diff options
Diffstat (limited to 'arch/powerpc/sysdev/mpic_u3msi.c')
-rw-r--r-- | arch/powerpc/sysdev/mpic_u3msi.c | 36 |
1 files changed, 12 insertions, 24 deletions
diff --git a/arch/powerpc/sysdev/mpic_u3msi.c b/arch/powerpc/sysdev/mpic_u3msi.c index 305b864c25d9..1d5a40899b74 100644 --- a/arch/powerpc/sysdev/mpic_u3msi.c +++ b/arch/powerpc/sysdev/mpic_u3msi.c | |||
@@ -40,6 +40,7 @@ static struct irq_chip mpic_u3msi_chip = { | |||
40 | .unmask = mpic_u3msi_unmask_irq, | 40 | .unmask = mpic_u3msi_unmask_irq, |
41 | .eoi = mpic_end_irq, | 41 | .eoi = mpic_end_irq, |
42 | .set_type = mpic_set_irq_type, | 42 | .set_type = mpic_set_irq_type, |
43 | .set_affinity = mpic_set_affinity, | ||
43 | .typename = "MPIC-U3MSI", | 44 | .typename = "MPIC-U3MSI", |
44 | }; | 45 | }; |
45 | 46 | ||
@@ -107,59 +108,46 @@ static void u3msi_teardown_msi_irqs(struct pci_dev *pdev) | |||
107 | return; | 108 | return; |
108 | } | 109 | } |
109 | 110 | ||
110 | static void u3msi_compose_msi_msg(struct pci_dev *pdev, int virq, | ||
111 | struct msi_msg *msg) | ||
112 | { | ||
113 | u64 addr; | ||
114 | |||
115 | addr = find_ht_magic_addr(pdev); | ||
116 | msg->address_lo = addr & 0xFFFFFFFF; | ||
117 | msg->address_hi = addr >> 32; | ||
118 | msg->data = virq_to_hw(virq); | ||
119 | |||
120 | pr_debug("u3msi: allocated virq 0x%x (hw 0x%lx) at address 0x%lx\n", | ||
121 | virq, virq_to_hw(virq), addr); | ||
122 | } | ||
123 | |||
124 | static int u3msi_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) | 111 | static int u3msi_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) |
125 | { | 112 | { |
126 | irq_hw_number_t hwirq; | 113 | irq_hw_number_t hwirq; |
127 | int rc; | ||
128 | unsigned int virq; | 114 | unsigned int virq; |
129 | struct msi_desc *entry; | 115 | struct msi_desc *entry; |
130 | struct msi_msg msg; | 116 | struct msi_msg msg; |
117 | u64 addr; | ||
118 | |||
119 | addr = find_ht_magic_addr(pdev); | ||
120 | msg.address_lo = addr & 0xFFFFFFFF; | ||
121 | msg.address_hi = addr >> 32; | ||
131 | 122 | ||
132 | list_for_each_entry(entry, &pdev->msi_list, list) { | 123 | list_for_each_entry(entry, &pdev->msi_list, list) { |
133 | hwirq = mpic_msi_alloc_hwirqs(msi_mpic, 1); | 124 | hwirq = mpic_msi_alloc_hwirqs(msi_mpic, 1); |
134 | if (hwirq < 0) { | 125 | if (hwirq < 0) { |
135 | rc = hwirq; | ||
136 | pr_debug("u3msi: failed allocating hwirq\n"); | 126 | pr_debug("u3msi: failed allocating hwirq\n"); |
137 | goto out_free; | 127 | return hwirq; |
138 | } | 128 | } |
139 | 129 | ||
140 | virq = irq_create_mapping(msi_mpic->irqhost, hwirq); | 130 | virq = irq_create_mapping(msi_mpic->irqhost, hwirq); |
141 | if (virq == NO_IRQ) { | 131 | if (virq == NO_IRQ) { |
142 | pr_debug("u3msi: failed mapping hwirq 0x%lx\n", hwirq); | 132 | pr_debug("u3msi: failed mapping hwirq 0x%lx\n", hwirq); |
143 | mpic_msi_free_hwirqs(msi_mpic, hwirq, 1); | 133 | mpic_msi_free_hwirqs(msi_mpic, hwirq, 1); |
144 | rc = -ENOSPC; | 134 | return -ENOSPC; |
145 | goto out_free; | ||
146 | } | 135 | } |
147 | 136 | ||
148 | set_irq_msi(virq, entry); | 137 | set_irq_msi(virq, entry); |
149 | set_irq_chip(virq, &mpic_u3msi_chip); | 138 | set_irq_chip(virq, &mpic_u3msi_chip); |
150 | set_irq_type(virq, IRQ_TYPE_EDGE_RISING); | 139 | set_irq_type(virq, IRQ_TYPE_EDGE_RISING); |
151 | 140 | ||
152 | u3msi_compose_msi_msg(pdev, virq, &msg); | 141 | pr_debug("u3msi: allocated virq 0x%x (hw 0x%lx) addr 0x%lx\n", |
142 | virq, hwirq, addr); | ||
143 | |||
144 | msg.data = hwirq; | ||
153 | write_msi_msg(virq, &msg); | 145 | write_msi_msg(virq, &msg); |
154 | 146 | ||
155 | hwirq++; | 147 | hwirq++; |
156 | } | 148 | } |
157 | 149 | ||
158 | return 0; | 150 | return 0; |
159 | |||
160 | out_free: | ||
161 | u3msi_teardown_msi_irqs(pdev); | ||
162 | return rc; | ||
163 | } | 151 | } |
164 | 152 | ||
165 | int mpic_u3msi_init(struct mpic *mpic) | 153 | int mpic_u3msi_init(struct mpic *mpic) |