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hexagon: parenthesize registers in asm predicates

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Hexagon requires that register predicates in assembly be parenthesized.

Link: https://github.com/ClangBuiltLinux/linux/issues/754
Link: http://lkml.kernel.org/r/20191209222956.239798-3-ndesaulniers@google.com
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Suggested-by: Sid Manning <sidneym@codeaurora.org>
Acked-by: Brian Cain <bcain@codeaurora.org>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Tuowen Zhao <ztuowen@gmail.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Alexios Zavras <alexios.zavras@intel.com>
Cc: Allison Randal <allison@lohutok.net>
Cc: Will Deacon <will@kernel.org>
Cc: Richard Fontana <rfontana@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Nick Desaulniers 2020-01-04 12:59:59 -08:00 committed by Linus Torvalds
parent 213921f967
commit 780a0cfda9
6 changed files with 23 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
arch/hexagon/include/asm/atomic.h
View File

@ -91,7 +91,7 @@ static inline void atomic_##op(int i, atomic_t *v) \
"1: %0 = memw_locked(%1);\n" \
" %0 = "#op "(%0,%2);\n" \
" memw_locked(%1,P3)=%0;\n" \
" if !P3 jump 1b;\n" \
" if (!P3) jump 1b;\n" \
: "=&r" (output) \
: "r" (&v->counter), "r" (i) \
: "memory", "p3" \
@ -107,7 +107,7 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \
"1: %0 = memw_locked(%1);\n" \
" %0 = "#op "(%0,%2);\n" \
" memw_locked(%1,P3)=%0;\n" \
" if !P3 jump 1b;\n" \
" if (!P3) jump 1b;\n" \
: "=&r" (output) \
: "r" (&v->counter), "r" (i) \
: "memory", "p3" \
@ -124,7 +124,7 @@ static inline int atomic_fetch_##op(int i, atomic_t *v) \
"1: %0 = memw_locked(%2);\n" \
" %1 = "#op "(%0,%3);\n" \
" memw_locked(%2,P3)=%1;\n" \
" if !P3 jump 1b;\n" \
" if (!P3) jump 1b;\n" \
: "=&r" (output), "=&r" (val) \
: "r" (&v->counter), "r" (i) \
: "memory", "p3" \
@ -173,7 +173,7 @@ static inline int atomic_fetch_add_unless(atomic_t *v, int a, int u)
" }"
" memw_locked(%2, p3) = %1;"
" {"
" if !p3 jump 1b;"
" if (!p3) jump 1b;"
" }"
"2:"
: "=&r" (__oldval), "=&r" (tmp)

8
arch/hexagon/include/asm/bitops.h
View File

@ -38,7 +38,7 @@ static inline int test_and_clear_bit(int nr, volatile void *addr)
"1: R12 = memw_locked(R10);\n"
" { P0 = tstbit(R12,R11); R12 = clrbit(R12,R11); }\n"
" memw_locked(R10,P1) = R12;\n"
" {if !P1 jump 1b; %0 = mux(P0,#1,#0);}\n"
" {if (!P1) jump 1b; %0 = mux(P0,#1,#0);}\n"
: "=&r" (oldval)
: "r" (addr), "r" (nr)
: "r10", "r11", "r12", "p0", "p1", "memory"
@ -62,7 +62,7 @@ static inline int test_and_set_bit(int nr, volatile void *addr)
"1: R12 = memw_locked(R10);\n"
" { P0 = tstbit(R12,R11); R12 = setbit(R12,R11); }\n"
" memw_locked(R10,P1) = R12;\n"
" {if !P1 jump 1b; %0 = mux(P0,#1,#0);}\n"
" {if (!P1) jump 1b; %0 = mux(P0,#1,#0);}\n"
: "=&r" (oldval)
: "r" (addr), "r" (nr)
: "r10", "r11", "r12", "p0", "p1", "memory"
@ -88,7 +88,7 @@ static inline int test_and_change_bit(int nr, volatile void *addr)
"1: R12 = memw_locked(R10);\n"
" { P0 = tstbit(R12,R11); R12 = togglebit(R12,R11); }\n"
" memw_locked(R10,P1) = R12;\n"
" {if !P1 jump 1b; %0 = mux(P0,#1,#0);}\n"
" {if (!P1) jump 1b; %0 = mux(P0,#1,#0);}\n"
: "=&r" (oldval)
: "r" (addr), "r" (nr)
: "r10", "r11", "r12", "p0", "p1", "memory"
@ -223,7 +223,7 @@ static inline int ffs(int x)
int r;
asm("{ P0 = cmp.eq(%1,#0); %0 = ct0(%1);}\n"
"{ if P0 %0 = #0; if !P0 %0 = add(%0,#1);}\n"
"{ if (P0) %0 = #0; if (!P0) %0 = add(%0,#1);}\n"
: "=&r" (r)
: "r" (x)
: "p0");

2
arch/hexagon/include/asm/cmpxchg.h
View File

@ -30,7 +30,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
__asm__ __volatile__ (
"1: %0 = memw_locked(%1);\n" /* load into retval */
" memw_locked(%1,P0) = %2;\n" /* store into memory */
" if !P0 jump 1b;\n"
" if (!P0) jump 1b;\n"
: "=&r" (retval)
: "r" (ptr), "r" (x)
: "memory", "p0"

6
arch/hexagon/include/asm/futex.h
View File

@ -16,7 +16,7 @@
/* For example: %1 = %4 */ \
insn \
"2: memw_locked(%3,p2) = %1;\n" \
" if !p2 jump 1b;\n" \
" if (!p2) jump 1b;\n" \
" %1 = #0;\n" \
"3:\n" \
".section .fixup,\"ax\"\n" \
@ -84,10 +84,10 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, u32 oldval,
"1: %1 = memw_locked(%3)\n"
" {\n"
" p2 = cmp.eq(%1,%4)\n"
" if !p2.new jump:NT 3f\n"
" if (!p2.new) jump:NT 3f\n"
" }\n"
"2: memw_locked(%3,p2) = %5\n"
" if !p2 jump 1b\n"
" if (!p2) jump 1b\n"
"3:\n"
".section .fixup,\"ax\"\n"
"4: %0 = #%6\n"

20
arch/hexagon/include/asm/spinlock.h
View File

@ -30,9 +30,9 @@ static inline void arch_read_lock(arch_rwlock_t *lock)
__asm__ __volatile__(
"1: R6 = memw_locked(%0);\n"
" { P3 = cmp.ge(R6,#0); R6 = add(R6,#1);}\n"
" { if !P3 jump 1b; }\n"
" { if (!P3) jump 1b; }\n"
" memw_locked(%0,P3) = R6;\n"
" { if !P3 jump 1b; }\n"
" { if (!P3) jump 1b; }\n"
:
: "r" (&lock->lock)
: "memory", "r6", "p3"
@ -46,7 +46,7 @@ static inline void arch_read_unlock(arch_rwlock_t *lock)
"1: R6 = memw_locked(%0);\n"
" R6 = add(R6,#-1);\n"
" memw_locked(%0,P3) = R6\n"
" if !P3 jump 1b;\n"
" if (!P3) jump 1b;\n"
:
: "r" (&lock->lock)
: "memory", "r6", "p3"
@ -61,7 +61,7 @@ static inline int arch_read_trylock(arch_rwlock_t *lock)
__asm__ __volatile__(
" R6 = memw_locked(%1);\n"
" { %0 = #0; P3 = cmp.ge(R6,#0); R6 = add(R6,#1);}\n"
" { if !P3 jump 1f; }\n"
" { if (!P3) jump 1f; }\n"
" memw_locked(%1,P3) = R6;\n"
" { %0 = P3 }\n"
"1:\n"
@ -78,9 +78,9 @@ static inline void arch_write_lock(arch_rwlock_t *lock)
__asm__ __volatile__(
"1: R6 = memw_locked(%0)\n"
" { P3 = cmp.eq(R6,#0); R6 = #-1;}\n"
" { if !P3 jump 1b; }\n"
" { if (!P3) jump 1b; }\n"
" memw_locked(%0,P3) = R6;\n"
" { if !P3 jump 1b; }\n"
" { if (!P3) jump 1b; }\n"
:
: "r" (&lock->lock)
: "memory", "r6", "p3"
@ -94,7 +94,7 @@ static inline int arch_write_trylock(arch_rwlock_t *lock)
__asm__ __volatile__(
" R6 = memw_locked(%1)\n"
" { %0 = #0; P3 = cmp.eq(R6,#0); R6 = #-1;}\n"
" { if !P3 jump 1f; }\n"
" { if (!P3) jump 1f; }\n"
" memw_locked(%1,P3) = R6;\n"
" %0 = P3;\n"
"1:\n"
@ -117,9 +117,9 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
__asm__ __volatile__(
"1: R6 = memw_locked(%0);\n"
" P3 = cmp.eq(R6,#0);\n"
" { if !P3 jump 1b; R6 = #1; }\n"
" { if (!P3) jump 1b; R6 = #1; }\n"
" memw_locked(%0,P3) = R6;\n"
" { if !P3 jump 1b; }\n"
" { if (!P3) jump 1b; }\n"
:
: "r" (&lock->lock)
: "memory", "r6", "p3"
@ -139,7 +139,7 @@ static inline unsigned int arch_spin_trylock(arch_spinlock_t *lock)
__asm__ __volatile__(
" R6 = memw_locked(%1);\n"
" P3 = cmp.eq(R6,#0);\n"
" { if !P3 jump 1f; R6 = #1; %0 = #0; }\n"
" { if (!P3) jump 1f; R6 = #1; %0 = #0; }\n"
" memw_locked(%1,P3) = R6;\n"
" %0 = P3;\n"
"1:\n"

2
arch/hexagon/kernel/vm_entry.S
View File

@ -369,7 +369,7 @@ ret_from_fork:
R26.L = #LO(do_work_pending);
R0 = #VM_INT_DISABLE;
}
if P0 jump check_work_pending
if (P0) jump check_work_pending
{
R0 = R25;
callr R24