commit 217ca36377f25f8896b6fee2f4c4700580f5e412
author Subrata Banik <subrata.banik@intel.com> Fri Mar 15 17:18:44 2019 +0530
committer Subrata Banik <subrata.banik@intel.com> Sun Mar 17 03:45:50 2019 +0000
tree 6717929c79f1ee13ba0494947ba1232ff7bdc01a
parent 41483c9dff9bd68b4c67b947c4cd7175951b9723

resources: introduce io_resource()

This patch creates new resource function to perform allocation
of IO resource, similar to mmio_resource() function does for MMIO.

Change-Id: I3fdcabb14302537d6074bfd6a362690c06b66bb5
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31911
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>

src/device/device_util.c

diff --git a/src/device/device_util.c b/src/device/device_util.c
index 38207eb..5c4f911 100644
--- a/src/device/device_util.c
+++ b/src/device/device_util.c
@@ -801,6 +801,20 @@
 	resource->flags |= type;
 }
 
+void fixed_io_resource(struct device *dev, unsigned long index,
+			unsigned long base, unsigned long size)
+{
+	struct resource *resource;
+
+	resource = new_resource(dev, index);
+	resource->base = (resource_t)base;
+	resource->size = (resource_t)size;
+	resource->limit = resource->base + resource->size - 1;
+	resource->flags = IORESOURCE_IO | IORESOURCE_FIXED |
+		 IORESOURCE_STORED | IORESOURCE_ASSIGNED |
+		 IORESOURCE_RESERVE;
+}
+
 void mmconf_resource_init(struct resource *resource, resource_t base,
 	int buses)
 {

src/include/device/device.h

diff --git a/src/include/device/device.h b/src/include/device/device.h
index 7d7be73..39a4d56 100644
--- a/src/include/device/device.h
+++ b/src/include/device/device.h
@@ -234,6 +234,9 @@
 void pci_domain_read_resources(struct device *dev);
 void pci_domain_scan_bus(struct device *dev);
 
+void fixed_io_resource(struct device *dev, unsigned long index,
+		unsigned long base, unsigned long size);
+
 void fixed_mem_resource(struct device *dev, unsigned long index,
 		  unsigned long basek, unsigned long sizek, unsigned long type);
 
@@ -259,6 +262,9 @@
 #define mmio_resource(dev, idx, basek, sizek) \
 	fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_RESERVE)
 
+#define io_resource(dev, idx, base, size) \
+	fixed_io_resource(dev, idx, base, size)
+
 void tolm_test(void *gp, struct device *dev, struct resource *new);
 u32 find_pci_tolm(struct bus *bus);