summaryrefslogtreecommitdiff
path: root/src/arch/i386
diff options
context:
space:
mode:
authorYinghai Lu <yinghailu@gmail.com>2008-02-20 17:41:38 +0000
committerStefan Reinauer <stepan@openbios.org>2008-02-20 17:41:38 +0000
commitf327d9f9540971518e1661e1f50d30ffa6b74173 (patch)
tree51e84712bcaf920a99413e46dd9d255d4278d5c9 /src/arch/i386
parent8eff1e3d0419f42684fc8a63e1dd0a84eb7e9b50 (diff)
downloadcoreboot-f327d9f9540971518e1661e1f50d30ffa6b74173.tar.xz
Route device IRQ through PCI bridge instead in mptable.
Don't enable pin0 for ioapic of io-4. 1. apic error in kernel for MB with mcp55+io55 2. some pcie-cards could have pci bridge there, so need to put entries for device under them in mptable. Signed-off-by: Yinghai Lu <yinghailu@gmail.com> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3112 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/arch/i386')
-rw-r--r--src/arch/i386/include/arch/smp/mpspec.h4
-rw-r--r--src/arch/i386/smp/mpspec.c60
2 files changed, 60 insertions, 4 deletions
diff --git a/src/arch/i386/include/arch/smp/mpspec.h b/src/arch/i386/include/arch/smp/mpspec.h
index 600a584514..9acaeccd23 100644
--- a/src/arch/i386/include/arch/smp/mpspec.h
+++ b/src/arch/i386/include/arch/smp/mpspec.h
@@ -248,6 +248,10 @@ void smp_write_intsrc(struct mp_config_table *mc,
unsigned char irqtype, unsigned short irqflag,
unsigned char srcbus, unsigned char srcbusirq,
unsigned char dstapic, unsigned char dstirq);
+void smp_write_intsrc_pci_bridge(struct mp_config_table *mc,
+ unsigned char irqtype, unsigned short irqflag,
+ struct device *dev,
+ unsigned char dstapic, unsigned char *dstirq);
void smp_write_lintsrc(struct mp_config_table *mc,
unsigned char irqtype, unsigned short irqflag,
unsigned char srcbusid, unsigned char srcbusirq,
diff --git a/src/arch/i386/smp/mpspec.c b/src/arch/i386/smp/mpspec.c
index 797dab43c6..3aedd21088 100644
--- a/src/arch/i386/smp/mpspec.c
+++ b/src/arch/i386/smp/mpspec.c
@@ -1,6 +1,7 @@
#include <console/console.h>
#include <device/device.h>
#include <device/path.h>
+#include <device/pci_ids.h>
#include <cpu/cpu.h>
#include <arch/smp/mpspec.h>
#include <string.h>
@@ -26,8 +27,7 @@ void *smp_write_floating_table(unsigned long addr)
void *v;
/* 16 byte align the table address */
- addr += 15;
- addr &= ~15;
+ addr = (addr + 0xf) & (~0xf);
v = (void *)addr;
mf = v;
@@ -52,8 +52,8 @@ void *smp_write_floating_table_physaddr(unsigned long addr, unsigned long mpf_ph
{
struct intel_mp_floating *mf;
void *v;
-
- v = (void *)addr;
+
+ v = (void *)addr;
mf = v;
mf->mpf_signature[0] = '_';
mf->mpf_signature[1] = 'M';
@@ -204,6 +204,58 @@ void smp_write_intsrc(struct mp_config_table *mc,
#endif
}
+void smp_write_intsrc_pci_bridge(struct mp_config_table *mc,
+ unsigned char irqtype, unsigned short irqflag,
+ struct device *dev,
+ unsigned char dstapic, unsigned char *dstirq)
+{
+ struct device *child;
+
+ int linkn;
+ int i;
+ int srcbus;
+ int slot;
+
+ struct bus *link;
+ unsigned char dstirq_x[4];
+
+ for (linkn = 0; linkn < dev->links; linkn++) {
+
+ link = &dev->link[linkn];
+ child = link->children;
+ srcbus = link->secondary;
+
+ while (child) {
+ if (child->path.type != DEVICE_PATH_PCI)
+ goto next;
+
+ slot = (child->path.u.pci.devfn >> 3);
+ /* round pins */
+ for (i = 0; i < 4; i++)
+ dstirq_x[i] = dstirq[(i + slot) % 4];
+
+ if ((child->class >> 16) != PCI_BASE_CLASS_BRIDGE) {
+ /* pci device */
+ printk_debug("route irq: %s %04x\n", dev_path(child));
+ for (i = 0; i < 4; i++)
+ smp_write_intsrc(mc, irqtype, irqflag, srcbus, (slot<<2)|i, dstapic, dstirq_x[i]);
+ goto next;
+ }
+
+ switch (child->class>>8) {
+ case PCI_CLASS_BRIDGE_PCI:
+ case PCI_CLASS_BRIDGE_PCMCIA:
+ case PCI_CLASS_BRIDGE_CARDBUS:
+ printk_debug("route irq bridge: %s %04x\n", dev_path(child));
+ smp_write_intsrc_pci_bridge(mc, irqtype, irqflag, child, dstapic, dstirq_x);
+ }
+
+ next:
+ child = child->sibling;
+ }
+
+ }
+}
void smp_write_lintsrc(struct mp_config_table *mc,
unsigned char irqtype, unsigned short irqflag,