device: Move pci_dev_is_wake_source function

Move this function to pci_ops.c, which is already included in the smm
build. This is required to use this function in elog functionality,
which is called from SMM.

Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Ie5583c04366c9a16bc1b00a6892d39eeafe5da49
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47260
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>

4 files changed, 26 insertions, 27 deletions

diff --git a/src/device/pci_device.c b/src/device/pci_device.c
index 691ad6b3160a..6075ebeac71d 100644
--- a/src/device/pci_device.c
+++ b/src/device/pci_device.c
@@ -1648,21 +1648,3 @@ void pci_dev_disable_bus_master(const struct device *dev)
 	pci_update_config16(dev, PCI_COMMAND, ~PCI_COMMAND_MASTER, 0x0);
 }
 #endif
-
-bool pci_dev_is_wake_source(const struct device *dev)
-{
-	unsigned int pm_cap;
-	uint16_t pmcs;
-
-	if (dev->path.type != DEVICE_PATH_PCI)
-		return false;
-
-	pm_cap = pci_find_capability(dev, PCI_CAP_ID_PM);
-	if (!pm_cap)
-		return false;
-
-	pmcs = pci_read_config16(dev, pm_cap + PCI_PM_CTRL);
-
-	/* PCI Device is a wake source if PME_ENABLE and PME_STATUS are set in PMCS register. */
-	return (pmcs & PCI_PM_CTRL_PME_ENABLE) && (pmcs & PCI_PM_CTRL_PME_STATUS);
-}
diff --git a/src/device/pci_ops.c b/src/device/pci_ops.c
index 90f45bf21a61..aaa9f95fb1f4 100644
--- a/src/device/pci_ops.c
+++ b/src/device/pci_ops.c
@@ -78,3 +78,21 @@ void __noreturn pcidev_die(void)
 {
 	die("PCI: dev is NULL!\n");
 }
+
+bool pci_dev_is_wake_source(const struct device *dev)
+{
+	unsigned int pm_cap;
+	uint16_t pmcs;
+
+	if (dev->path.type != DEVICE_PATH_PCI)
+		return false;
+
+	pm_cap = pci_find_capability(dev, PCI_CAP_ID_PM);
+	if (!pm_cap)
+		return false;
+
+	pmcs = pci_s_read_config16(PCI_BDF(dev), pm_cap + PCI_PM_CTRL);
+
+	/* PCI Device is a wake source if PME_ENABLE and PME_STATUS are set in PMCS register. */
+	return (pmcs & PCI_PM_CTRL_PME_ENABLE) && (pmcs & PCI_PM_CTRL_PME_STATUS);
+}
diff --git a/src/include/device/pci.h b/src/include/device/pci.h
index 777f0303552e..045eec1aa667 100644
--- a/src/include/device/pci.h
+++ b/src/include/device/pci.h
@@ -79,15 +79,6 @@ void pci_bus_enable_resources(struct device *dev);
 void pci_bus_reset(struct bus *bus);
 struct device *pci_probe_dev(struct device *dev, struct bus *bus,
 				unsigned int devfn);
-
-/*
- * Determine if the given PCI device is the source of wake from sleep by checking PME_STATUS and
- * PME_ENABLE bits in PM control and status register.
- *
- * Returns true if PCI device is wake source, false otherwise.
- */
-bool pci_dev_is_wake_source(const struct device *dev);
-
 void do_pci_scan_bridge(struct device *dev,
 	void (*do_scan_bus)(struct bus *bus,
 		unsigned int min_devfn, unsigned int max_devfn));
diff --git a/src/include/device/pci_ops.h b/src/include/device/pci_ops.h
index cdf02d6a5643..7fe7d429e2fb 100644
--- a/src/include/device/pci_ops.h
+++ b/src/include/device/pci_ops.h
@@ -209,4 +209,12 @@ u16 pci_find_capability(const struct device *dev, u16 cap)
 	return pci_s_find_capability(PCI_BDF(dev), cap);
 }
 
+/*
+ * Determine if the given PCI device is the source of wake from sleep by checking PME_STATUS and
+ * PME_ENABLE bits in PM control and status register.
+ *
+ * Returns true if PCI device is wake source, false otherwise.
+ */
+bool pci_dev_is_wake_source(const struct device *dev);
+
 #endif /* PCI_OPS_H */