Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha
Pull alpha architecture fixes from Matt Turner:
"This contains mostly clean ups and fixes but also an implementation of
atomic64_dec_if_positive() and a pair of new syscalls"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha:
alpha: Use handle_percpu_irq for the timer interrupt
alpha: Force the user-visible HZ to a constant 1024.
alpha: Don't if-out dp264_device_interrupt.
alpha: Use __builtin_alpha_rpcc
alpha: Fix type compatibility warning for marvel_map_irq
alpha: Generate dwarf2 unwind info for various kernel entry points.
alpha: Implement atomic64_dec_if_positive
alpha: Improve atomic_add_unless
alpha: Modernize lib/mpi/longlong.h
alpha: Add kcmp and finit_module syscalls
alpha: locks: remove unused arch_*_relax operations
alpha: kernel: typo issue, using '1' instead of '11'
alpha: kernel: using memcpy() instead of strcpy()
alpha: Convert print_symbol to %pSR
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 837a1f2..082d9b4 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -15,6 +15,7 @@
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARCH_WANT_IPC_PARSE_VERSION
select ARCH_HAVE_NMI_SAFE_CMPXCHG
+ select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
select GENERIC_SMP_IDLE_THREAD
select GENERIC_CMOS_UPDATE
select GENERIC_STRNCPY_FROM_USER
diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h
index c2cbe4f..78b03ef 100644
--- a/arch/alpha/include/asm/atomic.h
+++ b/arch/alpha/include/asm/atomic.h
@@ -186,17 +186,24 @@
*/
static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
{
- int c, old;
- c = atomic_read(v);
- for (;;) {
- if (unlikely(c == (u)))
- break;
- old = atomic_cmpxchg((v), c, c + (a));
- if (likely(old == c))
- break;
- c = old;
- }
- return c;
+ int c, new, old;
+ smp_mb();
+ __asm__ __volatile__(
+ "1: ldl_l %[old],%[mem]\n"
+ " cmpeq %[old],%[u],%[c]\n"
+ " addl %[old],%[a],%[new]\n"
+ " bne %[c],2f\n"
+ " stl_c %[new],%[mem]\n"
+ " beq %[new],3f\n"
+ "2:\n"
+ ".subsection 2\n"
+ "3: br 1b\n"
+ ".previous"
+ : [old] "=&r"(old), [new] "=&r"(new), [c] "=&r"(c)
+ : [mem] "m"(*v), [a] "rI"(a), [u] "rI"((long)u)
+ : "memory");
+ smp_mb();
+ return old;
}
@@ -207,21 +214,56 @@
* @u: ...unless v is equal to u.
*
* Atomically adds @a to @v, so long as it was not @u.
- * Returns the old value of @v.
+ * Returns true iff @v was not @u.
*/
static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
{
- long c, old;
- c = atomic64_read(v);
- for (;;) {
- if (unlikely(c == (u)))
- break;
- old = atomic64_cmpxchg((v), c, c + (a));
- if (likely(old == c))
- break;
- c = old;
- }
- return c != (u);
+ long c, tmp;
+ smp_mb();
+ __asm__ __volatile__(
+ "1: ldq_l %[tmp],%[mem]\n"
+ " cmpeq %[tmp],%[u],%[c]\n"
+ " addq %[tmp],%[a],%[tmp]\n"
+ " bne %[c],2f\n"
+ " stq_c %[tmp],%[mem]\n"
+ " beq %[tmp],3f\n"
+ "2:\n"
+ ".subsection 2\n"
+ "3: br 1b\n"
+ ".previous"
+ : [tmp] "=&r"(tmp), [c] "=&r"(c)
+ : [mem] "m"(*v), [a] "rI"(a), [u] "rI"(u)
+ : "memory");
+ smp_mb();
+ return !c;
+}
+
+/*
+ * atomic64_dec_if_positive - decrement by 1 if old value positive
+ * @v: pointer of type atomic_t
+ *
+ * The function returns the old value of *v minus 1, even if
+ * the atomic variable, v, was not decremented.
+ */
+static inline long atomic64_dec_if_positive(atomic64_t *v)
+{
+ long old, tmp;
+ smp_mb();
+ __asm__ __volatile__(
+ "1: ldq_l %[old],%[mem]\n"
+ " subq %[old],1,%[tmp]\n"
+ " ble %[old],2f\n"
+ " stq_c %[tmp],%[mem]\n"
+ " beq %[tmp],3f\n"
+ "2:\n"
+ ".subsection 2\n"
+ "3: br 1b\n"
+ ".previous"
+ : [old] "=&r"(old), [tmp] "=&r"(tmp)
+ : [mem] "m"(*v)
+ : "memory");
+ smp_mb();
+ return old - 1;
}
#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
diff --git a/arch/alpha/include/asm/param.h b/arch/alpha/include/asm/param.h
index bf46af5..a5b68b2 100644
--- a/arch/alpha/include/asm/param.h
+++ b/arch/alpha/include/asm/param.h
@@ -3,7 +3,9 @@
#include <uapi/asm/param.h>
-#define HZ CONFIG_HZ
-#define USER_HZ HZ
-# define CLOCKS_PER_SEC HZ /* frequency at which times() counts */
+# undef HZ
+# define HZ CONFIG_HZ
+# define USER_HZ 1024
+# define CLOCKS_PER_SEC USER_HZ /* frequency at which times() counts */
+
#endif /* _ASM_ALPHA_PARAM_H */
diff --git a/arch/alpha/include/asm/spinlock.h b/arch/alpha/include/asm/spinlock.h
index 3bba21e..37b570d 100644
--- a/arch/alpha/include/asm/spinlock.h
+++ b/arch/alpha/include/asm/spinlock.h
@@ -168,8 +168,4 @@
#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-#define arch_spin_relax(lock) cpu_relax()
-#define arch_read_relax(lock) cpu_relax()
-#define arch_write_relax(lock) cpu_relax()
-
#endif /* _ALPHA_SPINLOCK_H */
diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
index 43baee1..f2c9440 100644
--- a/arch/alpha/include/asm/unistd.h
+++ b/arch/alpha/include/asm/unistd.h
@@ -3,8 +3,7 @@
#include <uapi/asm/unistd.h>
-
-#define NR_SYSCALLS 506
+#define NR_SYSCALLS 508
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_STAT64
diff --git a/arch/alpha/include/uapi/asm/param.h b/arch/alpha/include/uapi/asm/param.h
index 29daed8..dbcd983 100644
--- a/arch/alpha/include/uapi/asm/param.h
+++ b/arch/alpha/include/uapi/asm/param.h
@@ -1,13 +1,7 @@
#ifndef _UAPI_ASM_ALPHA_PARAM_H
#define _UAPI_ASM_ALPHA_PARAM_H
-/* ??? Gross. I don't want to parameterize this, and supposedly the
- hardware ignores reprogramming. We also need userland buy-in to the
- change in HZ, since this is visible in the wait4 resources etc. */
-
-#ifndef __KERNEL__
#define HZ 1024
-#endif
#define EXEC_PAGESIZE 8192
@@ -17,5 +11,4 @@
#define MAXHOSTNAMELEN 64 /* max length of hostname */
-
#endif /* _UAPI_ASM_ALPHA_PARAM_H */
diff --git a/arch/alpha/include/uapi/asm/unistd.h b/arch/alpha/include/uapi/asm/unistd.h
index 801d28b..53ae7bb 100644
--- a/arch/alpha/include/uapi/asm/unistd.h
+++ b/arch/alpha/include/uapi/asm/unistd.h
@@ -467,5 +467,7 @@
#define __NR_sendmmsg 503
#define __NR_process_vm_readv 504
#define __NR_process_vm_writev 505
+#define __NR_kcmp 506
+#define __NR_finit_module 507
#endif /* _UAPI_ALPHA_UNISTD_H */
diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S
index f62a994..a969b95 100644
--- a/arch/alpha/kernel/entry.S
+++ b/arch/alpha/kernel/entry.S
@@ -12,11 +12,32 @@
.text
.set noat
+ .cfi_sections .debug_frame
/* Stack offsets. */
#define SP_OFF 184
#define SWITCH_STACK_SIZE 320
+.macro CFI_START_OSF_FRAME func
+ .align 4
+ .globl \func
+ .type \func,@function
+\func:
+ .cfi_startproc simple
+ .cfi_return_column 64
+ .cfi_def_cfa $sp, 48
+ .cfi_rel_offset 64, 8
+ .cfi_rel_offset $gp, 16
+ .cfi_rel_offset $16, 24
+ .cfi_rel_offset $17, 32
+ .cfi_rel_offset $18, 40
+.endm
+
+.macro CFI_END_OSF_FRAME func
+ .cfi_endproc
+ .size \func, . - \func
+.endm
+
/*
* This defines the normal kernel pt-regs layout.
*
@@ -27,100 +48,158 @@
* the palcode-provided values are available to the signal handler.
*/
-#define SAVE_ALL \
- subq $sp, SP_OFF, $sp; \
- stq $0, 0($sp); \
- stq $1, 8($sp); \
- stq $2, 16($sp); \
- stq $3, 24($sp); \
- stq $4, 32($sp); \
- stq $28, 144($sp); \
- lda $2, alpha_mv; \
- stq $5, 40($sp); \
- stq $6, 48($sp); \
- stq $7, 56($sp); \
- stq $8, 64($sp); \
- stq $19, 72($sp); \
- stq $20, 80($sp); \
- stq $21, 88($sp); \
- ldq $2, HAE_CACHE($2); \
- stq $22, 96($sp); \
- stq $23, 104($sp); \
- stq $24, 112($sp); \
- stq $25, 120($sp); \
- stq $26, 128($sp); \
- stq $27, 136($sp); \
- stq $2, 152($sp); \
- stq $16, 160($sp); \
- stq $17, 168($sp); \
+.macro SAVE_ALL
+ subq $sp, SP_OFF, $sp
+ .cfi_adjust_cfa_offset SP_OFF
+ stq $0, 0($sp)
+ stq $1, 8($sp)
+ stq $2, 16($sp)
+ stq $3, 24($sp)
+ stq $4, 32($sp)
+ stq $28, 144($sp)
+ .cfi_rel_offset $0, 0
+ .cfi_rel_offset $1, 8
+ .cfi_rel_offset $2, 16
+ .cfi_rel_offset $3, 24
+ .cfi_rel_offset $4, 32
+ .cfi_rel_offset $28, 144
+ lda $2, alpha_mv
+ stq $5, 40($sp)
+ stq $6, 48($sp)
+ stq $7, 56($sp)
+ stq $8, 64($sp)
+ stq $19, 72($sp)
+ stq $20, 80($sp)
+ stq $21, 88($sp)
+ ldq $2, HAE_CACHE($2)
+ stq $22, 96($sp)
+ stq $23, 104($sp)
+ stq $24, 112($sp)
+ stq $25, 120($sp)
+ stq $26, 128($sp)
+ stq $27, 136($sp)
+ stq $2, 152($sp)
+ stq $16, 160($sp)
+ stq $17, 168($sp)
stq $18, 176($sp)
+ .cfi_rel_offset $5, 40
+ .cfi_rel_offset $6, 48
+ .cfi_rel_offset $7, 56
+ .cfi_rel_offset $8, 64
+ .cfi_rel_offset $19, 72
+ .cfi_rel_offset $20, 80
+ .cfi_rel_offset $21, 88
+ .cfi_rel_offset $22, 96
+ .cfi_rel_offset $23, 104
+ .cfi_rel_offset $24, 112
+ .cfi_rel_offset $25, 120
+ .cfi_rel_offset $26, 128
+ .cfi_rel_offset $27, 136
+.endm
-#define RESTORE_ALL \
- lda $19, alpha_mv; \
- ldq $0, 0($sp); \
- ldq $1, 8($sp); \
- ldq $2, 16($sp); \
- ldq $3, 24($sp); \
- ldq $21, 152($sp); \
- ldq $20, HAE_CACHE($19); \
- ldq $4, 32($sp); \
- ldq $5, 40($sp); \
- ldq $6, 48($sp); \
- ldq $7, 56($sp); \
- subq $20, $21, $20; \
- ldq $8, 64($sp); \
- beq $20, 99f; \
- ldq $20, HAE_REG($19); \
- stq $21, HAE_CACHE($19); \
- stq $21, 0($20); \
-99:; \
- ldq $19, 72($sp); \
- ldq $20, 80($sp); \
- ldq $21, 88($sp); \
- ldq $22, 96($sp); \
- ldq $23, 104($sp); \
- ldq $24, 112($sp); \
- ldq $25, 120($sp); \
- ldq $26, 128($sp); \
- ldq $27, 136($sp); \
- ldq $28, 144($sp); \
+.macro RESTORE_ALL
+ lda $19, alpha_mv
+ ldq $0, 0($sp)
+ ldq $1, 8($sp)
+ ldq $2, 16($sp)
+ ldq $3, 24($sp)
+ ldq $21, 152($sp)
+ ldq $20, HAE_CACHE($19)
+ ldq $4, 32($sp)
+ ldq $5, 40($sp)
+ ldq $6, 48($sp)
+ ldq $7, 56($sp)
+ subq $20, $21, $20
+ ldq $8, 64($sp)
+ beq $20, 99f
+ ldq $20, HAE_REG($19)
+ stq $21, HAE_CACHE($19)
+ stq $21, 0($20)
+99: ldq $19, 72($sp)
+ ldq $20, 80($sp)
+ ldq $21, 88($sp)
+ ldq $22, 96($sp)
+ ldq $23, 104($sp)
+ ldq $24, 112($sp)
+ ldq $25, 120($sp)
+ ldq $26, 128($sp)
+ ldq $27, 136($sp)
+ ldq $28, 144($sp)
addq $sp, SP_OFF, $sp
+ .cfi_restore $0
+ .cfi_restore $1
+ .cfi_restore $2
+ .cfi_restore $3
+ .cfi_restore $4
+ .cfi_restore $5
+ .cfi_restore $6
+ .cfi_restore $7
+ .cfi_restore $8
+ .cfi_restore $19
+ .cfi_restore $20
+ .cfi_restore $21
+ .cfi_restore $22
+ .cfi_restore $23
+ .cfi_restore $24
+ .cfi_restore $25
+ .cfi_restore $26
+ .cfi_restore $27
+ .cfi_restore $28
+ .cfi_adjust_cfa_offset -SP_OFF
+.endm
+
+.macro DO_SWITCH_STACK
+ bsr $1, do_switch_stack
+ .cfi_adjust_cfa_offset SWITCH_STACK_SIZE
+ .cfi_rel_offset $9, 0
+ .cfi_rel_offset $10, 8
+ .cfi_rel_offset $11, 16
+ .cfi_rel_offset $12, 24
+ .cfi_rel_offset $13, 32
+ .cfi_rel_offset $14, 40
+ .cfi_rel_offset $15, 48
+ /* We don't really care about the FP registers for debugging. */
+.endm
+
+.macro UNDO_SWITCH_STACK
+ bsr $1, undo_switch_stack
+ .cfi_restore $9
+ .cfi_restore $10
+ .cfi_restore $11
+ .cfi_restore $12
+ .cfi_restore $13
+ .cfi_restore $14
+ .cfi_restore $15
+ .cfi_adjust_cfa_offset -SWITCH_STACK_SIZE
+.endm
/*
* Non-syscall kernel entry points.
*/
- .align 4
- .globl entInt
- .ent entInt
-entInt:
+CFI_START_OSF_FRAME entInt
SAVE_ALL
lda $8, 0x3fff
lda $26, ret_from_sys_call
bic $sp, $8, $8
mov $sp, $19
jsr $31, do_entInt
-.end entInt
+CFI_END_OSF_FRAME entInt
- .align 4
- .globl entArith
- .ent entArith
-entArith:
+CFI_START_OSF_FRAME entArith
SAVE_ALL
lda $8, 0x3fff
lda $26, ret_from_sys_call
bic $sp, $8, $8
mov $sp, $18
jsr $31, do_entArith
-.end entArith
+CFI_END_OSF_FRAME entArith
- .align 4
- .globl entMM
- .ent entMM
-entMM:
+CFI_START_OSF_FRAME entMM
SAVE_ALL
/* save $9 - $15 so the inline exception code can manipulate them. */
subq $sp, 56, $sp
+ .cfi_adjust_cfa_offset 56
stq $9, 0($sp)
stq $10, 8($sp)
stq $11, 16($sp)
@@ -128,6 +207,13 @@
stq $13, 32($sp)
stq $14, 40($sp)
stq $15, 48($sp)
+ .cfi_rel_offset $9, 0
+ .cfi_rel_offset $10, 8
+ .cfi_rel_offset $11, 16
+ .cfi_rel_offset $12, 24
+ .cfi_rel_offset $13, 32
+ .cfi_rel_offset $14, 40
+ .cfi_rel_offset $15, 48
addq $sp, 56, $19
/* handle the fault */
lda $8, 0x3fff
@@ -142,28 +228,33 @@
ldq $14, 40($sp)
ldq $15, 48($sp)
addq $sp, 56, $sp
+ .cfi_restore $9
+ .cfi_restore $10
+ .cfi_restore $11
+ .cfi_restore $12
+ .cfi_restore $13
+ .cfi_restore $14
+ .cfi_restore $15
+ .cfi_adjust_cfa_offset -56
/* finish up the syscall as normal. */
br ret_from_sys_call
-.end entMM
+CFI_END_OSF_FRAME entMM
- .align 4
- .globl entIF
- .ent entIF
-entIF:
+CFI_START_OSF_FRAME entIF
SAVE_ALL
lda $8, 0x3fff
lda $26, ret_from_sys_call
bic $sp, $8, $8
mov $sp, $17
jsr $31, do_entIF
-.end entIF
+CFI_END_OSF_FRAME entIF
- .align 4
- .globl entUna
- .ent entUna
-entUna:
+CFI_START_OSF_FRAME entUna
lda $sp, -256($sp)
+ .cfi_adjust_cfa_offset 256
stq $0, 0($sp)
+ .cfi_rel_offset $0, 0
+ .cfi_remember_state
ldq $0, 256($sp) /* get PS */
stq $1, 8($sp)
stq $2, 16($sp)
@@ -195,6 +286,32 @@
stq $28, 224($sp)
mov $sp, $19
stq $gp, 232($sp)
+ .cfi_rel_offset $1, 1*8
+ .cfi_rel_offset $2, 2*8
+ .cfi_rel_offset $3, 3*8
+ .cfi_rel_offset $4, 4*8
+ .cfi_rel_offset $5, 5*8
+ .cfi_rel_offset $6, 6*8
+ .cfi_rel_offset $7, 7*8
+ .cfi_rel_offset $8, 8*8
+ .cfi_rel_offset $9, 9*8
+ .cfi_rel_offset $10, 10*8
+ .cfi_rel_offset $11, 11*8
+ .cfi_rel_offset $12, 12*8
+ .cfi_rel_offset $13, 13*8
+ .cfi_rel_offset $14, 14*8
+ .cfi_rel_offset $15, 15*8
+ .cfi_rel_offset $19, 19*8
+ .cfi_rel_offset $20, 20*8
+ .cfi_rel_offset $21, 21*8
+ .cfi_rel_offset $22, 22*8
+ .cfi_rel_offset $23, 23*8
+ .cfi_rel_offset $24, 24*8
+ .cfi_rel_offset $25, 25*8
+ .cfi_rel_offset $26, 26*8
+ .cfi_rel_offset $27, 27*8
+ .cfi_rel_offset $28, 28*8
+ .cfi_rel_offset $29, 29*8
lda $8, 0x3fff
stq $31, 248($sp)
bic $sp, $8, $8
@@ -228,16 +345,45 @@
ldq $28, 224($sp)
ldq $gp, 232($sp)
lda $sp, 256($sp)
+ .cfi_restore $1
+ .cfi_restore $2
+ .cfi_restore $3
+ .cfi_restore $4
+ .cfi_restore $5
+ .cfi_restore $6
+ .cfi_restore $7
+ .cfi_restore $8
+ .cfi_restore $9
+ .cfi_restore $10
+ .cfi_restore $11
+ .cfi_restore $12
+ .cfi_restore $13
+ .cfi_restore $14
+ .cfi_restore $15
+ .cfi_restore $19
+ .cfi_restore $20
+ .cfi_restore $21
+ .cfi_restore $22
+ .cfi_restore $23
+ .cfi_restore $24
+ .cfi_restore $25
+ .cfi_restore $26
+ .cfi_restore $27
+ .cfi_restore $28
+ .cfi_restore $29
+ .cfi_adjust_cfa_offset -256
call_pal PAL_rti
-.end entUna
.align 4
- .ent entUnaUser
entUnaUser:
+ .cfi_restore_state
ldq $0, 0($sp) /* restore original $0 */
lda $sp, 256($sp) /* pop entUna's stack frame */
+ .cfi_restore $0
+ .cfi_adjust_cfa_offset -256
SAVE_ALL /* setup normal kernel stack */
lda $sp, -56($sp)
+ .cfi_adjust_cfa_offset 56
stq $9, 0($sp)
stq $10, 8($sp)
stq $11, 16($sp)
@@ -245,6 +391,13 @@
stq $13, 32($sp)
stq $14, 40($sp)
stq $15, 48($sp)
+ .cfi_rel_offset $9, 0
+ .cfi_rel_offset $10, 8
+ .cfi_rel_offset $11, 16
+ .cfi_rel_offset $12, 24
+ .cfi_rel_offset $13, 32
+ .cfi_rel_offset $14, 40
+ .cfi_rel_offset $15, 48
lda $8, 0x3fff
addq $sp, 56, $19
bic $sp, $8, $8
@@ -257,20 +410,25 @@
ldq $14, 40($sp)
ldq $15, 48($sp)
lda $sp, 56($sp)
+ .cfi_restore $9
+ .cfi_restore $10
+ .cfi_restore $11
+ .cfi_restore $12
+ .cfi_restore $13
+ .cfi_restore $14
+ .cfi_restore $15
+ .cfi_adjust_cfa_offset -56
br ret_from_sys_call
-.end entUnaUser
+CFI_END_OSF_FRAME entUna
- .align 4
- .globl entDbg
- .ent entDbg
-entDbg:
+CFI_START_OSF_FRAME entDbg
SAVE_ALL
lda $8, 0x3fff
lda $26, ret_from_sys_call
bic $sp, $8, $8
mov $sp, $16
jsr $31, do_entDbg
-.end entDbg
+CFI_END_OSF_FRAME entDbg
/*
* The system call entry point is special. Most importantly, it looks
@@ -285,8 +443,12 @@
.align 4
.globl entSys
- .globl ret_from_sys_call
- .ent entSys
+ .type entSys, @function
+ .cfi_startproc simple
+ .cfi_return_column 64
+ .cfi_def_cfa $sp, 48
+ .cfi_rel_offset 64, 8
+ .cfi_rel_offset $gp, 16
entSys:
SAVE_ALL
lda $8, 0x3fff
@@ -300,6 +462,9 @@
stq $17, SP_OFF+32($sp)
s8addq $0, $5, $5
stq $18, SP_OFF+40($sp)
+ .cfi_rel_offset $16, SP_OFF+24
+ .cfi_rel_offset $17, SP_OFF+32
+ .cfi_rel_offset $18, SP_OFF+40
blbs $3, strace
beq $4, 1f
ldq $27, 0($5)
@@ -310,6 +475,7 @@
stq $31, 72($sp) /* a3=0 => no error */
.align 4
+ .globl ret_from_sys_call
ret_from_sys_call:
cmovne $26, 0, $18 /* $18 = 0 => non-restartable */
ldq $0, SP_OFF($sp)
@@ -324,10 +490,12 @@
and $17, _TIF_WORK_MASK, $2
bne $2, work_pending
restore_all:
+ .cfi_remember_state
RESTORE_ALL
call_pal PAL_rti
ret_to_kernel:
+ .cfi_restore_state
lda $16, 7
call_pal PAL_swpipl
br restore_all
@@ -356,7 +524,6 @@
stq $0, 0($sp)
stq $31, 72($sp) /* a3=0 => no error */
br ret_from_sys_call
-.end entSys
/*
* Do all cleanup when returning from all interrupts and system calls.
@@ -370,7 +537,7 @@
*/
.align 4
- .ent work_pending
+ .type work_pending, @function
work_pending:
and $17, _TIF_NOTIFY_RESUME | _TIF_SIGPENDING, $2
bne $2, $work_notifysig
@@ -387,23 +554,22 @@
$work_notifysig:
mov $sp, $16
- bsr $1, do_switch_stack
+ DO_SWITCH_STACK
jsr $26, do_work_pending
- bsr $1, undo_switch_stack
+ UNDO_SWITCH_STACK
br restore_all
-.end work_pending
/*
* PTRACE syscall handler
*/
.align 4
- .ent strace
+ .type strace, @function
strace:
/* set up signal stack, call syscall_trace */
- bsr $1, do_switch_stack
+ DO_SWITCH_STACK
jsr $26, syscall_trace_enter /* returns the syscall number */
- bsr $1, undo_switch_stack
+ UNDO_SWITCH_STACK
/* get the arguments back.. */
ldq $16, SP_OFF+24($sp)
@@ -431,9 +597,9 @@
$strace_success:
stq $0, 0($sp) /* save return value */
- bsr $1, do_switch_stack
+ DO_SWITCH_STACK
jsr $26, syscall_trace_leave
- bsr $1, undo_switch_stack
+ UNDO_SWITCH_STACK
br $31, ret_from_sys_call
.align 3
@@ -447,26 +613,31 @@
stq $0, 0($sp)
stq $1, 72($sp) /* a3 for return */
- bsr $1, do_switch_stack
+ DO_SWITCH_STACK
mov $18, $9 /* save old syscall number */
mov $19, $10 /* save old a3 */
jsr $26, syscall_trace_leave
mov $9, $18
mov $10, $19
- bsr $1, undo_switch_stack
+ UNDO_SWITCH_STACK
mov $31, $26 /* tell "ret_from_sys_call" we can restart */
br ret_from_sys_call
-.end strace
+CFI_END_OSF_FRAME entSys
/*
* Save and restore the switch stack -- aka the balance of the user context.
*/
.align 4
- .ent do_switch_stack
+ .type do_switch_stack, @function
+ .cfi_startproc simple
+ .cfi_return_column 64
+ .cfi_def_cfa $sp, 0
+ .cfi_register 64, $1
do_switch_stack:
lda $sp, -SWITCH_STACK_SIZE($sp)
+ .cfi_adjust_cfa_offset SWITCH_STACK_SIZE
stq $9, 0($sp)
stq $10, 8($sp)
stq $11, 16($sp)
@@ -510,10 +681,14 @@
stt $f0, 312($sp) # save fpcr in slot of $f31
ldt $f0, 64($sp) # dont let "do_switch_stack" change fp state.
ret $31, ($1), 1
-.end do_switch_stack
+ .cfi_endproc
+ .size do_switch_stack, .-do_switch_stack
.align 4
- .ent undo_switch_stack
+ .type undo_switch_stack, @function
+ .cfi_startproc simple
+ .cfi_def_cfa $sp, 0
+ .cfi_register 64, $1
undo_switch_stack:
ldq $9, 0($sp)
ldq $10, 8($sp)
@@ -558,7 +733,8 @@
ldt $f30, 304($sp)
lda $sp, SWITCH_STACK_SIZE($sp)
ret $31, ($1), 1
-.end undo_switch_stack
+ .cfi_endproc
+ .size undo_switch_stack, .-undo_switch_stack
/*
* The meat of the context switch code.
@@ -566,17 +742,18 @@
.align 4
.globl alpha_switch_to
- .ent alpha_switch_to
+ .type alpha_switch_to, @function
+ .cfi_startproc
alpha_switch_to:
- .prologue 0
- bsr $1, do_switch_stack
+ DO_SWITCH_STACK
call_pal PAL_swpctx
lda $8, 0x3fff
- bsr $1, undo_switch_stack
+ UNDO_SWITCH_STACK
bic $sp, $8, $8
mov $17, $0
ret
-.end alpha_switch_to
+ .cfi_endproc
+ .size alpha_switch_to, .-alpha_switch_to
/*
* New processes begin life here.
diff --git a/arch/alpha/kernel/irq_alpha.c b/arch/alpha/kernel/irq_alpha.c
index f433fc1..28e4429 100644
--- a/arch/alpha/kernel/irq_alpha.c
+++ b/arch/alpha/kernel/irq_alpha.c
@@ -236,7 +236,7 @@
init_rtc_irq(void)
{
irq_set_chip_and_handler_name(RTC_IRQ, &dummy_irq_chip,
- handle_simple_irq, "RTC");
+ handle_percpu_irq, "RTC");
setup_irq(RTC_IRQ, &timer_irqaction);
}
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 53b18a6..9dbbcb3 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -264,9 +264,10 @@
if (cnt <= 0 || cnt >= 80)
strcpy(buf, "<<< BOGUS MSG >>>");
else {
- cp1 = (char *) &cpu->ipc_buffer[11];
+ cp1 = (char *) &cpu->ipc_buffer[1];
cp2 = buf;
- strcpy(cp2, cp1);
+ memcpy(cp2, cp1, cnt);
+ cp2[cnt] = '\0';
while ((cp2 = strchr(cp2, '\r')) != 0) {
*cp2 = ' ';
diff --git a/arch/alpha/kernel/sys_dp264.c b/arch/alpha/kernel/sys_dp264.c
index 5bf401f..6c35159 100644
--- a/arch/alpha/kernel/sys_dp264.c
+++ b/arch/alpha/kernel/sys_dp264.c
@@ -190,9 +190,6 @@
static void
dp264_device_interrupt(unsigned long vector)
{
-#if 1
- printk("dp264_device_interrupt: NOT IMPLEMENTED YET!!\n");
-#else
unsigned long pld;
unsigned int i;
@@ -210,12 +207,7 @@
isa_device_interrupt(vector);
else
handle_irq(16 + i);
-#if 0
- TSUNAMI_cchip->dir0.csr = 1UL << i; mb();
- tmp = TSUNAMI_cchip->dir0.csr;
-#endif
}
-#endif
}
static void
diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c
index 407accc..c92e389 100644
--- a/arch/alpha/kernel/sys_marvel.c
+++ b/arch/alpha/kernel/sys_marvel.c
@@ -317,8 +317,9 @@
}
static int
-marvel_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+marvel_map_irq(const struct pci_dev *cdev, u8 slot, u8 pin)
{
+ struct pci_dev *dev = (struct pci_dev *)cdev;
struct pci_controller *hose = dev->sysdata;
struct io7_port *io7_port = hose->sysdata;
struct io7 *io7 = io7_port->io7;
diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S
index 4284ec7..dca9b3f 100644
--- a/arch/alpha/kernel/systbls.S
+++ b/arch/alpha/kernel/systbls.S
@@ -524,6 +524,8 @@
.quad sys_sendmmsg
.quad sys_process_vm_readv
.quad sys_process_vm_writev /* 505 */
+ .quad sys_kcmp
+ .quad sys_finit_module
.size sys_call_table, . - sys_call_table
.type sys_call_table, @object
diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index e336694..ea33950 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -105,9 +105,7 @@
static inline __u32 rpcc(void)
{
- __u32 result;
- asm volatile ("rpcc %0" : "=r"(result));
- return result;
+ return __builtin_alpha_rpcc();
}
int update_persistent_clock(struct timespec now)
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index be1fba3..bd0665c 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -66,8 +66,8 @@
{
printk("pc = [<%016lx>] ra = [<%016lx>] ps = %04lx %s\n",
regs->pc, regs->r26, regs->ps, print_tainted());
- print_symbol("pc is at %s\n", regs->pc);
- print_symbol("ra is at %s\n", regs->r26 );
+ printk("pc is at %pSR\n", (void *)regs->pc);
+ printk("ra is at %pSR\n", (void *)regs->r26);
printk("v0 = %016lx t0 = %016lx t1 = %016lx\n",
regs->r0, regs->r1, regs->r2);
printk("t2 = %016lx t3 = %016lx t4 = %016lx\n",
@@ -132,9 +132,7 @@
continue;
if (tmp >= (unsigned long) &_etext)
continue;
- printk("[<%lx>]", tmp);
- print_symbol(" %s", tmp);
- printk("\n");
+ printk("[<%lx>] %pSR\n", tmp, (void *)tmp);
if (i > 40) {
printk(" ...");
break;
diff --git a/lib/mpi/longlong.h b/lib/mpi/longlong.h
index d411355..aac5114 100644
--- a/lib/mpi/longlong.h
+++ b/lib/mpi/longlong.h
@@ -151,15 +151,12 @@
#endif /* __a29k__ */
#if defined(__alpha) && W_TYPE_SIZE == 64
-#define umul_ppmm(ph, pl, m0, m1) \
-do { \
- UDItype __m0 = (m0), __m1 = (m1); \
- __asm__ ("umulh %r1,%2,%0" \
- : "=r" ((UDItype) ph) \
- : "%rJ" (__m0), \
- "rI" (__m1)); \
- (pl) = __m0 * __m1; \
- } while (0)
+#define umul_ppmm(ph, pl, m0, m1) \
+do { \
+ UDItype __m0 = (m0), __m1 = (m1); \
+ (ph) = __builtin_alpha_umulh(__m0, __m1); \
+ (pl) = __m0 * __m1; \
+} while (0)
#define UMUL_TIME 46
#ifndef LONGLONG_STANDALONE
#define udiv_qrnnd(q, r, n1, n0, d) \
@@ -167,7 +164,7 @@
(q) = __udiv_qrnnd(&__r, (n1), (n0), (d)); \
(r) = __r; \
} while (0)
-extern UDItype __udiv_qrnnd();
+extern UDItype __udiv_qrnnd(UDItype *, UDItype, UDItype, UDItype);
#define UDIV_TIME 220
#endif /* LONGLONG_STANDALONE */
#endif /* __alpha */
