diff options
Diffstat (limited to 'drivers/acpi')
26 files changed, 299 insertions, 231 deletions
diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c index d269a8f3329..446aced33af 100644 --- a/drivers/acpi/acpi_pad.c +++ b/drivers/acpi/acpi_pad.c @@ -46,6 +46,8 @@ static unsigned long power_saving_mwait_eax; static unsigned char tsc_detected_unstable; static unsigned char tsc_marked_unstable; +static unsigned char lapic_detected_unstable; +static unsigned char lapic_marked_unstable; static void power_saving_mwait_init(void) { @@ -75,9 +77,6 @@ static void power_saving_mwait_init(void) power_saving_mwait_eax = (highest_cstate << MWAIT_SUBSTATE_SIZE) | (highest_subcstate - 1); - for_each_online_cpu(i) - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ON, &i); - #if defined(CONFIG_GENERIC_TIME) && defined(CONFIG_X86) switch (boot_cpu_data.x86_vendor) { case X86_VENDOR_AMD: @@ -86,13 +85,15 @@ static void power_saving_mwait_init(void) * AMD Fam10h TSC will tick in all * C/P/S0/S1 states when this bit is set. */ - if (boot_cpu_has(X86_FEATURE_NONSTOP_TSC)) - return; - - /*FALL THROUGH*/ + if (!boot_cpu_has(X86_FEATURE_NONSTOP_TSC)) + tsc_detected_unstable = 1; + if (!boot_cpu_has(X86_FEATURE_ARAT)) + lapic_detected_unstable = 1; + break; default: - /* TSC could halt in idle */ + /* TSC & LAPIC could halt in idle */ tsc_detected_unstable = 1; + lapic_detected_unstable = 1; } #endif } @@ -180,10 +181,20 @@ static int power_saving_thread(void *data) mark_tsc_unstable("TSC halts in idle"); tsc_marked_unstable = 1; } + if (lapic_detected_unstable && !lapic_marked_unstable) { + int i; + /* LAPIC could halt in idle, so notify users */ + for_each_online_cpu(i) + clockevents_notify( + CLOCK_EVT_NOTIFY_BROADCAST_ON, + &i); + lapic_marked_unstable = 1; + } local_irq_disable(); cpu = smp_processor_id(); - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, - &cpu); + if (lapic_marked_unstable) + clockevents_notify( + CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu); stop_critical_timings(); __monitor((void *)¤t_thread_info()->flags, 0, 0); @@ -192,8 +203,9 @@ static int power_saving_thread(void *data) __mwait(power_saving_mwait_eax, 1); start_critical_timings(); - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, - &cpu); + if (lapic_marked_unstable) + clockevents_notify( + CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu); local_irq_enable(); if (jiffies > expire_time) { diff --git a/drivers/acpi/acpica/acconfig.h b/drivers/acpi/acpica/acconfig.h index 33181ad350d..b17d8de9f6f 100644 --- a/drivers/acpi/acpica/acconfig.h +++ b/drivers/acpi/acpica/acconfig.h @@ -119,6 +119,10 @@ #define ACPI_MAX_LOOP_ITERATIONS 0xFFFF +/* Maximum sleep allowed via Sleep() operator */ + +#define ACPI_MAX_SLEEP 20000 /* Two seconds */ + /****************************************************************************** * * ACPI Specification constants (Do not change unless the specification changes) diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h index 64d1e5c2d4a..c3f43daa8be 100644 --- a/drivers/acpi/acpica/acevents.h +++ b/drivers/acpi/acpica/acevents.h @@ -80,10 +80,6 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list); acpi_status acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info); -acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info); - -acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info); - struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device, u32 gpe_number); diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index 9070f1fe8f1..899d68afc3c 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -125,6 +125,14 @@ u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE); */ u8 ACPI_INIT_GLOBAL(acpi_gbl_copy_dsdt_locally, FALSE); +/* + * Optionally truncate I/O addresses to 16 bits. Provides compatibility + * with other ACPI implementations. NOTE: During ACPICA initialization, + * this value is set to TRUE if any Windows OSI strings have been + * requested by the BIOS. + */ +u8 ACPI_INIT_GLOBAL(acpi_gbl_truncate_io_addresses, FALSE); + /* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */ struct acpi_table_fadt acpi_gbl_FADT; diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h index 5900f135dc6..32391588e16 100644 --- a/drivers/acpi/acpica/achware.h +++ b/drivers/acpi/acpica/achware.h @@ -90,7 +90,11 @@ acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width); /* * hwgpe - GPE support */ -acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info); +u32 acpi_hw_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info, + struct acpi_gpe_register_info *gpe_register_info); + +acpi_status +acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 action); acpi_status acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info *gpe_event_info); diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c index a221ad40416..7c2c336006a 100644 --- a/drivers/acpi/acpica/evgpe.c +++ b/drivers/acpi/acpica/evgpe.c @@ -69,7 +69,7 @@ acpi_status acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info) { struct acpi_gpe_register_info *gpe_register_info; - u8 register_bit; + u32 register_bit; ACPI_FUNCTION_TRACE(ev_update_gpe_enable_masks); @@ -78,9 +78,8 @@ acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info) return_ACPI_STATUS(AE_NOT_EXIST); } - register_bit = (u8) - (1 << - (gpe_event_info->gpe_number - gpe_register_info->base_gpe_number)); + register_bit = acpi_hw_gpe_register_bit(gpe_event_info, + gpe_register_info); /* Clear the wake/run bits up front */ @@ -100,106 +99,6 @@ acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info) return_ACPI_STATUS(AE_OK); } -/******************************************************************************* - * - * FUNCTION: acpi_ev_enable_gpe - * - * PARAMETERS: gpe_event_info - GPE to enable - * - * RETURN: Status - * - * DESCRIPTION: Hardware-enable a GPE. Always enables the GPE, regardless - * of type or number of references. - * - * Note: The GPE lock should be already acquired when this function is called. - * - ******************************************************************************/ - -acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info) -{ - acpi_status status; - - - ACPI_FUNCTION_TRACE(ev_enable_gpe); - - - /* - * We will only allow a GPE to be enabled if it has either an - * associated method (_Lxx/_Exx) or a handler. Otherwise, the - * GPE will be immediately disabled by acpi_ev_gpe_dispatch the - * first time it fires. - */ - if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)) { - return_ACPI_STATUS(AE_NO_HANDLER); - } - - /* Ensure the HW enable masks are current */ - - status = acpi_ev_update_gpe_enable_masks(gpe_event_info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Clear the GPE (of stale events) */ - - status = acpi_hw_clear_gpe(gpe_event_info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Enable the requested GPE */ - - status = acpi_hw_write_gpe_enable_reg(gpe_event_info); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_disable_gpe - * - * PARAMETERS: gpe_event_info - GPE to disable - * - * RETURN: Status - * - * DESCRIPTION: Hardware-disable a GPE. Always disables the requested GPE, - * regardless of the type or number of references. - * - * Note: The GPE lock should be already acquired when this function is called. - * - ******************************************************************************/ - -acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_disable_gpe); - - - /* - * Note: Always disable the GPE, even if we think that that it is already - * disabled. It is possible that the AML or some other code has enabled - * the GPE behind our back. - */ - - /* Ensure the HW enable masks are current */ - - status = acpi_ev_update_gpe_enable_masks(gpe_event_info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Always H/W disable this GPE, even if we don't know the GPE type. - * Simply clear the enable bit for this particular GPE, but do not - * write out the current GPE enable mask since this may inadvertently - * enable GPEs too early. An example is a rogue GPE that has arrived - * during ACPICA initialization - possibly because AML or other code - * has enabled the GPE. - */ - status = acpi_hw_low_disable_gpe(gpe_event_info); - return_ACPI_STATUS(status); -} - /******************************************************************************* * @@ -451,10 +350,6 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context) return_VOID; } - /* Update the GPE register masks for return to enabled state */ - - (void)acpi_ev_update_gpe_enable_masks(gpe_event_info); - /* * Take a snapshot of the GPE info for this level - we copy the info to * prevent a race condition with remove_handler/remove_block. @@ -607,7 +502,7 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number) * Disable the GPE, so it doesn't keep firing before the method has a * chance to run (it runs asynchronously with interrupts enabled). */ - status = acpi_ev_disable_gpe(gpe_event_info); + status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "Unable to disable GPE[0x%2X]", @@ -644,7 +539,7 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number) * Disable the GPE. The GPE will remain disabled a handler * is installed or ACPICA is restarted. */ - status = acpi_ev_disable_gpe(gpe_event_info); + status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "Unable to disable GPE[0x%2X]", diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c index 7c28f2d9fd3..341a38ce8aa 100644 --- a/drivers/acpi/acpica/evgpeblk.c +++ b/drivers/acpi/acpica/evgpeblk.c @@ -500,6 +500,19 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device, gpe_index = (i * ACPI_GPE_REGISTER_WIDTH) + j; gpe_event_info = &gpe_block->event_info[gpe_index]; + gpe_number = gpe_index + gpe_block->block_base_number; + + /* + * If the GPE has already been enabled for runtime + * signaling, make sure it remains enabled, but do not + * increment its reference counter. + */ + if (gpe_event_info->runtime_count) { + acpi_set_gpe(gpe_device, gpe_number, + ACPI_GPE_ENABLE); + gpe_enabled_count++; + continue; + } if (gpe_event_info->flags & ACPI_GPE_CAN_WAKE) { wake_gpe_count++; @@ -516,7 +529,6 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device, /* Enable this GPE */ - gpe_number = gpe_index + gpe_block->block_base_number; status = acpi_enable_gpe(gpe_device, gpe_number, ACPI_GPE_TYPE_RUNTIME); if (ACPI_FAILURE(status)) { diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c index cc825023012..4a531cdf794 100644 --- a/drivers/acpi/acpica/evxface.c +++ b/drivers/acpi/acpica/evxface.c @@ -719,13 +719,6 @@ acpi_install_gpe_handler(acpi_handle gpe_device, handler->context = context; handler->method_node = gpe_event_info->dispatch.method_node; - /* Disable the GPE before installing the handler */ - - status = acpi_ev_disable_gpe(gpe_event_info); - if (ACPI_FAILURE (status)) { - goto unlock_and_exit; - } - /* Install the handler */ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c index d5a5efc043b..18b3f1468b7 100644 --- a/drivers/acpi/acpica/evxfevnt.c +++ b/drivers/acpi/acpica/evxfevnt.c @@ -70,6 +70,7 @@ acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, acpi_status acpi_enable(void) { acpi_status status; + int retry; ACPI_FUNCTION_TRACE(acpi_enable); @@ -98,16 +99,18 @@ acpi_status acpi_enable(void) /* Sanity check that transition succeeded */ - if (acpi_hw_get_mode() != ACPI_SYS_MODE_ACPI) { - ACPI_ERROR((AE_INFO, - "Hardware did not enter ACPI mode")); - return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); + for (retry = 0; retry < 30000; ++retry) { + if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) { + if (retry != 0) + ACPI_WARNING((AE_INFO, + "Platform took > %d00 usec to enter ACPI mode", retry)); + return_ACPI_STATUS(AE_OK); + } + acpi_os_stall(100); /* 100 usec */ } - ACPI_DEBUG_PRINT((ACPI_DB_INIT, - "Transition to ACPI mode successful\n")); - - return_ACPI_STATUS(AE_OK); + ACPI_ERROR((AE_INFO, "Hardware did not enter ACPI mode")); + return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); } ACPI_EXPORT_SYMBOL(acpi_enable) @@ -210,6 +213,44 @@ ACPI_EXPORT_SYMBOL(acpi_enable_event) /******************************************************************************* * + * FUNCTION: acpi_clear_and_enable_gpe + * + * PARAMETERS: gpe_event_info - GPE to enable + * + * RETURN: Status + * + * DESCRIPTION: Clear the given GPE from stale events and enable it. + * + ******************************************************************************/ +static acpi_status +acpi_clear_and_enable_gpe(struct acpi_gpe_event_info *gpe_event_info) +{ + acpi_status status; + + /* + * We will only allow a GPE to be enabled if it has either an + * associated method (_Lxx/_Exx) or a handler. Otherwise, the + * GPE will be immediately disabled by acpi_ev_gpe_dispatch the + * first time it fires. + */ + if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)) { + return_ACPI_STATUS(AE_NO_HANDLER); + } + + /* Clear the GPE (of stale events) */ + status = acpi_hw_clear_gpe(gpe_event_info); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Enable the requested GPE */ + status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_ENABLE); + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * * FUNCTION: acpi_set_gpe * * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1 @@ -249,11 +290,11 @@ acpi_status acpi_set_gpe(acpi_handle gpe_device, u32 gpe_number, u8 action) switch (action) { case ACPI_GPE_ENABLE: - status = acpi_ev_enable_gpe(gpe_event_info); + status = acpi_clear_and_enable_gpe(gpe_event_info); break; case ACPI_GPE_DISABLE: - status = acpi_ev_disable_gpe(gpe_event_info); + status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE); break; default: @@ -316,7 +357,11 @@ acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 gpe_type) gpe_event_info->runtime_count++; if (gpe_event_info->runtime_count == 1) { - status = acpi_ev_enable_gpe(gpe_event_info); + status = acpi_ev_update_gpe_enable_masks(gpe_event_info); + if (ACPI_SUCCESS(status)) { + status = acpi_clear_and_enable_gpe(gpe_event_info); + } + if (ACPI_FAILURE(status)) { gpe_event_info->runtime_count--; goto unlock_and_exit; @@ -343,7 +388,7 @@ acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 gpe_type) */ gpe_event_info->wakeup_count++; if (gpe_event_info->wakeup_count == 1) { - (void)acpi_ev_update_gpe_enable_masks(gpe_event_info); + status = acpi_ev_update_gpe_enable_masks(gpe_event_info); } } @@ -403,7 +448,12 @@ acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 gpe_type gpe_event_info->runtime_count--; if (!gpe_event_info->runtime_count) { - status = acpi_ev_disable_gpe(gpe_event_info); + status = acpi_ev_update_gpe_enable_masks(gpe_event_info); + if (ACPI_SUCCESS(status)) { + status = acpi_hw_low_set_gpe(gpe_event_info, + ACPI_GPE_DISABLE); + } + if (ACPI_FAILURE(status)) { gpe_event_info->runtime_count++; goto unlock_and_exit; @@ -424,7 +474,7 @@ acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 gpe_type gpe_event_info->wakeup_count--; if (!gpe_event_info->wakeup_count) { - (void)acpi_ev_update_gpe_enable_masks(gpe_event_info); + status = acpi_ev_update_gpe_enable_masks(gpe_event_info); } } diff --git a/drivers/acpi/acpica/exsystem.c b/drivers/acpi/acpica/exsystem.c index 6d32e09327f..675aaa91a77 100644 --- a/drivers/acpi/acpica/exsystem.c +++ b/drivers/acpi/acpica/exsystem.c @@ -201,6 +201,14 @@ acpi_status acpi_ex_system_do_sleep(u64 how_long) acpi_ex_relinquish_interpreter(); + /* + * For compatibility with other ACPI implementations and to prevent + * accidental deep sleeps, limit the sleep time to something reasonable. + */ + if (how_long > ACPI_MAX_SLEEP) { + how_long = ACPI_MAX_SLEEP; + } + acpi_os_sleep(how_long); /* And now we must get the interpreter again */ diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c index bd72319a38f..3450309c278 100644 --- a/drivers/acpi/acpica/hwgpe.c +++ b/drivers/acpi/acpica/hwgpe.c @@ -57,21 +57,47 @@ acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, /****************************************************************************** * - * FUNCTION: acpi_hw_low_disable_gpe + * FUNCTION: acpi_hw_gpe_register_bit + * + * PARAMETERS: gpe_event_info - Info block for the GPE + * gpe_register_info - Info block for the GPE register + * + * RETURN: Status + * + * DESCRIPTION: Compute GPE enable mask with one bit corresponding to the given + * GPE set. + * + ******************************************************************************/ + +u32 acpi_hw_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info, + struct acpi_gpe_register_info *gpe_register_info) +{ + return (u32)1 << (gpe_event_info->gpe_number - + gpe_register_info->base_gpe_number); +} + +/****************************************************************************** + * + * FUNCTION: acpi_hw_low_set_gpe * * PARAMETERS: gpe_event_info - Info block for the GPE to be disabled + * action - Enable or disable * * RETURN: Status * - * DESCRIPTION: Disable a single GPE in the enable register. + * DESCRIPTION: Enable or disable a single GPE in its enable register. * ******************************************************************************/ -acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) +acpi_status +acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 action) { struct acpi_gpe_register_info *gpe_register_info; acpi_status status; u32 enable_mask; + u32 register_bit; + + ACPI_FUNCTION_ENTRY(); /* Get the info block for the entire GPE register */ @@ -87,11 +113,27 @@ acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) return (status); } - /* Clear just the bit that corresponds to this GPE */ + /* Set ot clear just the bit that corresponds to this GPE */ - ACPI_CLEAR_BIT(enable_mask, ((u32)1 << - (gpe_event_info->gpe_number - - gpe_register_info->base_gpe_number))); + register_bit = acpi_hw_gpe_register_bit(gpe_event_info, + gpe_register_info); + switch (action) { + case ACPI_GPE_COND_ENABLE: + if (!(register_bit & gpe_register_info->enable_for_run)) + return (AE_BAD_PARAMETER); + + case ACPI_GPE_ENABLE: + ACPI_SET_BIT(enable_mask, register_bit); + break; + + case ACPI_GPE_DISABLE: + ACPI_CLEAR_BIT(enable_mask, register_bit); + break; + + default: + ACPI_ERROR((AE_INFO, "Invalid action\n")); + return (AE_BAD_PARAMETER); + } /* Write the updated enable mask */ @@ -116,23 +158,11 @@ acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) acpi_status acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info * gpe_event_info) { - struct acpi_gpe_register_info *gpe_register_info; acpi_status status; ACPI_FUNCTION_ENTRY(); - /* Get the info block for the entire GPE register */ - - gpe_register_info = gpe_event_info->register_info; - if (!gpe_register_info) { - return (AE_NOT_EXIST); - } - - /* Write the entire GPE (runtime) enable register */ - - status = acpi_hw_write(gpe_register_info->enable_for_run, - &gpe_register_info->enable_address); - + status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_COND_ENABLE); return (status); } @@ -150,21 +180,28 @@ acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info * gpe_event_info) acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info * gpe_event_info) { + struct acpi_gpe_register_info *gpe_register_info; acpi_status status; - u8 register_bit; + u32 register_bit; ACPI_FUNCTION_ENTRY(); - register_bit = (u8)(1 << - (gpe_event_info->gpe_number - - gpe_event_info->register_info->base_gpe_number)); + /* Get the info block for the entire GPE register */ + + gpe_register_info = gpe_event_info->register_info; + if (!gpe_register_info) { + return (AE_NOT_EXIST); + } + + register_bit = acpi_hw_gpe_register_bit(gpe_event_info, + gpe_register_info); /* * Write a one to the appropriate bit in the status register to * clear this GPE. */ status = acpi_hw_write(register_bit, - &gpe_event_info->register_info->status_address); + &gpe_register_info->status_address); return (status); } @@ -187,7 +224,7 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info, acpi_event_status * event_status) { u32 in_byte; - u8 register_bit; + u32 register_bit; struct acpi_gpe_register_info *gpe_register_info; acpi_status status; acpi_event_status local_event_status = 0; @@ -204,9 +241,8 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info, /* Get the register bitmask for this GPE */ - register_bit = (u8)(1 << - (gpe_event_info->gpe_number - - gpe_event_info->register_info->base_gpe_number)); + register_bit = acpi_hw_gpe_register_bit(gpe_event_info, + gpe_register_info); /* GPE currently enabled? (enabled for runtime?) */ diff --git a/drivers/acpi/acpica/hwvalid.c b/drivers/acpi/acpica/hwvalid.c index c10d587c164..e1d9c777b21 100644 --- a/drivers/acpi/acpica/hwvalid.c +++ b/drivers/acpi/acpica/hwvalid.c @@ -222,6 +222,12 @@ acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width) u32 one_byte; u32 i; + /* Truncate address to 16 bits if requested */ + + if (acpi_gbl_truncate_io_addresses) { + address &= ACPI_UINT16_MAX; + } + /* Validate the entire request and perform the I/O */ status = acpi_hw_validate_io_request(address, width); @@ -279,6 +285,12 @@ acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width) acpi_status status; u32 i; + /* Truncate address to 16 bits if requested */ + + if (acpi_gbl_truncate_io_addresses) { + address &= ACPI_UINT16_MAX; + } + /* Validate the entire request and perform the I/O */ status = acpi_hw_validate_io_request(address, width); diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c index 9bd6f050f29..4e5272c313e 100644 --- a/drivers/acpi/acpica/nsinit.c +++ b/drivers/acpi/acpica/nsinit.c @@ -193,6 +193,15 @@ acpi_status acpi_ns_initialize_devices(void) acpi_ns_init_one_device, NULL, &info, NULL); + /* + * Any _OSI requests should be completed by now. If the BIOS has + * requested any Windows OSI strings, we will always truncate + * I/O addresses to 16 bits -- for Windows compatibility. + */ + if (acpi_gbl_osi_data >= ACPI_OSI_WIN_2000) { + acpi_gbl_truncate_io_addresses = TRUE; + } + ACPI_FREE(info.evaluate_info); if (ACPI_FAILURE(status)) { goto error_exit; diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c index db3946e9c66..216e1e948ff 100644 --- a/drivers/acpi/apei/apei-base.c +++ b/drivers/acpi/apei/apei-base.c @@ -34,6 +34,7 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/acpi.h> +#include <linux/slab.h> #include <linux/io.h> #include <linux/kref.h> #include <linux/rculist.h> diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c index 2ebc3911550..864dd46c346 100644 --- a/drivers/acpi/apei/erst.c +++ b/drivers/acpi/apei/erst.c @@ -781,7 +781,7 @@ static int __init erst_init(void) status = acpi_get_table(ACPI_SIG_ERST, 0, (struct acpi_table_header **)&erst_tab); if (status == AE_NOT_FOUND) { - pr_err(ERST_PFX "Table is not found!\n"); + pr_info(ERST_PFX "Table is not found!\n"); goto err; } else if (ACPI_FAILURE(status)) { const char *msg = acpi_format_exception(status); diff --git a/drivers/acpi/atomicio.c b/drivers/acpi/atomicio.c index 814b1924961..8f8bd736d4f 100644 --- a/drivers/acpi/atomicio.c +++ b/drivers/acpi/atomicio.c @@ -31,6 +31,7 @@ #include <linux/kref.h> #include <linux/rculist.h> #include <linux/interrupt.h> +#include <linux/slab.h> #include <acpi/atomicio.h> #define ACPI_PFX "ACPI: " diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 3026e3fa83e..dc58402b0a1 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -868,9 +868,15 @@ static void acpi_battery_remove_fs(struct acpi_device *device) static void acpi_battery_notify(struct acpi_device *device, u32 event) { struct acpi_battery *battery = acpi_driver_data(device); +#ifdef CONFIG_ACPI_SYSFS_POWER + struct device *old; +#endif if (!battery) return; +#ifdef CONFIG_ACPI_SYSFS_POWER + old = battery->bat.dev; +#endif acpi_battery_update(battery); acpi_bus_generate_proc_event(device, event, acpi_battery_present(battery)); @@ -879,7 +885,7 @@ static void acpi_battery_notify(struct acpi_device *device, u32 event) acpi_battery_present(battery)); #ifdef CONFIG_ACPI_SYSFS_POWER /* acpi_battery_update could remove power_supply object */ - if (battery->bat.dev) + if (old && battery->bat.dev) power_supply_changed(&battery->bat); #endif } diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index 2815df66f6f..2bb28b9d91c 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -214,7 +214,15 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { .ident = "Sony VGN-SR290J", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), - DMI_MATCH(DMI_PRODUCT_NAME, "Sony VGN-SR290J"), + 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"), }, }, { diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index fd51c4ab482..7d857dabdde 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -425,7 +425,7 @@ static int acpi_button_add(struct acpi_device *device) /* Button's GPE is run-wake GPE */ acpi_enable_gpe(device->wakeup.gpe_device, device->wakeup.gpe_number, - ACPI_GPE_TYPE_WAKE_RUN); + ACPI_GPE_TYPE_RUNTIME); device->wakeup.run_wake_count++; device->wakeup.state.enabled = 1; } @@ -449,7 +449,7 @@ static int acpi_button_remove(struct acpi_device *device, int type) if (device->wakeup.flags.valid) { acpi_disable_gpe(device->wakeup.gpe_device, device->wakeup.gpe_number, - ACPI_GPE_TYPE_WAKE_RUN); + ACPI_GPE_TYPE_RUNTIME); device->wakeup.run_wake_count--; device->wakeup.state.enabled = 0; } diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index acf2ab24984..8a3b840c0bb 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -347,7 +347,6 @@ static int __init acpi_fan_init(void) { int result = 0; - #ifdef CONFIG_ACPI_PROCFS acpi_fan_dir = proc_mkdir(ACPI_FAN_CLASS, acpi_root_dir); if (!acpi_fan_dir) @@ -356,7 +355,9 @@ static int __init acpi_fan_init(void) result = acpi_bus_register_driver(&acpi_fan_driver); if (result < 0) { +#ifdef CONFIG_ACPI_PROCFS remove_proc_entry(ACPI_FAN_CLASS, acpi_root_dir); +#endif return -ENODEV; } diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 51284351418..e9699aaed10 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -223,7 +223,7 @@ static bool processor_physically_present(acpi_handle handle) type = (acpi_type == ACPI_TYPE_DEVICE) ? 1 : 0; cpuid = acpi_get_cpuid(handle, type, acpi_id); - if (cpuid == -1) + if ((cpuid == -1) && (num_possible_cpus() > 1)) return false; return true; diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index b1034a9ada4..38ea0cc6dc4 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -581,6 +581,11 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device) return 0; } +#ifdef CONFIG_SMP + if (pr->id >= setup_max_cpus && pr->id != 0) + return 0; +#endif + BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0)); /* diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index b1b385692f4..e9a8026d39f 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -76,14 +76,19 @@ static unsigned int max_cstate __read_mostly = ACPI_PROCESSOR_MAX_POWER; module_param(max_cstate, uint, 0000); static unsigned int nocst __read_mostly; module_param(nocst, uint, 0000); +static int bm_check_disable __read_mostly; +module_param(bm_check_disable, uint, 0000); static unsigned int latency_factor __read_mostly = 2; module_param(latency_factor, uint, 0644); +#ifdef CONFIG_ACPI_PROCFS static u64 us_to_pm_timer_ticks(s64 t) { return div64_u64(t * PM_TIMER_FREQUENCY, 1000000); } +#endif + /* * IBM ThinkPad R40e crashes mysteriously when going into C2 or C3. * For now disable this. Probably a bug somewhere else. @@ -763,6 +768,9 @@ static int acpi_idle_bm_check(void) { u32 bm_status = 0; + if (bm_check_disable) + return 0; + acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_STATUS, &bm_status); if (bm_status) acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_STATUS, 1); @@ -947,7 +955,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, if (acpi_idle_suspend) return(acpi_idle_enter_c1(dev, state)); - if (acpi_idle_bm_check()) { + if (!cx->bm_sts_skip && acpi_idle_bm_check()) { if (dev->safe_state) { dev->last_state = dev->safe_state; return dev->safe_state->enter(dev, dev->safe_state); diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 3fb4bdea7e0..2862c781b37 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -82,6 +82,20 @@ static int acpi_sleep_prepare(u32 acpi_state) static u32 acpi_target_sleep_state = ACPI_STATE_S0; /* + * The ACPI specification wants us to save NVS memory regions during hibernation + * and to restore them during the subsequent resume. Windows does that also for + * suspend to RAM. However, it is known that this mechanism does not work on + * all machines, so we allow the user to disable it with the help of the + * 'acpi_sleep=nonvs' kernel command line option. + */ +static bool nvs_nosave; + +void __init acpi_nvs_nosave(void) +{ + nvs_nosave = true; +} + +/* * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the * user to request that behavior by using the 'acpi_old_suspend_ordering' * kernel command line option that causes the following variable to be set. @@ -114,6 +128,8 @@ static int __acpi_pm_prepare(void) { int error = acpi_sleep_prepare(acpi_target_sleep_state); + suspend_nvs_save(); + if (error) acpi_target_sleep_state = ACPI_STATE_S0; return error; @@ -143,6 +159,9 @@ static void acpi_pm_finish(void) { u32 acpi_state = acpi_target_sleep_state; + suspend_nvs_free(); + acpi_ec_unblock_transactions(); + if (acpi_state == ACPI_STATE_S0) return; @@ -192,6 +211,10 @@ static int acpi_suspend_begin(suspend_state_t pm_state) u32 acpi_state = acpi_suspend_states[pm_state]; int error = 0; + error = nvs_nosave ? 0 : suspend_nvs_alloc(); + if (error) + return error; + if (sleep_states[acpi_state]) { acpi_target_sleep_state = acpi_state; acpi_sleep_tts_switch(acpi_target_sleep_state); @@ -269,12 +292,13 @@ static int acpi_suspend_enter(suspend_state_t pm_state) if (acpi_state == ACPI_STATE_S3) acpi_restore_state_mem(); + suspend_nvs_restore(); + return ACPI_SUCCESS(status) ? 0 : -EFAULT; } static void acpi_suspend_finish(void) { - acpi_ec_unblock_transactions(); acpi_pm_finish(); } @@ -377,20 +401,6 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = { #endif /* CONFIG_SUSPEND */ #ifdef CONFIG_HIBERNATION -/* - * The ACPI specification wants us to save NVS memory regions during hibernation - * and to restore them during the subsequent resume. However, it is not certain - * if this mechanism is going to work on all machines, so we allow the user to - * disable this mechanism using the 'acpi_sleep=s4_nonvs' kernel command line - * option. - */ -static bool s4_no_nvs; - -void __init acpi_s4_no_nvs(void) -{ - s4_no_nvs = true; -} - static unsigned long s4_hardware_signature; static struct acpi_table_facs *facs; static bool nosigcheck; @@ -404,7 +414,7 @@ static int acpi_hibernation_begin(void) { int error; - error = s4_no_nvs ? 0 : hibernate_nvs_alloc(); + error = nvs_nosave ? 0 : suspend_nvs_alloc(); if (!error) { acpi_target_sleep_state = ACPI_STATE_S4; acpi_sleep_tts_switch(acpi_target_sleep_state); @@ -418,7 +428,7 @@ static int acpi_hibernation_pre_snapshot(void) int error = acpi_pm_prepare(); if (!error) - hibernate_nvs_save(); + suspend_nvs_save(); return error; } @@ -441,13 +451,6 @@ static int acpi_hibernation_enter(void) return ACPI_SUCCESS(status) ? 0 : -EFAULT; } -static void acpi_hibernation_finish(void) -{ - hibernate_nvs_free(); - acpi_ec_unblock_transactions(); - acpi_pm_finish(); -} - static void acpi_hibernation_leave(void) { /* @@ -464,7 +467,7 @@ static void acpi_hibernation_leave(void) panic("ACPI S4 hardware signature mismatch"); } /* Restore the NVS memory area */ - hibernate_nvs_restore(); + suspend_nvs_restore(); /* Allow EC transactions to happen. */ acpi_ec_unblock_transactions_early(); } @@ -479,7 +482,7 @@ static struct platform_hibernation_ops acpi_hibernation_ops = { .begin = acpi_hibernation_begin, .end = acpi_pm_end, .pre_snapshot = acpi_hibernation_pre_snapshot, - .finish = acpi_hibernation_finish, + .finish = acpi_pm_finish, .prepare = acpi_pm_prepare, .enter = acpi_hibernation_enter, .leave = acpi_hibernation_leave, @@ -506,8 +509,8 @@ static int acpi_hibernation_begin_old(void) error = acpi_sleep_prepare(ACPI_STATE_S4); if (!error) { - if (!s4_no_nvs) - error = hibernate_nvs_alloc(); + if (!nvs_nosave) + error = suspend_nvs_alloc(); if (!error) acpi_target_sleep_state = ACPI_STATE_S4; } @@ -517,7 +520,7 @@ static int acpi_hibernation_begin_old(void) static int acpi_hibernation_pre_snapshot_old(void) { acpi_pm_freeze(); - hibernate_nvs_save(); + suspend_nvs_save(); return 0; } @@ -529,8 +532,8 @@ static struct platform_hibernation_ops acpi_hibernation_ops_old = { .begin = acpi_hibernation_begin_old, .end = acpi_pm_end, .pre_snapshot = acpi_hibernation_pre_snapshot_old, - .finish = acpi_hibernation_finish, .prepare = acpi_pm_freeze, + .finish = acpi_pm_finish, .enter = acpi_hibernation_enter, .leave = acpi_hibernation_leave, .pre_restore = acpi_pm_freeze, diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c index c79e789ed03..f8db50a0941 100644 --- a/drivers/acpi/system.c +++ b/drivers/acpi/system.c @@ -388,10 +388,12 @@ static ssize_t counter_set(struct kobject *kobj, if (index < num_gpes) { if (!strcmp(buf, "disable\n") && (status & ACPI_EVENT_FLAG_ENABLED)) - result = acpi_set_gpe(handle, index, ACPI_GPE_DISABLE); + result = acpi_disable_gpe(handle, index, + ACPI_GPE_TYPE_RUNTIME); else if (!strcmp(buf, "enable\n") && !(status & ACPI_EVENT_FLAG_ENABLED)) - result = acpi_set_gpe(handle, index, ACPI_GPE_ENABLE); + result = acpi_enable_gpe(handle, index, + ACPI_GPE_TYPE_RUNTIME); else if (!strcmp(buf, "clear\n") && (status & ACPI_EVENT_FLAG_SET)) result = acpi_clear_gpe(handle, index); diff --git a/drivers/acpi/wakeup.c b/drivers/acpi/wakeup.c index 4b9d339a6e2..388747a7ef4 100644 --- a/drivers/acpi/wakeup.c +++ b/drivers/acpi/wakeup.c @@ -64,16 +64,13 @@ void acpi_enable_wakeup_device(u8 sleep_state) struct acpi_device *dev = container_of(node, struct acpi_device, wakeup_list); - if (!dev->wakeup.flags.valid) - continue; - - if ((!dev->wakeup.state.enabled && !dev->wakeup.prepare_count) + if (!dev->wakeup.flags.valid || !dev->wakeup.state.enabled || sleep_state > (u32) dev->wakeup.sleep_state) continue; /* The wake-up power should have been enabled already. */ - acpi_set_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number, - ACPI_GPE_ENABLE); + acpi_enable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number, + ACPI_GPE_TYPE_WAKE); } } @@ -96,6 +93,8 @@ void acpi_disable_wakeup_device(u8 sleep_state) || (sleep_state > (u32) dev->wakeup.sleep_state)) continue; + acpi_disable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number, + ACPI_GPE_TYPE_WAKE); acpi_disable_wakeup_device_power(dev); } } @@ -109,13 +108,8 @@ int __init acpi_wakeup_device_init(void) struct acpi_device *dev = container_of(node, struct acpi_device, wakeup_list); - /* In case user doesn't load button driver */ - if (!dev->wakeup.flags.always_enabled || - dev->wakeup.state.enabled) - continue; - acpi_enable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number, - ACPI_GPE_TYPE_WAKE); - dev->wakeup.state.enabled = 1; + if (dev->wakeup.flags.always_enabled) + dev->wakeup.state.enabled = 1; } mutex_unlock(&acpi_device_lock); return 0; |