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[PATCH openEuler-1.0-LTS 0/4] xhci fixes for usb openEuler 20.03
by Cheng Jian 07 Apr '21

07 Apr '21

1. xhci fixes for usb openEuler 20.03 2. prepare for add Zhaoxin CPU support One of these patches is required for the Zhaoxin CPU patches. Mathias Nyman (4): xhci: Force Maximum Packet size for Full-speed bulk devices to valid range. xhci: fix runtime pm enabling for quirky Intel hosts xhci: Fix memory leak when caching protocol extended capability PSI tables - take 2 xhci: apply XHCI_PME_STUCK_QUIRK to Intel Comet Lake platforms drivers/usb/host/xhci-hub.c | 25 ++++++++----- drivers/usb/host/xhci-mem.c | 71 ++++++++++++++++++++++++------------- drivers/usb/host/xhci-pci.c | 10 +++--- drivers/usb/host/xhci.h | 16 +++++++-- 4 files changed, 82 insertions(+), 40 deletions(-) -- 2.25.1

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[PATCH OLK-5.10 v2 0/2] kvm: debugfs: some improvement for
by Jiajun Chen 07 Apr '21

07 Apr '21

From: chenjiajun <chenjiajun8(a)huawei.com> virt inclusion category: feature bugzilla: 46853 CVE: NA some improvement for vcpu_stat: 1. Add fastpath kvm exit handles to vcpu_stat, avoid the big deviation between the statistical data and the actual scene. 2. Export preemption timer kvm exits to statistical data. -- ChangeList: v2: move preemption timer exits to the end of vcpu_stat v1: kvm: debugfs: some improvement for vcpu_stat chenjiajun (2): kvm: debugfs: add fastpath msr_wr exits to debugfs statistics kvm: debugfs: add EXIT_REASON_PREEMPTION_TIMER to vcpu_stat arch/x86/include/asm/kvm_host.h | 1 + arch/x86/kvm/vmx/vmx.c | 3 +++ arch/x86/kvm/x86.c | 1 + 3 files changed, 5 insertions(+) -- 2.29.GIT

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openEuler 20.03 合入兆芯补丁冲突适配咨询
by chengjian (D) 07 Apr '21

07 Apr '21

# 1 问题背景 ------- openEuler 20.03 LTS 使用 kernel-4.19 作为开发分支进行补丁适配开发。 zhaoxin 的补丁基于 kernel-4.19 开发，然后我在适配 openEuler-2.0-LTS(20.03) 的时候遇到了一些冲突和编译错误。冲突都比较简单，我已经解决了。后续可以发出来供大家 review。但是编译错误需要大家一起看下。 # 2 问题描述 ------- openEuler apply 兆芯补丁遇到如下编译错误： # 3 问题分析 ------- 导致编译错误的补丁： [PATCH kernel-4.19 v3] xhci: Show Zhaoxin XHCI root hub speed correctly 导致编译错误的原因是：社区的如下补丁，kernel-4.19 合入了，但是 openEuler-1.0-LTS 分支未合入 git log -p kernel-4.19 4e0f891374d8 这些补丁来自于一组 patchset，5.6-rc3 合入 linux mainline xhci: Fix memory leak when caching protocol extended capability PSI tables - take 2 https://patchwork.kernel.org/project/linux-usb/cover/20200210134553.9144-1-… 其中最关键的补丁是 xhci: Fix memory leak when caching protocol extended capability PSI tables - take 2 # 4 需决策内容 ------- 目前有如下 2 个解决方案，大家讨论下看看哪个更好一些。 1. 依赖补丁是一组 bugfix，已经合入 kernel-4.19，补丁直接合入 openEuler 20.03 缺点：需要检视依赖补丁的影响。以及是否还有其他依赖补丁。补丁我已经适配好了，如果选择这个方案，我发出来大家 review下。另外社区是一组 patchset 4个补丁先后都合入了 linux 4.19 stable。20.03 是这4个补丁都合入，还是只需要单点合入依赖的那一个补丁。看起来这个四个补丁之间没有相互依赖关系，都是单独的 bugfix。 2. 了解到兆芯不带依赖补丁，也有一组 patch，是否针对 openEuler 20.03 合入这组补丁。缺点：维护工作量大，需要同时维护两个分支，两组补丁。

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[PATCH kernel-4.19 v3 00/33] Adds Zhaoxin CPU support
by Cheng Jian 06 Apr '21

06 Apr '21

Adds Zhaoxin CPU support LeoLiu-oc (33): x86/cpu: Create Zhaoxin processors architecture support file x86/cpu: Remove redundant cpu_detect_cache_sizes() call x86/cpu/centaur: Replace two-condition switch-case with an if statement x86/cpu/centaur: Add Centaur family >=7 CPUs initialization support x86/cpufeatures: Add Zhaoxin feature bits x86/cpu: Add detect extended topology for Zhaoxin CPUs ACPI, x86: Add Zhaoxin processors support for NONSTOP TSC x86/power: Optimize C3 entry on Centaur CPUs x86/acpi/cstate: Add Zhaoxin processors support for cache flush policy in C3 x86/mce: Add Zhaoxin MCE support x86/mce: Add Zhaoxin CMCI support x86/mce: Add Zhaoxin LMCE support x86/speculation/spectre_v2: Exclude Zhaoxin CPUs from SPECTRE_V2 x86/speculation/swapgs: Exclude Zhaoxin CPUs from SWAPGS vulnerability crypto: x86/crc32c-intel - Don't match some Zhaoxin CPUs x86/perf: Add hardware performance events support for Zhaoxin CPU. PCI: Add Zhaoxin Vendor ID ata: sata_zhaoxin: Add support for Zhaoxin Serial ATA xhci: Add Zhaoxin xHCI LPM U1/U2 feature support PCI: Add ACS quirk for Zhaoxin multi-function devices PCI: Add ACS quirk for Zhaoxin Root/Downstream Ports xhci: fix issue of cross page boundary in TRB prefetch xhci: Show Zhaoxin XHCI root hub speed correctly ALSA: hda: Add support of Zhaoxin SB HDAC ALSA: hda: Add support of Zhaoxin NB HDAC ALSA: hda: Add support of Zhaoxin NB HDAC codec xhci: Adjust the UHCI Controllers bit value xhci: fix issue with resume from system Sx state x86/apic: Mask IOAPIC entries when disabling the local APIC USB:Fix kernel NULL pointer when unbind UHCI form vfio-pci iommu/vt-d:Add support for detecting ACPI device in RMRR x86/Kconfig: Rename UMIP config parameter x86/Kconfig: Drop vendor dependency for X86_UMIP MAINTAINERS | 6 + arch/x86/Kconfig | 15 +- arch/x86/Kconfig.cpu | 13 + arch/x86/crypto/crc32c-intel_glue.c | 7 + arch/x86/events/Makefile | 2 + arch/x86/events/core.c | 4 + arch/x86/events/perf_event.h | 14 +- arch/x86/events/zhaoxin/Makefile | 3 + arch/x86/events/zhaoxin/core.c | 612 +++++++++ arch/x86/events/zhaoxin/uncore.c | 1101 +++++++++++++++++ arch/x86/events/zhaoxin/uncore.h | 308 +++++ arch/x86/include/asm/cpufeatures.h | 21 + arch/x86/include/asm/disabled-features.h | 2 +- arch/x86/include/asm/processor.h | 3 +- arch/x86/include/asm/umip.h | 4 +- arch/x86/kernel/Makefile | 2 +- arch/x86/kernel/acpi/cstate.c | 27 + arch/x86/kernel/apic/apic.c | 7 + arch/x86/kernel/cpu/Makefile | 1 + arch/x86/kernel/cpu/centaur.c | 47 +- arch/x86/kernel/cpu/common.c | 9 +- arch/x86/kernel/cpu/mce/core.c | 97 +- arch/x86/kernel/cpu/mce/intel.c | 11 +- arch/x86/kernel/cpu/mce/internal.h | 6 + arch/x86/kernel/cpu/perfctr-watchdog.c | 8 + arch/x86/kernel/cpu/zhaoxin.c | 170 +++ drivers/acpi/acpi_pad.c | 1 + drivers/acpi/processor_idle.c | 1 + drivers/ata/Kconfig | 8 + drivers/ata/Makefile | 1 + drivers/ata/sata_zhaoxin.c | 384 ++++++ drivers/iommu/dmar.c | 75 +- drivers/iommu/intel-iommu.c | 24 +- drivers/pci/quirks.c | 31 + drivers/usb/core/hcd-pci.c | 10 + drivers/usb/host/uhci-pci.c | 3 + drivers/usb/host/xhci-mem.c | 11 +- drivers/usb/host/xhci-pci.c | 12 + drivers/usb/host/xhci.c | 53 +- drivers/usb/host/xhci.h | 2 + include/linux/dmar.h | 11 +- include/linux/pci_ids.h | 2 + sound/pci/hda/hda_controller.c | 17 +- sound/pci/hda/hda_controller.h | 2 + sound/pci/hda/hda_intel.c | 68 +- sound/pci/hda/patch_hdmi.c | 26 + .../arch/x86/include/asm/disabled-features.h | 2 +- 47 files changed, 3143 insertions(+), 101 deletions(-) create mode 100644 arch/x86/events/zhaoxin/Makefile create mode 100644 arch/x86/events/zhaoxin/core.c create mode 100644 arch/x86/events/zhaoxin/uncore.c create mode 100644 arch/x86/events/zhaoxin/uncore.h create mode 100644 arch/x86/kernel/cpu/zhaoxin.c create mode 100644 drivers/ata/sata_zhaoxin.c -- 2.25.1

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[PATCH kernel-4.19 v2 00/33] Adds Zhaoxin CPU support
by Cheng Jian 06 Apr '21

06 Apr '21

Adds Zhaoxin CPU support LeoLiu-oc (33): x86/cpu: Create Zhaoxin processors architecture support file x86/cpu: Remove redundant cpu_detect_cache_sizes() call x86/cpu/centaur: Replace two-condition switch-case with an if statement x86/cpu/centaur: Add Centaur family >=7 CPUs initialization support x86/cpufeatures: Add Zhaoxin feature bits x86/cpu: Add detect extended topology for Zhaoxin CPUs ACPI, x86: Add Zhaoxin processors support for NONSTOP TSC x86/power: Optimize C3 entry on Centaur CPUs x86/acpi/cstate: Add Zhaoxin processors support for cache flush policy in C3 x86/mce: Add Zhaoxin MCE support x86/mce: Add Zhaoxin CMCI support x86/mce: Add Zhaoxin LMCE support x86/speculation/spectre_v2: Exclude Zhaoxin CPUs from SPECTRE_V2 x86/speculation/swapgs: Exclude Zhaoxin CPUs from SWAPGS vulnerability crypto: x86/crc32c-intel - Don't match some Zhaoxin CPUs x86/perf: Add hardware performance events support for Zhaoxin CPU. PCI: Add Zhaoxin Vendor ID ata: sata_zhaoxin: Add support for Zhaoxin Serial ATA xhci: Add Zhaoxin xHCI LPM U1/U2 feature support PCI: Add ACS quirk for Zhaoxin multi-function devices PCI: Add ACS quirk for Zhaoxin Root/Downstream Ports xhci: fix issue of cross page boundary in TRB prefetch xhci: Show Zhaoxin XHCI root hub speed correctly ALSA: hda: Add support of Zhaoxin SB HDAC ALSA: hda: Add support of Zhaoxin NB HDAC ALSA: hda: Add support of Zhaoxin NB HDAC codec xhci: Adjust the UHCI Controllers bit value xhci: fix issue with resume from system Sx state x86/apic: Mask IOAPIC entries when disabling the local APIC USB:Fix kernel NULL pointer when unbind UHCI form vfio-pci iommu/vt-d:Add support for detecting ACPI device in RMRR x86/Kconfig: Rename UMIP config parameter x86/Kconfig: Drop vendor dependency for X86_UMIP MAINTAINERS | 6 + arch/x86/Kconfig | 15 +- arch/x86/Kconfig.cpu | 13 + arch/x86/crypto/crc32c-intel_glue.c | 7 + arch/x86/events/Makefile | 2 + arch/x86/events/core.c | 4 + arch/x86/events/perf_event.h | 14 +- arch/x86/events/zhaoxin/Makefile | 3 + arch/x86/events/zhaoxin/core.c | 612 +++++++++ arch/x86/events/zhaoxin/uncore.c | 1101 +++++++++++++++++ arch/x86/events/zhaoxin/uncore.h | 308 +++++ arch/x86/include/asm/cpufeatures.h | 21 + arch/x86/include/asm/disabled-features.h | 2 +- arch/x86/include/asm/processor.h | 3 +- arch/x86/include/asm/umip.h | 4 +- arch/x86/kernel/Makefile | 2 +- arch/x86/kernel/acpi/cstate.c | 27 + arch/x86/kernel/apic/apic.c | 7 + arch/x86/kernel/cpu/Makefile | 1 + arch/x86/kernel/cpu/centaur.c | 47 +- arch/x86/kernel/cpu/common.c | 9 +- arch/x86/kernel/cpu/mce/core.c | 97 +- arch/x86/kernel/cpu/mce/intel.c | 11 +- arch/x86/kernel/cpu/mce/internal.h | 6 + arch/x86/kernel/cpu/perfctr-watchdog.c | 8 + arch/x86/kernel/cpu/zhaoxin.c | 170 +++ drivers/acpi/acpi_pad.c | 1 + drivers/acpi/processor_idle.c | 1 + drivers/ata/Kconfig | 8 + drivers/ata/Makefile | 1 + drivers/ata/sata_zhaoxin.c | 384 ++++++ drivers/iommu/dmar.c | 75 +- drivers/iommu/intel-iommu.c | 24 +- drivers/pci/quirks.c | 31 + drivers/usb/core/hcd-pci.c | 10 + drivers/usb/host/uhci-pci.c | 3 + drivers/usb/host/xhci-mem.c | 11 +- drivers/usb/host/xhci-pci.c | 12 + drivers/usb/host/xhci.c | 53 +- drivers/usb/host/xhci.h | 2 + include/linux/dmar.h | 11 +- include/linux/pci_ids.h | 2 + sound/pci/hda/hda_controller.c | 17 +- sound/pci/hda/hda_controller.h | 2 + sound/pci/hda/hda_intel.c | 68 +- sound/pci/hda/patch_hdmi.c | 26 + .../arch/x86/include/asm/disabled-features.h | 2 +- 47 files changed, 3143 insertions(+), 101 deletions(-) create mode 100644 arch/x86/events/zhaoxin/Makefile create mode 100644 arch/x86/events/zhaoxin/core.c create mode 100644 arch/x86/events/zhaoxin/uncore.c create mode 100644 arch/x86/events/zhaoxin/uncore.h create mode 100644 arch/x86/kernel/cpu/zhaoxin.c create mode 100644 drivers/ata/sata_zhaoxin.c -- 2.25.1

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[PATCH kernel-4.19 00/33] Adds Zhaoxin CPU support
by Cheng Jian 06 Apr '21

06 Apr '21

Adds Zhaoxin CPU support LeoLiu-oc (33): x86/cpu: Create Zhaoxin processors architecture support file x86/cpu: Remove redundant cpu_detect_cache_sizes() call x86/cpu/centaur: Replace two-condition switch-case with an if statement x86/cpu/centaur: Add Centaur family >=7 CPUs initialization support x86/cpufeatures: Add Zhaoxin feature bits x86/cpu: Add detect extended topology for Zhaoxin CPUs ACPI, x86: Add Zhaoxin processors support for NONSTOP TSC x86/power: Optimize C3 entry on Centaur CPUs x86/acpi/cstate: Add Zhaoxin processors support for cache flush policy in C3 x86/mce: Add Zhaoxin MCE support x86/mce: Add Zhaoxin CMCI support x86/mce: Add Zhaoxin LMCE support x86/speculation/spectre_v2: Exclude Zhaoxin CPUs from SPECTRE_V2 x86/speculation/swapgs: Exclude Zhaoxin CPUs from SWAPGS vulnerability crypto: x86/crc32c-intel - Don't match some Zhaoxin CPUs x86/perf: Add hardware performance events support for Zhaoxin CPU. PCI: Add Zhaoxin Vendor ID ata: sata_zhaoxin: Add support for Zhaoxin Serial ATA xhci: Add Zhaoxin xHCI LPM U1/U2 feature support PCI: Add ACS quirk for Zhaoxin multi-function devices PCI: Add ACS quirk for Zhaoxin Root/Downstream Ports xhci: fix issue of cross page boundary in TRB prefetch xhci: Show Zhaoxin XHCI root hub speed correctly ALSA: hda: Add support of Zhaoxin SB HDAC ALSA: hda: Add support of Zhaoxin NB HDAC ALSA: hda: Add support of Zhaoxin NB HDAC codec xhci: Adjust the UHCI Controllers bit value xhci: fix issue with resume from system Sx state x86/apic: Mask IOAPIC entries when disabling the local APIC USB:Fix kernel NULL pointer when unbind UHCI form vfio-pci iommu/vt-d:Add support for detecting ACPI device in RMRR x86/Kconfig: Rename UMIP config parameter x86/Kconfig: Drop vendor dependency for X86_UMIP MAINTAINERS | 6 + arch/x86/Kconfig | 15 +- arch/x86/Kconfig.cpu | 13 + arch/x86/crypto/crc32c-intel_glue.c | 7 + arch/x86/events/Makefile | 2 + arch/x86/events/core.c | 4 + arch/x86/events/perf_event.h | 14 +- arch/x86/events/zhaoxin/Makefile | 3 + arch/x86/events/zhaoxin/core.c | 612 +++++++++ arch/x86/events/zhaoxin/uncore.c | 1101 +++++++++++++++++ arch/x86/events/zhaoxin/uncore.h | 308 +++++ arch/x86/include/asm/cpufeatures.h | 21 + arch/x86/include/asm/disabled-features.h | 2 +- arch/x86/include/asm/processor.h | 3 +- arch/x86/include/asm/umip.h | 4 +- arch/x86/kernel/Makefile | 2 +- arch/x86/kernel/acpi/cstate.c | 27 + arch/x86/kernel/apic/apic.c | 7 + arch/x86/kernel/cpu/Makefile | 1 + arch/x86/kernel/cpu/centaur.c | 47 +- arch/x86/kernel/cpu/common.c | 9 +- arch/x86/kernel/cpu/mce/core.c | 97 +- arch/x86/kernel/cpu/mce/intel.c | 11 +- arch/x86/kernel/cpu/mce/internal.h | 6 + arch/x86/kernel/cpu/perfctr-watchdog.c | 8 + arch/x86/kernel/cpu/zhaoxin.c | 170 +++ drivers/acpi/acpi_pad.c | 1 + drivers/acpi/processor_idle.c | 1 + drivers/ata/Kconfig | 8 + drivers/ata/Makefile | 1 + drivers/ata/sata_zhaoxin.c | 384 ++++++ drivers/iommu/dmar.c | 75 +- drivers/iommu/intel-iommu.c | 24 +- drivers/pci/quirks.c | 31 + drivers/usb/core/hcd-pci.c | 10 + drivers/usb/host/uhci-pci.c | 3 + drivers/usb/host/xhci-mem.c | 11 +- drivers/usb/host/xhci-pci.c | 12 + drivers/usb/host/xhci.c | 53 +- drivers/usb/host/xhci.h | 2 + include/linux/dmar.h | 11 +- include/linux/pci_ids.h | 2 + sound/pci/hda/hda_controller.c | 17 +- sound/pci/hda/hda_controller.h | 2 + sound/pci/hda/hda_intel.c | 68 +- sound/pci/hda/patch_hdmi.c | 26 + .../arch/x86/include/asm/disabled-features.h | 2 +- 47 files changed, 3143 insertions(+), 101 deletions(-) create mode 100644 arch/x86/events/zhaoxin/Makefile create mode 100644 arch/x86/events/zhaoxin/core.c create mode 100644 arch/x86/events/zhaoxin/uncore.c create mode 100644 arch/x86/events/zhaoxin/uncore.h create mode 100644 arch/x86/kernel/cpu/zhaoxin.c create mode 100644 drivers/ata/sata_zhaoxin.c -- 2.25.1

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[PATCH openEuler-1.0-LTS v3 0/3] openEuler x86 config update
by Cheng Jian 01 Apr '21

01 Apr '21

openEuler x86 config update Cheng Jian (3): x86/config: enable files cgroup x86/config: enable pagecache feature x86/config: enable security_path feature arch/x86/configs/openeuler_defconfig | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) -- 2.25.1

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[PATCH kernel-4.19 v3] xhci: Show Zhaoxin XHCI root hub speed correctly
by LeoLiuoc 01 Apr '21

01 Apr '21

Some Zhaoxin xHCI controllers follow usb3.1 spec, but only support gen1 speed 5G. While in Linux kernel, if xHCI suspport usb3.1,root hub speed will show on 10G. To fix this issue, read usb speed ID supported by xHCI to determine root hub speed. The patch is scheduled to be submitted to the kernel mainline in 2021. --- v2->v3 - Fix a code logic issue. v1->v2: - Use quirks instead of vendor id. Signed-off-by: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> --- drivers/usb/host/xhci.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index fad995b5635e..d1c87a2a8e06 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -5079,6 +5079,7 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) */ struct device *dev = hcd->self.sysdev; unsigned int minor_rev; + u8 i, j; int retval; /* Accept arbitrarily long scatter-gather lists */ @@ -5133,6 +5134,24 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) hcd->self.root_hub->speed = USB_SPEED_SUPER_PLUS; break; } + + /* usb3.1 has gen1 and gen2, Some zx's xHCI controller that follow usb3.1 spec + * but only support gen1 + */ + if (xhci->quirks & XHCI_ZHAOXIN_HOST) { + minor_rev = 0; + for (j = 0; j < xhci->num_port_caps; j++) { + for (i = 0; i < xhci->port_caps[j].psi_count; i++) { + if (XHCI_EXT_PORT_PSIV(xhci->port_caps[j].psi[i]) >= 5) + minor_rev = 1; + } + if (minor_rev != 1) { + hcd->speed = HCD_USB3; + hcd->self.root_hub->speed = USB_SPEED_SUPER; + } + } + } + xhci_info(xhci, "Host supports USB 3.%x %sSuperSpeed\n", minor_rev, minor_rev ? "Enhanced " : ""); -- 2.20.1

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[PATCH kernel-4.19 v3] xhci: fix issue of cross page boundary in TRB prefetch
by LeoLiuoc 01 Apr '21

01 Apr '21

On some Zhaoxin platforms, xHCI will prefetch TRB for performance improvement. However this TRB prefetch mechanism may cross page boundary, which may access memory not belong to xHCI. In order to fix this issue, using two pages for TRB allocate and only the first page will be used. The patch is scheduled to be submitted to the kernel mainline in 2021. --- v2->v3: - Fix a code logic issues. v1->v2: - Use quirks instead of vendor id. Signed-off-by: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> --- drivers/usb/host/xhci-mem.c | 11 +++++++++-- drivers/usb/host/xhci-pci.c | 5 +++++ drivers/usb/host/xhci.h | 1 + 3 files changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 9e87c282a743..a6101f095db8 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -2450,8 +2450,15 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) * and our use of dma addresses in the trb_address_map radix tree needs * TRB_SEGMENT_SIZE alignment, so we pick the greater alignment need. */ - xhci->segment_pool = dma_pool_create("xHCI ring segments", dev, - TRB_SEGMENT_SIZE, TRB_SEGMENT_SIZE, xhci->page_size); + /* With xHCI TRB prefetch patch:To fix cross page boundry access issue + * in IOV environment */ + if (xhci->quirks & XHCI_ZHAOXIN_TRB_FETCH) { + xhci->segment_pool = dma_pool_create("xHCI ring segments", dev, + TRB_SEGMENT_SIZE*2, TRB_SEGMENT_SIZE*2, xhci->page_size*2); + } else { + xhci->segment_pool = dma_pool_create("xHCI ring segments", dev, + TRB_SEGMENT_SIZE, TRB_SEGMENT_SIZE, xhci->page_size); + } /* See Table 46 and Note on Figure 55 */ xhci->device_pool = dma_pool_create("xHCI input/output contexts", dev, diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 6c6b29901c5e..798b660f2fd0 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -237,6 +237,11 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) pdev->device == 0x3432) xhci->quirks |= XHCI_BROKEN_STREAMS; + if (pdev->vendor == PCI_VENDOR_ID_ZHAOXIN && + (pdev->device == 0x9202 || + pdev->device == 0x9203)) + xhci->quirks |= XHCI_ZHAOXIN_TRB_FETCH; + if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA && pdev->device == PCI_DEVICE_ID_ASMEDIA_1042_XHCI) xhci->quirks |= XHCI_BROKEN_STREAMS; diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 069390a1f2ac..3ae8e25a2622 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1874,6 +1874,7 @@ struct xhci_hcd { #define XHCI_SNPS_BROKEN_SUSPEND BIT_ULL(35) #define XHCI_ZHAOXIN_HOST BIT_ULL(36) #define XHCI_DISABLE_SPARSE BIT_ULL(38) +#define XHCI_ZHAOXIN_TRB_FETCH BIT_ULL(39) unsigned int num_active_eps; unsigned int limit_active_eps; -- 2.20.1

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[PATCH kernel-4.19 v2 0/6] New Zhaoxin CPU vendor ID/FMS patch
by LeoLiuoc 01 Apr '21

01 Apr '21

This set of patches is to add support for Zhaoxin Family 7 CPUs. With these patches, the kernel can identify Zhaoxin CPUs features and Zhaoxin CPU topology information. LeoLiu-oc (6): x86/cpu: Create Zhaoxin processors architecture support file x86/cpu: Remove redundant cpu_detect_cache_sizes() call x86/cpu/centaur: Replace two-condition switch-case with an if statement x86/cpu/centaur: Add Centaur family >=7 CPUs initialization support x86/cpufeatures: Add Zhaoxin feature bits x86/cpu: Add detect extended topology for Zhaoxin CPUs MAINTAINERS | 6 + arch/x86/Kconfig.cpu | 13 +++ arch/x86/include/asm/cpufeatures.h | 21 ++++ arch/x86/include/asm/processor.h | 3 +- arch/x86/kernel/cpu/Makefile | 1 + arch/x86/kernel/cpu/centaur.c | 47 +++++--- arch/x86/kernel/cpu/zhaoxin.c | 170 +++++++++++++++++++++++++++++ 7 files changed, 243 insertions(+), 18 deletions(-) create mode 100644 arch/x86/kernel/cpu/zhaoxin.c -- 2.20.1

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