From: Lukas Wunner <lukas@wunner.de>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Linux ACPI <linux-acpi@vger.kernel.org>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
Linux PCI <linux-pci@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Lv Zheng <lv.zheng@intel.com>, Bob Moore <robert.moore@intel.com>
Subject: Re: [PATCH 3/3] ACPI / scan: Enable GPEs before scanning the namespace
Date: Thu, 10 Aug 2017 07:10:16 +0200 [thread overview]
Message-ID: <20170810051016.GA7953@wunner.de> (raw)
In-Reply-To: <6344941.kJ2o2XerZ0@aspire.rjw.lan>
On Thu, Aug 10, 2017 at 12:34:23AM +0200, Rafael J. Wysocki wrote:
> --- linux-pm.orig/drivers/acpi/scan.c
> +++ linux-pm/drivers/acpi/scan.c
> @@ -2139,6 +2139,10 @@ int __init acpi_scan_init(void)
> acpi_get_spcr_uart_addr();
> }
>
> + acpi_gpe_apply_masked_gpes();
> + acpi_update_all_gpes();
> + acpi_ec_ecdt_start();
> +
> mutex_lock(&acpi_scan_lock);
> /*
> * Enumerate devices in the ACPI namespace.
I notice this is called from a subsys_initcall(). We scan the PCI bus
much earlier in arch/x86/kernel/early-quirks.c and it would be possible
to identify presence of Thunderbolt host controllers in an early quirk
(using the method of pci_is_thunderbolt_attached()) and, if found,
enable their GPEs or all GPEs.
Just as an aside in case your method doesn't work, I'm not affected by
this issue being a Mac user... ;-)
Thanks,
Lukas
next prev parent reply other threads:[~2017-08-10 5:10 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-09 22:29 [PATCH 0/3] ACPI: Initialize GPEs before the initial namespace scan Rafael J. Wysocki
2017-08-09 22:30 ` [PATCH 1/3] ACPICA: Dispatch active GPEs at init time Rafael J. Wysocki
2017-08-10 1:48 ` Zheng, Lv
2017-08-10 16:06 ` Rafael J. Wysocki
2017-08-11 5:40 ` Zheng, Lv
2017-08-11 12:23 ` Rafael J. Wysocki
2017-08-15 9:59 ` Zheng, Lv
2017-08-15 12:21 ` Rafael J. Wysocki
2017-08-17 2:24 ` Zheng, Lv
2017-08-09 22:31 ` [PATCH 2/3] ACPICA: Make it possible to enable runtime GPEs earlier Rafael J. Wysocki
2017-08-10 1:52 ` Zheng, Lv
2017-08-10 16:07 ` Rafael J. Wysocki
2017-08-11 6:13 ` Zheng, Lv
2017-08-09 22:34 ` [PATCH 3/3] ACPI / scan: Enable GPEs before scanning the namespace Rafael J. Wysocki
2017-08-10 1:54 ` Zheng, Lv
2017-08-10 5:10 ` Lukas Wunner [this message]
2017-08-10 7:45 ` Zheng, Lv
2017-08-10 8:23 ` Mika Westerberg
2017-08-15 2:12 ` Zheng, Lv
2017-08-15 12:22 ` Rafael J. Wysocki
2017-08-17 2:25 ` Zheng, Lv
2017-08-10 9:34 ` [PATCH 0/3] ACPI: Initialize GPEs before the initial namespace scan Mika Westerberg
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