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amd-iommu: introduce for_each_iommu* macros

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This patch introduces the for_each_iommu and for_each_iommu_safe macros
to simplify the developers life when having to iterate over all AMD
IOMMUs in the system.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Joerg Roedel
2009-05-04 15:06:20 +02:00
parent 41fb454ebe
commit 3bd221724a
3 changed files with 16 additions and 8 deletions
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8
arch/x86/kernel/amd_iommu.c
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@@ -213,7 +213,7 @@ irqreturn_t amd_iommu_int_handler(int irq, void *data)
{
struct amd_iommu *iommu;
list_for_each_entry(iommu, &amd_iommu_list, list)
for_each_iommu(iommu)
iommu_poll_events(iommu);
return IRQ_HANDLED;
@@ -440,7 +440,7 @@ static void iommu_flush_domain(u16 domid)
__iommu_build_inv_iommu_pages(&cmd, CMD_INV_IOMMU_ALL_PAGES_ADDRESS,
domid, 1, 1);
list_for_each_entry(iommu, &amd_iommu_list, list) {
for_each_iommu(iommu) {
spin_lock_irqsave(&iommu->lock, flags);
__iommu_queue_command(iommu, &cmd);
__iommu_completion_wait(iommu);
@@ -1672,7 +1672,7 @@ int __init amd_iommu_init_dma_ops(void)
* found in the system. Devices not assigned to any other
* protection domain will be assigned to the default one.
*/
list_for_each_entry(iommu, &amd_iommu_list, list) {
for_each_iommu(iommu) {
iommu->default_dom = dma_ops_domain_alloc(iommu, order);
if (iommu->default_dom == NULL)
return -ENOMEM;
@@ -1710,7 +1710,7 @@ int __init amd_iommu_init_dma_ops(void)
free_domains:
list_for_each_entry(iommu, &amd_iommu_list, list) {
for_each_iommu(iommu) {
if (iommu->default_dom)
dma_ops_domain_free(iommu->default_dom);
}