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Work around BIOS quirks on HPE Proliant MicroServer Gen10

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PR:		221350
Submitted by:	Bob Bishop
Reported by:	Rafal Lukawiecki
Reviewed by:	jhb
MFC after:	2 weeks
This commit is contained in:
Greg Lehey 2018-12-17 07:09:46 +00:00
parent b5a2424b58
commit 867bb99bbb
1 changed files with 10 additions and 1 deletions
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11
sys/dev/pci/pci.c
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@ -230,6 +230,7 @@ struct pci_quirk {
#define PCI_QUIRK_UNMAP_REG 4 /* Ignore PCI map register */
#define PCI_QUIRK_DISABLE_MSIX 5 /* MSI-X doesn't work */
#define PCI_QUIRK_MSI_INTX_BUG 6 /* PCIM_CMD_INTxDIS disables MSI */
#define PCI_QUIRK_REALLOC_BAR 7 /* Can't allocate memory at the default address */
int arg1;
int arg2;
};
@ -311,6 +312,12 @@ static const struct pci_quirk pci_quirks[] = {
{ 0x167814e4, PCI_QUIRK_MSI_INTX_BUG, 0, 0 }, /* BCM5715 */
{ 0x167914e4, PCI_QUIRK_MSI_INTX_BUG, 0, 0 }, /* BCM5715S */
/*
* HPE Gen 10 VGA has a memory range that can't be allocated in the
* expected place.
*/
{ 0x98741002, PCI_QUIRK_REALLOC_BAR, 0, 0 },
{ 0 }
};
@ -3283,7 +3290,9 @@ pci_add_map(device_t bus, device_t dev, int reg, struct resource_list *rl,
*/
res = resource_list_reserve(rl, bus, dev, type, &reg, start, end, count,
flags);
if (pci_do_realloc_bars && res == NULL && (start != 0 || end != ~0)) {
if ((pci_do_realloc_bars
|| pci_has_quirk(pci_get_devid(dev), PCI_QUIRK_REALLOC_BAR))
&& res == NULL && (start != 0 || end != ~0)) {
/*
* If the allocation fails, try to allocate a resource for
* this BAR using any available range. The firmware felt