2022-03-23 21:01:34 +00:00
Documentation/admin-guide/kernel-parameters.txt | 9 +
2022-07-19 17:21:48 +00:00
.../devicetree/bindings/gpu/brcm,bcm-v3d.yaml | 1 +
.../bindings/soc/bcm/brcm,bcm2835-pm.txt | 46 -
.../bindings/soc/bcm/brcm,bcm2835-pm.yaml | 86 ++
2022-03-23 21:01:34 +00:00
Kconfig | 2 +
Kconfig.redhat | 17 +
Makefile | 12 +-
arch/arm/Kconfig | 4 +-
2022-07-19 17:21:48 +00:00
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 +
2022-03-23 21:01:34 +00:00
arch/arm64/Kconfig | 3 +-
2022-07-19 17:21:48 +00:00
arch/arm64/configs/defconfig | 1 +
2022-03-23 21:01:34 +00:00
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 +
2022-07-19 17:21:48 +00:00
arch/x86/kernel/setup.c | 68 +-
2022-03-23 21:01:34 +00:00
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 +
2022-07-19 17:21:48 +00:00
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 --
2022-03-23 21:01:34 +00:00
drivers/hwtracing/coresight/coresight-etm4x-core.c | 19 +
2022-07-19 17:21:48 +00:00
drivers/input/rmi4/rmi_driver.c | 124 +--
2022-03-23 21:01:34 +00:00
drivers/iommu/iommu.c | 22 +
drivers/message/fusion/mptsas.c | 10 +
drivers/message/fusion/mptspi.c | 11 +
2022-07-19 17:21:48 +00:00
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 +-
2022-04-27 12:56:35 +00:00
drivers/net/wireguard/main.c | 6 +
2022-03-23 21:01:34 +00:00
drivers/nvme/host/core.c | 22 +-
drivers/nvme/host/multipath.c | 19 +-
drivers/nvme/host/nvme.h | 4 +
2022-07-19 17:21:48 +00:00
drivers/pci/pci-driver.c | 78 ++
2022-03-23 21:01:34 +00:00
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 +
2022-07-19 17:21:48 +00:00
drivers/soc/bcm/bcm2835-power.c | 72 +-
2022-03-23 21:01:34 +00:00
drivers/usb/core/hub.c | 7 +
2022-04-06 16:03:15 +00:00
fs/afs/main.c | 3 +
2022-05-24 14:03:13 +00:00
include/linux/efi.h | 22 +-
2022-04-06 16:03:15 +00:00
include/linux/kernel.h | 21 +
2022-03-23 21:01:34 +00:00
include/linux/lsm_hook_defs.h | 2 +
include/linux/lsm_hooks.h | 6 +
2022-07-19 17:21:48 +00:00
include/linux/mfd/bcm2835-pm.h | 1 +
2022-03-23 21:01:34 +00:00
include/linux/module.h | 1 +
include/linux/panic.h | 19 +-
include/linux/pci.h | 16 +
2022-07-19 17:21:48 +00:00
include/linux/rh_kabi.h | 515 +++++++++++
2022-03-23 21:01:34 +00:00
include/linux/rmi.h | 1 +
include/linux/security.h | 5 +
init/Kconfig | 2 +-
kernel/Makefile | 1 +
2022-05-26 15:56:17 +00:00
kernel/bpf/syscall.c | 23 +
2022-05-27 19:14:17 +00:00
kernel/module/main.c | 2 +
kernel/module/signing.c | 9 +-
2022-03-23 21:01:34 +00:00
kernel/panic.c | 14 +
2022-07-19 17:21:48 +00:00
kernel/rh_messages.c | 209 +++++
2022-03-23 21:01:34 +00:00
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 +
2022-07-19 17:21:48 +00:00
88 files changed, 2766 insertions(+), 324 deletions(-)
2022-03-23 21:01:34 +00:00
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
2022-07-25 15:34:28 +00:00
index c0fdb04a0435..f5de4eb69748 100644
2022-03-23 21:01:34 +00:00
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
2022-07-25 15:34:28 +00:00
@@ -6315,6 +6315,15 @@
2022-03-23 21:01:34 +00:00
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,
2022-07-19 17:21:48 +00:00
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 <nsaenz@kernel.org>
+
+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 <dt-bindings/clock/bcm2835.h>
+
+ 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;
+ };
2022-03-23 21:01:34 +00:00
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
2022-07-25 15:34:28 +00:00
index b79c1c18149d..d6aa78ebf187 100644
2022-03-23 21:01:34 +00:00
--- 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.
#
2022-06-10 14:50:34 +00:00
@@ -1244,7 +1248,13 @@ define filechk_version.h
2022-03-23 21:01:34 +00:00
((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
2022-03-31 21:04:45 +00:00
$(version_h): PATCHLEVEL := $(or $(PATCHLEVEL), 0)
2022-03-23 21:01:34 +00:00
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
2022-06-06 12:05:57 +00:00
index 7630ba9cb6cc..c2e2991edd11 100644
2022-03-23 21:01:34 +00:00
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
2022-06-06 12:05:57 +00:00
@@ -1382,9 +1382,9 @@ config HIGHMEM
2022-03-23 21:01:34 +00:00
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
2022-07-19 17:21:48 +00:00
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 = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
};
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 = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+ };
};
};
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
2022-03-23 21:01:34 +00:00
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
2022-06-01 17:12:48 +00:00
index 1652a9800ebe..834d178f6c70 100644
2022-03-23 21:01:34 +00:00
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
2022-05-27 19:14:17 +00:00
@@ -1128,7 +1128,7 @@ endchoice
2022-03-23 21:01:34 +00:00
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
2022-05-27 19:14:17 +00:00
@@ -1367,6 +1367,7 @@ config XEN
2022-03-23 21:01:34 +00:00
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
2022-07-19 17:21:48 +00:00
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
2022-03-23 21:01:34 +00:00
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
2022-05-24 14:03:13 +00:00
index a405b6bb89fb..50827b341fd7 100644
2022-03-23 21:01:34 +00:00
--- 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
2022-04-04 14:21:38 +00:00
index 1cc85b8ff42e..b7ee128c67ce 100644
2022-03-23 21:01:34 +00:00
--- 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
2022-07-04 14:34:00 +00:00
index 0a37f5de2863..e2644fc7a172 100644
2022-03-23 21:01:34 +00:00
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -49,6 +49,7 @@
#include <linux/memory.h>
#include <linux/compat.h>
#include <linux/start_kernel.h>
+#include <linux/security.h>
#include <linux/hugetlb.h>
#include <linux/kmemleak.h>
2022-07-04 14:34:00 +00:00
@@ -970,6 +971,9 @@ void __init setup_arch(char **cmdline_p)
2022-03-23 21:01:34 +00:00
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
2022-07-13 14:11:34 +00:00
index 736262a76a12..4c410c845a8f 100644
2022-03-23 21:01:34 +00:00
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
2022-07-13 14:11:34 +00:00
@@ -1524,6 +1524,7 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c)
2022-03-23 21:01:34 +00:00
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
2022-06-20 14:30:53 +00:00
index bd6c6fd373ae..51a23f4931d8 100644
2022-03-23 21:01:34 +00:00
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -20,6 +20,7 @@
#include <linux/root_dev.h>
#include <linux/hugetlb.h>
#include <linux/tboot.h>
+#include <linux/security.h>
#include <linux/usb/xhci-dbgp.h>
#include <linux/static_call.h>
#include <linux/swiotlb.h>
@@ -51,6 +52,7 @@
#include <asm/unwind.h>
#include <asm/vsyscall.h>
#include <linux/vmalloc.h>
+#include <asm/intel-family.h>
/*
* max_low_pfn_mapped: highest directly mapped pfn < 4 GB
2022-06-20 14:30:53 +00:00
@@ -732,6 +734,49 @@ static void __init early_reserve_memory(void)
2022-03-23 21:01:34 +00:00
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.
*/
2022-06-20 14:30:53 +00:00
@@ -963,6 +1008,13 @@ void __init setup_arch(char **cmdline_p)
2022-03-23 21:01:34 +00:00
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();
/*
2022-06-20 14:30:53 +00:00
@@ -1132,19 +1184,7 @@ void __init setup_arch(char **cmdline_p)
2022-03-23 21:01:34 +00:00
/* 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();
2022-06-20 14:30:53 +00:00
@@ -1257,6 +1297,8 @@ void __init setup_arch(char **cmdline_p)
2022-03-23 21:01:34 +00:00
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
2022-04-11 13:52:24 +00:00
index 762b61f67e6c..3581d4898dc4 100644
2022-03-23 21:01:34 +00:00
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
2022-04-11 13:52:24 +00:00
@@ -1766,6 +1766,15 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
2022-03-23 21:01:34 +00:00
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
2022-03-24 14:44:17 +00:00
index cf8c7fd59ada..28a8189be64f 100644
2022-03-23 21:01:34 +00:00
--- 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
2022-05-25 20:25:48 +00:00
index 703433493c85..6b1b102b9b7d 100644
2022-03-23 21:01:34 +00:00
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -35,6 +35,7 @@
#include <linux/uuid.h>
#include <linux/nospec.h>
#include <linux/vmalloc.h>
+#include <linux/dmi.h>
#include <linux/delay.h>
#define IPMI_DRIVER_VERSION "39.2"
2022-05-25 20:25:48 +00:00
@@ -5516,8 +5517,21 @@ static int __init ipmi_init_msghandler_mod(void)
2022-03-23 21:01:34 +00:00
{
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
2022-05-24 14:03:13 +00:00
index 860534bcfdac..96548e72f5df 100644
2022-03-23 21:01:34 +00:00
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -31,6 +31,7 @@
#include <linux/ucs2_string.h>
#include <linux/memblock.h>
#include <linux/security.h>
+#include <linux/bsearch.h>
#include <asm/early_ioremap.h>
2022-05-24 14:03:13 +00:00
@@ -862,40 +863,101 @@ int efi_mem_type(unsigned long phys_addr)
2022-03-23 21:01:34 +00:00
}
#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 <linux/efi.h>
+#include <linux/kernel.h>
+#include <linux/printk.h>
+
+/*
+ * 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;
+ }
+ }
+}
2022-07-19 17:21:48 +00:00
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 <linux/circ_buf.h>
#include <linux/ctype.h>
#include <linux/debugfs.h>
-#include <linux/pm_runtime.h>
#include <linux/seq_file.h>
#include <linux/string_helpers.h>
@@ -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 <linux/module.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
#include <linux/reset.h>
#include <drm/drm_drv.h>
@@ -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 <linux/io.h>
#include <linux/module.h>
#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
#include <linux/reset.h>
#include <linux/sched/signal.h>
#include <linux/uaccess.h>
@@ -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;
2022-03-23 21:01:34 +00:00
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
2022-06-06 12:05:57 +00:00
index 87299e99dabb..d37b689ad1bf 100644
2022-03-23 21:01:34 +00:00
--- a/drivers/hwtracing/coresight/coresight-etm4x-core.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c
@@ -9,6 +9,7 @@
#include <linux/init.h>
#include <linux/types.h>
#include <linux/device.h>
+#include <linux/dmi.h>
#include <linux/io.h>
#include <linux/err.h>
#include <linux/fs.h>
2022-06-06 12:05:57 +00:00
@@ -2123,6 +2124,16 @@ static const struct amba_id etm4_ids[] = {
2022-03-23 21:01:34 +00:00
{},
};
+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 = {
2022-06-06 12:05:57 +00:00
@@ -2156,6 +2167,11 @@ static int __init etm4x_init(void)
2022-03-23 21:01:34 +00:00
{
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 */
2022-06-06 12:05:57 +00:00
@@ -2182,6 +2198,9 @@ static int __init etm4x_init(void)
2022-03-23 21:01:34 +00:00
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
2022-06-01 17:12:48 +00:00
index 847ad47a2dfd..e5e545c80de7 100644
2022-03-23 21:01:34 +00:00
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -7,6 +7,7 @@
#define pr_fmt(fmt) "iommu: " fmt
#include <linux/device.h>
+#include <linux/dmi.h>
#include <linux/dma-iommu.h>
#include <linux/kernel.h>
#include <linux/bits.h>
2022-06-01 17:12:48 +00:00
@@ -2856,6 +2857,27 @@ u32 iommu_sva_get_pasid(struct iommu_sva *handle)
2022-03-23 21:01:34 +00:00
}
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
2022-03-25 15:34:41 +00:00
index 34901bcd1ce8..24194dbc2784 100644
2022-03-23 21:01:34 +00:00
--- 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
2022-03-25 15:34:41 +00:00
index 388675cc1765..8c7d0740efb6 100644
2022-03-23 21:01:34 +00:00
--- 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:
2022-07-19 17:21:48 +00:00
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 <jonathan.lemon@gmail.com>
+ */
+
+#include <asm/unaligned.h>
+#include <linux/mii.h>
+#include <linux/phy.h>
+#include <linux/ptp_classify.h>
+#include <linux/ptp_clock_kernel.h>
+#include <linux/net_tstamp.h>
+#include <linux/netdevice.h>
+#include <linux/workqueue.h>
+
+#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;
}
2022-03-23 21:01:34 +00:00
diff --git a/drivers/net/wireguard/main.c b/drivers/net/wireguard/main.c
2022-04-27 12:56:35 +00:00
index ee4da9ab8013..d395d11eadc4 100644
2022-03-23 21:01:34 +00:00
--- a/drivers/net/wireguard/main.c
+++ b/drivers/net/wireguard/main.c
@@ -12,6 +12,7 @@
#include <uapi/linux/wireguard.h>
+#include <linux/fips.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/genetlink.h>
@@ -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
2022-07-18 13:34:58 +00:00
index 6a12a906a11e..463bcb0b62cd 100644
2022-03-23 21:01:34 +00:00
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
2022-03-28 15:40:29 +00:00
@@ -240,6 +240,9 @@ static void nvme_delete_ctrl_sync(struct nvme_ctrl *ctrl)
2022-03-23 21:01:34 +00:00
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;
2022-03-28 15:40:29 +00:00
@@ -330,6 +333,7 @@ enum nvme_disposition {
2022-03-23 21:01:34 +00:00
COMPLETE,
RETRY,
FAILOVER,
+ FAILUP,
};
static inline enum nvme_disposition nvme_decide_disposition(struct request *req)
2022-03-28 15:40:29 +00:00
@@ -337,15 +341,16 @@ static inline enum nvme_disposition nvme_decide_disposition(struct request *req)
2022-03-23 21:01:34 +00:00
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;
2022-03-28 15:40:29 +00:00
@@ -373,6 +378,14 @@ static inline void nvme_end_req(struct request *req)
2022-03-23 21:01:34 +00:00
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);
2022-03-28 15:40:29 +00:00
@@ -391,6 +404,9 @@ void nvme_complete_rq(struct request *req)
2022-03-23 21:01:34 +00:00
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
2022-05-24 14:03:13 +00:00
index d3e2440d8abb..da01ce9c9542 100644
2022-03-23 21:01:34 +00:00
--- 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) {
2022-05-24 14:03:13 +00:00
@@ -870,8 +876,7 @@ int nvme_mpath_init_identify(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id)
2022-03-23 21:01:34 +00:00
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
2022-07-04 14:34:00 +00:00
index 5558f8812157..dc8fd8da85da 100644
2022-03-23 21:01:34 +00:00
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
2022-07-04 14:34:00 +00:00
@@ -835,6 +835,7 @@ void nvme_mpath_wait_freeze(struct nvme_subsystem *subsys);
2022-03-23 21:01:34 +00:00
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);
2022-07-04 14:34:00 +00:00
@@ -871,6 +872,9 @@ static inline bool nvme_ctrl_use_ana(struct nvme_ctrl *ctrl)
2022-03-23 21:01:34 +00:00
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
2022-06-01 17:12:48 +00:00
index 49238ddd39ee..7c32d338542f 100644
2022-03-23 21:01:34 +00:00
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -19,6 +19,7 @@
#include <linux/kexec.h>
#include <linux/of_device.h>
#include <linux/acpi.h>
+#include <linux/kernel.h>
#include <linux/dma-map-ops.h>
2022-06-01 17:12:48 +00:00
#include <linux/iommu.h>
2022-03-23 21:01:34 +00:00
#include "pci.h"
2022-06-01 17:12:48 +00:00
@@ -296,6 +297,83 @@ static struct attribute *pci_drv_attrs[] = {
2022-03-23 21:01:34 +00:00
};
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
2022-05-31 14:12:29 +00:00
index 41aeaa235132..e8137d31cc93 100644
2022-03-23 21:01:34 +00:00
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
2022-05-31 14:12:29 +00:00
@@ -4285,6 +4285,30 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9000,
2022-03-23 21:01:34 +00:00
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
2022-03-25 15:34:41 +00:00
index 9c27bc37e5de..8179eac8a7c3 100644
2022-03-23 21:01:34 +00:00
--- 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
2022-03-25 15:34:41 +00:00
index 3bb0adefbe06..b5408ba70ecb 100644
2022-03-23 21:01:34 +00:00
--- 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
2022-06-06 12:05:57 +00:00
index a1b9be245560..aa8c493241c6 100644
2022-03-23 21:01:34 +00:00
--- a/drivers/scsi/lpfc/lpfc_ids.h
+++ b/drivers/scsi/lpfc/lpfc_ids.h
@@ -24,6 +24,7 @@
#include <linux/pci.h>
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
2022-07-18 13:34:58 +00:00
index 0917b05059b4..38cef4e394fb 100644
2022-03-23 21:01:34 +00:00
--- 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
2022-05-26 15:56:17 +00:00
index b519f4b59d30..3e51c2e8cb69 100644
2022-03-23 21:01:34 +00:00
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
2022-05-26 15:56:17 +00:00
@@ -12606,6 +12606,7 @@ bool scsih_ncq_prio_supp(struct scsi_device *sdev)
2022-03-23 21:01:34 +00:00
* 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 },
2022-05-26 15:56:17 +00:00
@@ -12624,6 +12625,7 @@ static const struct pci_device_id mpt3sas_pci_table[] = {
2022-03-23 21:01:34 +00:00
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 },
2022-05-26 15:56:17 +00:00
@@ -12648,9 +12650,11 @@ static const struct pci_device_id mpt3sas_pci_table[] = {
2022-03-23 21:01:34 +00:00
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
2022-05-26 15:56:17 +00:00
index 73073fb08369..3e4612bcf8fc 100644
2022-03-23 21:01:34 +00:00
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
2022-05-26 15:56:17 +00:00
@@ -7973,6 +7973,7 @@ static const struct pci_error_handlers qla2xxx_err_handler = {
2022-03-23 21:01:34 +00:00
};
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) },
2022-05-26 15:56:17 +00:00
@@ -7985,13 +7986,18 @@ static struct pci_device_id qla2xxx_pci_tbl[] = {
2022-03-23 21:01:34 +00:00
{ 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
2022-05-26 15:56:17 +00:00
index 9e849f6b0d0f..00f9a1303b93 100644
2022-03-23 21:01:34 +00:00
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
2022-05-26 15:56:17 +00:00
@@ -9854,6 +9854,7 @@ static struct pci_device_id qla4xxx_pci_tbl[] = {
2022-03-23 21:01:34 +00:00
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
},
+#ifndef CONFIG_RHEL_DIFFERENCES
{
.vendor = PCI_VENDOR_ID_QLOGIC,
.device = PCI_DEVICE_ID_QLOGIC_ISP8022,
2022-05-26 15:56:17 +00:00
@@ -9872,6 +9873,7 @@ static struct pci_device_id qla4xxx_pci_tbl[] = {
2022-03-23 21:01:34 +00:00
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
},
+#endif
{0, 0},
};
MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
2022-07-19 17:21:48 +00:00
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),
2022-03-23 21:01:34 +00:00
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
2022-06-06 12:05:57 +00:00
index 68e9121c1878..ccd7566adb4b 100644
2022-03-23 21:01:34 +00:00
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
2022-06-06 12:05:57 +00:00
@@ -5686,6 +5686,13 @@ static void hub_event(struct work_struct *work)
2022-03-23 21:01:34 +00:00
(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);
2022-04-06 16:03:15 +00:00
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:
2022-03-23 21:01:34 +00:00
diff --git a/include/linux/efi.h b/include/linux/efi.h
2022-05-26 15:56:17 +00:00
index 7d9b0bb47eb3..221776a5377a 100644
2022-03-23 21:01:34 +00:00
--- 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 */
2022-05-24 14:03:13 +00:00
@@ -849,6 +851,14 @@ extern int __init efi_setup_pcdp_console(char *);
2022-03-23 21:01:34 +00:00
#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
/*
2022-05-24 14:03:13 +00:00
@@ -860,6 +870,8 @@ static inline bool efi_enabled(int feature)
2022-03-23 21:01:34 +00:00
}
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)
2022-05-24 14:03:13 +00:00
@@ -880,6 +892,8 @@ static inline bool efi_enabled(int feature)
2022-03-23 21:01:34 +00:00
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;
2022-05-24 14:03:13 +00:00
@@ -892,6 +906,7 @@ static inline bool efi_rt_services_supported(unsigned int mask)
2022-03-23 21:01:34 +00:00
#endif
extern int efi_status_to_err(efi_status_t status);
+extern const char *efi_status_to_str(efi_status_t status);
/*
* Variable Attributes
2022-05-24 14:03:13 +00:00
@@ -1144,13 +1159,6 @@ static inline bool efi_runtime_disabled(void) { return true; }
2022-03-23 21:01:34 +00:00
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
2022-04-28 13:10:31 +00:00
index fe6efb24d151..85b185391da7 100644
2022-03-23 21:01:34 +00:00
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
2022-04-18 12:38:44 +00:00
@@ -508,4 +508,25 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
2022-03-23 21:01:34 +00:00
/* 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);
2022-04-06 16:03:15 +00:00
+void mark_partner_supported(const char *msg, struct module *mod);
2022-03-23 21:01:34 +00:00
+#else
2022-04-27 12:56:35 +00:00
+static inline void mark_hardware_unmaintained(const char *driver_name, char *fmt, ...) { }
2022-03-23 21:01:34 +00:00
+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) { }
2022-04-06 16:03:15 +00:00
+static inline void mark_partner_supported(const char *msg, struct module *mod) { }
2022-03-23 21:01:34 +00:00
+#endif
+
#endif
diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h
2022-05-25 20:25:48 +00:00
index eafa1d2489fd..8a7165ea78d5 100644
2022-03-23 21:01:34 +00:00
--- 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
2022-05-25 20:25:48 +00:00
index 91c8146649f5..42a73934404e 100644
2022-03-23 21:01:34 +00:00
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
2022-05-25 20:25:48 +00:00
@@ -1550,6 +1550,12 @@
2022-03-23 21:01:34 +00:00
*
* @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:
2022-07-19 17:21:48 +00:00
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 */
2022-03-23 21:01:34 +00:00
diff --git a/include/linux/module.h b/include/linux/module.h
2022-05-27 19:14:17 +00:00
index abd9fa916b7d..f32ae6380ffd 100644
2022-03-23 21:01:34 +00:00
--- a/include/linux/module.h
+++ b/include/linux/module.h
2022-05-27 19:14:17 +00:00
@@ -380,6 +380,7 @@ struct module {
2022-03-23 21:01:34 +00:00
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
2022-05-27 19:14:17 +00:00
index e71161da69c4..25d187e0a84c 100644
2022-03-23 21:01:34 +00:00
--- a/include/linux/panic.h
+++ b/include/linux/panic.h
2022-05-27 19:14:17 +00:00
@@ -68,7 +68,24 @@ static inline void set_arch_panic_timeout(int timeout, int arch_default_timeout)
2022-03-23 21:01:34 +00:00
#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
2022-04-06 16:03:15 +00:00
+#define TAINT_PARTNER_SUPPORTED 26
2022-03-23 21:01:34 +00:00
+#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
2022-06-06 12:05:57 +00:00
index 81a57b498f22..220e81965971 100644
2022-03-23 21:01:34 +00:00
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
2022-06-06 12:05:57 +00:00
@@ -1499,6 +1499,22 @@ int pci_add_dynid(struct pci_driver *drv,
2022-03-23 21:01:34 +00:00
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 <linux/kconfig.h>
+#include <linux/compiler.h>
+#include <linux/stringify.h>
+
+/*
+ * 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(<linux/poll.h>)
+ *
+ * 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(<linux/rhashtable.h>)
+ *
+ * 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) <linux/rh_kabi.h>
+# 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) <linux/rh_kabi.h>
+# 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
2022-05-25 20:25:48 +00:00
index 7fc4e9f49f54..6f0b0b2dc73d 100644
2022-03-23 21:01:34 +00:00
--- a/include/linux/security.h
+++ b/include/linux/security.h
2022-05-25 20:25:48 +00:00
@@ -473,6 +473,7 @@ int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
2022-03-23 21:01:34 +00:00
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)
2022-05-25 20:25:48 +00:00
@@ -1349,6 +1350,10 @@ static inline int security_locked_down(enum lockdown_reason what)
2022-03-23 21:01:34 +00:00
{
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
2022-06-10 14:50:34 +00:00
index c7900e8975f1..ea721c12c251 100644
2022-03-23 21:01:34 +00:00
--- a/init/Kconfig
+++ b/init/Kconfig
2022-06-10 14:50:34 +00:00
@@ -1678,7 +1678,7 @@ config AIO
2022-03-23 21:01:34 +00:00
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
2022-06-13 14:49:07 +00:00
index a7e1f49ab2b3..4a9172cf1728 100644
2022-03-23 21:01:34 +00:00
--- 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
2022-05-26 15:56:17 +00:00
index 2b69306d3c6e..8f60e3254ce1 100644
2022-03-23 21:01:34 +00:00
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
2022-05-26 15:56:17 +00:00
@@ -26,6 +26,7 @@
2022-03-23 21:01:34 +00:00
#include <linux/ctype.h>
#include <linux/nospec.h>
#include <linux/audit.h>
+#include <linux/init.h>
#include <uapi/linux/btf.h>
#include <linux/pgtable.h>
#include <linux/bpf_lsm.h>
2022-05-26 15:56:17 +00:00
@@ -54,6 +55,23 @@ static DEFINE_SPINLOCK(map_idr_lock);
2022-03-23 21:01:34 +00:00
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;
2022-05-26 15:56:17 +00:00
@@ -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;
}
2022-05-27 19:14:17 +00:00
diff --git a/kernel/module/main.c b/kernel/module/main.c
2022-07-12 13:39:57 +00:00
index 0548151dd933..e5b6b3e616d3 100644
2022-05-27 19:14:17 +00:00
--- a/kernel/module/main.c
+++ b/kernel/module/main.c
@@ -523,6 +523,7 @@ static struct module_attribute modinfo_##field = { \
2022-03-23 21:01:34 +00:00
MODINFO_ATTR(version);
MODINFO_ATTR(srcversion);
+MODINFO_ATTR(rhelversion);
static char last_unloaded_module[MODULE_NAME_LEN+1];
2022-05-27 19:14:17 +00:00
@@ -965,6 +966,7 @@ struct module_attribute *modinfo_attrs[] = {
2022-03-23 21:01:34 +00:00
&module_uevent,
&modinfo_version,
&modinfo_srcversion,
+ &modinfo_rhelversion,
&modinfo_initstate,
&modinfo_coresize,
2022-05-27 19:14:17 +00:00
#ifdef CONFIG_ARCH_WANTS_MODULES_DATA_IN_VMALLOC
diff --git a/kernel/module/signing.c b/kernel/module/signing.c
2022-06-03 12:54:44 +00:00
index a2ff4242e623..f0d2be1ee4f1 100644
2022-05-27 19:14:17 +00:00
--- a/kernel/module/signing.c
+++ b/kernel/module/signing.c
2022-06-03 12:54:44 +00:00
@@ -61,10 +61,17 @@ int mod_verify_sig(const void *mod, struct load_info *info)
2022-03-23 21:01:34 +00:00
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;
}
2022-05-27 19:14:17 +00:00
int module_sig_check(struct load_info *info, int flags)
2022-03-23 21:01:34 +00:00
diff --git a/kernel/panic.c b/kernel/panic.c
2022-06-27 13:47:14 +00:00
index a3308af28a21..1ca93bae00de 100644
2022-03-23 21:01:34 +00:00
--- a/kernel/panic.c
+++ b/kernel/panic.c
2022-06-27 13:47:14 +00:00
@@ -428,6 +428,20 @@ const struct taint_flag taint_flags[TAINT_FLAGS_COUNT] = {
2022-03-23 21:01:34 +00:00
[ 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 },
2022-04-06 16:03:15 +00:00
+ [ TAINT_PARTNER_SUPPORTED ] = { 'p', ' ', true },
2022-03-23 21:01:34 +00:00
+ [ 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
2022-04-06 16:03:15 +00:00
index 000000000000..586c3319f530
2022-03-23 21:01:34 +00:00
--- /dev/null
+++ b/kernel/rh_messages.c
2022-04-06 16:03:15 +00:00
@@ -0,0 +1,209 @@
2022-03-23 21:01:34 +00:00
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#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);
2022-04-06 16:03:15 +00:00
+
+/**
+ * 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);
2022-03-23 21:01:34 +00:00
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
2022-06-27 13:47:14 +00:00
index 620dc8c4c814..09f57724f9a4 100644
2022-03-23 21:01:34 +00:00
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
2022-06-06 12:05:57 +00:00
@@ -22,6 +22,7 @@
2022-03-23 21:01:34 +00:00
#include <errno.h>
#include "modpost.h"
#include "../../include/linux/license.h"
+#include "../../include/generated/uapi/linux/version.h"
/* Are we using CONFIG_MODVERSIONS? */
2022-05-27 19:14:17 +00:00
static bool modversions;
2022-06-06 12:05:57 +00:00
@@ -2314,6 +2315,12 @@ static void write_buf(struct buffer *b, const char *fname)
2022-03-23 21:01:34 +00:00
}
}
+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;
2022-06-06 12:05:57 +00:00
@@ -2377,6 +2384,7 @@ static void write_mod_c_file(struct module *mod)
2022-05-27 19:14:17 +00:00
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)) {
2022-03-23 21:01:34 +00:00
diff --git a/scripts/tags.sh b/scripts/tags.sh
2022-06-06 12:05:57 +00:00
index 01fab3d4f90b..2ae5dfc904f9 100755
2022-03-23 21:01:34 +00:00
--- 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
2022-05-25 20:25:48 +00:00
index 093894a640dc..1c43a9462b4b 100644
2022-03-23 21:01:34 +00:00
--- a/security/integrity/platform_certs/load_uefi.c
+++ b/security/integrity/platform_certs/load_uefi.c
2022-05-25 20:25:48 +00:00
@@ -73,7 +73,8 @@ static __init void *get_cert_list(efi_char16_t *name, efi_guid_t *guid,
2022-03-23 21:01:34 +00:00
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;
}
2022-05-25 20:25:48 +00:00
@@ -84,7 +85,8 @@ static __init void *get_cert_list(efi_char16_t *name, efi_guid_t *guid,
2022-03-23 21:01:34 +00:00
*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
2022-05-25 20:25:48 +00:00
index 188b8f782220..dab400de2335 100644
2022-03-23 21:01:34 +00:00
--- a/security/security.c
+++ b/security/security.c
2022-05-25 20:25:48 +00:00
@@ -2617,6 +2617,12 @@ int security_locked_down(enum lockdown_reason what)
2022-03-23 21:01:34 +00:00
}
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)
{
