Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 393c092a authored by Joerg Roedel's avatar Joerg Roedel
Browse files

iommu/amd: Remove find_last_devid_on_pci() 



The value read from the PCI header is not reliable, so
remove this code.

Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 226e889b

drivers/iommu/amd_iommu_init.c

+0 −19
Original line number Diff line number Diff line
@@ -407,20 +407,6 @@ static inline int ivhd_entry_length(u8 *ivhd) 
	return 0x04 << (*ivhd >> 6);

}



/*

 * This function reads the last device id the IOMMU has to handle from the PCI

 * capability header for this IOMMU

 */

static int __init find_last_devid_on_pci(int bus, int dev, int fn, int cap_ptr)

{

	u32 cap;



	cap = read_pci_config(bus, dev, fn, cap_ptr+MMIO_RANGE_OFFSET);

	update_last_devid(PCI_DEVID(MMIO_GET_BUS(cap), MMIO_GET_LD(cap)));



	return 0;

}



/*

 * After reading the highest device id from the IOMMU PCI capability header

 * this function looks if there is a higher device id defined in the ACPI table
@@ -433,11 +419,6 @@ static int __init find_last_devid_from_ivhd(struct ivhd_header *h) 
	p += sizeof(*h);

	end += h->length;



	find_last_devid_on_pci(PCI_BUS_NUM(h->devid),

			PCI_SLOT(h->devid),

			PCI_FUNC(h->devid),

			h->cap_ptr);



	while (p < end) {

		dev = (struct ivhd_entry *)p;

		switch (dev->type) {