From: aleksey.makarov@linaro.org (Aleksey Makarov)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 1/5] ACPI: table upgrade: use cacheable map for tables
Date: Mon, 20 Jun 2016 13:56:09 +0300 [thread overview]
Message-ID: <20160620105615.15538-2-aleksey.makarov@linaro.org> (raw)
In-Reply-To: <20160620105615.15538-1-aleksey.makarov@linaro.org>
The new memory allocated in acpi_table_initrd_init() is used to
copy the upgraded tables to it. So it should be mapped with
early_memunmap() instead of early_ioremap().
This is critical for ARM.
Signed-off-by: Aleksey Makarov <aleksey.makarov@linaro.org>
Acked-by: Lv Zheng <lv.zheng@intel.com>
---
drivers/acpi/tables.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index a372f9e..f829e6a 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -578,10 +578,10 @@ static void __init acpi_table_initrd_init(void *data, size_t size)
clen = size;
if (clen > MAP_CHUNK_SIZE - slop)
clen = MAP_CHUNK_SIZE - slop;
- dest_p = early_ioremap(dest_addr & PAGE_MASK,
- clen + slop);
+ dest_p = early_memremap(dest_addr & PAGE_MASK,
+ clen + slop);
memcpy(dest_p + slop, src_p, clen);
- early_iounmap(dest_p, clen + slop);
+ early_memunmap(dest_p, clen + slop);
src_p += clen;
dest_addr += clen;
size -= clen;
--
2.8.3
next prev parent reply other threads:[~2016-06-20 10:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-20 10:56 [PATCH v4 0/5] ACPI: ARM64: support for ACPI_TABLE_UPGRADE Aleksey Makarov
2016-06-20 10:56 ` Aleksey Makarov [this message]
2016-06-20 10:56 ` [PATCH v4 2/5] ACPI: table upgrade: refactor function definitions Aleksey Makarov
2016-06-20 10:56 ` [PATCH v4 3/5] ACPI: table upgrade: move arch-specific symbol to asm/acpi.h Aleksey Makarov
2016-06-20 10:56 ` [PATCH v4 4/5] ACPI: table upgrade: introduce ARCH_HAS_ACPI_TABLE_UPGRADE Aleksey Makarov
2016-06-20 10:56 ` [PATCH v4 5/5] ACPI: ARM64: support for ACPI_TABLE_UPGRADE Aleksey Makarov
2016-06-21 23:31 ` [PATCH v4 0/5] " Rafael J. Wysocki
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