[PATCH v2 14/25] cxl/events: Split event msgnum configuration from irq setup

[Ira Weiny <ira.weiny@intel.com>]

Dynamic Capacity Devices (DCD) require event interrupts to process
memory addition or removal.  BIOS may have control over non-DCD event
processing.  DCD interrupt configuration needs to be separate from
memory event interrupt configuration.

Split cxl_event_config_msgnums() from irq setup in preparation for
separate DCD interrupts configuration.

Signed-off-by: Ira Weiny <ira.weiny@intel.com>
---
 drivers/cxl/pci.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c
index f7f03599bc83..17bea49bbf4d 100644
--- a/drivers/cxl/pci.c
+++ b/drivers/cxl/pci.c
@@ -698,35 +698,31 @@ static int cxl_event_config_msgnums(struct cxl_memdev_state *mds,
 	return cxl_event_get_int_policy(mds, policy);
 }
 
-static int cxl_event_irqsetup(struct cxl_memdev_state *mds)
+static int cxl_event_irqsetup(struct cxl_memdev_state *mds,
+			      struct cxl_event_interrupt_policy *policy)
 {
 	struct cxl_dev_state *cxlds = &mds->cxlds;
-	struct cxl_event_interrupt_policy policy;
 	int rc;
 
-	rc = cxl_event_config_msgnums(mds, &policy);
-	if (rc)
-		return rc;
-
-	rc = cxl_event_req_irq(cxlds, policy.info_settings);
+	rc = cxl_event_req_irq(cxlds, policy->info_settings);
 	if (rc) {
 		dev_err(cxlds->dev, "Failed to get interrupt for event Info log\n");
 		return rc;
 	}
 
-	rc = cxl_event_req_irq(cxlds, policy.warn_settings);
+	rc = cxl_event_req_irq(cxlds, policy->warn_settings);
 	if (rc) {
 		dev_err(cxlds->dev, "Failed to get interrupt for event Warn log\n");
 		return rc;
 	}
 
-	rc = cxl_event_req_irq(cxlds, policy.failure_settings);
+	rc = cxl_event_req_irq(cxlds, policy->failure_settings);
 	if (rc) {
 		dev_err(cxlds->dev, "Failed to get interrupt for event Failure log\n");
 		return rc;
 	}
 
-	rc = cxl_event_req_irq(cxlds, policy.fatal_settings);
+	rc = cxl_event_req_irq(cxlds, policy->fatal_settings);
 	if (rc) {
 		dev_err(cxlds->dev, "Failed to get interrupt for event Fatal log\n");
 		return rc;
@@ -745,7 +741,7 @@ static bool cxl_event_int_is_fw(u8 setting)
 static int cxl_event_config(struct pci_host_bridge *host_bridge,
 			    struct cxl_memdev_state *mds, bool irq_avail)
 {
-	struct cxl_event_interrupt_policy policy;
+	struct cxl_event_interrupt_policy policy = { 0 };
 	int rc;
 
 	/*
@@ -773,11 +769,15 @@ static int cxl_event_config(struct pci_host_bridge *host_bridge,
 		return -EBUSY;
 	}
 
+	rc = cxl_event_config_msgnums(mds, &policy);
+	if (rc)
+		return rc;
+
 	rc = cxl_mem_alloc_event_buf(mds);
 	if (rc)
 		return rc;
 
-	rc = cxl_event_irqsetup(mds);
+	rc = cxl_event_irqsetup(mds, &policy);
 	if (rc)
 		return rc;
 

-- 
2.45.2