diff options
Diffstat (limited to 'arch/mips/include/asm/irq.h')
-rw-r--r-- | arch/mips/include/asm/irq.h | 64 |
1 files changed, 33 insertions, 31 deletions
diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h index b003ed52ed1..0ec01294b06 100644 --- a/arch/mips/include/asm/irq.h +++ b/arch/mips/include/asm/irq.h | |||
@@ -55,9 +55,9 @@ static inline void smtc_im_ack_irq(unsigned int irq) | |||
55 | #ifdef CONFIG_MIPS_MT_SMTC_IRQAFF | 55 | #ifdef CONFIG_MIPS_MT_SMTC_IRQAFF |
56 | #include <linux/cpumask.h> | 56 | #include <linux/cpumask.h> |
57 | 57 | ||
58 | extern int plat_set_irq_affinity(unsigned int irq, | 58 | extern int plat_set_irq_affinity(struct irq_data *d, |
59 | const struct cpumask *affinity); | 59 | const struct cpumask *affinity, bool force); |
60 | extern void smtc_forward_irq(unsigned int irq); | 60 | extern void smtc_forward_irq(struct irq_data *d); |
61 | 61 | ||
62 | /* | 62 | /* |
63 | * IRQ affinity hook invoked at the beginning of interrupt dispatch | 63 | * IRQ affinity hook invoked at the beginning of interrupt dispatch |
@@ -70,51 +70,53 @@ extern void smtc_forward_irq(unsigned int irq); | |||
70 | * cpumask implementations, this version is optimistically assuming | 70 | * cpumask implementations, this version is optimistically assuming |
71 | * that cpumask.h macro overhead is reasonable during interrupt dispatch. | 71 | * that cpumask.h macro overhead is reasonable during interrupt dispatch. |
72 | */ | 72 | */ |
73 | #define IRQ_AFFINITY_HOOK(irq) \ | 73 | static inline int handle_on_other_cpu(unsigned int irq) |
74 | do { \ | 74 | { |
75 | if (!cpumask_test_cpu(smp_processor_id(), irq_desc[irq].affinity)) {\ | 75 | struct irq_data *d = irq_get_irq_data(irq); |
76 | smtc_forward_irq(irq); \ | 76 | |
77 | irq_exit(); \ | 77 | if (cpumask_test_cpu(smp_processor_id(), d->affinity)) |
78 | return; \ | 78 | return 0; |
79 | } \ | 79 | smtc_forward_irq(d); |
80 | } while (0) | 80 | return 1; |
81 | } | ||
81 | 82 | ||
82 | #else /* Not doing SMTC affinity */ | 83 | #else /* Not doing SMTC affinity */ |
83 | 84 | ||
84 | #define IRQ_AFFINITY_HOOK(irq) do { } while (0) | 85 | static inline int handle_on_other_cpu(unsigned int irq) { return 0; } |
85 | 86 | ||
86 | #endif /* CONFIG_MIPS_MT_SMTC_IRQAFF */ | 87 | #endif /* CONFIG_MIPS_MT_SMTC_IRQAFF */ |
87 | 88 | ||
88 | #ifdef CONFIG_MIPS_MT_SMTC_IM_BACKSTOP | 89 | #ifdef CONFIG_MIPS_MT_SMTC_IM_BACKSTOP |
89 | 90 | ||
91 | static inline void smtc_im_backstop(unsigned int irq) | ||
92 | { | ||
93 | if (irq_hwmask[irq] & 0x0000ff00) | ||
94 | write_c0_tccontext(read_c0_tccontext() & | ||
95 | ~(irq_hwmask[irq] & 0x0000ff00)); | ||
96 | } | ||
97 | |||
90 | /* | 98 | /* |
91 | * Clear interrupt mask handling "backstop" if irq_hwmask | 99 | * Clear interrupt mask handling "backstop" if irq_hwmask |
92 | * entry so indicates. This implies that the ack() or end() | 100 | * entry so indicates. This implies that the ack() or end() |
93 | * functions will take over re-enabling the low-level mask. | 101 | * functions will take over re-enabling the low-level mask. |
94 | * Otherwise it will be done on return from exception. | 102 | * Otherwise it will be done on return from exception. |
95 | */ | 103 | */ |
96 | #define __DO_IRQ_SMTC_HOOK(irq) \ | 104 | static inline int smtc_handle_on_other_cpu(unsigned int irq) |
97 | do { \ | 105 | { |
98 | IRQ_AFFINITY_HOOK(irq); \ | 106 | int ret = handle_on_other_cpu(irq); |
99 | if (irq_hwmask[irq] & 0x0000ff00) \ | 107 | |
100 | write_c0_tccontext(read_c0_tccontext() & \ | 108 | if (!ret) |
101 | ~(irq_hwmask[irq] & 0x0000ff00)); \ | 109 | smtc_im_backstop(irq); |
102 | } while (0) | 110 | return ret; |
103 | 111 | } | |
104 | #define __NO_AFFINITY_IRQ_SMTC_HOOK(irq) \ | ||
105 | do { \ | ||
106 | if (irq_hwmask[irq] & 0x0000ff00) \ | ||
107 | write_c0_tccontext(read_c0_tccontext() & \ | ||
108 | ~(irq_hwmask[irq] & 0x0000ff00)); \ | ||
109 | } while (0) | ||
110 | 112 | ||
111 | #else | 113 | #else |
112 | 114 | ||
113 | #define __DO_IRQ_SMTC_HOOK(irq) \ | 115 | static inline void smtc_im_backstop(unsigned int irq) { } |
114 | do { \ | 116 | static inline int smtc_handle_on_other_cpu(unsigned int irq) |
115 | IRQ_AFFINITY_HOOK(irq); \ | 117 | { |
116 | } while (0) | 118 | return handle_on_other_cpu(irq); |
117 | #define __NO_AFFINITY_IRQ_SMTC_HOOK(irq) do { } while (0) | 119 | } |
118 | 120 | ||
119 | #endif | 121 | #endif |
120 | 122 | ||