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authorGlenn Elliott <gelliott@cs.unc.edu>2012-03-04 19:47:13 -0500
committerGlenn Elliott <gelliott@cs.unc.edu>2012-03-04 19:47:13 -0500
commitc71c03bda1e86c9d5198c5d83f712e695c4f2a1e (patch)
treeecb166cb3e2b7e2adb3b5e292245fefd23381ac8 /arch/mips/sibyte/sb1250
parentea53c912f8a86a8567697115b6a0d8152beee5c8 (diff)
parent6a00f206debf8a5c8899055726ad127dbeeed098 (diff)
Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp
Conflicts: litmus/sched_cedf.c
Diffstat (limited to 'arch/mips/sibyte/sb1250')
-rw-r--r--arch/mips/sibyte/sb1250/irq.c56
-rw-r--r--arch/mips/sibyte/sb1250/smp.c7
2 files changed, 20 insertions, 43 deletions
diff --git a/arch/mips/sibyte/sb1250/irq.c b/arch/mips/sibyte/sb1250/irq.c
index 12ac04a658ee..be4460a5f6a8 100644
--- a/arch/mips/sibyte/sb1250/irq.c
+++ b/arch/mips/sibyte/sb1250/irq.c
@@ -43,31 +43,10 @@
43 * for interrupt lines 43 * for interrupt lines
44 */ 44 */
45 45
46
47static void end_sb1250_irq(unsigned int irq);
48static void enable_sb1250_irq(unsigned int irq);
49static void disable_sb1250_irq(unsigned int irq);
50static void ack_sb1250_irq(unsigned int irq);
51#ifdef CONFIG_SMP
52static int sb1250_set_affinity(unsigned int irq, const struct cpumask *mask);
53#endif
54
55#ifdef CONFIG_SIBYTE_HAS_LDT 46#ifdef CONFIG_SIBYTE_HAS_LDT
56extern unsigned long ldt_eoi_space; 47extern unsigned long ldt_eoi_space;
57#endif 48#endif
58 49
59static struct irq_chip sb1250_irq_type = {
60 .name = "SB1250-IMR",
61 .ack = ack_sb1250_irq,
62 .mask = disable_sb1250_irq,
63 .mask_ack = ack_sb1250_irq,
64 .unmask = enable_sb1250_irq,
65 .end = end_sb1250_irq,
66#ifdef CONFIG_SMP
67 .set_affinity = sb1250_set_affinity
68#endif
69};
70
71/* Store the CPU id (not the logical number) */ 50/* Store the CPU id (not the logical number) */
72int sb1250_irq_owner[SB1250_NR_IRQS]; 51int sb1250_irq_owner[SB1250_NR_IRQS];
73 52
@@ -102,9 +81,11 @@ void sb1250_unmask_irq(int cpu, int irq)
102} 81}
103 82
104#ifdef CONFIG_SMP 83#ifdef CONFIG_SMP
105static int sb1250_set_affinity(unsigned int irq, const struct cpumask *mask) 84static int sb1250_set_affinity(struct irq_data *d, const struct cpumask *mask,
85 bool force)
106{ 86{
107 int i = 0, old_cpu, cpu, int_on; 87 int i = 0, old_cpu, cpu, int_on;
88 unsigned int irq = d->irq;
108 u64 cur_ints; 89 u64 cur_ints;
109 unsigned long flags; 90 unsigned long flags;
110 91
@@ -142,21 +123,17 @@ static int sb1250_set_affinity(unsigned int irq, const struct cpumask *mask)
142} 123}
143#endif 124#endif
144 125
145/*****************************************************************************/ 126static void enable_sb1250_irq(struct irq_data *d)
146
147static void disable_sb1250_irq(unsigned int irq)
148{ 127{
149 sb1250_mask_irq(sb1250_irq_owner[irq], irq); 128 unsigned int irq = d->irq;
150}
151 129
152static void enable_sb1250_irq(unsigned int irq)
153{
154 sb1250_unmask_irq(sb1250_irq_owner[irq], irq); 130 sb1250_unmask_irq(sb1250_irq_owner[irq], irq);
155} 131}
156 132
157 133
158static void ack_sb1250_irq(unsigned int irq) 134static void ack_sb1250_irq(struct irq_data *d)
159{ 135{
136 unsigned int irq = d->irq;
160#ifdef CONFIG_SIBYTE_HAS_LDT 137#ifdef CONFIG_SIBYTE_HAS_LDT
161 u64 pending; 138 u64 pending;
162 139
@@ -199,21 +176,22 @@ static void ack_sb1250_irq(unsigned int irq)
199 sb1250_mask_irq(sb1250_irq_owner[irq], irq); 176 sb1250_mask_irq(sb1250_irq_owner[irq], irq);
200} 177}
201 178
202 179static struct irq_chip sb1250_irq_type = {
203static void end_sb1250_irq(unsigned int irq) 180 .name = "SB1250-IMR",
204{ 181 .irq_mask_ack = ack_sb1250_irq,
205 if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) { 182 .irq_unmask = enable_sb1250_irq,
206 sb1250_unmask_irq(sb1250_irq_owner[irq], irq); 183#ifdef CONFIG_SMP
207 } 184 .irq_set_affinity = sb1250_set_affinity
208} 185#endif
209 186};
210 187
211void __init init_sb1250_irqs(void) 188void __init init_sb1250_irqs(void)
212{ 189{
213 int i; 190 int i;
214 191
215 for (i = 0; i < SB1250_NR_IRQS; i++) { 192 for (i = 0; i < SB1250_NR_IRQS; i++) {
216 set_irq_chip_and_handler(i, &sb1250_irq_type, handle_level_irq); 193 irq_set_chip_and_handler(i, &sb1250_irq_type,
194 handle_level_irq);
217 sb1250_irq_owner[i] = 0; 195 sb1250_irq_owner[i] = 0;
218 } 196 }
219} 197}
diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c
index c00a5cb1128d..38e7f6bd7922 100644
--- a/arch/mips/sibyte/sb1250/smp.c
+++ b/arch/mips/sibyte/sb1250/smp.c
@@ -21,6 +21,7 @@
21#include <linux/interrupt.h> 21#include <linux/interrupt.h>
22#include <linux/smp.h> 22#include <linux/smp.h>
23#include <linux/kernel_stat.h> 23#include <linux/kernel_stat.h>
24#include <linux/sched.h>
24 25
25#include <asm/mmu_context.h> 26#include <asm/mmu_context.h>
26#include <asm/io.h> 27#include <asm/io.h>
@@ -177,10 +178,8 @@ void sb1250_mailbox_interrupt(void)
177 /* Clear the mailbox to clear the interrupt */ 178 /* Clear the mailbox to clear the interrupt */
178 ____raw_writeq(((u64)action) << 48, mailbox_clear_regs[cpu]); 179 ____raw_writeq(((u64)action) << 48, mailbox_clear_regs[cpu]);
179 180
180 /* 181 if (action & SMP_RESCHEDULE_YOURSELF)
181 * Nothing to do for SMP_RESCHEDULE_YOURSELF; returning from the 182 scheduler_ipi();
182 * interrupt will do the reschedule for us
183 */
184 183
185 if (action & SMP_CALL_FUNCTION) 184 if (action & SMP_CALL_FUNCTION)
186 smp_call_function_interrupt(); 185 smp_call_function_interrupt();