diff options
37 files changed, 438 insertions, 98 deletions
diff --git a/Documentation/ABI/testing/sysfs-platform-dptf b/Documentation/ABI/testing/sysfs-platform-dptf index 325dc0667dbb..eeed81ca6949 100644 --- a/Documentation/ABI/testing/sysfs-platform-dptf +++ b/Documentation/ABI/testing/sysfs-platform-dptf @@ -27,10 +27,12 @@ KernelVersion: v4.10 Contact: linux-acpi@vger.kernel.org Description: (RO) Display the platform power source - 0x00 = DC - 0x01 = AC - 0x02 = USB - 0x03 = Wireless Charger + bits[3:0] Current power source + 0x00 = DC + 0x01 = AC + 0x02 = USB + 0x03 = Wireless Charger + bits[7:4] Power source sequence number What: /sys/bus/platform/devices/INT3407:00/dptf_power/battery_steady_power Date: Jul, 2016 @@ -38,3 +40,55 @@ KernelVersion: v4.10 Contact: linux-acpi@vger.kernel.org Description: (RO) The maximum sustained power for battery in milliwatts. + +What: /sys/bus/platform/devices/INT3407:00/dptf_power/rest_of_platform_power_mw +Date: June, 2020 +KernelVersion: v5.8 +Contact: linux-acpi@vger.kernel.org +Description: + (RO) Shows the rest (outside of SoC) of worst-case platform power. + +What: /sys/bus/platform/devices/INT3407:00/dptf_power/prochot_confirm +Date: June, 2020 +KernelVersion: v5.8 +Contact: linux-acpi@vger.kernel.org +Description: + (WO) Confirm embedded controller about a prochot notification. + +What: /sys/bus/platform/devices/INT3532:00/dptf_battery/max_platform_power_mw +Date: June, 2020 +KernelVersion: v5.8 +Contact: linux-acpi@vger.kernel.org +Description: + (RO) The maximum platform power that can be supported by the battery in milli watts. + +What: /sys/bus/platform/devices/INT3532:00/dptf_battery/max_steady_state_power_mw +Date: June, 2020 +KernelVersion: v5.8 +Contact: linux-acpi@vger.kernel.org +Description: + (RO) The maximum sustained power for battery in milli watts. + +What: /sys/bus/platform/devices/INT3532:00/dptf_battery/high_freq_impedance_mohm +Date: June, 2020 +KernelVersion: v5.8 +Contact: linux-acpi@vger.kernel.org +Description: + (RO) The high frequency impedance value that can be obtained from battery + fuel gauge in milli Ohms. + +What: /sys/bus/platform/devices/INT3532:00/dptf_battery/no_load_voltage_mv +Date: June, 2020 +KernelVersion: v5.8 +Contact: linux-acpi@vger.kernel.org +Description: + (RO) The no-load voltage that can be obtained from battery fuel gauge in + milli volts. + +What: /sys/bus/platform/devices/INT3532:00/dptf_battery/current_discharge_capbility_ma +Date: June, 2020 +KernelVersion: v5.8 +Contact: linux-acpi@vger.kernel.org +Description: + (RO) The battery discharge current capability obtained from battery fuel gauge in + milli Amps. diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c index a100483b47c4..46ec402e97ed 100644 --- a/arch/arm64/kernel/acpi.c +++ b/arch/arm64/kernel/acpi.c @@ -19,6 +19,7 @@ #include <linux/init.h> #include <linux/irq.h> #include <linux/irqdomain.h> +#include <linux/irq_work.h> #include <linux/memblock.h> #include <linux/of_fdt.h> #include <linux/smp.h> @@ -269,6 +270,7 @@ pgprot_t __acpi_get_mem_attribute(phys_addr_t addr) int apei_claim_sea(struct pt_regs *regs) { int err = -ENOENT; + bool return_to_irqs_enabled; unsigned long current_flags; if (!IS_ENABLED(CONFIG_ACPI_APEI_GHES)) @@ -276,6 +278,12 @@ int apei_claim_sea(struct pt_regs *regs) current_flags = local_daif_save_flags(); + /* current_flags isn't useful here as daif doesn't tell us about pNMI */ + return_to_irqs_enabled = !irqs_disabled_flags(arch_local_save_flags()); + + if (regs) + return_to_irqs_enabled = interrupts_enabled(regs); + /* * SEA can interrupt SError, mask it and describe this as an NMI so * that APEI defers the handling. @@ -284,6 +292,23 @@ int apei_claim_sea(struct pt_regs *regs) nmi_enter(); err = ghes_notify_sea(); nmi_exit(); + + /* + * APEI NMI-like notifications are deferred to irq_work. Unless + * we interrupted irqs-masked code, we can do that now. + */ + if (!err) { + if (return_to_irqs_enabled) { + local_daif_restore(DAIF_PROCCTX_NOIRQ); + __irq_enter(); + irq_work_run(); + __irq_exit(); + } else { + pr_warn_ratelimited("APEI work queued but not completed"); + err = -EINPROGRESS; + } + } + local_daif_restore(current_flags); return err; diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index c9cedc0432d2..dff2d72b0883 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -635,11 +635,13 @@ static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs) inf = esr_to_fault_info(esr); - /* - * Return value ignored as we rely on signal merging. - * Future patches will make this more robust. - */ - apei_claim_sea(regs); + if (user_mode(regs) && apei_claim_sea(regs) == 0) { + /* + * APEI claimed this as a firmware-first notification. + * Some processing deferred to task_work before ret_to_user(). + */ + return 0; + } if (esr & ESR_ELx_FnV) siaddr = NULL; diff --git a/drivers/acpi/acpi_dbg.c b/drivers/acpi/acpi_dbg.c index 7a265c2171c0..6041974c7627 100644 --- a/drivers/acpi/acpi_dbg.c +++ b/drivers/acpi/acpi_dbg.c @@ -745,7 +745,7 @@ static const struct acpi_debugger_ops acpi_aml_debugger = { .notify_command_complete = acpi_aml_notify_command_complete, }; -int __init acpi_aml_init(void) +static int __init acpi_aml_init(void) { int ret; @@ -771,7 +771,7 @@ int __init acpi_aml_init(void) return 0; } -void __exit acpi_aml_exit(void) +static void __exit acpi_aml_exit(void) { if (acpi_aml_initialized) { acpi_unregister_debugger(&acpi_aml_debugger); diff --git a/drivers/acpi/acpi_lpit.c b/drivers/acpi/acpi_lpit.c index 953437a216f6..48e5059d67ca 100644 --- a/drivers/acpi/acpi_lpit.c +++ b/drivers/acpi/acpi_lpit.c @@ -151,10 +151,11 @@ void acpi_init_lpit(void) struct acpi_table_lpit *lpit; status = acpi_get_table(ACPI_SIG_LPIT, 0, (struct acpi_table_header **)&lpit); - if (ACPI_FAILURE(status)) return; lpit_process((u64)lpit + sizeof(*lpit), (u64)lpit + lpit->header.length); + + acpi_put_table((struct acpi_table_header *)lpit); } diff --git a/drivers/acpi/acpi_watchdog.c b/drivers/acpi/acpi_watchdog.c index 6e9ec6e3fe47..5c1e9ea43123 100644 --- a/drivers/acpi/acpi_watchdog.c +++ b/drivers/acpi/acpi_watchdog.c @@ -73,6 +73,7 @@ static const struct acpi_table_wdat *acpi_watchdog_get_wdat(void) } if (acpi_watchdog_uses_rtc(wdat)) { + acpi_put_table((struct acpi_table_header *)wdat); pr_info("Skipping WDAT on this system because it uses RTC SRAM\n"); return NULL; } @@ -117,12 +118,12 @@ void __init acpi_watchdog_init(void) /* Watchdog disabled by BIOS */ if (!(wdat->flags & ACPI_WDAT_ENABLED)) - return; + goto fail_put_wdat; /* Skip legacy PCI WDT devices */ if (wdat->pci_segment != 0xff || wdat->pci_bus != 0xff || wdat->pci_device != 0xff || wdat->pci_function != 0xff) - return; + goto fail_put_wdat; INIT_LIST_HEAD(&resource_list); @@ -188,4 +189,6 @@ void __init acpi_watchdog_init(void) fail_free_resource_list: resource_list_free(&resource_list); +fail_put_wdat: + acpi_put_table((struct acpi_table_header *)wdat); } diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index 38ffa2c0a496..1030a0ce1599 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -290,6 +290,7 @@ ACPI_GLOBAL(struct acpi_external_file *, acpi_gbl_external_file_list); #ifdef ACPI_DEBUGGER ACPI_INIT_GLOBAL(u8, acpi_gbl_abort_method, FALSE); ACPI_INIT_GLOBAL(acpi_thread_id, acpi_gbl_db_thread_id, ACPI_INVALID_THREAD_ID); +ACPI_INIT_GLOBAL(u32, acpi_gbl_next_cmd_num, 1); ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_ini_methods); ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_region_support); diff --git a/drivers/acpi/acpica/acpredef.h b/drivers/acpi/acpica/acpredef.h index cd0f5df0ea23..2cbb56652f1c 100644 --- a/drivers/acpi/acpica/acpredef.h +++ b/drivers/acpi/acpica/acpredef.h @@ -640,10 +640,10 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = { {{"_NIC", METHOD_0ARGS, /* ACPI 6.3 */ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}}, - {{"_NIG", METHOD_1ARGS(ACPI_TYPE_BUFFER), /* ACPI 6.3 */ + {{"_NIG", METHOD_0ARGS, /* ACPI 6.3 */ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}}, - {{"_NIH", METHOD_0ARGS, /* ACPI 6.3 */ + {{"_NIH", METHOD_1ARGS(ACPI_TYPE_BUFFER), /* ACPI 6.3 */ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}}, {{"_NTT", METHOD_0ARGS, diff --git a/drivers/acpi/acpica/dbhistry.c b/drivers/acpi/acpica/dbhistry.c index bb9600b867ee..f5fba14461a6 100644 --- a/drivers/acpi/acpica/dbhistry.c +++ b/drivers/acpi/acpica/dbhistry.c @@ -27,7 +27,6 @@ static HISTORY_INFO acpi_gbl_history_buffer[HISTORY_SIZE]; static u16 acpi_gbl_lo_history = 0; static u16 acpi_gbl_num_history = 0; static u16 acpi_gbl_next_history_index = 0; -u32 acpi_gbl_next_cmd_num = 1; /******************************************************************************* * diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c index c901f5aec739..fa768b3a989e 100644 --- a/drivers/acpi/acpica/dsfield.c +++ b/drivers/acpi/acpica/dsfield.c @@ -177,7 +177,10 @@ acpi_ds_create_buffer_field(union acpi_parse_object *op, arg->common.value.string, ACPI_TYPE_ANY, ACPI_IMODE_LOAD_PASS1, flags, walk_state, &node); - if (ACPI_FAILURE(status)) { + if ((walk_state->parse_flags & ACPI_PARSE_DISASSEMBLE) + && status == AE_ALREADY_EXISTS) { + status = AE_OK; + } else if (ACPI_FAILURE(status)) { ACPI_ERROR_NAMESPACE(walk_state->scope_info, arg->common.value.string, status); return_ACPI_STATUS(status); @@ -514,13 +517,20 @@ acpi_ds_create_field(union acpi_parse_object *op, info.region_node = region_node; status = acpi_ds_get_field_names(&info, walk_state, arg->common.next); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + if (info.region_node->object->region.space_id == - ACPI_ADR_SPACE_PLATFORM_COMM - && !(region_node->object->field.internal_pcc_buffer = - ACPI_ALLOCATE_ZEROED(info.region_node->object->region. - length))) { - return_ACPI_STATUS(AE_NO_MEMORY); + ACPI_ADR_SPACE_PLATFORM_COMM) { + region_node->object->field.internal_pcc_buffer = + ACPI_ALLOCATE_ZEROED(info.region_node->object->region. + length); + if (!region_node->object->field.internal_pcc_buffer) { + return_ACPI_STATUS(AE_NO_MEMORY); + } } + return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/exfield.c b/drivers/acpi/acpica/exfield.c index e85eb31e5075..3323a2ba6a31 100644 --- a/drivers/acpi/acpica/exfield.c +++ b/drivers/acpi/acpica/exfield.c @@ -22,7 +22,7 @@ ACPI_MODULE_NAME("exfield") */ #define ACPI_INVALID_PROTOCOL_ID 0x80 #define ACPI_MAX_PROTOCOL_ID 0x0F -const u8 acpi_protocol_lengths[] = { +static const u8 acpi_protocol_lengths[] = { ACPI_INVALID_PROTOCOL_ID, /* 0 - reserved */ ACPI_INVALID_PROTOCOL_ID, /* 1 - reserved */ 0x00, /* 2 - ATTRIB_QUICK */ diff --git a/drivers/acpi/apei/bert.c b/drivers/acpi/apei/bert.c index 1155fb9dcc3a..19e50fcbf4d6 100644 --- a/drivers/acpi/apei/bert.c +++ b/drivers/acpi/apei/bert.c @@ -119,7 +119,7 @@ static int __init bert_init(void) rc = bert_check_table(bert_tab); if (rc) { pr_err(FW_BUG "table invalid.\n"); - return rc; + goto out_put_bert_tab; } region_len = bert_tab->region_length; @@ -127,7 +127,7 @@ static int __init bert_init(void) rc = apei_resources_add(&bert_resources, bert_tab->address, region_len, true); if (rc) - return rc; + goto out_put_bert_tab; rc = apei_resources_request(&bert_resources, "APEI BERT"); if (rc) goto out_fini; @@ -142,6 +142,8 @@ static int __init bert_init(void) apei_resources_release(&bert_resources); out_fini: apei_resources_fini(&bert_resources); +out_put_bert_tab: + acpi_put_table((struct acpi_table_header *)bert_tab); return rc; } diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c index 086373f8ccb1..133156759551 100644 --- a/drivers/acpi/apei/einj.c +++ b/drivers/acpi/apei/einj.c @@ -692,7 +692,7 @@ static int __init einj_init(void) rc = einj_check_table(einj_tab); if (rc) { pr_warn(FW_BUG "Invalid EINJ table.\n"); - return -EINVAL; + goto err_put_table; } rc = -ENOMEM; @@ -760,6 +760,8 @@ err_release: err_fini: apei_resources_fini(&einj_resources); debugfs_remove_recursive(einj_debug_dir); +err_put_table: + acpi_put_table((struct acpi_table_header *)einj_tab); return rc; } @@ -780,6 +782,7 @@ static void __exit einj_exit(void) apei_resources_release(&einj_resources); apei_resources_fini(&einj_resources); debugfs_remove_recursive(einj_debug_dir); + acpi_put_table((struct acpi_table_header *)einj_tab); } module_init(einj_init); diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c index 2015a0967cbb..2e0b0fcad960 100644 --- a/drivers/acpi/apei/erst.c +++ b/drivers/acpi/apei/erst.c @@ -1122,7 +1122,7 @@ static int __init erst_init(void) rc = erst_check_table(erst_tab); if (rc) { pr_err(FW_BUG "ERST table is invalid.\n"); - goto err; + goto err_put_erst_tab; } apei_resources_init(&erst_resources); @@ -1196,6 +1196,8 @@ err_release: apei_resources_release(&erst_resources); err_fini: apei_resources_fini(&erst_resources); +err_put_erst_tab: + acpi_put_table((struct acpi_table_header *)erst_tab); err: erst_disable = 1; return rc; diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index aabe9c5ee515..81bf71b10d44 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -40,6 +40,7 @@ #include <linux/sched/clock.h> #include <linux/uuid.h> #include <linux/ras.h> +#include <linux/task_work.h> #include <acpi/actbl1.h> #include <acpi/ghes.h> @@ -408,23 +409,46 @@ static void ghes_clear_estatus(struct ghes *ghes, ghes_ack_error(ghes->generic_v2); } -static void ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata, int sev) +/* + * Called as task_work before returning to user-space. + * Ensure any queued work has been done before we return to the context that + * triggered the notification. + */ +static void ghes_kick_task_work(struct callback_head *head) +{ + struct acpi_hest_generic_status *estatus; + struct ghes_estatus_node *estatus_node; + u32 node_len; + + estatus_node = container_of(head, struct ghes_estatus_node, task_work); + if (IS_ENABLED(CONFIG_ACPI_APEI_MEMORY_FAILURE)) + memory_failure_queue_kick(estatus_node->task_work_cpu); + + estatus = GHES_ESTATUS_FROM_NODE(estatus_node); + node_len = GHES_ESTATUS_NODE_LEN(cper_estatus_len(estatus)); + gen_pool_free(ghes_estatus_pool, (unsigned long)estatus_node, node_len); +} + +static bool ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata, + int sev) { -#ifdef CONFIG_ACPI_APEI_MEMORY_FAILURE unsigned long pfn; int flags = -1; int sec_sev = ghes_severity(gdata->error_severity); struct cper_sec_mem_err *mem_err = acpi_hest_get_payload(gdata); + if (!IS_ENABLED(CONFIG_ACPI_APEI_MEMORY_FAILURE)) + return false; + if (!(mem_err->validation_bits & CPER_MEM_VALID_PA)) - return; + return false; pfn = mem_err->physical_addr >> PAGE_SHIFT; if (!pfn_valid(pfn)) { pr_warn_ratelimited(FW_WARN GHES_PFX "Invalid address in generic error data: %#llx\n", mem_err->physical_addr); - return; + return false; } /* iff following two events can be handled properly by now */ @@ -434,9 +458,12 @@ static void ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata, int if (sev == GHES_SEV_RECOVERABLE && sec_sev == GHES_SEV_RECOVERABLE) flags = 0; - if (flags != -1) + if (flags != -1) { memory_failure_queue(pfn, flags); -#endif + return true; + } + + return false; } /* @@ -484,7 +511,7 @@ static void ghes_handle_aer(struct acpi_hest_generic_data *gdata) #endif } -static void ghes_do_proc(struct ghes *ghes, +static bool ghes_do_proc(struct ghes *ghes, const struct acpi_hest_generic_status *estatus) { int sev, sec_sev; @@ -492,6 +519,7 @@ static void ghes_do_proc(struct ghes *ghes, guid_t *sec_type; const guid_t *fru_id = &guid_null; char *fru_text = ""; + bool queued = false; sev = ghes_severity(estatus->error_severity); apei_estatus_for_each_section(estatus, gdata) { @@ -509,7 +537,7 @@ static void ghes_do_proc(struct ghes *ghes, ghes_edac_report_mem_error(sev, mem_err); arch_apei_report_mem_error(sev, mem_err); - ghes_handle_memory_failure(gdata, sev); + queued = ghes_handle_memory_failure(gdata, sev); } else if (guid_equal(sec_type, &CPER_SEC_PCIE)) { ghes_handle_aer(gdata); @@ -526,6 +554,8 @@ static void ghes_do_proc(struct ghes *ghes, gdata->error_data_length); } } + + return queued; } static void __ghes_print_estatus(const char *pfx, @@ -821,7 +851,9 @@ static void ghes_proc_in_irq(struct irq_work *irq_work) struct ghes_estatus_node *estatus_node; struct acpi_hest_generic *generic; struct acpi_hest_generic_status *estatus; + bool task_work_pending; u32 len, node_len; + int ret; llnode = llist_del_all(&ghes_estatus_llist); /* @@ -836,14 +868,26 @@ static void ghes_proc_in_irq(struct irq_work *irq_work) estatus = GHES_ESTATUS_FROM_NODE(estatus_node); len = cper_estatus_len(estatus); node_len = GHES_ESTATUS_NODE_LEN(len); - ghes_do_proc(estatus_node->ghes, estatus); + task_work_pending = ghes_do_proc(estatus_node->ghes, estatus); if (!ghes_estatus_cached(estatus)) { generic = estatus_node->generic; if (ghes_print_estatus(NULL, generic, estatus)) ghes_estatus_cache_add(generic, estatus); } - gen_pool_free(ghes_estatus_pool, (unsigned long)estatus_node, - node_len); + + if (task_work_pending && current->mm != &init_mm) { + estatus_node->task_work.func = ghes_kick_task_work; + estatus_node->task_work_cpu = smp_processor_id(); + ret = task_work_add(current, &estatus_node->task_work, + true); + if (ret) + estatus_node->task_work.func = NULL; + } + + if (!estatus_node->task_work.func) + gen_pool_free(ghes_estatus_pool, + (unsigned long)estatus_node, node_len); + llnode = next; } } @@ -903,6 +947,7 @@ static int ghes_in_nmi_queue_one_entry(struct ghes *ghes, estatus_node->ghes = ghes; estatus_node->generic = ghes->generic; + estatus_node->task_work.func = NULL; estatus = GHES_ESTATUS_FROM_NODE(estatus_node); if (__ghes_read_estatus(estatus, buf_paddr, fixmap_idx, len)) { diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c index 822402480f7d..953a2fae8b15 100644 --- a/drivers/acpi/apei/hest.c +++ b/drivers/acpi/apei/hest.c @@ -243,8 +243,8 @@ void __init acpi_hest_init(void) } else if (ACPI_FAILURE(status)) { const char *msg = acpi_format_exception(status); pr_err(HEST_PFX "Failed to get table, %s\n", msg); - rc = -EINVAL; - goto err; + hest_disable = HEST_DISABLED; + return; } rc = apei_hest_parse(hest_parse_cmc, NULL); @@ -266,4 +266,5 @@ void __init acpi_hest_init(void) return; err: hest_disable = HEST_DISABLED; + acpi_put_table((struct acpi_table_header *)hest_tab); } diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index 78cfc70cb320..3c35e57dd854 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -24,7 +24,6 @@ #define PREFIX "ACPI: " #define ACPI_BUTTON_CLASS "button" -#define ACPI_BUTTON_FILE_INFO "info" #define ACPI_BUTTON_FILE_STATE "state" #define ACPI_BUTTON_TYPE_UNKNOWN 0x00 #define ACPI_BUTTON_NOTIFY_STATUS 0x80 diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c index 8b2e89c20c11..7a99b19bb893 100644 --- a/drivers/acpi/cppc_acpi.c +++ b/drivers/acpi/cppc_acpi.c @@ -350,7 +350,7 @@ static void cppc_chan_tx_done(struct mbox_client *cl, void *msg, int ret) *(u16 *)msg, ret); } -struct mbox_client cppc_mbox_cl = { +static struct mbox_client cppc_mbox_cl = { .tx_done = cppc_chan_tx_done, .knows_txdone = true, }; @@ -597,7 +597,7 @@ bool __weak cpc_ffh_supported(void) * * Return: 0 for success, errno for failure */ -int pcc_data_alloc(int pcc_ss_id) +static int pcc_data_alloc(int pcc_ss_id) { if (pcc_ss_id < 0 || pcc_ss_id >= MAX_PCC_SUBSPACES) return -EINVAL; @@ -846,6 +846,7 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr) "acpi_cppc"); if (ret) { per_cpu(cpc_desc_ptr, pr->id) = NULL; + kobject_put(&cpc_ptr->kobj); goto out_free; } diff --git a/drivers/acpi/dptf/dptf_power.c b/drivers/acpi/dptf/dptf_power.c index e4e8b75d39f0..5fab7e350db8 100644 --- a/drivers/acpi/dptf/dptf_power.c +++ b/drivers/acpi/dptf/dptf_power.c @@ -10,12 +10,19 @@ #include <linux/platform_device.h> /* - * Presentation of attributes which are defined for INT3407. They are: + * Presentation of attributes which are defined for INT3407 and INT3532. + * They are: * PMAX : Maximum platform powe * PSRC : Platform power source * ARTG : Adapter rating * CTYP : Charger type * PBSS : Battery steady power + * PROP : Rest of worst case platform Power + * PBSS : Power Battery Steady State + * PBSS : Power Battery Steady State + * RBHF : High Frequency Impedance + * VBNL : Instantaneous No-Load Voltage + * CMPP : Current Discharge Capability */ #define DPTF_POWER_SHOW(name, object) \ static ssize_t name##_show(struct device *dev,\ @@ -39,12 +46,42 @@ DPTF_POWER_SHOW(platform_power_source, PSRC) DPTF_POWER_SHOW(adapter_rating_mw, ARTG) DPTF_POWER_SHOW(battery_steady_power_mw, PBSS) DPTF_POWER_SHOW(charger_type, CTYP) +DPTF_POWER_SHOW(rest_of_platform_power_mw, PROP) +DPTF_POWER_SHOW(max_steady_state_power_mw, PBSS) +DPTF_POWER_SHOW(high_freq_impedance_mohm, RBHF) +DPTF_POWER_SHOW(no_load_voltage_mv, VBNL) +DPTF_POWER_SHOW(current_discharge_capbility_ma, CMPP); static DEVICE_ATTR_RO(max_platform_power_mw); static DEVICE_ATTR_RO(platform_power_source); static DEVICE_ATTR_RO(adapter_rating_mw); static DEVICE_ATTR_RO(battery_steady_power_mw); static DEVICE_ATTR_RO(charger_type); +static DEVICE_ATTR_RO(rest_of_platform_power_mw); +static DEVICE_ATTR_RO(max_steady_state_power_mw); +static DEVICE_ATTR_RO(high_freq_impedance_mohm); +static DEVICE_ATTR_RO(no_load_voltage_mv); +static DEVICE_ATTR_RO(current_discharge_capbility_ma); + +static ssize_t prochot_confirm_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct acpi_device *acpi_dev = dev_get_drvdata(dev); + acpi_status status; + int seq_no; + + if (kstrtouint(buf, 0, &seq_no) < 0) + return -EINVAL; + + status = acpi_execute_simple_method(acpi_dev->handle, "PBOK", seq_no); + if (ACPI_SUCCESS(status)) + return count; + + return -EINVAL; +} + +static DEVICE_ATTR_WO(prochot_confirm); static struct attribute *dptf_power_attrs[] = { &dev_attr_max_platform_power_mw.attr, @@ -52,6 +89,8 @@ static struct attribute *dptf_power_attrs[] = { &dev_attr_adapter_rating_mw.attr, &dev_attr_battery_steady_power_mw.attr, &dev_attr_charger_type.attr, + &dev_attr_rest_of_platform_power_mw.attr, + &dev_attr_prochot_confirm.attr, NULL }; @@ -60,10 +99,79 @@ static const struct attribute_group dptf_power_attribute_group = { .name = "dptf_power" }; +static struct attribute *dptf_battery_attrs[] = { + &dev_attr_max_platform_power_mw.attr, + &dev_attr_max_steady_state_power_mw.attr, + &dev_attr_high_freq_impedance_mohm.attr, + &dev_attr_no_load_voltage_mv.attr, + &dev_attr_current_discharge_capbility_ma.attr, + NULL +}; + +static const struct attribute_group dptf_battery_attribute_group = { + .attrs = dptf_battery_attrs, + .name = "dptf_battery" +}; + +#define MAX_POWER_CHANGED 0x80 +#define POWER_STATE_CHANGED 0x81 +#define STEADY_STATE_POWER_CHANGED 0x83 +#define POWER_PROP_CHANGE_EVENT 0x84 +#define IMPEDANCED_CHNGED 0x85 +#define VOLTAGE_CURRENT_CHANGED 0x86 + +static long long dptf_participant_type(acpi_handle handle) +{ + unsigned long long ptype; + acpi_status status; + + status = acpi_evaluate_integer(handle, "PTYP", NULL, &ptype); + if (ACPI_FAILURE(status)) + return -ENODEV; + + return ptype; +} + +static void dptf_power_notify(acpi_handle handle, u32 event, void *data) +{ + struct platform_device *pdev = data; + char *attr; + + switch (event) { + case POWER_STATE_CHANGED: + attr = "platform_power_source"; + break; + case POWER_PROP_CHANGE_EVENT: + attr = "rest_of_platform_power_mw"; + break; + case MAX_POWER_CHANGED: + attr = "max_platform_power_mw"; + break; + case STEADY_STATE_POWER_CHANGED: + attr = "max_steady_state_power_mw"; + break; + case VOLTAGE_CURRENT_CHANGED: + attr = "no_load_voltage_mv"; + break; + default: + dev_err(&pdev |