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device: Add IORESOURCE_ABOVE_4G flag to PCI64 resources 

When a PCI resource is marked as 64-bits, the IORESOURCE_ABOVE_4G flag
needs to be passed to the v4 allocator to ensure that the resource will
be allocated in a range large enough to succeed.

BUG=b:214443809
TEST=agah can successfully allocate all of the Nvidia GN20 BARs

Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I3f16f52f2a64f8728853df263da29871dca533f7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64725
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@tutanota.com>
This commit is contained in:
Tim Wawrzynczak 2022-05-27 12:27:50 -06:00 committed by Martin L Roth
parent 5027d2de4d
commit 2b83fa7741
1 changed files with 3 additions and 1 deletions
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4
src/device/pci_device.c
View File

@ -423,7 +423,9 @@ static void configure_adjustable_base(const struct device *dev,
res->align = max_requested_bits;
res->gran = max_requested_bits;
res->limit = (res->flags & IORESOURCE_PCI64) ? UINT64_MAX : UINT32_MAX;
res->flags |= IORESOURCE_PCIE_RESIZABLE_BAR;
res->flags |= (res->flags & IORESOURCE_PCI64) ?
IORESOURCE_PCIE_RESIZABLE_BAR | IORESOURCE_ABOVE_4G :
IORESOURCE_PCIE_RESIZABLE_BAR;
printk(BIOS_INFO, "%s: Adjusting resource index %lu: base: %llx size: %llx "
"align: %d gran: %d limit: %llx\n",