Documentation/admin-guide/kernel-parameters.txt | 9 + .../devicetree/bindings/gpu/brcm,bcm-v3d.yaml | 1 + .../bindings/soc/bcm/brcm,bcm2835-pm.txt | 46 - .../bindings/soc/bcm/brcm,bcm2835-pm.yaml | 86 ++ Kconfig | 2 + Kconfig.redhat | 17 + Makefile | 12 +- arch/arm/Kconfig | 4 +- arch/arm/boot/dts/bcm2711-rpi.dtsi | 4 + arch/arm/boot/dts/bcm2711.dtsi | 14 +- arch/arm/boot/dts/bcm2835-common.dtsi | 1 + arch/arm/configs/bcm2835_defconfig | 1 + arch/arm/configs/multi_v7_defconfig | 1 + arch/arm64/Kconfig | 3 +- arch/arm64/configs/defconfig | 1 + arch/arm64/kernel/acpi.c | 4 + arch/s390/include/asm/ipl.h | 1 + arch/s390/kernel/ipl.c | 5 + arch/s390/kernel/setup.c | 4 + arch/x86/kernel/cpu/common.c | 1 + arch/x86/kernel/setup.c | 68 +- drivers/acpi/apei/hest.c | 8 + drivers/acpi/irq.c | 17 +- drivers/acpi/scan.c | 9 + drivers/ata/libahci.c | 18 + drivers/char/ipmi/ipmi_dmi.c | 15 + drivers/char/ipmi/ipmi_msghandler.c | 16 +- drivers/firmware/efi/Makefile | 1 + drivers/firmware/efi/efi.c | 124 ++- drivers/firmware/efi/secureboot.c | 38 + drivers/gpu/drm/drm_ioctl.c | 8 +- drivers/gpu/drm/v3d/Kconfig | 5 +- drivers/gpu/drm/v3d/v3d_debugfs.c | 18 +- drivers/gpu/drm/v3d/v3d_drv.c | 12 +- drivers/gpu/drm/v3d/v3d_gem.c | 12 +- drivers/hid/hid-rmi.c | 64 -- drivers/hwtracing/coresight/coresight-etm4x-core.c | 19 + drivers/input/rmi4/rmi_driver.c | 124 +-- drivers/iommu/iommu.c | 22 + drivers/message/fusion/mptsas.c | 10 + drivers/message/fusion/mptspi.c | 11 + drivers/mfd/bcm2835-pm.c | 74 +- drivers/net/phy/Kconfig | 5 + drivers/net/phy/Makefile | 1 + drivers/net/phy/bcm-phy-lib.h | 19 + drivers/net/phy/bcm-phy-ptp.c | 944 +++++++++++++++++++++ drivers/net/phy/broadcom.c | 33 +- drivers/net/wireguard/main.c | 6 + drivers/nvme/host/core.c | 22 +- drivers/nvme/host/multipath.c | 19 +- drivers/nvme/host/nvme.h | 4 + drivers/pci/pci-driver.c | 78 ++ drivers/pci/quirks.c | 24 + drivers/scsi/aacraid/linit.c | 2 + drivers/scsi/be2iscsi/be_main.c | 2 + drivers/scsi/hpsa.c | 4 + drivers/scsi/lpfc/lpfc_ids.h | 14 + drivers/scsi/megaraid/megaraid_sas_base.c | 4 + drivers/scsi/mpt3sas/mpt3sas_scsih.c | 4 + drivers/scsi/qla2xxx/qla_os.c | 6 + drivers/scsi/qla4xxx/ql4_os.c | 2 + drivers/soc/bcm/bcm2835-power.c | 72 +- drivers/usb/core/hub.c | 7 + fs/afs/main.c | 3 + include/linux/efi.h | 22 +- include/linux/kernel.h | 21 + include/linux/lsm_hook_defs.h | 2 + include/linux/lsm_hooks.h | 6 + include/linux/mfd/bcm2835-pm.h | 1 + include/linux/module.h | 1 + include/linux/panic.h | 19 +- include/linux/pci.h | 16 + include/linux/rh_kabi.h | 515 +++++++++++ include/linux/rmi.h | 1 + include/linux/security.h | 5 + init/Kconfig | 2 +- kernel/Makefile | 1 + kernel/bpf/syscall.c | 23 + kernel/module/main.c | 2 + kernel/module/signing.c | 9 +- kernel/panic.c | 14 + kernel/rh_messages.c | 209 +++++ scripts/mod/modpost.c | 8 + scripts/tags.sh | 2 + security/integrity/platform_certs/load_uefi.c | 6 +- security/lockdown/Kconfig | 13 + security/lockdown/lockdown.c | 1 + security/security.c | 6 + 88 files changed, 2766 insertions(+), 324 deletions(-) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index f2d26cb7e853..c8c658e66f69 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -6297,6 +6297,15 @@ unknown_nmi_panic [X86] Cause panic on unknown NMI. + unprivileged_bpf_disabled= + Format: { "0" | "1" | "2" } + Sets the initial value of + kernel.unprivileged_bpf_disabled sysctl knob. + 0 - unprivileged bpf() syscall access is enabled. + 1 - unprivileged bpf() syscall access is disabled permanently. + 2 - unprivileged bpf() syscall access is disabled. + Default value is 2. + usbcore.authorized_default= [USB] Default USB device authorization: (default -1 = authorized except for wireless USB, diff --git a/Documentation/devicetree/bindings/gpu/brcm,bcm-v3d.yaml b/Documentation/devicetree/bindings/gpu/brcm,bcm-v3d.yaml index e6485f7b046f..217c42874f41 100644 --- a/Documentation/devicetree/bindings/gpu/brcm,bcm-v3d.yaml +++ b/Documentation/devicetree/bindings/gpu/brcm,bcm-v3d.yaml @@ -16,6 +16,7 @@ properties: compatible: enum: + - brcm,2711-v3d - brcm,7268-v3d - brcm,7278-v3d diff --git a/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.txt b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.txt deleted file mode 100644 index 72ff033565e5..000000000000 --- a/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.txt +++ /dev/null @@ -1,46 +0,0 @@ -BCM2835 PM (Power domains, watchdog) - -The PM block controls power domains and some reset lines, and includes -a watchdog timer. This binding supersedes the brcm,bcm2835-pm-wdt -binding which covered some of PM's register range and functionality. - -Required properties: - -- compatible: Should be "brcm,bcm2835-pm" -- reg: Specifies base physical address and size of the two - register ranges ("PM" and "ASYNC_BRIDGE" in that - order) -- clocks: a) v3d: The V3D clock from CPRMAN - b) peri_image: The PERI_IMAGE clock from CPRMAN - c) h264: The H264 clock from CPRMAN - d) isp: The ISP clock from CPRMAN -- #reset-cells: Should be 1. This property follows the reset controller - bindings[1]. -- #power-domain-cells: Should be 1. This property follows the power domain - bindings[2]. - -Optional properties: - -- timeout-sec: Contains the watchdog timeout in seconds -- system-power-controller: Whether the watchdog is controlling the - system power. This node follows the power controller bindings[3]. - -[1] Documentation/devicetree/bindings/reset/reset.txt -[2] Documentation/devicetree/bindings/power/power-domain.yaml -[3] Documentation/devicetree/bindings/power/power-controller.txt - -Example: - -pm { - compatible = "brcm,bcm2835-pm", "brcm,bcm2835-pm-wdt"; - #power-domain-cells = <1>; - #reset-cells = <1>; - reg = <0x7e100000 0x114>, - <0x7e00a000 0x24>; - clocks = <&clocks BCM2835_CLOCK_V3D>, - <&clocks BCM2835_CLOCK_PERI_IMAGE>, - <&clocks BCM2835_CLOCK_H264>, - <&clocks BCM2835_CLOCK_ISP>; - clock-names = "v3d", "peri_image", "h264", "isp"; - system-power-controller; -}; diff --git a/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.yaml b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.yaml new file mode 100644 index 000000000000..894786640938 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.yaml @@ -0,0 +1,86 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/soc/bcm/brcm,bcm2835-pm.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: BCM2835 PM (Power domains, watchdog) + +description: | + The PM block controls power domains and some reset lines, and includes a + watchdog timer. + +maintainers: + - Nicolas Saenz Julienne + +allOf: + - $ref: ../../watchdog/watchdog.yaml# + +properties: + compatible: + items: + - enum: + - brcm,bcm2835-pm + - brcm,bcm2711-pm + - const: brcm,bcm2835-pm-wdt + + reg: + minItems: 2 + maxItems: 3 + + reg-names: + minItems: 2 + items: + - const: pm + - const: asb + - const: rpivid_asb + + "#power-domain-cells": + const: 1 + + "#reset-cells": + const: 1 + + clocks: + minItems: 4 + maxItems: 4 + + clock-names: + items: + - const: v3d + - const: peri_image + - const: h264 + - const: isp + + system-power-controller: + type: boolean + + timeout-sec: true + +required: + - compatible + - reg + - "#power-domain-cells" + - "#reset-cells" + - clocks + +additionalProperties: false + +examples: + - | + #include + + watchdog@7e100000 { + compatible = "brcm,bcm2835-pm", "brcm,bcm2835-pm-wdt"; + #power-domain-cells = <1>; + #reset-cells = <1>; + reg = <0x7e100000 0x114>, + <0x7e00a000 0x24>; + reg-names = "pm", "asb"; + clocks = <&clocks BCM2835_CLOCK_V3D>, + <&clocks BCM2835_CLOCK_PERI_IMAGE>, + <&clocks BCM2835_CLOCK_H264>, + <&clocks BCM2835_CLOCK_ISP>; + clock-names = "v3d", "peri_image", "h264", "isp"; + system-power-controller; + }; diff --git a/Kconfig b/Kconfig index 745bc773f567..f57ff40109d7 100644 --- a/Kconfig +++ b/Kconfig @@ -30,3 +30,5 @@ source "lib/Kconfig" source "lib/Kconfig.debug" source "Documentation/Kconfig" + +source "Kconfig.redhat" diff --git a/Kconfig.redhat b/Kconfig.redhat new file mode 100644 index 000000000000..effb81d04bfd --- /dev/null +++ b/Kconfig.redhat @@ -0,0 +1,17 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Red Hat specific options +# + +menu "Red Hat options" + +config RHEL_DIFFERENCES + bool "Remove support for deprecated features" + help + Red Hat may choose to deprecate certain features in its kernels. + Enable this option to remove support for hardware that is no + longer supported. + + Unless you want a restricted kernel, say N here. + +endmenu diff --git a/Makefile b/Makefile index 00fd80c5dd6e..7ab3609b69aa 100644 --- a/Makefile +++ b/Makefile @@ -18,6 +18,10 @@ $(if $(filter __%, $(MAKECMDGOALS)), \ PHONY := __all __all: +# Set RHEL variables +# Use this spot to avoid future merge conflicts +include Makefile.rhelver + # We are using a recursive build, so we need to do a little thinking # to get the ordering right. # @@ -1244,7 +1248,13 @@ define filechk_version.h ((c) > 255 ? 255 : (c)))'; \ echo \#define LINUX_VERSION_MAJOR $(VERSION); \ echo \#define LINUX_VERSION_PATCHLEVEL $(PATCHLEVEL); \ - echo \#define LINUX_VERSION_SUBLEVEL $(SUBLEVEL) + echo \#define LINUX_VERSION_SUBLEVEL $(SUBLEVEL); \ + echo '#define RHEL_MAJOR $(RHEL_MAJOR)'; \ + echo '#define RHEL_MINOR $(RHEL_MINOR)'; \ + echo '#define RHEL_RELEASE_VERSION(a,b) (((a) << 8) + (b))'; \ + echo '#define RHEL_RELEASE_CODE \ + $(shell expr $(RHEL_MAJOR) \* 256 + $(RHEL_MINOR))'; \ + echo '#define RHEL_RELEASE "$(RHEL_RELEASE)"' endef $(version_h): PATCHLEVEL := $(or $(PATCHLEVEL), 0) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 7630ba9cb6cc..c2e2991edd11 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1382,9 +1382,9 @@ config HIGHMEM If unsure, say n. config HIGHPTE - bool "Allocate 2nd-level pagetables from highmem" if EXPERT + bool "Allocate 2nd-level pagetables from highmem" depends on HIGHMEM - default y + default n help The VM uses one page of physical memory for each page table. For systems with a lot of processes, this can use a lot of diff --git a/arch/arm/boot/dts/bcm2711-rpi.dtsi b/arch/arm/boot/dts/bcm2711-rpi.dtsi index ca266c5d9f9b..98817a6675b9 100644 --- a/arch/arm/boot/dts/bcm2711-rpi.dtsi +++ b/arch/arm/boot/dts/bcm2711-rpi.dtsi @@ -69,6 +69,10 @@ blconfig: nvram@0 { }; }; +&v3d { + clocks = <&firmware_clocks 5>; +}; + &vchiq { interrupts = ; }; diff --git a/arch/arm/boot/dts/bcm2711.dtsi b/arch/arm/boot/dts/bcm2711.dtsi index 89af57482bc8..941c4d16791b 100644 --- a/arch/arm/boot/dts/bcm2711.dtsi +++ b/arch/arm/boot/dts/bcm2711.dtsi @@ -107,12 +107,13 @@ dma: dma@7e007000 { }; pm: watchdog@7e100000 { - compatible = "brcm,bcm2835-pm", "brcm,bcm2835-pm-wdt"; + compatible = "brcm,bcm2711-pm", "brcm,bcm2835-pm-wdt"; #power-domain-cells = <1>; #reset-cells = <1>; reg = <0x7e100000 0x114>, <0x7e00a000 0x24>, <0x7ec11000 0x20>; + reg-names = "pm", "asb", "rpivid_asb"; clocks = <&clocks BCM2835_CLOCK_V3D>, <&clocks BCM2835_CLOCK_PERI_IMAGE>, <&clocks BCM2835_CLOCK_H264>, @@ -601,6 +602,17 @@ genet_mdio: mdio@e14 { #size-cells = <0x0>; }; }; + + v3d: gpu@7ec00000 { + compatible = "brcm,2711-v3d"; + reg = <0x0 0x7ec00000 0x4000>, + <0x0 0x7ec04000 0x4000>; + reg-names = "hub", "core0"; + + power-domains = <&pm BCM2835_POWER_DOMAIN_GRAFX_V3D>; + resets = <&pm BCM2835_RESET_V3D>; + interrupts = ; + }; }; }; diff --git a/arch/arm/boot/dts/bcm2835-common.dtsi b/arch/arm/boot/dts/bcm2835-common.dtsi index c25e797b9060..a037d2bc5b11 100644 --- a/arch/arm/boot/dts/bcm2835-common.dtsi +++ b/arch/arm/boot/dts/bcm2835-common.dtsi @@ -62,6 +62,7 @@ pm: watchdog@7e100000 { #reset-cells = <1>; reg = <0x7e100000 0x114>, <0x7e00a000 0x24>; + reg-names = "pm", "asb"; clocks = <&clocks BCM2835_CLOCK_V3D>, <&clocks BCM2835_CLOCK_PERI_IMAGE>, <&clocks BCM2835_CLOCK_H264>, diff --git a/arch/arm/configs/bcm2835_defconfig b/arch/arm/configs/bcm2835_defconfig index a9ed79b7f871..9270512c14ea 100644 --- a/arch/arm/configs/bcm2835_defconfig +++ b/arch/arm/configs/bcm2835_defconfig @@ -106,6 +106,7 @@ CONFIG_REGULATOR_GPIO=y CONFIG_MEDIA_SUPPORT=y CONFIG_MEDIA_CAMERA_SUPPORT=y CONFIG_DRM=y +CONFIG_DRM_V3D=y CONFIG_DRM_VC4=y CONFIG_FB_SIMPLE=y CONFIG_FRAMEBUFFER_CONSOLE=y diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig index ce9826bce29b..948d18e59cf5 100644 --- a/arch/arm/configs/multi_v7_defconfig +++ b/arch/arm/configs/multi_v7_defconfig @@ -747,6 +747,7 @@ CONFIG_DRM_IMX_PARALLEL_DISPLAY=m CONFIG_DRM_IMX_TVE=m CONFIG_DRM_IMX_LDB=m CONFIG_DRM_IMX_HDMI=m +CONFIG_DRM_V3D=m CONFIG_DRM_VC4=m CONFIG_DRM_ETNAVIV=m CONFIG_DRM_MXSFB=m diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 1652a9800ebe..834d178f6c70 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1128,7 +1128,7 @@ endchoice config ARM64_FORCE_52BIT bool "Force 52-bit virtual addresses for userspace" - depends on ARM64_VA_BITS_52 && EXPERT + depends on ARM64_VA_BITS_52 help For systems with 52-bit userspace VAs enabled, the kernel will attempt to maintain compatibility with older software by providing 48-bit VAs @@ -1367,6 +1367,7 @@ config XEN config FORCE_MAX_ZONEORDER int default "14" if ARM64_64K_PAGES + default "13" if (ARCH_THUNDER && !ARM64_64K_PAGES) default "12" if ARM64_16K_PAGES default "11" help diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 7d1105343bc2..36aace2b5b28 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -754,6 +754,7 @@ CONFIG_DRM_CDNS_MHDP8546=m CONFIG_DRM_DW_HDMI_AHB_AUDIO=m CONFIG_DRM_DW_HDMI_CEC=m CONFIG_DRM_IMX_DCSS=m +CONFIG_DRM_V3D=m CONFIG_DRM_VC4=m CONFIG_DRM_ETNAVIV=m CONFIG_DRM_HISI_HIBMC=m diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c index e4dea8db6924..3f17c7b5bd78 100644 --- a/arch/arm64/kernel/acpi.c +++ b/arch/arm64/kernel/acpi.c @@ -41,7 +41,11 @@ int acpi_pci_disabled = 1; /* skip ACPI PCI scan and IRQ initialization */ EXPORT_SYMBOL(acpi_pci_disabled); static bool param_acpi_off __initdata; +#ifdef CONFIG_RHEL_DIFFERENCES +static bool param_acpi_on __initdata = true; +#else static bool param_acpi_on __initdata; +#endif static bool param_acpi_force __initdata; static int __init parse_acpi(char *arg) diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h index a405b6bb89fb..50827b341fd7 100644 --- a/arch/s390/include/asm/ipl.h +++ b/arch/s390/include/asm/ipl.h @@ -128,6 +128,7 @@ int ipl_report_add_component(struct ipl_report *report, struct kexec_buf *kbuf, unsigned char flags, unsigned short cert); int ipl_report_add_certificate(struct ipl_report *report, void *key, unsigned long addr, unsigned long len); +bool ipl_get_secureboot(void); /* * DIAG 308 support diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index 1cc85b8ff42e..b7ee128c67ce 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -2216,3 +2216,8 @@ int ipl_report_free(struct ipl_report *report) } #endif + +bool ipl_get_secureboot(void) +{ + return !!ipl_secure_flag; +} diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 0a37f5de2863..e2644fc7a172 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -49,6 +49,7 @@ #include #include #include +#include #include #include @@ -970,6 +971,9 @@ void __init setup_arch(char **cmdline_p) log_component_list(); + if (ipl_get_secureboot()) + security_lock_kernel_down("Secure IPL mode", LOCKDOWN_INTEGRITY_MAX); + /* Have one command line that is parsed and saved in /proc/cmdline */ /* boot_command_line has been already set up in early.c */ *cmdline_p = boot_command_line; diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 736262a76a12..4c410c845a8f 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1524,6 +1524,7 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c) cpu_detect(c); get_cpu_vendor(c); get_cpu_cap(c); + get_model_name(c); /* RHEL: get model name for unsupported check */ get_cpu_address_sizes(c); setup_force_cpu_cap(X86_FEATURE_CPUID); cpu_parse_early_param(); diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index bd6c6fd373ae..51a23f4931d8 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -51,6 +52,7 @@ #include #include #include +#include /* * max_low_pfn_mapped: highest directly mapped pfn < 4 GB @@ -732,6 +734,49 @@ static void __init early_reserve_memory(void) trim_snb_memory(); } +#ifdef CONFIG_RHEL_DIFFERENCES + +static void rh_check_supported(void) +{ + bool guest; + + guest = (x86_hyper_type != X86_HYPER_NATIVE || boot_cpu_has(X86_FEATURE_HYPERVISOR)); + + /* RHEL supports single cpu on guests only */ + if (((boot_cpu_data.x86_max_cores * smp_num_siblings) == 1) && + !guest && is_kdump_kernel()) { + pr_crit("Detected single cpu native boot.\n"); + pr_crit("Important: In this kernel, single threaded, single CPU 64-bit physical systems are unsupported."); + } + + /* + * If the RHEL kernel does not support this hardware, the kernel will + * attempt to boot, but no support is provided for this hardware + */ + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + case X86_VENDOR_INTEL: + break; + default: + pr_crit("Detected processor %s %s\n", + boot_cpu_data.x86_vendor_id, + boot_cpu_data.x86_model_id); + break; + } + + /* + * Due to the complexity of x86 lapic & ioapic enumeration, and PCI IRQ + * routing, ACPI is required for x86. acpi=off is a valid debug kernel + * parameter, so just print out a loud warning in case something + * goes wrong (which is most of the time). + */ + if (acpi_disabled && !guest) + pr_crit("ACPI has been disabled or is not available on this hardware. This may result in a single cpu boot, incorrect PCI IRQ routing, or boot failure.\n"); +} +#else +#define rh_check_supported() +#endif + /* * Dump out kernel offset information on panic. */ @@ -963,6 +1008,13 @@ void __init setup_arch(char **cmdline_p) if (efi_enabled(EFI_BOOT)) efi_init(); + efi_set_secure_boot(boot_params.secure_boot); + +#ifdef CONFIG_LOCK_DOWN_IN_EFI_SECURE_BOOT + if (efi_enabled(EFI_SECURE_BOOT)) + security_lock_kernel_down("EFI Secure Boot mode", LOCKDOWN_INTEGRITY_MAX); +#endif + dmi_setup(); /* @@ -1132,19 +1184,7 @@ void __init setup_arch(char **cmdline_p) /* Allocate bigger log buffer */ setup_log_buf(1); - if (efi_enabled(EFI_BOOT)) { - switch (boot_params.secure_boot) { - case efi_secureboot_mode_disabled: - pr_info("Secure boot disabled\n"); - break; - case efi_secureboot_mode_enabled: - pr_info("Secure boot enabled\n"); - break; - default: - pr_info("Secure boot could not be determined\n"); - break; - } - } + efi_set_secure_boot(boot_params.secure_boot); reserve_initrd(); @@ -1257,6 +1297,8 @@ void __init setup_arch(char **cmdline_p) efi_apply_memmap_quirks(); #endif + rh_check_supported(); + unwind_init(); } diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c index 6aef1ee5e1bd..8f146b1b4972 100644 --- a/drivers/acpi/apei/hest.c +++ b/drivers/acpi/apei/hest.c @@ -96,6 +96,14 @@ static int apei_hest_parse(apei_hest_func_t func, void *data) if (hest_disable || !hest_tab) return -EINVAL; +#ifdef CONFIG_ARM64 + /* Ignore broken firmware */ + if (!strncmp(hest_tab->header.oem_id, "HPE ", 6) && + !strncmp(hest_tab->header.oem_table_id, "ProLiant", 8) && + MIDR_IMPLEMENTOR(read_cpuid_id()) == ARM_CPU_IMP_APM) + return -EINVAL; +#endif + hest_hdr = (struct acpi_hest_header *)(hest_tab + 1); for (i = 0; i < hest_tab->error_source_count; i++) { len = hest_esrc_len(hest_hdr); diff --git a/drivers/acpi/irq.c b/drivers/acpi/irq.c index c68e694fca26..146cba5ae5bc 100644 --- a/drivers/acpi/irq.c +++ b/drivers/acpi/irq.c @@ -130,6 +130,7 @@ struct acpi_irq_parse_one_ctx { unsigned int index; unsigned long *res_flags; struct irq_fwspec *fwspec; + bool skip_producer_check; }; /** @@ -201,7 +202,8 @@ static acpi_status acpi_irq_parse_one_cb(struct acpi_resource *ares, return AE_CTRL_TERMINATE; case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: eirq = &ares->data.extended_irq; - if (eirq->producer_consumer == ACPI_PRODUCER) + if (!ctx->skip_producer_check && + eirq->producer_consumer == ACPI_PRODUCER) return AE_OK; if (ctx->index >= eirq->interrupt_count) { ctx->index -= eirq->interrupt_count; @@ -236,8 +238,19 @@ static acpi_status acpi_irq_parse_one_cb(struct acpi_resource *ares, static int acpi_irq_parse_one(acpi_handle handle, unsigned int index, struct irq_fwspec *fwspec, unsigned long *flags) { - struct acpi_irq_parse_one_ctx ctx = { -EINVAL, index, flags, fwspec }; + struct acpi_irq_parse_one_ctx ctx = { -EINVAL, index, flags, fwspec, false }; + /* + * Firmware on arm64-based HPE m400 platform incorrectly marks + * its UART interrupt as ACPI_PRODUCER rather than ACPI_CONSUMER. + * Don't do the producer/consumer check for that device. + */ + if (IS_ENABLED(CONFIG_ARM64)) { + struct acpi_device *adev = acpi_bus_get_acpi_device(handle); + + if (adev && !strcmp(acpi_device_hid(adev), "APMC0D08")) + ctx.skip_producer_check = true; + } acpi_walk_resources(handle, METHOD_NAME__CRS, acpi_irq_parse_one_cb, &ctx); return ctx.rc; } diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 762b61f67e6c..3581d4898dc4 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1766,6 +1766,15 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device) if (!acpi_match_device_ids(device, ignore_serial_bus_ids)) return false; + /* + * Firmware on some arm64 X-Gene platforms will make the UART + * device appear as both a UART and a slave of that UART. Just + * bail out here for X-Gene UARTs. + */ + if (IS_ENABLED(CONFIG_ARM64) && + !strcmp(acpi_device_hid(device), "APMC0D08")) + return false; + INIT_LIST_HEAD(&resource_list); acpi_dev_get_resources(device, &resource_list, acpi_check_serial_bus_slave, diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index cf8c7fd59ada..28a8189be64f 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -690,6 +690,24 @@ int ahci_stop_engine(struct ata_port *ap) tmp &= ~PORT_CMD_START; writel(tmp, port_mmio + PORT_CMD); +#ifdef CONFIG_ARM64 + /* Rev Ax of Cavium CN99XX needs a hack for port stop */ + if (dev_is_pci(ap->host->dev) && + to_pci_dev(ap->host->dev)->vendor == 0x14e4 && + to_pci_dev(ap->host->dev)->device == 0x9027 && + midr_is_cpu_model_range(read_cpuid_id(), + MIDR_CPU_MODEL(ARM_CPU_IMP_BRCM, BRCM_CPU_PART_VULCAN), + MIDR_CPU_VAR_REV(0, 0), + MIDR_CPU_VAR_REV(0, MIDR_REVISION_MASK))) { + tmp = readl(hpriv->mmio + 0x8000); + udelay(100); + writel(tmp | (1 << 26), hpriv->mmio + 0x8000); + udelay(100); + writel(tmp & ~(1 << 26), hpriv->mmio + 0x8000); + dev_warn(ap->host->dev, "CN99XX SATA reset workaround applied\n"); + } +#endif + /* wait for engine to stop. This could be as long as 500 msec */ tmp = ata_wait_register(ap, port_mmio + PORT_CMD, PORT_CMD_LIST_ON, PORT_CMD_LIST_ON, 1, 500); diff --git a/drivers/char/ipmi/ipmi_dmi.c b/drivers/char/ipmi/ipmi_dmi.c index bbf7029e224b..cf7faa970dd6 100644 --- a/drivers/char/ipmi/ipmi_dmi.c +++ b/drivers/char/ipmi/ipmi_dmi.c @@ -215,6 +215,21 @@ static int __init scan_for_dmi_ipmi(void) { const struct dmi_device *dev = NULL; +#ifdef CONFIG_ARM64 + /* RHEL-only + * If this is ARM-based HPE m400, return now, because that platform + * reports the host-side ipmi address as intel port-io space, which + * does not exist in the ARM architecture. + */ + const char *dmistr = dmi_get_system_info(DMI_PRODUCT_NAME); + + if (dmistr && (strcmp("ProLiant m400 Server", dmistr) == 0)) { + pr_debug("%s does not support host ipmi\n", dmistr); + return 0; + } + /* END RHEL-only */ +#endif + while ((dev = dmi_find_device(DMI_DEV_TYPE_IPMI, NULL, dev))) dmi_decode_ipmi((const struct dmi_header *) dev->device_data); diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index 703433493c85..6b1b102b9b7d 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -35,6 +35,7 @@ #include #include #include +#include #include #define IPMI_DRIVER_VERSION "39.2" @@ -5516,8 +5517,21 @@ static int __init ipmi_init_msghandler_mod(void) { int rv; - pr_info("version " IPMI_DRIVER_VERSION "\n"); +#ifdef CONFIG_ARM64 + /* RHEL-only + * If this is ARM-based HPE m400, return now, because that platform + * reports the host-side ipmi address as intel port-io space, which + * does not exist in the ARM architecture. + */ + const char *dmistr = dmi_get_system_info(DMI_PRODUCT_NAME); + if (dmistr && (strcmp("ProLiant m400 Server", dmistr) == 0)) { + pr_debug("%s does not support host ipmi\n", dmistr); + return -ENOSYS; + } + /* END RHEL-only */ +#endif + pr_info("version " IPMI_DRIVER_VERSION "\n"); mutex_lock(&ipmi_interfaces_mutex); rv = ipmi_register_driver(); mutex_unlock(&ipmi_interfaces_mutex); diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile index c02ff25dd477..d860f8eb9a81 100644 --- a/drivers/firmware/efi/Makefile +++ b/drivers/firmware/efi/Makefile @@ -28,6 +28,7 @@ obj-$(CONFIG_EFI_FAKE_MEMMAP) += fake_map.o obj-$(CONFIG_EFI_BOOTLOADER_CONTROL) += efibc.o obj-$(CONFIG_EFI_TEST) += test/ obj-$(CONFIG_EFI_DEV_PATH_PARSER) += dev-path-parser.o +obj-$(CONFIG_EFI) += secureboot.o obj-$(CONFIG_APPLE_PROPERTIES) += apple-properties.o obj-$(CONFIG_EFI_RCI2_TABLE) += rci2-table.o obj-$(CONFIG_EFI_EMBEDDED_FIRMWARE) += embedded-firmware.o diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c index 860534bcfdac..96548e72f5df 100644 --- a/drivers/firmware/efi/efi.c +++ b/drivers/firmware/efi/efi.c @@ -31,6 +31,7 @@ #include #include #include +#include #include @@ -862,40 +863,101 @@ int efi_mem_type(unsigned long phys_addr) } #endif +struct efi_error_code { + efi_status_t status; + int errno; + const char *description; +}; + +static const struct efi_error_code efi_error_codes[] = { + { EFI_SUCCESS, 0, "Success"}, +#if 0 + { EFI_LOAD_ERROR, -EPICK_AN_ERRNO, "Load Error"}, +#endif + { EFI_INVALID_PARAMETER, -EINVAL, "Invalid Parameter"}, + { EFI_UNSUPPORTED, -ENOSYS, "Unsupported"}, + { EFI_BAD_BUFFER_SIZE, -ENOSPC, "Bad Buffer Size"}, + { EFI_BUFFER_TOO_SMALL, -ENOSPC, "Buffer Too Small"}, + { EFI_NOT_READY, -EAGAIN, "Not Ready"}, + { EFI_DEVICE_ERROR, -EIO, "Device Error"}, + { EFI_WRITE_PROTECTED, -EROFS, "Write Protected"}, + { EFI_OUT_OF_RESOURCES, -ENOMEM, "Out of Resources"}, +#if 0 + { EFI_VOLUME_CORRUPTED, -EPICK_AN_ERRNO, "Volume Corrupt"}, + { EFI_VOLUME_FULL, -EPICK_AN_ERRNO, "Volume Full"}, + { EFI_NO_MEDIA, -EPICK_AN_ERRNO, "No Media"}, + { EFI_MEDIA_CHANGED, -EPICK_AN_ERRNO, "Media changed"}, +#endif + { EFI_NOT_FOUND, -ENOENT, "Not Found"}, +#if 0 + { EFI_ACCESS_DENIED, -EPICK_AN_ERRNO, "Access Denied"}, + { EFI_NO_RESPONSE, -EPICK_AN_ERRNO, "No Response"}, + { EFI_NO_MAPPING, -EPICK_AN_ERRNO, "No mapping"}, + { EFI_TIMEOUT, -EPICK_AN_ERRNO, "Time out"}, + { EFI_NOT_STARTED, -EPICK_AN_ERRNO, "Not started"}, + { EFI_ALREADY_STARTED, -EPICK_AN_ERRNO, "Already started"}, +#endif + { EFI_ABORTED, -EINTR, "Aborted"}, +#if 0 + { EFI_ICMP_ERROR, -EPICK_AN_ERRNO, "ICMP Error"}, + { EFI_TFTP_ERROR, -EPICK_AN_ERRNO, "TFTP Error"}, + { EFI_PROTOCOL_ERROR, -EPICK_AN_ERRNO, "Protocol Error"}, + { EFI_INCOMPATIBLE_VERSION, -EPICK_AN_ERRNO, "Incompatible Version"}, +#endif + { EFI_SECURITY_VIOLATION, -EACCES, "Security Policy Violation"}, +#if 0 + { EFI_CRC_ERROR, -EPICK_AN_ERRNO, "CRC Error"}, + { EFI_END_OF_MEDIA, -EPICK_AN_ERRNO, "End of Media"}, + { EFI_END_OF_FILE, -EPICK_AN_ERRNO, "End of File"}, + { EFI_INVALID_LANGUAGE, -EPICK_AN_ERRNO, "Invalid Languages"}, + { EFI_COMPROMISED_DATA, -EPICK_AN_ERRNO, "Compromised Data"}, + + // warnings + { EFI_WARN_UNKOWN_GLYPH, -EPICK_AN_ERRNO, "Warning Unknown Glyph"}, + { EFI_WARN_DELETE_FAILURE, -EPICK_AN_ERRNO, "Warning Delete Failure"}, + { EFI_WARN_WRITE_FAILURE, -EPICK_AN_ERRNO, "Warning Write Failure"}, + { EFI_WARN_BUFFER_TOO_SMALL, -EPICK_AN_ERRNO, "Warning Buffer Too Small"}, +#endif +}; + +static int +efi_status_cmp_bsearch(const void *key, const void *item) +{ + u64 status = (u64)(uintptr_t)key; + struct efi_error_code *code = (struct efi_error_code *)item; + + if (status < code->status) + return -1; + if (status > code->status) + return 1; + return 0; +} + int efi_status_to_err(efi_status_t status) { - int err; - - switch (status) { - case EFI_SUCCESS: - err = 0; - break; - case EFI_INVALID_PARAMETER: - err = -EINVAL; - break; - case EFI_OUT_OF_RESOURCES: - err = -ENOSPC; - break; - case EFI_DEVICE_ERROR: - err = -EIO; - break; - case EFI_WRITE_PROTECTED: - err = -EROFS; - break; - case EFI_SECURITY_VIOLATION: - err = -EACCES; - break; - case EFI_NOT_FOUND: - err = -ENOENT; - break; - case EFI_ABORTED: - err = -EINTR; - break; - default: - err = -EINVAL; - } + struct efi_error_code *found; + size_t num = sizeof(efi_error_codes) / sizeof(struct efi_error_code); - return err; + found = bsearch((void *)(uintptr_t)status, efi_error_codes, + sizeof(struct efi_error_code), num, + efi_status_cmp_bsearch); + if (!found) + return -EINVAL; + return found->errno; +} + +const char * +efi_status_to_str(efi_status_t status) +{ + struct efi_error_code *found; + size_t num = sizeof(efi_error_codes) / sizeof(struct efi_error_code); + + found = bsearch((void *)(uintptr_t)status, efi_error_codes, + sizeof(struct efi_error_code), num, + efi_status_cmp_bsearch); + if (!found) + return "Unknown error code"; + return found->description; } static DEFINE_SPINLOCK(efi_mem_reserve_persistent_lock); diff --git a/drivers/firmware/efi/secureboot.c b/drivers/firmware/efi/secureboot.c new file mode 100644 index 000000000000..de0a3714a5d4 --- /dev/null +++ b/drivers/firmware/efi/secureboot.c @@ -0,0 +1,38 @@ +/* Core kernel secure boot support. + * + * Copyright (C) 2017 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include + +/* + * Decide what to do when UEFI secure boot mode is enabled. + */ +void __init efi_set_secure_boot(enum efi_secureboot_mode mode) +{ + if (efi_enabled(EFI_BOOT)) { + switch (mode) { + case efi_secureboot_mode_disabled: + pr_info("Secure boot disabled\n"); + break; + case efi_secureboot_mode_enabled: + set_bit(EFI_SECURE_BOOT, &efi.flags); + pr_info("Secure boot enabled\n"); + break; + default: + pr_warn("Secure boot could not be determined (mode %u)\n", + mode); + break; + } + } +} diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index 51fcf1298023..7f1097947731 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -472,7 +472,13 @@ EXPORT_SYMBOL(drm_invalid_op); */ static int drm_copy_field(char __user *buf, size_t *buf_len, const char *value) { - int len; + size_t len; + + /* don't attempt to copy a NULL pointer */ + if (WARN_ONCE(!value, "BUG: the value to copy was not set!")) { + *buf_len = 0; + return 0; + } /* don't overflow userbuf */ len = strlen(value); diff --git a/drivers/gpu/drm/v3d/Kconfig b/drivers/gpu/drm/v3d/Kconfig index e973ec487484..ce62c5908e1d 100644 --- a/drivers/gpu/drm/v3d/Kconfig +++ b/drivers/gpu/drm/v3d/Kconfig @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0-only config DRM_V3D tristate "Broadcom V3D 3.x and newer" - depends on ARCH_BCM || ARCH_BRCMSTB || COMPILE_TEST + depends on ARCH_BCM || ARCH_BRCMSTB || ARCH_BCM2835 || COMPILE_TEST depends on DRM depends on COMMON_CLK depends on MMU @@ -9,4 +9,5 @@ config DRM_V3D select DRM_GEM_SHMEM_HELPER help Choose this option if you have a system that has a Broadcom - V3D 3.x or newer GPU, such as BCM7268. + V3D 3.x or newer GPUs. SoCs supported include the BCM2711, + BCM7268 and BCM7278. diff --git a/drivers/gpu/drm/v3d/v3d_debugfs.c b/drivers/gpu/drm/v3d/v3d_debugfs.c index 29fd13109e43..efbde124c296 100644 --- a/drivers/gpu/drm/v3d/v3d_debugfs.c +++ b/drivers/gpu/drm/v3d/v3d_debugfs.c @@ -4,7 +4,6 @@ #include #include #include -#include #include #include @@ -131,11 +130,7 @@ static int v3d_v3d_debugfs_ident(struct seq_file *m, void *unused) struct drm_device *dev = node->minor->dev; struct v3d_dev *v3d = to_v3d_dev(dev); u32 ident0, ident1, ident2, ident3, cores; - int ret, core; - - ret = pm_runtime_get_sync(v3d->drm.dev); - if (ret < 0) - return ret; + int core; ident0 = V3D_READ(V3D_HUB_IDENT0); ident1 = V3D_READ(V3D_HUB_IDENT1); @@ -188,9 +183,6 @@ static int v3d_v3d_debugfs_ident(struct seq_file *m, void *unused) (misccfg & V3D_MISCCFG_OVRTMUOUT) != 0); } - pm_runtime_mark_last_busy(v3d->drm.dev); - pm_runtime_put_autosuspend(v3d->drm.dev); - return 0; } @@ -218,11 +210,6 @@ static int v3d_measure_clock(struct seq_file *m, void *unused) uint32_t cycles; int core = 0; int measure_ms = 1000; - int ret; - - ret = pm_runtime_get_sync(v3d->drm.dev); - if (ret < 0) - return ret; if (v3d->ver >= 40) { V3D_CORE_WRITE(core, V3D_V4_PCTR_0_SRC_0_3, @@ -246,9 +233,6 @@ static int v3d_measure_clock(struct seq_file *m, void *unused) cycles / (measure_ms * 1000), (cycles / (measure_ms * 100)) % 10); - pm_runtime_mark_last_busy(v3d->drm.dev); - pm_runtime_put_autosuspend(v3d->drm.dev); - return 0; } diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c index 1afcd54fbbd5..8c7f910daa28 100644 --- a/drivers/gpu/drm/v3d/v3d_drv.c +++ b/drivers/gpu/drm/v3d/v3d_drv.c @@ -19,7 +19,6 @@ #include #include #include -#include #include #include @@ -43,7 +42,6 @@ static int v3d_get_param_ioctl(struct drm_device *dev, void *data, { struct v3d_dev *v3d = to_v3d_dev(dev); struct drm_v3d_get_param *args = data; - int ret; static const u32 reg_map[] = { [DRM_V3D_PARAM_V3D_UIFCFG] = V3D_HUB_UIFCFG, [DRM_V3D_PARAM_V3D_HUB_IDENT1] = V3D_HUB_IDENT1, @@ -69,17 +67,12 @@ static int v3d_get_param_ioctl(struct drm_device *dev, void *data, if (args->value != 0) return -EINVAL; - ret = pm_runtime_get_sync(v3d->drm.dev); - if (ret < 0) - return ret; if (args->param >= DRM_V3D_PARAM_V3D_CORE0_IDENT0 && args->param <= DRM_V3D_PARAM_V3D_CORE0_IDENT2) { args->value = V3D_CORE_READ(0, offset); } else { args->value = V3D_READ(offset); } - pm_runtime_mark_last_busy(v3d->drm.dev); - pm_runtime_put_autosuspend(v3d->drm.dev); return 0; } @@ -198,6 +191,7 @@ static const struct drm_driver v3d_drm_driver = { }; static const struct of_device_id v3d_of_match[] = { + { .compatible = "brcm,2711-v3d" }, { .compatible = "brcm,7268-v3d" }, { .compatible = "brcm,7278-v3d" }, {}, @@ -280,10 +274,6 @@ static int v3d_platform_drm_probe(struct platform_device *pdev) return -ENOMEM; } - pm_runtime_use_autosuspend(dev); - pm_runtime_set_autosuspend_delay(dev, 50); - pm_runtime_enable(dev); - ret = v3d_gem_init(drm); if (ret) goto dma_free; diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c index 2352e9640922..725a252e837b 100644 --- a/drivers/gpu/drm/v3d/v3d_gem.c +++ b/drivers/gpu/drm/v3d/v3d_gem.c @@ -6,7 +6,6 @@ #include #include #include -#include #include #include #include @@ -372,9 +371,6 @@ v3d_job_free(struct kref *ref) dma_fence_put(job->irq_fence); dma_fence_put(job->done_fence); - pm_runtime_mark_last_busy(job->v3d->drm.dev); - pm_runtime_put_autosuspend(job->v3d->drm.dev); - if (job->perfmon) v3d_perfmon_put(job->perfmon); @@ -476,14 +472,10 @@ v3d_job_init(struct v3d_dev *v3d, struct drm_file *file_priv, job->v3d = v3d; job->free = free; - ret = pm_runtime_get_sync(v3d->drm.dev); - if (ret < 0) - goto fail; - ret = drm_sched_job_init(&job->base, &v3d_priv->sched_entity[queue], v3d_priv); if (ret) - goto fail_job; + goto fail; if (has_multisync) { if (se->in_sync_count && se->wait_stage == queue) { @@ -514,8 +506,6 @@ v3d_job_init(struct v3d_dev *v3d, struct drm_file *file_priv, fail_deps: drm_sched_job_cleanup(&job->base); -fail_job: - pm_runtime_put_autosuspend(v3d->drm.dev); fail: kfree(*container); *container = NULL; diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c index 311eee599ce9..2460c6bd46f8 100644 --- a/drivers/hid/hid-rmi.c +++ b/drivers/hid/hid-rmi.c @@ -322,19 +322,12 @@ static int rmi_input_event(struct hid_device *hdev, u8 *data, int size) { struct rmi_data *hdata = hid_get_drvdata(hdev); struct rmi_device *rmi_dev = hdata->xport.rmi_dev; - unsigned long flags; if (!(test_bit(RMI_STARTED, &hdata->flags))) return 0; - local_irq_save(flags); - rmi_set_attn_data(rmi_dev, data[1], &data[2], size - 2); - generic_handle_irq(hdata->rmi_irq); - - local_irq_restore(flags); - return 1; } @@ -591,56 +584,6 @@ static const struct rmi_transport_ops hid_rmi_ops = { .reset = rmi_hid_reset, }; -static void rmi_irq_teardown(void *data) -{ - struct rmi_data *hdata = data; - struct irq_domain *domain = hdata->domain; - - if (!domain) - return; - - irq_dispose_mapping(irq_find_mapping(domain, 0)); - - irq_domain_remove(domain); - hdata->domain = NULL; - hdata->rmi_irq = 0; -} - -static int rmi_irq_map(struct irq_domain *h, unsigned int virq, - irq_hw_number_t hw_irq_num) -{ - irq_set_chip_and_handler(virq, &dummy_irq_chip, handle_simple_irq); - - return 0; -} - -static const struct irq_domain_ops rmi_irq_ops = { - .map = rmi_irq_map, -}; - -static int rmi_setup_irq_domain(struct hid_device *hdev) -{ - struct rmi_data *hdata = hid_get_drvdata(hdev); - int ret; - - hdata->domain = irq_domain_create_linear(hdev->dev.fwnode, 1, - &rmi_irq_ops, hdata); - if (!hdata->domain) - return -ENOMEM; - - ret = devm_add_action_or_reset(&hdev->dev, &rmi_irq_teardown, hdata); - if (ret) - return ret; - - hdata->rmi_irq = irq_create_mapping(hdata->domain, 0); - if (hdata->rmi_irq <= 0) { - hid_err(hdev, "Can't allocate an IRQ\n"); - return hdata->rmi_irq < 0 ? hdata->rmi_irq : -ENXIO; - } - - return 0; -} - static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id) { struct rmi_data *data = NULL; @@ -713,18 +656,11 @@ static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id) mutex_init(&data->page_mutex); - ret = rmi_setup_irq_domain(hdev); - if (ret) { - hid_err(hdev, "failed to allocate IRQ domain\n"); - return ret; - } - if (data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS) rmi_hid_pdata.gpio_data.disable = true; data->xport.dev = hdev->dev.parent; data->xport.pdata = rmi_hid_pdata; - data->xport.pdata.irq = data->rmi_irq; data->xport.proto_name = "hid"; data->xport.ops = &hid_rmi_ops; diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index 87299e99dabb..d37b689ad1bf 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include #include @@ -2123,6 +2124,16 @@ static const struct amba_id etm4_ids[] = { {}, }; +static const struct dmi_system_id broken_coresight[] = { + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "HPE"), + DMI_MATCH(DMI_PRODUCT_NAME, "Apollo 70"), + }, + }, + { } /* terminating entry */ +}; + MODULE_DEVICE_TABLE(amba, etm4_ids); static struct amba_driver etm4x_amba_driver = { @@ -2156,6 +2167,11 @@ static int __init etm4x_init(void) { int ret; + if (dmi_check_system(broken_coresight)) { + pr_info("ETM4 disabled due to firmware bug\n"); + return 0; + } + ret = etm4_pm_setup(); /* etm4_pm_setup() does its own cleanup - exit on error */ @@ -2182,6 +2198,9 @@ static int __init etm4x_init(void) static void __exit etm4x_exit(void) { + if (dmi_check_system(broken_coresight)) + return; + amba_driver_unregister(&etm4x_amba_driver); platform_driver_unregister(&etm4_platform_driver); etm4_pm_clear(); diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c index 258d5fe3d395..f7298e3dc8f3 100644 --- a/drivers/input/rmi4/rmi_driver.c +++ b/drivers/input/rmi4/rmi_driver.c @@ -182,34 +182,47 @@ void rmi_set_attn_data(struct rmi_device *rmi_dev, unsigned long irq_status, attn_data.data = fifo_data; kfifo_put(&drvdata->attn_fifo, attn_data); + + schedule_work(&drvdata->attn_work); } EXPORT_SYMBOL_GPL(rmi_set_attn_data); -static irqreturn_t rmi_irq_fn(int irq, void *dev_id) +static void attn_callback(struct work_struct *work) { - struct rmi_device *rmi_dev = dev_id; - struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev); + struct rmi_driver_data *drvdata = container_of(work, + struct rmi_driver_data, + attn_work); struct rmi4_attn_data attn_data = {0}; int ret, count; count = kfifo_get(&drvdata->attn_fifo, &attn_data); - if (count) { - *(drvdata->irq_status) = attn_data.irq_status; - drvdata->attn_data = attn_data; - } + if (!count) + return; - ret = rmi_process_interrupt_requests(rmi_dev); + *(drvdata->irq_status) = attn_data.irq_status; + drvdata->attn_data = attn_data; + + ret = rmi_process_interrupt_requests(drvdata->rmi_dev); if (ret) - rmi_dbg(RMI_DEBUG_CORE, &rmi_dev->dev, + rmi_dbg(RMI_DEBUG_CORE, &drvdata->rmi_dev->dev, "Failed to process interrupt request: %d\n", ret); - if (count) { - kfree(attn_data.data); - drvdata->attn_data.data = NULL; - } + kfree(attn_data.data); + drvdata->attn_data.data = NULL; if (!kfifo_is_empty(&drvdata->attn_fifo)) - return rmi_irq_fn(irq, dev_id); + schedule_work(&drvdata->attn_work); +} + +static irqreturn_t rmi_irq_fn(int irq, void *dev_id) +{ + struct rmi_device *rmi_dev = dev_id; + int ret; + + ret = rmi_process_interrupt_requests(rmi_dev); + if (ret) + rmi_dbg(RMI_DEBUG_CORE, &rmi_dev->dev, + "Failed to process interrupt request: %d\n", ret); return IRQ_HANDLED; } @@ -217,7 +230,6 @@ static irqreturn_t rmi_irq_fn(int irq, void *dev_id) static int rmi_irq_init(struct rmi_device *rmi_dev) { struct rmi_device_platform_data *pdata = rmi_get_platform_data(rmi_dev); - struct rmi_driver_data *data = dev_get_drvdata(&rmi_dev->dev); int irq_flags = irq_get_trigger_type(pdata->irq); int ret; @@ -235,8 +247,6 @@ static int rmi_irq_init(struct rmi_device *rmi_dev) return ret; } - data->enabled = true; - return 0; } @@ -886,23 +896,27 @@ void rmi_enable_irq(struct rmi_device *rmi_dev, bool clear_wake) if (data->enabled) goto out; - enable_irq(irq); - data->enabled = true; - if (clear_wake && device_may_wakeup(rmi_dev->xport->dev)) { - retval = disable_irq_wake(irq); - if (retval) - dev_warn(&rmi_dev->dev, - "Failed to disable irq for wake: %d\n", - retval); - } + if (irq) { + enable_irq(irq); + data->enabled = true; + if (clear_wake && device_may_wakeup(rmi_dev->xport->dev)) { + retval = disable_irq_wake(irq); + if (retval) + dev_warn(&rmi_dev->dev, + "Failed to disable irq for wake: %d\n", + retval); + } - /* - * Call rmi_process_interrupt_requests() after enabling irq, - * otherwise we may lose interrupt on edge-triggered systems. - */ - irq_flags = irq_get_trigger_type(pdata->irq); - if (irq_flags & IRQ_TYPE_EDGE_BOTH) - rmi_process_interrupt_requests(rmi_dev); + /* + * Call rmi_process_interrupt_requests() after enabling irq, + * otherwise we may lose interrupt on edge-triggered systems. + */ + irq_flags = irq_get_trigger_type(pdata->irq); + if (irq_flags & IRQ_TYPE_EDGE_BOTH) + rmi_process_interrupt_requests(rmi_dev); + } else { + data->enabled = true; + } out: mutex_unlock(&data->enabled_mutex); @@ -922,20 +936,22 @@ void rmi_disable_irq(struct rmi_device *rmi_dev, bool enable_wake) goto out; data->enabled = false; - disable_irq(irq); - if (enable_wake && device_may_wakeup(rmi_dev->xport->dev)) { - retval = enable_irq_wake(irq); - if (retval) - dev_warn(&rmi_dev->dev, - "Failed to enable irq for wake: %d\n", - retval); - } - - /* make sure the fifo is clean */ - while (!kfifo_is_empty(&data->attn_fifo)) { - count = kfifo_get(&data->attn_fifo, &attn_data); - if (count) - kfree(attn_data.data); + if (irq) { + disable_irq(irq); + if (enable_wake && device_may_wakeup(rmi_dev->xport->dev)) { + retval = enable_irq_wake(irq); + if (retval) + dev_warn(&rmi_dev->dev, + "Failed to enable irq for wake: %d\n", + retval); + } + } else { + /* make sure the fifo is clean */ + while (!kfifo_is_empty(&data->attn_fifo)) { + count = kfifo_get(&data->attn_fifo, &attn_data); + if (count) + kfree(attn_data.data); + } } out: @@ -981,6 +997,8 @@ static int rmi_driver_remove(struct device *dev) irq_domain_remove(data->irqdomain); data->irqdomain = NULL; + cancel_work_sync(&data->attn_work); + rmi_f34_remove_sysfs(rmi_dev); rmi_free_function_list(rmi_dev); @@ -1219,9 +1237,15 @@ static int rmi_driver_probe(struct device *dev) } } - retval = rmi_irq_init(rmi_dev); - if (retval < 0) - goto err_destroy_functions; + if (pdata->irq) { + retval = rmi_irq_init(rmi_dev); + if (retval < 0) + goto err_destroy_functions; + } + + data->enabled = true; + + INIT_WORK(&data->attn_work, attn_callback); if (data->f01_container->dev.driver) { /* Driver already bound, so enable ATTN now. */ diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 847ad47a2dfd..e5e545c80de7 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -7,6 +7,7 @@ #define pr_fmt(fmt) "iommu: " fmt #include +#include #include #include #include @@ -2856,6 +2857,27 @@ u32 iommu_sva_get_pasid(struct iommu_sva *handle) } EXPORT_SYMBOL_GPL(iommu_sva_get_pasid); +#ifdef CONFIG_ARM64 +static int __init iommu_quirks(void) +{ + const char *vendor, *name; + + vendor = dmi_get_system_info(DMI_SYS_VENDOR); + name = dmi_get_system_info(DMI_PRODUCT_NAME); + + if (vendor && + (strncmp(vendor, "GIGABYTE", 8) == 0 && name && + (strncmp(name, "R120", 4) == 0 || + strncmp(name, "R270", 4) == 0))) { + pr_warn("Gigabyte %s detected, force iommu passthrough mode", name); + iommu_def_domain_type = IOMMU_DOMAIN_IDENTITY; + } + + return 0; +} +arch_initcall(iommu_quirks); +#endif + /* * Changes the default domain of an iommu group that has *only* one device * diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c index 34901bcd1ce8..24194dbc2784 100644 --- a/drivers/message/fusion/mptsas.c +++ b/drivers/message/fusion/mptsas.c @@ -5320,6 +5320,11 @@ mptsas_probe(struct pci_dev *pdev, const struct pci_device_id *id) ioc, MPI_SAS_OP_CLEAR_ALL_PERSISTENT); } +#ifdef CONFIG_RHEL_DIFFERENCES + add_taint(TAINT_SUPPORT_REMOVED, LOCKDEP_STILL_OK); + pr_warn("MPTSAS MODULE IS NOT SUPPORTED\n"); +#endif + error = scsi_add_host(sh, &ioc->pcidev->dev); if (error) { dprintk(ioc, printk(MYIOC_s_ERR_FMT @@ -5383,6 +5388,10 @@ static void mptsas_remove(struct pci_dev *pdev) } static struct pci_device_id mptsas_pci_table[] = { +#ifdef CONFIG_RHEL_DIFFERENCES + { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1068, + PCI_VENDOR_ID_VMWARE, PCI_ANY_ID }, +#else { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1064, PCI_ANY_ID, PCI_ANY_ID }, { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1068, @@ -5395,6 +5404,7 @@ static struct pci_device_id mptsas_pci_table[] = { PCI_ANY_ID, PCI_ANY_ID }, { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1068_820XELP, PCI_ANY_ID, PCI_ANY_ID }, +#endif {0} /* Terminating entry */ }; MODULE_DEVICE_TABLE(pci, mptsas_pci_table); diff --git a/drivers/message/fusion/mptspi.c b/drivers/message/fusion/mptspi.c index 388675cc1765..8c7d0740efb6 100644 --- a/drivers/message/fusion/mptspi.c +++ b/drivers/message/fusion/mptspi.c @@ -1238,12 +1238,17 @@ static struct spi_function_template mptspi_transport_functions = { */ static struct pci_device_id mptspi_pci_table[] = { +#ifdef CONFIG_RHEL_DIFFERENCES + { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1030, + PCI_VENDOR_ID_VMWARE, PCI_ANY_ID }, +#else { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1030, PCI_ANY_ID, PCI_ANY_ID }, { PCI_VENDOR_ID_ATTO, MPI_MANUFACTPAGE_DEVID_53C1030, PCI_ANY_ID, PCI_ANY_ID }, { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1035, PCI_ANY_ID, PCI_ANY_ID }, +#endif {0} /* Terminating entry */ }; MODULE_DEVICE_TABLE(pci, mptspi_pci_table); @@ -1534,6 +1539,12 @@ mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id) 0, 0, 0, 0, 5); scsi_scan_host(sh); + +#ifdef CONFIG_RHEL_DIFFERENCES + add_taint(TAINT_SUPPORT_REMOVED, LOCKDEP_STILL_OK); + pr_warn("MPTSPI MODULE IS NOT SUPPORTED\n"); +#endif + return 0; out_mptspi_probe: diff --git a/drivers/mfd/bcm2835-pm.c b/drivers/mfd/bcm2835-pm.c index 42fe67f1538e..49cd1f03884a 100644 --- a/drivers/mfd/bcm2835-pm.c +++ b/drivers/mfd/bcm2835-pm.c @@ -25,9 +25,52 @@ static const struct mfd_cell bcm2835_power_devs[] = { { .name = "bcm2835-power" }, }; +static int bcm2835_pm_get_pdata(struct platform_device *pdev, + struct bcm2835_pm *pm) +{ + if (of_find_property(pm->dev->of_node, "reg-names", NULL)) { + struct resource *res; + + pm->base = devm_platform_ioremap_resource_byname(pdev, "pm"); + if (IS_ERR(pm->base)) + return PTR_ERR(pm->base); + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "asb"); + if (res) { + pm->asb = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(pm->asb)) + pm->asb = NULL; + } + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, + "rpivid_asb"); + if (res) { + pm->rpivid_asb = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(pm->rpivid_asb)) + pm->rpivid_asb = NULL; + } + + return 0; + } + + /* If no 'reg-names' property is found we can assume we're using old DTB. */ + pm->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(pm->base)) + return PTR_ERR(pm->base); + + pm->asb = devm_platform_ioremap_resource(pdev, 1); + if (IS_ERR(pm->asb)) + pm->asb = NULL; + + pm->rpivid_asb = devm_platform_ioremap_resource(pdev, 2); + if (IS_ERR(pm->rpivid_asb)) + pm->rpivid_asb = NULL; + + return 0; +} + static int bcm2835_pm_probe(struct platform_device *pdev) { - struct resource *res; struct device *dev = &pdev->dev; struct bcm2835_pm *pm; int ret; @@ -39,10 +82,9 @@ static int bcm2835_pm_probe(struct platform_device *pdev) pm->dev = dev; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - pm->base = devm_ioremap_resource(dev, res); - if (IS_ERR(pm->base)) - return PTR_ERR(pm->base); + ret = bcm2835_pm_get_pdata(pdev, pm); + if (ret) + return ret; ret = devm_mfd_add_devices(dev, -1, bcm2835_pm_devs, ARRAY_SIZE(bcm2835_pm_devs), @@ -50,30 +92,22 @@ static int bcm2835_pm_probe(struct platform_device *pdev) if (ret) return ret; - /* We'll use the presence of the AXI ASB regs in the + /* + * We'll use the presence of the AXI ASB regs in the * bcm2835-pm binding as the key for whether we can reference * the full PM register range and support power domains. */ - res = platform_get_resource(pdev, IORESOURCE_MEM, 1); - if (res) { - pm->asb = devm_ioremap_resource(dev, res); - if (IS_ERR(pm->asb)) - return PTR_ERR(pm->asb); - - ret = devm_mfd_add_devices(dev, -1, - bcm2835_power_devs, - ARRAY_SIZE(bcm2835_power_devs), - NULL, 0, NULL); - if (ret) - return ret; - } - + if (pm->asb) + return devm_mfd_add_devices(dev, -1, bcm2835_power_devs, + ARRAY_SIZE(bcm2835_power_devs), + NULL, 0, NULL); return 0; } static const struct of_device_id bcm2835_pm_of_match[] = { { .compatible = "brcm,bcm2835-pm-wdt", }, { .compatible = "brcm,bcm2835-pm", }, + { .compatible = "brcm,bcm2711-pm", }, {}, }; MODULE_DEVICE_TABLE(of, bcm2835_pm_of_match); diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index 9fee639ee5c8..4bb231013009 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig @@ -104,6 +104,8 @@ config AX88796B_PHY config BROADCOM_PHY tristate "Broadcom 54XX PHYs" select BCM_NET_PHYLIB + select BCM_NET_PHYPTP if NETWORK_PHY_TIMESTAMPING + depends on PTP_1588_CLOCK_OPTIONAL help Currently supports the BCM5411, BCM5421, BCM5461, BCM54616S, BCM5464, BCM5481, BCM54810 and BCM5482 PHYs. @@ -160,6 +162,9 @@ config BCM_CYGNUS_PHY config BCM_NET_PHYLIB tristate +config BCM_NET_PHYPTP + tristate + config CICADA_PHY tristate "Cicada PHYs" help diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile index b12b1d86fc99..f7138d3c896b 100644 --- a/drivers/net/phy/Makefile +++ b/drivers/net/phy/Makefile @@ -47,6 +47,7 @@ obj-$(CONFIG_BCM84881_PHY) += bcm84881.o obj-$(CONFIG_BCM87XX_PHY) += bcm87xx.o obj-$(CONFIG_BCM_CYGNUS_PHY) += bcm-cygnus.o obj-$(CONFIG_BCM_NET_PHYLIB) += bcm-phy-lib.o +obj-$(CONFIG_BCM_NET_PHYPTP) += bcm-phy-ptp.o obj-$(CONFIG_BROADCOM_PHY) += broadcom.o obj-$(CONFIG_CICADA_PHY) += cicada.o obj-$(CONFIG_CORTINA_PHY) += cortina.o diff --git a/drivers/net/phy/bcm-phy-lib.h b/drivers/net/phy/bcm-phy-lib.h index c3842f87c33b..9902fb182099 100644 --- a/drivers/net/phy/bcm-phy-lib.h +++ b/drivers/net/phy/bcm-phy-lib.h @@ -87,4 +87,23 @@ int bcm_phy_cable_test_start_rdb(struct phy_device *phydev); int bcm_phy_cable_test_start(struct phy_device *phydev); int bcm_phy_cable_test_get_status(struct phy_device *phydev, bool *finished); +#if IS_ENABLED(CONFIG_BCM_NET_PHYPTP) +struct bcm_ptp_private *bcm_ptp_probe(struct phy_device *phydev); +void bcm_ptp_config_init(struct phy_device *phydev); +void bcm_ptp_stop(struct bcm_ptp_private *priv); +#else +static inline struct bcm_ptp_private *bcm_ptp_probe(struct phy_device *phydev) +{ + return NULL; +} + +static inline void bcm_ptp_config_init(struct phy_device *phydev) +{ +} + +static inline void bcm_ptp_stop(struct bcm_ptp_private *priv) +{ +} +#endif + #endif /* _LINUX_BCM_PHY_LIB_H */ diff --git a/drivers/net/phy/bcm-phy-ptp.c b/drivers/net/phy/bcm-phy-ptp.c new file mode 100644 index 000000000000..ef00d6163061 --- /dev/null +++ b/drivers/net/phy/bcm-phy-ptp.c @@ -0,0 +1,944 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2022 Meta Platforms Inc. + * Copyright (C) 2022 Jonathan Lemon + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "bcm-phy-lib.h" + +/* IEEE 1588 Expansion registers */ +#define SLICE_CTRL 0x0810 +#define SLICE_TX_EN BIT(0) +#define SLICE_RX_EN BIT(8) +#define TX_EVENT_MODE 0x0811 +#define MODE_TX_UPDATE_CF BIT(0) +#define MODE_TX_REPLACE_TS_CF BIT(1) +#define MODE_TX_REPLACE_TS GENMASK(1, 0) +#define RX_EVENT_MODE 0x0819 +#define MODE_RX_UPDATE_CF BIT(0) +#define MODE_RX_INSERT_TS_48 BIT(1) +#define MODE_RX_INSERT_TS_64 GENMASK(1, 0) + +#define MODE_EVT_SHIFT_SYNC 0 +#define MODE_EVT_SHIFT_DELAY_REQ 2 +#define MODE_EVT_SHIFT_PDELAY_REQ 4 +#define MODE_EVT_SHIFT_PDELAY_RESP 6 + +#define MODE_SEL_SHIFT_PORT 0 +#define MODE_SEL_SHIFT_CPU 8 + +#define RX_MODE_SEL(sel, evt, act) \ + (((MODE_RX_##act) << (MODE_EVT_SHIFT_##evt)) << (MODE_SEL_SHIFT_##sel)) + +#define TX_MODE_SEL(sel, evt, act) \ + (((MODE_TX_##act) << (MODE_EVT_SHIFT_##evt)) << (MODE_SEL_SHIFT_##sel)) + +/* needs global TS capture first */ +#define TX_TS_CAPTURE 0x0821 +#define TX_TS_CAP_EN BIT(0) +#define RX_TS_CAPTURE 0x0822 +#define RX_TS_CAP_EN BIT(0) + +#define TIME_CODE_0 0x0854 +#define TIME_CODE_1 0x0855 +#define TIME_CODE_2 0x0856 +#define TIME_CODE_3 0x0857 +#define TIME_CODE_4 0x0858 + +#define DPLL_SELECT 0x085b +#define DPLL_HB_MODE2 BIT(6) + +#define SHADOW_CTRL 0x085c +#define SHADOW_LOAD 0x085d +#define TIME_CODE_LOAD BIT(10) +#define SYNC_OUT_LOAD BIT(9) +#define NCO_TIME_LOAD BIT(7) +#define FREQ_LOAD BIT(6) +#define INTR_MASK 0x085e +#define INTR_STATUS 0x085f +#define INTC_FSYNC BIT(0) +#define INTC_SOP BIT(1) + +#define NCO_FREQ_LSB 0x0873 +#define NCO_FREQ_MSB 0x0874 + +#define NCO_TIME_0 0x0875 +#define NCO_TIME_1 0x0876 +#define NCO_TIME_2_CTRL 0x0877 +#define FREQ_MDIO_SEL BIT(14) + +#define SYNC_OUT_0 0x0878 +#define SYNC_OUT_1 0x0879 +#define SYNC_OUT_2 0x087a + +#define SYNC_IN_DIVIDER 0x087b + +#define SYNOUT_TS_0 0x087c +#define SYNOUT_TS_1 0x087d +#define SYNOUT_TS_2 0x087e + +#define NSE_CTRL 0x087f +#define NSE_GMODE_EN GENMASK(15, 14) +#define NSE_CAPTURE_EN BIT(13) +#define NSE_INIT BIT(12) +#define NSE_CPU_FRAMESYNC BIT(5) +#define NSE_SYNC1_FRAMESYNC BIT(3) +#define NSE_FRAMESYNC_MASK GENMASK(5, 2) +#define NSE_PEROUT_EN BIT(1) +#define NSE_ONESHOT_EN BIT(0) +#define NSE_SYNC_OUT_MASK GENMASK(1, 0) + +#define TS_READ_CTRL 0x0885 +#define TS_READ_START BIT(0) +#define TS_READ_END BIT(1) + +#define HB_REG_0 0x0886 +#define HB_REG_1 0x0887 +#define HB_REG_2 0x0888 +#define HB_REG_3 0x08ec +#define HB_REG_4 0x08ed +#define HB_STAT_CTRL 0x088e +#define HB_READ_START BIT(10) +#define HB_READ_END BIT(11) +#define HB_READ_MASK GENMASK(11, 10) + +#define TS_REG_0 0x0889 +#define TS_REG_1 0x088a +#define TS_REG_2 0x088b +#define TS_REG_3 0x08c4 + +#define TS_INFO_0 0x088c +#define TS_INFO_1 0x088d + +#define TIMECODE_CTRL 0x08c3 +#define TX_TIMECODE_SEL GENMASK(7, 0) +#define RX_TIMECODE_SEL GENMASK(15, 8) + +#define TIME_SYNC 0x0ff5 +#define TIME_SYNC_EN BIT(0) + +struct bcm_ptp_private { + struct phy_device *phydev; + struct mii_timestamper mii_ts; + struct ptp_clock *ptp_clock; + struct ptp_clock_info ptp_info; + struct ptp_pin_desc pin; + struct mutex mutex; + struct sk_buff_head tx_queue; + int tx_type; + bool hwts_rx; + u16 nse_ctrl; + bool pin_active; + struct delayed_work pin_work; +}; + +struct bcm_ptp_skb_cb { + unsigned long timeout; + u16 seq_id; + u8 msgtype; + bool discard; +}; + +struct bcm_ptp_capture { + ktime_t hwtstamp; + u16 seq_id; + u8 msgtype; + bool tx_dir; +}; + +#define BCM_SKB_CB(skb) ((struct bcm_ptp_skb_cb *)(skb)->cb) +#define SKB_TS_TIMEOUT 10 /* jiffies */ + +#define BCM_MAX_PULSE_8NS ((1U << 9) - 1) +#define BCM_MAX_PERIOD_8NS ((1U << 30) - 1) + +#define BRCM_PHY_MODEL(phydev) \ + ((phydev)->drv->phy_id & (phydev)->drv->phy_id_mask) + +static struct bcm_ptp_private *mii2priv(struct mii_timestamper *mii_ts) +{ + return container_of(mii_ts, struct bcm_ptp_private, mii_ts); +} + +static struct bcm_ptp_private *ptp2priv(struct ptp_clock_info *info) +{ + return container_of(info, struct bcm_ptp_private, ptp_info); +} + +static void bcm_ptp_get_framesync_ts(struct phy_device *phydev, + struct timespec64 *ts) +{ + u16 hb[4]; + + bcm_phy_write_exp(phydev, HB_STAT_CTRL, HB_READ_START); + + hb[0] = bcm_phy_read_exp(phydev, HB_REG_0); + hb[1] = bcm_phy_read_exp(phydev, HB_REG_1); + hb[2] = bcm_phy_read_exp(phydev, HB_REG_2); + hb[3] = bcm_phy_read_exp(phydev, HB_REG_3); + + bcm_phy_write_exp(phydev, HB_STAT_CTRL, HB_READ_END); + bcm_phy_write_exp(phydev, HB_STAT_CTRL, 0); + + ts->tv_sec = (hb[3] << 16) | hb[2]; + ts->tv_nsec = (hb[1] << 16) | hb[0]; +} + +static u16 bcm_ptp_framesync_disable(struct phy_device *phydev, u16 orig_ctrl) +{ + u16 ctrl = orig_ctrl & ~(NSE_FRAMESYNC_MASK | NSE_CAPTURE_EN); + + bcm_phy_write_exp(phydev, NSE_CTRL, ctrl); + + return ctrl; +} + +static void bcm_ptp_framesync_restore(struct phy_device *phydev, u16 orig_ctrl) +{ + if (orig_ctrl & NSE_FRAMESYNC_MASK) + bcm_phy_write_exp(phydev, NSE_CTRL, orig_ctrl); +} + +static void bcm_ptp_framesync(struct phy_device *phydev, u16 ctrl) +{ + /* trigger framesync - must have 0->1 transition. */ + bcm_phy_write_exp(phydev, NSE_CTRL, ctrl | NSE_CPU_FRAMESYNC); +} + +static int bcm_ptp_framesync_ts(struct phy_device *phydev, + struct ptp_system_timestamp *sts, + struct timespec64 *ts, + u16 orig_ctrl) +{ + u16 ctrl, reg; + int i; + + ctrl = bcm_ptp_framesync_disable(phydev, orig_ctrl); + + ptp_read_system_prets(sts); + + /* trigger framesync + capture */ + bcm_ptp_framesync(phydev, ctrl | NSE_CAPTURE_EN); + + ptp_read_system_postts(sts); + + /* poll for FSYNC interrupt from TS capture */ + for (i = 0; i < 10; i++) { + reg = bcm_phy_read_exp(phydev, INTR_STATUS); + if (reg & INTC_FSYNC) { + bcm_ptp_get_framesync_ts(phydev, ts); + break; + } + } + + bcm_ptp_framesync_restore(phydev, orig_ctrl); + + return reg & INTC_FSYNC ? 0 : -ETIMEDOUT; +} + +static int bcm_ptp_gettimex(struct ptp_clock_info *info, + struct timespec64 *ts, + struct ptp_system_timestamp *sts) +{ + struct bcm_ptp_private *priv = ptp2priv(info); + int err; + + mutex_lock(&priv->mutex); + err = bcm_ptp_framesync_ts(priv->phydev, sts, ts, priv->nse_ctrl); + mutex_unlock(&priv->mutex); + + return err; +} + +static int bcm_ptp_settime_locked(struct bcm_ptp_private *priv, + const struct timespec64 *ts) +{ + struct phy_device *phydev = priv->phydev; + u16 ctrl; + u64 ns; + + ctrl = bcm_ptp_framesync_disable(phydev, priv->nse_ctrl); + + /* set up time code */ + bcm_phy_write_exp(phydev, TIME_CODE_0, ts->tv_nsec); + bcm_phy_write_exp(phydev, TIME_CODE_1, ts->tv_nsec >> 16); + bcm_phy_write_exp(phydev, TIME_CODE_2, ts->tv_sec); + bcm_phy_write_exp(phydev, TIME_CODE_3, ts->tv_sec >> 16); + bcm_phy_write_exp(phydev, TIME_CODE_4, ts->tv_sec >> 32); + + /* set NCO counter to match */ + ns = timespec64_to_ns(ts); + bcm_phy_write_exp(phydev, NCO_TIME_0, ns >> 4); + bcm_phy_write_exp(phydev, NCO_TIME_1, ns >> 20); + bcm_phy_write_exp(phydev, NCO_TIME_2_CTRL, (ns >> 36) & 0xfff); + + /* set up load on next frame sync (auto-clears due to NSE_INIT) */ + bcm_phy_write_exp(phydev, SHADOW_LOAD, TIME_CODE_LOAD | NCO_TIME_LOAD); + + /* must have NSE_INIT in order to write time code */ + bcm_ptp_framesync(phydev, ctrl | NSE_INIT); + + bcm_ptp_framesync_restore(phydev, priv->nse_ctrl); + + return 0; +} + +static int bcm_ptp_settime(struct ptp_clock_info *info, + const struct timespec64 *ts) +{ + struct bcm_ptp_private *priv = ptp2priv(info); + int err; + + mutex_lock(&priv->mutex); + err = bcm_ptp_settime_locked(priv, ts); + mutex_unlock(&priv->mutex); + + return err; +} + +static int bcm_ptp_adjtime_locked(struct bcm_ptp_private *priv, + s64 delta_ns) +{ + struct timespec64 ts; + int err; + s64 ns; + + err = bcm_ptp_framesync_ts(priv->phydev, NULL, &ts, priv->nse_ctrl); + if (!err) { + ns = timespec64_to_ns(&ts) + delta_ns; + ts = ns_to_timespec64(ns); + err = bcm_ptp_settime_locked(priv, &ts); + } + return err; +} + +static int bcm_ptp_adjtime(struct ptp_clock_info *info, s64 delta_ns) +{ + struct bcm_ptp_private *priv = ptp2priv(info); + int err; + + mutex_lock(&priv->mutex); + err = bcm_ptp_adjtime_locked(priv, delta_ns); + mutex_unlock(&priv->mutex); + + return err; +} + +/* A 125Mhz clock should adjust 8ns per pulse. + * The frequency adjustment base is 0x8000 0000, or 8*2^28. + * + * Frequency adjustment is + * adj = scaled_ppm * 8*2^28 / (10^6 * 2^16) + * which simplifies to: + * adj = scaled_ppm * 2^9 / 5^6 + */ +static int bcm_ptp_adjfine(struct ptp_clock_info *info, long scaled_ppm) +{ + struct bcm_ptp_private *priv = ptp2priv(info); + int neg_adj = 0; + u32 diff, freq; + u16 ctrl; + u64 adj; + + if (scaled_ppm < 0) { + neg_adj = 1; + scaled_ppm = -scaled_ppm; + } + + adj = scaled_ppm << 9; + diff = div_u64(adj, 15625); + freq = (8 << 28) + (neg_adj ? -diff : diff); + + mutex_lock(&priv->mutex); + + ctrl = bcm_ptp_framesync_disable(priv->phydev, priv->nse_ctrl); + + bcm_phy_write_exp(priv->phydev, NCO_FREQ_LSB, freq); + bcm_phy_write_exp(priv->phydev, NCO_FREQ_MSB, freq >> 16); + + bcm_phy_write_exp(priv->phydev, NCO_TIME_2_CTRL, FREQ_MDIO_SEL); + + /* load on next framesync */ + bcm_phy_write_exp(priv->phydev, SHADOW_LOAD, FREQ_LOAD); + + bcm_ptp_framesync(priv->phydev, ctrl); + + /* clear load */ + bcm_phy_write_exp(priv->phydev, SHADOW_LOAD, 0); + + bcm_ptp_framesync_restore(priv->phydev, priv->nse_ctrl); + + mutex_unlock(&priv->mutex); + + return 0; +} + +static bool bcm_ptp_rxtstamp(struct mii_timestamper *mii_ts, + struct sk_buff *skb, int type) +{ + struct bcm_ptp_private *priv = mii2priv(mii_ts); + struct skb_shared_hwtstamps *hwts; + struct ptp_header *header; + u32 sec, nsec; + u8 *data; + int off; + + if (!priv->hwts_rx) + return false; + + header = ptp_parse_header(skb, type); + if (!header) + return false; + + data = (u8 *)(header + 1); + sec = get_unaligned_be32(data); + nsec = get_unaligned_be32(data + 4); + + hwts = skb_hwtstamps(skb); + hwts->hwtstamp = ktime_set(sec, nsec); + + off = data - skb->data + 8; + if (off < skb->len) { + memmove(data, data + 8, skb->len - off); + __pskb_trim(skb, skb->len - 8); + } + + return false; +} + +static bool bcm_ptp_get_tstamp(struct bcm_ptp_private *priv, + struct bcm_ptp_capture *capts) +{ + struct phy_device *phydev = priv->phydev; + u16 ts[4], reg; + u32 sec, nsec; + + mutex_lock(&priv->mutex); + + reg = bcm_phy_read_exp(phydev, INTR_STATUS); + if ((reg & INTC_SOP) == 0) { + mutex_unlock(&priv->mutex); + return false; + } + + bcm_phy_write_exp(phydev, TS_READ_CTRL, TS_READ_START); + + ts[0] = bcm_phy_read_exp(phydev, TS_REG_0); + ts[1] = bcm_phy_read_exp(phydev, TS_REG_1); + ts[2] = bcm_phy_read_exp(phydev, TS_REG_2); + ts[3] = bcm_phy_read_exp(phydev, TS_REG_3); + + /* not in be32 format for some reason */ + capts->seq_id = bcm_phy_read_exp(priv->phydev, TS_INFO_0); + + reg = bcm_phy_read_exp(phydev, TS_INFO_1); + capts->msgtype = reg >> 12; + capts->tx_dir = !!(reg & BIT(11)); + + bcm_phy_write_exp(phydev, TS_READ_CTRL, TS_READ_END); + bcm_phy_write_exp(phydev, TS_READ_CTRL, 0); + + mutex_unlock(&priv->mutex); + + sec = (ts[3] << 16) | ts[2]; + nsec = (ts[1] << 16) | ts[0]; + capts->hwtstamp = ktime_set(sec, nsec); + + return true; +} + +static void bcm_ptp_match_tstamp(struct bcm_ptp_private *priv, + struct bcm_ptp_capture *capts) +{ + struct skb_shared_hwtstamps hwts; + struct sk_buff *skb, *ts_skb; + unsigned long flags; + bool first = false; + + ts_skb = NULL; + spin_lock_irqsave(&priv->tx_queue.lock, flags); + skb_queue_walk(&priv->tx_queue, skb) { + if (BCM_SKB_CB(skb)->seq_id == capts->seq_id && + BCM_SKB_CB(skb)->msgtype == capts->msgtype) { + first = skb_queue_is_first(&priv->tx_queue, skb); + __skb_unlink(skb, &priv->tx_queue); + ts_skb = skb; + break; + } + } + spin_unlock_irqrestore(&priv->tx_queue.lock, flags); + + /* TX captures one-step packets, discard them if needed. */ + if (ts_skb) { + if (BCM_SKB_CB(ts_skb)->discard) { + kfree_skb(ts_skb); + } else { + memset(&hwts, 0, sizeof(hwts)); + hwts.hwtstamp = capts->hwtstamp; + skb_complete_tx_timestamp(ts_skb, &hwts); + } + } + + /* not first match, try and expire entries */ + if (!first) { + while ((skb = skb_dequeue(&priv->tx_queue))) { + if (!time_after(jiffies, BCM_SKB_CB(skb)->timeout)) { + skb_queue_head(&priv->tx_queue, skb); + break; + } + kfree_skb(skb); + } + } +} + +static long bcm_ptp_do_aux_work(struct ptp_clock_info *info) +{ + struct bcm_ptp_private *priv = ptp2priv(info); + struct bcm_ptp_capture capts; + bool reschedule = false; + + while (!skb_queue_empty_lockless(&priv->tx_queue)) { + if (!bcm_ptp_get_tstamp(priv, &capts)) { + reschedule = true; + break; + } + bcm_ptp_match_tstamp(priv, &capts); + } + + return reschedule ? 1 : -1; +} + +static int bcm_ptp_cancel_func(struct bcm_ptp_private *priv) +{ + if (!priv->pin_active) + return 0; + + priv->pin_active = false; + + priv->nse_ctrl &= ~(NSE_SYNC_OUT_MASK | NSE_SYNC1_FRAMESYNC | + NSE_CAPTURE_EN); + bcm_phy_write_exp(priv->phydev, NSE_CTRL, priv->nse_ctrl); + + cancel_delayed_work_sync(&priv->pin_work); + + return 0; +} + +static void bcm_ptp_perout_work(struct work_struct *pin_work) +{ + struct bcm_ptp_private *priv = + container_of(pin_work, struct bcm_ptp_private, pin_work.work); + struct phy_device *phydev = priv->phydev; + struct timespec64 ts; + u64 ns, next; + u16 ctrl; + + mutex_lock(&priv->mutex); + + /* no longer running */ + if (!priv->pin_active) { + mutex_unlock(&priv->mutex); + return; + } + + bcm_ptp_framesync_ts(phydev, NULL, &ts, priv->nse_ctrl); + + /* this is 1PPS only */ + next = NSEC_PER_SEC - ts.tv_nsec; + ts.tv_sec += next < NSEC_PER_MSEC ? 2 : 1; + ts.tv_nsec = 0; + + ns = timespec64_to_ns(&ts); + + /* force 0->1 transition for ONESHOT */ + ctrl = bcm_ptp_framesync_disable(phydev, + priv->nse_ctrl & ~NSE_ONESHOT_EN); + + bcm_phy_write_exp(phydev, SYNOUT_TS_0, ns & 0xfff0); + bcm_phy_write_exp(phydev, SYNOUT_TS_1, ns >> 16); + bcm_phy_write_exp(phydev, SYNOUT_TS_2, ns >> 32); + + /* load values on next framesync */ + bcm_phy_write_exp(phydev, SHADOW_LOAD, SYNC_OUT_LOAD); + + bcm_ptp_framesync(phydev, ctrl | NSE_ONESHOT_EN | NSE_INIT); + + priv->nse_ctrl |= NSE_ONESHOT_EN; + bcm_ptp_framesync_restore(phydev, priv->nse_ctrl); + + mutex_unlock(&priv->mutex); + + next = next + NSEC_PER_MSEC; + schedule_delayed_work(&priv->pin_work, nsecs_to_jiffies(next)); +} + +static int bcm_ptp_perout_locked(struct bcm_ptp_private *priv, + struct ptp_perout_request *req, int on) +{ + struct phy_device *phydev = priv->phydev; + u64 period, pulse; + u16 val; + + if (!on) + return bcm_ptp_cancel_func(priv); + + /* 1PPS */ + if (req->period.sec != 1 || req->period.nsec != 0) + return -EINVAL; + + period = BCM_MAX_PERIOD_8NS; /* write nonzero value */ + + if (req->flags & PTP_PEROUT_PHASE) + return -EOPNOTSUPP; + + if (req->flags & PTP_PEROUT_DUTY_CYCLE) + pulse = ktime_to_ns(ktime_set(req->on.sec, req->on.nsec)); + else + pulse = (u64)BCM_MAX_PULSE_8NS << 3; + + /* convert to 8ns units */ + pulse >>= 3; + + if (!pulse || pulse > period || pulse > BCM_MAX_PULSE_8NS) + return -EINVAL; + + bcm_phy_write_exp(phydev, SYNC_OUT_0, period); + + val = ((pulse & 0x3) << 14) | ((period >> 16) & 0x3fff); + bcm_phy_write_exp(phydev, SYNC_OUT_1, val); + + val = ((pulse >> 2) & 0x7f) | (pulse << 7); + bcm_phy_write_exp(phydev, SYNC_OUT_2, val); + + if (priv->pin_active) + cancel_delayed_work_sync(&priv->pin_work); + + priv->pin_active = true; + INIT_DELAYED_WORK(&priv->pin_work, bcm_ptp_perout_work); + schedule_delayed_work(&priv->pin_work, 0); + + return 0; +} + +static void bcm_ptp_extts_work(struct work_struct *pin_work) +{ + struct bcm_ptp_private *priv = + container_of(pin_work, struct bcm_ptp_private, pin_work.work); + struct phy_device *phydev = priv->phydev; + struct ptp_clock_event event; + struct timespec64 ts; + u16 reg; + + mutex_lock(&priv->mutex); + + /* no longer running */ + if (!priv->pin_active) { + mutex_unlock(&priv->mutex); + return; + } + + reg = bcm_phy_read_exp(phydev, INTR_STATUS); + if ((reg & INTC_FSYNC) == 0) + goto out; + + bcm_ptp_get_framesync_ts(phydev, &ts); + + event.index = 0; + event.type = PTP_CLOCK_EXTTS; + event.timestamp = timespec64_to_ns(&ts); + ptp_clock_event(priv->ptp_clock, &event); + +out: + mutex_unlock(&priv->mutex); + schedule_delayed_work(&priv->pin_work, HZ / 4); +} + +static int bcm_ptp_extts_locked(struct bcm_ptp_private *priv, int on) +{ + struct phy_device *phydev = priv->phydev; + + if (!on) + return bcm_ptp_cancel_func(priv); + + if (priv->pin_active) + cancel_delayed_work_sync(&priv->pin_work); + + bcm_ptp_framesync_disable(phydev, priv->nse_ctrl); + + priv->nse_ctrl |= NSE_SYNC1_FRAMESYNC | NSE_CAPTURE_EN; + + bcm_ptp_framesync_restore(phydev, priv->nse_ctrl); + + priv->pin_active = true; + INIT_DELAYED_WORK(&priv->pin_work, bcm_ptp_extts_work); + schedule_delayed_work(&priv->pin_work, 0); + + return 0; +} + +static int bcm_ptp_enable(struct ptp_clock_info *info, + struct ptp_clock_request *rq, int on) +{ + struct bcm_ptp_private *priv = ptp2priv(info); + int err = -EBUSY; + + mutex_lock(&priv->mutex); + + switch (rq->type) { + case PTP_CLK_REQ_PEROUT: + if (priv->pin.func == PTP_PF_PEROUT) + err = bcm_ptp_perout_locked(priv, &rq->perout, on); + break; + case PTP_CLK_REQ_EXTTS: + if (priv->pin.func == PTP_PF_EXTTS) + err = bcm_ptp_extts_locked(priv, on); + break; + default: + err = -EOPNOTSUPP; + break; + } + + mutex_unlock(&priv->mutex); + + return err; +} + +static int bcm_ptp_verify(struct ptp_clock_info *info, unsigned int pin, + enum ptp_pin_function func, unsigned int chan) +{ + switch (func) { + case PTP_PF_NONE: + case PTP_PF_EXTTS: + case PTP_PF_PEROUT: + break; + default: + return -EOPNOTSUPP; + } + return 0; +} + +static const struct ptp_clock_info bcm_ptp_clock_info = { + .owner = THIS_MODULE, + .name = KBUILD_MODNAME, + .max_adj = 100000000, + .gettimex64 = bcm_ptp_gettimex, + .settime64 = bcm_ptp_settime, + .adjtime = bcm_ptp_adjtime, + .adjfine = bcm_ptp_adjfine, + .enable = bcm_ptp_enable, + .verify = bcm_ptp_verify, + .do_aux_work = bcm_ptp_do_aux_work, + .n_pins = 1, + .n_per_out = 1, + .n_ext_ts = 1, +}; + +static void bcm_ptp_txtstamp(struct mii_timestamper *mii_ts, + struct sk_buff *skb, int type) +{ + struct bcm_ptp_private *priv = mii2priv(mii_ts); + struct ptp_header *hdr; + bool discard = false; + int msgtype; + + hdr = ptp_parse_header(skb, type); + if (!hdr) + goto out; + msgtype = ptp_get_msgtype(hdr, type); + + switch (priv->tx_type) { + case HWTSTAMP_TX_ONESTEP_P2P: + if (msgtype == PTP_MSGTYPE_PDELAY_RESP) + discard = true; + fallthrough; + case HWTSTAMP_TX_ONESTEP_SYNC: + if (msgtype == PTP_MSGTYPE_SYNC) + discard = true; + fallthrough; + case HWTSTAMP_TX_ON: + BCM_SKB_CB(skb)->timeout = jiffies + SKB_TS_TIMEOUT; + BCM_SKB_CB(skb)->seq_id = be16_to_cpu(hdr->sequence_id); + BCM_SKB_CB(skb)->msgtype = msgtype; + BCM_SKB_CB(skb)->discard = discard; + skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; + skb_queue_tail(&priv->tx_queue, skb); + ptp_schedule_worker(priv->ptp_clock, 0); + return; + default: + break; + } + +out: + kfree_skb(skb); +} + +static int bcm_ptp_hwtstamp(struct mii_timestamper *mii_ts, + struct ifreq *ifr) +{ + struct bcm_ptp_private *priv = mii2priv(mii_ts); + struct hwtstamp_config cfg; + u16 mode, ctrl; + + if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg))) + return -EFAULT; + + switch (cfg.rx_filter) { + case HWTSTAMP_FILTER_NONE: + priv->hwts_rx = false; + break; + case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: + case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: + case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: + case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: + case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: + case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: + case HWTSTAMP_FILTER_PTP_V2_EVENT: + case HWTSTAMP_FILTER_PTP_V2_SYNC: + case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: + cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT; + priv->hwts_rx = true; + break; + default: + return -ERANGE; + } + + priv->tx_type = cfg.tx_type; + + ctrl = priv->hwts_rx ? SLICE_RX_EN : 0; + ctrl |= priv->tx_type != HWTSTAMP_TX_OFF ? SLICE_TX_EN : 0; + + mode = TX_MODE_SEL(PORT, SYNC, REPLACE_TS) | + TX_MODE_SEL(PORT, DELAY_REQ, REPLACE_TS) | + TX_MODE_SEL(PORT, PDELAY_REQ, REPLACE_TS) | + TX_MODE_SEL(PORT, PDELAY_RESP, REPLACE_TS); + + bcm_phy_write_exp(priv->phydev, TX_EVENT_MODE, mode); + + mode = RX_MODE_SEL(PORT, SYNC, INSERT_TS_64) | + RX_MODE_SEL(PORT, DELAY_REQ, INSERT_TS_64) | + RX_MODE_SEL(PORT, PDELAY_REQ, INSERT_TS_64) | + RX_MODE_SEL(PORT, PDELAY_RESP, INSERT_TS_64); + + bcm_phy_write_exp(priv->phydev, RX_EVENT_MODE, mode); + + bcm_phy_write_exp(priv->phydev, SLICE_CTRL, ctrl); + + if (ctrl & SLICE_TX_EN) + bcm_phy_write_exp(priv->phydev, TX_TS_CAPTURE, TX_TS_CAP_EN); + else + ptp_cancel_worker_sync(priv->ptp_clock); + + /* purge existing data */ + skb_queue_purge(&priv->tx_queue); + + return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0; +} + +static int bcm_ptp_ts_info(struct mii_timestamper *mii_ts, + struct ethtool_ts_info *ts_info) +{ + struct bcm_ptp_private *priv = mii2priv(mii_ts); + + ts_info->phc_index = ptp_clock_index(priv->ptp_clock); + ts_info->so_timestamping = + SOF_TIMESTAMPING_TX_HARDWARE | + SOF_TIMESTAMPING_RX_HARDWARE | + SOF_TIMESTAMPING_RAW_HARDWARE; + ts_info->tx_types = + BIT(HWTSTAMP_TX_ON) | + BIT(HWTSTAMP_TX_OFF) | + BIT(HWTSTAMP_TX_ONESTEP_SYNC) | + BIT(HWTSTAMP_TX_ONESTEP_P2P); + ts_info->rx_filters = + BIT(HWTSTAMP_FILTER_NONE) | + BIT(HWTSTAMP_FILTER_PTP_V2_EVENT); + + return 0; +} + +void bcm_ptp_stop(struct bcm_ptp_private *priv) +{ + ptp_cancel_worker_sync(priv->ptp_clock); + bcm_ptp_cancel_func(priv); +} +EXPORT_SYMBOL_GPL(bcm_ptp_stop); + +void bcm_ptp_config_init(struct phy_device *phydev) +{ + /* init network sync engine */ + bcm_phy_write_exp(phydev, NSE_CTRL, NSE_GMODE_EN | NSE_INIT); + + /* enable time sync (TX/RX SOP capture) */ + bcm_phy_write_exp(phydev, TIME_SYNC, TIME_SYNC_EN); + + /* use sec.nsec heartbeat capture */ + bcm_phy_write_exp(phydev, DPLL_SELECT, DPLL_HB_MODE2); + + /* use 64 bit timecode for TX */ + bcm_phy_write_exp(phydev, TIMECODE_CTRL, TX_TIMECODE_SEL); + + /* always allow FREQ_LOAD on framesync */ + bcm_phy_write_exp(phydev, SHADOW_CTRL, FREQ_LOAD); + + bcm_phy_write_exp(phydev, SYNC_IN_DIVIDER, 1); +} +EXPORT_SYMBOL_GPL(bcm_ptp_config_init); + +static void bcm_ptp_init(struct bcm_ptp_private *priv) +{ + priv->nse_ctrl = NSE_GMODE_EN; + + mutex_init(&priv->mutex); + skb_queue_head_init(&priv->tx_queue); + + priv->mii_ts.rxtstamp = bcm_ptp_rxtstamp; + priv->mii_ts.txtstamp = bcm_ptp_txtstamp; + priv->mii_ts.hwtstamp = bcm_ptp_hwtstamp; + priv->mii_ts.ts_info = bcm_ptp_ts_info; + + priv->phydev->mii_ts = &priv->mii_ts; +} + +struct bcm_ptp_private *bcm_ptp_probe(struct phy_device *phydev) +{ + struct bcm_ptp_private *priv; + struct ptp_clock *clock; + + switch (BRCM_PHY_MODEL(phydev)) { + case PHY_ID_BCM54210E: + break; + default: + return NULL; + } + + priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return ERR_PTR(-ENOMEM); + + priv->ptp_info = bcm_ptp_clock_info; + + snprintf(priv->pin.name, sizeof(priv->pin.name), "SYNC_OUT"); + priv->ptp_info.pin_config = &priv->pin; + + clock = ptp_clock_register(&priv->ptp_info, &phydev->mdio.dev); + if (IS_ERR(clock)) + return ERR_CAST(clock); + priv->ptp_clock = clock; + + priv->phydev = phydev; + bcm_ptp_init(priv); + + return priv; +} +EXPORT_SYMBOL_GPL(bcm_ptp_probe); + +MODULE_LICENSE("GPL"); diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c index e36809aa6d30..876bc45ede60 100644 --- a/drivers/net/phy/broadcom.c +++ b/drivers/net/phy/broadcom.c @@ -27,6 +27,11 @@ MODULE_DESCRIPTION("Broadcom PHY driver"); MODULE_AUTHOR("Maciej W. Rozycki"); MODULE_LICENSE("GPL"); +struct bcm54xx_phy_priv { + u64 *stats; + struct bcm_ptp_private *ptp; +}; + static int bcm54xx_config_clock_delay(struct phy_device *phydev) { int rc, val; @@ -313,6 +318,22 @@ static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev) bcm_phy_write_shadow(phydev, BCM54XX_SHD_APD, val); } +static void bcm54xx_ptp_stop(struct phy_device *phydev) +{ + struct bcm54xx_phy_priv *priv = phydev->priv; + + if (priv->ptp) + bcm_ptp_stop(priv->ptp); +} + +static void bcm54xx_ptp_config_init(struct phy_device *phydev) +{ + struct bcm54xx_phy_priv *priv = phydev->priv; + + if (priv->ptp) + bcm_ptp_config_init(phydev); +} + static int bcm54xx_config_init(struct phy_device *phydev) { int reg, err, val; @@ -390,6 +411,8 @@ static int bcm54xx_config_init(struct phy_device *phydev) bcm_phy_write_exp(phydev, BCM_EXP_MULTICOLOR, val); } + bcm54xx_ptp_config_init(phydev); + return 0; } @@ -418,6 +441,8 @@ static int bcm54xx_suspend(struct phy_device *phydev) { int ret; + bcm54xx_ptp_stop(phydev); + /* We cannot use a read/modify/write here otherwise the PHY gets into * a bad state where its LEDs keep flashing, thus defeating the purpose * of low power mode. @@ -741,10 +766,6 @@ static irqreturn_t brcm_fet_handle_interrupt(struct phy_device *phydev) return IRQ_HANDLED; } -struct bcm54xx_phy_priv { - u64 *stats; -}; - static int bcm54xx_phy_probe(struct phy_device *phydev) { struct bcm54xx_phy_priv *priv; @@ -761,6 +782,10 @@ static int bcm54xx_phy_probe(struct phy_device *phydev) if (!priv->stats) return -ENOMEM; + priv->ptp = bcm_ptp_probe(phydev); + if (IS_ERR(priv->ptp)) + return PTR_ERR(priv->ptp); + return 0; } diff --git a/drivers/net/wireguard/main.c b/drivers/net/wireguard/main.c index ee4da9ab8013..d395d11eadc4 100644 --- a/drivers/net/wireguard/main.c +++ b/drivers/net/wireguard/main.c @@ -12,6 +12,7 @@ #include +#include #include #include #include @@ -21,6 +22,11 @@ static int __init wg_mod_init(void) { int ret; +#ifdef CONFIG_RHEL_DIFFERENCES + if (fips_enabled) + return -EOPNOTSUPP; +#endif + ret = wg_allowedips_slab_init(); if (ret < 0) goto err_allowedips; diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 6a12a906a11e..463bcb0b62cd 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -240,6 +240,9 @@ static void nvme_delete_ctrl_sync(struct nvme_ctrl *ctrl) static blk_status_t nvme_error_status(u16 status) { + if (unlikely(status & NVME_SC_DNR)) + return BLK_STS_TARGET; + switch (status & 0x7ff) { case NVME_SC_SUCCESS: return BLK_STS_OK; @@ -330,6 +333,7 @@ enum nvme_disposition { COMPLETE, RETRY, FAILOVER, + FAILUP, }; static inline enum nvme_disposition nvme_decide_disposition(struct request *req) @@ -337,15 +341,16 @@ static inline enum nvme_disposition nvme_decide_disposition(struct request *req) if (likely(nvme_req(req)->status == 0)) return COMPLETE; - if (blk_noretry_request(req) || + if ((req->cmd_flags & (REQ_FAILFAST_DEV | REQ_FAILFAST_DRIVER)) || (nvme_req(req)->status & NVME_SC_DNR) || nvme_req(req)->retries >= nvme_max_retries) return COMPLETE; - if (req->cmd_flags & REQ_NVME_MPATH) { + if (req->cmd_flags & (REQ_NVME_MPATH | REQ_FAILFAST_TRANSPORT)) { if (nvme_is_path_error(nvme_req(req)->status) || blk_queue_dying(req->q)) - return FAILOVER; + return (req->cmd_flags & REQ_NVME_MPATH) ? + FAILOVER : FAILUP; } else { if (blk_queue_dying(req->q)) return COMPLETE; @@ -373,6 +378,14 @@ static inline void nvme_end_req(struct request *req) blk_mq_end_request(req, status); } +static inline void nvme_failup_req(struct request *req) +{ + nvme_update_ana(req); + + nvme_req(req)->status = NVME_SC_HOST_PATH_ERROR; + nvme_end_req(req); +} + void nvme_complete_rq(struct request *req) { trace_nvme_complete_rq(req); @@ -391,6 +404,9 @@ void nvme_complete_rq(struct request *req) case FAILOVER: nvme_failover_req(req); return; + case FAILUP: + nvme_failup_req(req); + return; } } EXPORT_SYMBOL_GPL(nvme_complete_rq); diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c index d3e2440d8abb..da01ce9c9542 100644 --- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -80,14 +80,10 @@ void nvme_mpath_start_freeze(struct nvme_subsystem *subsys) blk_freeze_queue_start(h->disk->queue); } -void nvme_failover_req(struct request *req) +void nvme_update_ana(struct request *req) { struct nvme_ns *ns = req->q->queuedata; u16 status = nvme_req(req)->status & 0x7ff; - unsigned long flags; - struct bio *bio; - - nvme_mpath_clear_current_path(ns); /* * If we got back an ANA error, we know the controller is alive but not @@ -98,6 +94,16 @@ void nvme_failover_req(struct request *req) set_bit(NVME_NS_ANA_PENDING, &ns->flags); queue_work(nvme_wq, &ns->ctrl->ana_work); } +} + +void nvme_failover_req(struct request *req) +{ + struct nvme_ns *ns = req->q->queuedata; + unsigned long flags; + struct bio *bio; + + nvme_mpath_clear_current_path(ns); + nvme_update_ana(req); spin_lock_irqsave(&ns->head->requeue_lock, flags); for (bio = req->bio; bio; bio = bio->bi_next) { @@ -870,8 +876,7 @@ int nvme_mpath_init_identify(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id) int error = 0; /* check if multipath is enabled and we have the capability */ - if (!multipath || !ctrl->subsys || - !(ctrl->subsys->cmic & NVME_CTRL_CMIC_ANA)) + if (!ctrl->subsys || !(ctrl->subsys->cmic & NVME_CTRL_CMIC_ANA)) return 0; if (!ctrl->max_namespaces || diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 5558f8812157..dc8fd8da85da 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -835,6 +835,7 @@ void nvme_mpath_wait_freeze(struct nvme_subsystem *subsys); void nvme_mpath_start_freeze(struct nvme_subsystem *subsys); void nvme_mpath_default_iopolicy(struct nvme_subsystem *subsys); void nvme_failover_req(struct request *req); +void nvme_update_ana(struct request *req); void nvme_kick_requeue_lists(struct nvme_ctrl *ctrl); int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl,struct nvme_ns_head *head); void nvme_mpath_add_disk(struct nvme_ns *ns, struct nvme_id_ns *id); @@ -871,6 +872,9 @@ static inline bool nvme_ctrl_use_ana(struct nvme_ctrl *ctrl) static inline void nvme_failover_req(struct request *req) { } +static inline void nvme_update_ana(struct request *req) +{ +} static inline void nvme_kick_requeue_lists(struct nvme_ctrl *ctrl) { } diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 49238ddd39ee..7c32d338542f 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include "pci.h" @@ -296,6 +297,83 @@ static struct attribute *pci_drv_attrs[] = { }; ATTRIBUTE_GROUPS(pci_drv); +#ifdef CONFIG_RHEL_DIFFERENCES +/** + * pci_hw_deprecated - Tell if a PCI device is deprecated + * @ids: array of PCI device id structures to search in + * @dev: the PCI device structure to match against + * + * Used by a driver to check whether this device is in its list of deprecated + * devices. Returns the matching pci_device_id structure or %NULL if there is + * no match. + * + * Reserved for Internal Red Hat use only. + */ +const struct pci_device_id *pci_hw_deprecated(const struct pci_device_id *ids, + struct pci_dev *dev) +{ + const struct pci_device_id *ret = pci_match_id(ids, dev); + + if (!ret) + return NULL; + + mark_hardware_deprecated(dev_driver_string(&dev->dev), "%04X:%04X @ %s", + dev->device, dev->vendor, pci_name(dev)); + return ret; +} +EXPORT_SYMBOL(pci_hw_deprecated); + +/** + * pci_hw_unmaintained - Tell if a PCI device is unmaintained + * @ids: array of PCI device id structures to search in + * @dev: the PCI device structure to match against + * + * Used by a driver to check whether this device is in its list of unmaintained + * devices. Returns the matching pci_device_id structure or %NULL if there is + * no match. + * + * Reserved for Internal Red Hat use only. + */ +const struct pci_device_id *pci_hw_unmaintained(const struct pci_device_id *ids, + struct pci_dev *dev) +{ + const struct pci_device_id *ret = pci_match_id(ids, dev); + + if (!ret) + return NULL; + + mark_hardware_unmaintained(dev_driver_string(&dev->dev), "%04X:%04X @ %s", + dev->device, dev->vendor, pci_name(dev)); + return ret; +} +EXPORT_SYMBOL(pci_hw_unmaintained); + +/** + * pci_hw_disabled - Tell if a PCI device is disabled + * @ids: array of PCI device id structures to search in + * @dev: the PCI device structure to match against + * + * Used by a driver to check whether this device is in its list of disabled + * devices. Returns the matching pci_device_id structure or %NULL if there is + * no match. + * + * Reserved for Internal Red Hat use only. + */ +const struct pci_device_id *pci_hw_disabled(const struct pci_device_id *ids, + struct pci_dev *dev) +{ + const struct pci_device_id *ret = pci_match_id(ids, dev); + + if (!ret) + return NULL; + + mark_hardware_disabled(dev_driver_string(&dev->dev), "%04X:%04X @ %s", + dev->device, dev->vendor, pci_name(dev)); + return ret; +} +EXPORT_SYMBOL(pci_hw_disabled); +#endif + struct drv_dev_and_id { struct pci_driver *drv; struct pci_dev *dev; diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 41aeaa235132..e8137d31cc93 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -4285,6 +4285,30 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9000, DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9084, quirk_bridge_cavm_thrx2_pcie_root); +/* + * PCI BAR 5 is not setup correctly for the on-board AHCI controller + * on Broadcom's Vulcan processor. Added a quirk to fix BAR 5 by + * using BAR 4's resources which are populated correctly and NOT + * actually used by the AHCI controller. + */ +static void quirk_fix_vulcan_ahci_bars(struct pci_dev *dev) +{ + struct resource *r = &dev->resource[4]; + + if (!(r->flags & IORESOURCE_MEM) || (r->start == 0)) + return; + + /* Set BAR5 resource to BAR4 */ + dev->resource[5] = *r; + + /* Update BAR5 in pci config space */ + pci_write_config_dword(dev, PCI_BASE_ADDRESS_5, r->start); + + /* Clear BAR4's resource */ + memset(r, 0, sizeof(*r)); +} +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9027, quirk_fix_vulcan_ahci_bars); + /* * Intersil/Techwell TW686[4589]-based video capture cards have an empty (zero) * class code. Fix it. diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 9c27bc37e5de..8179eac8a7c3 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -78,6 +78,7 @@ char aac_driver_version[] = AAC_DRIVER_FULL_VERSION; * Note: The last field is used to index into aac_drivers below. */ static const struct pci_device_id aac_pci_tbl[] = { +#ifndef CONFIG_RHEL_DIFFERENCES { 0x1028, 0x0001, 0x1028, 0x0001, 0, 0, 0 }, /* PERC 2/Si (Iguana/PERC2Si) */ { 0x1028, 0x0002, 0x1028, 0x0002, 0, 0, 1 }, /* PERC 3/Di (Opal/PERC3Di) */ { 0x1028, 0x0003, 0x1028, 0x0003, 0, 0, 2 }, /* PERC 3/Si (SlimFast/PERC3Si */ @@ -145,6 +146,7 @@ static const struct pci_device_id aac_pci_tbl[] = { { 0x9005, 0x0285, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 59 }, /* Adaptec Catch All */ { 0x9005, 0x0286, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 60 }, /* Adaptec Rocket Catch All */ { 0x9005, 0x0288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 61 }, /* Adaptec NEMER/ARK Catch All */ +#endif { 0x9005, 0x028b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 62 }, /* Adaptec PMC Series 6 (Tupelo) */ { 0x9005, 0x028c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 63 }, /* Adaptec PMC Series 7 (Denali) */ { 0x9005, 0x028d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 64 }, /* Adaptec PMC Series 8 */ diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index 3bb0adefbe06..b5408ba70ecb 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -372,11 +372,13 @@ static int beiscsi_eh_device_reset(struct scsi_cmnd *sc) /*------------------- PCI Driver operations and data ----------------- */ static const struct pci_device_id beiscsi_pci_id_table[] = { +#ifndef CONFIG_RHEL_DIFFERENCES { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) }, { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) }, { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) }, { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) }, { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID3) }, +#endif { PCI_DEVICE(ELX_VENDOR_ID, OC_SKH_ID1) }, { 0 } }; diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index a47bcce3c9c7..094944a52866 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -82,7 +82,9 @@ MODULE_DESCRIPTION("Driver for HP Smart Array Controller version " \ HPSA_DRIVER_VERSION); MODULE_VERSION(HPSA_DRIVER_VERSION); MODULE_LICENSE("GPL"); +#ifndef CONFIG_RHEL_DIFFERENCES MODULE_ALIAS("cciss"); +#endif static int hpsa_simple_mode; module_param(hpsa_simple_mode, int, S_IRUGO|S_IWUSR); @@ -144,10 +146,12 @@ static const struct pci_device_id hpsa_pci_device_id[] = { {PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x007D}, {PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0088}, {PCI_VENDOR_ID_HP, 0x333f, 0x103c, 0x333f}, +#ifndef CONFIG_RHEL_DIFFERENCES {PCI_VENDOR_ID_HP, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0}, {PCI_VENDOR_ID_COMPAQ, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0}, +#endif {0,} }; diff --git a/drivers/scsi/lpfc/lpfc_ids.h b/drivers/scsi/lpfc/lpfc_ids.h index a1b9be245560..aa8c493241c6 100644 --- a/drivers/scsi/lpfc/lpfc_ids.h +++ b/drivers/scsi/lpfc/lpfc_ids.h @@ -24,6 +24,7 @@ #include const struct pci_device_id lpfc_id_table[] = { +#ifndef CONFIG_RHEL_DIFFERENCES {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, PCI_ANY_ID, PCI_ANY_ID, }, {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, @@ -54,14 +55,19 @@ const struct pci_device_id lpfc_id_table[] = { PCI_ANY_ID, PCI_ANY_ID, }, {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, PCI_ANY_ID, PCI_ANY_ID, }, +#endif {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, PCI_ANY_ID, PCI_ANY_ID, }, +#ifndef CONFIG_RHEL_DIFFERENCES {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, PCI_ANY_ID, PCI_ANY_ID, }, +#endif {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, PCI_ANY_ID, PCI_ANY_ID, }, +#ifndef CONFIG_RHEL_DIFFERENCES {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, PCI_ANY_ID, PCI_ANY_ID, }, +#endif {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, PCI_ANY_ID, PCI_ANY_ID, }, {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, @@ -70,6 +76,7 @@ const struct pci_device_id lpfc_id_table[] = { PCI_ANY_ID, PCI_ANY_ID, }, {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, PCI_ANY_ID, PCI_ANY_ID, }, +#ifndef CONFIG_RHEL_DIFFERENCES {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, PCI_ANY_ID, PCI_ANY_ID, }, {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, @@ -80,6 +87,7 @@ const struct pci_device_id lpfc_id_table[] = { PCI_ANY_ID, PCI_ANY_ID, }, {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, PCI_ANY_ID, PCI_ANY_ID, }, +#endif {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, PCI_ANY_ID, PCI_ANY_ID, }, {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, @@ -92,6 +100,7 @@ const struct pci_device_id lpfc_id_table[] = { PCI_ANY_ID, PCI_ANY_ID, }, {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, PCI_ANY_ID, PCI_ANY_ID, }, +#ifndef CONFIG_RHEL_DIFFERENCES {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, PCI_ANY_ID, PCI_ANY_ID, }, {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, @@ -102,18 +111,23 @@ const struct pci_device_id lpfc_id_table[] = { PCI_ANY_ID, PCI_ANY_ID, }, {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, PCI_ANY_ID, PCI_ANY_ID, }, +#endif {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, PCI_ANY_ID, PCI_ANY_ID, }, +#ifndef CONFIG_RHEL_DIFFERENCES {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, PCI_ANY_ID, PCI_ANY_ID, }, +#endif {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, PCI_ANY_ID, PCI_ANY_ID, }, +#ifndef CONFIG_RHEL_DIFFERENCES {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, PCI_ANY_ID, PCI_ANY_ID, }, {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF, PCI_ANY_ID, PCI_ANY_ID, }, {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF, PCI_ANY_ID, PCI_ANY_ID, }, +#endif {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_G6_FC, PCI_ANY_ID, PCI_ANY_ID, }, {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_G7_FC, diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 0917b05059b4..38cef4e394fb 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -149,6 +149,7 @@ megasas_set_ld_removed_by_fw(struct megasas_instance *instance); */ static struct pci_device_id megasas_pci_table[] = { +#ifndef CONFIG_RHEL_DIFFERENCES {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)}, /* xscale IOP */ {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)}, @@ -157,16 +158,19 @@ static struct pci_device_id megasas_pci_table[] = { /* ppc IOP */ {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)}, /* gen2*/ +#endif {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)}, /* gen2*/ {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)}, /* skinny*/ {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)}, /* skinny*/ +#ifndef CONFIG_RHEL_DIFFERENCES {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)}, /* xscale IOP, vega */ {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)}, /* xscale IOP */ +#endif {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)}, /* Fusion */ {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)}, diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index b519f4b59d30..3e51c2e8cb69 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -12606,6 +12606,7 @@ bool scsih_ncq_prio_supp(struct scsi_device *sdev) * The pci device ids are defined in mpi/mpi2_cnfg.h. */ static const struct pci_device_id mpt3sas_pci_table[] = { +#ifndef CONFIG_RHEL_DIFFERENCES /* Spitfire ~ 2004 */ { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004, PCI_ANY_ID, PCI_ANY_ID }, @@ -12624,6 +12625,7 @@ static const struct pci_device_id mpt3sas_pci_table[] = { PCI_ANY_ID, PCI_ANY_ID }, { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2, PCI_ANY_ID, PCI_ANY_ID }, +#endif /* Thunderbolt ~ 2208 */ { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1, PCI_ANY_ID, PCI_ANY_ID }, @@ -12648,9 +12650,11 @@ static const struct pci_device_id mpt3sas_pci_table[] = { PCI_ANY_ID, PCI_ANY_ID }, { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SWITCH_MPI_EP_1, PCI_ANY_ID, PCI_ANY_ID }, +#ifndef CONFIG_RHEL_DIFFERENCES /* SSS6200 */ { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SSS6200, PCI_ANY_ID, PCI_ANY_ID }, +#endif /* Fury ~ 3004 and 3008 */ { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3004, PCI_ANY_ID, PCI_ANY_ID }, diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 73073fb08369..3e4612bcf8fc 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -7973,6 +7973,7 @@ static const struct pci_error_handlers qla2xxx_err_handler = { }; static struct pci_device_id qla2xxx_pci_tbl[] = { +#ifndef CONFIG_RHEL_DIFFERENCES { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) }, @@ -7985,13 +7986,18 @@ static struct pci_device_id qla2xxx_pci_tbl[] = { { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) }, +#endif { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2031) }, +#ifndef CONFIG_RHEL_DIFFERENCES { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) }, +#endif { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8031) }, +#ifndef CONFIG_RHEL_DIFFERENCES { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISPF001) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8044) }, +#endif { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2071) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2271) }, { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2261) }, diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 9e849f6b0d0f..00f9a1303b93 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -9854,6 +9854,7 @@ static struct pci_device_id qla4xxx_pci_tbl[] = { .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, }, +#ifndef CONFIG_RHEL_DIFFERENCES { .vendor = PCI_VENDOR_ID_QLOGIC, .device = PCI_DEVICE_ID_QLOGIC_ISP8022, @@ -9872,6 +9873,7 @@ static struct pci_device_id qla4xxx_pci_tbl[] = { .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, }, +#endif {0, 0}, }; MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); diff --git a/drivers/soc/bcm/bcm2835-power.c b/drivers/soc/bcm/bcm2835-power.c index 1e0041ec8132..5bcd047768b6 100644 --- a/drivers/soc/bcm/bcm2835-power.c +++ b/drivers/soc/bcm/bcm2835-power.c @@ -126,8 +126,7 @@ #define ASB_AXI_BRDG_ID 0x20 -#define ASB_READ(reg) readl(power->asb + (reg)) -#define ASB_WRITE(reg, val) writel(PM_PASSWORD | (val), power->asb + (reg)) +#define BCM2835_BRDG_ID 0x62726467 struct bcm2835_power_domain { struct generic_pm_domain base; @@ -142,24 +141,41 @@ struct bcm2835_power { void __iomem *base; /* AXI Async bridge registers. */ void __iomem *asb; + /* RPiVid bridge registers. */ + void __iomem *rpivid_asb; struct genpd_onecell_data pd_xlate; struct bcm2835_power_domain domains[BCM2835_POWER_DOMAIN_COUNT]; struct reset_controller_dev reset; }; -static int bcm2835_asb_enable(struct bcm2835_power *power, u32 reg) +static int bcm2835_asb_control(struct bcm2835_power *power, u32 reg, bool enable) { + void __iomem *base = power->asb; u64 start; + u32 val; - if (!reg) + switch (reg) { + case 0: return 0; + case ASB_V3D_S_CTRL: + case ASB_V3D_M_CTRL: + if (power->rpivid_asb) + base = power->rpivid_asb; + break; + } start = ktime_get_ns(); /* Enable the module's async AXI bridges. */ - ASB_WRITE(reg, ASB_READ(reg) & ~ASB_REQ_STOP); - while (ASB_READ(reg) & ASB_ACK) { + if (enable) { + val = readl(base + reg) & ~ASB_REQ_STOP; + } else { + val = readl(base + reg) | ASB_REQ_STOP; + } + writel(PM_PASSWORD | val, base + reg); + + while (readl(base + reg) & ASB_ACK) { cpu_relax(); if (ktime_get_ns() - start >= 1000) return -ETIMEDOUT; @@ -168,30 +184,24 @@ static int bcm2835_asb_enable(struct bcm2835_power *power, u32 reg) return 0; } -static int bcm2835_asb_disable(struct bcm2835_power *power, u32 reg) +static int bcm2835_asb_enable(struct bcm2835_power *power, u32 reg) { - u64 start; - - if (!reg) - return 0; - - start = ktime_get_ns(); - - /* Enable the module's async AXI bridges. */ - ASB_WRITE(reg, ASB_READ(reg) | ASB_REQ_STOP); - while (!(ASB_READ(reg) & ASB_ACK)) { - cpu_relax(); - if (ktime_get_ns() - start >= 1000) - return -ETIMEDOUT; - } + return bcm2835_asb_control(power, reg, true); +} - return 0; +static int bcm2835_asb_disable(struct bcm2835_power *power, u32 reg) +{ + return bcm2835_asb_control(power, reg, false); } static int bcm2835_power_power_off(struct bcm2835_power_domain *pd, u32 pm_reg) { struct bcm2835_power *power = pd->power; + /* We don't run this on BCM2711 */ + if (power->rpivid_asb) + return 0; + /* Enable functional isolation */ PM_WRITE(pm_reg, PM_READ(pm_reg) & ~PM_ISFUNC); @@ -213,6 +223,10 @@ static int bcm2835_power_power_on(struct bcm2835_power_domain *pd, u32 pm_reg) int inrush; bool powok; + /* We don't run this on BCM2711 */ + if (power->rpivid_asb) + return 0; + /* If it was already powered on by the fw, leave it that way. */ if (PM_READ(pm_reg) & PM_POWUP) return 0; @@ -626,13 +640,23 @@ static int bcm2835_power_probe(struct platform_device *pdev) power->dev = dev; power->base = pm->base; power->asb = pm->asb; + power->rpivid_asb = pm->rpivid_asb; - id = ASB_READ(ASB_AXI_BRDG_ID); - if (id != 0x62726467 /* "BRDG" */) { + id = readl(power->asb + ASB_AXI_BRDG_ID); + if (id != BCM2835_BRDG_ID /* "BRDG" */) { dev_err(dev, "ASB register ID returned 0x%08x\n", id); return -ENODEV; } + if (power->rpivid_asb) { + id = readl(power->rpivid_asb + ASB_AXI_BRDG_ID); + if (id != BCM2835_BRDG_ID /* "BRDG" */) { + dev_err(dev, "RPiVid ASB register ID returned 0x%08x\n", + id); + return -ENODEV; + } + } + power->pd_xlate.domains = devm_kcalloc(dev, ARRAY_SIZE(power_domain_names), sizeof(*power->pd_xlate.domains), diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 68e9121c1878..ccd7566adb4b 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -5686,6 +5686,13 @@ static void hub_event(struct work_struct *work) (u16) hub->change_bits[0], (u16) hub->event_bits[0]); + /* Don't disconnect USB-SATA on TrimSlice */ + if (strcmp(dev_name(hdev->bus->controller), "tegra-ehci.0") == 0) { + if ((hdev->state == 7) && (hub->change_bits[0] == 0) && + (hub->event_bits[0] == 0x2)) + hub->event_bits[0] = 0; + } + /* Lock the device, then check to see if we were * disconnected while waiting for the lock to succeed. */ usb_lock_device(hdev); diff --git a/fs/afs/main.c b/fs/afs/main.c index eae288c8d40a..8b8bf447cedc 100644 --- a/fs/afs/main.c +++ b/fs/afs/main.c @@ -201,6 +201,9 @@ static int __init afs_init(void) goto error_proc; } +#ifdef CONFIG_RHEL_DIFFERENCES + mark_partner_supported(KBUILD_MODNAME, THIS_MODULE); +#endif return ret; error_proc: diff --git a/include/linux/efi.h b/include/linux/efi.h index 7d9b0bb47eb3..221776a5377a 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -43,6 +43,8 @@ #define EFI_ABORTED (21 | (1UL << (BITS_PER_LONG-1))) #define EFI_SECURITY_VIOLATION (26 | (1UL << (BITS_PER_LONG-1))) +#define EFI_IS_ERROR(x) ((x) & (1UL << (BITS_PER_LONG-1))) + typedef unsigned long efi_status_t; typedef u8 efi_bool_t; typedef u16 efi_char16_t; /* UNICODE character */ @@ -849,6 +851,14 @@ extern int __init efi_setup_pcdp_console(char *); #define EFI_MEM_ATTR 10 /* Did firmware publish an EFI_MEMORY_ATTRIBUTES table? */ #define EFI_MEM_NO_SOFT_RESERVE 11 /* Is the kernel configured to ignore soft reservations? */ #define EFI_PRESERVE_BS_REGIONS 12 /* Are EFI boot-services memory segments available? */ +#define EFI_SECURE_BOOT 13 /* Are we in Secure Boot mode? */ + +enum efi_secureboot_mode { + efi_secureboot_mode_unset, + efi_secureboot_mode_unknown, + efi_secureboot_mode_disabled, + efi_secureboot_mode_enabled, +}; #ifdef CONFIG_EFI /* @@ -860,6 +870,8 @@ static inline bool efi_enabled(int feature) } extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused); +extern void __init efi_set_secure_boot(enum efi_secureboot_mode mode); + bool __pure __efi_soft_reserve_enabled(void); static inline bool __pure efi_soft_reserve_enabled(void) @@ -880,6 +892,8 @@ static inline bool efi_enabled(int feature) static inline void efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {} +static inline void efi_set_secure_boot(enum efi_secureboot_mode mode) {} + static inline bool efi_soft_reserve_enabled(void) { return false; @@ -892,6 +906,7 @@ static inline bool efi_rt_services_supported(unsigned int mask) #endif extern int efi_status_to_err(efi_status_t status); +extern const char *efi_status_to_str(efi_status_t status); /* * Variable Attributes @@ -1144,13 +1159,6 @@ static inline bool efi_runtime_disabled(void) { return true; } extern void efi_call_virt_check_flags(unsigned long flags, const char *call); extern unsigned long efi_call_virt_save_flags(void); -enum efi_secureboot_mode { - efi_secureboot_mode_unset, - efi_secureboot_mode_unknown, - efi_secureboot_mode_disabled, - efi_secureboot_mode_enabled, -}; - static inline enum efi_secureboot_mode efi_get_secureboot_mode(efi_get_variable_t *get_var) { diff --git a/include/linux/kernel.h b/include/linux/kernel.h index fe6efb24d151..85b185391da7 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -508,4 +508,25 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { } /* OTHER_WRITABLE? Generally considered a bad idea. */ \ BUILD_BUG_ON_ZERO((perms) & 2) + \ (perms)) + +struct module; + +#ifdef CONFIG_RHEL_DIFFERENCES +void mark_hardware_unmaintained(const char *driver_name, char *fmt, ...); +void mark_driver_unmaintained(const char *driver_name); +void mark_hardware_deprecated(const char *driver_name, char *fmt, ...); +void mark_driver_deprecated(const char *driver_name); +void mark_hardware_disabled(const char *driver_name, char *fmt, ...); +void mark_tech_preview(const char *msg, struct module *mod); +void mark_partner_supported(const char *msg, struct module *mod); +#else +static inline void mark_hardware_unmaintained(const char *driver_name, char *fmt, ...) { } +static inline void mark_driver_unmaintained(const char *driver_name) { } +static inline void mark_hardware_deprecated(const char *driver_name, char *fmt, ...) { } +static inline void mark_driver_deprecated(const char *driver_name) { } +static inline void mark_hardware_disabled(const char *driver_name, char *fmt, ...) { } +static inline void mark_tech_preview(const char *msg, struct module *mod) { } +static inline void mark_partner_supported(const char *msg, struct module *mod) { } +#endif + #endif diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h index eafa1d2489fd..8a7165ea78d5 100644 --- a/include/linux/lsm_hook_defs.h +++ b/include/linux/lsm_hook_defs.h @@ -394,6 +394,8 @@ LSM_HOOK(void, LSM_RET_VOID, bpf_prog_free_security, struct bpf_prog_aux *aux) #endif /* CONFIG_BPF_SYSCALL */ LSM_HOOK(int, 0, locked_down, enum lockdown_reason what) +LSM_HOOK(int, 0, lock_kernel_down, const char *where, enum lockdown_reason level) + #ifdef CONFIG_PERF_EVENTS LSM_HOOK(int, 0, perf_event_open, struct perf_event_attr *attr, int type) diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index 91c8146649f5..42a73934404e 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -1550,6 +1550,12 @@ * * @what: kernel feature being accessed * + * @lock_kernel_down + * Put the kernel into lock-down mode. + * + * @where: Where the lock-down is originating from (e.g. command line option) + * @level: The lock-down level (can only increase) + * * Security hooks for perf events * * @perf_event_open: diff --git a/include/linux/mfd/bcm2835-pm.h b/include/linux/mfd/bcm2835-pm.h index ed37dc40e82a..f70a810c55f7 100644 --- a/include/linux/mfd/bcm2835-pm.h +++ b/include/linux/mfd/bcm2835-pm.h @@ -9,6 +9,7 @@ struct bcm2835_pm { struct device *dev; void __iomem *base; void __iomem *asb; + void __iomem *rpivid_asb; }; #endif /* BCM2835_MFD_PM_H */ diff --git a/include/linux/module.h b/include/linux/module.h index abd9fa916b7d..f32ae6380ffd 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -380,6 +380,7 @@ struct module { struct module_attribute *modinfo_attrs; const char *version; const char *srcversion; + const char *rhelversion; struct kobject *holders_dir; /* Exported symbols */ diff --git a/include/linux/panic.h b/include/linux/panic.h index e71161da69c4..25d187e0a84c 100644 --- a/include/linux/panic.h +++ b/include/linux/panic.h @@ -68,7 +68,24 @@ static inline void set_arch_panic_timeout(int timeout, int arch_default_timeout) #define TAINT_LIVEPATCH 15 #define TAINT_AUX 16 #define TAINT_RANDSTRUCT 17 -#define TAINT_FLAGS_COUNT 18 +/* Start of Red Hat-specific taint flags */ +#define TAINT_18 18 +#define TAINT_19 19 +#define TAINT_20 20 +#define TAINT_21 21 +#define TAINT_22 22 +#define TAINT_23 23 +#define TAINT_24 24 +#define TAINT_25 25 +#define TAINT_PARTNER_SUPPORTED 26 +#define TAINT_SUPPORT_REMOVED 27 +/* Bits 28 - 31 are reserved for Red Hat use only */ +#define TAINT_RESERVED28 28 +#define TAINT_RESERVED29 29 +#define TAINT_RESERVED30 30 +#define TAINT_UNPRIVILEGED_BPF 31 +/* End of Red Hat-specific taint flags */ +#define TAINT_FLAGS_COUNT 32 #define TAINT_FLAGS_MAX ((1UL << TAINT_FLAGS_COUNT) - 1) struct taint_flag { diff --git a/include/linux/pci.h b/include/linux/pci.h index 81a57b498f22..220e81965971 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1499,6 +1499,22 @@ int pci_add_dynid(struct pci_driver *drv, unsigned long driver_data); const struct pci_device_id *pci_match_id(const struct pci_device_id *ids, struct pci_dev *dev); + +#ifdef CONFIG_RHEL_DIFFERENCES +const struct pci_device_id *pci_hw_deprecated(const struct pci_device_id *ids, + struct pci_dev *dev); +const struct pci_device_id *pci_hw_unmaintained(const struct pci_device_id *ids, + struct pci_dev *dev); +const struct pci_device_id *pci_hw_disabled(const struct pci_device_id *ids, + struct pci_dev *dev); +#else +static inline const struct pci_device_id *pci_hw_deprecated(const struct pci_device_id *ids, + struct pci_dev *dev) { return NULL; } +static inline const struct pci_device_id *pci_hw_unmaintained(const struct pci_device_id *ids, + struct pci_dev *dev) { return NULL; } +static inline const struct pci_device_id *pci_hw_disabled(const struct pci_device_id *ids, + struct pci_dev *dev) {return NULL; } +#endif int pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, int pass); diff --git a/include/linux/rh_kabi.h b/include/linux/rh_kabi.h new file mode 100644 index 000000000000..c7b42c1f1681 --- /dev/null +++ b/include/linux/rh_kabi.h @@ -0,0 +1,515 @@ +/* + * rh_kabi.h - Red Hat kABI abstraction header + * + * Copyright (c) 2014 Don Zickus + * Copyright (c) 2015-2020 Jiri Benc + * Copyright (c) 2015 Sabrina Dubroca, Hannes Frederic Sowa + * Copyright (c) 2016-2018 Prarit Bhargava + * Copyright (c) 2017 Paolo Abeni, Larry Woodman + * + * This file is released under the GPLv2. + * See the file COPYING for more details. + * + * These kabi macros hide the changes from the kabi checker and from the + * process that computes the exported symbols' checksums. + * They have 2 variants: one (defined under __GENKSYMS__) used when + * generating the checksums, and the other used when building the kernel's + * binaries. + * + * The use of these macros does not guarantee that the usage and modification + * of code is correct. As with all Red Hat only changes, an engineer must + * explain why the use of the macro is valid in the patch containing the + * changes. + * + */ + +#ifndef _LINUX_RH_KABI_H +#define _LINUX_RH_KABI_H + +#include +#include +#include + +/* + * NOTE + * Unless indicated otherwise, don't use ';' after these macros as it + * messes up the kABI checker by changing what the resulting token string + * looks like. Instead let the macros add the ';' so it can be properly + * hidden from the kABI checker (mainly for RH_KABI_EXTEND, but applied to + * most macros for uniformity). + * + * + * RH_KABI_CONST + * Adds a new const modifier to a function parameter preserving the old + * checksum. + * + * RH_KABI_ADD_MODIFIER + * Adds a new modifier to a function parameter or a typedef, preserving + * the old checksum. Useful e.g. for adding rcu annotations or changing + * int to unsigned. Beware that this may change the semantics; if you're + * sure this is safe, always explain why binary compatibility with 3rd + * party modules is retained. + * + * RH_KABI_DEPRECATE + * Marks the element as deprecated and make it unusable by modules while + * keeping a hole in its place to preserve binary compatibility. + * + * RH_KABI_DEPRECATE_FN + * Marks the function pointer as deprecated and make it unusable by modules + * while keeping a hole in its place to preserve binary compatibility. + * + * RH_KABI_EXTEND + * Adds a new field to a struct. This must always be added to the end of + * the struct. Before using this macro, make sure this is actually safe + * to do - there is a number of conditions under which it is *not* safe. + * In particular (but not limited to), this macro cannot be used: + * - if the struct in question is embedded in another struct, or + * - if the struct is allocated by drivers either statically or + * dynamically, or + * - if the struct is allocated together with driver data (an example of + * such behavior is struct net_device or struct request). + * + * RH_KABI_EXTEND_WITH_SIZE + * Adds a new element (usually a struct) to a struct and reserves extra + * space for the new element. The provided 'size' is the total space to + * be added in longs (i.e. it's 8 * 'size' bytes), including the size of + * the added element. It is automatically checked that the new element + * does not overflow the reserved space, now nor in the future. However, + * no attempt is done to check the content of the added element (struct) + * for kABI conformance - kABI checking inside the added element is + * effectively switched off. + * For any struct being added by RH_KABI_EXTEND_WITH_SIZE, it is + * recommended its content to be documented as not covered by kABI + * guarantee. + * + * RH_KABI_FILL_HOLE + * Fills a hole in a struct. + * + * Warning: only use if a hole exists for _all_ arches. Use pahole to verify. + * + * RH_KABI_RENAME + * Renames an element without changing its type. This macro can be used in + * bitfields, for example. + * + * NOTE: this macro does not add the final ';' + * + * RH_KABI_REPLACE + * Replaces the _orig field by the _new field. The size of the occupied + * space is preserved, it's fine if the _new field is smaller than the + * _orig field. If a _new field is larger or has a different alignment, + * compilation will abort. + * + * RH_KABI_REPLACE_SPLIT + * Works the same as RH_KABI_REPLACE but replaces a single _orig field by + * multiple new fields. The checks for size and alignment done by + * RH_KABI_REPLACE are still applied. + * + * RH_KABI_HIDE_INCLUDE + * Hides the given include file from kABI checksum computations. This is + * used when a newly added #include makes a previously opaque struct + * visible. + * + * Example usage: + * #include RH_KABI_HIDE_INCLUDE() + * + * RH_KABI_FAKE_INCLUDE + * Pretends inclusion of the given file for kABI checksum computations. + * This is used when upstream removed a particular #include but that made + * some structures opaque that were previously visible and is causing kABI + * checker failures. + * + * Example usage: + * #include RH_KABI_FAKE_INCLUDE() + * + * RH_KABI_RESERVE + * Adds a reserved field to a struct. This is done prior to kABI freeze + * for structs that cannot be expanded later using RH_KABI_EXTEND (for + * example because they are embedded in another struct or because they are + * allocated by drivers or because they use unusual memory layout). The + * size of the reserved field is 'unsigned long' and is assumed to be + * 8 bytes. + * + * The argument is a number unique for the given struct; usually, multiple + * RH_KABI_RESERVE macros are added to a struct with numbers starting from + * one. + * + * Example usage: + * struct foo { + * int a; + * RH_KABI_RESERVE(1) + * RH_KABI_RESERVE(2) + * RH_KABI_RESERVE(3) + * RH_KABI_RESERVE(4) + * }; + * + * RH_KABI_USE + * Uses a previously reserved field or multiple fields. The arguments are + * one or more numbers assigned to RH_KABI_RESERVE, followed by a field to + * be put in their place. The compiler ensures that the new field is not + * larger than the reserved area. + * + * Example usage: + * struct foo { + * int a; + * RH_KABI_USE(1, int b) + * RH_KABI_USE(2, 3, int c[3]) + * RH_KABI_RESERVE(4) + * }; + * + * RH_KABI_USE_SPLIT + * Works the same as RH_KABI_USE but replaces a single reserved field by + * multiple new fields. + * + * RH_KABI_AUX_EMBED + * RH_KABI_AUX_PTR + * Adds an extenstion of a struct in the form of "auxiliary structure". + * This is done prior to kABI freeze for structs that cannot be expanded + * later using RH_KABI_EXTEND. See also RH_KABI_RESERVED, these two + * approaches can (and often are) combined. + * + * To use this for 'struct foo' (the "base structure"), define a new + * structure called 'struct foo_rh'; this new struct is called "auxiliary + * structure". Then add RH_KABI_AUX_EMBED or RH_KABI_AUX_PTR to the end + * of the base structure. The argument is the name of the base structure, + * without the 'struct' keyword. + * + * RH_KABI_AUX_PTR stores a pointer to the aux structure in the base + * struct. The lifecycle of the aux struct needs to be properly taken + * care of. + * + * RH_KABI_AUX_EMBED embeds the aux struct into the base struct. This + * cannot be used when the base struct is itself embedded into another + * struct, allocated in an array, etc. + * + * Both approaches (ptr and embed) work correctly even when the aux struct + * is allocated by modules. To ensure this, the code responsible for + * allocation/assignment of the aux struct has to properly set the size of + * the aux struct; see the RH_KABI_AUX_SET_SIZE and RH_KABI_AUX_INIT_SIZE + * macros. + * + * New fields can be later added to the auxiliary structure, always to its + * end. Note the auxiliary structure cannot be shrunk in size later (i.e., + * fields cannot be removed, only deprecated). Any code accessing fields + * from the aux struct must guard the access using the RH_KABI_AUX macro. + * The access itself is then done via a '_rh' field in the base struct. + * + * The auxiliary structure is not guaranteed for access by modules unless + * explicitly commented as such in the declaration of the aux struct + * itself or some of its elements. + * + * Example: + * + * struct foo_rh { + * int newly_added; + * }; + * + * struct foo { + * bool big_hammer; + * RH_KABI_AUX_PTR(foo) + * }; + * + * void use(struct foo *f) + * { + * if (RH_KABI_AUX(f, foo, newly_added)) + * f->_rh->newly_added = 123; + * else + * // the field 'newly_added' is not present in the passed + * // struct, fall back to old behavior + * f->big_hammer = true; + * } + * + * static struct foo_rh my_foo_rh { + * .newly_added = 0; + * } + * + * static struct foo my_foo = { + * .big_hammer = false, + * ._rh = &my_foo_rh, + * RH_KABI_AUX_INIT_SIZE(foo) + * }; + * + * RH_KABI_USE_AUX_PTR + * Creates an auxiliary structure post kABI freeze. This works by using + * two reserved fields (thus there has to be two reserved fields still + * available) and converting them to RH_KABI_AUX_PTR. + * + * Example: + * + * struct foo_rh { + * }; + * + * struct foo { + * int a; + * RH_KABI_RESERVE(1) + * RH_KABI_USE_AUX_PTR(2, 3, foo) + * }; + * + * RH_KABI_AUX_SET_SIZE + * RH_KABI_AUX_INIT_SIZE + * Calculates and stores the size of the auxiliary structure. + * + * RH_KABI_AUX_SET_SIZE is for dynamically allocated base structs, + * RH_KABI_AUX_INIT_SIZE is for statically allocated case structs. + * + * These macros must be called from the allocation (RH_KABI_AUX_SET_SIZE) + * or declaration (RH_KABI_AUX_INIT_SIZE) site, regardless of whether + * that happens in the kernel or in a module. Without calling one of + * these macros, the aux struct will appear to have no fields to the + * kernel. + * + * Note: since RH_KABI_AUX_SET_SIZE is intended to be invoked outside of + * a struct definition, it does not add the semicolon and must be + * terminated by semicolon by the caller. + * + * RH_KABI_AUX + * Verifies that the given field exists in the given auxiliary structure. + * This MUST be called prior to accessing that field; failing to do that + * may lead to invalid memory access. + * + * The first argument is a pointer to the base struct, the second argument + * is the name of the base struct (without the 'struct' keyword), the + * third argument is the field name. + * + * This macro works for structs extended by either of RH_KABI_AUX_EMBED, + * RH_KABI_AUX_PTR and RH_KABI_USE_AUX_PTR. + * + * RH_KABI_FORCE_CHANGE + * Force change of the symbol checksum. The argument of the macro is a + * version for cases we need to do this more than once. + * + * This macro does the opposite: it changes the symbol checksum without + * actually changing anything about the exported symbol. It is useful for + * symbols that are not whitelisted, we're changing them in an + * incompatible way and want to prevent 3rd party modules to silently + * corrupt memory. Instead, by changing the symbol checksum, such modules + * won't be loaded by the kernel. This macro should only be used as a + * last resort when all other KABI workarounds have failed. + * + * RH_KABI_EXCLUDE + * !!! WARNING: DANGEROUS, DO NOT USE unless you are aware of all the !!! + * !!! implications. This should be used ONLY EXCEPTIONALLY and only !!! + * !!! under specific circumstances. Very likely, this macro does not !!! + * !!! do what you expect it to do. Note that any usage of this macro !!! + * !!! MUST be paired with a RH_KABI_FORCE_CHANGE annotation of !!! + * !!! a suitable symbol (or an equivalent safeguard) and the commit !!! + * !!! log MUST explain why the chosen solution is appropriate. !!! + * + * Exclude the element from checksum generation. Any such element is + * considered not to be part of the kABI whitelist and may be changed at + * will. Note however that it's the responsibility of the developer + * changing the element to ensure 3rd party drivers using this element + * won't panic, for example by not allowing them to be loaded. That can + * be achieved by changing another, non-whitelisted symbol they use, + * either by nature of the change or by using RH_KABI_FORCE_CHANGE. + * + * Also note that any change to the element must preserve its size. Change + * of the size is not allowed and would constitute a silent kABI breakage. + * Beware that the RH_KABI_EXCLUDE macro does not do any size checks. + * + * RH_KABI_BROKEN_INSERT + * RH_KABI_BROKEN_REMOVE + * Insert a field to the middle of a struct / delete a field from a struct. + * Note that this breaks kABI! It can be done only when it's certain that + * no 3rd party driver can validly reach into the struct. A typical + * example is a struct that is: both (a) referenced only through a long + * chain of pointers from another struct that is part of a whitelisted + * symbol and (b) kernel internal only, it should have never been visible + * to genksyms in the first place. + * + * Another example are structs that are explicitly exempt from kABI + * guarantee but we did not have enough foresight to use RH_KABI_EXCLUDE. + * In this case, the warning for RH_KABI_EXCLUDE applies. + * + * A detailed explanation of correctness of every RH_KABI_BROKEN_* macro + * use is especially important. + * + * RH_KABI_BROKEN_INSERT_BLOCK + * RH_KABI_BROKEN_REMOVE_BLOCK + * A version of RH_KABI_BROKEN_INSERT / REMOVE that allows multiple fields + * to be inserted or removed together. All fields need to be terminated + * by ';' inside(!) the macro parameter. The macro itself must not be + * terminated by ';'. + * + * RH_KABI_BROKEN_REPLACE + * Replace a field by a different one without doing any checking. This + * allows replacing a field by another with a different size. Similarly + * to other RH_KABI_BROKEN macros, use of this indicates a kABI breakage. + * + * RH_KABI_BROKEN_INSERT_ENUM + * RH_KABI_BROKEN_REMOVE_ENUM + * Insert a field to the middle of an enumaration type / delete a field from + * an enumaration type. Note that this can break kABI especially if the + * number of enum fields is used in an array within a structure. It can be + * done only when it is certain that no 3rd party driver will use the + * enumeration type or a structure that embeds an array with size determined + * by an enumeration type. + * + * RH_KABI_EXTEND_ENUM + * Adds a new field to an enumeration type. This must always be added to + * the end of the enum. Before using this macro, make sure this is actually + * safe to do. + */ + +#undef linux +#define linux linux + +#ifdef __GENKSYMS__ + +# define RH_KABI_CONST +# define RH_KABI_ADD_MODIFIER(_new) +# define RH_KABI_EXTEND(_new) +# define RH_KABI_FILL_HOLE(_new) +# define RH_KABI_FORCE_CHANGE(ver) __attribute__((rh_kabi_change ## ver)) +# define RH_KABI_RENAME(_orig, _new) _orig +# define RH_KABI_HIDE_INCLUDE(_file) +# define RH_KABI_FAKE_INCLUDE(_file) _file +# define RH_KABI_BROKEN_INSERT(_new) +# define RH_KABI_BROKEN_REMOVE(_orig) _orig; +# define RH_KABI_BROKEN_INSERT_BLOCK(_new) +# define RH_KABI_BROKEN_REMOVE_BLOCK(_orig) _orig +# define RH_KABI_BROKEN_REPLACE(_orig, _new) _orig; +# define RH_KABI_BROKEN_INSERT_ENUM(_new) +# define RH_KABI_BROKEN_REMOVE_ENUM(_orig) _orig, +# define RH_KABI_EXTEND_ENUM(_new) + +# define _RH_KABI_DEPRECATE(_type, _orig) _type _orig +# define _RH_KABI_DEPRECATE_FN(_type, _orig, _args...) _type (*_orig)(_args) +# define _RH_KABI_REPLACE(_orig, _new) _orig +# define _RH_KABI_EXCLUDE(_elem) + +#else + +# define RH_KABI_ALIGN_WARNING ". Disable CONFIG_RH_KABI_SIZE_ALIGN_CHECKS if debugging." + +# define RH_KABI_CONST const +# define RH_KABI_ADD_MODIFIER(_new) _new +# define RH_KABI_EXTEND(_new) _new; +# define RH_KABI_FILL_HOLE(_new) _new; +# define RH_KABI_FORCE_CHANGE(ver) +# define RH_KABI_RENAME(_orig, _new) _new +# define RH_KABI_HIDE_INCLUDE(_file) _file +# define RH_KABI_FAKE_INCLUDE(_file) +# define RH_KABI_BROKEN_INSERT(_new) _new; +# define RH_KABI_BROKEN_REMOVE(_orig) +# define RH_KABI_BROKEN_INSERT_BLOCK(_new) _new +# define RH_KABI_BROKEN_REMOVE_BLOCK(_orig) +# define RH_KABI_BROKEN_REPLACE(_orig, _new) _new; +# define RH_KABI_BROKEN_INSERT_ENUM(_new) _new, +# define RH_KABI_BROKEN_REMOVE_ENUM(_orig) +# define RH_KABI_EXTEND_ENUM(_new) _new, + +#if IS_BUILTIN(CONFIG_RH_KABI_SIZE_ALIGN_CHECKS) +# define __RH_KABI_CHECK_SIZE_ALIGN(_orig, _new) \ + union { \ + _Static_assert(sizeof(struct{_new;}) <= sizeof(struct{_orig;}), \ + __FILE__ ":" __stringify(__LINE__) ": " __stringify(_new) " is larger than " __stringify(_orig) RH_KABI_ALIGN_WARNING); \ + _Static_assert(__alignof__(struct{_new;}) <= __alignof__(struct{_orig;}), \ + __FILE__ ":" __stringify(__LINE__) ": " __stringify(_orig) " is not aligned the same as " __stringify(_new) RH_KABI_ALIGN_WARNING); \ + } +# define __RH_KABI_CHECK_SIZE(_item, _size) \ + _Static_assert(sizeof(struct{_item;}) <= _size, \ + __FILE__ ":" __stringify(__LINE__) ": " __stringify(_item) " is larger than the reserved size (" __stringify(_size) " bytes)" RH_KABI_ALIGN_WARNING) +#else +# define __RH_KABI_CHECK_SIZE_ALIGN(_orig, _new) +# define __RH_KABI_CHECK_SIZE(_item, _size) +#endif + +#define RH_KABI_UNIQUE_ID __PASTE(rh_kabi_hidden_, __LINE__) + +# define _RH_KABI_DEPRECATE(_type, _orig) _type rh_reserved_##_orig +# define _RH_KABI_DEPRECATE_FN(_type, _orig, _args...) \ + _type (* rh_reserved_##_orig)(_args) +# define _RH_KABI_REPLACE(_orig, _new) \ + union { \ + _new; \ + struct { \ + _orig; \ + } RH_KABI_UNIQUE_ID; \ + __RH_KABI_CHECK_SIZE_ALIGN(_orig, _new); \ + } + +# define _RH_KABI_EXCLUDE(_elem) _elem + +#endif /* __GENKSYMS__ */ + +# define RH_KABI_DEPRECATE(_type, _orig) _RH_KABI_DEPRECATE(_type, _orig); +# define RH_KABI_DEPRECATE_FN(_type, _orig, _args...) \ + _RH_KABI_DEPRECATE_FN(_type, _orig, _args); +# define RH_KABI_REPLACE(_orig, _new) _RH_KABI_REPLACE(_orig, _new); + +#define _RH_KABI_REPLACE1(_new) _new; +#define _RH_KABI_REPLACE2(_new, ...) _new; _RH_KABI_REPLACE1(__VA_ARGS__) +#define _RH_KABI_REPLACE3(_new, ...) _new; _RH_KABI_REPLACE2(__VA_ARGS__) +#define _RH_KABI_REPLACE4(_new, ...) _new; _RH_KABI_REPLACE3(__VA_ARGS__) +#define _RH_KABI_REPLACE5(_new, ...) _new; _RH_KABI_REPLACE4(__VA_ARGS__) +#define _RH_KABI_REPLACE6(_new, ...) _new; _RH_KABI_REPLACE5(__VA_ARGS__) +#define _RH_KABI_REPLACE7(_new, ...) _new; _RH_KABI_REPLACE6(__VA_ARGS__) +#define _RH_KABI_REPLACE8(_new, ...) _new; _RH_KABI_REPLACE7(__VA_ARGS__) +#define _RH_KABI_REPLACE9(_new, ...) _new; _RH_KABI_REPLACE8(__VA_ARGS__) +#define _RH_KABI_REPLACE10(_new, ...) _new; _RH_KABI_REPLACE9(__VA_ARGS__) +#define _RH_KABI_REPLACE11(_new, ...) _new; _RH_KABI_REPLACE10(__VA_ARGS__) +#define _RH_KABI_REPLACE12(_new, ...) _new; _RH_KABI_REPLACE11(__VA_ARGS__) + +#define RH_KABI_REPLACE_SPLIT(_orig, ...) _RH_KABI_REPLACE(_orig, \ + struct { __PASTE(_RH_KABI_REPLACE, COUNT_ARGS(__VA_ARGS__))(__VA_ARGS__) }); + +# define RH_KABI_RESERVE(n) _RH_KABI_RESERVE(n); + +#define _RH_KABI_USE1(n, _new) _RH_KABI_RESERVE(n), _new +#define _RH_KABI_USE2(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE1(__VA_ARGS__) +#define _RH_KABI_USE3(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE2(__VA_ARGS__) +#define _RH_KABI_USE4(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE3(__VA_ARGS__) +#define _RH_KABI_USE5(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE4(__VA_ARGS__) +#define _RH_KABI_USE6(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE5(__VA_ARGS__) +#define _RH_KABI_USE7(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE6(__VA_ARGS__) +#define _RH_KABI_USE8(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE7(__VA_ARGS__) +#define _RH_KABI_USE9(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE8(__VA_ARGS__) +#define _RH_KABI_USE10(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE9(__VA_ARGS__) +#define _RH_KABI_USE11(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE10(__VA_ARGS__) +#define _RH_KABI_USE12(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE11(__VA_ARGS__) + +#define _RH_KABI_USE(...) _RH_KABI_REPLACE(__VA_ARGS__) +#define RH_KABI_USE(n, ...) _RH_KABI_USE(__PASTE(_RH_KABI_USE, COUNT_ARGS(__VA_ARGS__))(n, __VA_ARGS__)); + +# define RH_KABI_USE_SPLIT(n, ...) RH_KABI_REPLACE_SPLIT(_RH_KABI_RESERVE(n), __VA_ARGS__) + +# define _RH_KABI_RESERVE(n) unsigned long rh_reserved##n + +#define RH_KABI_EXCLUDE(_elem) _RH_KABI_EXCLUDE(_elem); + +#define RH_KABI_EXTEND_WITH_SIZE(_new, _size) \ + RH_KABI_EXTEND(union { \ + _new; \ + unsigned long RH_KABI_UNIQUE_ID[_size]; \ + __RH_KABI_CHECK_SIZE(_new, 8 * (_size)); \ + }) + +#define _RH_KABI_AUX_PTR(_struct) \ + size_t _struct##_size_rh; \ + _RH_KABI_EXCLUDE(struct _struct##_rh *_rh) +#define RH_KABI_AUX_PTR(_struct) \ + _RH_KABI_AUX_PTR(_struct); + +#define _RH_KABI_AUX_EMBED(_struct) \ + size_t _struct##_size_rh; \ + _RH_KABI_EXCLUDE(struct _struct##_rh _rh) +#define RH_KABI_AUX_EMBED(_struct) \ + _RH_KABI_AUX_EMBED(_struct); + +#define RH_KABI_USE_AUX_PTR(n1, n2, _struct) \ + RH_KABI_USE(n1, n2, \ + struct { RH_KABI_AUX_PTR(_struct) }) + +#define RH_KABI_AUX_SET_SIZE(_name, _struct) ({ \ + (_name)->_struct##_size_rh = sizeof(struct _struct##_rh); \ +}) + +#define RH_KABI_AUX_INIT_SIZE(_struct) \ + ._struct##_size_rh = sizeof(struct _struct##_rh), + +#define RH_KABI_AUX(_ptr, _struct, _field) ({ \ + size_t __off = offsetof(struct _struct##_rh, _field); \ + (_ptr)->_struct##_size_rh > __off ? true : false; \ +}) + +#endif /* _LINUX_RH_KABI_H */ diff --git a/include/linux/rmi.h b/include/linux/rmi.h index ab7eea01ab42..fff7c5f737fc 100644 --- a/include/linux/rmi.h +++ b/include/linux/rmi.h @@ -364,6 +364,7 @@ struct rmi_driver_data { struct rmi4_attn_data attn_data; DECLARE_KFIFO(attn_fifo, struct rmi4_attn_data, 16); + struct work_struct attn_work; }; int rmi_register_transport_device(struct rmi_transport_dev *xport); diff --git a/include/linux/security.h b/include/linux/security.h index 7fc4e9f49f54..6f0b0b2dc73d 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -473,6 +473,7 @@ int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen); int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen); int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen); int security_locked_down(enum lockdown_reason what); +int security_lock_kernel_down(const char *where, enum lockdown_reason level); #else /* CONFIG_SECURITY */ static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data) @@ -1349,6 +1350,10 @@ static inline int security_locked_down(enum lockdown_reason what) { return 0; } +static inline int security_lock_kernel_down(const char *where, enum lockdown_reason level) +{ + return 0; +} #endif /* CONFIG_SECURITY */ #if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE) diff --git a/init/Kconfig b/init/Kconfig index c7900e8975f1..ea721c12c251 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1678,7 +1678,7 @@ config AIO this option saves about 7k. config IO_URING - bool "Enable IO uring support" if EXPERT + bool "Enable IO uring support" select IO_WQ default y help diff --git a/kernel/Makefile b/kernel/Makefile index a7e1f49ab2b3..4a9172cf1728 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -12,6 +12,7 @@ obj-y = fork.o exec_domain.o panic.o \ notifier.o ksysfs.o cred.o reboot.o \ async.o range.o smpboot.o ucount.o regset.o +obj-$(CONFIG_RHEL_DIFFERENCES) += rh_messages.o obj-$(CONFIG_USERMODE_DRIVER) += usermode_driver.o obj-$(CONFIG_MODULES) += kmod.o obj-$(CONFIG_MULTIUSER) += groups.o diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index 2b69306d3c6e..8f60e3254ce1 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include #include @@ -54,6 +55,23 @@ static DEFINE_SPINLOCK(map_idr_lock); static DEFINE_IDR(link_idr); static DEFINE_SPINLOCK(link_idr_lock); +static int __init unprivileged_bpf_setup(char *str) +{ + unsigned long disabled; + if (!kstrtoul(str, 0, &disabled)) + sysctl_unprivileged_bpf_disabled = !!disabled; + + if (!sysctl_unprivileged_bpf_disabled) { + pr_warn("Unprivileged BPF has been enabled " + "(unprivileged_bpf_disabled=0 has been supplied " + "in boot parameters), tainting the kernel"); + add_taint(TAINT_UNPRIVILEGED_BPF, LOCKDEP_STILL_OK); + } + + return 1; +} +__setup("unprivileged_bpf_disabled=", unprivileged_bpf_setup); + int sysctl_unprivileged_bpf_disabled __read_mostly = IS_BUILTIN(CONFIG_BPF_UNPRIV_DEFAULT_OFF) ? 2 : 0; @@ -5217,6 +5235,11 @@ static int bpf_unpriv_handler(struct ctl_table *table, int write, if (write && !ret) { if (locked_state && unpriv_enable != 1) return -EPERM; + if (!unpriv_enable) { + pr_warn("Unprivileged BPF has been enabled, " + "tainting the kernel"); + add_taint(TAINT_UNPRIVILEGED_BPF, LOCKDEP_STILL_OK); + } *(int *)table->data = unpriv_enable; } diff --git a/kernel/module/main.c b/kernel/module/main.c index 0548151dd933..e5b6b3e616d3 100644 --- a/kernel/module/main.c +++ b/kernel/module/main.c @@ -523,6 +523,7 @@ static struct module_attribute modinfo_##field = { \ MODINFO_ATTR(version); MODINFO_ATTR(srcversion); +MODINFO_ATTR(rhelversion); static char last_unloaded_module[MODULE_NAME_LEN+1]; @@ -965,6 +966,7 @@ struct module_attribute *modinfo_attrs[] = { &module_uevent, &modinfo_version, &modinfo_srcversion, + &modinfo_rhelversion, &modinfo_initstate, &modinfo_coresize, #ifdef CONFIG_ARCH_WANTS_MODULES_DATA_IN_VMALLOC diff --git a/kernel/module/signing.c b/kernel/module/signing.c index a2ff4242e623..f0d2be1ee4f1 100644 --- a/kernel/module/signing.c +++ b/kernel/module/signing.c @@ -61,10 +61,17 @@ int mod_verify_sig(const void *mod, struct load_info *info) modlen -= sig_len + sizeof(ms); info->len = modlen; - return verify_pkcs7_signature(mod, modlen, mod + modlen, sig_len, + ret = verify_pkcs7_signature(mod, modlen, mod + modlen, sig_len, VERIFY_USE_SECONDARY_KEYRING, VERIFYING_MODULE_SIGNATURE, NULL, NULL); + if (ret == -ENOKEY && IS_ENABLED(CONFIG_INTEGRITY_PLATFORM_KEYRING)) { + ret = verify_pkcs7_signature(mod, modlen, mod + modlen, sig_len, + VERIFY_USE_PLATFORM_KEYRING, + VERIFYING_MODULE_SIGNATURE, + NULL, NULL); + } + return ret; } int module_sig_check(struct load_info *info, int flags) diff --git a/kernel/panic.c b/kernel/panic.c index a3308af28a21..1ca93bae00de 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -428,6 +428,20 @@ const struct taint_flag taint_flags[TAINT_FLAGS_COUNT] = { [ TAINT_LIVEPATCH ] = { 'K', ' ', true }, [ TAINT_AUX ] = { 'X', ' ', true }, [ TAINT_RANDSTRUCT ] = { 'T', ' ', true }, + [ TAINT_18 ] = { '?', '-', false }, + [ TAINT_19 ] = { '?', '-', false }, + [ TAINT_20 ] = { '?', '-', false }, + [ TAINT_21 ] = { '?', '-', false }, + [ TAINT_22 ] = { '?', '-', false }, + [ TAINT_23 ] = { '?', '-', false }, + [ TAINT_24 ] = { '?', '-', false }, + [ TAINT_25 ] = { '?', '-', false }, + [ TAINT_PARTNER_SUPPORTED ] = { 'p', ' ', true }, + [ TAINT_SUPPORT_REMOVED ] = { 'h', ' ', false }, + [ TAINT_RESERVED28 ] = { '?', '-', false }, + [ TAINT_RESERVED29 ] = { '?', '-', false }, + [ TAINT_RESERVED30 ] = { '?', '-', false }, + [ TAINT_UNPRIVILEGED_BPF ] = { 'u', ' ', false }, }; /** diff --git a/kernel/rh_messages.c b/kernel/rh_messages.c new file mode 100644 index 000000000000..586c3319f530 --- /dev/null +++ b/kernel/rh_messages.c @@ -0,0 +1,209 @@ +#include +#include + +#define DEV_DESC_LEN 256 +/* + * The following functions are used by Red Hat to indicate to users that + * hardware and drivers are unsupported, or have limited support in RHEL major + * and minor releases. These functions output loud warning messages to the end + * user and should be USED WITH CAUTION. + * + * Any use of these functions _MUST_ be documented in the RHEL Release Notes, + * and have approval of management. + * + * Generally, the process of disabling a driver or device in RHEL requires the + * driver or device to be marked as 'deprecated' in all existing releases, and + * then either 'unmaintained' or 'disabled' in a future release. + * + * In general, deprecated and unmaintained drivers continue to receive security + * related fixes until they are disabled. + */ + +/** + * mark_hardware_unmaintained() - Mark hardware as unmaintained. + * @driver_name: driver name + * @fmt: format for device description + * @...: args for device description + * + * Called to notify users that the device will no longer be tested on a routine + * basis and driver code associated with this device is no longer being updated. + * Red Hat may fix security-related and critical issues. Support for this device + * will be disabled in a future major release and users deploying this device + * should plan to replace the device in production systems. + * + * This function should be used when the driver's usage can be tied to a + * specific hardware device. For example, a network device driver loading on a + * specific device that is no longer maintained by the manufacturer. + */ +void mark_hardware_unmaintained(const char *driver_name, char *fmt, ...) +{ + char device_description[DEV_DESC_LEN]; + va_list args; + + va_start(args, fmt); + vsnprintf(device_description, DEV_DESC_LEN, fmt, args); + pr_crit("Warning: Unmaintained hardware is detected: %s:%s\n", driver_name, + device_description); + va_end(args); +} +EXPORT_SYMBOL(mark_hardware_unmaintained); + +/** + * mark_driver_unmaintained() - Mark a driver as unmaintained. + * @driver_name: driver name + * + * Called to notify users that a driver will no longer be tested on a routine + * basis and the driver code is no longer being updated. Red Hat may fix + * security-related and critical issues. Support for this driver will be + * disabled in a future major release, and users should replace any affected + * devices in production systems. + * + * This function should be used when a driver's usage cannot be tied to a + * specific hardware device. For example, a network bonding driver or a higher + * level storage layer driver that is no longer maintained upstream. + */ +void mark_driver_unmaintained(const char *driver_name) +{ + pr_crit("Warning: Unmaintained driver is detected: %s\n", driver_name); +} +EXPORT_SYMBOL(mark_driver_unmaintained); + +/** + * mark_hardware_deprecated() - Mark hardware as deprecated. + * @driver_name: driver name + * @fmt: format for device description + * @...: args for device description + * + * Called to notify users that support for the device is planned to be + * unmaintained in a future major release, and will eventually be disabled in a + * future major release. This device should not be used in new production + * environments and users should replace the device in production systems. + * + * This function should be used when the driver's usage can be tied to a + * specific hardware device. For example, a network device driver loading on a + * specific device that is no longer maintained by the manufacturer. + */ +void mark_hardware_deprecated(const char *driver_name, char *fmt, ...) +{ + char device_description[DEV_DESC_LEN]; + va_list args; + + va_start(args, fmt); + vsnprintf(device_description, DEV_DESC_LEN, fmt, args); + pr_crit("Warning: Deprecated Hardware is detected: %s:%s will not be maintained in a future major release and may be disabled\n", + driver_name, device_description); + va_end(args); +} +EXPORT_SYMBOL(mark_hardware_deprecated); + +/** + * mark_driver_deprecated() - Mark a driver as deprecated. + * @driver_name: driver name + * + * Called to notify users that support for this driver is planned to be + * unmaintained in a future major release, and will eventually be disabled in a + * future major release. This driver should not be used in new production + * environments and users should replace any affected devices in production + * systems. + * + * This function should be used when a driver's usage cannot be tied to a + * specific hardware device. For example, a network bonding driver or a higher + * level storage layer driver that is no longer maintained upstream. + */ +void mark_driver_deprecated(const char *driver_name) +{ + pr_crit("Warning: Deprecated Driver is detected: %s will not be maintained in a future major release and may be disabled\n", + driver_name); +} +EXPORT_SYMBOL(mark_driver_deprecated); + +/** + * mark_hardware_disabled() - Mark a driver as removed. + * @driver_name: driver name + * @fmt: format for device description + * @...: args for device description + * + * Called to notify users that a device's support has been completely disabled + * and no future support updates will occur. This device cannot be used in new + * production environments, and users must replace the device in production + * systems. + * + * This function should be used when the driver's usage can be tied to a + * specific hardware device. For example, a network device driver loading on a + * specific device that is no longer maintained by the manufacturer. + */ +void mark_hardware_disabled(const char *driver_name, char *fmt, ...) +{ + char device_description[DEV_DESC_LEN]; + va_list args; + + va_start(args, fmt); + vsnprintf(device_description, DEV_DESC_LEN, fmt, args); + pr_crit("Warning: Disabled Hardware is detected: %s:%s is no longer enabled in this release.\n", + driver_name, device_description); + va_end(args); +} +EXPORT_SYMBOL(mark_hardware_disabled); + +/** + * mark_tech_preview() - Mark driver or kernel subsystem as 'Tech Preview' + * @msg: Driver or kernel subsystem name + * + * Called to minimize the support status of a new driver. This does TAINT the + * kernel. Calling this function indicates that the driver or subsystem has + * had limited testing and is not marked for full support within this RHEL + * minor release. The next RHEL minor release may contain full support for + * this driver. Red Hat does not guarantee that bugs reported against this + * driver or subsystem will be resolved. + */ +void mark_tech_preview(const char *msg, struct module *mod) +{ + const char *str = NULL; + + if (msg) + str = msg; +#ifdef CONFIG_MODULES + else if (mod && mod->name) + str = mod->name; +#endif + + pr_warn("TECH PREVIEW: %s may not be fully supported.\n" + "Please review provided documentation for limitations.\n", + (str ? str : "kernel")); + add_taint(TAINT_AUX, LOCKDEP_STILL_OK); +#ifdef CONFIG_MODULES + if (mod) + mod->taints |= (1U << TAINT_AUX); +#endif +} +EXPORT_SYMBOL(mark_tech_preview); + +/** + * mark_partner_supported() - Mark driver or kernel subsystem as 'Partner Supported' + * @msg: Driver or kernel subsystem name + * + * Called to clarify the support status of a driver. This does TAINT the + * kernel. Calling this function indicates that the driver or subsystem is + * supported by one of our partners and not by Red Hat directly. + */ +void mark_partner_supported(const char *msg, struct module *mod) +{ + const char *str = NULL; + + if (msg) + str = msg; +#ifdef CONFIG_MODULES + else if (mod && mod->name) + str = mod->name; +#endif + + pr_warn("Notice: %s is a Partner Supported GPL module and not supported directly by Red Hat.\n" + "Please contact your provider for support.\n", + (str ? str : "kernel")); + add_taint(TAINT_PARTNER_SUPPORTED, LOCKDEP_STILL_OK); +#ifdef CONFIG_MODULES + if (mod) + mod->taints |= (1U << TAINT_PARTNER_SUPPORTED); +#endif +} +EXPORT_SYMBOL(mark_partner_supported); diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 620dc8c4c814..09f57724f9a4 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -22,6 +22,7 @@ #include #include "modpost.h" #include "../../include/linux/license.h" +#include "../../include/generated/uapi/linux/version.h" /* Are we using CONFIG_MODVERSIONS? */ static bool modversions; @@ -2314,6 +2315,12 @@ static void write_buf(struct buffer *b, const char *fname) } } +static void add_rhelversion(struct buffer *b, struct module *mod) +{ + buf_printf(b, "MODULE_INFO(rhelversion, \"%d.%d\");\n", RHEL_MAJOR, + RHEL_MINOR); +} + static void write_if_changed(struct buffer *b, const char *fname) { char *tmp; @@ -2377,6 +2384,7 @@ static void write_mod_c_file(struct module *mod) add_depends(&buf, mod); add_moddevtable(&buf, mod); add_srcversion(&buf, mod); + add_rhelversion(&buf, mod); ret = snprintf(fname, sizeof(fname), "%s.mod.c", mod->name); if (ret >= sizeof(fname)) { diff --git a/scripts/tags.sh b/scripts/tags.sh index 01fab3d4f90b..2ae5dfc904f9 100755 --- a/scripts/tags.sh +++ b/scripts/tags.sh @@ -16,6 +16,8 @@ fi ignore="$(echo "$RCS_FIND_IGNORE" | sed 's|\\||g' )" # tags and cscope files should also ignore MODVERSION *.mod.c files ignore="$ignore ( -name *.mod.c ) -prune -o" +# RHEL tags and cscope should also ignore redhat/rpm +ignore="$ignore ( -path redhat/rpm ) -prune -o" # Use make KBUILD_ABS_SRCTREE=1 {tags|cscope} # to force full paths for a non-O= build diff --git a/security/integrity/platform_certs/load_uefi.c b/security/integrity/platform_certs/load_uefi.c index 093894a640dc..1c43a9462b4b 100644 --- a/security/integrity/platform_certs/load_uefi.c +++ b/security/integrity/platform_certs/load_uefi.c @@ -73,7 +73,8 @@ static __init void *get_cert_list(efi_char16_t *name, efi_guid_t *guid, return NULL; if (*status != EFI_BUFFER_TOO_SMALL) { - pr_err("Couldn't get size: 0x%lx\n", *status); + pr_err("Couldn't get size: %s (0x%lx)\n", + efi_status_to_str(*status), *status); return NULL; } @@ -84,7 +85,8 @@ static __init void *get_cert_list(efi_char16_t *name, efi_guid_t *guid, *status = efi.get_variable(name, guid, NULL, &lsize, db); if (*status != EFI_SUCCESS) { kfree(db); - pr_err("Error reading db var: 0x%lx\n", *status); + pr_err("Error reading db var: %s (0x%lx)\n", + efi_status_to_str(*status), *status); return NULL; } diff --git a/security/lockdown/Kconfig b/security/lockdown/Kconfig index e84ddf484010..d0501353a4b9 100644 --- a/security/lockdown/Kconfig +++ b/security/lockdown/Kconfig @@ -16,6 +16,19 @@ config SECURITY_LOCKDOWN_LSM_EARLY subsystem is fully initialised. If enabled, lockdown will unconditionally be called before any other LSMs. +config LOCK_DOWN_IN_EFI_SECURE_BOOT + bool "Lock down the kernel in EFI Secure Boot mode" + default n + depends on EFI && SECURITY_LOCKDOWN_LSM_EARLY + help + UEFI Secure Boot provides a mechanism for ensuring that the firmware + will only load signed bootloaders and kernels. Secure boot mode may + be determined from EFI variables provided by the system firmware if + not indicated by the boot parameters. + + Enabling this option results in kernel lockdown being triggered if + EFI Secure Boot is set. + choice prompt "Kernel default lockdown mode" default LOCK_DOWN_KERNEL_FORCE_NONE diff --git a/security/lockdown/lockdown.c b/security/lockdown/lockdown.c index 87cbdc64d272..18555cf18da7 100644 --- a/security/lockdown/lockdown.c +++ b/security/lockdown/lockdown.c @@ -73,6 +73,7 @@ static int lockdown_is_locked_down(enum lockdown_reason what) static struct security_hook_list lockdown_hooks[] __lsm_ro_after_init = { LSM_HOOK_INIT(locked_down, lockdown_is_locked_down), + LSM_HOOK_INIT(lock_kernel_down, lock_kernel_down), }; static int __init lockdown_lsm_init(void) diff --git a/security/security.c b/security/security.c index 188b8f782220..dab400de2335 100644 --- a/security/security.c +++ b/security/security.c @@ -2617,6 +2617,12 @@ int security_locked_down(enum lockdown_reason what) } EXPORT_SYMBOL(security_locked_down); +int security_lock_kernel_down(const char *where, enum lockdown_reason level) +{ + return call_int_hook(lock_kernel_down, 0, where, level); +} +EXPORT_SYMBOL(security_lock_kernel_down); + #ifdef CONFIG_PERF_EVENTS int security_perf_event_open(struct perf_event_attr *attr, int type) {