Change in coreboot[master]: device: Rework bus master option

[Patrick Georgi (Code Review)]

Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/45149 )

Change subject: device: Rework bus master option
......................................................................

device: Rework bus master option

As an intermediate step for CB:45150, add an additional Kconfig option
which is used to configure bus mastering for any devices and use
PCI_ALLOW_BUS_MASTER to allow coreboot setting the bus mastering bit in
general.

Change-Id: I33b37a79022007a16e97350db61575b63fa8256b
Signed-off-by: Felix Singer 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45149
Reviewed-by: Nico Huber 
Tested-by: build bot (Jenkins) 
---
M src/device/Kconfig
M src/include/device/pci.h
2 files changed, 12 insertions(+), 1 deletion(-)

Approvals:
  build bot (Jenkins): Verified
  Nico Huber: Looks good to me, approved

diff --git a/src/device/Kconfig b/src/device/Kconfig
index cbe970f..777f3f5 100644
--- a/src/device/Kconfig
+++ b/src/device/Kconfig
@@ -532,6 +532,17 @@
      instance, for libpayload based payloads as the drivers don't enable
      bus mastering for PCI bridges.

+if PCI_ALLOW_BUS_MASTER
+
+config PCI_ALLOW_BUS_MASTER_ANY_DEVICE
+	bool "Any devices"
+	default y
+	help
+	  Allow coreboot to enable PCI bus mastering for any device. The actual
+	  selection of devices depends on the various PCI drivers in coreboot.
+
+endif # PCI_ALLOW_BUS_MASTER
+
 endif # PCI

if PCIEXP_PLUGIN_SUPPORT
diff --git a/src/include/device/pci.h b/src/include/device/pci.h
index 58f5904..777f030 100644
--- a/src/include/device/pci.h
+++ b/src/include/device/pci.h
@@ -144,7 +144,7 @@
 void pci_dev_request_bus_master(struct device *dev)
 #endif /* ENV_PCI_SIMPLE_DEVICE */
 {
-	if (CONFIG(PCI_ALLOW_BUS_MASTER))
+	if (CONFIG(PCI_ALLOW_BUS_MASTER_ANY_DEVICE))
    	pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
 }