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authorIngo Molnar <mingo@elte.hu>2009-03-01 06:47:58 -0500
committerIngo Molnar <mingo@elte.hu>2009-03-01 06:47:58 -0500
commit55f2b78995826d549401bdf20abeac1832636bb6 (patch)
tree931b31f3b6e0879df0f9a1d58ffd040d9a652f2e /drivers/pci/intr_remapping.c
parentf5c1aa1537be39d8b9bb5279b5881d81898fd3cd (diff)
parent92b9af9e4f144535c65aee673cfad309f25fa465 (diff)
Merge branch 'x86/urgent' into x86/pat
Diffstat (limited to 'drivers/pci/intr_remapping.c')
-rw-r--r--drivers/pci/intr_remapping.c21
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c
index 5a57753ea9fc..8e44db040db7 100644
--- a/drivers/pci/intr_remapping.c
+++ b/drivers/pci/intr_remapping.c
@@ -208,7 +208,7 @@ int alloc_irte(struct intel_iommu *iommu, int irq, u16 count)
208 return index; 208 return index;
209} 209}
210 210
211static void qi_flush_iec(struct intel_iommu *iommu, int index, int mask) 211static int qi_flush_iec(struct intel_iommu *iommu, int index, int mask)
212{ 212{
213 struct qi_desc desc; 213 struct qi_desc desc;
214 214
@@ -216,7 +216,7 @@ static void qi_flush_iec(struct intel_iommu *iommu, int index, int mask)
216 | QI_IEC_SELECTIVE; 216 | QI_IEC_SELECTIVE;
217 desc.high = 0; 217 desc.high = 0;
218 218
219 qi_submit_sync(&desc, iommu); 219 return qi_submit_sync(&desc, iommu);
220} 220}
221 221
222int map_irq_to_irte_handle(int irq, u16 *sub_handle) 222int map_irq_to_irte_handle(int irq, u16 *sub_handle)
@@ -284,6 +284,7 @@ int clear_irte_irq(int irq, struct intel_iommu *iommu, u16 index)
284 284
285int modify_irte(int irq, struct irte *irte_modified) 285int modify_irte(int irq, struct irte *irte_modified)
286{ 286{
287 int rc;
287 int index; 288 int index;
288 struct irte *irte; 289 struct irte *irte;
289 struct intel_iommu *iommu; 290 struct intel_iommu *iommu;
@@ -304,14 +305,15 @@ int modify_irte(int irq, struct irte *irte_modified)
304 set_64bit((unsigned long *)irte, irte_modified->low | (1 << 1)); 305 set_64bit((unsigned long *)irte, irte_modified->low | (1 << 1));
305 __iommu_flush_cache(iommu, irte, sizeof(*irte)); 306 __iommu_flush_cache(iommu, irte, sizeof(*irte));
306 307
307 qi_flush_iec(iommu, index, 0); 308 rc = qi_flush_iec(iommu, index, 0);
308
309 spin_unlock(&irq_2_ir_lock); 309 spin_unlock(&irq_2_ir_lock);
310 return 0; 310
311 return rc;
311} 312}
312 313
313int flush_irte(int irq) 314int flush_irte(int irq)
314{ 315{
316 int rc;
315 int index; 317 int index;
316 struct intel_iommu *iommu; 318 struct intel_iommu *iommu;
317 struct irq_2_iommu *irq_iommu; 319 struct irq_2_iommu *irq_iommu;
@@ -327,10 +329,10 @@ int flush_irte(int irq)
327 329
328 index = irq_iommu->irte_index + irq_iommu->sub_handle; 330 index = irq_iommu->irte_index + irq_iommu->sub_handle;
329 331
330 qi_flush_iec(iommu, index, irq_iommu->irte_mask); 332 rc = qi_flush_iec(iommu, index, irq_iommu->irte_mask);
331 spin_unlock(&irq_2_ir_lock); 333 spin_unlock(&irq_2_ir_lock);
332 334
333 return 0; 335 return rc;
334} 336}
335 337
336struct intel_iommu *map_ioapic_to_ir(int apic) 338struct intel_iommu *map_ioapic_to_ir(int apic)
@@ -356,6 +358,7 @@ struct intel_iommu *map_dev_to_ir(struct pci_dev *dev)
356 358
357int free_irte(int irq) 359int free_irte(int irq)
358{ 360{
361 int rc = 0;
359 int index, i; 362 int index, i;
360 struct irte *irte; 363 struct irte *irte;
361 struct intel_iommu *iommu; 364 struct intel_iommu *iommu;
@@ -376,7 +379,7 @@ int free_irte(int irq)
376 if (!irq_iommu->sub_handle) { 379 if (!irq_iommu->sub_handle) {
377 for (i = 0; i < (1 << irq_iommu->irte_mask); i++) 380 for (i = 0; i < (1 << irq_iommu->irte_mask); i++)
378 set_64bit((unsigned long *)irte, 0); 381 set_64bit((unsigned long *)irte, 0);
379 qi_flush_iec(iommu, index, irq_iommu->irte_mask); 382 rc = qi_flush_iec(iommu, index, irq_iommu->irte_mask);
380 } 383 }
381 384
382 irq_iommu->iommu = NULL; 385 irq_iommu->iommu = NULL;
@@ -386,7 +389,7 @@ int free_irte(int irq)
386 389
387 spin_unlock(&irq_2_ir_lock); 390 spin_unlock(&irq_2_ir_lock);
388 391
389 return 0; 392 return rc;
390} 393}
391 394
392static void iommu_set_intr_remapping(struct intel_iommu *iommu, int mode) 395static void iommu_set_intr_remapping(struct intel_iommu *iommu, int mode)