AuxXxilium/linux_dsm_epyc7002
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c2c7286ac6
linux_dsm_epyc7002/drivers/iommu
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Suresh Siddha c2c7286ac6 intr_remap: Call dmar_dev_scope_init() explicitly 
Both DMA-remapping aswell as Interrupt-remapping depend on the
dmar dev scope to be initialized. When both DMA and
IRQ-remapping are enabled, we depend on DMA-remapping init code
to call dmar_dev_scope_init(). This resulted in not doing this
init when DMA-remapping was turned off but interrupt-remapping
turned on in the kernel config.

This caused interrupt routing to break with CONFIG_INTR_REMAP=y
and CONFIG_DMAR=n.

This issue was introduced by this commit:

 | commit 9d5ce73a64
 | Author: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
 | Date:   Tue Nov 10 19:46:16 2009 +0900
 |
 |    x86: intel-iommu: Convert detect_intel_iommu to use iommu_init hook

Fix this by calling dmar_dev_scope_init() explicitly from the
interrupt remapping code too.

Reported-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: yinghai@kernel.org
Cc: youquan.song@intel.com
Cc: joerg.roedel@amd.com
Cc: tony.luck@intel.com
Cc: dwmw2@infradead.org
Link: http://lkml.kernel.org/r/20110824001456.229207526@sbsiddha-desk.sc.intel.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-09-21 10:21:52 +02:00
..
amd_iommu_init.c iommu/amd: Move missing parts to drivers/iommu 2011-06-21 10:49:31 +02:00
amd_iommu_proto.h iommu/amd: Move missing parts to drivers/iommu 2011-06-21 10:49:31 +02:00
amd_iommu_types.h Merge branches 'amd/transparent-bridge' and 'core' 2011-06-21 11:14:10 +02:00
amd_iommu.c iommu/amd: Don't take domain->lock recursivly 2011-09-02 14:19:50 +02:00
dmar.c intr_remap: Call dmar_dev_scope_init() explicitly 2011-09-21 10:21:52 +02:00
intel-iommu.c intr_remap: Call dmar_dev_scope_init() explicitly 2011-09-21 10:21:52 +02:00
intr_remapping.c intr_remap: Call dmar_dev_scope_init() explicitly 2011-09-21 10:21:52 +02:00
intr_remapping.h x86/ia64: intel-iommu: move to drivers/iommu/ 2011-06-21 10:49:30 +02:00
iommu.c
iova.c x86/ia64: intel-iommu: move to drivers/iommu/ 2011-06-21 10:49:30 +02:00
Kconfig iommu: Move iommu Kconfig entries to submenu 2011-06-21 10:49:30 +02:00
Makefile iommu/amd: Move missing parts to drivers/iommu 2011-06-21 10:49:31 +02:00
msm_iommu_dev.c
msm_iommu.c