HyperTransport: Use subordinate property to track chain enumeration
For amdfam10, (ht_c_index > 3) never evaluates true as the code already has a return for this case above. Change-Id: Ie90941671e1b2b4f42e2b1b0641ca59334fcf0f1 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/8688 Tested-by: build bot (Jenkins) Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Kyösti Mälkki
parent
b39714e5ee
commit
6ccf119932
|
|
@ -501,8 +501,8 @@ static unsigned int hypertransport_scan_chain_x(struct bus *bus,
|
|||
ht_unitid_base, offset_unitid);
|
||||
|
||||
/* Now that nothing is overlapping it is safe to scan the children. */
|
||||
max = pci_scan_bus(bus, 0x00, ((next_unitid - 1) << 3) | 7, max);
|
||||
return max;
|
||||
bus->subordinate = pci_scan_bus(bus, 0x00, ((next_unitid - 1) << 3) | 7, bus->secondary);
|
||||
return bus->subordinate;
|
||||
}
|
||||
|
||||
unsigned int ht_scan_bridge(struct device *dev, unsigned int max)
|
||||
|
|
|
|||
|
|
@ -554,13 +554,14 @@ static void mcf0_control_init(struct device *dev)
|
|||
{
|
||||
}
|
||||
|
||||
static unsigned amdfam10_scan_chains(device_t dev, unsigned max)
|
||||
static unsigned amdfam10_scan_chains(device_t dev, unsigned unused)
|
||||
{
|
||||
unsigned nodeid;
|
||||
struct bus *link;
|
||||
unsigned sblink = sysconf.sblk;
|
||||
device_t io_hub = NULL;
|
||||
u32 next_unitid = 0xff;
|
||||
unsigned int max = dev->bus->subordinate;
|
||||
|
||||
nodeid = amdfam10_nodeid(dev);
|
||||
if (nodeid == 0) {
|
||||
|
|
@ -576,7 +577,9 @@ static unsigned amdfam10_scan_chains(device_t dev, unsigned max)
|
|||
}
|
||||
}
|
||||
|
||||
return max;
|
||||
dev->bus->subordinate = max;
|
||||
|
||||
return unused;
|
||||
}
|
||||
|
||||
static struct device_operations northbridge_operations = {
|
||||
|
|
@ -913,7 +916,9 @@ static u32 amdfam10_domain_scan_bus(device_t dev, u32 max)
|
|||
}
|
||||
|
||||
for (link = dev->link_list; link; link = link->next) {
|
||||
max = pci_scan_bus(link, PCI_DEVFN(CONFIG_CDB, 0), 0xff, max);
|
||||
link->secondary = dev->bus->subordinate;
|
||||
link->subordinate = pci_scan_bus(link, PCI_DEVFN(CONFIG_CDB, 0), 0xff, link->secondary);
|
||||
dev->bus->subordinate = link->subordinate;
|
||||
}
|
||||
|
||||
/* Tune the hypertransport transaction for best performance.
|
||||
|
|
|
|||
|
|
@ -459,12 +459,14 @@ static void nb_set_resources(device_t dev)
|
|||
}
|
||||
}
|
||||
|
||||
static unsigned scan_chains(device_t dev, unsigned max)
|
||||
static unsigned scan_chains(device_t dev, unsigned unused)
|
||||
{
|
||||
unsigned nodeid;
|
||||
struct bus *link;
|
||||
device_t io_hub = NULL;
|
||||
u32 next_unitid = 0x18;
|
||||
unsigned int max = dev->bus->subordinate;
|
||||
|
||||
nodeid = amdfam15_nodeid(dev);
|
||||
if (nodeid == 0) {
|
||||
for (link = dev->link_list; link; link = link->next) {
|
||||
|
|
@ -479,7 +481,10 @@ static unsigned scan_chains(device_t dev, unsigned max)
|
|||
}
|
||||
}
|
||||
}
|
||||
return max;
|
||||
|
||||
dev->bus->subordinate = max;
|
||||
|
||||
return unused;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -948,8 +953,9 @@ static void domain_set_resources(device_t dev)
|
|||
/* all family15's pci devices are under 0x18.0, so we search from dev 0x18 fun 0 */
|
||||
static unsigned int f15_pci_domain_scan_bus(device_t dev, unsigned int max)
|
||||
{
|
||||
max = pci_scan_bus(dev->link_list, PCI_DEVFN(0x18, 0), 0xff, max);
|
||||
return max;
|
||||
struct bus *link = dev->link_list;
|
||||
link->subordinate = pci_scan_bus(link, PCI_DEVFN(0x18, 0), 0xff, link->secondary);
|
||||
return link->subordinate;
|
||||
}
|
||||
|
||||
static struct device_operations pci_domain_ops = {
|
||||
|
|
|
|||
|
|
@ -227,7 +227,7 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool
|
|||
max_bus = 0xfc;
|
||||
|
||||
link->secondary = min_bus;
|
||||
link->subordinate = max_bus;
|
||||
link->subordinate = link->secondary;
|
||||
|
||||
/* Read the existing primary/secondary/subordinate bus
|
||||
* number configuration.
|
||||
|
|
@ -245,7 +245,7 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool
|
|||
|
||||
/* set the config map space */
|
||||
|
||||
set_config_map_reg(nodeid, link->link_num, ht_c_index, link->secondary, link->subordinate, sysconf.segbit, sysconf.nodes);
|
||||
set_config_map_reg(nodeid, link->link_num, ht_c_index, link->secondary, max_bus, sysconf.segbit, sysconf.nodes);
|
||||
|
||||
/* Now we can scan all of the subordinate busses i.e. the
|
||||
* chain on the hypertranport link
|
||||
|
|
@ -263,16 +263,11 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool
|
|||
next_unitid = hypertransport_scan_chain(link, 0, max_devfn, ht_unitid_base, offset_unit_id(is_sblink));
|
||||
|
||||
/* Now that nothing is overlapping it is safe to scan the children. */
|
||||
max = pci_scan_bus(link, 0x00, ((next_unitid - 1) << 3) | 7, max);
|
||||
link->subordinate = pci_scan_bus(link, 0x00, ((next_unitid - 1) << 3) | 7, link->secondary);
|
||||
|
||||
/* We know the number of busses behind this bridge. Set the
|
||||
* subordinate bus number to it's real value
|
||||
*/
|
||||
if(ht_c_index>3) { // clear the extend reg
|
||||
clear_config_map_reg(nodeid, link->link_num, ht_c_index, (max+1)>>sysconf.segbit, (link->subordinate)>>sysconf.segbit, sysconf.nodes);
|
||||
}
|
||||
|
||||
link->subordinate = max;
|
||||
set_config_map_reg(nodeid, link->link_num, ht_c_index, link->secondary, link->subordinate, sysconf.segbit, sysconf.nodes);
|
||||
sysconf.ht_c_num++;
|
||||
|
||||
|
|
@ -287,14 +282,15 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool
|
|||
|
||||
}
|
||||
store_ht_c_conf_bus(nodeid, link->link_num, ht_c_index, link->secondary, link->subordinate, &sysconf);
|
||||
return max;
|
||||
return link->subordinate;
|
||||
}
|
||||
|
||||
static unsigned amdfam10_scan_chains(device_t dev, unsigned max)
|
||||
static unsigned amdfam10_scan_chains(device_t dev, unsigned unused)
|
||||
{
|
||||
unsigned nodeid;
|
||||
struct bus *link;
|
||||
unsigned sblink = sysconf.sblk;
|
||||
unsigned int max = dev->bus->subordinate;
|
||||
|
||||
nodeid = amdfam10_nodeid(dev);
|
||||
|
||||
|
|
@ -312,7 +308,10 @@ static unsigned amdfam10_scan_chains(device_t dev, unsigned max)
|
|||
|
||||
max = amdfam10_scan_chain(dev, nodeid, link, is_sblink, max);
|
||||
}
|
||||
return max;
|
||||
|
||||
dev->bus->subordinate = max;
|
||||
|
||||
return unused;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -913,7 +912,7 @@ static void amdfam10_domain_set_resources(device_t dev)
|
|||
}
|
||||
}
|
||||
|
||||
static u32 amdfam10_domain_scan_bus(device_t dev, u32 max)
|
||||
static u32 amdfam10_domain_scan_bus(device_t dev, u32 unused)
|
||||
{
|
||||
u32 reg;
|
||||
int i;
|
||||
|
|
@ -924,7 +923,9 @@ static u32 amdfam10_domain_scan_bus(device_t dev, u32 max)
|
|||
}
|
||||
|
||||
for(link = dev->link_list; link; link = link->next) {
|
||||
max = pci_scan_bus(link, PCI_DEVFN(CONFIG_CDB, 0), 0xff, max);
|
||||
link->secondary = dev->bus->subordinate;
|
||||
link->subordinate = pci_scan_bus(link, PCI_DEVFN(CONFIG_CDB, 0), 0xff, link->secondary);
|
||||
dev->bus->subordinate = link->subordinate;
|
||||
}
|
||||
|
||||
/* Tune the hypertransport transaction for best performance.
|
||||
|
|
@ -948,7 +949,7 @@ static u32 amdfam10_domain_scan_bus(device_t dev, u32 max)
|
|||
pci_write_config32(f0_dev, HT_TRANSACTION_CONTROL, httc);
|
||||
}
|
||||
}
|
||||
return max;
|
||||
return unused;
|
||||
}
|
||||
|
||||
#if IS_ENABLED(CONFIG_GENERATE_SMBIOS_TABLES)
|
||||
|
|
@ -1213,7 +1214,7 @@ static void add_more_links(device_t dev, unsigned total_links)
|
|||
last->next = NULL;
|
||||
}
|
||||
|
||||
static u32 cpu_bus_scan(device_t dev, u32 max)
|
||||
static u32 cpu_bus_scan(device_t dev, u32 passthru)
|
||||
{
|
||||
struct bus *cpu_bus;
|
||||
device_t dev_mc;
|
||||
|
|
@ -1382,7 +1383,7 @@ static u32 cpu_bus_scan(device_t dev, u32 max)
|
|||
amd_cpu_topology(cpu, i, j);
|
||||
} //j
|
||||
}
|
||||
return max;
|
||||
return passthru;
|
||||
}
|
||||
|
||||
static void cpu_bus_init(device_t dev)
|
||||
|
|
|
|||
|
|
@ -171,7 +171,7 @@ static u32 amdk8_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool is_
|
|||
max_bus = 0xff;
|
||||
|
||||
link->secondary = min_bus;
|
||||
link->subordinate = max_bus;
|
||||
link->subordinate = link->secondary;
|
||||
|
||||
/* Read the existing primary/secondary/subordinate bus
|
||||
* number configuration.
|
||||
|
|
@ -186,7 +186,7 @@ static u32 amdk8_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool is_
|
|||
busses &= 0xff000000;
|
||||
busses |= (((unsigned int)(dev->bus->secondary) << 0) |
|
||||
((unsigned int)(link->secondary) << 8) |
|
||||
((unsigned int)(link->subordinate) << 16));
|
||||
(max_bus << 16));
|
||||
pci_write_config32(dev, link->cap + 0x14, busses);
|
||||
|
||||
config_busses &= 0x000fc88;
|
||||
|
|
@ -195,7 +195,7 @@ static u32 amdk8_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool is_
|
|||
(( nodeid & 7) << 4) |
|
||||
((link->link_num & 3) << 8) |
|
||||
((link->secondary) << 16) |
|
||||
((link->subordinate) << 24);
|
||||
(max_bus << 24);
|
||||
f1_write_config32(config_reg, config_busses);
|
||||
|
||||
/* Now we can scan all of the subordinate busses i.e. the
|
||||
|
|
@ -213,12 +213,11 @@ static u32 amdk8_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool is_
|
|||
next_unitid = hypertransport_scan_chain(link, 0, max_devfn, ht_unitid_base, offset_unit_id(is_sblink));
|
||||
|
||||
/* Now that nothing is overlapping it is safe to scan the children. */
|
||||
max = pci_scan_bus(link, 0x00, ((next_unitid - 1) << 3) | 7, max);
|
||||
link->subordinate = pci_scan_bus(link, 0x00, ((next_unitid - 1) << 3) | 7, link->secondary);
|
||||
|
||||
/* We know the number of busses behind this bridge. Set the
|
||||
* subordinate bus number to it's real value
|
||||
*/
|
||||
link->subordinate = max;
|
||||
busses = (busses & 0xff00ffff) |
|
||||
((unsigned int) (link->subordinate) << 16);
|
||||
pci_write_config32(dev, link->cap + 0x14, busses);
|
||||
|
|
@ -239,14 +238,15 @@ static u32 amdk8_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool is_
|
|||
sysconf.hcdn_reg[index] = temp;
|
||||
|
||||
}
|
||||
return max;
|
||||
return link->subordinate;
|
||||
}
|
||||
|
||||
static unsigned amdk8_scan_chains(device_t dev, unsigned max)
|
||||
static unsigned amdk8_scan_chains(device_t dev, unsigned unused)
|
||||
{
|
||||
unsigned nodeid;
|
||||
struct bus *link;
|
||||
unsigned sblink = 0;
|
||||
unsigned int max = dev->bus->subordinate;
|
||||
|
||||
nodeid = amdk8_nodeid(dev);
|
||||
if (nodeid == 0)
|
||||
|
|
@ -266,7 +266,10 @@ static unsigned amdk8_scan_chains(device_t dev, unsigned max)
|
|||
|
||||
max = amdk8_scan_chain(dev, nodeid, link, is_sblink, max);
|
||||
}
|
||||
return max;
|
||||
|
||||
dev->bus->subordinate = max;
|
||||
|
||||
return unused;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -1096,11 +1099,16 @@ static u32 amdk8_domain_scan_bus(device_t dev, u32 max)
|
|||
{
|
||||
u32 reg;
|
||||
int i;
|
||||
struct bus *link = dev->link_list;
|
||||
|
||||
/* Unmap all of the HT chains */
|
||||
for(reg = 0xe0; reg <= 0xec; reg += 4) {
|
||||
f1_write_config32(reg, 0);
|
||||
}
|
||||
max = pci_scan_bus(dev->link_list, PCI_DEVFN(0x18, 0), 0xff, max);
|
||||
|
||||
link->secondary = dev->bus->subordinate;
|
||||
link->subordinate = pci_scan_bus(link, PCI_DEVFN(0x18, 0), 0xff, link->secondary);
|
||||
dev->bus->subordinate = link->subordinate;
|
||||
|
||||
/* Tune the hypertransport transaction for best performance.
|
||||
* Including enabling relaxed ordering if it is safe.
|
||||
|
|
|
|||
Loading…
Reference in New Issue