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Metag architecture changes for v4.7

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3 minor fixes:
 - removal of stale comment
 - fix build for Meta1 when perf events are enabled
 - fix inline asm constraint in atomics
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Merge tag 'metag-for-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag

Pull metag architecture updates from James Hogan:
 "Three minor fixes:

   - removal of stale comment
   - fix build for Meta1 when perf events are enabled
   - fix inline asm constraint in atomics"

* tag 'metag-for-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag:
  metag: Fix atomic_*_return inline asm constraints
  metag: perf: fix build on Meta1
  metag: ftrace: remove the misleading comment for ftrace_dyn_arch_init
This commit is contained in:
Linus Torvalds 2016-05-16 16:50:38 -07:00
commit ce6a01c2d5
3 changed files with 4 additions and 2 deletions
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2
arch/metag/include/asm/atomic_lnkget.h
View File

@ -61,7 +61,7 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \
" CMPT %0, #HI(0x02000000)\n" \ " CMPT %0, #HI(0x02000000)\n" \
" BNZ 1b\n" \ " BNZ 1b\n" \
: "=&d" (temp), "=&da" (result) \ : "=&d" (temp), "=&da" (result) \
: "da" (&v->counter), "bd" (i) \ : "da" (&v->counter), "br" (i) \
: "cc"); \ : "cc"); \
\ \
smp_mb(); \ smp_mb(); \

1
arch/metag/kernel/ftrace.c
View File

@ -115,7 +115,6 @@ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
return ftrace_modify_code(ip, old, new); return ftrace_modify_code(ip, old, new);
} }
/* run from kstop_machine */
int __init ftrace_dyn_arch_init(void) int __init ftrace_dyn_arch_init(void)
{ {
return 0; return 0;

3
arch/metag/kernel/perf/perf_event.c
View File

@ -618,6 +618,8 @@ static void metag_pmu_enable_counter(struct hw_perf_event *event, int idx)
/* Check for a core internal or performance channel event. */ /* Check for a core internal or performance channel event. */
if (tmp) { if (tmp) {
/* PERF_ICORE/PERF_CHAN only exist since Meta2 */
#ifdef METAC_2_1
void *perf_addr; void *perf_addr;
/* /*
@ -640,6 +642,7 @@ static void metag_pmu_enable_counter(struct hw_perf_event *event, int idx)
if (perf_addr) if (perf_addr)
metag_out32((config & 0x0f), perf_addr); metag_out32((config & 0x0f), perf_addr);
#endif
/* /*
* Now we use the high nibble as the performance event to * Now we use the high nibble as the performance event to