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| author | Pu Wen <puwen@hygon.cn> | 2018-09-25 16:46:11 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2018-09-27 18:28:58 +0200 |
| commit | c6babb5806b77c6ca7078c3487bb0a29704a4e38 (patch) | |
| tree | 645a7fba703bf9b025351a7b9c62a921e611caa6 /arch/x86/pci | |
| parent | x86/amd_nb: Check vendor in AMD-only functions (diff) | |
| download | linux-c6babb5806b77c6ca7078c3487bb0a29704a4e38.tar.xz linux-c6babb5806b77c6ca7078c3487bb0a29704a4e38.zip | |
x86/pci, x86/amd_nb: Add Hygon Dhyana support to PCI and northbridge
Hygon's PCI vendor ID is 0x1d94, and there are PCI devices
0x1450/0x1463/0x1464 for the host bridge on the Hygon Dhyana platform.
Add Hygon Dhyana support to the PCI and northbridge subsystems by using
the code path of AMD family 17h.
[ bp: Massage commit message, sort local vars into reverse xmas tree
order and move the amd_northbridges.num check up. ]
Signed-off-by: Pu Wen <puwen@hygon.cn>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> # pci_ids.h
Cc: tglx@linutronix.de
Cc: mingo@redhat.com
Cc: hpa@zytor.com
Cc: x86@kernel.org
Cc: thomas.lendacky@amd.com
Cc: helgaas@kernel.org
Cc: linux-pci@vger.kernel.org
Link: https://lkml.kernel.org/r/5f8877bd413f2ea0833378dd5454df0720e1c0df.1537885177.git.puwen@hygon.cn
Diffstat (limited to 'arch/x86/pci')
| -rw-r--r-- | arch/x86/pci/amd_bus.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c index 649bdde63e32..bfa50e65ef6c 100644 --- a/arch/x86/pci/amd_bus.c +++ b/arch/x86/pci/amd_bus.c @@ -93,7 +93,8 @@ static int __init early_root_info_init(void) vendor = id & 0xffff; device = (id>>16) & 0xffff; - if (vendor != PCI_VENDOR_ID_AMD) + if (vendor != PCI_VENDOR_ID_AMD && + vendor != PCI_VENDOR_ID_HYGON) continue; if (hb_probes[i].device == device) { @@ -390,7 +391,8 @@ static int __init pci_io_ecs_init(void) static int __init amd_postcore_init(void) { - if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD) + if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD && + boot_cpu_data.x86_vendor != X86_VENDOR_HYGON) return 0; early_root_info_init(); |