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author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/acpi/osi.c | |
download | linux-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.c | 489 |
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; +} |