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authorTomasz Nowicki <tn@semihalf.com>2016-11-30 23:16:34 -0600
committerBjorn Helgaas <helgaas@kernel.org>2016-12-06 13:45:50 -0600
commit648d93fc77da4f655cf13108417f33c91d745e2c (patch)
tree55c0349c7acdf43be0dcbbc45f9523341d9536b7 /include/linux
parent44f22bd91e88f9a1203a6e564a237e593f5f2f74 (diff)
PCI: Add MCFG quirks for Cavium ThunderX pass1.x host controller
ThunderX pass1.x requires to emulate the EA headers for on-chip devices hence it has to use custom pci_thunder_ecam_ops for accessing PCI config space (pci-thunder-ecam.c). Add new entries to MCFG quirk array where it can be applied while probing ACPI based PCI host controller. ThunderX pass1.x is using the same way for accessing off-chip devices (so-called PEM) as silicon pass-2.x so we need to add PEM quirk entries too. Quirk is considered for ThunderX silicon pass1.x only which is identified via MCFG revision 2. ThunderX pass 1.x requires the following accessors: NUMA node 0 PCI segments 0- 3: pci_thunder_ecam_ops (MCFG quirk) NUMA node 0 PCI segments 4- 9: thunder_pem_ecam_ops (MCFG quirk) NUMA node 1 PCI segments 10-13: pci_thunder_ecam_ops (MCFG quirk) NUMA node 1 PCI segments 14-19: thunder_pem_ecam_ops (MCFG quirk) [bhelgaas: change Makefile/ifdefs so quirk doesn't depend on CONFIG_PCI_HOST_THUNDER_ECAM] Signed-off-by: Tomasz Nowicki <tn@semihalf.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/pci-ecam.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/pci-ecam.h b/include/linux/pci-ecam.h
index e88d7db74200..00eb8eb774e2 100644
--- a/include/linux/pci-ecam.h
+++ b/include/linux/pci-ecam.h
@@ -62,7 +62,8 @@ extern struct pci_ecam_ops pci_generic_ecam_ops;
#if defined(CONFIG_ACPI) && defined(CONFIG_PCI_QUIRKS)
extern struct pci_ecam_ops pci_32b_ops; /* 32-bit accesses only */
extern struct pci_ecam_ops hisi_pcie_ops; /* HiSilicon */
-extern struct pci_ecam_ops thunder_pem_ecam_ops; /* Cavium ThunderX 2.x */
+extern struct pci_ecam_ops thunder_pem_ecam_ops; /* Cavium ThunderX 1.x & 2.x */
+extern struct pci_ecam_ops pci_thunder_ecam_ops; /* Cavium ThunderX 1.x */
#endif
#ifdef CONFIG_PCI_HOST_GENERIC