From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: [PATCH 1/2] ACPICA: Introduce acpi_dispatch_gpe() Date: Wed, 16 May 2018 14:12:03 +0200 Message-ID: <1877957.ohNgiH8Sko@aspire.rjw.lan> References: <2406722.gU2bUHd7bl@aspire.rjw.lan> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: In-Reply-To: <2406722.gU2bUHd7bl@aspire.rjw.lan> Sender: linux-kernel-owner@vger.kernel.org To: Linux ACPI Cc: Zhang Rui , Linux PM , LKML , Erik Schmauss , Bob Moore , "Wang, Wendy" List-Id: linux-acpi@vger.kernel.org From: Rafael J. Wysocki Introduce acpi_dispatch_gpe() as a wrapper around acpi_ev_detect_gpe() for checking if the given GPE (as represented by a GPE device handle and a GPE number) is currently active and dispatching it (if that's the case) outside of interrupt context. Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/evgpe.c | 6 ++++++ drivers/acpi/acpica/evxfgpe.c | 22 ++++++++++++++++++++++ include/acpi/acpixf.h | 1 + 3 files changed, 29 insertions(+) Index: linux-pm/drivers/acpi/acpica/evgpe.c =================================================================== --- linux-pm.orig/drivers/acpi/acpica/evgpe.c +++ linux-pm/drivers/acpi/acpica/evgpe.c @@ -634,6 +634,12 @@ acpi_ev_detect_gpe(struct acpi_namespace flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + if (!gpe_event_info) { + gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); + if (!gpe_event_info) + goto error_exit; + } + /* Get the info block for the entire GPE register */ gpe_register_info = gpe_event_info->register_info; Index: linux-pm/drivers/acpi/acpica/evxfgpe.c =================================================================== --- linux-pm.orig/drivers/acpi/acpica/evxfgpe.c +++ linux-pm/drivers/acpi/acpica/evxfgpe.c @@ -639,6 +639,28 @@ ACPI_EXPORT_SYMBOL(acpi_get_gpe_status) /******************************************************************************* * + * FUNCTION: acpi_gispatch_gpe + * + * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1 + * gpe_number - GPE level within the GPE block + * + * RETURN: None + * + * DESCRIPTION: Detect and dispatch a General Purpose Event to either a function + * (e.g. EC) or method (e.g. _Lxx/_Exx) handler. + * + ******************************************************************************/ +void acpi_dispatch_gpe(acpi_handle gpe_device, u32 gpe_number) +{ + ACPI_FUNCTION_TRACE(acpi_dispatch_gpe); + + acpi_ev_detect_gpe(gpe_device, NULL, gpe_number); +} + +ACPI_EXPORT_SYMBOL(acpi_dispatch_gpe) + +/******************************************************************************* + * * FUNCTION: acpi_finish_gpe * * PARAMETERS: gpe_device - Namespace node for the GPE Block Index: linux-pm/include/acpi/acpixf.h =================================================================== --- linux-pm.orig/include/acpi/acpixf.h +++ linux-pm/include/acpi/acpixf.h @@ -753,6 +753,7 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_sta u32 gpe_number, acpi_event_status *event_status)) +void acpi_dispatch_gpe(acpi_handle gpe_device, u32 gpe_number); ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable_all_gpes(void)) ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable_all_runtime_gpes(void)) ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable_all_wakeup_gpes(void))