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nb/intel/gm45/acpi.c: Don't read PCI config to check presence 

Change-Id: I4cac29c1bf59df56df8cf0035ee1d5379bbde76e
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34837
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This commit is contained in:
Arthur Heymans 2019-08-12 09:41:42 +02:00
parent 302dddf0f4
commit 15063e8819
1 changed files with 5 additions and 3 deletions
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8
src/northbridge/intel/gm45/acpi.c
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@ -69,9 +69,11 @@ unsigned long acpi_fill_mcfg(unsigned long current)
static unsigned long acpi_fill_dmar(unsigned long current) static unsigned long acpi_fill_dmar(unsigned long current)
{ {
int me_active = (pcidev_on_root(3, 0) != NULL) && const struct device *dev;
(pci_read_config8(pcidev_on_root(3, 0), PCI_CLASS_REVISION) !=
0xff); dev = pcidev_on_root(3, 0);
int me_active = dev && dev->enabled;
int stepping = pci_read_config8(pcidev_on_root(0, 0), int stepping = pci_read_config8(pcidev_on_root(0, 0),
PCI_CLASS_REVISION); PCI_CLASS_REVISION);