[coreboot-gerrit] New patch to review for coreboot: MMCONF_SUPPORT_DEFAULT: Consolidate resource registration

Kyösti Mälkki (kyosti.malkki@gmail.com) gerrit at coreboot.org
Fri Dec 2 17:56:40 CET 2016


Kyösti Mälkki (kyosti.malkki at gmail.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/17695

-gerrit

commit cb5b44a8f29f2108f96c213173eff7160eac8477
Author: Kyösti Mälkki <kyosti.malkki at gmail.com>
Date:   Fri Dec 2 08:56:05 2016 +0200

    MMCONF_SUPPORT_DEFAULT: Consolidate resource registration
    
    Change-Id: Id727270bff9e0288747d178c00f3d747fe223b0f
    Signed-off-by: Kyösti Mälkki <kyosti.malkki at gmail.com>
---
 src/device/device_util.c                           | 42 +++++++++++++++++++
 src/include/device/device.h                        |  5 +++
 src/northbridge/amd/agesa/family10/northbridge.c   | 21 +++++-----
 src/northbridge/amd/agesa/family12/northbridge.c   | 13 +++---
 src/northbridge/amd/agesa/family14/northbridge.c   |  6 +--
 src/northbridge/amd/agesa/family15/northbridge.c   |  6 +--
 src/northbridge/amd/agesa/family15rl/northbridge.c |  6 +--
 src/northbridge/amd/agesa/family15tn/northbridge.c |  6 +--
 src/northbridge/amd/agesa/family16kb/northbridge.c |  6 +--
 src/northbridge/amd/amdfam10/northbridge.c         |  9 +----
 src/northbridge/amd/pi/00630F01/northbridge.c      | 11 +----
 src/northbridge/amd/pi/00660F01/northbridge.c      | 11 +----
 src/northbridge/amd/pi/00670F00/northbridge.c      | 11 +----
 src/northbridge/amd/pi/00730F01/northbridge.c      | 11 +----
 src/northbridge/intel/fsp_rangeley/Kconfig         |  4 ++
 src/northbridge/intel/fsp_rangeley/northbridge.c   | 11 -----
 src/northbridge/intel/fsp_sandybridge/Kconfig      |  4 ++
 .../intel/fsp_sandybridge/northbridge.c            | 47 ++++++----------------
 src/northbridge/intel/i3100/northbridge.c          | 10 +----
 src/northbridge/intel/i945/northbridge.c           | 26 +-----------
 src/northbridge/intel/nehalem/Kconfig              |  4 ++
 src/northbridge/intel/nehalem/bootblock.c          |  1 +
 src/northbridge/intel/sandybridge/Kconfig          |  4 ++
 src/northbridge/intel/sandybridge/northbridge.c    | 47 ++++++----------------
 src/northbridge/via/vx900/Kconfig                  |  4 ++
 src/northbridge/via/vx900/northbridge.c            |  5 +--
 src/soc/intel/fsp_baytrail/northcluster.c          | 12 ------
 src/soc/intel/sch/Kconfig                          |  4 ++
 src/soc/intel/sch/northbridge.c                    | 43 +++++---------------
 29 files changed, 140 insertions(+), 250 deletions(-)

diff --git a/src/device/device_util.c b/src/device/device_util.c
index 56afefd..c75095a 100644
--- a/src/device/device_util.c
+++ b/src/device/device_util.c
@@ -23,6 +23,7 @@
 #include <device/path.h>
 #include <device/pci_def.h>
 #include <device/resource.h>
+#include <lib.h>
 #include <string.h>
 
 /**
@@ -888,6 +889,47 @@ void fixed_mem_resource(device_t dev, unsigned long index,
 	resource->flags |= type;
 }
 
+int mmconf_resource_init(struct resource *resource, bool bar64,
+	uintptr_t base, int buses)
+{
+	resource->base = base;
+	resource->size = buses * MiB;
+	resource->align = log2(resource->size);
+	resource->gran = log2(resource->size);
+	resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
+		IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
+
+	/* 64-bit BAR or MSR. */
+	if (bar64 && IS_ENABLED(CONFIG_ARCH_RAMSTAGE_X86_64))
+		resource->limit = (1ULL << cpu_phys_address_size()) - 1;
+	else
+		resource->limit = (1ULL << 32) - 1;
+
+	printk(BIOS_DEBUG, "Adding PCIe enhanced config space BAR 0x%08lx-0x%08lx.\n",
+		     (unsigned long)(resource->base), (unsigned long)(resource->base + resource->size));
+	return 0;
+}
+
+void mmconf_resource32(struct device *dev, unsigned long index)
+{
+	struct resource *resource = new_resource(dev, index);
+	if (!resource)
+		return;
+
+	mmconf_resource_init(resource, 0, CONFIG_MMCONF_BASE_ADDRESS,
+		CONFIG_MMCONF_BUS_NUMBER);
+}
+
+void mmconf_resource64(struct device *dev, unsigned long index)
+{
+	struct resource *resource = new_resource(dev, index);
+	if (!resource)
+		return;
+
+	mmconf_resource_init(resource, 1, CONFIG_MMCONF_BASE_ADDRESS,
+		CONFIG_MMCONF_BUS_NUMBER);
+}
+
 void tolm_test(void *gp, struct device *dev, struct resource *new)
 {
 	struct resource **best_p = gp;
diff --git a/src/include/device/device.h b/src/include/device/device.h
index 95fabf4..36edb79 100644
--- a/src/include/device/device.h
+++ b/src/include/device/device.h
@@ -234,6 +234,11 @@ void pci_domain_scan_bus(struct device *dev);
 void fixed_mem_resource(device_t dev, unsigned long index,
 		  unsigned long basek, unsigned long sizek, unsigned long type);
 
+int mmconf_resource_init(struct resource *res, bool bar64, uintptr_t base,
+					int buses);
+void mmconf_resource32(struct device *dev, unsigned long index);
+void mmconf_resource64(struct device *dev, unsigned long index);
+
 void scan_smbus(device_t bus);
 void scan_static_bus(device_t bus);
 void scan_lpc_bus(device_t bus);
diff --git a/src/northbridge/amd/agesa/family10/northbridge.c b/src/northbridge/amd/agesa/family10/northbridge.c
index 2a54892..7408e50 100644
--- a/src/northbridge/amd/agesa/family10/northbridge.c
+++ b/src/northbridge/amd/agesa/family10/northbridge.c
@@ -424,6 +424,13 @@ static void amdfam10_read_resources(device_t dev)
 			amdfam10_link_read_bases(dev, nodeid, link->link_num);
 		}
 	}
+
+	/*
+	 * This MMCONF resource must be reserved in the PCI domain.
+	 * It is not honored by the coreboot resource allocator if it is in
+	 * the CPU_CLUSTER.
+	 */
+	mmconf_resource64(dev, 0xc0010058);
 }
 
 static void amdfam10_set_resource(device_t dev, struct resource *resource,
@@ -530,6 +537,11 @@ static void amdfam10_set_resources(device_t dev)
 			assign_resources(bus);
 		}
 	}
+
+	res = find_resource(dev, 0xc0010058);
+	if (res) {
+		report_resource_stored(dev, res, " <mmconfig>");
+	}
 }
 
 static void mcf0_control_init(struct device *dev)
@@ -1096,19 +1108,10 @@ static void cpu_bus_init(device_t dev)
 
 static void cpu_bus_read_resources(device_t dev)
 {
-	struct resource *resource = new_resource(dev, 0xc0010058);
-	resource->base = CONFIG_MMCONF_BASE_ADDRESS;
-	resource->size = CONFIG_MMCONF_BUS_NUMBER * 4096*256;
-	resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-		IORESOURCE_FIXED | IORESOURCE_STORED |  IORESOURCE_ASSIGNED;
 }
 
 static void cpu_bus_set_resources(device_t dev)
 {
-	struct resource *resource = find_resource(dev, 0xc0010058);
-	if (resource) {
-		report_resource_stored(dev, resource, " <mmconfig>");
-	}
 	pci_dev_set_resources(dev);
 }
 
diff --git a/src/northbridge/amd/agesa/family12/northbridge.c b/src/northbridge/amd/agesa/family12/northbridge.c
index 6f2896a..5ef7a90 100644
--- a/src/northbridge/amd/agesa/family12/northbridge.c
+++ b/src/northbridge/amd/agesa/family12/northbridge.c
@@ -300,6 +300,14 @@ static void read_resources(device_t dev)
 			amdfam12_link_read_bases(dev, nodeid, link->link_num);
 		}
 	}
+
+	/*
+	 * This MMCONF resource must be reserved in the PCI domain.
+	 * It is not honored by the coreboot resource allocator if it is in
+	 * the CPU_CLUSTER.
+	 */
+	mmconf_resource64(dev, 0xc0010058);
+
 	printk(BIOS_DEBUG, "Fam12h - northbridge.c - %s - End.\n",__func__);
 }
 
@@ -649,11 +657,6 @@ static void cpu_bus_read_resources(device_t dev)
 {
 	printk(BIOS_DEBUG, "\nFam12h - northbridge.c - %s - Start.\n",__func__);
 
-	struct resource *resource = new_resource(dev, 0xc0010058);
-	resource->base = CONFIG_MMCONF_BASE_ADDRESS;
-	resource->size = CONFIG_MMCONF_BUS_NUMBER * 4096*256;
-	resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-		IORESOURCE_FIXED | IORESOURCE_STORED |  IORESOURCE_ASSIGNED;
 	printk(BIOS_DEBUG, "Fam12h - northbridge.c - %s - End.\n",__func__);
 }
 
diff --git a/src/northbridge/amd/agesa/family14/northbridge.c b/src/northbridge/amd/agesa/family14/northbridge.c
index f92183e..08d1c49 100644
--- a/src/northbridge/amd/agesa/family14/northbridge.c
+++ b/src/northbridge/amd/agesa/family14/northbridge.c
@@ -302,11 +302,7 @@ static void nb_read_resources(device_t dev)
 	 * It is not honored by the coreboot resource allocator if it is in
 	 * the CPU_CLUSTER.
 	 */
-	struct resource *resource = new_resource(dev, 0xc0010058);
-	resource->base = CONFIG_MMCONF_BASE_ADDRESS;
-	resource->size = CONFIG_MMCONF_BUS_NUMBER * 4096 * 256;
-	resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-	    IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
+	mmconf_resource64(dev, 0xc0010058);
 }
 
 static void set_resource(device_t dev, struct resource *resource, u32 nodeid)
diff --git a/src/northbridge/amd/agesa/family15/northbridge.c b/src/northbridge/amd/agesa/family15/northbridge.c
index 5fc9833..c5e2921 100644
--- a/src/northbridge/amd/agesa/family15/northbridge.c
+++ b/src/northbridge/amd/agesa/family15/northbridge.c
@@ -326,11 +326,7 @@ static void nb_read_resources(device_t dev)
 	 * It is not honored by the coreboot resource allocator if it is in
 	 * the CPU_CLUSTER.
 	 */
-	struct resource *resource = new_resource(dev, 0xc0010058);
-	resource->base = CONFIG_MMCONF_BASE_ADDRESS;
-	resource->size = CONFIG_MMCONF_BUS_NUMBER * 4096 * 256;
-	resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-	    IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
+	mmconf_resource64(dev, 0xc0010058);
 }
 
 static void set_resource(device_t dev, struct resource *resource, u32 nodeid)
diff --git a/src/northbridge/amd/agesa/family15rl/northbridge.c b/src/northbridge/amd/agesa/family15rl/northbridge.c
index b5f7690..2417933 100644
--- a/src/northbridge/amd/agesa/family15rl/northbridge.c
+++ b/src/northbridge/amd/agesa/family15rl/northbridge.c
@@ -326,11 +326,7 @@ static void read_resources(struct device *dev)
 	 * It is not honored by the coreboot resource allocator if it is in
 	 * the CPU_CLUSTER.
 	 */
-	struct resource *resource = new_resource(dev, 0xc0010058);
-	resource->base = CONFIG_MMCONF_BASE_ADDRESS;
-	resource->size = CONFIG_MMCONF_BUS_NUMBER * 4096 * 256;
-	resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-	    IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
+	mmconf_resource64(dev, 0xc0010058);
 }
 
 static void set_resource(struct device *dev, struct resource *resource, u32 nodeid)
diff --git a/src/northbridge/amd/agesa/family15tn/northbridge.c b/src/northbridge/amd/agesa/family15tn/northbridge.c
index 2353126..7862e60 100644
--- a/src/northbridge/amd/agesa/family15tn/northbridge.c
+++ b/src/northbridge/amd/agesa/family15tn/northbridge.c
@@ -325,11 +325,7 @@ static void nb_read_resources(device_t dev)
 	 * It is not honored by the coreboot resource allocator if it is in
 	 * the CPU_CLUSTER.
 	 */
-	struct resource *resource = new_resource(dev, 0xc0010058);
-	resource->base = CONFIG_MMCONF_BASE_ADDRESS;
-	resource->size = CONFIG_MMCONF_BUS_NUMBER * 4096 * 256;
-	resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-	    IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
+	mmconf_resource64(dev, 0xc0010058);
 }
 
 static void set_resource(device_t dev, struct resource *resource, u32 nodeid)
diff --git a/src/northbridge/amd/agesa/family16kb/northbridge.c b/src/northbridge/amd/agesa/family16kb/northbridge.c
index 63e1c2e..23057a9 100644
--- a/src/northbridge/amd/agesa/family16kb/northbridge.c
+++ b/src/northbridge/amd/agesa/family16kb/northbridge.c
@@ -325,11 +325,7 @@ static void read_resources(device_t dev)
 	 * It is not honored by the coreboot resource allocator if it is in
 	 * the APIC_CLUSTER.
 	 */
-	struct resource *resource = new_resource(dev, 0xc0010058);
-	resource->base = CONFIG_MMCONF_BASE_ADDRESS;
-	resource->size = CONFIG_MMCONF_BUS_NUMBER * 4096 * 256;
-	resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-		IORESOURCE_FIXED | IORESOURCE_STORED |  IORESOURCE_ASSIGNED;
+	mmconf_resource64(dev, 0xc0010058);
 }
 
 static void set_resource(device_t dev, struct resource *resource, u32 nodeid)
diff --git a/src/northbridge/amd/amdfam10/northbridge.c b/src/northbridge/amd/amdfam10/northbridge.c
index 605db3a..4284e1e 100644
--- a/src/northbridge/amd/amdfam10/northbridge.c
+++ b/src/northbridge/amd/amdfam10/northbridge.c
@@ -741,14 +741,7 @@ static void amdfam10_domain_read_resources(device_t dev)
 	pci_domain_read_resources(dev);
 
 	/* We have MMCONF_SUPPORT_DEFAULT, create the resource window. */
-	struct resource *res = new_resource(dev, 0xc0010058);
-	res->base = CONFIG_MMCONF_BASE_ADDRESS;
-	res->size = CONFIG_MMCONF_BUS_NUMBER * 1024 * 1024;	/* Each bus needs 1M */
-	res->align = log2(res->size);
-	res->gran = log2(res->size);
-	res->limit = 0xffffffffffffffffULL;			/* 64-bit location allowed */
-	res->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-		IORESOURCE_FIXED | IORESOURCE_STORED |  IORESOURCE_ASSIGNED;
+	mmconf_resource64(dev, 0xc0010058);
 
 	/* Reserve lower DRAM region to force PCI MMIO region to correct location above 0xefffffff */
 	ram_resource(dev, 7, 0, rdmsr(TOP_MEM).lo >> 10);
diff --git a/src/northbridge/amd/pi/00630F01/northbridge.c b/src/northbridge/amd/pi/00630F01/northbridge.c
index 4872db0..1695808 100644
--- a/src/northbridge/amd/pi/00630F01/northbridge.c
+++ b/src/northbridge/amd/pi/00630F01/northbridge.c
@@ -309,15 +309,6 @@ static void amdfam15_link_read_bases(device_t dev, u32 nodeid, u32 link)
 
 }
 
-static void enable_mmconf_resource(device_t dev)
-{
-	struct resource *resource = new_resource(dev, 0xc0010058);
-	resource->base = CONFIG_MMCONF_BASE_ADDRESS;
-	resource->size = CONFIG_MMCONF_BUS_NUMBER * 4096 * 256;
-	resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-		IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
-}
-
 static void read_resources(device_t dev)
 {
 	u32 nodeid;
@@ -335,7 +326,7 @@ static void read_resources(device_t dev)
 	 * It is not honored by the coreboot resource allocator if it is in
 	 * the CPU_CLUSTER.
 	 */
-	enable_mmconf_resource(dev);
+	mmconf_resource64(dev, 0xc0010058);
 }
 
 static void set_resource(device_t dev, struct resource *resource, u32 nodeid)
diff --git a/src/northbridge/amd/pi/00660F01/northbridge.c b/src/northbridge/amd/pi/00660F01/northbridge.c
index 4c1254c..9f6ae1f 100644
--- a/src/northbridge/amd/pi/00660F01/northbridge.c
+++ b/src/northbridge/amd/pi/00660F01/northbridge.c
@@ -304,15 +304,6 @@ static void amdfam15_link_read_bases(device_t dev, u32 nodeid, u32 link)
 
 }
 
-static void enable_mmconf_resource(device_t dev)
-{
-	struct resource *resource = new_resource(dev, 0xc0010058);
-	resource->base = CONFIG_MMCONF_BASE_ADDRESS;
-	resource->size = CONFIG_MMCONF_BUS_NUMBER * 4096 * 256;
-	resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-		IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
-}
-
 static void read_resources(device_t dev)
 {
 	u32 nodeid;
@@ -330,7 +321,7 @@ static void read_resources(device_t dev)
 	 * It is not honored by the coreboot resource allocator if it is in
 	 * the CPU_CLUSTER.
 	 */
-	enable_mmconf_resource(dev);
+	mmconf_resource64(dev, 0xc0010058);
 }
 
 static void set_resource(device_t dev, struct resource *resource, u32 nodeid)
diff --git a/src/northbridge/amd/pi/00670F00/northbridge.c b/src/northbridge/amd/pi/00670F00/northbridge.c
index 9a39410..521a32c 100644
--- a/src/northbridge/amd/pi/00670F00/northbridge.c
+++ b/src/northbridge/amd/pi/00670F00/northbridge.c
@@ -304,15 +304,6 @@ static void amdfam15_link_read_bases(device_t dev, u32 nodeid, u32 link)
 
 }
 
-static void enable_mmconf_resource(device_t dev)
-{
-	struct resource *resource = new_resource(dev, 0xc0010058);
-	resource->base = CONFIG_MMCONF_BASE_ADDRESS;
-	resource->size = CONFIG_MMCONF_BUS_NUMBER * 4096 * 256;
-	resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-		IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
-}
-
 static void read_resources(device_t dev)
 {
 	u32 nodeid;
@@ -330,7 +321,7 @@ static void read_resources(device_t dev)
 	 * It is not honored by the coreboot resource allocator if it is in
 	 * the CPU_CLUSTER.
 	 */
-	enable_mmconf_resource(dev);
+	mmconf_resource64(dev, 0xc0010058);
 }
 
 static void set_resource(device_t dev, struct resource *resource, u32 nodeid)
diff --git a/src/northbridge/amd/pi/00730F01/northbridge.c b/src/northbridge/amd/pi/00730F01/northbridge.c
index 44f91e2..d97d875 100644
--- a/src/northbridge/amd/pi/00730F01/northbridge.c
+++ b/src/northbridge/amd/pi/00730F01/northbridge.c
@@ -312,15 +312,6 @@ static void amdfam16_link_read_bases(device_t dev, u32 nodeid, u32 link)
 
 }
 
-static void enable_mmconf_resource(device_t dev)
-{
-	struct resource *resource = new_resource(dev, 0xc0010058);
-	resource->base = CONFIG_MMCONF_BASE_ADDRESS;
-	resource->size = CONFIG_MMCONF_BUS_NUMBER * 4096 * 256;
-	resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-		IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
-}
-
 static void read_resources(device_t dev)
 {
 	u32 nodeid;
@@ -338,7 +329,7 @@ static void read_resources(device_t dev)
 	 * It is not honored by the coreboot resource allocator if it is in
 	 * the CPU_CLUSTER.
 	 */
-	enable_mmconf_resource(dev);
+	mmconf_resource64(dev, 0xc0010058);
 }
 
 static void set_resource(device_t dev, struct resource *resource, u32 nodeid)
diff --git a/src/northbridge/intel/fsp_rangeley/Kconfig b/src/northbridge/intel/fsp_rangeley/Kconfig
index bc735264..fdb5566 100644
--- a/src/northbridge/intel/fsp_rangeley/Kconfig
+++ b/src/northbridge/intel/fsp_rangeley/Kconfig
@@ -24,6 +24,10 @@ config MMCONF_BASE_ADDRESS
 	hex
 	default 0xe0000000
 
+config MMCONF_BUS_NUMBER
+	int
+	default 256
+
 choice
 	prompt "Set TSEG Size"
 	default SET_TSEG_1MB if SET_DEFAULT_TSEG_1MB
diff --git a/src/northbridge/intel/fsp_rangeley/northbridge.c b/src/northbridge/intel/fsp_rangeley/northbridge.c
index f01333e..65b794e 100644
--- a/src/northbridge/intel/fsp_rangeley/northbridge.c
+++ b/src/northbridge/intel/fsp_rangeley/northbridge.c
@@ -84,17 +84,6 @@ static int get_pcie_bar(u32 *base, u32 *len)
 static int add_fixed_resources(struct device *dev, int index)
 {
 	struct resource *resource;
-	u32 pcie_config_base, pcie_config_size;
-
-	if (get_pcie_bar(&pcie_config_base, &pcie_config_size)) {
-		printk(BIOS_DEBUG, "Adding PCIe config bar base=0x%08x "
-		       "size=0x%x\n", pcie_config_base, pcie_config_size);
-		resource = new_resource(dev, index++);
-		resource->base = (resource_t) pcie_config_base;
-		resource->size = (resource_t) pcie_config_size;
-		resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-		    IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
-	}
 
 	resource = new_resource(dev, index++); /* Local APIC */
 	resource->base = LAPIC_DEFAULT_BASE;
diff --git a/src/northbridge/intel/fsp_sandybridge/Kconfig b/src/northbridge/intel/fsp_sandybridge/Kconfig
index 89326b4..cfcfc34 100644
--- a/src/northbridge/intel/fsp_sandybridge/Kconfig
+++ b/src/northbridge/intel/fsp_sandybridge/Kconfig
@@ -30,6 +30,10 @@ config BOOTBLOCK_NORTHBRIDGE_INIT
 	string
 	default "northbridge/intel/fsp_sandybridge/bootblock.c"
 
+config MMCONF_BUS_NUMBER
+	int
+	default 64
+
 config VGA_BIOS_ID
 	string
 	default "8086,0106"
diff --git a/src/northbridge/intel/fsp_sandybridge/northbridge.c b/src/northbridge/intel/fsp_sandybridge/northbridge.c
index 50615b5..877d85f 100644
--- a/src/northbridge/intel/fsp_sandybridge/northbridge.c
+++ b/src/northbridge/intel/fsp_sandybridge/northbridge.c
@@ -62,18 +62,18 @@ int bridge_silicon_revision(void)
 static const int legacy_hole_base_k = 0xa0000 / 1024;
 static const int legacy_hole_size_k = 384;
 
-static int get_pcie_bar(u32 *base, u32 *len)
+static int get_pcie_bar(u32 *base)
 {
 	device_t dev;
 	u32 pciexbar_reg;
 
 	*base = 0;
-	*len = 0;
 
 	dev = dev_find_slot(0, PCI_DEVFN(0, 0));
 	if (!dev)
 		return 0;
 
+	/* FIXME: 64bit BAR here. */
 	pciexbar_reg = pci_read_config32(dev, PCIEXBAR);
 
 	if (!(pciexbar_reg & (1 << 0)))
@@ -82,16 +82,13 @@ static int get_pcie_bar(u32 *base, u32 *len)
 	switch ((pciexbar_reg >> 1) & 3) {
 	case 0: // 256MB
 		*base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28));
-		*len = 256 * 1024 * 1024;
-		return 1;
+		return 256;
 	case 1: // 128M
 		*base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27));
-		*len = 128 * 1024 * 1024;
-		return 1;
+		return 128;
 	case 2: // 64M
 		*base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)|(1 << 26));
-		*len = 64 * 1024 * 1024;
-		return 1;
+		return 64;
 	}
 
 	return 0;
@@ -99,21 +96,8 @@ static int get_pcie_bar(u32 *base, u32 *len)
 
 static void add_fixed_resources(struct device *dev, int index)
 {
-	struct resource *resource;
-	u32 pcie_config_base, pcie_config_size;
-
 	mmio_resource(dev, index++, uma_memory_base >> 10, uma_memory_size >> 10);
 
-	if (get_pcie_bar(&pcie_config_base, &pcie_config_size)) {
-		printk(BIOS_DEBUG, "Adding PCIe config bar base=0x%08x "
-		       "size=0x%x\n", pcie_config_base, pcie_config_size);
-		resource = new_resource(dev, index++);
-		resource->base = (resource_t) pcie_config_base;
-		resource->size = (resource_t) pcie_config_size;
-		resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-		    IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
-	}
-
 	mmio_resource(dev, index++, legacy_hole_base_k, legacy_hole_size_k);
 }
 
@@ -256,24 +240,17 @@ static struct device_operations pci_domain_ops = {
 
 static void mc_read_resources(device_t dev)
 {
-	struct resource *resource;
+	u32 pcie_config_base;
+	int buses;
 
 	pci_dev_read_resources(dev);
 
-	/* So, this is one of the big mysteries in the coreboot resource
-	 * allocator. This resource should make sure that the address space
-	 * of the PCIe memory mapped config space bar. But it does not.
-	 */
-
 	/* We use 0xcf as an unused index for our PCIe bar so that we find it again */
-	resource = new_resource(dev, 0xcf);
-	resource->base = DEFAULT_PCIEXBAR;
-	resource->size = 64 * 1024 * 1024;	/* 64MB hard coded PCIe config space */
-	resource->flags =
-	    IORESOURCE_MEM | IORESOURCE_FIXED | IORESOURCE_STORED |
-	    IORESOURCE_ASSIGNED;
-	printk(BIOS_DEBUG, "Adding PCIe enhanced config space BAR 0x%08lx-0x%08lx.\n",
-		     (unsigned long)(resource->base), (unsigned long)(resource->base + resource->size));
+	buses = get_pcie_bar(&pcie_config_base);
+	if (buses) {
+		struct resource *resource = new_resource(dev, 0xcf);
+		mmconf_resource_init(resource, 0, pcie_config_base, buses);
+	}
 }
 
 static void mc_set_resources(device_t dev)
diff --git a/src/northbridge/intel/i3100/northbridge.c b/src/northbridge/intel/i3100/northbridge.c
index 8025ac3..65107de 100644
--- a/src/northbridge/intel/i3100/northbridge.c
+++ b/src/northbridge/intel/i3100/northbridge.c
@@ -32,9 +32,6 @@
 #include <arch/acpi.h>
 
 
-static u32 max_bus;
-
-
 static void pci_domain_set_resources(device_t dev)
 {
 	device_t mc_dev;
@@ -139,14 +136,9 @@ static struct device_operations pci_domain_ops = {
 
 static void mc_read_resources(device_t dev)
 {
-	struct resource *resource;
-
 	pci_dev_read_resources(dev);
 
-	resource = new_resource(dev, 0xcf);
-	resource->base = 0xe0000000;
-	resource->size = max_bus * 4096*256;
-	resource->flags = IORESOURCE_MEM | IORESOURCE_FIXED | IORESOURCE_STORED |  IORESOURCE_ASSIGNED;
+	mmconf_resource32(dev, 0xcf);
 }
 
 static void mc_set_resources(device_t dev)
diff --git a/src/northbridge/intel/i945/northbridge.c b/src/northbridge/intel/i945/northbridge.c
index 5d18591..26d89d0 100644
--- a/src/northbridge/intel/i945/northbridge.c
+++ b/src/northbridge/intel/i945/northbridge.c
@@ -62,21 +62,6 @@ static int get_pcie_bar(u32 *base, u32 *len)
 	return 0;
 }
 
-static void add_fixed_resources(struct device *dev, int index)
-{
-	struct resource *resource;
-	u32 pcie_config_base, pcie_config_size;
-
-	if (get_pcie_bar(&pcie_config_base, &pcie_config_size)) {
-		printk(BIOS_DEBUG, "Adding PCIe config bar\n");
-		resource = new_resource(dev, index++);
-		resource->base = (resource_t) pcie_config_base;
-		resource->size = (resource_t) pcie_config_size;
-		resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-		    IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
-	}
-}
-
 static void pci_domain_set_resources(device_t dev)
 {
 	uint32_t pci_tolm;
@@ -153,8 +138,6 @@ static void pci_domain_set_resources(device_t dev)
 	uma_resource(dev, 5, uma_memory_base >> 10, uma_memory_size >> 10);
 	mmio_resource(dev, 6, tseg_memory_base >> 10, tseg_memory_size >> 10);
 
-	add_fixed_resources(dev, 7);
-
 	assign_resources(dev->link_list);
 }
 
@@ -178,14 +161,7 @@ static void mc_read_resources(device_t dev)
 	pci_dev_read_resources(dev);
 
 	/* We use 0xcf as an unused index for our PCIe bar so that we find it again */
-	resource = new_resource(dev, 0xcf);
-	resource->base = DEFAULT_PCIEXBAR;
-	resource->size = 64 * 1024 * 1024;	/* 64MB hard coded PCIe config space */
-	resource->flags =
-	    IORESOURCE_MEM | IORESOURCE_FIXED | IORESOURCE_STORED |
-	    IORESOURCE_ASSIGNED;
-	printk(BIOS_DEBUG, "Adding PCIe enhanced config space BAR 0x%08lx-0x%08lx.\n",
-		     (unsigned long)(resource->base), (unsigned long)(resource->base + resource->size));
+	mmconf_resource32(dev, 0xcf);
 }
 
 static void mc_set_resources(device_t dev)
diff --git a/src/northbridge/intel/nehalem/Kconfig b/src/northbridge/intel/nehalem/Kconfig
index 4dada50..f3a0b86 100644
--- a/src/northbridge/intel/nehalem/Kconfig
+++ b/src/northbridge/intel/nehalem/Kconfig
@@ -24,6 +24,10 @@ config NORTHBRIDGE_INTEL_NEHALEM
 
 if NORTHBRIDGE_INTEL_NEHALEM
 
+config MMCONF_BUS_NUMBER
+	int
+	default 64
+
 config CBFS_SIZE
 	hex
 	default 0x100000
diff --git a/src/northbridge/intel/nehalem/bootblock.c b/src/northbridge/intel/nehalem/bootblock.c
index 8382205..1ffad12 100644
--- a/src/northbridge/intel/nehalem/bootblock.c
+++ b/src/northbridge/intel/nehalem/bootblock.c
@@ -2,6 +2,7 @@
 
 static void bootblock_northbridge_init(void)
 {
+	/* FIXME: Is the allocation for 64 or 256 bus. */
 	pci_io_write_config32(PCI_DEV(0xff, 0x00, 1), 0x50, DEFAULT_PCIEXBAR | 1);
 	pci_io_write_config32(PCI_DEV(0xff, 0x00, 1), 0x54, 0);
 }
diff --git a/src/northbridge/intel/sandybridge/Kconfig b/src/northbridge/intel/sandybridge/Kconfig
index c78b397..15f2aab 100644
--- a/src/northbridge/intel/sandybridge/Kconfig
+++ b/src/northbridge/intel/sandybridge/Kconfig
@@ -71,6 +71,10 @@ config BOOTBLOCK_NORTHBRIDGE_INIT
 	string
 	default "northbridge/intel/sandybridge/bootblock.c"
 
+config MMCONF_BUS_NUMBER
+	int
+	default 64
+
 if USE_NATIVE_RAMINIT
 
 config DCACHE_RAM_BASE
diff --git a/src/northbridge/intel/sandybridge/northbridge.c b/src/northbridge/intel/sandybridge/northbridge.c
index fe1a07c..a86672b 100644
--- a/src/northbridge/intel/sandybridge/northbridge.c
+++ b/src/northbridge/intel/sandybridge/northbridge.c
@@ -61,18 +61,18 @@ int bridge_silicon_revision(void)
 static const int legacy_hole_base_k = 0xa0000 / 1024;
 static const int legacy_hole_size_k = 384;
 
-static int get_pcie_bar(u32 *base, u32 *len)
+static int get_pcie_bar(u32 *base)
 {
 	device_t dev;
 	u32 pciexbar_reg;
 
 	*base = 0;
-	*len = 0;
 
 	dev = dev_find_slot(0, PCI_DEVFN(0, 0));
 	if (!dev)
 		return 0;
 
+	/* FIXME: 64bit BAR here. */
 	pciexbar_reg = pci_read_config32(dev, PCIEXBAR);
 
 	if (!(pciexbar_reg & (1 << 0)))
@@ -81,16 +81,13 @@ static int get_pcie_bar(u32 *base, u32 *len)
 	switch ((pciexbar_reg >> 1) & 3) {
 	case 0: // 256MB
 		*base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28));
-		*len = 256 * 1024 * 1024;
-		return 1;
+		return 256;
 	case 1: // 128M
 		*base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27));
-		*len = 128 * 1024 * 1024;
-		return 1;
+		return 128;
 	case 2: // 64M
 		*base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)|(1 << 26));
-		*len = 64 * 1024 * 1024;
-		return 1;
+		return 64;
 	}
 
 	return 0;
@@ -98,21 +95,8 @@ static int get_pcie_bar(u32 *base, u32 *len)
 
 static void add_fixed_resources(struct device *dev, int index)
 {
-	struct resource *resource;
-	u32 pcie_config_base, pcie_config_size;
-
 	mmio_resource(dev, index++, uma_memory_base >> 10, uma_memory_size >> 10);
 
-	if (get_pcie_bar(&pcie_config_base, &pcie_config_size)) {
-		printk(BIOS_DEBUG, "Adding PCIe config bar base=0x%08x "
-		       "size=0x%x\n", pcie_config_base, pcie_config_size);
-		resource = new_resource(dev, index++);
-		resource->base = (resource_t) pcie_config_base;
-		resource->size = (resource_t) pcie_config_size;
-		resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-		    IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
-	}
-
 	mmio_resource(dev, index++, legacy_hole_base_k,
 			(0xc0000 >> 10) - legacy_hole_base_k);
 	reserved_ram_resource(dev, index++, 0xc0000 >> 10,
@@ -276,24 +260,17 @@ static struct device_operations pci_domain_ops = {
 
 static void mc_read_resources(device_t dev)
 {
-	struct resource *resource;
+	u32 pcie_config_base;
+	int buses;
 
 	pci_dev_read_resources(dev);
 
-	/* So, this is one of the big mysteries in the coreboot resource
-	 * allocator. This resource should make sure that the address space
-	 * of the PCIe memory mapped config space bar. But it does not.
-	 */
-
 	/* We use 0xcf as an unused index for our PCIe bar so that we find it again */
-	resource = new_resource(dev, 0xcf);
-	resource->base = DEFAULT_PCIEXBAR;
-	resource->size = 64 * 1024 * 1024;	/* 64MB hard coded PCIe config space */
-	resource->flags =
-	    IORESOURCE_MEM | IORESOURCE_FIXED | IORESOURCE_STORED |
-	    IORESOURCE_ASSIGNED;
-	printk(BIOS_DEBUG, "Adding PCIe enhanced config space BAR 0x%08lx-0x%08lx.\n",
-		     (unsigned long)(resource->base), (unsigned long)(resource->base + resource->size));
+	buses = get_pcie_bar(&pcie_config_base);
+	if (buses) {
+		struct resource *resource = new_resource(dev, 0xcf);
+		mmconf_resource_init(resource, 0, pcie_config_base, buses);
+	}
 }
 
 static void mc_set_resources(device_t dev)
diff --git a/src/northbridge/via/vx900/Kconfig b/src/northbridge/via/vx900/Kconfig
index 73d40ad..4b1e6cc 100644
--- a/src/northbridge/via/vx900/Kconfig
+++ b/src/northbridge/via/vx900/Kconfig
@@ -33,6 +33,10 @@ config MMCONF_BASE_ADDRESS
 	hex
 	default 0xe0000000
 
+config MMCONF_BUS_NUMBER
+	int
+	default 256
+
 config VGA_BIOS_ID
 	string
 	default "1106,7122"
diff --git a/src/northbridge/via/vx900/northbridge.c b/src/northbridge/via/vx900/northbridge.c
index a4a8ece..ffeaada0 100644
--- a/src/northbridge/via/vx900/northbridge.c
+++ b/src/northbridge/via/vx900/northbridge.c
@@ -297,10 +297,7 @@ static void vx900_read_resources(device_t dev)
 	/* Now do the same for our MMCONF
 	 * We always run with MMCONF enabled. We need to access the extended
 	 * config space when configuring PCI-Express links */
-	res = new_resource(dev, idx++);
-	res->size = 256 * MiB;
-	res->base = CONFIG_MMCONF_BASE_ADDRESS;
-	res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+	mmconf_resource32(dev, idx++);
 
 	pci_domain_read_resources(dev);
 }
diff --git a/src/soc/intel/fsp_baytrail/northcluster.c b/src/soc/intel/fsp_baytrail/northcluster.c
index bf1a388..c60ea35 100644
--- a/src/soc/intel/fsp_baytrail/northcluster.c
+++ b/src/soc/intel/fsp_baytrail/northcluster.c
@@ -113,18 +113,6 @@ static int get_pcie_bar(u32 *base, u32 *len)
 static int add_fixed_resources(struct device *dev, int index)
 {
 	struct resource *resource;
-	u32 pcie_config_base, pcie_config_size;
-
-
-	if (get_pcie_bar(&pcie_config_base, &pcie_config_size)) {
-		printk(BIOS_DEBUG, "Adding PCIe config bar base=0x%08x "
-		       "size=0x%x\n", pcie_config_base, pcie_config_size);
-		resource = new_resource(dev, index++);
-		resource->base = (resource_t) pcie_config_base;
-		resource->size = (resource_t) pcie_config_size;
-		resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-		    IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
-	}
 
 	resource = new_resource(dev, index++); /* Local APIC */
 	resource->base = LAPIC_DEFAULT_BASE;
diff --git a/src/soc/intel/sch/Kconfig b/src/soc/intel/sch/Kconfig
index 2456df7..abdee44 100644
--- a/src/soc/intel/sch/Kconfig
+++ b/src/soc/intel/sch/Kconfig
@@ -28,6 +28,10 @@ config BOOTBLOCK_NORTHBRIDGE_INIT
 	string
 	default "soc/intel/sch/bootblock.c"
 
+config MMCONF_BUS_NUMBER
+	int
+	default 256
+
 config VGA_BIOS_ID
 	string
 	default "8086,8108"
diff --git a/src/soc/intel/sch/northbridge.c b/src/soc/intel/sch/northbridge.c
index 390a0bc..07b17c0 100644
--- a/src/soc/intel/sch/northbridge.c
+++ b/src/soc/intel/sch/northbridge.c
@@ -27,7 +27,7 @@
 #include <arch/acpi.h>
 #include "sch.h"
 
-static int get_pcie_bar(u32 *base, u32 *len)
+static int get_pcie_bar(u32 *base)
 {
 	device_t dev;
 	u32 pciexbar_reg;
@@ -50,18 +50,15 @@ static int get_pcie_bar(u32 *base, u32 *len)
 	case 0:	/* 256MB */
 		*base = pciexbar_reg & ((1 << 31) | (1 << 30) | (1 << 29) |
 					(1 << 28));
-		*len = 256 * 1024 * 1024;
-		return 1;
+		return 256;
 	case 1: /* 128M */
 		*base = pciexbar_reg & ((1 << 31) | (1 << 30) | (1 << 29) |
 					(1 << 28) | (1 << 27));
-		*len = 128 * 1024 * 1024;
-		return 1;
+		return 128;
 	case 2: /* 64M */
 		*base = pciexbar_reg & ((1 << 31) | (1 << 30) | (1 << 29) |
 					(1 << 28) | (1 << 27) | (1 << 26));
-		*len = 64 * 1024 * 1024;
-		return 1;
+		return 64;
 	}
 
 	return 0;
@@ -70,16 +67,6 @@ static int get_pcie_bar(u32 *base, u32 *len)
 static void add_fixed_resources(struct device *dev, int index)
 {
 	struct resource *resource;
-	u32 pcie_config_base, pcie_config_size;
-
-	if (get_pcie_bar(&pcie_config_base, &pcie_config_size)) {
-		printk(BIOS_DEBUG, "Adding PCIe config bar\n");
-		resource = new_resource(dev, index++);
-		resource->base = (resource_t) pcie_config_base;
-		resource->size = (resource_t) pcie_config_size;
-		resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
-		    IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
-	}
 
 	printk(BIOS_DEBUG, "Adding CMC shadow area\n");
 	resource = new_resource(dev, index++);
@@ -198,28 +185,20 @@ static struct device_operations pci_domain_ops = {
 
 static void mc_read_resources(device_t dev)
 {
-	struct resource *resource;
+	u32 pcie_config_base;
+	int buses;
 
 	pci_dev_read_resources(dev);
 
 	/*
-	 * So, this is one of the big mysteries in the coreboot resource
-	 * allocator. This resource should make sure that the address space
-	 * of the PCIe memory mapped config space bar. But it does not.
-	 */
-
-	/*
 	 * We use 0xcf as an unused index for our PCIe bar so that we find
 	 * it again.
 	 */
-	resource = new_resource(dev, 0xcf);
-	resource->flags = IORESOURCE_MEM | IORESOURCE_FIXED |
-			  IORESOURCE_STORED | IORESOURCE_ASSIGNED;
-	get_pcie_bar((u32 *)&resource->base, (u32 *)&resource->size);
-	printk(BIOS_DEBUG,
-	       "Adding PCIe enhanced config space BAR 0x%08lx-0x%08lx.\n",
-	       (unsigned long)(resource->base),
-	       (unsigned long)(resource->base + resource->size));
+	buses = get_pcie_bar(&pcie_config_base);
+	if (buses) {
+		struct resource *resource = new_resource(dev, 0xcf);
+		mmconf_resource_init(resource, 0, pcie_config_base, buses);
+	}
 }
 
 static void mc_set_resources(device_t dev)



More information about the coreboot-gerrit mailing list