Messages in this thread Patch in this message | | | From | Ricardo Neri <> | Subject | [PATCH v7 07/24] iommu/vt-d: Rework prepare_irte() to support per-interrupt delivery mode | Date | Wed, 1 Mar 2023 15:47:36 -0800 |
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struct irq_cfg::delivery_mode specifies the delivery mode of each interrupt separately. Configuring the delivery mode of an IRTE would require adding a third argument to prepare_irte(). Instead, take a pointer to the irq_cfg for which an IRTE is being configured. No functional changes.
Cc: Andi Kleen <ak@linux.intel.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: "Ravi V. Shankar" <ravi.v.shankar@intel.com> Cc: Lu Baolu <baolu.lu@linux.intel.com> Cc: Stephane Eranian <eranian@google.com> Cc: iommu@lists.linux-foundation.org Cc: linuxppc-dev@lists.ozlabs.org Cc: x86@kernel.org Reviewed-by: Ashok Raj <ashok.raj@intel.com> Reviewed-by: Tony Luck <tony.luck@intel.com> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com> --- Changes since v6: * None
Changes since v5: * Only change the signature of prepare_irte(). A separate patch changes the setting of the delivery_mode.
Changes since v4: * None
Changes since v3: * None
Changes since v2: * None
Changes since v1: * Introduced this patch. --- drivers/iommu/intel/irq_remapping.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/iommu/intel/irq_remapping.c b/drivers/iommu/intel/irq_remapping.c index 2d68f94ae0ee..1fe30c31fcbe 100644 --- a/drivers/iommu/intel/irq_remapping.c +++ b/drivers/iommu/intel/irq_remapping.c @@ -1106,7 +1106,7 @@ void intel_irq_remap_add_device(struct dmar_pci_notify_info *info) dev_set_msi_domain(&info->dev->dev, map_dev_to_ir(info->dev)); } -static void prepare_irte(struct irte *irte, int vector, unsigned int dest) +static void prepare_irte(struct irte *irte, struct irq_cfg *irq_cfg) { memset(irte, 0, sizeof(*irte)); @@ -1121,8 +1121,8 @@ static void prepare_irte(struct irte *irte, int vector, unsigned int dest) */ irte->trigger_mode = 0; irte->dlvry_mode = apic->delivery_mode; - irte->vector = vector; - irte->dest_id = IRTE_DEST(dest); + irte->vector = irq_cfg->vector; + irte->dest_id = IRTE_DEST(irq_cfg->dest_apicid); /* * When using the destination mode of physical APICID, only the @@ -1273,8 +1273,7 @@ static void intel_irq_remapping_prepare_irte(struct intel_ir_data *data, { struct irte *irte = &data->irte_entry; - prepare_irte(irte, irq_cfg->vector, irq_cfg->dest_apicid); - + prepare_irte(irte, irq_cfg); switch (info->type) { case X86_IRQ_ALLOC_TYPE_IOAPIC: /* Set source-id of interrupt request */ -- 2.25.1
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