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authorChris Metcalf <cmetcalf@tilera.com>2012-06-06 11:21:44 -0400
committerChris Metcalf <cmetcalf@tilera.com>2012-06-06 11:29:31 -0400
commit10db9e009af5c3647b9ee742dcb14f6ff447a2a5 (patch)
treef386b8fff498c4594700d73af79c7b60d486b530 /arch
parentf8f5701bdaf9134b1f90e5044a82c66324d2073f (diff)
tile: remove cpu_idle_on_new_stack
This routine isn't used unless CONFIG_HOMECACHE is enabled, which isn't even available as a public configuration option yet. Since it no longer links correctly in 3.4, just remove it for now. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/tile/include/asm/thread_info.h5
-rw-r--r--arch/tile/kernel/entry.S14
2 files changed, 0 insertions, 19 deletions
diff --git a/arch/tile/include/asm/thread_info.h b/arch/tile/include/asm/thread_info.h
index 7e1fef36bde6..e9c670d7a7fe 100644
--- a/arch/tile/include/asm/thread_info.h
+++ b/arch/tile/include/asm/thread_info.h
@@ -91,11 +91,6 @@ extern void smp_nap(void);
91/* Enable interrupts racelessly and nap forever: helper for cpu_idle(). */ 91/* Enable interrupts racelessly and nap forever: helper for cpu_idle(). */
92extern void _cpu_idle(void); 92extern void _cpu_idle(void);
93 93
94/* Switch boot idle thread to a freshly-allocated stack and free old stack. */
95extern void cpu_idle_on_new_stack(struct thread_info *old_ti,
96 unsigned long new_sp,
97 unsigned long new_ss10);
98
99#else /* __ASSEMBLY__ */ 94#else /* __ASSEMBLY__ */
100 95
101/* 96/*
diff --git a/arch/tile/kernel/entry.S b/arch/tile/kernel/entry.S
index 133c4b56a99e..c31637baff28 100644
--- a/arch/tile/kernel/entry.S
+++ b/arch/tile/kernel/entry.S
@@ -68,20 +68,6 @@ STD_ENTRY(KBacktraceIterator_init_current)
68 jrp lr /* keep backtracer happy */ 68 jrp lr /* keep backtracer happy */
69 STD_ENDPROC(KBacktraceIterator_init_current) 69 STD_ENDPROC(KBacktraceIterator_init_current)
70 70
71/*
72 * Reset our stack to r1/r2 (sp and ksp0+cpu respectively), then
73 * free the old stack (passed in r0) and re-invoke cpu_idle().
74 * We update sp and ksp0 simultaneously to avoid backtracer warnings.
75 */
76STD_ENTRY(cpu_idle_on_new_stack)
77 {
78 move sp, r1
79 mtspr SPR_SYSTEM_SAVE_K_0, r2
80 }
81 jal free_thread_info
82 j cpu_idle
83 STD_ENDPROC(cpu_idle_on_new_stack)
84
85/* Loop forever on a nap during SMP boot. */ 71/* Loop forever on a nap during SMP boot. */
86STD_ENTRY(smp_nap) 72STD_ENTRY(smp_nap)
87 nap 73 nap