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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/acpica/dbutils.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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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 '')
-rw-r--r--drivers/acpi/acpica/dbutils.c421
1 files changed, 421 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/dbutils.c b/drivers/acpi/acpica/dbutils.c
new file mode 100644
index 000000000..58b039dd7
--- /dev/null
+++ b/drivers/acpi/acpica/dbutils.c
@@ -0,0 +1,421 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/*******************************************************************************
+ *
+ * Module Name: dbutils - AML debugger utilities
+ *
+ ******************************************************************************/
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acdebug.h"
+
+#define _COMPONENT ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbutils")
+
+/* Local prototypes */
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+acpi_status acpi_db_second_pass_parse(union acpi_parse_object *root);
+
+void acpi_db_dump_buffer(u32 address);
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_db_match_argument
+ *
+ * PARAMETERS: user_argument - User command line
+ * arguments - Array of commands to match against
+ *
+ * RETURN: Index into command array or ACPI_TYPE_NOT_FOUND if not found
+ *
+ * DESCRIPTION: Search command array for a command match
+ *
+ ******************************************************************************/
+
+acpi_object_type
+acpi_db_match_argument(char *user_argument,
+ struct acpi_db_argument_info *arguments)
+{
+ u32 i;
+
+ if (!user_argument || user_argument[0] == 0) {
+ return (ACPI_TYPE_NOT_FOUND);
+ }
+
+ for (i = 0; arguments[i].name; i++) {
+ if (strstr(ACPI_CAST_PTR(char, arguments[i].name),
+ ACPI_CAST_PTR(char,
+ user_argument)) == arguments[i].name) {
+ return (i);
+ }
+ }
+
+ /* Argument not recognized */
+
+ return (ACPI_TYPE_NOT_FOUND);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_db_set_output_destination
+ *
+ * PARAMETERS: output_flags - Current flags word
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Set the current destination for debugger output. Also sets
+ * the debug output level accordingly.
+ *
+ ******************************************************************************/
+
+void acpi_db_set_output_destination(u32 output_flags)
+{
+
+ acpi_gbl_db_output_flags = (u8)output_flags;
+
+ if ((output_flags & ACPI_DB_REDIRECTABLE_OUTPUT) &&
+ acpi_gbl_db_output_to_file) {
+ acpi_dbg_level = acpi_gbl_db_debug_level;
+ } else {
+ acpi_dbg_level = acpi_gbl_db_console_debug_level;
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_db_dump_external_object
+ *
+ * PARAMETERS: obj_desc - External ACPI object to dump
+ * level - Nesting level.
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Dump the contents of an ACPI external object
+ *
+ ******************************************************************************/
+
+void acpi_db_dump_external_object(union acpi_object *obj_desc, u32 level)
+{
+ u32 i;
+
+ if (!obj_desc) {
+ acpi_os_printf("[Null Object]\n");
+ return;
+ }
+
+ for (i = 0; i < level; i++) {
+ acpi_os_printf(" ");
+ }
+
+ switch (obj_desc->type) {
+ case ACPI_TYPE_ANY:
+
+ acpi_os_printf("[Null Object] (Type=0)\n");
+ break;
+
+ case ACPI_TYPE_INTEGER:
+
+ acpi_os_printf("[Integer] = %8.8X%8.8X\n",
+ ACPI_FORMAT_UINT64(obj_desc->integer.value));
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ acpi_os_printf("[String] Length %.2X = ",
+ obj_desc->string.length);
+ acpi_ut_print_string(obj_desc->string.pointer, ACPI_UINT8_MAX);
+ acpi_os_printf("\n");
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ acpi_os_printf("[Buffer] Length %.2X = ",
+ obj_desc->buffer.length);
+ if (obj_desc->buffer.length) {
+ if (obj_desc->buffer.length > 16) {
+ acpi_os_printf("\n");
+ }
+
+ acpi_ut_debug_dump_buffer(ACPI_CAST_PTR
+ (u8,
+ obj_desc->buffer.pointer),
+ obj_desc->buffer.length,
+ DB_BYTE_DISPLAY, _COMPONENT);
+ } else {
+ acpi_os_printf("\n");
+ }
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+
+ acpi_os_printf("[Package] Contains %u Elements:\n",
+ obj_desc->package.count);
+
+ for (i = 0; i < obj_desc->package.count; i++) {
+ acpi_db_dump_external_object(&obj_desc->package.
+ elements[i], level + 1);
+ }
+ break;
+
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ acpi_os_printf("[Object Reference] = ");
+ acpi_db_display_internal_object(obj_desc->reference.handle,
+ NULL);
+ break;
+
+ case ACPI_TYPE_PROCESSOR:
+
+ acpi_os_printf("[Processor]\n");
+ break;
+
+ case ACPI_TYPE_POWER:
+
+ acpi_os_printf("[Power Resource]\n");
+ break;
+
+ default:
+
+ acpi_os_printf("[Unknown Type] %X\n", obj_desc->type);
+ break;
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_db_prep_namestring
+ *
+ * PARAMETERS: name - String to prepare
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Translate all forward slashes and dots to backslashes.
+ *
+ ******************************************************************************/
+
+void acpi_db_prep_namestring(char *name)
+{
+
+ if (!name) {
+ return;
+ }
+
+ acpi_ut_strupr(name);
+
+ /* Convert a leading forward slash to a backslash */
+
+ if (*name == '/') {
+ *name = '\\';
+ }
+
+ /* Ignore a leading backslash, this is the root prefix */
+
+ if (ACPI_IS_ROOT_PREFIX(*name)) {
+ name++;
+ }
+
+ /* Convert all slash path separators to dots */
+
+ while (*name) {
+ if ((*name == '/') || (*name == '\\')) {
+ *name = '.';
+ }
+
+ name++;
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_db_local_ns_lookup
+ *
+ * PARAMETERS: name - Name to lookup
+ *
+ * RETURN: Pointer to a namespace node, null on failure
+ *
+ * DESCRIPTION: Lookup a name in the ACPI namespace
+ *
+ * Note: Currently begins search from the root. Could be enhanced to use
+ * the current prefix (scope) node as the search beginning point.
+ *
+ ******************************************************************************/
+
+struct acpi_namespace_node *acpi_db_local_ns_lookup(char *name)
+{
+ char *internal_path;
+ acpi_status status;
+ struct acpi_namespace_node *node = NULL;
+
+ acpi_db_prep_namestring(name);
+
+ /* Build an internal namestring */
+
+ status = acpi_ns_internalize_name(name, &internal_path);
+ if (ACPI_FAILURE(status)) {
+ acpi_os_printf("Invalid namestring: %s\n", name);
+ return (NULL);
+ }
+
+ /*
+ * Lookup the name.
+ * (Uses root node as the search starting point)
+ */
+ status = acpi_ns_lookup(NULL, internal_path, ACPI_TYPE_ANY,
+ ACPI_IMODE_EXECUTE,
+ ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE,
+ NULL, &node);
+ if (ACPI_FAILURE(status)) {
+ acpi_os_printf("Could not locate name: %s, %s\n",
+ name, acpi_format_exception(status));
+ }
+
+ ACPI_FREE(internal_path);
+ return (node);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_db_uint32_to_hex_string
+ *
+ * PARAMETERS: value - The value to be converted to string
+ * buffer - Buffer for result (not less than 11 bytes)
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Convert the unsigned 32-bit value to the hexadecimal image
+ *
+ * NOTE: It is the caller's responsibility to ensure that the length of buffer
+ * is sufficient.
+ *
+ ******************************************************************************/
+
+void acpi_db_uint32_to_hex_string(u32 value, char *buffer)
+{
+ int i;
+
+ if (value == 0) {
+ strcpy(buffer, "0");
+ return;
+ }
+
+ buffer[8] = '\0';
+
+ for (i = 7; i >= 0; i--) {
+ buffer[i] = acpi_gbl_upper_hex_digits[value & 0x0F];
+ value = value >> 4;
+ }
+}
+
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_db_second_pass_parse
+ *
+ * PARAMETERS: root - Root of the parse tree
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Second pass parse of the ACPI tables. We need to wait until
+ * second pass to parse the control methods
+ *
+ ******************************************************************************/
+
+acpi_status acpi_db_second_pass_parse(union acpi_parse_object *root)
+{
+ union acpi_parse_object *op = root;
+ union acpi_parse_object *method;
+ union acpi_parse_object *search_op;
+ union acpi_parse_object *start_op;
+ acpi_status status = AE_OK;
+ u32 base_aml_offset;
+ struct acpi_walk_state *walk_state;
+
+ ACPI_FUNCTION_ENTRY();
+
+ acpi_os_printf("Pass two parse ....\n");
+
+ while (op) {
+ if (op->common.aml_opcode == AML_METHOD_OP) {
+ method = op;
+
+ /* Create a new walk state for the parse */
+
+ walk_state =
+ acpi_ds_create_walk_state(0, NULL, NULL, NULL);
+ if (!walk_state) {
+ return (AE_NO_MEMORY);
+ }
+
+ /* Init the Walk State */
+
+ walk_state->parser_state.aml =
+ walk_state->parser_state.aml_start =
+ method->named.data;
+ walk_state->parser_state.aml_end =
+ walk_state->parser_state.pkg_end =
+ method->named.data + method->named.length;
+ walk_state->parser_state.start_scope = op;
+
+ walk_state->descending_callback =
+ acpi_ds_load1_begin_op;
+ walk_state->ascending_callback = acpi_ds_load1_end_op;
+
+ /* Perform the AML parse */
+
+ status = acpi_ps_parse_aml(walk_state);
+
+ base_aml_offset =
+ (method->common.value.arg)->common.aml_offset + 1;
+ start_op = (method->common.value.arg)->common.next;
+ search_op = start_op;
+
+ while (search_op) {
+ search_op->common.aml_offset += base_aml_offset;
+ search_op =
+ acpi_ps_get_depth_next(start_op, search_op);
+ }
+ }
+
+ if (op->common.aml_opcode == AML_REGION_OP) {
+
+ /* TBD: [Investigate] this isn't quite the right thing to do! */
+ /*
+ *
+ * Method = (ACPI_DEFERRED_OP *) Op;
+ * Status = acpi_ps_parse_aml (Op, Method->Body, Method->body_length);
+ */
+ }
+
+ if (ACPI_FAILURE(status)) {
+ break;
+ }
+
+ op = acpi_ps_get_depth_next(root, op);
+ }
+
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_db_dump_buffer
+ *
+ * PARAMETERS: address - Pointer to the buffer
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Print a portion of a buffer
+ *
+ ******************************************************************************/
+
+void acpi_db_dump_buffer(u32 address)
+{
+
+ acpi_os_printf("\nLocation %X:\n", address);
+
+ acpi_dbg_level |= ACPI_LV_TABLES;
+ acpi_ut_debug_dump_buffer(ACPI_TO_POINTER(address), 64, DB_BYTE_DISPLAY,
+ ACPI_UINT32_MAX);
+}
+#endif