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| author | Yijing Wang <wangyijing@huawei.com> | 2014-09-17 13:32:19 +0400 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2014-09-25 21:11:47 +0400 |
| commit | 5fc24d8cb9d43e0db335137051092da03a6845dc (patch) | |
| tree | c476b207814a1409d74fffe7b0837ef372dc7f9a /drivers/iommu/amd_iommu.c | |
| parent | fb3e306515ba6a012364b698b8ca71c337424ed3 (diff) | |
| download | linux-5fc24d8cb9d43e0db335137051092da03a6845dc.tar.xz | |
iommu/irq_remapping: Fix the regression of hpet irq remapping
Commit 71054d8841b4 ("x86, hpet: Introduce x86_msi_ops.setup_hpet_msi")
introduced x86_msi_ops.setup_hpet_msi to setup hpet MSI irq
when irq remapping enabled. This caused a regression of
hpet MSI irq remapping.
Original code flow before commit 71054d8841b4:
hpet_setup_msi_irq()
arch_setup_hpet_msi()
setup_hpet_msi_remapped()
remap_ops->setup_hpet_msi()
alloc_irte()
msi_compose_msg()
hpet_msi_write()
...
Current code flow after commit 71054d8841b4:
hpet_setup_msi_irq()
x86_msi.setup_hpet_msi()
setup_hpet_msi_remapped()
intel_setup_hpet_msi()
alloc_irte()
Currently, we only call alloc_irte() for hpet MSI, but
do not composed and wrote its msg...
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd_iommu.c')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 8c5216633987..2f4f45d8dbfd 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -4233,7 +4233,7 @@ static int msi_setup_irq(struct pci_dev *pdev, unsigned int irq, return 0; } -static int setup_hpet_msi(unsigned int irq, unsigned int id) +static int alloc_hpet_msi(unsigned int irq, unsigned int id) { struct irq_2_irte *irte_info; struct irq_cfg *cfg; @@ -4272,6 +4272,6 @@ struct irq_remap_ops amd_iommu_irq_ops = { .compose_msi_msg = compose_msi_msg, .msi_alloc_irq = msi_alloc_irq, .msi_setup_irq = msi_setup_irq, - .setup_hpet_msi = setup_hpet_msi, + .alloc_hpet_msi = alloc_hpet_msi, }; #endif |