Current code enables PPR and GA interrupts before setting up the
interrupt handler (in state_next()). Make sure interrupt handler
is in place before enabling these interrupt.
amd_iommu_enable_interrupts() gets called in normal boot, kdump as well
as in suspend/resume path. Hence moving interrupt enablement to this
function works fine.
Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Link: https://lore.kernel.org/r/20230628054554.6131-4-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
static void enable_iommus(void)
{
early_enable_iommus();
- enable_iommus_vapic();
- enable_iommus_v2();
}
static void disable_iommus(void)
goto out;
}
+ /*
+ * Interrupt handler is ready to process interrupts. Enable
+ * PPR and GA log interrupt for all IOMMUs.
+ */
+ enable_iommus_vapic();
+ enable_iommus_v2();
+
out:
return ret;
}
register_syscore_ops(&amd_iommu_syscore_ops);
ret = amd_iommu_init_pci();
init_state = ret ? IOMMU_INIT_ERROR : IOMMU_PCI_INIT;
- enable_iommus_vapic();
- enable_iommus_v2();
break;
case IOMMU_PCI_INIT:
ret = amd_iommu_enable_interrupts();