From: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
This reverts commit c9e5bea273834a63b5e9ba90ad94b305ba50704e.
IMS (Interrupt Message Store) support appeared in v6.2, but there are no
users yet.
Remove it for now. We can add it back when a user comes along. If this is
re-added later, the relevant part of 41efa431244f ("PCI/MSI: Provide stubs
for IMS functions") should be squashed into it.
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
---
drivers/pci/msi/api.c | 50 -------------------------------------------
include/linux/pci.h | 3 ---
2 files changed, 53 deletions(-)
diff --git a/drivers/pci/msi/api.c b/drivers/pci/msi/api.c
index be679aa5db64..3c1cd29c5cf2 100644
--- a/drivers/pci/msi/api.c
+++ b/drivers/pci/msi/api.c
@@ -365,56 +365,6 @@ const struct cpumask *pci_irq_get_affinity(struct pci_dev *dev, int nr)
}
EXPORT_SYMBOL(pci_irq_get_affinity);
-/**
- * pci_ims_alloc_irq - Allocate an interrupt on a PCI/IMS interrupt domain
- * @dev: The PCI device to operate on
- * @icookie: Pointer to an IMS implementation specific cookie for this
- * IMS instance (PASID, queue ID, pointer...).
- * The cookie content is copied into the MSI descriptor for the
- * interrupt chip callbacks or domain specific setup functions.
- * @affdesc: Optional pointer to an interrupt affinity descriptor
- *
- * There is no index for IMS allocations as IMS is an implementation
- * specific storage and does not have any direct associations between
- * index, which might be a pure software construct, and device
- * functionality. This association is established by the driver either via
- * the index - if there is a hardware table - or in case of purely software
- * managed IMS implementation the association happens via the
- * irq_write_msi_msg() callback of the implementation specific interrupt
- * chip, which utilizes the provided @icookie to store the MSI message in
- * the appropriate place.
- *
- * Return: A struct msi_map
- *
- * On success msi_map::index contains the allocated index (>= 0) and
- * msi_map::virq the allocated Linux interrupt number (> 0).
- *
- * On fail msi_map::index contains the error code and msi_map::virq
- * is set to 0.
- */
-struct msi_map pci_ims_alloc_irq(struct pci_dev *dev, union msi_instance_cookie *icookie,
- const struct irq_affinity_desc *affdesc)
-{
- return msi_domain_alloc_irq_at(&dev->dev, MSI_SECONDARY_DOMAIN, MSI_ANY_INDEX,
- affdesc, icookie);
-}
-EXPORT_SYMBOL_GPL(pci_ims_alloc_irq);
-
-/**
- * pci_ims_free_irq - Allocate an interrupt on a PCI/IMS interrupt domain
- * which was allocated via pci_ims_alloc_irq()
- * @dev: The PCI device to operate on
- * @map: A struct msi_map describing the interrupt to free as
- * returned from pci_ims_alloc_irq()
- */
-void pci_ims_free_irq(struct pci_dev *dev, struct msi_map map)
-{
- if (WARN_ON_ONCE(map.index < 0 || map.virq <= 0))
- return;
- msi_domain_free_irqs_range(&dev->dev, MSI_SECONDARY_DOMAIN, map.index, map.index);
-}
-EXPORT_SYMBOL_GPL(pci_ims_free_irq);
-
/**
* pci_free_irq_vectors() - Free previously allocated IRQs for a device
* @dev: the PCI device to operate on
diff --git a/include/linux/pci.h b/include/linux/pci.h
index abbef75b2b92..3deb3e42d990 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -2668,9 +2668,6 @@ struct msi_domain_template;
bool pci_create_ims_domain(struct pci_dev *pdev, const struct msi_domain_template *template,
unsigned int hwsize, void *data);
-struct msi_map pci_ims_alloc_irq(struct pci_dev *pdev, union msi_instance_cookie *icookie,
- const struct irq_affinity_desc *affdesc);
-void pci_ims_free_irq(struct pci_dev *pdev, struct msi_map map);
#include <linux/dma-mapping.h>
--
2.34.1
