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- HT 2.00b added a new flag to the MSI mapping HT capability to indicate

Browse Source 
that the MSI mapping window is fixed at 0xfee00000 and the capability
  does not include two more dwords used to program the address.  Supporting
  this mostly results in quieting spurious warnings during boot about
  non-default MSI mapping windows.
- HT 2.00b also added a new HT capability type, so support that in pciconf.

MFC after:	3 days
Tested by:	jmg
This commit is contained in:
John Baldwin 2007-04-25 14:45:46 +00:00
parent e5b725c271
commit d68b1825b7
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=169037
3 changed files with 26 additions and 15 deletions
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12
sys/dev/pci/pci.c
View File

@ -533,15 +533,19 @@ pci_read_extcap(device_t pcib, pcicfgregs *cfg)
val = REG(ptr + PCIR_HT_COMMAND, 2);
switch (val & PCIM_HTCMD_CAP_MASK) {
case PCIM_HTCAP_MSI_MAPPING:
if (!(val & PCIM_HTCMD_MSI_FIXED)) {
/* Sanity check the mapping window. */
addr = REG(ptr + PCIR_HTMSI_ADDRESS_HI, 4);
addr = REG(ptr + PCIR_HTMSI_ADDRESS_HI,
4);
addr <<= 32;
addr = REG(ptr + PCIR_HTMSI_ADDRESS_LO, 4);
addr = REG(ptr + PCIR_HTMSI_ADDRESS_LO,
4);
if (addr != MSI_INTEL_ADDR_BASE)
device_printf(pcib,
"HT Bridge at %d:%d:%d has non-default MSI window 0x%llx\n",
cfg->bus, cfg->slot, cfg->func,
(long long)addr);
cfg->bus, cfg->slot,
cfg->func, (long long)addr);
}
/* Enable MSI -> HT mapping. */
val |= PCIM_HTCMD_MSI_ENABLE;

2
sys/dev/pci/pcireg.h
View File

@ -553,9 +553,11 @@
#define PCIM_HTCAP_DIRECT_ROUTE 0xb000 /* 10110 */
#define PCIM_HTCAP_VCSET 0xb800 /* 10111 */
#define PCIM_HTCAP_RETRY_MODE 0xc000 /* 11000 */
#define PCIM_HTCAP_X86_ENCODING 0xc800 /* 11001 */
/* HT MSI Mapping Capability definitions. */
#define PCIM_HTCMD_MSI_ENABLE 0x0001
#define PCIM_HTCMD_MSI_FIXED 0x0002
#define PCIR_HTMSI_ADDRESS_LO 0x4
#define PCIR_HTMSI_ADDRESS_HI 0x8

7
usr.sbin/pciconf/cap.c
View File

@ -243,9 +243,13 @@ cap_ht(int fd, struct pci_conf *p, uint8_t ptr)
printf("address mapping");
break;
case PCIM_HTCAP_MSI_MAPPING:
printf("MSI address window %s at 0x",
printf("MSI %saddress window %s at 0x",
command & PCIM_HTCMD_MSI_FIXED ? "fixed " : "",
command & PCIM_HTCMD_MSI_ENABLE ? "enabled" :
"disabled");
if (command & PCIM_HTCMD_MSI_FIXED)
printf("fee00000");
else {
reg = read_config(fd, &p->pc_sel,
ptr + PCIR_HTMSI_ADDRESS_HI, 4);
if (reg != 0)
@ -253,6 +257,7 @@ cap_ht(int fd, struct pci_conf *p, uint8_t ptr)
reg = read_config(fd, &p->pc_sel,
ptr + PCIR_HTMSI_ADDRESS_LO, 4);
printf("%08x", reg);
}
break;
case PCIM_HTCAP_DIRECT_ROUTE:
printf("direct route");