDTODEVICE 25
-
-/* Socket filtering */
-
-#define SO_ATTACH_FILTER 26
-#define SO_DETACH_FILTER 27
-#define SO_GET_FILTER SO_ATTACH_FILTER
-
-#define SO_PEERNAME 28
-#define SO_TIMESTAMP 29
-#define SCM_TIMESTAMP SO_TIMESTAMP
-
-#define SO_ACCEPTCONN 30
-#define SO_PEERSEC 31
-#define SO_PASSSEC 34
-#define SO_TIMESTAMPNS 35
-#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
-
-#define SO_MARK 36
-
-#define SO_TIMESTAMPING 37
-#define SCM_TIMESTAMPING SO_TIMESTAMPING
-
-#define SO_PROTOCOL 38
-#define SO_DOMAIN 39
-
-#define SO_RXQ_OVFL 40
-
-#define SO_WIFI_STATUS 41
-#define SCM_WIFI_STATUS SO_WIFI_STATUS
-#define SO_PEEK_OFF 42
-
-/* Instruct lower device to use last 4-bytes of skb data as FCS */
-#define SO_NOFCS 43
-
-#define SO_LOCK_FILTER 44
-
-#define SO_SELECT_ERR_QUEUE 45
-
-#define SO_BUSY_POLL 46
-
-#define SO_MAX_PACING_RATE 47
-
-#define SO_BPF_EXTENSIONS 48
-
-#define SO_INCOMING_CPU 49
-
-#define SO_ATTACH_BPF 50
-#define SO_DETACH_BPF SO_DETACH_FILTER
-
-#define SO_ATTACH_REUSEPORT_CBPF 51
-#define SO_ATTACH_REUSEPORT_EBPF 52
-
-#define SO_CNX_ADVICE 53
-
-#define SCM_TIMESTAMPING_OPT_STATS 54
-
-#define SO_MEMINFO 55
-
-#define SO_INCOMING_NAPI_ID 56
-
-#define SO_COOKIE 57
-
-#define SCM_TIMESTAMPING_PKTINFO 58
-
-#define SO_PEERGROUPS 59
-
-#define SO_ZEROCOPY 60
-
-#define SO_TXTIME 61
-#define SCM_TXTIME SO_TXTIME
-
-#endif /* _XTENSA_SOCKET_H */
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-16 10:24:21 +0300