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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/acpi/osi.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ...
Diffstat (limited to 'drivers/acpi/osi.c')
-rw-r--r--drivers/acpi/osi.c489
1 files changed, 489 insertions, 0 deletions
diff --git a/drivers/acpi/osi.c b/drivers/acpi/osi.c
new file mode 100644
index 000000000..d4405e1ca
--- /dev/null
+++ b/drivers/acpi/osi.c
@@ -0,0 +1,489 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * osi.c - _OSI implementation
+ *
+ * Copyright (C) 2016 Intel Corporation
+ * Author: Lv Zheng <lv.zheng@intel.com>
+ */
+
+/* Uncomment next line to get verbose printout */
+/* #define DEBUG */
+#define pr_fmt(fmt) "ACPI: " fmt
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/acpi.h>
+#include <linux/dmi.h>
+#include <linux/platform_data/x86/apple.h>
+
+#include "internal.h"
+
+
+#define OSI_STRING_LENGTH_MAX 64
+#define OSI_STRING_ENTRIES_MAX 16
+
+struct acpi_osi_entry {
+ char string[OSI_STRING_LENGTH_MAX];
+ bool enable;
+};
+
+static struct acpi_osi_config {
+ u8 default_disabling;
+ unsigned int linux_enable:1;
+ unsigned int linux_dmi:1;
+ unsigned int linux_cmdline:1;
+ unsigned int darwin_enable:1;
+ unsigned int darwin_dmi:1;
+ unsigned int darwin_cmdline:1;
+} osi_config;
+
+static struct acpi_osi_config osi_config;
+static struct acpi_osi_entry
+osi_setup_entries[OSI_STRING_ENTRIES_MAX] __initdata = {
+ {"Module Device", true},
+ {"Processor Device", true},
+ {"3.0 _SCP Extensions", true},
+ {"Processor Aggregator Device", true},
+};
+
+static u32 acpi_osi_handler(acpi_string interface, u32 supported)
+{
+ if (!strcmp("Linux", interface)) {
+ pr_notice_once(FW_BUG
+ "BIOS _OSI(Linux) query %s%s\n",
+ osi_config.linux_enable ? "honored" : "ignored",
+ osi_config.linux_cmdline ? " via cmdline" :
+ osi_config.linux_dmi ? " via DMI" : "");
+ }
+ if (!strcmp("Darwin", interface)) {
+ pr_notice_once(
+ "BIOS _OSI(Darwin) query %s%s\n",
+ osi_config.darwin_enable ? "honored" : "ignored",
+ osi_config.darwin_cmdline ? " via cmdline" :
+ osi_config.darwin_dmi ? " via DMI" : "");
+ }
+
+ return supported;
+}
+
+void __init acpi_osi_setup(char *str)
+{
+ struct acpi_osi_entry *osi;
+ bool enable = true;
+ int i;
+
+ if (!acpi_gbl_create_osi_method)
+ return;
+
+ if (str == NULL || *str == '\0') {
+ pr_info("_OSI method disabled\n");
+ acpi_gbl_create_osi_method = FALSE;
+ return;
+ }
+
+ if (*str == '!') {
+ str++;
+ if (*str == '\0') {
+ /* Do not override acpi_osi=!* */
+ if (!osi_config.default_disabling)
+ osi_config.default_disabling =
+ ACPI_DISABLE_ALL_VENDOR_STRINGS;
+ return;
+ } else if (*str == '*') {
+ osi_config.default_disabling = ACPI_DISABLE_ALL_STRINGS;
+ for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
+ osi = &osi_setup_entries[i];
+ osi->enable = false;
+ }
+ return;
+ } else if (*str == '!') {
+ osi_config.default_disabling = 0;
+ return;
+ }
+ enable = false;
+ }
+
+ for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
+ osi = &osi_setup_entries[i];
+ if (!strcmp(osi->string, str)) {
+ osi->enable = enable;
+ break;
+ } else if (osi->string[0] == '\0') {
+ osi->enable = enable;
+ strncpy(osi->string, str, OSI_STRING_LENGTH_MAX);
+ break;
+ }
+ }
+}
+
+static void __init __acpi_osi_setup_darwin(bool enable)
+{
+ osi_config.darwin_enable = !!enable;
+ if (enable) {
+ acpi_osi_setup("!");
+ acpi_osi_setup("Darwin");
+ } else {
+ acpi_osi_setup("!!");
+ acpi_osi_setup("!Darwin");
+ }
+}
+
+static void __init acpi_osi_setup_darwin(bool enable)
+{
+ /* Override acpi_osi_dmi_blacklisted() */
+ osi_config.darwin_dmi = 0;
+ osi_config.darwin_cmdline = 1;
+ __acpi_osi_setup_darwin(enable);
+}
+
+/*
+ * The story of _OSI(Linux)
+ *
+ * From pre-history through Linux-2.6.22, Linux responded TRUE upon a BIOS
+ * OSI(Linux) query.
+ *
+ * Unfortunately, reference BIOS writers got wind of this and put
+ * OSI(Linux) in their example code, quickly exposing this string as
+ * ill-conceived and opening the door to an un-bounded number of BIOS
+ * incompatibilities.
+ *
+ * For example, OSI(Linux) was used on resume to re-POST a video card on
+ * one system, because Linux at that time could not do a speedy restore in
+ * its native driver. But then upon gaining quick native restore
+ * capability, Linux has no way to tell the BIOS to skip the time-consuming
+ * POST -- putting Linux at a permanent performance disadvantage. On
+ * another system, the BIOS writer used OSI(Linux) to infer native OS
+ * support for IPMI! On other systems, OSI(Linux) simply got in the way of
+ * Linux claiming to be compatible with other operating systems, exposing
+ * BIOS issues such as skipped device initialization.
+ *
+ * So "Linux" turned out to be a really poor chose of OSI string, and from
+ * Linux-2.6.23 onward we respond FALSE.
+ *
+ * BIOS writers should NOT query _OSI(Linux) on future systems. Linux will
+ * complain on the console when it sees it, and return FALSE. To get Linux
+ * to return TRUE for your system will require a kernel source update to
+ * add a DMI entry, or boot with "acpi_osi=Linux"
+ */
+static void __init __acpi_osi_setup_linux(bool enable)
+{
+ osi_config.linux_enable = !!enable;
+ if (enable)
+ acpi_osi_setup("Linux");
+ else
+ acpi_osi_setup("!Linux");
+}
+
+static void __init acpi_osi_setup_linux(bool enable)
+{
+ /* Override acpi_osi_dmi_blacklisted() */
+ osi_config.linux_dmi = 0;
+ osi_config.linux_cmdline = 1;
+ __acpi_osi_setup_linux(enable);
+}
+
+/*
+ * Modify the list of "OS Interfaces" reported to BIOS via _OSI
+ *
+ * empty string disables _OSI
+ * string starting with '!' disables that string
+ * otherwise string is added to list, augmenting built-in strings
+ */
+static void __init acpi_osi_setup_late(void)
+{
+ struct acpi_osi_entry *osi;
+ char *str;
+ int i;
+ acpi_status status;
+
+ if (osi_config.default_disabling) {
+ status = acpi_update_interfaces(osi_config.default_disabling);
+ if (ACPI_SUCCESS(status))
+ pr_info("Disabled all _OSI OS vendors%s\n",
+ osi_config.default_disabling ==
+ ACPI_DISABLE_ALL_STRINGS ?
+ " and feature groups" : "");
+ }
+
+ for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
+ osi = &osi_setup_entries[i];
+ str = osi->string;
+ if (*str == '\0')
+ break;
+ if (osi->enable) {
+ status = acpi_install_interface(str);
+ if (ACPI_SUCCESS(status))
+ pr_info("Added _OSI(%s)\n", str);
+ } else {
+ status = acpi_remove_interface(str);
+ if (ACPI_SUCCESS(status))
+ pr_info("Deleted _OSI(%s)\n", str);
+ }
+ }
+}
+
+static int __init osi_setup(char *str)
+{
+ if (str && !strcmp("Linux", str))
+ acpi_osi_setup_linux(true);
+ else if (str && !strcmp("!Linux", str))
+ acpi_osi_setup_linux(false);
+ else if (str && !strcmp("Darwin", str))
+ acpi_osi_setup_darwin(true);
+ else if (str && !strcmp("!Darwin", str))
+ acpi_osi_setup_darwin(false);
+ else
+ acpi_osi_setup(str);
+
+ return 1;
+}
+__setup("acpi_osi=", osi_setup);
+
+bool acpi_osi_is_win8(void)
+{
+ return acpi_gbl_osi_data >= ACPI_OSI_WIN_8;
+}
+EXPORT_SYMBOL(acpi_osi_is_win8);
+
+static void __init acpi_osi_dmi_darwin(void)
+{
+ pr_notice("DMI detected to setup _OSI(\"Darwin\"): Apple hardware\n");
+ osi_config.darwin_dmi = 1;
+ __acpi_osi_setup_darwin(true);
+}
+
+static void __init acpi_osi_dmi_linux(bool enable,
+ const struct dmi_system_id *d)
+{
+ pr_notice("DMI detected to setup _OSI(\"Linux\"): %s\n", d->ident);
+ osi_config.linux_dmi = 1;
+ __acpi_osi_setup_linux(enable);
+}
+
+static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
+{
+ acpi_osi_dmi_linux(true, d);
+
+ return 0;
+}
+
+static int __init dmi_disable_osi_vista(const struct dmi_system_id *d)
+{
+ pr_notice("DMI detected: %s\n", d->ident);
+ acpi_osi_setup("!Windows 2006");
+ acpi_osi_setup("!Windows 2006 SP1");
+ acpi_osi_setup("!Windows 2006 SP2");
+
+ return 0;
+}
+
+static int __init dmi_disable_osi_win7(const struct dmi_system_id *d)
+{
+ pr_notice("DMI detected: %s\n", d->ident);
+ acpi_osi_setup("!Windows 2009");
+
+ return 0;
+}
+
+static int __init dmi_disable_osi_win8(const struct dmi_system_id *d)
+{
+ pr_notice("DMI detected: %s\n", d->ident);
+ acpi_osi_setup("!Windows 2012");
+
+ return 0;
+}
+
+/*
+ * Linux default _OSI response behavior is determined by this DMI table.
+ *
+ * Note that _OSI("Linux")/_OSI("Darwin") determined here can be overridden
+ * by acpi_osi=!Linux/acpi_osi=!Darwin command line options.
+ */
+static const struct dmi_system_id acpi_osi_dmi_table[] __initconst = {
+ {
+ .callback = dmi_disable_osi_vista,
+ .ident = "Fujitsu Siemens",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
+ },
+ },
+ {
+ /*
+ * There have a NVIF method in MSI GX723 DSDT need call by Nvidia
+ * driver (e.g. nouveau) when user press brightness hotkey.
+ * Currently, nouveau driver didn't do the job and it causes there
+ * have a infinite while loop in DSDT when user press hotkey.
+ * We add MSI GX723's dmi information to this table for workaround
+ * this issue.
+ * Will remove MSI GX723 from the table after nouveau grows support.
+ */
+ .callback = dmi_disable_osi_vista,
+ .ident = "MSI GX723",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "GX723"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_vista,
+ .ident = "Sony VGN-NS10J_S",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS10J_S"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_vista,
+ .ident = "Sony VGN-SR290J",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_vista,
+ .ident = "VGN-NS50B_L",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS50B_L"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_vista,
+ .ident = "VGN-SR19XN",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR19XN"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_vista,
+ .ident = "Toshiba Satellite L355",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Satellite L355"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win7,
+ .ident = "ASUS K50IJ",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "K50IJ"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_vista,
+ .ident = "Toshiba P305D",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_vista,
+ .ident = "Toshiba NB100",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "NB100"),
+ },
+ },
+
+ /*
+ * The wireless hotkey does not work on those machines when
+ * returning true for _OSI("Windows 2012")
+ */
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "Dell Inspiron 7737",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7737"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "Dell Inspiron 7537",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7537"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "Dell Inspiron 5437",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5437"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "Dell Inspiron 3437",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 3437"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "Dell Vostro 3446",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3446"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "Dell Vostro 3546",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3546"),
+ },
+ },
+
+ /*
+ * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
+ * Linux ignores it, except for the machines enumerated below.
+ */
+
+ /*
+ * Without this EEEpc exports a non working WMI interface, with
+ * this it exports a working "good old" eeepc_laptop interface,
+ * fixing both brightness control, and rfkill not working.
+ */
+ {
+ .callback = dmi_enable_osi_linux,
+ .ident = "Asus EEE PC 1015PX",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "1015PX"),
+ },
+ },
+ {}
+};
+
+static __init void acpi_osi_dmi_blacklisted(void)
+{
+ dmi_check_system(acpi_osi_dmi_table);
+
+ /* Enable _OSI("Darwin") for Apple platforms. */
+ if (x86_apple_machine)
+ acpi_osi_dmi_darwin();
+}
+
+int __init early_acpi_osi_init(void)
+{
+ acpi_osi_dmi_blacklisted();
+
+ return 0;
+}
+
+int __init acpi_osi_init(void)
+{
+ acpi_install_interface_handler(acpi_osi_handler);
+ acpi_osi_setup_late();
+
+ return 0;
+}