From: Yinghai Lu <yinghai@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
"H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
Tejun Heo <tj@kernel.org>, Thomas Renninger <trenn@suse.de>,
Tang Chen <tangchen@cn.fujitsu.com>
Cc: linux-kernel@vger.kernel.org, Yinghai Lu <yinghai@kernel.org>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
linux-acpi@vger.kernel.org
Subject: [PATCH v4 04/22] x86, ACPI: Search buffer above 4G in second try for acpi override tables
Date: Thu, 11 Apr 2013 17:55:50 -0700 [thread overview]
Message-ID: <1365728168-32067-5-git-send-email-yinghai@kernel.org> (raw)
In-Reply-To: <1365728168-32067-1-git-send-email-yinghai@kernel.org>
Now we only search buffer for override acpi table under 4G.
In some case, like user use memmap to exclude all low ram,
we may not find range for it under 4G.
Do second try to search above 4G.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: linux-acpi@vger.kernel.org
Tested-by: Thomas Renninger <trenn@suse.de>
---
drivers/acpi/osl.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 313d14d..c08cdb6 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -627,6 +627,10 @@ void __init acpi_initrd_override(void *data, size_t size)
/* under 4G at first, then above 4G */
acpi_tables_addr = memblock_find_in_range(0, (1ULL<<32) - 1,
all_tables_size, PAGE_SIZE);
+ if (!acpi_tables_addr)
+ acpi_tables_addr = memblock_find_in_range(0,
+ ~(phys_addr_t)0,
+ all_tables_size, PAGE_SIZE);
if (!acpi_tables_addr) {
WARN_ON(1);
return;
--
1.8.1.4
next prev parent reply other threads:[~2013-04-12 0:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1365728168-32067-1-git-send-email-yinghai@kernel.org>
2013-04-12 0:55 ` [PATCH v4 03/22] x86, ACPI, mm: Kill max_low_pfn_mapped Yinghai Lu
2013-06-05 8:36 ` Tang Chen
2013-04-12 0:55 ` Yinghai Lu [this message]
2013-04-12 0:55 ` [PATCH v4 05/22] x86, ACPI: Increase override tables number limit Yinghai Lu
2013-04-12 0:55 ` [PATCH v4 06/22] x86, ACPI: Split acpi_initrd_override to find/copy two functions Yinghai Lu
2013-04-12 0:55 ` [PATCH v4 07/22] x86, ACPI: Store override acpi tables phys addr in cpio files info array Yinghai Lu
2013-04-12 0:55 ` [PATCH v4 08/22] x86, ACPI: Make acpi_initrd_override_find work with 32bit flat mode Yinghai Lu
2013-04-12 0:55 ` [PATCH v4 09/22] x86, ACPI: Find acpi tables in initrd early from head_32.S/head64.c Yinghai Lu
2013-04-12 0:56 ` [PATCH v4 17/22] x86, ACPI, numa, ia64: split SLIT handling out Yinghai Lu
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