diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-21 17:11:46 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-21 17:11:46 -0400 |
commit | 4a60cfa9457749f7987fd4f3c956dbba5a281129 (patch) | |
tree | 85f3633276282cde0a3ac558d988704eaa3e68af /drivers/pci/msi.c | |
parent | 62bea97f54d806218a992b18d1f425cfb5060175 (diff) | |
parent | 27afdf2008da0b8878a73e32e4eb12381b84e224 (diff) |
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (96 commits)
apic, x86: Use BIOS settings for IBS and MCE threshold interrupt LVT offsets
apic, x86: Check if EILVT APIC registers are available (AMD only)
x86: ioapic: Call free_irte only if interrupt remapping enabled
arm: Use ARCH_IRQ_INIT_FLAGS
genirq, ARM: Fix boot on ARM platforms
genirq: Fix CONFIG_GENIRQ_NO_DEPRECATED=y build
x86: Switch sparse_irq allocations to GFP_KERNEL
genirq: Switch sparse_irq allocator to GFP_KERNEL
genirq: Make sparse_lock a mutex
x86: lguest: Use new irq allocator
genirq: Remove the now unused sparse irq leftovers
genirq: Sanitize dynamic irq handling
genirq: Remove arch_init_chip_data()
x86: xen: Sanitise sparse_irq handling
x86: Use sane enumeration
x86: uv: Clean up the direct access to irq_desc
x86: Make io_apic.c local functions static
genirq: Remove irq_2_iommu
x86: Speed up the irq_remapped check in hot pathes
intr_remap: Simplify the code further
...
Fix up trivial conflicts in arch/x86/Kconfig
Diffstat (limited to 'drivers/pci/msi.c')
-rw-r--r-- | drivers/pci/msi.c | 38 |
1 files changed, 16 insertions, 22 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 69b7be33b3a2..5fcf5aec680f 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c | |||
@@ -170,33 +170,31 @@ static void msix_mask_irq(struct msi_desc *desc, u32 flag) | |||
170 | desc->masked = __msix_mask_irq(desc, flag); | 170 | desc->masked = __msix_mask_irq(desc, flag); |
171 | } | 171 | } |
172 | 172 | ||
173 | static void msi_set_mask_bit(unsigned irq, u32 flag) | 173 | static void msi_set_mask_bit(struct irq_data *data, u32 flag) |
174 | { | 174 | { |
175 | struct msi_desc *desc = get_irq_msi(irq); | 175 | struct msi_desc *desc = irq_data_get_msi(data); |
176 | 176 | ||
177 | if (desc->msi_attrib.is_msix) { | 177 | if (desc->msi_attrib.is_msix) { |
178 | msix_mask_irq(desc, flag); | 178 | msix_mask_irq(desc, flag); |
179 | readl(desc->mask_base); /* Flush write to device */ | 179 | readl(desc->mask_base); /* Flush write to device */ |
180 | } else { | 180 | } else { |
181 | unsigned offset = irq - desc->dev->irq; | 181 | unsigned offset = data->irq - desc->dev->irq; |
182 | msi_mask_irq(desc, 1 << offset, flag << offset); | 182 | msi_mask_irq(desc, 1 << offset, flag << offset); |
183 | } | 183 | } |
184 | } | 184 | } |
185 | 185 | ||
186 | void mask_msi_irq(unsigned int irq) | 186 | void mask_msi_irq(struct irq_data *data) |
187 | { | 187 | { |
188 | msi_set_mask_bit(irq, 1); | 188 | msi_set_mask_bit(data, 1); |
189 | } | 189 | } |
190 | 190 | ||
191 | void unmask_msi_irq(unsigned int irq) | 191 | void unmask_msi_irq(struct irq_data *data) |
192 | { | 192 | { |
193 | msi_set_mask_bit(irq, 0); | 193 | msi_set_mask_bit(data, 0); |
194 | } | 194 | } |
195 | 195 | ||
196 | void read_msi_msg_desc(struct irq_desc *desc, struct msi_msg *msg) | 196 | void __read_msi_msg(struct msi_desc *entry, struct msi_msg *msg) |
197 | { | 197 | { |
198 | struct msi_desc *entry = get_irq_desc_msi(desc); | ||
199 | |||
200 | BUG_ON(entry->dev->current_state != PCI_D0); | 198 | BUG_ON(entry->dev->current_state != PCI_D0); |
201 | 199 | ||
202 | if (entry->msi_attrib.is_msix) { | 200 | if (entry->msi_attrib.is_msix) { |
@@ -227,15 +225,13 @@ void read_msi_msg_desc(struct irq_desc *desc, struct msi_msg *msg) | |||
227 | 225 | ||
228 | void read_msi_msg(unsigned int irq, struct msi_msg *msg) | 226 | void read_msi_msg(unsigned int irq, struct msi_msg *msg) |
229 | { | 227 | { |
230 | struct irq_desc *desc = irq_to_desc(irq); | 228 | struct msi_desc *entry = get_irq_msi(irq); |
231 | 229 | ||
232 | read_msi_msg_desc(desc, msg); | 230 | __read_msi_msg(entry, msg); |
233 | } | 231 | } |
234 | 232 | ||
235 | void get_cached_msi_msg_desc(struct irq_desc *desc, struct msi_msg *msg) | 233 | void __get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg) |
236 | { | 234 | { |
237 | struct msi_desc *entry = get_irq_desc_msi(desc); | ||
238 | |||
239 | /* Assert that the cache is valid, assuming that | 235 | /* Assert that the cache is valid, assuming that |
240 | * valid messages are not all-zeroes. */ | 236 | * valid messages are not all-zeroes. */ |
241 | BUG_ON(!(entry->msg.address_hi | entry->msg.address_lo | | 237 | BUG_ON(!(entry->msg.address_hi | entry->msg.address_lo | |
@@ -246,15 +242,13 @@ void get_cached_msi_msg_desc(struct irq_desc *desc, struct msi_msg *msg) | |||
246 | 242 | ||
247 | void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg) | 243 | void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg) |
248 | { | 244 | { |
249 | struct irq_desc *desc = irq_to_desc(irq); | 245 | struct msi_desc *entry = get_irq_msi(irq); |
250 | 246 | ||
251 | get_cached_msi_msg_desc(desc, msg); | 247 | __get_cached_msi_msg(entry, msg); |
252 | } | 248 | } |
253 | 249 | ||
254 | void write_msi_msg_desc(struct irq_desc *desc, struct msi_msg *msg) | 250 | void __write_msi_msg(struct msi_desc *entry, struct msi_msg *msg) |
255 | { | 251 | { |
256 | struct msi_desc *entry = get_irq_desc_msi(desc); | ||
257 | |||
258 | if (entry->dev->current_state != PCI_D0) { | 252 | if (entry->dev->current_state != PCI_D0) { |
259 | /* Don't touch the hardware now */ | 253 | /* Don't touch the hardware now */ |
260 | } else if (entry->msi_attrib.is_msix) { | 254 | } else if (entry->msi_attrib.is_msix) { |
@@ -292,9 +286,9 @@ void write_msi_msg_desc(struct irq_desc *desc, struct msi_msg *msg) | |||
292 | 286 | ||
293 | void write_msi_msg(unsigned int irq, struct msi_msg *msg) | 287 | void write_msi_msg(unsigned int irq, struct msi_msg *msg) |
294 | { | 288 | { |
295 | struct irq_desc *desc = irq_to_desc(irq); | 289 | struct msi_desc *entry = get_irq_msi(irq); |
296 | 290 | ||
297 | write_msi_msg_desc(desc, msg); | 291 | __write_msi_msg(entry, msg); |
298 | } | 292 | } |
299 | 293 | ||
300 | static void free_msi_irqs(struct pci_dev *dev) | 294 | static void free_msi_irqs(struct pci_dev *dev) |